diff options
Diffstat (limited to 'src/runtime/sys_windows_386.s')
| -rw-r--r-- | src/runtime/sys_windows_386.s | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/src/runtime/sys_windows_386.s b/src/runtime/sys_windows_386.s index c1cc788aba..41a6ee69ca 100644 --- a/src/runtime/sys_windows_386.s +++ b/src/runtime/sys_windows_386.s @@ -9,6 +9,7 @@ // Offsets into Thread Environment Block (pointer in FS) #define TEB_TlsSlots 0xE10 +#define TEB_ArbitraryPtr 0x14 // void runtime·asmstdcall(void *c); TEXT runtime·asmstdcall(SB),NOSPLIT,$0 @@ -286,7 +287,10 @@ TEXT runtime·wintls(SB),NOSPLIT,$0 // Assert that slot is less than 64 so we can use _TEB->TlsSlots CMPL CX, $64 JB ok - CALL runtime·abort(SB) + // Fallback to the TEB arbitrary pointer. + // TODO: don't use the arbitrary pointer (see go.dev/issue/59824) + MOVL $TEB_ArbitraryPtr, CX + JMP settls ok: // Convert the TLS index at CX into // an offset from TEB_TlsSlots. @@ -294,5 +298,6 @@ ok: // Save offset from TLS into tls_g. ADDL $TEB_TlsSlots, CX +settls: MOVL CX, runtime·tls_g(SB) RET |