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| author | ths <ths@c046a42c-6fe2-441c-8c8c-71466251a162> | 2007-05-05 19:23:11 +0000 |
|---|---|---|
| committer | ths <ths@c046a42c-6fe2-441c-8c8c-71466251a162> | 2007-05-05 19:23:11 +0000 |
| commit | c4b89d18ba3b494545266970fe8714bc3d7f5917 (patch) | |
| tree | 85543844ae6a8c7f7e7b3dd73d804a9c8161c835 /exec-all.h | |
| parent | 26ea091859c76d5e1b8a95148aa60b59dc8ee196 (diff) | |
Some bits of Linux/MIPS host support, still segfaulty.
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@2771 c046a42c-6fe2-441c-8c8c-71466251a162
Diffstat (limited to 'exec-all.h')
| -rw-r--r-- | exec-all.h | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/exec-all.h b/exec-all.h index cb8936a69b..bc118c8a43 100644 --- a/exec-all.h +++ b/exec-all.h @@ -481,6 +481,28 @@ static inline int testandset (int *p) } #endif +#ifdef __mips__ +static inline int testandset (int *p) +{ + int ret; + + __asm__ __volatile__ ( + " .set push \n" + " .set noat \n" + " .set mips2 \n" + "1: li $1, 1 \n" + " ll %0, %1 \n" + " sc $1, %1 \n" + " bnez $1, 1b \n" + " .set pop " + : "=r" (ret), "+R" (*p) + : + : "memory"); + + return ret; +} +#endif + typedef int spinlock_t; #define SPIN_LOCK_UNLOCKED 0 |