diff options
Diffstat (limited to 'libavutil/x86/x86inc.asm')
| -rw-r--r-- | libavutil/x86/x86inc.asm | 60 |
1 files changed, 49 insertions, 11 deletions
diff --git a/libavutil/x86/x86inc.asm b/libavutil/x86/x86inc.asm index c167057921..971d210848 100644 --- a/libavutil/x86/x86inc.asm +++ b/libavutil/x86/x86inc.asm @@ -60,19 +60,38 @@ ; and x264's strides are all positive), but is not guaranteed by the ABI. ; Name of the .rodata section. -; Kludge: Something on OS X fails to align .rodata even given an align attribute, -; so use a different read-only section. %macro SECTION_RODATA 0-1 16 - %ifidn __OUTPUT_FORMAT__,macho64 - SECTION .text align=%1 - %elifidn __OUTPUT_FORMAT__,macho - SECTION .text align=%1 - fakegot: - %elifidn __OUTPUT_FORMAT__,aout + ; Kludge: Something on OS X fails to align .rodata even given an align + ; attribute, so use a different read-only section. This has been fixed in + ; yasm 0.8.0 and nasm 2.6. + %ifdef __YASM_VERSION_ID__ + %if __YASM_VERSION_ID__ < 00080000h + %define NEED_MACHO_RODATA_KLUDGE + %endif + %elifdef __NASM_VERSION_ID__ + %if __NASM_VERSION_ID__ < 02060000h + %define NEED_MACHO_RODATA_KLUDGE + %endif + %endif + + %ifidn __OUTPUT_FORMAT__,aout section .text %else - SECTION .rodata align=%1 + %ifndef NEED_MACHO_RODATA_KLUDGE + SECTION .rodata align=%1 + %else + %ifidn __OUTPUT_FORMAT__,macho64 + SECTION .text align=%1 + %elifidn __OUTPUT_FORMAT__,macho + SECTION .text align=%1 + fakegot: + %else + SECTION .rodata align=%1 + %endif + %endif %endif + + %undef NEED_MACHO_RODATA_KLUDGE %endmacro ; aout does not support align= @@ -97,7 +116,11 @@ %endif ; Always use long nops (reduces 0x90 spam in disassembly on x86_32) +; Not supported by NASM (except via smartalign package + ALIGNMODE k8, +; however that fails when used together with the -M option) +%ifdef __YASM_VER__ CPU amdnop +%endif ; Macros to eliminate most code duplication between x86_32 and x86_64: ; Currently this works only for leaf functions which load all their arguments @@ -142,10 +165,10 @@ CPU amdnop %define r%1mp %2 %elif ARCH_X86_64 ; memory %define r%1m [rsp + stack_offset + %6] - %define r%1mp qword r %+ %1m + %define r%1mp qword r %+ %1 %+ m %else %define r%1m [esp + stack_offset + %6] - %define r%1mp dword r %+ %1m + %define r%1mp dword r %+ %1 %+ m %endif %define r%1 %2 %endmacro @@ -488,9 +511,19 @@ DECLARE_ARG 7, 8, 9, 10, 11, 12, 13, 14 ; Appends cpuflags to the function name if cpuflags has been specified. %macro cglobal 1-2+ ; name, [PROLOGUE args] %if %0 == 1 + ; HACK: work around %+ broken with empty SUFFIX for nasm 2.09.10 + %ifndef cpuname + cglobal_internal %1 + %else cglobal_internal %1 %+ SUFFIX + %endif %else + ; HACK: work around %+ broken with empty SUFFIX for nasm 2.09.10 + %ifndef cpuname + cglobal_internal %1, %2 + %else cglobal_internal %1 %+ SUFFIX, %2 + %endif %endif %endmacro %macro cglobal_internal 1-2+ @@ -767,7 +800,12 @@ INIT_XMM ; Append cpuflags to the callee's name iff the appended name is known and the plain name isn't %macro call 1 + ; HACK: work around %+ broken with empty SUFFIX for nasm 2.09.10 + %ifndef cpuname + call_internal %1, %1 + %else call_internal %1, %1 %+ SUFFIX + %endif %endmacro %macro call_internal 2 %xdefine %%i %1 |