diff options
Diffstat (limited to 'packages/mozilla/firefox-3.0/Bug405992.atomic.nspr.diff')
| -rw-r--r-- | packages/mozilla/firefox-3.0/Bug405992.atomic.nspr.diff | 48 |
1 files changed, 48 insertions, 0 deletions
diff --git a/packages/mozilla/firefox-3.0/Bug405992.atomic.nspr.diff b/packages/mozilla/firefox-3.0/Bug405992.atomic.nspr.diff new file mode 100644 index 0000000000..f54f916a6a --- /dev/null +++ b/packages/mozilla/firefox-3.0/Bug405992.atomic.nspr.diff @@ -0,0 +1,48 @@ +# Add atomic operations for ARM. +diff --git a/nsprpub/pr/include/md/_linux.h b/nsprpub/pr/include/md/_linux.h +index 5b794c5..cb8d58e 100644 +--- a/nsprpub/pr/include/md/_linux.h ++++ b/nsprpub/pr/include/md/_linux.h +@@ -194,6 +194,42 @@ extern PRInt32 _PR_x86_64_AtomicSet(PRInt32 *val, PRInt32 newval); + }) + #endif + ++#if defined(__arm__) ++#define _PR_HAVE_ATOMIC_OPS ++#define _MD_INIT_ATOMIC() ++ ++typedef int (__kernel_cmpxchg_t)(int oldval, int newval, volatile int *ptr); ++#define __kernel_cmpxchg (*(__kernel_cmpxchg_t *)0xffff0fc0) ++ ++#define _MD_ATOMIC_INCREMENT(ptr) _MD_ATOMIC_ADD(ptr, 1) ++#define _MD_ATOMIC_DECREMENT(ptr) _MD_ATOMIC_ADD(ptr, -1) ++#define _MD_ATOMIC_ADD(ptr, n) \ ++ ({ \ ++ PRInt32 ov, nv; \ ++ volatile PRInt32 *vp = (ptr); \ ++ \ ++ do { \ ++ ov = *vp; \ ++ nv = ov + (n); \ ++ } \ ++ while (__kernel_cmpxchg(ov, nv, vp)); \ ++ \ ++ nv; \ ++ }) ++#define _MD_ATOMIC_SET(ptr, nv) \ ++ ({ \ ++ PRInt32 ov; \ ++ volatile PRInt32 *vp = (ptr); \ ++ \ ++ do { \ ++ ov = *vp; \ ++ } \ ++ while (__kernel_cmpxchg(ov, (nv), vp)); \ ++ \ ++ ov; \ ++ }) ++#endif ++ + #define USE_SETJMP + #if defined(__GLIBC__) && __GLIBC__ >= 2 + #define _PR_POLL_AVAILABLE |