diff options
Diffstat (limited to 'libgcc/config/sol2')
| -rw-r--r-- | libgcc/config/sol2/gmon.c | 36 |
1 files changed, 12 insertions, 24 deletions
diff --git a/libgcc/config/sol2/gmon.c b/libgcc/config/sol2/gmon.c index 81a03468b6e..652fd1ed946 100644 --- a/libgcc/config/sol2/gmon.c +++ b/libgcc/config/sol2/gmon.c @@ -44,11 +44,7 @@ extern void monstartup (char *, char *); extern void _mcleanup (void); -#ifdef __i386__ -static void internal_mcount (void) __attribute__ ((used)); -#else static void internal_mcount (char *, unsigned short *) __attribute__ ((used)); -#endif static void moncontrol (int); struct phdr { @@ -223,8 +219,19 @@ _mcleanup (void) /* Solaris 2 libraries use _mcount. */ #if defined __i386__ asm(".globl _mcount\n" + " .type _mcount, @function\n" "_mcount:\n" - " jmp internal_mcount\n"); + /* Save and restore the call-clobbered registers. */ + " pushl %eax\n" + " pushl %ecx\n" + " pushl %edx\n" + " movl 12(%esp), %edx\n" + " movl 4(%ebp), %eax\n" + " call internal_mcount\n" + " popl %edx\n" + " popl %ecx\n" + " popl %eax\n" + " ret\n"); #elif defined __x86_64__ /* See GLIBC for additional information about this technique. */ asm(".globl _mcount\n" @@ -299,32 +306,13 @@ asm(".global _mcount\n" #endif static void -#ifdef __i386__ -internal_mcount (void) -#else internal_mcount (char *selfpc, unsigned short *frompcindex) -#endif { struct tostruct *top; struct tostruct *prevtop; long toindex; static char already_setup; -#ifdef __i386__ - char *selfpc; - unsigned short *frompcindex; - - /* Find the return address for mcount and the return address for mcount's - caller. */ - - /* selfpc = pc pushed by mcount call. - This identifies the function that was just entered. */ - selfpc = (void *) __builtin_return_address (0); - /* frompcindex = pc in preceding frame. - This identifies the caller of the function just entered. */ - frompcindex = (void *) __builtin_return_address (1); -#endif - /* Only necessary without the Solaris CRTs or a proper gcrt1.o, otherwise crtpg.o or gcrt1.o take care of that. |