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runtime: jump instead of branch in netbsd/arm64 entry point

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CL 706175 removed the NOFRAME directive from _rt0_arm64_netbsd but
did not change the BL instruction to a JMP instruction. This causes the
frame pointer to be stored on the stack, this making direct load from
RSP to be off by 8 bytes.

Cq-Include-Trybots: luci.golang.try:gotip-netbsd-arm64
Change-Id: I0c212fbaba74cfce508f961090dc6e66154c3054
Reviewed-on: https://go-review.googlesource.com/c/go/+/707675
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Reviewed-by: Michael Pratt <mpratt@google.com>
Reviewed-by: Cherry Mui <cherryyz@google.com>
This commit is contained in:
qmuntal 2025-09-29 14:14:28 +02:00 • committed by Quim Muntal
parent 5500cbf0e4
commit 6d51f93257
1 changed files with 1 additions and 1 deletions
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2
src/runtime/rt0_netbsd_arm64.s
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@ -7,7 +7,7 @@
TEXT _rt0_arm64_netbsd(SB),NOSPLIT,$0 TEXT _rt0_arm64_netbsd(SB),NOSPLIT,$0
MOVD 0(RSP), R0 // argc MOVD 0(RSP), R0 // argc
ADD $8, RSP, R1 // argv ADD $8, RSP, R1 // argv
BL main(SB) JMP main(SB)
// When building with -buildmode=c-shared, this symbol is called when the shared // When building with -buildmode=c-shared, this symbol is called when the shared
// library is loaded. // library is loaded.