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| author | Henrik Gramner <gramner@twoorioles.com> | 2024-05-13 13:56:33 +0200 |
|---|---|---|
| committer | Henrik Gramner <gramner@twoorioles.com> | 2024-05-14 15:04:46 +0200 |
| commit | 841853031b41ddf84cb7c7a183c14450c17df054 (patch) | |
| tree | a0492b304b9e0206053a4db6e068718f5b7e44e6 | |
| parent | 8141546da973cec34f69fc28314aa83624966e11 (diff) | |
| download | libdav1d-841853031b41ddf84cb7c7a183c14450c17df054.tar.gz | |
x86: Update x86inc.asm
https://code.videolan.org/videolan/x86inc.asm/-/commit/b6ba1e3045d758fd6c6e24591dac21a3dc812e1d
| -rw-r--r-- | src/ext/x86/x86inc.asm | 25 |
1 files changed, 20 insertions, 5 deletions
diff --git a/src/ext/x86/x86inc.asm b/src/ext/x86/x86inc.asm index d2bd758..fc490b6 100644 --- a/src/ext/x86/x86inc.asm +++ b/src/ext/x86/x86inc.asm @@ -232,7 +232,7 @@ DECLARE_REG_TMP_SIZE 0,1,2,3,4,5,6,7,8,9,10,11,12,13,14 %elif PIC call $+5 ; special-cased to not affect the RSB on most CPU:s pop %1 - add %1, (%2)-$+1 + add %1, -$+1+%2 %else mov %1, %2 %endif @@ -864,16 +864,16 @@ BRANCH_INSTR jz, je, jnz, jne, jl, jle, jnl, jnle, jg, jge, jng, jnge, ja, jae, %macro cextern 1 %xdefine %1 mangle(private_prefix %+ _ %+ %1) - CAT_XDEFINE cglobaled_, %1, 1 + CAT_XDEFINE cglobaled_, %1, 2 extern %1 %endmacro -; like cextern, but without the prefix +; Like cextern, but without the prefix. This should be used for symbols from external libraries. %macro cextern_naked 1 %ifdef PREFIX %xdefine %1 mangle(%1) %endif - CAT_XDEFINE cglobaled_, %1, 1 + CAT_XDEFINE cglobaled_, %1, 3 extern %1 %endmacro @@ -1268,12 +1268,27 @@ INIT_XMM %endmacro %macro call_internal 2 %xdefine %%i %2 + %define %%j %%i %ifndef cglobaled_%2 %ifdef cglobaled_%1 %xdefine %%i %1 %endif + %elif FORMAT_ELF + %if ARCH_X86_64 + %if cglobaled_%2 >= 2 + ; Always emit PLT relocations when calling external functions, + ; the linker will eliminate unnecessary PLT indirections anyway. + %define %%j %%i wrt ..plt + %endif + %elif PIC && cglobaled_%2 == 3 + ; Go through the GOT for functions declared using cextern_naked with + ; PIC, as such functions presumably exists in external libraries. + extern _GLOBAL_OFFSET_TABLE_ + LEA eax, $$+_GLOBAL_OFFSET_TABLE_ wrt ..gotpc + %define %%j [eax+%%i wrt ..got] + %endif %endif - call %%i + call %%j LOAD_MM_PERMUTATION %%i %endmacro |