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https://github.com/golang/go
synced 2024-11-21 23:34:42 -07:00
runtime: make goc2c build on Plan 9
pkg/runtime/Makefile: . Adjusted so "goc2c.c" is built using the Plan 9 libraries. pkg/runtime/goc2c.c: . Added/subtracted #include headers to correspond to Plan 9 toolkit. . Changed fprintf(stderr,...)/exit() combinations to sysfatal() calls, adjusted the "%u" format to "%ud". . Added exits(0) at the end of main(). . Made main() a void-returning function and removed the "return 0" at the end of it. Tested on UBUNTU and Plan 9 only. R=r, rsc CC=golang-dev https://golang.org/cl/4626093
This commit is contained in:
Lucio De Re
Russ Cox
parent
025abd530e
commit
b546f50716
@ -120,7 +120,7 @@ $(GOARCH)/asm.h: mkasmh.sh runtime.acid.$(GOARCH)
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mv -f $@.x $@
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goc2c: goc2c.c
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quietgcc -o $@ $<
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quietgcc -o $@ -I "$(GOROOT)/include" $< "$(GOROOT)/lib/lib9.a"
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mkversion: mkversion.c
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quietgcc -o $@ -I "$(GOROOT)/include" $< "$(GOROOT)/lib/lib9.a"
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@ -2,26 +2,27 @@
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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/* Translate a .goc file into a .c file. A .goc file is a combination
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of a limited form of Go with C. */
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/*
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* Translate a .goc file into a .c file. A .goc file is a combination
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* of a limited form of Go with C.
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*/
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/*
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package PACKAGENAME
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{# line}
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func NAME([NAME TYPE { , NAME TYPE }]) [(NAME TYPE { , NAME TYPE })] \{
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C code with proper brace nesting
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\}
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package PACKAGENAME
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{# line}
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func NAME([NAME TYPE { , NAME TYPE }]) [(NAME TYPE { , NAME TYPE })] \{
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C code with proper brace nesting
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\}
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*/
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/* We generate C code which implements the function such that it can
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be called from Go and executes the C code. */
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/*
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* We generate C code which implements the function such that it can
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* be called from Go and executes the C code.
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*/
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#include <assert.h>
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#include <ctype.h>
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#include <u.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <errno.h>
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#include <libc.h>
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/* Whether we're emitting for gcc */
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static int gcc;
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@ -88,16 +89,14 @@ int structround = 4;
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static void
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bad_eof(void)
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{
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fprintf(stderr, "%s:%u: unexpected EOF\n", file, lineno);
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exit(1);
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sysfatal("%s:%ud: unexpected EOF\n", file, lineno);
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}
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/* Out of memory. */
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static void
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bad_mem(void)
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{
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fprintf(stderr, "%s:%u: out of memory\n", file, lineno);
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exit(1);
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sysfatal("%s:%ud: out of memory\n", file, lineno);
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}
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/* Allocate memory without fail. */
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@ -196,8 +195,10 @@ getchar_skipping_comments(void)
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}
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}
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/* Read and return a token. Tokens are delimited by whitespace or by
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[(),{}]. The latter are all returned as single characters. */
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/*
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* Read and return a token. Tokens are delimited by whitespace or by
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* [(),{}]. The latter are all returned as single characters.
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*/
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static char *
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read_token(void)
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{
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@ -259,11 +260,11 @@ read_package(void)
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char *token;
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token = read_token_no_eof();
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if (token == nil)
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sysfatal("%s:%ud: no token\n", file, lineno);
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if (strcmp(token, "package") != 0) {
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fprintf(stderr,
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"%s:%u: expected \"package\", got \"%s\"\n",
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sysfatal("%s:%ud: expected \"package\", got \"%s\"\n",
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file, lineno, token);
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exit(1);
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}
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return read_token_no_eof();
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}
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@ -290,8 +291,10 @@ read_preprocessor_lines(void)
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}
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}
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/* Read a type in Go syntax and return a type in C syntax. We only
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permit basic types and pointers. */
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/*
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* Read a type in Go syntax and return a type in C syntax. We only
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* permit basic types and pointers.
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*/
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static char *
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read_type(void)
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{
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@ -333,13 +336,14 @@ type_size(char *p)
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for(i=0; type_table[i].name; i++)
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if(strcmp(type_table[i].name, p) == 0)
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return type_table[i].size;
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fprintf(stderr, "%s:%u: unknown type %s\n", file, lineno, p);
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exit(1);
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sysfatal("%s:%ud: unknown type %s\n", file, lineno, p);
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return 0;
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}
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/* Read a list of parameters. Each parameter is a name and a type.
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The list ends with a ')'. We have already read the '('. */
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/*
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* Read a list of parameters. Each parameter is a name and a type.
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* The list ends with a ')'. We have already read the '('.
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*/
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static struct params *
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read_params(int *poffset)
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{
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@ -375,17 +379,18 @@ read_params(int *poffset)
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}
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}
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if (strcmp(token, ")") != 0) {
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fprintf(stderr, "%s:%u: expected '('\n",
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sysfatal("%s:%ud: expected '('\n",
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file, lineno);
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exit(1);
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}
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if (poffset != NULL)
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*poffset = offset;
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return ret;
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}
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/* Read a function header. This reads up to and including the initial
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'{' character. Returns 1 if it read a header, 0 at EOF. */
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/*
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* Read a function header. This reads up to and including the initial
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* '{' character. Returns 1 if it read a header, 0 at EOF.
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*/
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static int
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read_func_header(char **name, struct params **params, int *paramwid, struct params **rets)
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{
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@ -416,9 +421,8 @@ read_func_header(char **name, struct params **params, int *paramwid, struct para
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token = read_token();
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if (token == NULL || strcmp(token, "(") != 0) {
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fprintf(stderr, "%s:%u: expected \"(\"\n",
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sysfatal("%s:%ud: expected \"(\"\n",
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file, lineno);
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exit(1);
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}
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*params = read_params(paramwid);
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@ -430,9 +434,8 @@ read_func_header(char **name, struct params **params, int *paramwid, struct para
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token = read_token();
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}
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if (token == NULL || strcmp(token, "{") != 0) {
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fprintf(stderr, "%s:%u: expected \"{\"\n",
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sysfatal("%s:%ud: expected \"{\"\n",
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file, lineno);
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exit(1);
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}
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return 1;
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}
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@ -581,8 +584,10 @@ write_func_trailer(char *package, char *name,
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write_6g_func_trailer(rets);
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}
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/* Read and write the body of the function, ending in an unnested }
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(which is read but not written). */
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/*
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* Read and write the body of the function, ending in an unnested }
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* (which is read but not written).
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*/
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static void
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copy_body(void)
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{
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@ -669,15 +674,15 @@ process_file(void)
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static void
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usage(void)
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{
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fprintf(stderr, "Usage: goc2c [--6g | --gc] [file]\n");
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exit(1);
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sysfatal("Usage: goc2c [--6g | --gc] [file]\n");
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}
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int
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void
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main(int argc, char **argv)
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{
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char *goarch;
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argv0 = argv[0];
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while(argc > 1 && argv[1][0] == '-') {
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if(strcmp(argv[1], "-") == 0)
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break;
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@ -694,7 +699,7 @@ main(int argc, char **argv)
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if(argc <= 1 || strcmp(argv[1], "-") == 0) {
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file = "<stdin>";
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process_file();
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return 0;
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exits(0);
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}
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if(argc > 2)
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@ -702,8 +707,7 @@ main(int argc, char **argv)
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file = argv[1];
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if(freopen(file, "r", stdin) == 0) {
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fprintf(stderr, "open %s: %s\n", file, strerror(errno));
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exit(1);
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sysfatal("open %s: %r\n", file);
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}
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if(!gcc) {
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@ -719,5 +723,5 @@ main(int argc, char **argv)
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}
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process_file();
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return 0;
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exits(0);
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}
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