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cmd/objdump: actually accept hex address without "0x" prefix.

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Fixes #7936.

LGTM=alex.brainman, bradfitz, iant
R=golang-codereviews, alex.brainman, bradfitz, iant
CC=golang-codereviews
https://golang.org/cl/100060043
This commit is contained in:
Shenghou Ma 2014-05-08 01:25:56 -04:00
parent f5a4d241cd
commit 5139293986
1 changed files with 5 additions and 4 deletions
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9
src/cmd/objdump/main.go
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@ -10,7 +10,7 @@
//
// Objdump disassembles the binary starting at the start address and
// stopping at the end address. The start and end addresses are program
// counters written in hexadecimal without a leading 0x prefix.
// counters written in hexadecimal with optional leading 0x prefix.
//
// It prints a sequence of stanzas of the form:
//
@ -40,12 +40,13 @@ import (
"log"
"os"
"strconv"
"strings"
)
func printUsage(w *os.File) {
fmt.Fprintf(w, "usage: objdump binary start end\n")
fmt.Fprintf(w, "disassembles binary from start PC to end PC.\n")
fmt.Fprintf(w, "start and end are hexadecimal numbers with no 0x prefix.\n")
fmt.Fprintf(w, "start and end are hexadecimal numbers with optional leading 0x prefix.\n")
}
func usage() {
@ -79,11 +80,11 @@ func main() {
log.Fatalf("reading %s: %v", flag.Arg(0), err)
}
start, err := strconv.ParseUint(flag.Arg(1), 0, 64)
start, err := strconv.ParseUint(strings.TrimPrefix(flag.Arg(1), "0x"), 16, 64)
if err != nil {
log.Fatalf("invalid start PC: %v", err)
}
end, err := strconv.ParseUint(flag.Arg(2), 0, 64)
end, err := strconv.ParseUint(strings.TrimPrefix(flag.Arg(2), "0x"), 16, 64)
if err != nil {
log.Fatalf("invalid end PC: %v", err)
}