[PATCH] sh: Fix args for __uClibc_main() in crt1.S

[Takashi Yoshii]

Thank you for your review.
I've found some of architectures other than SH set a pointer to _dl_fini()
 to rtld_fini in ldso/ldso/*/dl-startup.h, which apparently SH should have, too.

I've add small patch. Though I am really not confidence of correctness....
This one set the pointer to _dl_init() after simple PC-relative relocation.

Test is as follows.
a.c:
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
static void msg(char *m){
  int fd=open("/dev/tty",O_RDWR);
  while(m && *m)
        write(fd,m++,1);
}
#ifdef MAIN
main(){ msg("main\n"); }
#else
void initf(void) __attribute__ ((constructor));
void initf(void){ msg("init\n"); }
void finif(void) __attribute__ ((destructor));
void finif(void){ msg("fini\n"); }
#endif

$ gcc -fPIC -shared a.c -o a.so
$ gcc -DMAIN a.c -o a
$ LD_PRELOAD=./a.so ./a
init
main
fini

I even dont know if what rtld_fini do is this or not, though ;)
But, without fix, no "fini" line appears.

/yoshii

---
SH: dl-startup.h: Set pointer to _dl_fini as an arg to _start.

 ldso/ldso/sh/dl-startup.h |    6 +++++-
 1 files changed, 5 insertions(+), 1 deletions(-)

diff --git a/ldso/ldso/sh/dl-startup.h b/ldso/ldso/sh/dl-startup.h
index 3e59093..398846c 100644
--- a/ldso/ldso/sh/dl-startup.h
+++ b/ldso/ldso/sh/dl-startup.h
@@ -12,10 +12,14 @@ __asm__(
     "	bsrf    r0\n"
     "	add	#4, r4\n"
     ".jmp_loc:\n"
+    "	sts	pr, r1	! pr == here\n"
+    "	mov.l	.L_dl_fini, r4\n"
     "	jmp	@r0\n"
-    "	mov    #0, r4 	!call _start with arg == 0\n"
+    "	add	r1, r4 	!call _start with arg _dl_init\n"
     ".L_dl_start:\n"
     "	.long   _dl_start-.jmp_loc\n"
+    ".L_dl_fini:\n"
+    "	.long   _dl_fini-.jmp_loc\n"
     "	.size	_start,.-_start\n"
     "	.previous\n"
 );
-- 1.5.4.5