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cmd/cgo: fix so that tests pass again when using gccgo

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Use the symbol prefixes with the prologue functions when using
gccgo.

Use an & when referring to a function declared as a variable.

Fix the malloc prologue function.

R=golang-dev, rsc
CC=golang-dev
https://golang.org/cl/13878043
This commit is contained in:
Ian Lance Taylor 2013-09-24 18:11:13 -07:00
parent e2e9d1d684
commit 935a826a2f
1 changed files with 16 additions and 12 deletions
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28
src/cmd/cgo/out.go
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@ -87,7 +87,7 @@ func (p *Package) writeDefs() {
}
if *gccgo {
fmt.Fprintf(fc, cPrologGccgo)
fmt.Fprintf(fc, p.cPrologGccgo())
} else {
fmt.Fprintf(fc, cProlog)
}
@ -120,6 +120,9 @@ func (p *Package) writeDefs() {
node = &ast.StarExpr{X: n.Type.Go}
} else if n.Kind == "fpvar" {
node = n.Type.Go
if *gccgo {
amp = "&"
}
} else {
panic(fmt.Errorf("invalid var kind %q", n.Kind))
}
@ -380,11 +383,7 @@ func (p *Package) writeDefsFunc(fc, fgo2 *os.File, n *Name) {
fmt.Fprint(fgo2, "}\n")
// declare the C function.
if inProlog {
fmt.Fprintf(fgo2, "//extern %s\n", n.C)
} else {
fmt.Fprintf(fgo2, "//extern _cgo%s%s\n", cPrefix, n.Mangle)
}
fmt.Fprintf(fgo2, "//extern _cgo%s%s\n", cPrefix, n.Mangle)
d.Name = ast.NewIdent(cname)
if n.AddError {
l := d.Type.Results.List
@ -1193,8 +1192,13 @@ void
}
`
func (p *Package) cPrologGccgo() string {
return strings.Replace(cPrologGccgo, "PREFIX", cPrefix, -1)
}
const cPrologGccgo = `
#include <stdint.h>
#include <stdlib.h>
#include <string.h>
typedef unsigned char byte;
@ -1214,26 +1218,26 @@ typedef struct __go_open_array {
struct __go_string __go_byte_array_to_string(const void* p, intgo len);
struct __go_open_array __go_string_to_byte_array (struct __go_string str);
const char *CString(struct __go_string s) {
const char *_cgoPREFIX_Cfunc_CString(struct __go_string s) {
return strndup((const char*)s.__data, s.__length);
}
struct __go_string GoString(char *p) {
struct __go_string _cgoPREFIX_Cfunc_GoString(char *p) {
intgo len = (p != NULL) ? strlen(p) : 0;
return __go_byte_array_to_string(p, len);
}
struct __go_string GoStringN(char *p, int32_t n) {
struct __go_string _cgoPREFIX_Cfunc_GoStringN(char *p, int32_t n) {
return __go_byte_array_to_string(p, n);
}
Slice GoBytes(char *p, int32_t n) {
Slice _cgoPREFIX_Cfunc_GoBytes(char *p, int32_t n) {
struct __go_string s = { (const unsigned char *)p, n };
return __go_string_to_byte_array(s);
}
extern void runtime_throw(const char *):
void *Cmalloc(size_t n) {
extern void runtime_throw(const char *);
void *_cgoPREFIX_Cfunc__CMalloc(size_t n) {
void *p = malloc(n);
if(p == NULL && n == 0)
p = malloc(1);