cmd/ld: gdb information is wrong when using cgo #5719
Description
by huangmipi:
What is the expected output?
Right variable's value in GDB breakpoint.
What do you see instead?
Wrong variable's value in GDB breakpoint.
Which compiler are you using (5g, 6g, 8g, gccgo)?
go build test.go
Which operating system are you using?
ubuntu 11.04 i386
gdb 7.6
Which version are you using? (run 'go version')
go 1.1
example files:
================================
src/test.go
------------------------
package main
import (
. "clib"
)
func main() {
a := "123";
b := "456";
c := "789";
println(a,b,c);
Output("ABC");
}
------------------------
src/clib/clib.h
------------------------
#ifndef CLIB
void output(char* str);
#endif
------------------------
src/clib/clib.c
------------------------
#include "clib.h"
#include <stdio.h>
void output(char* str)
{
printf("%s\n", str);
}
------------------------
src/clib/clib.go
------------------------
package clib
/*
#cgo CFLAGS:-g
#include "clib.h"
*/
import "C"
func Output(s string) {
p := C.CString(s);
C.output(p);
}
================================
go build -gcflags "-N -l" test.go
gdb ./test
b 10
r
info locals // <- every variable's value is wrong!