[PATCH 4/7] The C6X port
Bernd Schmidt
bernds_cb1 at t-online.de
Wed Mar 2 20:21:54 UTC 2011
From: Aurelien Jacquiot <a-jacquiot at ti.com>
This adds support for the TI C6X family of processors.
Signed-off-by: Mark Salter <msalter at redhat.com>
Signed-off-by: Aurelien Jacquiot <a-jacquiot at ti.com>
Signed-off-by: Bernd Schmidt <bernds at codesourcery.com>
---
Rules.mak | 12 +
extra/Configs/Config.c6x | 34 +++
extra/Configs/Config.in | 7 +
extra/Configs/Config.in.arch | 4 +
include/elf.h | 45 +++
ldso/ldso/c6x/dl-debug.h | 49 ++++
ldso/ldso/c6x/dl-inlines.h | 91 ++++++
ldso/ldso/c6x/dl-startup.h | 122 ++++++++
ldso/ldso/c6x/dl-syscalls.h | 25 ++
ldso/ldso/c6x/dl-sysdep.h | 209 ++++++++++++++
ldso/ldso/c6x/elfinterp.c | 296 ++++++++++++++++++++
ldso/ldso/c6x/resolve.S | 68 +++++
libc/sysdeps/linux/c6x/Makefile | 13 +
libc/sysdeps/linux/c6x/Makefile.arch | 15 +
libc/sysdeps/linux/c6x/__longjmp.S | 47 +++
libc/sysdeps/linux/c6x/_vfork.S | 55 ++++
libc/sysdeps/linux/c6x/bits/byteswap.h | 35 +++
libc/sysdeps/linux/c6x/bits/elf-dsbt.h | 123 ++++++++
libc/sysdeps/linux/c6x/bits/endian.h | 11 +
libc/sysdeps/linux/c6x/bits/fcntl.h | 235 ++++++++++++++++
libc/sysdeps/linux/c6x/bits/kernel_stat.h | 52 ++++
libc/sysdeps/linux/c6x/bits/kernel_types.h | 46 +++
libc/sysdeps/linux/c6x/bits/mathdef.h | 39 +++
libc/sysdeps/linux/c6x/bits/nan.h | 57 ++++
libc/sysdeps/linux/c6x/bits/poll.h | 43 +++
libc/sysdeps/linux/c6x/bits/resource.h | 209 ++++++++++++++
libc/sysdeps/linux/c6x/bits/setjmp.h | 39 +++
libc/sysdeps/linux/c6x/bits/sigcontextinfo.h | 26 ++
libc/sysdeps/linux/c6x/bits/stackinfo.h | 28 ++
libc/sysdeps/linux/c6x/bits/stat.h | 174 ++++++++++++
libc/sysdeps/linux/c6x/bits/syscalls.h | 182 ++++++++++++
libc/sysdeps/linux/c6x/bits/uClibc_arch_features.h | 48 ++++
libc/sysdeps/linux/c6x/bits/wordsize.h | 19 ++
libc/sysdeps/linux/c6x/brk.c | 54 ++++
libc/sysdeps/linux/c6x/bsd-_setjmp.s | 48 ++++
libc/sysdeps/linux/c6x/bsd-setjmp.S | 67 +++++
libc/sysdeps/linux/c6x/clone.S | 97 +++++++
libc/sysdeps/linux/c6x/crt1.S | 67 +++++
libc/sysdeps/linux/c6x/crti.S | 17 ++
libc/sysdeps/linux/c6x/crtn.S | 19 ++
libc/sysdeps/linux/c6x/prctl.c | 43 +++
libc/sysdeps/linux/c6x/pread_write.c | 103 +++++++
libc/sysdeps/linux/c6x/setjmp.s | 43 +++
libc/sysdeps/linux/c6x/sigaction.c | 115 ++++++++
libc/sysdeps/linux/c6x/sys/procfs.h | 122 ++++++++
libc/sysdeps/linux/c6x/sys/reg.h | 26 ++
libc/sysdeps/linux/c6x/sys/ucontext.h | 39 +++
libc/sysdeps/linux/c6x/sys/user.h | 28 ++
libc/sysdeps/linux/c6x/syscall.c | 49 ++++
libc/sysdeps/linux/c6x/vfork.c | 26 ++
libc/sysdeps/linux/common/Makefile.in | 1 +
.../linuxthreads.old/sysdeps/c6x/pt-machine.h | 64 +++++
52 files changed, 3486 insertions(+), 0 deletions(-)
create mode 100644 extra/Configs/Config.c6x
create mode 100644 ldso/ldso/c6x/dl-debug.h
create mode 100644 ldso/ldso/c6x/dl-inlines.h
create mode 100644 ldso/ldso/c6x/dl-startup.h
create mode 100644 ldso/ldso/c6x/dl-syscalls.h
create mode 100644 ldso/ldso/c6x/dl-sysdep.h
create mode 100644 ldso/ldso/c6x/elfinterp.c
create mode 100644 ldso/ldso/c6x/resolve.S
create mode 100644 libc/sysdeps/linux/c6x/Makefile
create mode 100644 libc/sysdeps/linux/c6x/Makefile.arch
create mode 100644 libc/sysdeps/linux/c6x/__longjmp.S
create mode 100644 libc/sysdeps/linux/c6x/_vfork.S
create mode 100644 libc/sysdeps/linux/c6x/bits/byteswap.h
create mode 100644 libc/sysdeps/linux/c6x/bits/elf-dsbt.h
create mode 100644 libc/sysdeps/linux/c6x/bits/endian.h
create mode 100644 libc/sysdeps/linux/c6x/bits/fcntl.h
create mode 100644 libc/sysdeps/linux/c6x/bits/kernel_stat.h
create mode 100644 libc/sysdeps/linux/c6x/bits/kernel_types.h
create mode 100644 libc/sysdeps/linux/c6x/bits/mathdef.h
create mode 100644 libc/sysdeps/linux/c6x/bits/nan.h
create mode 100644 libc/sysdeps/linux/c6x/bits/poll.h
create mode 100644 libc/sysdeps/linux/c6x/bits/resource.h
create mode 100644 libc/sysdeps/linux/c6x/bits/setjmp.h
create mode 100644 libc/sysdeps/linux/c6x/bits/sigcontextinfo.h
create mode 100644 libc/sysdeps/linux/c6x/bits/stackinfo.h
create mode 100644 libc/sysdeps/linux/c6x/bits/stat.h
create mode 100644 libc/sysdeps/linux/c6x/bits/syscalls.h
create mode 100644 libc/sysdeps/linux/c6x/bits/uClibc_arch_features.h
create mode 100644 libc/sysdeps/linux/c6x/bits/wordsize.h
create mode 100644 libc/sysdeps/linux/c6x/brk.c
create mode 100644 libc/sysdeps/linux/c6x/bsd-_setjmp.s
create mode 100644 libc/sysdeps/linux/c6x/bsd-setjmp.S
create mode 100644 libc/sysdeps/linux/c6x/clone.S
create mode 100644 libc/sysdeps/linux/c6x/crt1.S
create mode 100644 libc/sysdeps/linux/c6x/crti.S
create mode 100644 libc/sysdeps/linux/c6x/crtn.S
create mode 100644 libc/sysdeps/linux/c6x/prctl.c
create mode 100644 libc/sysdeps/linux/c6x/pread_write.c
create mode 100644 libc/sysdeps/linux/c6x/setjmp.s
create mode 100644 libc/sysdeps/linux/c6x/sigaction.c
create mode 100644 libc/sysdeps/linux/c6x/sys/procfs.h
create mode 100644 libc/sysdeps/linux/c6x/sys/reg.h
create mode 100644 libc/sysdeps/linux/c6x/sys/ucontext.h
create mode 100644 libc/sysdeps/linux/c6x/sys/user.h
create mode 100644 libc/sysdeps/linux/c6x/syscall.c
create mode 100644 libc/sysdeps/linux/c6x/vfork.c
create mode 100644 libpthread/linuxthreads.old/sysdeps/c6x/pt-machine.h
diff --git a/Rules.mak b/Rules.mak
index 8165cca..abf958b 100644
--- a/Rules.mak
+++ b/Rules.mak
@@ -218,10 +218,12 @@ ifeq ($(UCLIBC_HAS_SOFT_FLOAT),y)
ifneq ($(TARGET_ARCH),nios)
ifneq ($(TARGET_ARCH),nios2)
ifneq ($(TARGET_ARCH),sh)
+ifneq ($(TARGET_ARCH),c6x)
CPU_CFLAGS-y += -msoft-float
endif
endif
endif
+endif
ifeq ($(TARGET_ARCH),arm)
# No longer needed with current toolchains, but leave it here for now.
# If anyone is actually still using gcc 2.95 (say), they can uncomment it.
@@ -239,6 +241,7 @@ CPU_LDFLAGS-$(ARCH_BIG_ENDIAN) += -Wl,-EB
PICFLAG-y := -fPIC
PICFLAG-$(UCLIBC_FORMAT_FDPIC_ELF) := -mfdpic
+PICFLAG-$(UCLIBC_FORMAT_DSBT_ELF) := -mdsbt -fpic
PICFLAG := $(PICFLAG-y)
PIEFLAG_NAME:=-fPIE
@@ -485,6 +488,15 @@ ifeq ($(TARGET_ARCH),v850)
SYMBOL_PREFIX=_
endif
+ifeq ($(TARGET_ARCH),c6x)
+ PIEFLAG:=
+ CPU_CFLAGS-$(CONFIG_TMS320C64X) += -march=c64x
+ CPU_CFLAGS-$(CONFIG_TMS320C64XPLUS) += -march=c64x+
+ CPU_CFLAGS-$(ARCH_LITTLE_ENDIAN)+=-mlittle-endian
+ CPU_CFLAGS-$(ARCH_BIG_ENDIAN)+=-mbig-endian
+ CPU_LDFLAGS-y += $(CPU_CFLAGS)
+endif
+
# Keep the check_gcc from being needlessly executed
ifndef PIEFLAG
export PIEFLAG:=$(call check_gcc,$(PIEFLAG_NAME),$(PICFLAG))
diff --git a/extra/Configs/Config.c6x b/extra/Configs/Config.c6x
new file mode 100644
index 0000000..d71df3f
--- /dev/null
+++ b/extra/Configs/Config.c6x
@@ -0,0 +1,34 @@
+#
+# For a description of the syntax of this configuration file,
+# see extra/config/Kconfig-language.txt
+#
+
+config TARGET_ARCH
+ default "c6x"
+
+config FORCE_OPTIONS_FOR_ARCH
+ bool
+ default y
+ select ARCH_ANY_ENDIAN
+
+config ARCH_CFLAGS
+ string
+
+config ARCH_LDFLAGS
+ string
+
+choice
+ prompt "Target Processor Type"
+ default CONFIG_GENERIC_C6X
+
+config CONFIG_GENERIC_C6X
+ bool "Generic C6X DSP"
+
+config CONFIG_TMS320C64X
+ bool "TMS320C64X"
+
+config CONFIG_TMS320C64XPLUS
+ bool "TMS320C64X+"
+
+endchoice
+
diff --git a/extra/Configs/Config.in b/extra/Configs/Config.in
index f152a96..8a1f6ea 100644
--- a/extra/Configs/Config.in
+++ b/extra/Configs/Config.in
@@ -114,6 +114,9 @@ config TARGET_x86_64
config TARGET_xtensa
bool "xtensa"
+config TARGET_c6x
+ bool "c6x"
+
endchoice
@@ -219,6 +222,10 @@ if TARGET_xtensa
source "extra/Configs/Config.xtensa"
endif
+if TARGET_c6x
+source "extra/Configs/Config.c6x"
+endif
+
config TARGET_SUBARCH
string
default "e500" if CONFIG_E500
diff --git a/extra/Configs/Config.in.arch b/extra/Configs/Config.in.arch
index 068bccc..5f7a2b0 100644
--- a/extra/Configs/Config.in.arch
+++ b/extra/Configs/Config.in.arch
@@ -17,6 +17,10 @@ config UCLIBC_FORMAT_FDPIC_ELF
bool "FDPIC ELF"
depends on !ARCH_USE_MMU && (TARGET_bfin || TARGET_frv)
select DOPIC
+config UCLIBC_FORMAT_DSBT_ELF
+ bool "DBST ELF"
+ depends on !ARCH_USE_MMU && TARGET_c6x
+ select DOPIC
config UCLIBC_FORMAT_FLAT
bool "STATIC FLAT"
depends on !ARCH_USE_MMU
diff --git a/include/elf.h b/include/elf.h
index b86aa52..d71691e 100644
--- a/include/elf.h
+++ b/include/elf.h
@@ -268,6 +268,7 @@ typedef struct
#define EM_ALTERA_NIOS2 113 /* Altera Nios II soft-core processor */
#define EM_CRX 114 /* National Semiconductor CRX */
#define EM_NUM 95
+#define EM_TI_C6000 140
/* If it is necessary to assign new unofficial EM_* values, please pick large
random numbers (0x8523, 0xa7f2, etc.) to minimize the chances of collision
@@ -3063,6 +3064,50 @@ typedef Elf32_Addr Elf32_Conflict;
/* Keep this the last entry. */
#define R_XTENSA_NUM 50
+/* C6X specific relocs */
+#define R_C6000_NONE 0
+#define R_C6000_ABS32 1
+#define R_C6000_ABS16 2
+#define R_C6000_ABS8 3
+#define R_C6000_PCR_S21 4
+#define R_C6000_PCR_S12 5
+#define R_C6000_PCR_S10 6
+#define R_C6000_PCR_S7 7
+#define R_C6000_ABS_S16 8
+#define R_C6000_ABS_L16 9
+#define R_C6000_ABS_H16 10
+#define R_C6000_SBR_U15_B 11
+#define R_C6000_SBR_U15_H 12
+#define R_C6000_SBR_U15_W 13
+#define R_C6000_SBR_S16 14
+#define R_C6000_SBR_L16_B 15
+#define R_C6000_SBR_L16_H 16
+#define R_C6000_SBR_L16_W 17
+#define R_C6000_SBR_H16_B 18
+#define R_C6000_SBR_H16_H 19
+#define R_C6000_SBR_H16_W 20
+#define R_C6000_SBR_GOT_U15_W 21
+#define R_C6000_SBR_GOT_L16_W 22
+#define R_C6000_SBR_GOT_H16_W 23
+#define R_C6000_DSBT_INDEX 24
+#define R_C6000_PREL31 25
+#define R_C6000_COPY 26
+#define R_C6000_JUMP_SLOT 27
+#define R_C6000_SBR_GOT32 28
+#define R_C6000_PCR_H16 29
+#define R_C6000_PCR_L16 30
+#define R_C6000_ALIGN 253
+#define R_C6000_FPHEAD 254
+#define R_C6000_NOCMP 255
+
+/* C6x specific values for the Dyn d_tag field. */
+#define DT_C6000_DSBT_BASE (DT_LOPROC + 0)
+#define DT_C6000_DSBT_SIZE (DT_LOPROC + 1)
+#define DT_C6000_PREEMPTMAP (DT_LOPROC + 2)
+#define DT_C6000_DSBT_INDEX (DT_LOPROC + 3)
+
+#define DT_C6000_NUM 4
+
#ifdef __cplusplus
}
#endif
diff --git a/ldso/ldso/c6x/dl-debug.h b/ldso/ldso/c6x/dl-debug.h
new file mode 100644
index 0000000..9c6edab
--- /dev/null
+++ b/ldso/ldso/c6x/dl-debug.h
@@ -0,0 +1,49 @@
+/* C6X DSBT ELF shared library loader suppport.
+ *
+ * Copyright (C) 2010 Texas Instruments Incorporated
+ * Contributed by Mark Salter <msalter at redhat.com>
+ *
+ * All rights reserved.
+ *
+ * Licensed under the LGPL v2.1, see the file COPYING.LIB in this tarball.
+ */
+
+static const char *_dl_reltypes_tab[] =
+{
+ "R_C6000_NONE", /* 0 */
+ "R_C6000_ABS32",
+ "R_C6000_ABS16",
+ "R_C6000_ABS8",
+ "R_C6000_PCR_S21",
+ "R_C6000_PCR_S12", /* 5 */
+ "R_C6000_PCR_S10",
+ "R_C6000_PCR_S7",
+ "R_C6000_ABS_S16",
+ "R_C6000_ABS_L16",
+ "R_C6000_ABS_H16", /* 10 */
+ "R_C6000_SBR_U15_B",
+ "R_C6000_SBR_U15_H",
+ "R_C6000_SBR_U15_W",
+ "R_C6000_SBR_S16",
+ "R_C6000_SBR_L16_B", /* 15 */
+ "R_C6000_SBR_L16_H",
+ "R_C6000_SBR_L16_W",
+ "R_C6000_SBR_H16_B",
+ "R_C6000_SBR_H16_H",
+ "R_C6000_SBR_H16_W", /* 20 */
+ "R_C6000_SBR_GOT_U15_W",
+ "R_C6000_SBR_GOT_L16_W",
+ "R_C6000_SBR_GOT_H16_W",
+ "R_C6000_DSBT_INDEX",
+ "R_C6000_PREL31", /* 25 */
+ "R_C6000_COPY",
+ "R_C6000_JUMP_SLOT",
+ "R_C6000_SBR_GOT32",
+ "R_C6000_PCR_H16",
+ "R_C6000_PCR_L16", /* 30 */
+#if 0
+ "R_C6000_ALIGN", /* 253 */
+ "R_C6000_FPHEAD", /* 254 */
+ "R_C6000_NOCMP", /* 255 */
+#endif
+};
diff --git a/ldso/ldso/c6x/dl-inlines.h b/ldso/ldso/c6x/dl-inlines.h
new file mode 100644
index 0000000..d8fb42c
--- /dev/null
+++ b/ldso/ldso/c6x/dl-inlines.h
@@ -0,0 +1,91 @@
+/* Copyright (C) 2010 Texas Instruments Incorporated
+ * Contributed by Mark Salter <msalter at redhat.com>
+ *
+ * Borrowed heavily from frv arch:
+ * Copyright (C) 2003, 2004 Red Hat, Inc.
+ *
+ * Licensed under the LGPL v2.1, see the file COPYING.LIB in this tarball.
+ */
+
+/* Figure out whether the given address is in one of the mapped
+ segments. */
+static __always_inline int
+__dl_addr_in_loadaddr (void *p, struct elf32_dsbt_loadaddr loadaddr)
+{
+ struct elf32_dsbt_loadmap *map = loadaddr.map;
+ int c;
+
+ for (c = 0; c < map->nsegs; c++)
+ if ((void*)map->segs[c].addr <= p
+ && (char*)p < (char*)map->segs[c].addr + map->segs[c].p_memsz)
+ return 1;
+
+ return 0;
+}
+
+/* Figure out how many LOAD segments there are in the given headers,
+ and allocate a block for the load map big enough for them.
+ got_value will be properly initialized later on, with INIT_GOT. */
+static __always_inline int
+__dl_init_loadaddr (struct elf32_dsbt_loadaddr *loadaddr, Elf32_Phdr *ppnt,
+ int pcnt)
+{
+ int count = 0, i;
+ size_t size;
+
+ for (i = 0; i < pcnt; i++)
+ if (ppnt[i].p_type == PT_LOAD)
+ count++;
+
+ size = sizeof (struct elf32_dsbt_loadmap)
+ + sizeof (struct elf32_dsbt_loadseg) * count;
+ loadaddr->map = _dl_malloc (size);
+ if (! loadaddr->map)
+ _dl_exit (-1);
+
+ loadaddr->map->version = 0;
+ loadaddr->map->nsegs = 0;
+
+ return count;
+}
+
+/* Incrementally initialize a load map. */
+static __always_inline void
+__dl_init_loadaddr_hdr (struct elf32_dsbt_loadaddr loadaddr, void *addr,
+ Elf32_Phdr *phdr, int maxsegs)
+{
+ struct elf32_dsbt_loadseg *segdata;
+
+ if (loadaddr.map->nsegs == maxsegs)
+ _dl_exit (-1);
+
+ segdata = &loadaddr.map->segs[loadaddr.map->nsegs++];
+ segdata->addr = (Elf32_Addr) addr;
+ segdata->p_vaddr = phdr->p_vaddr;
+ segdata->p_memsz = phdr->p_memsz;
+
+#if defined (__SUPPORT_LD_DEBUG__)
+ {
+ if (_dl_debug)
+ _dl_dprintf(_dl_debug_file, "%i: mapped %x at %x, size %x\n",
+ loadaddr.map->nsegs-1,
+ segdata->p_vaddr, segdata->addr, segdata->p_memsz);
+ }
+#endif
+}
+
+static __always_inline void
+__dl_loadaddr_unmap (struct elf32_dsbt_loadaddr loadaddr)
+{
+ int i;
+
+ for (i = 0; i < loadaddr.map->nsegs; i++)
+ _dl_munmap ((void*)loadaddr.map->segs[i].addr,
+ loadaddr.map->segs[i].p_memsz);
+
+ /* _dl_unmap is only called for dlopen()ed libraries, for which
+ calling free() is safe, or before we've completed the initial
+ relocation, in which case calling free() is probably pointless,
+ but still safe. */
+ _dl_free (loadaddr.map);
+}
diff --git a/ldso/ldso/c6x/dl-startup.h b/ldso/ldso/c6x/dl-startup.h
new file mode 100644
index 0000000..b9ea304
--- /dev/null
+++ b/ldso/ldso/c6x/dl-startup.h
@@ -0,0 +1,122 @@
+/* Copyright (C) 2010 Texas Instruments Incorporated
+ * Contributed by Mark Salter <msalter at redhat.com>
+ *
+ * Borrowed heavily from frv arch:
+ * Copyright (C) 2003 Red Hat, Inc.
+ *
+ * Licensed under the LGPL v2.1, see the file COPYING.LIB in this tarball.
+ */
+
+#undef DL_START
+#define DL_START(X) \
+int \
+_dl_start (unsigned placeholder, \
+ struct elf32_dsbt_loadmap *dl_boot_progmap, \
+ struct elf32_dsbt_loadmap *dl_boot_ldsomap, \
+ Elf32_Dyn *dl_boot_ldso_dyn_pointer, \
+ X)
+
+/*
+ * On entry, the kernel has set up the stack thusly:
+ *
+ * 0(sp) pad0
+ * 4(sp) pad1
+ * 8(sp) argc
+ * 12(sp) argv[0]
+ * ...
+ * (4*(argc+3))(sp) NULL
+ * (4*(argc+4))(sp) envp[0]
+ * ...
+ * NULL
+ *
+ * Register values are unspecified, except:
+ *
+ * B4 --> executable loadmap address
+ * A6 --> interpreter loadmap address
+ * B6 --> dynamic section address
+ * B14 --> our DP setup by kernel
+ *
+ * NB: DSBT index is always 0 for the executable
+ * and 1 for the interpreter
+ */
+
+__asm__(" .text\n"
+ ".globl _start\n"
+ "_start:\n"
+ " B .S2 _dl_start\n"
+ " STW .D2T2 B14, *+B14[1]\n"
+ " ADD .D1X B15,8,A8\n"
+ " ADDKPC .S2 ret_from_dl,B3,2\n"
+ "ret_from_dl:\n"
+ " B .S2X A4\n"
+ " || LDW .D2T2 *+B14[0],B14\n"
+ " ADDKPC .S2 __dl_fini,B0,0\n"
+ " MV .S1X B0,A4\n"
+ " NOP\n"
+ " NOP\n"
+ " NOP\n"
+ "__dl_fini:\n"
+ " LDW .D2T2 *+B14[1],B14\n"
+ " NOP 4\n"
+ " LDW .D2T1 *+B14($GOT(_dl_fini)), A0\n"
+ " NOP 4\n"
+ " BNOP .S2X A0, 5\n");
+
+__asm__(" .text\n"
+ "__c6x_cache_sync:\n"
+ " MVK .S2 330,B0\n"
+ " SWE\n"
+ " NOP\n"
+ " BNOP .S2 B3,5\n"
+ " NOP\n"
+ " NOP\n"
+ " NOP\n"
+ " NOP\n"
+ "\n"
+);
+
+/*
+ * Get a pointer to the argv array. On many platforms this can be just
+ * the address of the first argument, on other platforms we need to
+ * do something a little more subtle here.
+ */
+#define GET_ARGV(ARGVP, ARGS) ARGVP = (((unsigned long*) ARGS) + 1)
+
+struct elf32_dsbt_loadmap;
+
+/*
+ * Here is a macro to perform a relocation. This is only used when
+ * bootstrapping the dynamic loader. RELP is the relocation that we
+ * are performing, REL is the pointer to the address we are relocating.
+ * SYMBOL is the symbol involved in the relocation, and LOAD is the
+ * load address.
+ */
+#define PERFORM_BOOTSTRAP_RELOC(RELP,REL,SYMBOL,LOAD,SYMTAB) \
+ switch(ELF32_R_TYPE((RELP)->r_info)){ \
+ case R_C6000_ABS_L16: \
+ { \
+ unsigned int opcode = *(REL); \
+ unsigned int v = (SYMBOL) + (RELP)->r_addend; \
+ opcode &= ~0x7fff80; \
+ opcode |= ((v & 0xffff) << 7); \
+ *(REL) = opcode; \
+ } \
+ break; \
+ case R_C6000_ABS_H16: \
+ { \
+ unsigned int opcode = *(REL); \
+ unsigned int v = (SYMBOL) + (RELP)->r_addend; \
+ opcode &= ~0x7fff80; \
+ opcode |= ((v >> 9) & 0x7fff80); \
+ *(REL) = opcode; \
+ } \
+ break; \
+ case R_C6000_ABS32: \
+ *(REL) = (SYMBOL) + (RELP)->r_addend; \
+ break; \
+ default: \
+ _dl_exit(1); \
+ }
+
+extern void __c6x_cache_sync(unsigned long start, unsigned long end)
+ attribute_hidden;
diff --git a/ldso/ldso/c6x/dl-syscalls.h b/ldso/ldso/c6x/dl-syscalls.h
new file mode 100644
index 0000000..9ff3358
--- /dev/null
+++ b/ldso/ldso/c6x/dl-syscalls.h
@@ -0,0 +1,25 @@
+/* Copyright (C) 2010 Texas Instruments Incorporated
+ * Contributed by Mark Salter <msalter at redhat.com>
+ *
+ * Licensed under the LGPL v2.1, see the file COPYING.LIB in this tarball.
+ */
+
+/* We can't use the real errno in ldso, since it has not yet
+ * been dynamicly linked in yet. */
+#include "sys/syscall.h"
+extern int _dl_errno;
+#undef __set_errno
+#define __set_errno(X) {(_dl_errno) = (X);}
+#include <sys/mman.h>
+
+#ifdef __NR_pread64
+#define __NR___syscall_pread __NR_pread64
+static __always_inline _syscall5(ssize_t, __syscall_pread, int, fd, void *, buf,
+ size_t, count, off_t, offset_hi, off_t, offset_lo);
+
+static __always_inline ssize_t
+_dl_pread(int fd, void *buf, size_t count, off_t offset)
+{
+ return(__syscall_pread(fd,buf,count, offset, offset >> 31));
+}
+#endif
diff --git a/ldso/ldso/c6x/dl-sysdep.h b/ldso/ldso/c6x/dl-sysdep.h
new file mode 100644
index 0000000..8f1b122
--- /dev/null
+++ b/ldso/ldso/c6x/dl-sysdep.h
@@ -0,0 +1,209 @@
+/* Copyright (C) 2010 Texas Instruments Incorporated
+ * Contributed by Mark Salter <msalter at redhat.com>
+ *
+ * Borrowed heavily from frv arch:
+ * Copyright (C) 2003, 2004 Red Hat, Inc.
+ *
+ * Licensed under the LGPL v2.1, see the file COPYING.LIB in this tarball.
+ */
+
+#include <bits/elf-dsbt.h>
+
+/*
+ * Define this if the system uses RELOCA.
+ */
+#define ELF_USES_RELOCA 1
+
+/* JMPREL relocs are inside the DT_RELA table. */
+/* Actually looks like a linker bug sets DT_JMPREL anyway */
+#define ELF_MACHINE_PLTREL_OVERLAP 1
+
+#undef DL_NO_COPY_RELOCS
+
+#define HAVE_DL_INLINES_H
+
+
+/*
+ * Various assembly language/system dependent hacks that are required
+ * so that we can minimize the amount of platform specific code.
+ */
+
+/* Initialization sequence for the GOT. */
+#define INIT_GOT(GOT_BASE,MODULE) \
+{ \
+ GOT_BASE[0] = (unsigned long) _dl_linux_resolve; \
+ GOT_BASE[1] = (unsigned long) MODULE; \
+}
+
+/* Here we define the magic numbers that this dynamic loader should accept */
+#define MAGIC1 EM_TI_C6000
+#undef MAGIC2
+
+/* Used for error messages */
+#define ELF_TARGET "C6000"
+
+/* Need bootstrap relocations */
+#define ARCH_NEEDS_BOOTSTRAP_RELOCS
+
+struct elf_resolve;
+
+extern int _dl_linux_resolve(void) attribute_hidden;
+
+struct funcdesc_ht;
+struct elf32_dsbt_loadaddr;
+
+/* We must force strings used early in the bootstrap into the text
+ segment (const data), such that they are referenced relative to
+ the DP register rather than through the GOT which will not have
+ been relocated when these are used. */
+#undef SEND_EARLY_STDERR
+#define SEND_EARLY_STDERR(S) \
+ do { static char __s[] = (S); SEND_STDERR (__s); } while (0)
+
+#define DL_LOADADDR_TYPE struct elf32_dsbt_loadaddr
+
+#define DL_RELOC_ADDR(LOADADDR, ADDR) \
+ ((ElfW(Addr))__reloc_pointer ((void*)(ADDR), (LOADADDR).map))
+
+#define DL_INIT_LOADADDR_BOOT(LOADADDR, BASEADDR) \
+ do { \
+ struct elf32_dsbt_loadmap *map; \
+ map = dl_boot_ldsomap ?: dl_boot_progmap; \
+ if (map->version != 0) { \
+ SEND_EARLY_STDERR ("Invalid loadmap version number\n"); \
+ _dl_exit(-1); \
+ } \
+ if (map->nsegs < 2) { \
+ SEND_EARLY_STDERR ("Invalid segment count in loadmap\n"); \
+ _dl_exit(-1); \
+ } \
+ (LOADADDR).map = map; \
+ } while(0)
+
+#define DL_INIT_LOADADDR_PROG(LOADADDR, BASEADDR) \
+ do { \
+ if (dl_boot_progmap->version != 0) { \
+ SEND_EARLY_STDERR ("Invalid loadmap version number\n"); \
+ _dl_exit(-1); \
+ } \
+ if (dl_boot_progmap->nsegs < 2) { \
+ SEND_EARLY_STDERR ("Invalid segment count in loadmap\n"); \
+ _dl_exit(-1); \
+ } \
+ (LOADADDR).map = dl_boot_progmap; \
+ } while(0)
+
+#define DL_INIT_LOADADDR_EXTRA_DECLS \
+ int dl_init_loadaddr_load_count;
+
+#define DL_INIT_LOADADDR(LOADADDR, BASEADDR, PHDR, PHDRCNT) \
+ (dl_init_loadaddr_load_count = \
+ __dl_init_loadaddr (&(LOADADDR), (PHDR), (PHDRCNT)))
+
+#define DL_INIT_LOADADDR_HDR(LOADADDR, ADDR, PHDR) \
+ (__dl_init_loadaddr_hdr ((LOADADDR), (ADDR), (PHDR), \
+ dl_init_loadaddr_load_count))
+
+#define DL_LOADADDR_UNMAP(LOADADDR, LEN) \
+ (__dl_loadaddr_unmap ((LOADADDR)))
+
+#define DL_LIB_UNMAP(LIB, LEN) \
+ (__dl_loadaddr_unmap ((LIB)->loadaddr))
+
+#define DL_LOADADDR_BASE(LOADADDR) \
+ ((LOADADDR).map->dsbt_table)
+
+#define DL_ADDR_IN_LOADADDR(ADDR, TPNT, TFROM) \
+ (! (TFROM) && __dl_addr_in_loadaddr ((void*)(ADDR), (TPNT)->loadaddr))
+
+
+/* We only support loading DSBT relocatable shared libraries.
+ It probably wouldn't be too hard to support loading statically
+ linked executables that require relocation.*/
+#define DL_CHECK_LIB_TYPE(epnt, piclib, _dl_progname, libname) \
+do \
+{ \
+ (piclib) = 2; \
+} \
+while (0)
+
+/* We want want to apply all relocations in the interpreter during
+ bootstrap. Because of this, we have to skip the interpreter
+ relocations in _dl_parse_relocation_information(), see
+ elfinterp.c. */
+#define DL_SKIP_BOOTSTRAP_RELOC(SYMTAB, INDEX, STRTAB) 0
+
+#ifdef __NR_pread64
+#define _DL_PREAD(FD, BUF, SIZE, OFFSET) \
+ (_dl_pread((FD), (BUF), (SIZE), (OFFSET)))
+#endif
+
+#define DL_GET_READY_TO_RUN_EXTRA_PARMS \
+ , struct elf32_dsbt_loadmap *dl_boot_progmap \
+ , struct elf32_dsbt_loadmap *dl_boot_ldsomap
+#define DL_GET_READY_TO_RUN_EXTRA_ARGS \
+ , dl_boot_progmap \
+ , dl_boot_ldsomap
+
+
+/*
+ * Compute the GOT address.
+ * Also setup program and interpreter DSBT table entries.
+ */
+#define DL_BOOT_COMPUTE_GOT(GOT) \
+ do { \
+ unsigned long *ldso_dsbt, *prog_dsbt; \
+ ldso_dsbt = dl_boot_ldsomap->dsbt_table; \
+ prog_dsbt = dl_boot_progmap->dsbt_table; \
+ ldso_dsbt[0] = prog_dsbt[0] = (unsigned long)prog_dsbt; \
+ ldso_dsbt[1] = prog_dsbt[1] = (unsigned long)ldso_dsbt; \
+ (GOT) = ldso_dsbt + dl_boot_ldsomap->dsbt_size; \
+ } while(0)
+
+#define DL_BOOT_COMPUTE_DYN(dpnt, got, load_addr) \
+ ((dpnt) = dl_boot_ldso_dyn_pointer)
+
+
+#ifdef __USE_GNU
+# include <link.h>
+#else
+# define __USE_GNU
+# include <link.h>
+# undef __USE_GNU
+#endif
+
+static __always_inline Elf32_Addr
+elf_machine_load_address (void)
+{
+ /* this is never an issue on DSBT systems */
+ return 0;
+}
+
+static __always_inline void
+elf_machine_relative (DL_LOADADDR_TYPE load_off, const Elf32_Addr rel_addr,
+ Elf32_Word relative_count)
+{
+}
+
+/* ELF_RTYPE_CLASS_PLT iff TYPE describes relocation of a PLT entry, so
+ PLT entries should not be allowed to define the value.
+ ELF_RTYPE_CLASS_NOCOPY iff TYPE should not be allowed to resolve to one
+ of the main executable's symbols, as for a COPY reloc. */
+#define elf_machine_type_class(type) \
+ ((((type) == R_C6000_JUMP_SLOT) * ELF_RTYPE_CLASS_PLT) \
+ | (((type) == R_C6000_COPY) * ELF_RTYPE_CLASS_COPY))
+
+#define ARCH_NUM 3
+#define DT_DSBT_BASE_IDX (DT_NUM + OS_NUM)
+#define DT_DSBT_SIZE_IDX (DT_NUM + OS_NUM + 1)
+#define DT_DSBT_INDEX_IDX (DT_NUM + OS_NUM + 2)
+
+#define ARCH_DYNAMIC_INFO(dpnt, dynamic, debug_addr) \
+do { \
+if (dpnt->d_tag == DT_C6000_DSBT_BASE) \
+ dynamic[DT_DSBT_BASE_IDX] = dpnt->d_un.d_val; \
+else if (dpnt->d_tag == DT_C6000_DSBT_SIZE) \
+ dynamic[DT_DSBT_SIZE_IDX] = dpnt->d_un.d_val; \
+else if (dpnt->d_tag == DT_C6000_DSBT_INDEX) \
+ dynamic[DT_DSBT_INDEX_IDX] = dpnt->d_un.d_val; \
+} while (0)
diff --git a/ldso/ldso/c6x/elfinterp.c b/ldso/ldso/c6x/elfinterp.c
new file mode 100644
index 0000000..7c79171
--- /dev/null
+++ b/ldso/ldso/c6x/elfinterp.c
@@ -0,0 +1,296 @@
+/* TI C64X DSBT ELF shared library loader suppport
+ * Copyright (C) 2010 Texas Instruments Incorporated
+ * Contributed by Mark Salter <msalter at redhat.com>
+ *
+ * Borrowed heavily from frv arch:
+ * Copyright (C) 2003, 2004 Red Hat, Inc.
+ * Contributed by Alexandre Oliva <aoliva at redhat.com>
+ * Lots of code copied from ../i386/elfinterp.c, so:
+ * Copyright (c) 1994-2000 Eric Youngdale, Peter MacDonald,
+ * David Engel, Hongjiu Lu and Mitch D'Souza
+ * Copyright (C) 2001-2002, Erik Andersen
+ * All rights reserved.
+ *
+ * Licensed under the LGPL v2.1, see the file COPYING.LIB in this tarball.
+ */
+
+#include <features.h>
+
+/* Program to load an ELF binary on a linux system, and run it.
+ References to symbols in sharable libraries can be resolved by either
+ an ELF sharable library or a linux style of shared library. */
+
+/* Disclaimer: I have never seen any AT&T source code for SVr4, nor have
+ I ever taken any courses on internals. This program was developed using
+ information available through the book "UNIX SYSTEM V RELEASE 4,
+ Programmers guide: Ansi C and Programming Support Tools", which did
+ a more than adequate job of explaining everything required to get this
+ working. */
+
+extern void __c6x_cache_sync(unsigned long start, unsigned long end)
+ attribute_hidden;
+
+static void
+_dl_c6x_flush_relocs(struct elf32_dsbt_loadmap *map)
+{
+ unsigned long s, e;
+ s = map->segs[0].addr;
+ e = s + map->segs[0].p_memsz;
+ __c6x_cache_sync(s, e);
+ s = map->segs[1].addr;
+ e = s + map->segs[1].p_memsz;
+ __c6x_cache_sync(s, e);
+}
+
+
+attribute_hidden
+char *
+_dl_linux_resolver (struct elf_resolve *tpnt, int reloc_entry)
+{
+ ELF_RELOC *this_reloc;
+ char *strtab;
+ ElfW(Sym) *symtab;
+ int symtab_index;
+ char *rel_addr;
+ char *new_addr;
+ char **got_addr;
+ char *symname;
+
+ rel_addr = (char *)tpnt->dynamic_info[DT_JMPREL];
+
+ this_reloc = (ELF_RELOC *)(intptr_t)(rel_addr + reloc_entry);
+ symtab_index = ELF_R_SYM(this_reloc->r_info);
+
+ symtab = (Elf32_Sym *) tpnt->dynamic_info[DT_SYMTAB];
+ strtab = (char *) tpnt->dynamic_info[DT_STRTAB];
+ symname = strtab + symtab[symtab_index].st_name;
+
+ /* Address of GOT entry fix up */
+ got_addr = (char **) DL_RELOC_ADDR(tpnt->loadaddr, this_reloc->r_offset);
+
+ /* Get the address to be used to fill in the GOT entry. */
+ new_addr = _dl_find_hash(symname, tpnt->symbol_scope, tpnt,
+ ELF_RTYPE_CLASS_PLT, NULL);
+ if (unlikely(!new_addr)) {
+ _dl_dprintf(2, "%s: can't resolve symbol '%s' in lib '%s'.\n", _dl_progname, symname, tpnt->libname);
+ _dl_exit(1);
+ }
+
+
+#if defined (__SUPPORT_LD_DEBUG__)
+ if (_dl_debug_bindings) {
+ _dl_dprintf(_dl_debug_file, "\nresolve function: %s", symname);
+ if (_dl_debug_detail)
+ _dl_dprintf(_dl_debug_file,
+ "\n\tpatched %x ==> %x @ %x\n",
+ *got_addr, new_addr, got_addr);
+ }
+ if (!_dl_debug_nofixups) {
+ *got_addr = new_addr;
+ }
+#else
+ *got_addr = new_addr;
+#endif
+
+ return new_addr;
+}
+
+static int
+_dl_parse(struct elf_resolve *tpnt, struct dyn_elf *scope,
+ unsigned long rel_addr, unsigned long rel_size,
+ int (*reloc_fnc) (struct elf_resolve *tpnt, struct dyn_elf *scope,
+ ELF_RELOC *rpnt, Elf32_Sym *symtab, char *strtab))
+{
+ unsigned int i;
+ char *strtab;
+ Elf32_Sym *symtab;
+ ELF_RELOC *rpnt;
+ int symtab_index;
+
+ /* Now parse the relocation information */
+ rpnt = (ELF_RELOC *)rel_addr;
+ rel_size = rel_size / sizeof(ELF_RELOC);
+
+ symtab = (Elf32_Sym *)tpnt->dynamic_info[DT_SYMTAB];
+ strtab = (char *)tpnt->dynamic_info[DT_STRTAB];
+
+ for (i = 0; i < rel_size; i++, rpnt++) {
+ int res;
+
+ symtab_index = ELF32_R_SYM(rpnt->r_info);
+ debug_sym(symtab,strtab,symtab_index);
+ debug_reloc(symtab,strtab,rpnt);
+
+ res = reloc_fnc (tpnt, scope, rpnt, symtab, strtab);
+
+ if (res==0) continue;
+
+ _dl_dprintf(2, "\n%s: ",_dl_progname);
+
+ if (symtab_index)
+ _dl_dprintf(2, "symbol '%s': ", strtab + symtab[symtab_index].st_name);
+
+ if (res <0) {
+ int reloc_type = ELF32_R_TYPE(rpnt->r_info);
+#if defined (__SUPPORT_LD_DEBUG__)
+ _dl_dprintf(2, "can't handle reloc type %s\n ", _dl_reltypes(reloc_type));
+#else
+ _dl_dprintf(2, "can't handle reloc type %x\n", reloc_type);
+#endif
+ _dl_exit(-res);
+ } else if (res >0) {
+ _dl_dprintf(2, "can't resolve symbol\n");
+ return res;
+ }
+ }
+ _dl_c6x_flush_relocs(tpnt->loadaddr.map);
+ return 0;
+}
+
+static int
+_dl_do_reloc (struct elf_resolve *tpnt,struct dyn_elf *scope,
+ ELF_RELOC *rpnt, Elf32_Sym *symtab, char *strtab)
+{
+ int reloc_type;
+ int symtab_index;
+ char *symname;
+ unsigned long *reloc_addr;
+ unsigned long symbol_addr, sym_val;
+ long reloc_addend;
+ unsigned long old_val, new_val;
+
+ reloc_addr = (unsigned long *)(intptr_t)
+ DL_RELOC_ADDR (tpnt->loadaddr, rpnt->r_offset);
+
+ reloc_type = ELF32_R_TYPE(rpnt->r_info);
+ reloc_addend = rpnt->r_addend;
+ symtab_index = ELF32_R_SYM(rpnt->r_info);
+ symbol_addr = 0;
+ symname = strtab + symtab[symtab_index].st_name;
+
+ if (ELF32_ST_BIND (symtab[symtab_index].st_info) == STB_LOCAL) {
+ symbol_addr = (unsigned long)
+ DL_RELOC_ADDR (tpnt->loadaddr, symtab[symtab_index].st_value);
+ } else {
+ symbol_addr = (unsigned long) _dl_find_hash(strtab + symtab[symtab_index].st_name,
+ scope, tpnt, elf_machine_type_class(reloc_type),
+ NULL);
+ /*
+ * We want to allow undefined references to weak symbols - this might
+ * have been intentional. We should not be linking local symbols
+ * here, so all bases should be covered.
+ */
+
+ if (!symbol_addr && ELF32_ST_BIND(symtab[symtab_index].st_info) != STB_WEAK) {
+ _dl_dprintf (2, "%s: can't resolve symbol '%s'\n",
+ _dl_progname, strtab + symtab[symtab_index].st_name);
+ _dl_exit (1);
+ }
+ }
+ old_val = *reloc_addr;
+ sym_val = symbol_addr + reloc_addend;
+
+ switch (reloc_type) {
+ case R_C6000_NONE:
+ break;
+ case R_C6000_ABS32:
+ case R_C6000_JUMP_SLOT:
+ new_val = sym_val;
+ *reloc_addr = sym_val;
+ break;
+ case R_C6000_ABS_L16:
+ new_val = (old_val & ~0x007fff80) | ((sym_val & 0xffff) << 7);
+ *reloc_addr = new_val;
+ break;
+ case R_C6000_ABS_H16:
+ new_val = (old_val & ~0x007fff80) | ((sym_val >> 9) & 0x007fff80);
+ *reloc_addr = new_val;
+ break;
+ case R_C6000_PCR_S21:
+ new_val = sym_val - (((unsigned long)reloc_addr) & ~31);
+ *reloc_addr = (old_val & ~0x0fffff80) | (((new_val >> 2) & 0x1fffff) << 7);
+ break;
+ case R_C6000_COPY:
+ if (symbol_addr) {
+#if defined (__SUPPORT_LD_DEBUG__)
+ if (_dl_debug_move)
+ _dl_dprintf(_dl_debug_file,
+ "\n%s move %d bytes from %x to %x",
+ symname, symtab[symtab_index].st_size,
+ symbol_addr, reloc_addr);
+#endif
+
+ _dl_memcpy((char *)reloc_addr,
+ (char *)symbol_addr,
+ symtab[symtab_index].st_size);
+ }
+ break;
+ default:
+ return -1; /*call _dl_exit(1) */
+ }
+#if defined (__SUPPORT_LD_DEBUG__)
+ if (_dl_debug_reloc && _dl_debug_detail && reloc_type != R_C6000_NONE) {
+ _dl_dprintf(_dl_debug_file, "\tpatched: %x ==> %x @ %x\n", old_val, new_val, reloc_addr);
+ }
+#endif
+ return 0;
+}
+
+static int
+_dl_do_lazy_reloc (struct elf_resolve *tpnt,
+ struct dyn_elf *scope attribute_unused,
+ ELF_RELOC *rpnt, ElfW(Sym) *symtab attribute_unused,
+ char *strtab attribute_unused)
+{
+ int reloc_type;
+ unsigned long *reloc_addr;
+ unsigned long old_val;
+
+ reloc_addr = (unsigned long *) DL_RELOC_ADDR(tpnt->loadaddr, rpnt->r_offset);
+ reloc_type = ELF_R_TYPE(rpnt->r_info);
+
+ old_val = *reloc_addr;
+
+ switch (reloc_type) {
+ case R_C6000_NONE:
+ break;
+ case R_C6000_JUMP_SLOT:
+ *reloc_addr = DL_RELOC_ADDR(tpnt->loadaddr, old_val);
+ break;
+ default:
+ return -1;
+ }
+
+#if defined (__SUPPORT_LD_DEBUG__)
+ if (_dl_debug_reloc && _dl_debug_detail)
+ _dl_dprintf(_dl_debug_file, "\n\tpatched: %x ==> %x @ %x\n",
+ old_val, *reloc_addr, reloc_addr);
+#endif
+
+ return 0;
+}
+
+void
+_dl_parse_lazy_relocation_information
+(struct dyn_elf *rpnt, unsigned long rel_addr, unsigned long rel_size)
+{
+ _dl_parse(rpnt->dyn, NULL, rel_addr, rel_size, _dl_do_lazy_reloc);
+}
+
+int
+_dl_parse_relocation_information
+(struct dyn_elf *rpnt, unsigned long rel_addr, unsigned long rel_size)
+{
+ return _dl_parse(rpnt->dyn, rpnt->dyn->symbol_scope, rel_addr, rel_size, _dl_do_reloc);
+}
+
+/* We don't have copy relocs. */
+int
+_dl_parse_copy_information
+(struct dyn_elf *rpnt,
+ unsigned long rel_addr,
+ unsigned long rel_size)
+{
+ return 0;
+}
+
diff --git a/ldso/ldso/c6x/resolve.S b/ldso/ldso/c6x/resolve.S
new file mode 100644
index 0000000..ce3cbe7
--- /dev/null
+++ b/ldso/ldso/c6x/resolve.S
@@ -0,0 +1,68 @@
+;;
+;; Copyright (C) 2010 Texas Instruments Incorporated
+;; Mark Salter <msalter at redhat.com>
+;;
+;; Licensed under the LGPL v2.1, see the file COPYING.LIB in this tarball.
+;;
+
+;; The function below is tail-called by resolver stubs when a
+;; lazily-bound function is called. It must preserve all
+;; registers that could be used to pass arguments to the actual
+;; function.
+
+;; _dl_linux_resolver() figures out where the jump symbol is
+;; _really_ supposed to have jumped to and returns that to us.
+;; Once we have that, we prepare to tail-call the actual
+;; function, clean up after ourselves, restoring the original
+;; arguments, then jump to the fixed up address. */
+
+; resolver stub - called from PLT to resolve target address and update GOT
+;
+; B0 : reloc offset (bytes from DT_RELPLT)
+; B1 : module pointer, loaded from GOT[1]
+; DP : caller's DP
+; A4,B4, etc: callee's arguments
+; B3 : return address
+
+ .text
+ .align 5
+ .global _dl_linux_resolve
+_dl_linux_resolve:
+ stw .d2t2 B14, *B15--[2]
+ stdw .d2t1 A15:A14, *B15--
+ stdw .d2t2 B13:B12, *B15--
+ stdw .d2t1 A13:A12, *B15--
+ stdw .d2t2 B11:B10, *B15--
+ stdw .d2t1 A11:A10, *B15--
+ stdw .d2t2 B9:B8, *B15--
+ stdw .d2t1 A9:A8, *B15--
+ stdw .d2t2 B7:B6, *B15--
+ stdw .d2t1 A7:A6, *B15--
+ stdw .d2t2 B5:B4, *B15--
+ stdw .d2t1 A5:A4, *B15--
+ stdw .d2t2 B3:B2, *B15--
+ stdw .d2t1 A3:A2, *B15--
+
+ ; call lookup routine
+ MV .S1X B1, A4 ; arg 1: module id
+|| MV .S2 B0,B4 ; arg 2: reloc offset
+ CALLP .S2 _dl_linux_resolver, B3 ; returns &f in A4
+ MV .S2X A4,B0 ; &f
+
+ lddw .d2t1 *++B15, A3:A2
+ lddw .d2t2 *++B15, B3:B2
+ lddw .d2t1 *++B15, A5:A4
+ lddw .d2t2 *++B15, B5:B4
+ lddw .d2t1 *++B15, A7:A6
+ lddw .d2t2 *++B15, B7:B6
+ lddw .d2t1 *++B15, A9:A8
+ lddw .d2t2 *++B15, B9:B8
+ lddw .d2t1 *++B15, A11:A10
+ lddw .d2t2 *++B15, B11:B10
+ lddw .d2t1 *++B15, A13:A12
+ lddw .d2t2 *++B15, B13:B12
+ lddw .d2t1 *++B15, A15:A14
+ ldw .d2t2 *++B15[2], B14
+
+ B .S2 B0 ; tail-call f
+ NOP 5
diff --git a/libc/sysdeps/linux/c6x/Makefile b/libc/sysdeps/linux/c6x/Makefile
new file mode 100644
index 0000000..633c91f
--- /dev/null
+++ b/libc/sysdeps/linux/c6x/Makefile
@@ -0,0 +1,13 @@
+# Makefile for uClibc
+#
+# Copyright (C) 2000-2005 Erik Andersen <andersen at uclibc.org>
+#
+# Licensed under the LGPL v2.1, see the file COPYING.LIB in this tarball.
+#
+
+top_srcdir=../../../../
+top_builddir=../../../../
+all: objs
+include $(top_builddir)Rules.mak
+include Makefile.arch
+include $(top_srcdir)Makerules
diff --git a/libc/sysdeps/linux/c6x/Makefile.arch b/libc/sysdeps/linux/c6x/Makefile.arch
new file mode 100644
index 0000000..3e8dace
--- /dev/null
+++ b/libc/sysdeps/linux/c6x/Makefile.arch
@@ -0,0 +1,15 @@
+# Makefile for uClibc
+#
+# Copyright (C) 2000-2005 Erik Andersen <andersen at uclibc.org>
+#
+# Licensed under the LGPL v2.1, see the file COPYING.LIB in this tarball.
+#
+
+CSRC := brk.c pread_write.c syscall.c prctl.c
+#CSRC :=
+
+SSRC := __longjmp.S bsd-_setjmp.S bsd-setjmp.S clone.S setjmp.S _vfork.S
+#SSRC :=
+
+# libc-nonshared-y += $(ARCH_OUT)/_syscall.os
+
diff --git a/libc/sysdeps/linux/c6x/__longjmp.S b/libc/sysdeps/linux/c6x/__longjmp.S
new file mode 100644
index 0000000..b9d9f9d
--- /dev/null
+++ b/libc/sysdeps/linux/c6x/__longjmp.S
@@ -0,0 +1,47 @@
+ ;
+ ; Port of uClibc for TMS320C6000 DSP architecture
+ ; Copyright (C) 2004 Texas Instruments Incorporated
+ ; Author of TMS320C6000 port: Aurelien Jacquiot
+ ;
+ ; This program is free software; you can redistribute it and/or modify it
+ ; under the terms of the GNU Library General Public License as published by
+ ; the Free Software Foundation; either version 2 of the License, or (at your
+ ; option) any later version.
+ ;
+ ; This program is distributed in the hope that it will be useful, but WITHOUT
+ ; ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ ; FITNESS FOR A PARTICULAR PURPOSE. See the GNU Library General Public License
+ ; for more details.
+ ;
+ ; You should have received a copy of the GNU Library General Public License
+ ; along with this program; if not, write to the Free Software Foundation,
+ ; Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ ;
+
+ .global __longjmp
+
+__longjmp:
+ LDW .D1T1 *+A4(48),A3 ; return address
+ MV .D2X A4,B6 ; jmp_buf pointer
+|| MV .D1 A4,A6
+|| MV .S2 B4,B2 ; val
+
+ LDW .D1T1 *+A6(0),A10
+|| LDW .D2T2 *+B6(4),B10
+|| [B2] MV .S1X B4,A4
+||[!B2] MVK .L1 1,A4 ; return val or 1
+
+ LDW .D1T1 *+A6(8),A11
+|| LDW .D2T2 *+B6(12),B11
+ LDW .D1T1 *+A6(16),A12
+|| LDW .D2T2 *+B6(20),B12
+ LDW .D1T1 *+A6(24),A13
+|| LDW .D2T2 *+B6(28),B13
+ LDW .D1T1 *+A6(32),A14
+|| LDW .D2T2 *+B6(36),B14
+ LDW .D1T1 *+A6(40),A15
+|| LDW .D2T2 *+B6(44),B15
+|| B .S2X A3
+ NOP 5
+
+libc_hidden_def(__longjmp)
diff --git a/libc/sysdeps/linux/c6x/_vfork.S b/libc/sysdeps/linux/c6x/_vfork.S
new file mode 100644
index 0000000..20cb6a5
--- /dev/null
+++ b/libc/sysdeps/linux/c6x/_vfork.S
@@ -0,0 +1,55 @@
+ ;
+ ; Port of uClibc for TMS320C6000 DSP architecture
+ ; Copyright (C) 2004 Texas Instruments Incorporated
+ ; Author of TMS320C6000 port: Aurelien Jacquiot
+ ;
+ ; This program is free software; you can redistribute it and/or modify it
+ ; under the terms of the GNU Library General Public License as published by
+ ; the Free Software Foundation; either version 2 of the License, or (at your
+ ; option) any later version.
+ ;
+ ; This program is distributed in the hope that it will be useful, but WITHOUT
+ ; ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ ; FITNESS FOR A PARTICULAR PURPOSE. See the GNU Library General Public License
+ ; for more details.
+ ;
+ ; You should have received a copy of the GNU Library General Public License
+ ; along with this program; if not, write to the Free Software Foundation,
+ ; Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ ;
+
+; .import __errno_location
+ .global __vfork
+
+__vfork:
+ MVK .S2 190,B0 ; __NR_vfork
+#ifndef _TMS320C6400_PLUS
+ MVC .S2 CSR,B2
+ CLR .S2 B2,0,0,B1
+ MVC .S2 B1,CSR
+ MVC .S2 IFR,B1
+ SET .S2 B1,6,6,B1
+ MVC .S2 B1,ISR
+ MVC .S2 B2,CSR
+ NOP
+#else
+ SWE
+#endif
+
+ MVK .S2 -4096,B4
+ CMPGTU .L2X B4,A4,B2 ; check error
+ [B2] BNOP .S2 B3,5
+
+ NEG .S1 A4,A4
+ STW .D2T1 A4,*B15--[2]
+ STW .D2T2 B3,*+B15[1]
+ CALLP .S2 __errno_location,B3
+ LDW .D2T2 *+B15[1],B3
+ LDW .D2T1 *++B15[2],A5
+ NOP 3
+ BNOP .S2 B3,3
+ STW .D1T1 A5,*A4
+ MVK .L1 -1,A4
+
+weak_alias(__vfork,vfork)
+libc_hidden_weak(vfork)
diff --git a/libc/sysdeps/linux/c6x/bits/byteswap.h b/libc/sysdeps/linux/c6x/bits/byteswap.h
new file mode 100644
index 0000000..eff26d5
--- /dev/null
+++ b/libc/sysdeps/linux/c6x/bits/byteswap.h
@@ -0,0 +1,35 @@
+/*
+ * Port of uClibc for TMS320C6000 DSP architecture
+ * Copyright (C) 2004 Texas Instruments Incorporated
+ * Author of TMS320C6000 port: Aurelien Jacquiot
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU Library General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU Library General Public License
+ * for more details.
+ *
+ * You should have received a copy of the GNU Library General Public License
+ * along with this program; if not, write to the Free Software Foundation,
+ * Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ *
+ */
+
+#ifndef _ASM_BITS_BYTESWAP_H
+#define _ASM_BITS_BYTESWAP_H 1
+
+#if !defined _BYTESWAP_H && !defined _NETINET_IN_H
+# error "Never use <bits/byteswap.h> directly; include <byteswap.h> instead."
+#endif
+
+#ifdef __GNUC__
+#define __bswap_non_constant_32(x) __builtin_bswap32(x)
+#endif
+
+#include <bits/byteswap-common.h>
+
+#endif
diff --git a/libc/sysdeps/linux/c6x/bits/elf-dsbt.h b/libc/sysdeps/linux/c6x/bits/elf-dsbt.h
new file mode 100644
index 0000000..ff8b24b
--- /dev/null
+++ b/libc/sysdeps/linux/c6x/bits/elf-dsbt.h
@@ -0,0 +1,123 @@
+/* Copyright (C) 2010 Texas Instruments Incorporated
+
+Borrowed heavily from frv arch:
+Copyright 2003, 2004 Free Software Foundation, Inc.
+This file is part of the GNU C Library.
+
+The GNU C Library is free software; you can redistribute it and/or
+modify it under the terms of the GNU Lesser General Public License as
+published by the Free Software Foundation; either version 2.1 of the
+License, or (at your option) any later version.
+
+In addition to the permissions in the GNU Lesser General Public
+License, the Free Software Foundation gives you unlimited
+permission to link the compiled version of this file with other
+programs, and to distribute those programs without any restriction
+coming from the use of this file. (The GNU Lesser General Public
+License restrictions do apply in other respects; for example, they
+cover modification of the file, and distribution when not linked
+into another program.)
+
+The GNU C Library is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+Library General Public License for more details.
+
+You should have received a copy of the GNU Lesser General Public
+License along with the GNU C Library; see the file COPYING.LIB. If
+not, write to the Free Software Foundation, Inc., 675 Mass Ave,
+Cambridge, MA 02139, USA. */
+
+#ifndef _BITS_ELF_DSBT_H
+#define _BITS_ELF_DSBT_H
+
+/* These data structures are described in the DSBT ABI.
+ The kernel passes a process a memory map of logical
+ load segments. For PIC code to work, all code segments
+ must be combined into a single mapping while maintaining
+ their relationship to one another. The same is true for
+ RW data segments.
+
+ Furthermore,
+ segment there is an elf32_dsbt_loadseg entry. A pointer to an
+ elf32_dsbt_loadmap is passed in GR8 at start-up, and a pointer to
+ an additional such map is passed in GR9 for the interpreter, when
+ there is one. */
+
+#include <elf.h>
+
+/* This data structure represents a PT_LOAD segment. */
+struct elf32_dsbt_loadseg
+{
+ /* Core address to which the segment is mapped. */
+ Elf32_Addr addr;
+ /* VMA recorded in the program header. */
+ Elf32_Addr p_vaddr;
+ /* Size of this segment in memory. */
+ Elf32_Word p_memsz;
+};
+
+struct elf32_dsbt_loadmap {
+ /* Protocol version number, must be zero. */
+ Elf32_Word version;
+
+ /* Pointer to DSBT */
+ unsigned *dsbt_table;
+ unsigned dsbt_size;
+ unsigned dsbt_index;
+
+ /* number of segments */
+ Elf32_Word nsegs;
+
+ /* The actual memory map. */
+ struct elf32_dsbt_loadseg segs[0];
+};
+
+struct elf32_dsbt_loadaddr {
+ struct elf32_dsbt_loadmap *map;
+};
+
+
+/* Map a pointer's VMA to its corresponding address according to the
+ load map. */
+static __always_inline void *
+__reloc_pointer (void *p,
+ const struct elf32_dsbt_loadmap *map)
+{
+ int c;
+
+#if 0
+ if (map->version != 0)
+ /* Crash. */
+ ((void(*)())0)();
+#endif
+
+ /* No special provision is made for NULL. We don't want NULL
+ addresses to go through relocation, so they shouldn't be in
+ .rofixup sections, and, if they're present in dynamic
+ relocations, they shall be mapped to the NULL address without
+ undergoing relocations. */
+
+ for (c = 0; c < map->nsegs; c++)
+ {
+ unsigned long offset = p - (void*)map->segs[c].p_vaddr;
+ /* We only check for one-past-the-end for the second segment,
+ assumed to be the data segment, because other cases are
+ ambiguous in the absence of padding between segments, and
+ rofixup already serves as padding between text and data.
+ Unfortunately, unless we special-case the second segment,
+ we fail to relocate the _end symbol. */
+ if (offset < map->segs[c].p_memsz
+ || (offset == map->segs[c].p_memsz && c == 1))
+ return (char*)map->segs[c].addr + offset;
+ }
+
+ /* We might want to crash instead. */
+ return (void*)-1;
+}
+
+# define __RELOC_POINTER(ptr, loadaddr) \
+ (__reloc_pointer ((void*)(ptr), \
+ (loadaddr).map))
+
+#endif /* _BITS_ELF_DSBT_H */
diff --git a/libc/sysdeps/linux/c6x/bits/endian.h b/libc/sysdeps/linux/c6x/bits/endian.h
new file mode 100644
index 0000000..7297f9e
--- /dev/null
+++ b/libc/sysdeps/linux/c6x/bits/endian.h
@@ -0,0 +1,11 @@
+/* c6x is little-endian by default. */
+
+#ifndef _ENDIAN_H
+# error "Never use <bits/endian.h> directly; include <endian.h> instead."
+#endif
+
+#ifdef _BIG_ENDIAN
+#define __BYTE_ORDER __BIG_ENDIAN
+#else
+#define __BYTE_ORDER __LITTLE_ENDIAN
+#endif
diff --git a/libc/sysdeps/linux/c6x/bits/fcntl.h b/libc/sysdeps/linux/c6x/bits/fcntl.h
new file mode 100644
index 0000000..6c0d564
--- /dev/null
+++ b/libc/sysdeps/linux/c6x/bits/fcntl.h
@@ -0,0 +1,235 @@
+/* O_*, F_*, FD_* bit values for Linux.
+ Copyright (C) 2000 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library; if not, write to the Free
+ Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+ 02111-1307 USA. */
+
+#ifndef _FCNTL_H
+# error "Never use <bits/fcntl.h> directly; include <fcntl.h> instead."
+#endif
+
+
+#include <sys/types.h>
+#ifdef __USE_GNU
+# include <bits/uio.h>
+#endif
+
+/* open/fcntl - O_SYNC is only implemented on blocks devices and on files
+ located on an ext2 file system */
+#define O_ACCMODE 0003
+#define O_RDONLY 00
+#define O_WRONLY 01
+#define O_RDWR 02
+#define O_CREAT 0100 /* not fcntl */
+#define O_EXCL 0200 /* not fcntl */
+#define O_NOCTTY 0400 /* not fcntl */
+#define O_TRUNC 01000 /* not fcntl */
+#define O_APPEND 02000
+#define O_NONBLOCK 04000
+#define O_NDELAY O_NONBLOCK
+#define O_SYNC 010000
+#define O_FSYNC O_SYNC
+#define O_ASYNC 020000
+#define O_DIRECT 040000
+
+#ifdef __USE_GNU
+# define O_LARGEFILE 0100000
+# define O_DIRECTORY 0200000 /* Must be a directory. */
+# define O_NOFOLLOW 0400000 /* don't follow links */
+# define O_NOATIME 01000000
+# define O_CLOEXEC 02000000/* set close on exec */
+#endif
+
+/* For now Linux has synchronisity options for data and read operations.
+ We define the symbols here but let them do the same as O_SYNC since
+ this is a superset. */
+#if defined __USE_POSIX199309 || defined __USE_UNIX98
+# define O_DSYNC O_SYNC /* Synchronize data. */
+# define O_RSYNC O_SYNC /* Synchronize read operations. */
+#endif
+
+#ifdef __USE_LARGEFILE64
+# define O_LARGEFILE 0100000
+#endif
+
+/* Values for the second argument to `fcntl'. */
+#define F_DUPFD 0 /* Duplicate file descriptor. */
+#define F_GETFD 1 /* Get file descriptor flags. */
+#define F_SETFD 2 /* Set file descriptor flags. */
+#define F_GETFL 3 /* Get file status flags. */
+#define F_SETFL 4 /* Set file status flags. */
+#ifndef __USE_FILE_OFFSET64
+# define F_GETLK 5 /* Get record locking info. */
+# define F_SETLK 6 /* Set record locking info (non-blocking). */
+# define F_SETLKW 7 /* Set record locking info (blocking). */
+#else
+# define F_GETLK F_GETLK64 /* Get record locking info. */
+# define F_SETLK F_SETLK64 /* Set record locking info (non-blocking).*/
+# define F_SETLKW F_SETLKW64 /* Set record locking info (blocking). */
+#endif
+#define F_GETLK64 12 /* Get record locking info. */
+#define F_SETLK64 13 /* Set record locking info (non-blocking). */
+#define F_SETLKW64 14 /* Set record locking info (blocking). */
+
+#if defined __USE_BSD || defined __USE_XOPEN2K
+# define F_SETOWN 8 /* Get owner of socket (receiver of SIGIO). */
+# define F_GETOWN 9 /* Set owner of socket (receiver of SIGIO). */
+#endif
+
+#ifdef __USE_GNU
+# define F_SETSIG 10 /* Set number of signal to be sent. */
+# define F_GETSIG 11 /* Get number of signal to be sent. */
+#endif
+
+#ifdef __USE_GNU
+# define F_SETLEASE 1024 /* Set a lease. */
+# define F_GETLEASE 1025 /* Enquire what lease is active. */
+# define F_NOTIFY 1026 /* Request notfications on a directory. */
+#endif
+
+/* For F_[GET|SET]FL. */
+#define FD_CLOEXEC 1 /* actually anything with low bit set goes */
+
+/* For posix fcntl() and `l_type' field of a `struct flock' for lockf(). */
+#define F_RDLCK 0 /* Read lock. */
+#define F_WRLCK 1 /* Write lock. */
+#define F_UNLCK 2 /* Remove lock. */
+
+/* For old implementation of bsd flock(). */
+#define F_EXLCK 4 /* or 3 */
+#define F_SHLCK 8 /* or 4 */
+
+#ifdef __USE_BSD
+/* Operations for bsd flock(), also used by the kernel implementation. */
+# define LOCK_SH 1 /* shared lock */
+# define LOCK_EX 2 /* exclusive lock */
+# define LOCK_NB 4 /* or'd with one of the above to prevent
+ blocking */
+# define LOCK_UN 8 /* remove lock */
+#endif
+
+#ifdef __USE_GNU
+# define LOCK_MAND 32 /* This is a mandatory flock: */
+# define LOCK_READ 64 /* ... which allows concurrent read operations. */
+# define LOCK_WRITE 128 /* ... which allows concurrent write operations. */
+# define LOCK_RW 192 /* ... Which allows concurrent read & write operations. */
+#endif
+
+#ifdef __USE_GNU
+/* Types of directory notifications that may be requested with F_NOTIFY. */
+# define DN_ACCESS 0x00000001 /* File accessed. */
+# define DN_MODIFY 0x00000002 /* File modified. */
+# define DN_CREATE 0x00000004 /* File created. */
+# define DN_DELETE 0x00000008 /* File removed. */
+# define DN_RENAME 0x00000010 /* File renamed. */
+# define DN_ATTRIB 0x00000020 /* File changed attibutes. */
+# define DN_MULTISHOT 0x80000000 /* Don't remove notifier. */
+#endif
+
+struct flock
+ {
+ short int l_type; /* Type of lock: F_RDLCK, F_WRLCK, or F_UNLCK. */
+ short int l_whence; /* Where `l_start' is relative to (like `lseek'). */
+#ifndef __USE_FILE_OFFSET64
+ __off_t l_start; /* Offset where the lock begins. */
+ __off_t l_len; /* Size of the locked area; zero means until EOF. */
+#else
+ __off64_t l_start; /* Offset where the lock begins. */
+ __off64_t l_len; /* Size of the locked area; zero means until EOF. */
+#endif
+ __pid_t l_pid; /* Process holding the lock. */
+ };
+
+#ifdef __USE_LARGEFILE64
+struct flock64
+ {
+ short int l_type; /* Type of lock: F_RDLCK, F_WRLCK, or F_UNLCK. */
+ short int l_whence; /* Where `l_start' is relative to (like `lseek'). */
+ __off64_t l_start; /* Offset where the lock begins. */
+ __off64_t l_len; /* Size of the locked area; zero means until EOF. */
+ __pid_t l_pid; /* Process holding the lock. */
+ };
+#endif
+
+/* Define some more compatibility macros to be backward compatible with
+ BSD systems which did not managed to hide these kernel macros. */
+#ifdef __USE_BSD
+# define FAPPEND O_APPEND
+# define FFSYNC O_FSYNC
+# define FASYNC O_ASYNC
+# define FNONBLOCK O_NONBLOCK
+# define FNDELAY O_NDELAY
+#endif /* Use BSD. */
+
+/* Advise to `posix_fadvise'. */
+#ifdef __USE_XOPEN2K
+# define POSIX_FADV_NORMAL 0 /* No further special treatment. */
+# define POSIX_FADV_RANDOM 1 /* Expect random page references. */
+# define POSIX_FADV_SEQUENTIAL 2 /* Expect sequential page references. */
+# define POSIX_FADV_WILLNEED 3 /* Will need these pages. */
+# define POSIX_FADV_DONTNEED 4 /* Don't need these pages. */
+# define POSIX_FADV_NOREUSE 5 /* Data will be accessed once. */
+#endif
+
+#if defined __USE_GNU && defined __UCLIBC_LINUX_SPECIFIC__
+/* Flags for SYNC_FILE_RANGE. */
+# define SYNC_FILE_RANGE_WAIT_BEFORE 1 /* Wait upon writeout of all pages
+ in the range before performing the
+ write. */
+# define SYNC_FILE_RANGE_WRITE 2 /* Initiate writeout of all those
+ dirty pages in the range which are
+ not presently under writeback. */
+# define SYNC_FILE_RANGE_WAIT_AFTER 4 /* Wait upon writeout of all pages in
+ the range after performing the
+ write. */
+
+/* Flags for SPLICE and VMSPLICE. */
+# define SPLICE_F_MOVE 1 /* Move pages instead of copying. */
+# define SPLICE_F_NONBLOCK 2 /* Don't block on the pipe splicing
+ (but we may still block on the fd
+ we splice from/to). */
+# define SPLICE_F_MORE 4 /* Expect more data. */
+# define SPLICE_F_GIFT 8 /* Pages passed in are a gift. */
+#endif
+
+__BEGIN_DECLS
+
+#if defined __USE_GNU && defined __UCLIBC_LINUX_SPECIFIC__
+
+/* Provide kernel hint to read ahead. */
+extern ssize_t readahead (int __fd, __off64_t __offset, size_t __count)
+ __THROW;
+
+
+/* Selective file content synch'ing. */
+extern int sync_file_range (int __fd, __off64_t __from, __off64_t __to,
+ unsigned int __flags);
+
+/* Splice address range into a pipe. */
+extern ssize_t vmsplice (int __fdout, const struct iovec *__iov,
+ size_t __count, unsigned int __flags);
+
+/* Splice two files together. */
+extern ssize_t splice (int __fdin, __off64_t *__offin, int __fdout,
+ __off64_t *__offout, size_t __len,
+ unsigned int __flags);
+
+/* In-kernel implementation of tee for pipe buffers. */
+extern ssize_t tee (int __fdin, int __fdout, size_t __len,
+ unsigned int __flags);
+
+#endif
+__END_DECLS
diff --git a/libc/sysdeps/linux/c6x/bits/kernel_stat.h b/libc/sysdeps/linux/c6x/bits/kernel_stat.h
new file mode 100644
index 0000000..9c0bfa6
--- /dev/null
+++ b/libc/sysdeps/linux/c6x/bits/kernel_stat.h
@@ -0,0 +1,52 @@
+#ifndef _BITS_STAT_STRUCT_H
+#define _BITS_STAT_STRUCT_H
+
+/* This file provides whatever this particular arch's kernel thinks
+ * struct kernel_stat should look like... It turns out each arch has a
+ * different opinion on the subject... */
+
+struct kernel_stat {
+ unsigned short st_dev;
+ unsigned short __pad1;
+ unsigned long st_ino;
+ unsigned short st_mode;
+ unsigned short st_nlink;
+ unsigned short st_uid;
+ unsigned short st_gid;
+ unsigned short st_rdev;
+ unsigned short __pad2;
+ unsigned long st_size;
+ unsigned long st_blksize;
+ unsigned long st_blocks;
+ struct timespec st_atim;
+ struct timespec st_mtim;
+ struct timespec st_ctim;
+ unsigned long __unused4;
+ unsigned long __unused5;
+};
+
+struct kernel_stat64 {
+ unsigned char __pad0[6];
+ unsigned short st_dev;
+ unsigned char __pad1[2];
+#define _HAVE_STAT64___ST_INO
+ unsigned long __st_ino;
+ unsigned int st_mode;
+ unsigned int st_nlink;
+ unsigned long st_uid;
+ unsigned long st_gid;
+ unsigned char __pad2[6];
+ unsigned short st_rdev;
+ unsigned char __pad3[2];
+ __off64_t st_size;
+ unsigned long st_blksize;
+ unsigned long __pad4; /* future possible st_blocks high bits */
+ unsigned long st_blocks; /* Number 512-byte blocks allocated. */
+ struct timespec st_atim;
+ struct timespec st_mtim;
+ struct timespec st_ctim;
+ __off64_t st_ino;
+};
+
+#endif /* _BITS_STAT_STRUCT_H */
+
diff --git a/libc/sysdeps/linux/c6x/bits/kernel_types.h b/libc/sysdeps/linux/c6x/bits/kernel_types.h
new file mode 100644
index 0000000..5dbd2c2
--- /dev/null
+++ b/libc/sysdeps/linux/c6x/bits/kernel_types.h
@@ -0,0 +1,46 @@
+/* Note that we use the exact same include guard #define names
+ * as asm/posix_types.h. This will avoid gratuitous conflicts
+ * with the posix_types.h kernel header, and will ensure that
+ * our private content, and not the kernel header, will win.
+ * -Erik
+ */
+#ifndef __ASM_GENERIC_POSIX_TYPES_H
+#define __ASM_GENERIC_POSIX_TYPES_H
+
+typedef unsigned short __kernel_dev_t;
+typedef unsigned long __kernel_ino_t;
+typedef unsigned short __kernel_mode_t;
+typedef unsigned short __kernel_nlink_t;
+typedef long __kernel_off_t;
+typedef int __kernel_pid_t;
+typedef unsigned short __kernel_ipc_pid_t;
+typedef unsigned short __kernel_uid_t;
+typedef unsigned short __kernel_gid_t;
+typedef unsigned int __kernel_size_t;
+typedef int __kernel_ssize_t;
+typedef int __kernel_ptrdiff_t;
+typedef long __kernel_time_t;
+typedef long __kernel_suseconds_t;
+typedef long __kernel_clock_t;
+typedef int __kernel_timer_t;
+typedef int __kernel_clockid_t;
+typedef int __kernel_daddr_t;
+typedef char * __kernel_caddr_t;
+typedef unsigned short __kernel_uid16_t;
+typedef unsigned short __kernel_gid16_t;
+typedef unsigned int __kernel_uid32_t;
+typedef unsigned int __kernel_gid32_t;
+typedef unsigned short __kernel_old_uid_t;
+typedef unsigned short __kernel_old_gid_t;
+typedef unsigned short __kernel_old_dev_t;
+typedef long long __kernel_loff_t;
+
+typedef struct {
+#ifdef __USE_ALL
+ int val[2];
+#else
+ int __val[2];
+#endif
+} __kernel_fsid_t;
+
+#endif /* __ASM_GENERIC_POSIX_TYPES_H */
diff --git a/libc/sysdeps/linux/c6x/bits/mathdef.h b/libc/sysdeps/linux/c6x/bits/mathdef.h
new file mode 100644
index 0000000..df12adf
--- /dev/null
+++ b/libc/sysdeps/linux/c6x/bits/mathdef.h
@@ -0,0 +1,39 @@
+/* Copyright (C) 1997, 1998, 1999, 2000 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library; if not, write to the Free
+ Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+ 02111-1307 USA. */
+
+#if !defined _MATH_H && !defined _COMPLEX_H
+# error "Never use <bits/mathdef.h> directly; include <math.h> instead"
+#endif
+
+#if defined __USE_ISOC99 && defined _MATH_H && !defined _MATH_H_MATHDEF
+# define _MATH_H_MATHDEF 1
+
+typedef float float_t;
+typedef double double_t;
+
+/* The values returned by `ilogb' for 0 and NaN respectively. */
+# define FP_ILOGB0 (-2147483647 - 1)
+# define FP_ILOGBNAN (2147483647)
+
+#endif /* ISO C99 */
+
+#ifndef __NO_LONG_DOUBLE_MATH
+/* Signal that we do not really have a `long double'. This disables the
+ declaration of all the `long double' function variants. */
+# define __NO_LONG_DOUBLE_MATH 1
+#endif
diff --git a/libc/sysdeps/linux/c6x/bits/nan.h b/libc/sysdeps/linux/c6x/bits/nan.h
new file mode 100644
index 0000000..85225da
--- /dev/null
+++ b/libc/sysdeps/linux/c6x/bits/nan.h
@@ -0,0 +1,57 @@
+/* `NAN' constant for IEEE 754 machines.
+ Copyright (C) 1992,1996,1997,1999,2004,2006 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library; if not, write to the Free
+ Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+ 02111-1307 USA. */
+
+#ifndef _MATH_H
+# error "Never use <bits/nan.h> directly; include <math.h> instead."
+#endif
+
+/* IEEE Not A Number. */
+
+/*
+ * Copied from the common code and modified for TI tool wrapper.
+ * Copyright (C) 2010 Texas Instruments Incorporated
+ */
+
+#if __GNUC_PREREQ(3,3)
+
+# define NAN (__builtin_nanf (""))
+
+#elif defined __GNUC__ && ! defined __TI_TOOL_WRAPPER__
+
+# define NAN \
+ (__extension__ \
+ ((union { unsigned __l __attribute__ ((__mode__ (__SI__))); float __d; }) \
+ { __l: 0x7fc00000UL }).__d)
+
+#else
+
+# include <endian.h>
+
+# if __BYTE_ORDER == __BIG_ENDIAN
+# define __nan_bytes { 0x7f, 0xc0, 0, 0 }
+# endif
+# if __BYTE_ORDER == __LITTLE_ENDIAN
+# define __nan_bytes { 0, 0, 0xc0, 0x7f }
+# endif
+
+static union { unsigned char __c[4]; float __d; } __nan_union
+ = { __nan_bytes };
+# define NAN (__nan_union.__d)
+
+#endif /* GCC. */
diff --git a/libc/sysdeps/linux/c6x/bits/poll.h b/libc/sysdeps/linux/c6x/bits/poll.h
new file mode 100644
index 0000000..f7a7393
--- /dev/null
+++ b/libc/sysdeps/linux/c6x/bits/poll.h
@@ -0,0 +1,43 @@
+/* Copyright (C) 1997, 2001 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library; if not, write to the Free
+ Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+ 02111-1307 USA. */
+
+#ifndef _SYS_POLL_H
+# error "Never use <bits/poll.h> directly; include <sys/poll.h> instead."
+#endif
+
+/* Event types that can be polled for. These bits may be set in `events'
+ to indicate the interesting event types; they will appear in `revents'
+ to indicate the status of the file descriptor. */
+#define POLLIN 0x001 /* There is data to read. */
+#define POLLPRI 0x002 /* There is urgent data to read. */
+#define POLLOUT 0x004 /* Writing now will not block. */
+
+#ifdef __USE_XOPEN
+/* These values are defined in XPG4.2. */
+# define POLLRDNORM 0x040 /* Normal data may be read. */
+# define POLLRDBAND 0x080 /* Priority data may be read. */
+# define POLLWRNORM POLLOUT /* Writing now will not block. */
+# define POLLWRBAND 0x100 /* Priority data may be written. */
+#endif
+
+/* Event types always implicitly polled for. These bits need not be set in
+ `events', but they will appear in `revents' to indicate the status of
+ the file descriptor. */
+#define POLLERR 0x008 /* Error condition. */
+#define POLLHUP 0x010 /* Hung up. */
+#define POLLNVAL 0x020 /* Invalid polling request. */
diff --git a/libc/sysdeps/linux/c6x/bits/resource.h b/libc/sysdeps/linux/c6x/bits/resource.h
new file mode 100644
index 0000000..57d1782
--- /dev/null
+++ b/libc/sysdeps/linux/c6x/bits/resource.h
@@ -0,0 +1,209 @@
+/* Bit values & structures for resource limits. Linux/m68k version.
+ Copyright (C) 1994,1996,1997,1998,1999,2000,2001 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library; if not, write to the Free
+ Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+ 02111-1307 USA. */
+
+#ifndef _SYS_RESOURCE_H
+# error "Never use <bits/resource.h> directly; include <sys/resource.h> instead."
+#endif
+
+#include <bits/types.h>
+
+/* Transmute defines to enumerations. The macro re-definitions are
+ necessary because some programs want to test for operating system
+ features with #ifdef RUSAGE_SELF. In ISO C the reflexive
+ definition is a no-op. */
+
+/* Kinds of resource limit. */
+enum __rlimit_resource
+{
+ /* Per-process CPU limit, in seconds. */
+ RLIMIT_CPU = 0,
+#define RLIMIT_CPU RLIMIT_CPU
+
+ /* Largest file that can be created, in bytes. */
+ RLIMIT_FSIZE = 1,
+#define RLIMIT_FSIZE RLIMIT_FSIZE
+
+ /* Maximum size of data segment, in bytes. */
+ RLIMIT_DATA = 2,
+#define RLIMIT_DATA RLIMIT_DATA
+
+ /* Maximum size of stack segment, in bytes. */
+ RLIMIT_STACK = 3,
+#define RLIMIT_STACK RLIMIT_STACK
+
+ /* Largest core file that can be created, in bytes. */
+ RLIMIT_CORE = 4,
+#define RLIMIT_CORE RLIMIT_CORE
+
+ /* Largest resident set size, in bytes.
+ This affects swapping; processes that are exceeding their
+ resident set size will be more likely to have physical memory
+ taken from them. */
+ RLIMIT_RSS = 5,
+#define RLIMIT_RSS RLIMIT_RSS
+
+ /* Number of open files. */
+ RLIMIT_NOFILE = 7,
+ RLIMIT_OFILE = RLIMIT_NOFILE, /* BSD name for same. */
+#define RLIMIT_NOFILE RLIMIT_NOFILE
+#define RLIMIT_OFILE RLIMIT_OFILE
+
+ /* Address space limit. */
+ RLIMIT_AS = 9,
+#define RLIMIT_AS RLIMIT_AS
+
+ /* Number of processes. */
+ RLIMIT_NPROC = 6,
+#define RLIMIT_NPROC RLIMIT_NPROC
+
+ /* Locked-in-memory address space. */
+ RLIMIT_MEMLOCK = 8,
+#define RLIMIT_MEMLOCK RLIMIT_MEMLOCK
+
+ /* Maximum number of file locks. */
+ RLIMIT_LOCKS = 10,
+#define RLIMIT_LOCKS RLIMIT_LOCKS
+
+ RLIMIT_NLIMITS = 11,
+ RLIM_NLIMITS = RLIMIT_NLIMITS
+#define RLIMIT_NLIMITS RLIMIT_NLIMITS
+#define RLIM_NLIMITS RLIM_NLIMITS
+};
+
+/* Value to indicate that there is no limit. */
+#ifndef __USE_FILE_OFFSET64
+# define RLIM_INFINITY ((unsigned long)(~0UL))
+#else
+# define RLIM_INFINITY 0xffffffffffffffffuLL
+#endif
+
+#ifdef __USE_LARGEFILE64
+# define RLIM64_INFINITY 0xffffffffffffffffuLL
+#endif
+
+/* We can represent all limits. */
+#define RLIM_SAVED_MAX RLIM_INFINITY
+#define RLIM_SAVED_CUR RLIM_INFINITY
+
+
+/* Type for resource quantity measurement. */
+#ifndef __USE_FILE_OFFSET64
+typedef __rlim_t rlim_t;
+#else
+typedef __rlim64_t rlim_t;
+#endif
+#ifdef __USE_LARGEFILE64
+typedef __rlim64_t rlim64_t;
+#endif
+
+struct rlimit
+ {
+ /* The current (soft) limit. */
+ rlim_t rlim_cur;
+ /* The hard limit. */
+ rlim_t rlim_max;
+ };
+
+#ifdef __USE_LARGEFILE64
+struct rlimit64
+ {
+ /* The current (soft) limit. */
+ rlim64_t rlim_cur;
+ /* The hard limit. */
+ rlim64_t rlim_max;
+ };
+#endif
+
+/* Whose usage statistics do you want? */
+enum __rusage_who
+{
+ /* The calling process. */
+ RUSAGE_SELF = 0,
+#define RUSAGE_SELF RUSAGE_SELF
+
+ /* All of its terminated child processes. */
+ RUSAGE_CHILDREN = -1,
+#define RUSAGE_CHILDREN RUSAGE_CHILDREN
+
+ /* Both. */
+ RUSAGE_BOTH = -2
+#define RUSAGE_BOTH RUSAGE_BOTH
+};
+
+#define __need_timeval
+#include <bits/time.h> /* For `struct timeval'. */
+
+/* Structure which says how much of each resource has been used. */
+struct rusage
+ {
+ /* Total amount of user time used. */
+ struct timeval ru_utime;
+ /* Total amount of system time used. */
+ struct timeval ru_stime;
+ /* Maximum resident set size (in kilobytes). */
+ long ru_maxrss;
+ /* Amount of sharing of text segment memory
+ with other processes (kilobyte-seconds). */
+ long ru_ixrss;
+ /* Amount of data segment memory used (kilobyte-seconds). */
+ long ru_idrss;
+ /* Amount of stack memory used (kilobyte-seconds). */
+ long ru_isrss;
+ /* Number of soft page faults (i.e. those serviced by reclaiming
+ a page from the list of pages awaiting reallocation. */
+ long ru_minflt;
+ /* Number of hard page faults (i.e. those that required I/O). */
+ long ru_majflt;
+ /* Number of times a process was swapped out of physical memory. */
+ long ru_nswap;
+ /* Number of input operations via the file system. Note: This
+ and `ru_oublock' do not include operations with the cache. */
+ long ru_inblock;
+ /* Number of output operations via the file system. */
+ long ru_oublock;
+ /* Number of IPC messages sent. */
+ long ru_msgsnd;
+ /* Number of IPC messages received. */
+ long ru_msgrcv;
+ /* Number of signals delivered. */
+ long ru_nsignals;
+ /* Number of voluntary context switches, i.e. because the process
+ gave up the process before it had to (usually to wait for some
+ resource to be available). */
+ long ru_nvcsw;
+ /* Number of involuntary context switches, i.e. a higher priority process
+ became runnable or the current process used up its time slice. */
+ long ru_nivcsw;
+ };
+
+/* Priority limits. */
+#define PRIO_MIN -20 /* Minimum priority a process can have. */
+#define PRIO_MAX 20 /* Maximum priority a process can have. */
+
+/* The type of the WHICH argument to `getpriority' and `setpriority',
+ indicating what flavor of entity the WHO argument specifies. */
+enum __priority_which
+{
+ PRIO_PROCESS = 0, /* WHO is a process ID. */
+#define PRIO_PROCESS PRIO_PROCESS
+ PRIO_PGRP = 1, /* WHO is a process group ID. */
+#define PRIO_PGRP PRIO_PGRP
+ PRIO_USER = 2 /* WHO is a user ID. */
+#define PRIO_USER PRIO_USER
+};
diff --git a/libc/sysdeps/linux/c6x/bits/setjmp.h b/libc/sysdeps/linux/c6x/bits/setjmp.h
new file mode 100644
index 0000000..259e23b
--- /dev/null
+++ b/libc/sysdeps/linux/c6x/bits/setjmp.h
@@ -0,0 +1,39 @@
+/*
+ * Port of uClibc for TMS320C6000 DSP architecture
+ * Copyright (C) 2004 Texas Instruments Incorporated
+ * Author of TMS320C6000 port: Aurelien Jacquiot
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU Library General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU Library General Public License
+ * for more details.
+ *
+ * You should have received a copy of the GNU Library General Public License
+ * along with this program; if not, write to the Free Software Foundation,
+ * Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ *
+ */
+
+#ifndef _SETJMP_H
+# error "Never include <bits/setjmp.h> directly; use <setjmp.h> instead."
+#endif
+
+typedef struct {
+ unsigned long __regs[12]; /* save A10,B10... A15,B15*/
+ unsigned long __pc; /* the return address */
+} __jmp_buf[1];
+
+/* the stack pointer (B15) */
+#define JP_SP 11
+
+/* Test if longjmp to JMPBUF would unwind the frame
+ containing a local variable at ADDRESS. */
+#define _JMPBUF_UNWINDS(jmpbuf, address) \
+ ((void *) (address) < (void *) (jmpbuf)->__regs[JP_SP])
+
+
diff --git a/libc/sysdeps/linux/c6x/bits/sigcontextinfo.h b/libc/sysdeps/linux/c6x/bits/sigcontextinfo.h
new file mode 100644
index 0000000..b7e08cf
--- /dev/null
+++ b/libc/sysdeps/linux/c6x/bits/sigcontextinfo.h
@@ -0,0 +1,26 @@
+/* Copyright (C) 1998, 1999, 2001 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+ Contributed by Andreas Schwab <schwab at issan.informatik.uni-dortmund.de>, 1998.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library; if not, write to the Free
+ Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+ 02111-1307 USA. */
+
+#define SIGCONTEXT int _code, struct sigcontext *
+#define SIGCONTEXT_EXTRA_ARGS _code,
+#define GET_PC(ctx) ((void *) (ctx)->sc_pc)
+#define GET_FRAME(ctx) ((void *) __builtin_frame_address (1))
+#define GET_STACK(ctx) ((void *) (ctx)->sc_usp)
+#define CALL_SIGHANDLER(handler, signo, ctx) \
+ (handler)((signo), SIGCONTEXT_EXTRA_ARGS (ctx))
diff --git a/libc/sysdeps/linux/c6x/bits/stackinfo.h b/libc/sysdeps/linux/c6x/bits/stackinfo.h
new file mode 100644
index 0000000..9dbf06a
--- /dev/null
+++ b/libc/sysdeps/linux/c6x/bits/stackinfo.h
@@ -0,0 +1,28 @@
+/* Copyright (C) 1999 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library; if not, write to the Free
+ Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+ 02111-1307 USA. */
+
+/* This file contains a bit of information about the stack allocation
+ of the processor. */
+
+#ifndef _STACKINFO_H
+#define _STACKINFO_H 1
+
+/* On c6x the stack grows down. */
+#define _STACK_GROWS_DOWN 1
+
+#endif /* stackinfo.h */
diff --git a/libc/sysdeps/linux/c6x/bits/stat.h b/libc/sysdeps/linux/c6x/bits/stat.h
new file mode 100644
index 0000000..eba3124
--- /dev/null
+++ b/libc/sysdeps/linux/c6x/bits/stat.h
@@ -0,0 +1,174 @@
+/* Copyright (C) 1992,95,96,97,98,99,2000,2001 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library; if not, write to the Free
+ Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+ 02111-1307 USA. */
+
+#ifndef _SYS_STAT_H
+# error "Never include <bits/stat.h> directly; use <sys/stat.h> instead."
+#endif
+
+/* Versions of the `struct stat' data structure. */
+#define _STAT_VER_LINUX_OLD 1
+#define _STAT_VER_KERNEL 1
+#define _STAT_VER_SVR4 2
+#define _STAT_VER_LINUX 3
+#define _STAT_VER _STAT_VER_LINUX /* The one defined below. */
+
+/* Versions of the `xmknod' interface. */
+#define _MKNOD_VER_LINUX 1
+#define _MKNOD_VER_SVR4 2
+#define _MKNOD_VER _MKNOD_VER_LINUX /* The bits defined below. */
+
+
+struct stat
+ {
+ __dev_t st_dev; /* Device. */
+ unsigned short int __pad1;
+#ifndef __USE_FILE_OFFSET64
+ __ino_t st_ino; /* File serial number. */
+#else
+ __ino_t __st_ino; /* 32bit file serial number. */
+#endif
+ __mode_t st_mode; /* File mode. */
+ __nlink_t st_nlink; /* Link count. */
+ __uid_t st_uid; /* User ID of the file's owner. */
+ __gid_t st_gid; /* Group ID of the file's group.*/
+ __dev_t st_rdev; /* Device number, if device. */
+ unsigned short int __pad2;
+#ifndef __USE_FILE_OFFSET64
+ __off_t st_size; /* Size of file, in bytes. */
+#else
+ __off64_t st_size; /* Size of file, in bytes. */
+#endif
+ __blksize_t st_blksize; /* Optimal block size for I/O. */
+
+#ifndef __USE_FILE_OFFSET64
+ __blkcnt_t st_blocks; /* Number 512-byte blocks allocated. */
+#else
+ __blkcnt64_t st_blocks; /* Number 512-byte blocks allocated. */
+#endif
+#ifdef __USE_MISC
+ /* Nanosecond resolution timestamps are stored in a format
+ equivalent to 'struct timespec'. This is the type used
+ whenever possible but the Unix namespace rules do not allow the
+ identifier 'timespec' to appear in the <sys/stat.h> header.
+ Therefore we have to handle the use of this header in strictly
+ standard-compliant sources special. */
+ struct timespec st_atim; /* Time of last access. */
+ struct timespec st_mtim; /* Time of last modification. */
+ struct timespec st_ctim; /* Time of last status change. */
+# define st_atime st_atim.tv_sec /* Backward compatibility. */
+# define st_mtime st_mtim.tv_sec
+# define st_ctime st_ctim.tv_sec
+#else
+ __time_t st_atime; /* Time of last access. */
+ unsigned long int st_atimensec; /* Nscecs of last access. */
+ __time_t st_mtime; /* Time of last modification. */
+ unsigned long int st_mtimensec; /* Nsecs of last modification. */
+ __time_t st_ctime; /* Time of last status change. */
+ unsigned long int st_ctimensec; /* Nsecs of last status change. */
+#endif
+#ifndef __USE_FILE_OFFSET64
+ unsigned long __unused4;
+ unsigned long __unused5;
+#else
+ __ino64_t st_ino; /* File serial number. */
+#endif
+ };
+
+#ifdef __USE_LARGEFILE64
+struct stat64
+ {
+ __dev_t st_dev; /* Device. */
+
+#if __WORDSIZE == 64
+ __ino64_t st_ino; /* File serial number. */
+ __nlink_t st_nlink; /* Link count. */
+ __mode_t st_mode; /* File mode. */
+#else
+ unsigned int __pad1;
+ __ino_t __st_ino; /* 32bit file serial number. */
+ __mode_t st_mode; /* File mode. */
+ __nlink_t st_nlink; /* Link count. */
+#endif
+ __uid_t st_uid; /* User ID of the file's owner. */
+ __gid_t st_gid; /* Group ID of the file's group.*/
+ __dev_t st_rdev; /* Device number, if device. */
+ unsigned short int __pad2;
+ __off64_t st_size; /* Size of file, in bytes. */
+ __blksize_t st_blksize; /* Optimal block size for I/O. */
+
+ __blkcnt64_t st_blocks; /* Number 512-byte blocks allocated. */
+#ifdef __USE_MISC
+ /* Nanosecond resolution timestamps are stored in a format
+ equivalent to 'struct timespec'. This is the type used
+ whenever possible but the Unix namespace rules do not allow the
+ identifier 'timespec' to appear in the <sys/stat.h> header.
+ Therefore we have to handle the use of this header in strictly
+ standard-compliant sources special. */
+ struct timespec st_atim; /* Time of last access. */
+ struct timespec st_mtim; /* Time of last modification. */
+ struct timespec st_ctim; /* Time of last status change. */
+# define st_atime st_atim.tv_sec /* Backward compatibility. */
+# define st_mtime st_mtim.tv_sec
+# define st_ctime st_ctim.tv_sec
+#else
+ __time_t st_atime; /* Time of last access. */
+ unsigned long int st_atimensec; /* Nscecs of last access. */
+ __time_t st_mtime; /* Time of last modification. */
+ unsigned long int st_mtimensec; /* Nsecs of last modification. */
+ __time_t st_ctime; /* Time of last status change. */
+ unsigned long int st_ctimensec; /* Nsecs of last status change. */
+#endif
+#if __WORDSIZE == 64
+ long int __unused[3];
+#else
+ __ino64_t st_ino; /* File serial number. */
+#endif
+ };
+#endif
+
+/* Tell code we have these members. */
+#define _STATBUF_ST_BLKSIZE
+#define _STATBUF_ST_RDEV
+
+/* Encoding of the file mode. */
+
+#define __S_IFMT 0170000 /* These bits determine file type. */
+
+/* File types. */
+#define __S_IFDIR 0040000 /* Directory. */
+#define __S_IFCHR 0020000 /* Character device. */
+#define __S_IFBLK 0060000 /* Block device. */
+#define __S_IFREG 0100000 /* Regular file. */
+#define __S_IFIFO 0010000 /* FIFO. */
+#define __S_IFLNK 0120000 /* Symbolic link. */
+#define __S_IFSOCK 0140000 /* Socket. */
+
+/* POSIX.1b objects. Note that these macros always evaluate to zero. But
+ they do it by enforcing the correct use of the macros. */
+#define __S_TYPEISMQ(buf) ((buf)->st_mode - (buf)->st_mode)
+#define __S_TYPEISSEM(buf) ((buf)->st_mode - (buf)->st_mode)
+#define __S_TYPEISSHM(buf) ((buf)->st_mode - (buf)->st_mode)
+
+/* Protection bits. */
+
+#define __S_ISUID 04000 /* Set user ID on execution. */
+#define __S_ISGID 02000 /* Set group ID on execution. */
+#define __S_ISVTX 01000 /* Save swapped text after use (sticky). */
+#define __S_IREAD 0400 /* Read by owner. */
+#define __S_IWRITE 0200 /* Write by owner. */
+#define __S_IEXEC 0100 /* Execute by owner. */
diff --git a/libc/sysdeps/linux/c6x/bits/syscalls.h b/libc/sysdeps/linux/c6x/bits/syscalls.h
new file mode 100644
index 0000000..382ec51
--- /dev/null
+++ b/libc/sysdeps/linux/c6x/bits/syscalls.h
@@ -0,0 +1,182 @@
+#ifndef _BITS_SYSCALLS_H
+#define _BITS_SYSCALLS_H
+#ifndef _SYSCALL_H
+# error "Never use <bits/syscalls.h> directly; include <sys/syscall.h> instead."
+#endif
+
+#ifndef __ASSEMBLER__
+
+#include <errno.h>
+
+#define SYS_ify(syscall_name) (__NR_##syscall_name)
+
+#undef __SYSCALL_STRING
+# define __SYSCALL_STRING \
+ "swe\n\t" \
+ "nop\n\t"
+
+# define __SYSCALL_RES_CHECK (__res < -255 || __res >= 0)
+
+#define __SYSCALL_CLOBBERS "cc", "memory"
+
+#define __SYSCALL_RETURN(type) \
+ if (__SYSCALL_RES_CHECK) \
+ return (type) __res; \
+ __set_errno (-__res); \
+ return (type) -1;
+
+#ifndef NOT_IN_libc
+#define DEBUG_SYSCALL(name) { \
+ char d[64];\
+ write( 2, d, snprintf( d, 64, "syscall %d error %d\n", __NR_##name, _inline_sys_result)); \
+}
+#else
+#define DEBUG_SYSCALL(name) do{} while(0)
+#endif
+
+#undef INLINE_SYSCALL
+#define INLINE_SYSCALL(name, nr, args...) \
+ ({ unsigned int _inline_sys_result = INTERNAL_SYSCALL (name, , nr, args); \
+ if (__builtin_expect (INTERNAL_SYSCALL_ERROR_P (_inline_sys_result, ), 0)) \
+ { \
+ __set_errno (INTERNAL_SYSCALL_ERRNO (_inline_sys_result, )); \
+ _inline_sys_result = (unsigned int) -1; \
+ } \
+ (int) _inline_sys_result; })
+
+#undef INLINE_SYSCALL_NOERR
+#define INLINE_SYSCALL_NOERR(name, nr, args...) \
+ ({ unsigned int _inline_sys_result = INTERNAL_SYSCALL (name, , nr, args); \
+ (int) _inline_sys_result; })
+
+#undef INTERNAL_SYSCALL_DECL
+#define INTERNAL_SYSCALL_DECL(err) do { } while (0)
+
+
+#define INTERNAL_SYSCALL( name, err, nr, args...) \
+ INTERNAL_SYSCALL_NCS( __NR_##name, err, nr, args )
+
+
+#define INTERNAL_SYSCALL_NCS(sys_num, err, nr, args...) \
+ ({ \
+ register long __A4 __asm__("A4"); \
+ register long __b0 __asm__("B0") = sys_num; \
+ LOAD_ARGS_##nr(args) \
+ __asm__ __volatile__(__SYSCALL_STRING \
+ : "=a" (__A4) \
+ : "b" (__b0) ASM_ARGS_##nr \
+ : __SYSCALL_CLOBBERS ); \
+ (int)__A4; \
+ })
+
+#undef INTERNAL_SYSCALL_ERROR_P
+#define INTERNAL_SYSCALL_ERROR_P(val, err) \
+ ((unsigned int) (val) >= 0xfffff001u)
+
+#undef INTERNAL_SYSCALL_ERRNO
+#define INTERNAL_SYSCALL_ERRNO(val, err) (-(val))
+
+#if 0
+# define CALL_ERRNO_LOCATION "call __errno_location;"
+#define __CLONE_SYSCALL_STRING \
+ "ta 0x10;" \
+ "bcs 2f;" \
+ " sub %%o1, 1, %%o1;" \
+ "and %%A4, %%o1, %%A4;" \
+ "1:" \
+ ".subsection 2;" \
+ "2:" \
+ "save %%sp, -192, %%sp;" \
+ CALL_ERRNO_LOCATION \
+ " nop;" \
+ "st %%i0, [%%A4];" \
+ "ba 1b;" \
+ " restore %%g0, -1, %%A4;" \
+ ".previous;"
+
+#define INLINE_CLONE_SYSCALL(arg1,arg2,arg3,arg4,arg5) \
+({ \
+ register long __A4 __asm__ ("A4") = (long)(arg1); \
+ register long __B4 __asm__ ("B4") = (long)(arg2); \
+ register long __A6 __asm__ ("A6") = (long)(arg3); \
+ register long __B6 __asm__ ("B6") = (long)(arg4); \
+ register long __A8 __asm__ ("A8") = (long)(arg5); \
+ register long __g1 __asm__ ("g1") = __NR_clone; \
+ __asm __volatile (__CLONE_SYSCALL_STRING : \
+ "=r" (__g1), "=r" (__A4), "=r" (__B4) : \
+ "0" (__g1), "1" (__A4), "2" (__B4), \
+ "r" (__A6), "r" (__B6), "r" (__A8) : \
+ __SYSCALL_CLOBBERS); \
+ __A4; \
+})
+#endif
+
+#define LOAD_ARGS_0()
+#define ASM_ARGS_0
+#define LOAD_ARGS_1(A4) \
+ __A4 = (int)A4; \
+ LOAD_ARGS_0()
+#define ASM_ARGS_1 ASM_ARGS_0, "a" (__A4)
+#define LOAD_ARGS_2(A4, B4) \
+ register int __B4 __asm__ ("B4") = (int) (B4); \
+ LOAD_ARGS_1 (A4)
+#define ASM_ARGS_2 ASM_ARGS_1, "b" (__B4)
+#define LOAD_ARGS_3(A4, B4, A6) \
+ register int __A6 __asm__ ("A6") = (int) (A6); \
+ LOAD_ARGS_2 (A4, B4)
+#define ASM_ARGS_3 ASM_ARGS_2, "a" (__A6)
+#define LOAD_ARGS_4(A4, B4, A6, B6) \
+ register int __B6 __asm__ ("B6") = (int) (B6); \
+ LOAD_ARGS_3 (A4, B4, A6)
+#define ASM_ARGS_4 ASM_ARGS_3, "b" (__B6)
+#define LOAD_ARGS_5(A4, B4, A6, B6, A8) \
+ register int __A8 __asm__ ("A8") = (int) (A8); \
+ LOAD_ARGS_4 (A4, B4, A6, B6)
+#define ASM_ARGS_5 ASM_ARGS_4, "a" (__A8)
+#define LOAD_ARGS_6(A4, B4, A6, B6, A8, B8) \
+ register int __B8 __asm__ ("B8") = (int) (B8); \
+ LOAD_ARGS_5 (A4, B4, A6, B6, A8)
+#define ASM_ARGS_6 ASM_ARGS_5, "b" (__B8)
+
+#ifndef _syscall0
+
+#define C_DECL_ARGS_0() void
+#define C_DECL_ARGS_1(t, v) t v
+#define C_DECL_ARGS_2(t, v, args...) t v, C_DECL_ARGS_1(args)
+#define C_DECL_ARGS_3(t, v, args...) t v, C_DECL_ARGS_2(args)
+#define C_DECL_ARGS_4(t, v, args...) t v, C_DECL_ARGS_3(args)
+#define C_DECL_ARGS_5(t, v, args...) t v, C_DECL_ARGS_4(args)
+#define C_DECL_ARGS_6(t, v, args...) t v, C_DECL_ARGS_5(args)
+
+#define C_ARGS_0()
+#define C_ARGS_1(t, v) v
+#define C_ARGS_2(t, v, args...) v, C_ARGS_1(args)
+#define C_ARGS_3(t, v, args...) v, C_ARGS_2(args)
+#define C_ARGS_4(t, v, args...) v, C_ARGS_3(args)
+#define C_ARGS_5(t, v, args...) v, C_ARGS_4(args)
+#define C_ARGS_6(t, v, args...) v, C_ARGS_5(args)
+
+#define SYSCALL_FUNC(nargs, type, name, args...) \
+type name(C_DECL_ARGS_##nargs(args)) { \
+ return (type)INLINE_SYSCALL(name, nargs, C_ARGS_##nargs(args)); \
+}
+
+#define SYSCALL_NOERR_FUNC(nargs, type, name, args...) \
+type name(C_DECL_ARGS_##nargs(args)) { \
+ return (type)INLINE_SYSCALL_NOERR(name, nargs, C_ARGS_##nargs(args)); \
+}
+
+#define _syscall0(args...) SYSCALL_FUNC(0, args)
+#define _syscall1(args...) SYSCALL_FUNC(1, args)
+#define _syscall_noerr1(args...) SYSCALL_NOERR_FUNC(1, args)
+#define _syscall2(args...) SYSCALL_FUNC(2, args)
+#define _syscall3(args...) SYSCALL_FUNC(3, args)
+#define _syscall4(args...) SYSCALL_FUNC(4, args)
+#define _syscall5(args...) SYSCALL_FUNC(5, args)
+#define _syscall6(args...) SYSCALL_FUNC(6, args)
+
+#endif /* _syscall0 */
+
+#endif /* __ASSEMBLER__ */
+#endif /* _BITS_SYSCALLS_H */
+
diff --git a/libc/sysdeps/linux/c6x/bits/uClibc_arch_features.h b/libc/sysdeps/linux/c6x/bits/uClibc_arch_features.h
new file mode 100644
index 0000000..59e7de9
--- /dev/null
+++ b/libc/sysdeps/linux/c6x/bits/uClibc_arch_features.h
@@ -0,0 +1,48 @@
+/*
+ * Track misc arch-specific features that aren't config options
+ */
+
+#ifndef _BITS_UCLIBC_ARCH_FEATURES_H
+#define _BITS_UCLIBC_ARCH_FEATURES_H
+
+/* instruction used when calling abort() to kill yourself */
+/*#define __UCLIBC_ABORT_INSTRUCTION__ "asm instruction"*/
+#undef __UCLIBC_ABORT_INSTRUCTION__
+
+/* can your target use syscall6() for mmap ? */
+#define __UCLIBC_MMAP_HAS_6_ARGS__
+
+/* does your target use syscall4() for truncate64 ? (32bit arches only) */
+#undef __UCLIBC_TRUNCATE64_HAS_4_ARGS__
+
+/* does your target have a broken create_module() ? */
+#undef __UCLIBC_BROKEN_CREATE_MODULE__
+
+/* does your target have to worry about older [gs]etrlimit() ? */
+#undef __UCLIBC_HANDLE_OLDER_RLIMIT__
+
+/* does your target have an asm .set ? */
+#define __UCLIBC_HAVE_ASM_SET_DIRECTIVE__
+
+/* define if target doesn't like .global */
+#undef __UCLIBC_ASM_GLOBAL_DIRECTIVE__
+
+/* define if target supports .weak */
+#define __UCLIBC_HAVE_ASM_WEAK_DIRECTIVE__
+
+/* define if target supports .weakext */
+#undef __UCLIBC_HAVE_ASM_WEAKEXT_DIRECTIVE__
+
+/* needed probably only for ppc64 */
+#undef __UCLIBC_HAVE_ASM_GLOBAL_DOT_NAME__
+
+/* define if target supports CFI pseudo ops */
+#undef __UCLIBC_HAVE_ASM_CFI_DIRECTIVES__
+
+/* define if target supports IEEE signed zero floats */
+#define __UCLIBC_HAVE_SIGNED_ZERO__
+
+/* only weird assemblers generally need this */
+#define __UCLIBC_ASM_LINE_SEP__ @
+
+#endif /* _BITS_UCLIBC_ARCH_FEATURES_H */
diff --git a/libc/sysdeps/linux/c6x/bits/wordsize.h b/libc/sysdeps/linux/c6x/bits/wordsize.h
new file mode 100644
index 0000000..ba643b6
--- /dev/null
+++ b/libc/sysdeps/linux/c6x/bits/wordsize.h
@@ -0,0 +1,19 @@
+/* Copyright (C) 1999 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library; if not, write to the Free
+ Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+ 02111-1307 USA. */
+
+#define __WORDSIZE 32
diff --git a/libc/sysdeps/linux/c6x/brk.c b/libc/sysdeps/linux/c6x/brk.c
new file mode 100644
index 0000000..7eb4863
--- /dev/null
+++ b/libc/sysdeps/linux/c6x/brk.c
@@ -0,0 +1,54 @@
+/*
+ * Port of uClibc for TMS320C6000 DSP architecture
+ * Copyright (C) 2004 Texas Instruments Incorporated
+ * Author of TMS320C6000 port: Aurelien Jacquiot
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU Library General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU Library General Public License
+ * for more details.
+ *
+ * You should have received a copy of the GNU Library General Public License
+ * along with this program; if not, write to the Free Software Foundation,
+ * Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ *
+ */
+
+#include <unistd.h>
+#include <sys/syscall.h>
+#include <errno.h>
+
+libc_hidden_proto(brk)
+
+/* This must be initialized data because commons can't have aliases. */
+void * __curbrk attribute_hidden = 0;
+
+int brk (void *addr)
+{
+ void *newbrk;
+
+ __asm__ __volatile__ ( \
+ "mv .d1 %2, A4\n\t" \
+ "mvk .s2 %1, B0\n\t" \
+ "swe\n\t" \
+ "nop\n\t" \
+ "mv .d2 B0, %0" \
+ : "=b" (newbrk) \
+ : "i" (__NR_brk), \
+ "a" (addr) \
+ : "memory", "cc", "B0", "A4"); \
+
+ __curbrk = newbrk;
+
+ if (newbrk < addr) {
+ __set_errno (ENOMEM);
+ return -1;
+ }
+ return 0;
+}
+libc_hidden_def(brk)
diff --git a/libc/sysdeps/linux/c6x/bsd-_setjmp.s b/libc/sysdeps/linux/c6x/bsd-_setjmp.s
new file mode 100644
index 0000000..566318a
--- /dev/null
+++ b/libc/sysdeps/linux/c6x/bsd-_setjmp.s
@@ -0,0 +1,48 @@
+ ;
+ ; Port of uClibc for TMS320C6000 DSP architecture
+ ; Copyright (C) 2004 Texas Instruments Incorporated
+ ; Author of TMS320C6000 port: Aurelien Jacquiot
+ ;
+ ; This program is free software; you can redistribute it and/or modify it
+ ; under the terms of the GNU Library General Public License as published by
+ ; the Free Software Foundation; either version 2 of the License, or (at your
+ ; option) any later version.
+ ;
+ ; This program is distributed in the hope that it will be useful, but WITHOUT
+ ; ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ ; FITNESS FOR A PARTICULAR PURPOSE. See the GNU Library General Public License
+ ; for more details.
+ ;
+ ; You should have received a copy of the GNU Library General Public License
+ ; along with this program; if not, write to the Free Software Foundation,
+ ; Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ ;
+
+ .global _setjmp
+
+_setjmp:
+ MV .D2X A4,B4 ; jmp_buf address
+|| STW .D1T2 B3,*+A4(48) ; return address
+
+ STW .D1T1 A10,*+A4(0)
+|| STW .D2T2 B10,*+B4(4)
+|| ZERO .L1 A6
+
+ STW .D1T1 A6,*+A4(52) ; no signal mask set
+|| B .S2 B3 ; returns in 5 cycles
+
+ STW .D1T1 A11,*+A4(8)
+|| STW .D2T2 B11,*+B4(12)
+ STW .D1T1 A12,*+A4(16)
+|| STW .D2T2 B12,*+B4(20)
+ STW .D1T1 A13,*+A4(24)
+|| STW .D2T2 B13,*+B4(28)
+ STW .D1T1 A14,*+A4(32)
+|| STW .D2T2 B14,*+B4(36)
+ STW .D1T1 A15,*+A4(40)
+|| STW .D2T2 B15,*+B4(44)
+|| ZERO .L1 A4 ; return values
+
+
+
+
diff --git a/libc/sysdeps/linux/c6x/bsd-setjmp.S b/libc/sysdeps/linux/c6x/bsd-setjmp.S
new file mode 100644
index 0000000..3ab597d
--- /dev/null
+++ b/libc/sysdeps/linux/c6x/bsd-setjmp.S
@@ -0,0 +1,67 @@
+ ;
+ ; Port of uClibc for TMS320C6000 DSP architecture
+ ; Copyright (C) 2004 Texas Instruments Incorporated
+ ; Author of TMS320C6000 port: Aurelien Jacquiot
+ ;
+ ; This program is free software; you can redistribute it and/or modify it
+ ; under the terms of the GNU Library General Public License as published by
+ ; the Free Software Foundation; either version 2 of the License, or (at your
+ ; option) any later version.
+ ;
+ ; This program is distributed in the hope that it will be useful, but WITHOUT
+ ; ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ ; FITNESS FOR A PARTICULAR PURPOSE. See the GNU Library General Public License
+ ; for more details.
+ ;
+ ; You should have received a copy of the GNU Library General Public License
+ ; along with this program; if not, write to the Free Software Foundation,
+ ; Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ ;
+
+ .global setjmp
+setjmp:
+#if 0
+.if 1 /* was: .if (CONFIG_UCLIBC_SHARED == 0) */
+
+ MVKL .S1 ___curr_eh_stack_entry,A6
+|| SUB .D1X A4,B15,A3
+ MVKH .S1 ___curr_eh_stack_entry,A6
+|| CMPGT .L1 A3,4,A0 ; A0 set if C++ exceptions case
+
+ LDW .D1T1 *A6,A2
+.else
+ MVKL .S2 (___curr_eh_stack_entry - $bss)/4,B6
+|| SUB .D1X A4,B15,A3
+ MVKH .S2 (___curr_eh_stack_entry - $bss)/4,B6
+|| CMPGT .L1 A3,4,A0 ; A0 set if C++ exceptions case
+
+ LDW .D2T1 *+B14[B6],A2
+.endif
+ NOP
+#else
+ MVK .S1 0, A0
+#endif
+
+ MVK .L2 1,B4 ; indicate to ___sigjmp_save to save signal mask
+|| MV .D2X A4,B6 ; jmp_buf address
+|| STW .D1T2 B3,*+A4(48) ; return address
+
+ ADDAW .D1 A2,2,A2
+ [A0] CMPEQ .L1 A4,A2,A0 ; A0 set if C++ exceptions case
+
+ STW .D1T1 A10,*+A4(0)
+|| STW .D2T2 B10,*+B6(4)
+||[!A0] B .S1 __sigjmp_save ; branch to ___sigjmp_save in 5 cycles
+||[A0] B .S2 B3
+
+ STW .D1T1 A11,*+A4(8)
+|| STW .D2T2 B11,*+B6(12)
+ STW .D1T1 A12,*+A4(16)
+|| STW .D2T2 B12,*+B6(20)
+ STW .D1T1 A13,*+A4(24)
+|| STW .D2T2 B13,*+B6(28)
+ STW .D1T1 A14,*+A4(32)
+|| STW .D2T2 B14,*+B6(36)
+ STW .D1T1 A15,*+A4(40)
+|| STW .D2T2 B15,*+B6(44)
+||[A0] ZERO .L1 A4 ; returns 0 for the C++ case
diff --git a/libc/sysdeps/linux/c6x/clone.S b/libc/sysdeps/linux/c6x/clone.S
new file mode 100644
index 0000000..8d9da4b
--- /dev/null
+++ b/libc/sysdeps/linux/c6x/clone.S
@@ -0,0 +1,97 @@
+ ;
+ ; Port of uClibc for TMS320C6000 DSP architecture
+ ; Copyright (C) 2004 Texas Instruments Incorporated
+ ; Author of TMS320C6000 port: Aurelien Jacquiot
+ ;
+ ; This program is free software; you can redistribute it and/or modify it
+ ; under the terms of the GNU Library General Public License as published by
+ ; the Free Software Foundation; either version 2 of the License, or (at your
+ ; option) any later version.
+ ;
+ ; This program is distributed in the hope that it will be useful, but WITHOUT
+ ; ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ ; FITNESS FOR A PARTICULAR PURPOSE. See the GNU Library General Public License
+ ; for more details.
+ ;
+ ; You should have received a copy of the GNU Library General Public License
+ ; along with this program; if not, write to the Free Software Foundation,
+ ; Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ ;
+
+ ; int _clone(int (*fn)(void *arg), void *child_stack, int flags, void *arg);
+
+#include <asm/errno.h>
+#include <sys/syscall.h>
+
+ .global __clone
+ .global clone
+ .global __errno_location
+
+ ;Currently supports only
+ ;int clone(int (*fn)(void *arg), void *child_stack, int flags, void *arg)
+ ;
+ ;Requires update for supporting
+ ; int clone(int (*fn)(void *arg), void *child_stack, int flags, void *arg,
+ ; int *parent_tidptr, struct user_desc *newtls, int *child_pidptr)
+
+__clone:
+ ; index 1 points to the forth argument and is to be moved to B6
+ LDW .D2T2 *+B15[1],B5
+ NOP 4
+ OR .D2X B4,A4,B2 ; sanity check arguments, no NULL function or stack pointers
+|| MV .S2 B4,B9
+|| MV .D1 A4,A9 ; backup fn and child_stack pointers
+
+ [!B2] B .S2 __syscall_error
+||[!B2] MVK .S1 EINVAL,A4
+ NOP 4
+
+ MV .D1 A6,A4 ; get flags as arg0, arg1 is the new stack
+|| AND .D2 ~7,B4,B4
+
+ ; do the system call
+|| MVK .S2 120,B0 ; __NR_clone
+|| MV .L2 B5,B6
+0:
+#ifndef _TMS320C6400_PLUS
+ MVC .S2 CSR,B2
+ CLR .S2 B2,0,0,B1
+ MVC .S2 B1,CSR
+ MVC .S2 IFR,B1
+ SET .S2 B1,6,6,B1
+ MVC .S2 B1,ISR
+ MVC .S2 B2,CSR
+ NOP
+#else
+ SWE
+#endif
+
+ MV .D2 B9,B4 ; restore child stack
+
+|| CMPEQ .L1 0,A4,A2
+|| CMPLT .L2X A4,0,B2
+
+ [B2] B .S2 __syscall_error ; if syscall < 0, it is an error
+ NOP 5
+ [A2] B .S2X A9 ; branch to function
+|| [A2] MV .D1X B6,A4 ; set arg (B6 is preserved by syscall)
+ [!A2] B .S2 B3 ; otherwise (syscall result > 0) returns directly
+ [A2] ADDKPC .S2 __return_thread,B3, 4
+
+__return_thread:
+ b .s2 HIDDEN_JUMPTARGET(_exit)
+ nop 5
+
+__syscall_error:
+ NEG .S1 A4,A4
+ STW .D2T1 A4,*B15--[2]
+ STW .D2T2 B3,*+B15[1]
+ CALLP .S2 __errno_location,B3
+ LDW .D2T2 *+B15[1],B3
+ LDW .D2T1 *++B15[2],A5
+ NOP 3
+ BNOP .S2 B3,3
+ STW .D1T1 A5,*A4
+ MVK .L1 -1,A4
+
+.set clone, __clone
diff --git a/libc/sysdeps/linux/c6x/crt1.S b/libc/sysdeps/linux/c6x/crt1.S
new file mode 100644
index 0000000..810f395
--- /dev/null
+++ b/libc/sysdeps/linux/c6x/crt1.S
@@ -0,0 +1,67 @@
+;
+; Port of uClibc for TMS320C6000 DSP architecture
+;
+; Copyright (C) 2010 Texas Instruments Incorporated
+; Mark Salter <msalter at redhat.com>
+;
+; This program is free software; you can redistribute it and/or modify it
+; under the terms of the GNU Library General Public License as published by
+; the Free Software Foundation; either version 2 of the License, or (at your
+; option) any later version.
+;
+; This program is distributed in the hope that it will be useful, but WITHOUT
+; ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+; FITNESS FOR A PARTICULAR PURPOSE. See the GNU Library General Public License
+; for more details.
+;
+; You should have received a copy of the GNU Library General Public License
+; along with this program; if not, write to the Free Software Foundation,
+; Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+;
+
+ .text
+
+ ;; On entry, the dynamic linker
+ ;;
+ ;; 0(sp) pad0
+ ;; 4(sp) pad1
+ ;; 8(sp) argc
+ ;; 12(sp) argv[0]
+ ;; ...
+ ;; (4*(argc+3))(sp) NULL
+ ;; (4*(argc+4))(sp) envp[0]
+ ;; ...
+ ;; NULL
+
+ ;; Register values are unspecified, except:
+ ;;
+ ;; A4 --> pointer to rtld fini rountine
+ ;; B14 --> pointer to application DSBT table
+
+ .global _start
+_start:
+ .global _c_int00
+_c_int00:
+ ;; Things to do:
+ ;;
+ ;; * call __uClibc_main(
+ ;; int (*main)(int, char **, char **), A4
+ ;; int argc, B4
+ ;; char **argv, A6
+ ;; void (*app_init)(void), B6
+ ;; void (*app_fini)(void), A8
+ ;; void (*rtld_fini)(void), B8
+ ;; void *stack_end) A10
+
+ MV .D2X A4,B8 ; rtld_fini
+
+ LDW .D2T1 *+B14($GOT(main)), A4
+ LDW .D2T2 *+B14($GOT(_init)), B6
+ B .S2 __uClibc_main
+|| LDW .D2T1 *+B14($GOT(_fini)), A8
+
+ LDW .D2T2 *+B15(8),B4 ; argc
+ ADDAW .D1X B15,3,A6 ; **argv
+ MV .D1X B15,A10 ; stack_end
+|| ZERO .L1 A15 ; clear FP
+ NOP 2
diff --git a/libc/sysdeps/linux/c6x/crti.S b/libc/sysdeps/linux/c6x/crti.S
new file mode 100644
index 0000000..e689a04
--- /dev/null
+++ b/libc/sysdeps/linux/c6x/crti.S
@@ -0,0 +1,17 @@
+/*
+ * This file just supplies function prologues for the .init and .fini
+ * sections. It is linked in before crtbegin.o.
+ */
+
+ .section .init
+ .globl _init
+ .type _init, at function
+_init:
+ add .l2 -8, B15, B15
+ stw .d2t2 B3,*+B15(4)
+ .section .fini
+ .globl _fini
+ .type _fini, at function
+_fini:
+ add .l2 -8, B15, B15
+ stw .d2t2 B3,*+B15(4)
diff --git a/libc/sysdeps/linux/c6x/crtn.S b/libc/sysdeps/linux/c6x/crtn.S
new file mode 100644
index 0000000..37e799d
--- /dev/null
+++ b/libc/sysdeps/linux/c6x/crtn.S
@@ -0,0 +1,19 @@
+/*
+ * This file supplies function epilogues for the .init and .fini sections.
+ * It is linked in after all other files.
+ */
+
+ .section .init
+ ldw .d2t2 *+B15(4), B3
+ add .d2 B15, 8, B15
+ nop 3
+ ret .s2 B3
+ nop 5
+
+ .section .fini
+ ldw .d2t2 *+B15(4), B3
+ add .d2 B15, 8, B15
+ nop 3
+ ret .s2 B3
+ nop 5
+
diff --git a/libc/sysdeps/linux/c6x/prctl.c b/libc/sysdeps/linux/c6x/prctl.c
new file mode 100644
index 0000000..fcf1f9d
--- /dev/null
+++ b/libc/sysdeps/linux/c6x/prctl.c
@@ -0,0 +1,43 @@
+/* vi: set sw=4 ts=4: */
+/*
+ * prctl() for uClibc
+ *
+ * Copyright (C) 2000-2006 Erik Andersen <andersen at uclibc.org>
+ *
+ * Licensed under the LGPL v2.1, see the file COPYING.LIB in this tarball.
+ */
+
+#include <sys/syscall.h>
+#include <stdarg.h>
+/* psm: including sys/prctl.h would depend on kernel headers */
+
+#ifdef __NR_prctl
+extern int prctl (int __option, ...);
+int prctl (int __option, ...)
+{
+ register long no __asm__("B0");
+ register long a __asm__("A4");
+ register long b __asm__("B4");
+ register long c __asm__("A6");
+ register long d __asm__("B6");
+ register long e __asm__("A8");
+ int __res;
+ va_list ap;
+
+ va_start( ap, __option);
+ a = __option;
+ b = va_arg( ap, long);
+ c = va_arg( ap, long);
+ d = va_arg( ap, long);
+ e = va_arg( ap, long);
+ va_end( ap );
+
+ no = __NR_prctl;
+
+ __asm__ __volatile__ ("SWE" : "=a" (a) : "a" (a), "b" (b), "a" (c), "b" (d), "a" (e), "b" (no)
+ : "memory", "cc");
+
+ __res = a;
+ __SYSCALL_RETURN (int);
+}
+#endif
diff --git a/libc/sysdeps/linux/c6x/pread_write.c b/libc/sysdeps/linux/c6x/pread_write.c
new file mode 100644
index 0000000..f985b43
--- /dev/null
+++ b/libc/sysdeps/linux/c6x/pread_write.c
@@ -0,0 +1,103 @@
+/* vi: set sw=4 ts=4:
+ *
+ * Copyright (C) 2002 by Erik Andersen <andersen at uclibc.org>
+ * Based in part on the files
+ * ./sysdeps/unix/sysv/linux/pwrite.c,
+ * ./sysdeps/unix/sysv/linux/pread.c,
+ * sysdeps/posix/pread.c
+ * sysdeps/posix/pwrite.c
+ * from GNU libc 2.2.5, but reworked considerably...
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU Library General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU Library General Public License
+ * for more details.
+ *
+ * You should have received a copy of the GNU Library General Public License
+ * along with this program; if not, write to the Free Software Foundation,
+ * Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ */
+
+#define _LARGEFILE64_SOURCE
+#include <features.h>
+#undef __OPTIMIZE__
+/* We absolutely do _NOT_ want interfaces silently
+ * * * renamed under us or very bad things will happen... */
+#ifdef __USE_FILE_OFFSET64
+# undef __USE_FILE_OFFSET64
+#endif
+
+
+#include <errno.h>
+#include <sys/types.h>
+#include <sys/syscall.h>
+#include <unistd.h>
+#include <stdint.h>
+
+extern __typeof(pread) __libc_pread;
+extern __typeof(pwrite) __libc_pwrite;
+#ifdef __UCLIBC_HAS_LFS__
+extern __typeof(pread64) __libc_pread64;
+extern __typeof(pwrite64) __libc_pwrite64;
+#endif
+
+#ifdef __NR_pread64 /* Newer kernels renamed but it's the same. */
+# ifdef __NR_pread
+# error "__NR_pread and __NR_pread64 both defined???"
+# endif
+# define __NR_pread __NR_pread64
+#endif
+
+#define __NR___syscall_pread __NR_pread
+static inline _syscall5(ssize_t, __syscall_pread, int, fd, void *, buf,
+ size_t, count, off_t, offset_hi, off_t, offset_lo);
+
+ssize_t __libc_pread(int fd, void *buf, size_t count, off_t offset)
+{
+ return(__syscall_pread(fd,buf,count,offset,offset >> 31));
+}
+weak_alias (__libc_pread, pread)
+
+#if defined __UCLIBC_HAS_LFS__
+ssize_t __libc_pread64(int fd, void *buf, size_t count, off64_t offset)
+{
+ uint32_t low = offset & 0xffffffff;
+ uint32_t high = offset >> 32;
+ return(__syscall_pread(fd, buf, count, low, high));
+}
+weak_alias (__libc_pread64, pread64)
+#endif /* __UCLIBC_HAS_LFS__ */
+
+
+#ifdef __NR_pwrite64 /* Newer kernels renamed but it's the same. */
+# ifdef __NR_pwrite
+# error "__NR_pwrite and __NR_pwrite64 both defined???"
+# endif
+# define __NR_pwrite __NR_pwrite64
+#endif
+
+#define __NR___syscall_pwrite __NR_pwrite
+static inline _syscall5(ssize_t, __syscall_pwrite, int, fd, const void *, buf,
+ size_t, count, off_t, offset_hi, off_t, offset_lo);
+
+ssize_t __libc_pwrite(int fd, const void *buf, size_t count, off_t offset)
+{
+ return(__syscall_pwrite(fd,buf,count,offset,offset >> 31));
+}
+weak_alias (__libc_pwrite, pwrite)
+
+#if defined __UCLIBC_HAS_LFS__
+ssize_t __libc_pwrite64(int fd, const void *buf, size_t count, off64_t offset)
+{
+ uint32_t low = offset & 0xffffffff;
+ uint32_t high = offset >> 32;
+ return(__syscall_pwrite(fd, buf, count, low, high));
+}
+weak_alias (__libc_pwrite64, pwrite64)
+#endif /* __UCLIBC_HAS_LFS__ */
+
diff --git a/libc/sysdeps/linux/c6x/setjmp.s b/libc/sysdeps/linux/c6x/setjmp.s
new file mode 100644
index 0000000..28a4f03
--- /dev/null
+++ b/libc/sysdeps/linux/c6x/setjmp.s
@@ -0,0 +1,43 @@
+ ;
+ ; Port of uClibc for TMS320C6000 DSP architecture
+ ; Copyright (C) 2004 Texas Instruments Incorporated
+ ; Author of TMS320C6000 port: Aurelien Jacquiot
+ ;
+ ; This program is free software; you can redistribute it and/or modify it
+ ; under the terms of the GNU Library General Public License as published by
+ ; the Free Software Foundation; either version 2 of the License, or (at your
+ ; option) any later version.
+ ;
+ ; This program is distributed in the hope that it will be useful, but WITHOUT
+ ; ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ ; FITNESS FOR A PARTICULAR PURPOSE. See the GNU Library General Public License
+ ; for more details.
+ ;
+ ; You should have received a copy of the GNU Library General Public License
+ ; along with this program; if not, write to the Free Software Foundation,
+ ; Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ ;
+
+ .global __sigsetjmp
+; .ref __sigjmp_save
+
+__sigsetjmp:
+ MV .D2X A4,B6 ; jmp_buf address
+|| STW .D1T2 B3,*+A4(48) ; return address
+
+ STW .D1T1 A10,*+A4(0)
+|| STW .D2T2 B10,*+B6(4)
+|| B .S2 __sigjmp_save ; branch to ___sigjmp_save in 5 cycles
+
+ STW .D1T1 A11,*+A4(8)
+|| STW .D2T2 B11,*+B6(12)
+ STW .D1T1 A12,*+A4(16)
+|| STW .D2T2 B12,*+B6(20)
+ STW .D1T1 A13,*+A4(24)
+|| STW .D2T2 B13,*+B6(28)
+ STW .D1T1 A14,*+A4(32)
+|| STW .D2T2 B14,*+B6(36)
+ STW .D1T1 A15,*+A4(40)
+|| STW .D2T2 B15,*+B6(44)
+
+
diff --git a/libc/sysdeps/linux/c6x/sigaction.c b/libc/sysdeps/linux/c6x/sigaction.c
new file mode 100644
index 0000000..1865998
--- /dev/null
+++ b/libc/sysdeps/linux/c6x/sigaction.c
@@ -0,0 +1,115 @@
+/*
+ Copyright (C) 2010 Texas Instruments Incorporated
+ Adapted from i386 version by Mark Salter <msalter at redhat.com>
+
+ Copyright (C) 1997, 1998, 1999, 2000 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Library General Public License as
+ published by the Free Software Foundation; either version 2 of the
+ License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Library General Public License for more details.
+
+ You should have received a copy of the GNU Library General Public
+ License along with the GNU C Library; see the file COPYING.LIB. If not,
+ write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ Boston, MA 02111-1307, USA.
+
+ Totally hacked up for uClibc by Erik Andersen <andersen at codepoet.org>
+ */
+
+#include <errno.h>
+#include <signal.h>
+#include <string.h>
+#include <sys/syscall.h>
+#include <bits/kernel_sigaction.h>
+
+#define SA_RESTORER 0x04000000
+
+extern __typeof(sigaction) __libc_sigaction;
+
+extern void restore_rt(void) __asm__ ("__restore_rt") attribute_hidden;
+extern void restore(void) __asm__ ("__restore") attribute_hidden;
+
+/* If ACT is not NULL, change the action for SIG to *ACT.
+ If OACT is not NULL, put the old action for SIG in *OACT. */
+int __libc_sigaction (int sig, const struct sigaction *act, struct sigaction *oact)
+{
+ int result;
+ struct kernel_sigaction kact, koact;
+
+#ifdef SIGCANCEL
+ if (sig == SIGCANCEL) {
+ __set_errno (EINVAL);
+ return -1;
+ }
+#endif
+
+ if (act) {
+ kact.k_sa_handler = act->sa_handler;
+ memcpy (&kact.sa_mask, &act->sa_mask, sizeof (kact.sa_mask));
+ kact.sa_flags = act->sa_flags;
+
+ kact.sa_flags = act->sa_flags | SA_RESTORER;
+ kact.sa_restorer = ((act->sa_flags & SA_SIGINFO)
+ ? &restore_rt : &restore);
+ }
+
+ /* XXX The size argument hopefully will have to be changed to the
+ real size of the user-level sigset_t. */
+ result = __syscall_rt_sigaction(sig, act ? __ptrvalue (&kact) : NULL,
+ oact ? __ptrvalue (&koact) : NULL, _NSIG / 8);
+
+ if (oact && result >= 0) {
+ oact->sa_handler = koact.k_sa_handler;
+ memcpy (&oact->sa_mask, &koact.sa_mask, sizeof (oact->sa_mask));
+ oact->sa_flags = koact.sa_flags;
+ oact->sa_restorer = koact.sa_restorer;
+ }
+ return result;
+}
+
+#ifndef LIBC_SIGACTION
+weak_alias(__libc_sigaction,sigaction)
+libc_hidden_weak(sigaction)
+#endif
+
+/* NOTE: Please think twice before making any changes to the bits of
+ code below. GDB needs some intimate knowledge about it to
+ recognize them as signal trampolines, and make backtraces through
+ signal handlers work right. Important are both the names
+ (__restore and __restore_rt) and the exact instruction sequence.
+ If you ever feel the need to make any changes, please notify the
+ appropriate GDB maintainer. */
+
+#define RESTORE(name, syscall) RESTORE2 (name, syscall)
+#define RESTORE2(name, syscall) \
+__asm__ \
+ ( \
+ " .text\n" \
+ " .global " #name "\n" \
+ "__" #name ":\n" \
+ " MVK " #syscall ",B0\n" \
+ " SWE\n" \
+ " NOP\n" \
+ " NOP\n" \
+ " NOP\n" \
+ " NOP\n" \
+ " NOP\n" \
+ " NOP\n" \
+ );
+
+#ifdef __NR_rt_sigaction
+/* The return code for realtime-signals. */
+RESTORE (restore_rt, __NR_rt_sigreturn)
+#endif
+
+#ifdef __NR_sigreturn
+/* For the boring old signals. */
+RESTORE (restore, __NR_sigreturn)
+#endif
diff --git a/libc/sysdeps/linux/c6x/sys/procfs.h b/libc/sysdeps/linux/c6x/sys/procfs.h
new file mode 100644
index 0000000..41c2d08
--- /dev/null
+++ b/libc/sysdeps/linux/c6x/sys/procfs.h
@@ -0,0 +1,122 @@
+/* Copyright (C) 1996, 1997, 1999, 2000, 2001 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library; if not, write to the Free
+ Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+ 02111-1307 USA. */
+
+#ifndef _SYS_PROCFS_H
+#define _SYS_PROCFS_H 1
+
+/* This is somewhat modelled after the file of the same name on SVR4
+ systems. It provides a definition of the core file format for ELF
+ used on Linux. It doesn't have anything to do with the /proc file
+ system, even though Linux has one.
+
+ Anyway, the whole purpose of this file is for GDB and GDB only.
+ Don't read too much into it. Don't use it for anything other than
+ GDB unless you know what you are doing. */
+
+#include <features.h>
+#include <sys/time.h>
+#include <sys/types.h>
+#include <sys/user.h>
+
+__BEGIN_DECLS
+
+/* Type for a general-purpose register. */
+typedef unsigned long elf_greg_t;
+
+/* And the whole bunch of them. We could have used `struct
+ user_regs_struct' directly in the typedef, but tradition says that
+ the register set is an array, which does have some peculiar
+ semantics, so leave it that way. */
+#define ELF_NGREG 20
+typedef elf_greg_t elf_gregset_t[ELF_NGREG];
+
+/* Signal info. */
+struct elf_siginfo
+ {
+ int si_signo; /* Signal number. */
+ int si_code; /* Extra code. */
+ int si_errno; /* Errno. */
+ };
+
+
+/* Definitions to generate Intel SVR4-like core files. These mostly
+ have the same names as the SVR4 types with "elf_" tacked on the
+ front to prevent clashes with Linux definitions, and the typedef
+ forms have been avoided. This is mostly like the SVR4 structure,
+ but more Linuxy, with things that Linux does not support and which
+ GDB doesn't really use excluded. */
+
+struct elf_prstatus
+ {
+ struct elf_siginfo pr_info; /* Info associated with signal. */
+ short int pr_cursig; /* Current signal. */
+ unsigned long int pr_sigpend; /* Set of pending signals. */
+ unsigned long int pr_sighold; /* Set of held signals. */
+ __pid_t pr_pid;
+ __pid_t pr_ppid;
+ __pid_t pr_pgrp;
+ __pid_t pr_sid;
+ struct timeval pr_utime; /* User time. */
+ struct timeval pr_stime; /* System time. */
+ struct timeval pr_cutime; /* Cumulative user time. */
+ struct timeval pr_cstime; /* Cumulative system time. */
+ elf_gregset_t pr_reg; /* GP registers. */
+ int pr_fpvalid; /* True if math copro being used. */
+ };
+
+
+#define ELF_PRARGSZ (80) /* Number of chars for args. */
+
+struct elf_prpsinfo
+ {
+ char pr_state; /* Numeric process state. */
+ char pr_sname; /* Char for pr_state. */
+ char pr_zomb; /* Zombie. */
+ char pr_nice; /* Nice val. */
+ unsigned long int pr_flag; /* Flags. */
+ unsigned short int pr_uid;
+ unsigned short int pr_gid;
+ int pr_pid, pr_ppid, pr_pgrp, pr_sid;
+ /* Lots missing */
+ char pr_fname[16]; /* Filename of executable. */
+ char pr_psargs[ELF_PRARGSZ]; /* Initial part of arg list. */
+ };
+
+
+/* The rest of this file provides the types for emulation of the
+ Solaris <proc_service.h> interfaces that should be implemented by
+ users of libthread_db. */
+
+/* Addresses. */
+typedef void *psaddr_t;
+
+/* Register sets. Linux has different names. */
+typedef elf_gregset_t prgregset_t;
+typedef elf_gregset_t prfpregset_t;
+
+/* We don't have any differences between processes and threads,
+ therefore have only one PID type. */
+typedef __pid_t lwpid_t;
+
+/* Process status and info. In the end we do provide typedefs for them. */
+typedef struct elf_prstatus prstatus_t;
+typedef struct elf_prpsinfo prpsinfo_t;
+
+__END_DECLS
+
+#endif /* sys/procfs.h */
diff --git a/libc/sysdeps/linux/c6x/sys/reg.h b/libc/sysdeps/linux/c6x/sys/reg.h
new file mode 100644
index 0000000..46857ba
--- /dev/null
+++ b/libc/sysdeps/linux/c6x/sys/reg.h
@@ -0,0 +1,26 @@
+/*
+ * Port of uClibc for TMS320C6000 DSP architecture
+ * Copyright (C) 2004 Texas Instruments Incorporated
+ * Author of TMS320C6000 port: Aurelien Jacquiot
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU Library General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU Library General Public License
+ * for more details.
+ *
+ * You should have received a copy of the GNU Library General Public License
+ * along with this program; if not, write to the Free Software Foundation,
+ * Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ *
+ */
+#ifndef _SYS_REG_H
+#define _SYS_REG_H 1
+
+#include <asm/ptrace.h>
+
+#endif /* _SYS_REG_H */
diff --git a/libc/sysdeps/linux/c6x/sys/ucontext.h b/libc/sysdeps/linux/c6x/sys/ucontext.h
new file mode 100644
index 0000000..9a3922a
--- /dev/null
+++ b/libc/sysdeps/linux/c6x/sys/ucontext.h
@@ -0,0 +1,39 @@
+/* Copyright (C) 1997, 1999, 2001 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library; if not, write to the Free
+ Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+ 02111-1307 USA. */
+
+#ifndef _SYS_UCONTEXT_H
+#define _SYS_UCONTEXT_H 1
+
+#include <features.h>
+#include <signal.h>
+#include <bits/sigcontext.h>
+
+/* A machine context is exactly a sigcontext. */
+typedef struct sigcontext mcontext_t;
+
+/* Userlevel context. */
+typedef struct ucontext
+{
+ unsigned long uc_flags;
+ struct ucontext *uc_link;
+ stack_t uc_stack;
+ mcontext_t uc_mcontext;
+ __sigset_t uc_sigmask;
+} ucontext_t;
+
+#endif /* sys/ucontext.h */
diff --git a/libc/sysdeps/linux/c6x/sys/user.h b/libc/sysdeps/linux/c6x/sys/user.h
new file mode 100644
index 0000000..8c0a99d
--- /dev/null
+++ b/libc/sysdeps/linux/c6x/sys/user.h
@@ -0,0 +1,28 @@
+/* Copyright (C) 2010 Texas Instruments Incorporated
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library; if not, write to the Free
+ Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+ 02111-1307 USA. */
+
+#ifndef _SYS_USER_H
+#define _SYS_USER_H 1
+
+/* The whole purpose of this file is for GDB and GDB only. Don't read
+ too much into it. Don't use it for anything other than GDB unless
+ you know what you are doing. */
+
+/* Left blank as a placeholder for now */
+
+#endif /* sys/user.h */
diff --git a/libc/sysdeps/linux/c6x/syscall.c b/libc/sysdeps/linux/c6x/syscall.c
new file mode 100644
index 0000000..ea947b2
--- /dev/null
+++ b/libc/sysdeps/linux/c6x/syscall.c
@@ -0,0 +1,49 @@
+/*
+ * syscall.c
+ *
+ * Port on Texas Instruments TMS320C6x architecture
+ *
+ * Copyright (C) 2006, 2010 Texas Instruments Incorporated
+ * Author: Thomas Charleux (thomas.charleux at jaluna.com)
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#include <features.h>
+#include <errno.h>
+#include <sys/types.h>
+#include <sys/syscall.h>
+#include <unistd.h>
+#include <stdarg.h>
+
+long int syscall (long int __sysno, ...)
+{
+ register long no __asm__("B0");
+ register long a __asm__("A4");
+ register long b __asm__("B4");
+ register long c __asm__("A6");
+ register long d __asm__("B6");
+ register long e __asm__("A8");
+ register long f __asm__("B8");
+ long __res;
+ va_list ap;
+
+ va_start( ap, __sysno);
+ a = va_arg( ap, long);
+ b = va_arg( ap, long);
+ c = va_arg( ap, long);
+ d = va_arg( ap, long);
+ e = va_arg( ap, long);
+ f = va_arg( ap, long);
+ va_end( ap );
+
+ no = __sysno;
+
+ __asm__ __volatile__ ("SWE" : "=a" (a) : "a" (a), "b" (b), "a" (c), "b" (d), "a" (e), "b" (f), "b" (no)
+ : "memory", "cc");
+
+ __res = a;
+ __SYSCALL_RETURN (long);
+}
diff --git a/libc/sysdeps/linux/c6x/vfork.c b/libc/sysdeps/linux/c6x/vfork.c
new file mode 100644
index 0000000..f19dcd4
--- /dev/null
+++ b/libc/sysdeps/linux/c6x/vfork.c
@@ -0,0 +1,26 @@
+/*
+ * Port of uClibc for TMS320C6000 DSP architecture
+ * Copyright (C) 2005 Texas Instruments Incorporated
+ * Author of TMS320C6000 port: Aurelien Jacquiot
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU Library General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU Library General Public License
+ * for more details.
+ *
+ * You should have received a copy of the GNU Library General Public License
+ * along with this program; if not, write to the Free Software Foundation,
+ * Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ *
+ */
+#include <features.h>
+__asm__(" .text\n"
+ "vfork: \n"
+ " MVKL .S1 ___libc_vfork,A0\n"
+ " MVKH .S1 ___libc_vfork,A0\n"
+ " BNOP .S2X A0,5\n");
diff --git a/libc/sysdeps/linux/common/Makefile.in b/libc/sysdeps/linux/common/Makefile.in
index 302fa64..fd55333 100644
--- a/libc/sysdeps/linux/common/Makefile.in
+++ b/libc/sysdeps/linux/common/Makefile.in
@@ -50,6 +50,7 @@ CSRC-$(UCLIBC_HAS_EPOLL) += epoll.c
CSRC-$(UCLIBC_HAS_XATTR) += xattr.c
CSRC-$(UCLIBC_HAS_PROFILING) += noophooks.c #pcprofile.c
CSRC-$(UCLIBC_SV4_DEPRECATED) += ustat.c
+CSRC- += $(if $(findstring =c6x=,=$(TARGET_ARCH)=),vfork.c)
CSRC- += $(if $(findstring =sh=,=$(TARGET_ARCH)=),longjmp.c vfork.c)
CSRC- += $(if $(findstring =sparc=,=$(TARGET_ARCH)=),vfork.c)
CSRC- += $(if $(findstring =i386=,=$(TARGET_ARCH)=),vfork.c)
diff --git a/libpthread/linuxthreads.old/sysdeps/c6x/pt-machine.h b/libpthread/linuxthreads.old/sysdeps/c6x/pt-machine.h
new file mode 100644
index 0000000..cabd4e3
--- /dev/null
+++ b/libpthread/linuxthreads.old/sysdeps/c6x/pt-machine.h
@@ -0,0 +1,64 @@
+/* Machine-dependent pthreads configuration and inline functions.
+ C6x version.
+ Copyright (C) 2004 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+ Contributed by Aurelien Jacquiot <aurelien.jacquiot at jaluna.com>.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public License as
+ published by the Free Software Foundation; either version 2.1 of the
+ License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library; see the file COPYING.LIB. If not,
+ write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ Boston, MA 02111-1307, USA. */
+
+#ifndef _PT_MACHINE_H
+#define _PT_MACHINE_H 1
+
+#ifndef PT_EI
+# define PT_EI extern inline
+#endif
+
+extern int __compare_and_swap (long int *p, long int oldval, long int newval);
+
+/* Spinlock implementation; required. */
+static inline long int
+testandset (int *spinlock)
+{
+ register unsigned int ret = 1;
+ int dummy;
+ __asm__ __volatile__ ("mvc .s2 CSR, %0\n\tand .s2 -2, %0, %0\n\tmvc .s2 %0, CSR\n"
+ : "=b" (dummy));
+
+ if (*spinlock == 0) {
+ *spinlock = 1;
+ ret = 0;
+ }
+ __asm__ __volatile__ ("mvc .s2 CSR, %0\n\tor .s2 1, %0, %0\n\tmvc .s2 %0, CSR\n"
+ : "=b" (dummy));
+ return ret;
+}
+
+#define WRITE_MEMORY_BARRIER()
+#define READ_MEMORY_BARRIER()
+
+/* Get some notion of the current stack. Need not be exactly the top
+ of the stack, just something somewhere in the current frame. */
+#define CURRENT_STACK_FRAME get_stack_pointer()
+static inline char * get_stack_pointer(void)
+{
+ char *sp;
+ __asm__ __volatile__ ("mv .d2 B15, %0" : "=b" (sp));
+ return sp;
+}
+
+#define THREAD_STACK_OFFSET 8
+
+#endif /* pt-machine.h */
--
1.7.3.4
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