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| author | Richard Lowe <richlowe@richlowe.net> | 2011-06-21 17:51:40 -0700 |
|---|---|---|
| committer | Richard Lowe <richlowe@richlowe.net> | 2011-07-02 22:17:16 -0400 |
| commit | 906a285718609002bb270fe81f8b37d8db2dcbe0 (patch) | |
| tree | df448781d9aab942628acec555da763825550bc3 | |
| parent | c61bc1fbd55cd1affdf956f9607c89db75cc6cf1 (diff) | |
| download | illumos-joyent-906a285718609002bb270fe81f8b37d8db2dcbe0.tar.gz | |
libc: Mark %g7 as #scratch in _curthread, and implement directly
We do this because GCC 4.4 will spit out a .register declaration for %g7
which differs from those in __curthread if we do not.
| -rw-r--r-- | usr/src/lib/libc/inc/thr_inlines.h | 12 |
1 files changed, 7 insertions, 5 deletions
diff --git a/usr/src/lib/libc/inc/thr_inlines.h b/usr/src/lib/libc/inc/thr_inlines.h index 57eb3523f0..7376109aa5 100644 --- a/usr/src/lib/libc/inc/thr_inlines.h +++ b/usr/src/lib/libc/inc/thr_inlines.h @@ -36,17 +36,19 @@ extern __GNU_INLINE ulwp_t * _curthread(void) { -#if defined(__amd64) ulwp_t *__value; - __asm__ __volatile__("movq %%fs:0, %0" : "=r" (__value)); + __asm__ __volatile__( +#if defined(__amd64) + "movq %%fs:0, %0\n\t" #elif defined(__i386) - ulwp_t *__value; - __asm__ __volatile__("movl %%gs:0, %0" : "=r" (__value)); + "movl %%gs:0, %0\n\t" #elif defined(__sparc) - register ulwp_t *__value __asm__("g7"); + ".register %%g7, #scratch\n\t" + "mov %%g7, %0\n\t" #else #error "port me" #endif + : "=r" (__value)); return (__value); } |