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fix(verify): arm64 stack save, adaptive canary and host gating

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Assisted-by: GLM 5.3
This commit is contained in:
petrbalvin
2026-09-19 23:49:19 +02:00
parent 87b1081c53
commit 375182ef1f
25 changed files with 651 additions and 57 deletions
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verify/abi_arm64.s
+5 -3
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@@ -36,7 +36,8 @@ DATA ·leaveCheckedPtr(SB)/8, $·leaveJITCheckedRaw(SB)
TEXT ·enterJITChecked(SB), NOSPLIT, $0-16
MOVD fn+0(FP), R0 // target (before SP switch)
MOVD R30, savedLR(SB) // save link register
MOVD R3, savedSP(SB) // save Go stack pointer
MOVD RSP, R3 // save Go stack pointer: R3 relays the value, the
MOVD R3, savedSP(SB) // arm64 assembler cannot store RSP to memory
MOVD R29, savedFP(SB) // save frame pointer (vet requires save before clobber)
MOVD g, savedG(SB) // save g
MOVD $SENTINEL_FP, R29 // sentinel in the frame pointer
@@ -85,8 +86,9 @@ restore:
// Package-level storage for the saved frame pointer. Like savedSP and
// savedLR in trampoline_arm64.s, this is assembly-side state: the amd64
// checked trampoline saves the caller's frame pointer for vet's sake and
// never restores it, and this file mirrors that.
// checked trampoline saves and restores the caller's frame pointer too
// (leaveJITCheckedRaw restores BP before returning), and this file mirrors
// that.
GLOBL savedFP(SB), NOPTR, $8
GLOBL savedG(SB), NOPTR, $8