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| author | Russ Cox <rsc@golang.org> | 2021-02-22 12:56:33 -0500 |
|---|---|---|
| committer | Russ Cox <rsc@golang.org> | 2021-02-23 09:14:42 +0000 |
| commit | c4b771348c3e5c5372bd00254f2e796b627c13dc (patch) | |
| tree | 34c01be7b319a63c21d955099aae05582f2d8f3e /src/runtime/sys_windows_arm.s | |
| parent | 2a18e37c4e78e26c9f1e613dfa97aaf275ea0b4d (diff) | |
| download | go-c4b771348c3e5c5372bd00254f2e796b627c13dc.tar.gz go-c4b771348c3e5c5372bd00254f2e796b627c13dc.zip | |
runtime: fix windows/arm signal handling assembly
Bug introduced in CL 288799: R12 is used but not set.
Fixes windows/arm builder.
Change-Id: I015a5a83cfa3bdd23da1ffb73713623764f2f817
Reviewed-on: https://go-review.googlesource.com/c/go/+/295109
Trust: Russ Cox <rsc@golang.org>
Reviewed-by: Cherry Zhang <cherryyz@google.com>
Diffstat (limited to 'src/runtime/sys_windows_arm.s')
| -rw-r--r-- | src/runtime/sys_windows_arm.s | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/src/runtime/sys_windows_arm.s b/src/runtime/sys_windows_arm.s index cd230ccffd..4be5ce7da0 100644 --- a/src/runtime/sys_windows_arm.s +++ b/src/runtime/sys_windows_arm.s @@ -160,6 +160,11 @@ g0: BL (R7) // Call the go routine MOVW 16(R13), R4 // Fetch return value from stack + // Save system stack pointer for sigresume setup below. + // The exact value does not matter - nothing is read or written + // from this address. It just needs to be on the system stack. + MOVW R13, R12 + // switch back to original stack and g MOVW 24(R13), R13 MOVW 20(R13), g |