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Diffstat (limited to 'src/runtime/sys_netbsd_amd64.s')
-rw-r--r--src/runtime/sys_netbsd_amd64.s27
1 files changed, 21 insertions, 6 deletions
diff --git a/src/runtime/sys_netbsd_amd64.s b/src/runtime/sys_netbsd_amd64.s
index 2c50adb123..7c7771bcba 100644
--- a/src/runtime/sys_netbsd_amd64.s
+++ b/src/runtime/sys_netbsd_amd64.s
@@ -250,13 +250,28 @@ TEXT runtime·sigfwd(SB),NOSPLIT,$0-32
POPQ BP
RET
-TEXT runtime·sigtramp(SB),NOSPLIT,$32
- MOVQ DI, 0(SP) // signum
- MOVQ SI, 8(SP) // info
- MOVQ DX, 16(SP) // ctx
- MOVQ R15, 24(SP) // for sigreturn
+TEXT runtime·sigtramp(SB),NOSPLIT,$72
+ // Save callee-saved C registers, since the caller may be a C signal handler.
+ MOVQ BX, bx-8(SP)
+ MOVQ BP, bp-16(SP) // save in case GOEXPERIMENT=noframepointer is set
+ MOVQ R12, r12-24(SP)
+ MOVQ R13, r13-32(SP)
+ MOVQ R14, r14-40(SP)
+ MOVQ R15, r15-48(SP)
+ // We don't save mxcsr or the x87 control word because sigtrampgo doesn't
+ // modify them.
+
+ MOVQ DX, ctx-56(SP)
+ MOVQ SI, info-64(SP)
+ MOVQ DI, signum-72(SP)
CALL runtime·sigtrampgo(SB)
- MOVQ 24(SP), R15
+
+ MOVQ r15-48(SP), R15
+ MOVQ r14-40(SP), R14
+ MOVQ r13-32(SP), R13
+ MOVQ r12-24(SP), R12
+ MOVQ bp-16(SP), BP
+ MOVQ bx-8(SP), BX
RET
TEXT runtime·mmap(SB),NOSPLIT,$0