[uClibc-cvs] uClibc/extra/gcc-uClibc gcc-uClibc.c,1.49,1.50 Makefile,1.53,1.54
Erik Andersen
andersen at codepoet.org
Wed Nov 27 23:34:10 UTC 2002
Update of /var/cvs/uClibc/extra/gcc-uClibc
In directory winder:/tmp/cvs-serv365/extra/gcc-uClibc
Modified Files:
gcc-uClibc.c Makefile
Log Message:
Make support for global constructors and global destructors be
configurable, so people who do not need or want ctor/dtor support
can disable it and make their binaries a little bit smaller.
-Erik
Index: gcc-uClibc.c
===================================================================
RCS file: /var/cvs/uClibc/extra/gcc-uClibc/gcc-uClibc.c,v
retrieving revision 1.49
retrieving revision 1.50
diff -u -d -r1.49 -r1.50
--- gcc-uClibc.c 15 Nov 2002 01:10:48 -0000 1.49
+++ gcc-uClibc.c 27 Nov 2002 23:34:05 -0000 1.50
@@ -83,10 +83,12 @@
static char static_linking[] = "-static";
static char nostdinc[] = "-nostdinc";
-static char nostdinc_plus[] = "-nostdinc++";
static char nostartfiles[] = "-nostartfiles";
static char nodefaultlibs[] = "-nodefaultlibs";
static char nostdlib[] = "-nostdlib";
+#ifdef __UCLIBC_CTOR_DTOR__
+static char nostdinc_plus[] = "-nostdinc++";
+#endif
extern void *xmalloc(size_t size)
@@ -120,9 +122,8 @@
int main(int argc, char **argv)
{
int use_build_dir = 0, linking = 1, use_static_linking = 0;
- int use_stdinc = 1, use_nostdinc_plus = 0, use_start = 1, use_stdlib = 1, use_pic = 0;
+ int use_stdinc = 1, use_start = 1, use_stdlib = 1, use_pic = 0;
int source_count = 0, use_rpath = 0, verbose = 0;
- int ctor_dtor = 1, cplusplus = 0;
int i, j, k, l, m, n;
char ** gcc_argv;
char ** gcc_argument;
@@ -141,15 +142,19 @@
char *our_lib_path[2];
char *crt0_path[2];
const char *application_name;
+#ifdef __UCLIBC_CTOR_DTOR__
char *crti_path[2];
char *crtn_path[2];
- char *GPLUSPLUS_BIN = NULL;
int len;
+ int ctor_dtor = 1, cplusplus = 0, use_nostdinc_plus = 0;
+ char *GPLUSPLUS_BIN = NULL;
+#endif
application_name = basename(argv[0]);
if (application_name[0] == '-')
application_name++;
+#ifdef __UCLIBC_CTOR_DTOR__
/* We must use strstr since g++ might be named like a
* cross compiler (i.e. arm-linux-g++). We must also
* search carefully, in case we are searching something
@@ -168,6 +173,7 @@
cplusplus = 1;
use_nostdinc_plus = 1;
}
+#endif
devprefix = getenv("UCLIBC_DEVEL_PREFIX");
if (!devprefix) {
@@ -193,10 +199,12 @@
xstrcat(&(crt0_path[0]), devprefix, "/lib/crt0.o", NULL);
xstrcat(&(crt0_path[1]), builddir, "/lib/crt0.o", NULL);
+#ifdef __UCLIBC_CTOR_DTOR__
xstrcat(&(crti_path[0]), devprefix, "/lib/crti.o", NULL);
xstrcat(&(crti_path[1]), builddir, "/lib/crti.o", NULL);
xstrcat(&(crtn_path[0]), devprefix, "/lib/crtn.o", NULL);
xstrcat(&(crtn_path[1]), builddir, "/lib/crtn.o", NULL);
+#endif
xstrcat(&(our_lib_path[0]), "-L", devprefix, "/lib", NULL);
xstrcat(&(our_lib_path[1]), "-L", builddir, "/lib", NULL);
@@ -267,11 +275,14 @@
} else if (strcmp(nostdlib,argv[i]) == 0) {
use_start = 0;
use_stdlib = 0;
- } else if (strcmp(nostdinc_plus,argv[i]) == 0) {
+ }
+#ifdef __UCLIBC_CTOR_DTOR__
+ else if (strcmp(nostdinc_plus,argv[i]) == 0) {
if (cplusplus==1) {
use_nostdinc_plus = 0;
}
}
+#endif
break;
case 's':
if (strstr(argv[i],static_linking) != NULL) {
@@ -310,10 +321,13 @@
} else if (strcmp("--uclibc-use-rpath",argv[i]) == 0) {
use_rpath = 1;
argv[i]='\0';
- } else if (strcmp("--uclibc-no-ctors",argv[i]) == 0) {
+ }
+#ifdef __UCLIBC_CTOR_DTOR__
+ else if (strcmp("--uclibc-no-ctors",argv[i]) == 0) {
ctor_dtor = 0;
argv[i]='\0';
}
+#endif
break;
}
} else { /* assume it is an existing source file */
@@ -325,9 +339,11 @@
gcc_argument = __builtin_alloca(sizeof(char*) * (argc + 20));
i = 0; k = 0;
+#ifdef __UCLIBC_CTOR_DTOR__
if (cplusplus && GPLUSPLUS_BIN)
gcc_argv[i++] = GPLUSPLUS_BIN;
else
+#endif
gcc_argv[i++] = GCC_BIN;
for ( j = 1 ; j < argc ; j++ ) {
@@ -370,6 +386,7 @@
}
if (use_stdinc && source_count) {
gcc_argv[i++] = nostdinc;
+#ifdef __UCLIBC_CTOR_DTOR__
if (cplusplus) {
char *cppinc;
if (use_nostdinc_plus) {
@@ -382,6 +399,7 @@
gcc_argv[i++] = "-isystem";
gcc_argv[i++] = cppinc;
}
+#endif
gcc_argv[i++] = "-isystem";
gcc_argv[i++] = uClibc_inc[use_build_dir];
gcc_argv[i++] = "-iwithprefix";
@@ -392,6 +410,7 @@
if (linking && source_count) {
if (use_start) {
+#ifdef __UCLIBC_CTOR_DTOR__
if (ctor_dtor) {
gcc_argv[i++] = crti_path[use_build_dir];
if (use_pic) {
@@ -400,6 +419,7 @@
gcc_argv[i++] = LIBGCC_DIR "crtbegin.o" ;
}
}
+#endif
gcc_argv[i++] = crt0_path[use_build_dir];
}
for ( l = 0 ; l < k ; l++ ) {
@@ -413,14 +433,17 @@
if (libraries[l]) gcc_argv[i++] = libraries[l];
}
if (use_stdlib) {
+#ifdef __UCLIBC_CTOR_DTOR__
if (cplusplus) {
gcc_argv[ i++ ] = "-lstdc++";
gcc_argv[ i++ ] = "-lm";
}
+#endif
gcc_argv[i++] = "-lc";
gcc_argv[i++] = "-lgcc";
//gcc_argv[i++] = "-Wl,--end-group";
}
+#ifdef __UCLIBC_CTOR_DTOR__
if (ctor_dtor) {
if (use_pic) {
gcc_argv[i++] = LIBGCC_DIR "crtendS.o" ;
@@ -429,6 +452,7 @@
}
gcc_argv[i++] = crtn_path[use_build_dir];
}
+#endif
} else {
for ( l = 0 ; l < k ; l++ ) {
if (gcc_argument[l]) gcc_argv[i++] = gcc_argument[l];
@@ -443,8 +467,10 @@
fflush(stdout);
}
//no need to free memory from xstrcat because we never return...
+#ifdef __UCLIBC_CTOR_DTOR__
if (cplusplus && GPLUSPLUS_BIN)
return execvp(GPLUSPLUS_BIN, gcc_argv);
else
+#endif
return execvp(GCC_BIN, gcc_argv);
}
Index: Makefile
===================================================================
RCS file: /var/cvs/uClibc/extra/gcc-uClibc/Makefile,v
retrieving revision 1.53
retrieving revision 1.54
diff -u -d -r1.53 -r1.54
--- Makefile 8 Nov 2002 09:51:25 -0000 1.53
+++ Makefile 27 Nov 2002 23:34:05 -0000 1.54
@@ -1,7 +1,7 @@
# Makefile for building a fake gcc/binutils toolchain
# that simply spoofs the location of the C library
#
-# Copyright (C) 2000,2001 Erik Andersen <andersen at uclibc.org>
+# Copyright (C) 2000-2002 Erik Andersen <andersen at uclibc.org>
#
TOPDIR = ../../
@@ -34,6 +34,11 @@
else
@echo "#undef __HAS_ELF__" >> gcc-uClibc.h
endif
+ifeq ($(strip $(UCLIBC_CTOR_DTOR)),y)
+ @echo "#define __UCLIBC_CTOR_DTOR__ 1" >> gcc-uClibc.h
+else
+ @echo "#undef __UCLIBC_CTOR_DTOR__" >> gcc-uClibc.h
+endif
gcc-uClibc: gcc-uClibc.h gcc-uClibc.c
$(NATIVE_CC) $(NATIVE_CFLAGS) -Wl,-s gcc-uClibc.c -o $(TARGET_ARCH)-uclibc-gcc
@@ -50,14 +55,16 @@
install -d $(PREFIX)$(SYSTEM_DEVEL_PREFIX)/bin;
install -m 755 $(TARGET_ARCH)-uclibc-gcc $(PREFIX)$(SYSTEM_DEVEL_PREFIX)/bin/
install -m 755 $(TARGET_ARCH)-uclibc-ld $(PREFIX)$(SYSTEM_DEVEL_PREFIX)/bin/
- ln -fs $(TARGET_ARCH)-uclibc-gcc $(PREFIX)$(SYSTEM_DEVEL_PREFIX)/bin/$(TARGET_ARCH)-uclibc-g++
- ln -fs $(TARGET_ARCH)-uclibc-gcc $(PREFIX)$(SYSTEM_DEVEL_PREFIX)/bin/$(TARGET_ARCH)-uclibc-c++
ln -fs $(TARGET_ARCH)-uclibc-gcc $(PREFIX)$(SYSTEM_DEVEL_PREFIX)/bin/$(TARGET_ARCH)-uclibc-cc
- ln -fs $(SYSTEM_DEVEL_PREFIX)/bin/$(TARGET_ARCH)-uclibc-gcc $(PREFIX)$(DEVEL_TOOL_PREFIX)/bin/c++
- ln -fs $(SYSTEM_DEVEL_PREFIX)/bin/$(TARGET_ARCH)-uclibc-gcc $(PREFIX)$(DEVEL_TOOL_PREFIX)/bin/g++
ln -fs $(SYSTEM_DEVEL_PREFIX)/bin/$(TARGET_ARCH)-uclibc-gcc $(PREFIX)$(DEVEL_TOOL_PREFIX)/bin/gcc
ln -fs $(SYSTEM_DEVEL_PREFIX)/bin/$(TARGET_ARCH)-uclibc-gcc $(PREFIX)$(DEVEL_TOOL_PREFIX)/bin/cc
ln -fs $(SYSTEM_DEVEL_PREFIX)/bin/$(TARGET_ARCH)-uclibc-ld $(PREFIX)$(DEVEL_TOOL_PREFIX)/bin/ld
+ifeq ($(strip $(UCLIBC_CTOR_DTOR)),y)
+ ln -fs $(TARGET_ARCH)-uclibc-gcc $(PREFIX)$(SYSTEM_DEVEL_PREFIX)/bin/$(TARGET_ARCH)-uclibc-g++
+ ln -fs $(TARGET_ARCH)-uclibc-gcc $(PREFIX)$(SYSTEM_DEVEL_PREFIX)/bin/$(TARGET_ARCH)-uclibc-c++
+ ln -fs $(SYSTEM_DEVEL_PREFIX)/bin/$(TARGET_ARCH)-uclibc-gcc $(PREFIX)$(DEVEL_TOOL_PREFIX)/bin/c++
+ ln -fs $(SYSTEM_DEVEL_PREFIX)/bin/$(TARGET_ARCH)-uclibc-gcc $(PREFIX)$(DEVEL_TOOL_PREFIX)/bin/g++
+endif
for app in addr2line ar as cpp gasp nm objcopy \
objdump ranlib size strings strip; do \
APPNAME=`which $(CROSS)$${app}`; \
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