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ARM64: Restore fp before sp in C stack unwinders.

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Thanks to Peter Cawley. #1096
This commit is contained in:
Mike Pall
2023-10-08 21:17:43 +02:00
parent becf5cc65d
commit 007e4dce13
2 changed files with 5 additions and 2 deletions
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4
src/vm_arm64.dasc
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@@ -430,6 +430,7 @@ static void build_subroutines(BuildCtx *ctx)
|
|->vm_unwind_c: // Unwind C stack, return from vm_pcall.
| // (void *cframe, int errcode)
| add fp, CARG1, # SAVE_FP_LR_
| mov sp, CARG1
| mov CRET1, CARG2
| ldr L, SAVE_L
@@ -441,7 +442,8 @@ static void build_subroutines(BuildCtx *ctx)
|
|->vm_unwind_ff: // Unwind C stack, return from ff pcall.
| // (void *cframe)
| and sp, CARG1, #CFRAME_RAWMASK
| add fp, CARG1, # SAVE_FP_LR_
| mov sp, CARG1
| ldr L, SAVE_L
| movz TISNUM, #(LJ_TISNUM>>1)&0xffff, lsl #48
| movz TISNUMhi, #(LJ_TISNUM>>1)&0xffff, lsl #16