62 lines
2.0 KiB
Diff
62 lines
2.0 KiB
Diff
Upstream-Status: Pending
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Properly load arguments 5 an 6 for x86-64 syscall
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Use asm ("r10") and asm ("r8") to load arguments 5 an 6 for x86-64
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syscall so that it works with both x32 and x86-64.
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Received this patch from H.J. Lu <hjl.tools@gmail.com>
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Signed-off-by: Nitin A Kamble <nitin.a.kamble@intel.com>
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2011/12/02
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--- libaio-0.3.109/src/syscall-x86_64.h.x32 2009-10-09 11:17:02.000000000 -0700
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+++ libaio-0.3.109/src/syscall-x86_64.h 2011-12-02 09:09:07.537603224 -0800
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@@ -1,8 +1,18 @@
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+#ifndef __NR_io_setup
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#define __NR_io_setup 206
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+#endif
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+#ifndef __NR_io_destroy
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#define __NR_io_destroy 207
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+#endif
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+#ifndef __NR_io_getevents
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#define __NR_io_getevents 208
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+#endif
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+#ifndef __NR_io_submit
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#define __NR_io_submit 209
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+#endif
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+#ifndef __NR_io_cancel
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#define __NR_io_cancel 210
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+#endif
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#define __syscall_clobber "r11","rcx","memory"
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#define __syscall "syscall"
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@@ -42,10 +52,11 @@ return __res; \
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type fname (type1 arg1, type2 arg2, type3 arg3, type4 arg4) \
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{ \
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long __res; \
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-__asm__ volatile ("movq %5,%%r10 ;" __syscall \
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+register long __a4 asm ("r10") = (long) arg4; \
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+__asm__ volatile (__syscall \
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: "=a" (__res) \
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: "0" (__NR_##sname),"D" ((long)(arg1)),"S" ((long)(arg2)), \
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- "d" ((long)(arg3)),"g" ((long)(arg4)) : __syscall_clobber,"r10" ); \
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+ "d" ((long)(arg3)),"r" (__a4)); \
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return __res; \
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}
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@@ -54,10 +65,11 @@ return __res; \
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type fname (type1 arg1,type2 arg2,type3 arg3,type4 arg4,type5 arg5) \
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{ \
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long __res; \
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-__asm__ volatile ("movq %5,%%r10 ; movq %6,%%r8 ; " __syscall \
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+register long __a4 asm ("r10") = (long) arg4; \
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+register long __a5 asm ("r8") = (long) arg5; \
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+__asm__ volatile ( __syscall \
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: "=a" (__res) \
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: "0" (__NR_##sname),"D" ((long)(arg1)),"S" ((long)(arg2)), \
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- "d" ((long)(arg3)),"g" ((long)(arg4)),"g" ((long)(arg5)) : \
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- __syscall_clobber,"r8","r10" ); \
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+ "d" ((long)(arg3)),"r" (__a4),"r" (__a5)); \
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return __res; \
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}
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