gcc/libgo/runtime/go-caller.c
Ian Lance Taylor 7a9389330e Add Go frontend, libgo library, and Go testsuite.
gcc/:
	* gcc.c (default_compilers): Add entry for ".go".
	* common.opt: Add -static-libgo as a driver option.
	* doc/install.texi (Configuration): Mention libgo as an option for
	--enable-shared.  Mention go as an option for --enable-languages.
	* doc/invoke.texi (Overall Options): Mention .go as a file name
	suffix.  Mention go as a -x option.
	* doc/frontends.texi (G++ and GCC): Mention Go as a supported
	language.
	* doc/sourcebuild.texi (Top Level): Mention libgo.
	* doc/standards.texi (Standards): Add section on Go language.
	Move references for other languages into their own section.
	* doc/contrib.texi (Contributors): Mention that I contributed the
	Go frontend.
gcc/testsuite/:
	* lib/go.exp: New file.
	* lib/go-dg.exp: New file.
	* lib/go-torture.exp: New file.
	* lib/target-supports.exp (check_compile): Match // Go.

From-SVN: r167407
2010-12-03 04:34:57 +00:00

52 lines
1.0 KiB
C

/* go-caller.c -- runtime.Caller and runtime.FuncForPC for Go.
Copyright 2009 The Go Authors. All rights reserved.
Use of this source code is governed by a BSD-style
license that can be found in the LICENSE file. */
/* Implement runtime.Caller. */
#include <stdint.h>
#include "go-string.h"
/* The values returned by runtime.Caller. */
struct caller_ret
{
uintptr_t pc;
struct __go_string file;
int line;
_Bool ok;
};
/* Implement runtime.Caller. */
struct caller_ret Caller (int n) asm ("libgo_runtime.runtime.Caller");
struct caller_ret
Caller (int n __attribute__ ((unused)))
{
struct caller_ret ret;
/* A proper implementation needs to dig through the debugging
information. */
ret.pc = (uint64_t) (uintptr_t) __builtin_return_address (1);
ret.file.__data = NULL;
ret.file.__length = 0;
ret.line = 0;
ret.ok = 0;
return ret;
}
/* Implement runtime.FuncForPC. */
void *FuncForPC (uintptr_t) asm ("libgo_runtime.runtime.FuncForPC");
void *
FuncForPC(uintptr_t pc __attribute__ ((unused)))
{
return NULL;
}