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cmd/compile: dump stack trace in Fatalf during development

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See discussion in #15029.

Change-Id: I5cc8be5737ddb7c1f5e4a6cd92cf557af45e961d
Reviewed-on: https://go-review.googlesource.com/21347
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
This commit is contained in:
Josh Bleecher Snyder 2016-03-31 09:29:32 -07:00
parent 43a274fd67
commit 00289c296c
1 changed files with 6 additions and 0 deletions
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6
src/cmd/compile/internal/gc/subr.go
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@ -11,6 +11,7 @@ import (
"encoding/binary" "encoding/binary"
"fmt" "fmt"
"os" "os"
"runtime/debug"
"sort" "sort"
"strconv" "strconv"
"strings" "strings"
@ -151,6 +152,11 @@ func Fatalf(fmt_ string, args ...interface{}) {
fmt.Printf("\n") fmt.Printf("\n")
fmt.Printf("Please file a bug report including a short program that triggers the error.\n") fmt.Printf("Please file a bug report including a short program that triggers the error.\n")
fmt.Printf("https://golang.org/issue/new\n") fmt.Printf("https://golang.org/issue/new\n")
} else {
// Not a release; dump a stack trace, too.
fmt.Println()
os.Stdout.Write(debug.Stack())
fmt.Println()
} }
hcrash() hcrash()