diff options
Diffstat (limited to 'src/runtime')
| -rw-r--r-- | src/runtime/asm_amd64.s | 15 | ||||
| -rw-r--r-- | src/runtime/asm_arm64.s | 15 |
2 files changed, 30 insertions, 0 deletions
diff --git a/src/runtime/asm_amd64.s b/src/runtime/asm_amd64.s index a4c6c53a90..f4244f6e06 100644 --- a/src/runtime/asm_amd64.s +++ b/src/runtime/asm_amd64.s @@ -181,6 +181,14 @@ TEXT runtime·rt0_go(SB),NOSPLIT|NOFRAME|TOPFRAME,$0 MOVQ AX, 24(SP) MOVQ BX, 32(SP) + // This is typically the entry point for Go programs. + // Call stack unwinding must not proceed past this frame. + // Set the frame pointer register to 0 so that frame pointer-based unwinders + // (which don't use debug info for performance reasons) + // won't attempt to unwind past this function. + // See go.dev/issue/63630 + MOVQ $0, BP + // create istack out of the given (operating system) stack. // _cgo_init may update stackguard. MOVQ $runtime·g0(SB), DI @@ -408,6 +416,13 @@ TEXT runtime·asminit(SB),NOSPLIT,$0-0 RET TEXT runtime·mstart(SB),NOSPLIT|TOPFRAME|NOFRAME,$0 + // This is the root frame of new Go-created OS threads. + // Call stack unwinding must not proceed past this frame. + // Set the frame pointer register to 0 so that frame pointer-based unwinders + // (which don't use debug info for performance reasons) + // won't attempt to unwind past this function. + // See go.dev/issue/63630 + MOVD $0, BP CALL runtime·mstart0(SB) RET // not reached diff --git a/src/runtime/asm_arm64.s b/src/runtime/asm_arm64.s index 902a7066aa..01f2690f4e 100644 --- a/src/runtime/asm_arm64.s +++ b/src/runtime/asm_arm64.s @@ -109,6 +109,14 @@ TEXT runtime·rt0_go(SB),NOSPLIT|TOPFRAME,$0 MOVW R0, 8(RSP) // argc MOVD R1, 16(RSP) // argv + // This is typically the entry point for Go programs. + // Call stack unwinding must not proceed past this frame. + // Set the frame pointer register to 0 so that frame pointer-based unwinders + // (which don't use debug info for performance reasons) + // won't attempt to unwind past this function. + // See go.dev/issue/63630 + MOVD $0, R29 + #ifdef TLS_darwin // Initialize TLS. MOVD ZR, g // clear g, make sure it's not junk. @@ -248,6 +256,13 @@ TEXT runtime·asminit(SB),NOSPLIT|NOFRAME,$0-0 RET TEXT runtime·mstart(SB),NOSPLIT|TOPFRAME,$0 + // This is the root frame of new Go-created OS threads. + // Call stack unwinding must not proceed past this frame. + // Set the frame pointer register to 0 so that frame pointer-based unwinders + // (which don't use debug info for performance reasons) + // won't attempt to unwind past this function. + // See go.dev/issue/63630 + MOVD $0, R29 BL runtime·mstart0(SB) RET // not reached |