diff options
Diffstat (limited to 'packages/uclibc/uclibc-0.9.27/thumb-swp.patch')
-rw-r--r-- | packages/uclibc/uclibc-0.9.27/thumb-swp.patch | 102 |
1 files changed, 102 insertions, 0 deletions
diff --git a/packages/uclibc/uclibc-0.9.27/thumb-swp.patch b/packages/uclibc/uclibc-0.9.27/thumb-swp.patch new file mode 100644 index 0000000000..89171f735d --- /dev/null +++ b/packages/uclibc/uclibc-0.9.27/thumb-swp.patch @@ -0,0 +1,102 @@ +--- uClibc-0.9.27/libc/sysdeps/linux/arm/bits/atomicity.h.orig 2005-08-09 13:12:59.663734027 -0700 ++++ uClibc-0.9.27/libc/sysdeps/linux/arm/bits/atomicity.h 2005-08-09 17:54:14.581605661 -0700 +@@ -31,12 +31,23 @@ + int tmp2; + int result; + __asm__ ("\n" ++#if defined(__thumb__) ++ "\t.align 0\n" ++ "\tbx pc\n" ++ "\tnop\n" ++ "\t.arm\n" ++#endif + "0:\tldr\t%0,[%3]\n\t" + "add\t%1,%0,%4\n\t" + "swp\t%2,%1,[%3]\n\t" + "cmp\t%0,%2\n\t" + "swpne\t%1,%2,[%3]\n\t" + "bne\t0b" ++#if defined(__thumb__) ++ "\torr %1, pc, #1\n" ++ "\tbx %1\n" ++ "\t.force_thumb" ++#endif + : "=&r" (result), "=&r" (tmp1), "=&r" (tmp2) + : "r" (mem), "r"(val) + : "cc", "memory"); +@@ -51,12 +62,23 @@ + int tmp2; + int tmp3; + __asm__ ("\n" ++#if defined(__thumb__) ++ "\t.align 0\n" ++ "\tbx pc\n" ++ "\tnop\n" ++ "\t.arm\n" ++#endif + "0:\tldr\t%0,[%3]\n\t" + "add\t%1,%0,%4\n\t" + "swp\t%2,%1,[%3]\n\t" + "cmp\t%0,%2\n\t" + "swpne\t%1,%2,[%3]\n\t" + "bne\t0b" ++#if defined(__thumb__) ++ "\torr %1, pc, #1\n" ++ "\tbx %1\n" ++ "\t.force_thumb" ++#endif + : "=&r" (tmp1), "=&r" (tmp2), "=&r" (tmp3) + : "r" (mem), "r"(val) + : "cc", "memory"); +@@ -68,6 +90,12 @@ + { + int result, tmp; + __asm__ ("\n" ++#if defined(__thumb__) ++ "\t.align 0\n" ++ "\tbx pc\n" ++ "\tnop\n" ++ "\t.arm\n" ++#endif + "0:\tldr\t%1,[%2]\n\t" + "mov\t%0,#0\n\t" + "cmp\t%1,%4\n\t" +@@ -78,6 +106,11 @@ + "bne\t0b\n\t" + "mov\t%0,#1\n" + "1:" ++#if defined(__thumb__) ++ "\torr %1, pc, #1\n" ++ "\tbx %1\n" ++ "\t.force_thumb" ++#endif + : "=&r" (result), "=&r" (tmp) + : "r" (p), "r" (newval), "r" (oldval) + : "cc", "memory"); +--- uClibc-0.9.27/libpthread/linuxthreads/sysdeps/arm/pt-machine.h.orig 2005-08-09 14:16:50.204774778 -0700 ++++ uClibc-0.9.27/libpthread/linuxthreads/sysdeps/arm/pt-machine.h 2005-08-09 17:55:54.027863420 -0700 +@@ -39,9 +39,24 @@ + { + register unsigned int ret; + ++#if defined(__thumb__) ++ void *pc; ++ __asm__ __volatile__( ++ ".align 0\n" ++ "\tbx pc\n" ++ "\tnop\n" ++ "\t.arm\n" ++ "\tswp %0, %2, [%3]\n" ++ "\torr %1, pc, #1\n" ++ "\tbx %1\n" ++ "\t.force_thumb" ++ : "=r"(ret), "=r"(pc) ++ : "0"(1), "r"(spinlock)); ++#else + __asm__ __volatile__("swp %0, %1, [%2]" + : "=r"(ret) + : "0"(1), "r"(spinlock)); ++#endif + + return ret; + } |