diff options
Diffstat (limited to 'sysdeps/unix/sysv/linux/i386')
| -rw-r--r-- | sysdeps/unix/sysv/linux/i386/sysdep.h | 20 |
1 files changed, 13 insertions, 7 deletions
diff --git a/sysdeps/unix/sysv/linux/i386/sysdep.h b/sysdeps/unix/sysv/linux/i386/sysdep.h index 76db7b8ab9..58305447d4 100644 --- a/sysdeps/unix/sysv/linux/i386/sysdep.h +++ b/sysdeps/unix/sysv/linux/i386/sysdep.h @@ -229,9 +229,15 @@ extern int __syscall_error (int) /* Since GCC 5 and above can properly spill %ebx with PIC when needed, we can inline syscalls with 6 arguments if GCC 5 or above is used - to compile glibc. */ + to compile glibc. Disable GCC 5 optimization when compiling for + profiling since asm ("ebp") can't be used to put the 6th argument + in %ebp for syscall. */ -#if !__GNUC_PREREQ (5,0) +#if __GNUC_PREREQ (5,0) && !defined PROF +# define OPTIMIZE_FOR_GCC_5 +#endif + +#ifndef OPTIMIZE_FOR_GCC_5 /* We need some help from the assembler to generate optimal code. We define some macros here which later will be used. */ asm (".L__X'%ebx = 1\n\t" @@ -328,7 +334,7 @@ struct libc_do_syscall_args INTERNAL_SYSCALL_MAIN_INLINE(name, err, 5, args) /* Each object using 6-argument inline syscalls must include a definition of __libc_do_syscall. */ -#if __GNUC_PREREQ (5,0) +#ifdef OPTIMIZE_FOR_GCC_5 # define INTERNAL_SYSCALL_MAIN_6(name, err, args...) \ INTERNAL_SYSCALL_MAIN_INLINE(name, err, 6, args) #else /* GCC 5 */ @@ -353,7 +359,7 @@ struct libc_do_syscall_args INTERNAL_SYSCALL_MAIN_##nr (name, err, args); \ (int) resultvar; }) #ifdef I386_USE_SYSENTER -# if __GNUC_PREREQ (5,0) +# ifdef OPTIMIZE_FOR_GCC_5 # ifdef SHARED # define INTERNAL_SYSCALL_MAIN_INLINE(name, err, nr, args...) \ LOADREGS_##nr(args) \ @@ -437,7 +443,7 @@ struct libc_do_syscall_args # endif # endif /* GCC 5 */ #else -# if __GNUC_PREREQ (5,0) +# ifdef OPTIMIZE_FOR_GCC_5 # define INTERNAL_SYSCALL_MAIN_INLINE(name, err, nr, args...) \ LOADREGS_##nr(args) \ asm volatile ( \ @@ -539,7 +545,7 @@ struct libc_do_syscall_args # define RESTOREARGS_5 #endif -#if __GNUC_PREREQ (5,0) +#ifdef OPTIMIZE_FOR_GCC_5 # define LOADREGS_0() # define ASMARGS_0() # define LOADREGS_1(arg1) \ @@ -606,7 +612,7 @@ struct libc_do_syscall_args #endif /* Consistency check for position-independent code. */ -#if defined __PIC__ && !__GNUC_PREREQ (5,0) +#if defined __PIC__ && !defined OPTIMIZE_FOR_GCC_5 # define check_consistency() \ ({ int __res; \ __asm__ __volatile__ \ |