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[dev.ssa] cmd/compile: provide stack trace for caught panics

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Change-Id: I9cbb6d53a8c2302222b13d2f33b081b704208b8a
Reviewed-on: https://go-review.googlesource.com/12932
Reviewed-by: Keith Randall <khr@golang.org>
Reviewed-by: Todd Neal <todd@tneal.org>
This commit is contained in:
Josh Bleecher Snyder 2015-07-30 10:28:57 -07:00
parent 6d9362a1f7
commit 165c1c16d1
1 changed files with 9 additions and 2 deletions
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11
src/cmd/compile/internal/ssa/compile.go
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@ -4,7 +4,10 @@
package ssa
import "log"
import (
"log"
"runtime"
)
// Compile is the main entry point for this package.
// Compile modifies f so that on return:
@ -21,7 +24,11 @@ func Compile(f *Func) {
phaseName := "init"
defer func() {
if phaseName != "" {
f.Fatalf("panic during %s while compiling %s\n", phaseName, f.Name)
err := recover()
stack := make([]byte, 16384)
n := runtime.Stack(stack, false)
stack = stack[:n]
f.Fatalf("panic during %s while compiling %s:\n\n%v\n\n%s\n", phaseName, f.Name, err, stack)
}
}()