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| author | Rich Felker <dalias@aerifal.cx> | 2014-06-19 15:26:04 -0400 |
|---|---|---|
| committer | Rich Felker <dalias@aerifal.cx> | 2014-06-19 15:26:04 -0400 |
| commit | 39201d07e41ca4cf5f8c35d4663767aa3f75208f (patch) | |
| tree | 1e9a074237e67621534ae9d0c4fb1521968b35db | |
| parent | 5ba238e1e48d2fe4107e09903b26b2b36aa9e9ff (diff) | |
| download | musl-39201d07e41ca4cf5f8c35d4663767aa3f75208f.tar.gz musl-39201d07e41ca4cf5f8c35d4663767aa3f75208f.tar.xz musl-39201d07e41ca4cf5f8c35d4663767aa3f75208f.zip | |
add tlsdesc support for x86_64
| -rw-r--r-- | arch/x86_64/reloc.h | 2 | ||||
| -rw-r--r-- | src/ldso/x86_64/tlsdesc.s | 40 |
2 files changed, 42 insertions, 0 deletions
diff --git a/arch/x86_64/reloc.h b/arch/x86_64/reloc.h index ffab5566..9bc58496 100644 --- a/arch/x86_64/reloc.h +++ b/arch/x86_64/reloc.h @@ -25,6 +25,8 @@ static int remap_rel(int type) return REL_DTPOFF; case R_X86_64_TPOFF64: return REL_TPOFF; + case R_X86_64_TLSDESC: + return REL_TLSDESC; } return 0; } diff --git a/src/ldso/x86_64/tlsdesc.s b/src/ldso/x86_64/tlsdesc.s new file mode 100644 index 00000000..57b78e0b --- /dev/null +++ b/src/ldso/x86_64/tlsdesc.s @@ -0,0 +1,40 @@ +.text +.global __tlsdesc_static +.type __tlsdesc_static,@function +__tlsdesc_static: + mov 8(%rax),%rax + ret + +.global __tlsdesc_dynamic +.type __tlsdesc_dynamic,@function +__tlsdesc_dynamic: + mov 8(%rax),%rax + push %rdx + mov %fs:8,%rdx + push %rcx + mov (%rax),%rcx + cmp %rcx,(%rdx) + jc 1f + mov 8(%rax),%rax + add (%rdx,%rcx,8),%rax +2: pop %rcx + sub %fs:0,%rax + pop %rdx + ret +1: push %rdi + push %rdi + push %rsi + push %r8 + push %r9 + push %r10 + push %r11 + mov %rax,%rdi + call __tls_get_addr + pop %r11 + pop %r10 + pop %r9 + pop %r8 + pop %rsi + pop %rdi + pop %rdi + jmp 2b |