diff options
| author | lloyd <[email protected]> | 2009-11-03 23:12:20 +0000 |
|---|---|---|
| committer | lloyd <[email protected]> | 2009-11-03 23:12:20 +0000 |
| commit | cb0d4a18f2fc77a40f6055fedb43b78606068b7b (patch) | |
| tree | b64af2ec36a07fcfb763080b9e699f988307f209 /src/hash | |
| parent | 9032fa6c541eb51c47dc7971b5d82171a1274db7 (diff) | |
Use negative values for adding constants >= 2^31 in the SHA-1 x86-64 asm.
Seems binutils 2.20.51.0.2 breaks otherwise, and binutils maintainers claim
it's not a bug. Meh.
Diffstat (limited to 'src/hash')
| -rw-r--r-- | src/hash/sha1_amd64/sha1_amd64_imp.S | 10 |
1 files changed, 8 insertions, 2 deletions
diff --git a/src/hash/sha1_amd64/sha1_amd64_imp.S b/src/hash/sha1_amd64/sha1_amd64_imp.S index 34a8318ed..ba4d4d5ef 100644 --- a/src/hash/sha1_amd64/sha1_amd64_imp.S +++ b/src/hash/sha1_amd64/sha1_amd64_imp.S @@ -103,10 +103,16 @@ ALIGN; subq $320, W +/* +* Using negative values for SHA-1 constants > 2^31 to work around +* a bug in binutils not accepting large lea displacements. +* -0x70E44324 == 0x8F1BBCDC +* -0x359D3E2A == 0xCA62C1D6 +*/ #define MAGIC1 0x5A827999 #define MAGIC2 0x6ED9EBA1 -#define MAGIC3 0x8F1BBCDC -#define MAGIC4 0xCA62C1D6 +#define MAGIC3 -0x70E44324 +#define MAGIC4 -0x359D3E2A #define T %esi #define T2 %eax |