mirror of
https://github.com/golang/go
synced 2024-10-04 02:31:22 -06:00
de1ab89f03
Since CL 115060044, mkanames declares an empty array in anames8.c and anames6.c, which is not valid for the Plan 9 compiler. char* cnames8[] = { }; This change makes mkanames not declaring the cnames array when no C_ constants are found. LGTM=iant R=minux, iant CC=golang-codereviews https://golang.org/cl/117680043
138 lines
3.0 KiB
C
138 lines
3.0 KiB
C
// Copyright 2012 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.
|
|
|
|
#include "a.h"
|
|
|
|
/*
|
|
* Helpers for building cmd/gc.
|
|
*/
|
|
|
|
// gcopnames creates opnames.h from go.h.
|
|
// It finds the OXXX enum, pulls out all the constants
|
|
// from OXXX to OEND, and writes a table mapping
|
|
// op to string.
|
|
void
|
|
gcopnames(char *dir, char *file)
|
|
{
|
|
char *p, *q;
|
|
int i, j, end;
|
|
Buf in, b, out;
|
|
Vec lines, fields;
|
|
|
|
binit(&in);
|
|
binit(&b);
|
|
binit(&out);
|
|
vinit(&lines);
|
|
vinit(&fields);
|
|
|
|
bwritestr(&out, bprintf(&b, "// auto generated by go tool dist\n"));
|
|
bwritestr(&out, bprintf(&b, "static char *opnames[] = {\n"));
|
|
|
|
readfile(&in, bprintf(&b, "%s/go.h", dir));
|
|
splitlines(&lines, bstr(&in));
|
|
i = 0;
|
|
while(i<lines.len && !contains(lines.p[i], "OXXX"))
|
|
i++;
|
|
end = 0;
|
|
for(; i<lines.len && !end; i++) {
|
|
p = xstrstr(lines.p[i], "//");
|
|
if(p != nil)
|
|
*p = '\0';
|
|
end = contains(lines.p[i], "OEND");
|
|
splitfields(&fields, lines.p[i]);
|
|
for(j=0; j<fields.len; j++) {
|
|
q = fields.p[j];
|
|
if(*q == 'O')
|
|
q++;
|
|
p = q+xstrlen(q)-1;
|
|
if(*p == ',')
|
|
*p = '\0';
|
|
bwritestr(&out, bprintf(&b, " [O%s] = \"%s\",\n", q, q));
|
|
}
|
|
}
|
|
|
|
bwritestr(&out, bprintf(&b, "};\n"));
|
|
|
|
writefile(&out, file, 0);
|
|
|
|
bfree(&in);
|
|
bfree(&b);
|
|
bfree(&out);
|
|
vfree(&lines);
|
|
vfree(&fields);
|
|
}
|
|
|
|
// mkanames reads [568].out.h and writes anames[568].c
|
|
// The format is much the same as the Go opcodes above.
|
|
// it also writes out cnames array for C_* constants.
|
|
void
|
|
mkanames(char *dir, char *file)
|
|
{
|
|
int i, j, ch;
|
|
Buf in, b, out, out2;
|
|
Vec lines;
|
|
char *p;
|
|
|
|
binit(&b);
|
|
binit(&in);
|
|
binit(&out);
|
|
binit(&out2);
|
|
vinit(&lines);
|
|
|
|
ch = file[xstrlen(file)-3];
|
|
bprintf(&b, "%s/../cmd/%cl/%c.out.h", dir, ch, ch);
|
|
readfile(&in, bstr(&b));
|
|
splitlines(&lines, bstr(&in));
|
|
|
|
// Include link.h so that the extern declaration there is
|
|
// checked against the non-extern declaration we are generating.
|
|
bwritestr(&out, bprintf(&b, "#include <u.h>\n"));
|
|
bwritestr(&out, bprintf(&b, "#include <libc.h>\n"));
|
|
bwritestr(&out, bprintf(&b, "#include <bio.h>\n"));
|
|
bwritestr(&out, bprintf(&b, "#include <link.h>\n"));
|
|
bwritestr(&out, bprintf(&b, "\n"));
|
|
|
|
bwritestr(&out, bprintf(&b, "char* anames%c[] = {\n", ch));
|
|
for(i=0; i<lines.len; i++) {
|
|
if(hasprefix(lines.p[i], "\tA")) {
|
|
p = xstrstr(lines.p[i], ",");
|
|
if(p)
|
|
*p = '\0';
|
|
p = xstrstr(lines.p[i], "\n");
|
|
if(p)
|
|
*p = '\0';
|
|
p = lines.p[i] + 2;
|
|
bwritestr(&out, bprintf(&b, "\t\"%s\",\n", p));
|
|
}
|
|
}
|
|
bwritestr(&out, "};\n");
|
|
|
|
j=0;
|
|
bprintf(&out2, "char* cnames%c[] = {\n", ch);
|
|
for(i=0; i<lines.len; i++) {
|
|
if(hasprefix(lines.p[i], "\tC_")) {
|
|
p = xstrstr(lines.p[i], ",");
|
|
if(p)
|
|
*p = '\0';
|
|
p = xstrstr(lines.p[i], "\n");
|
|
if(p)
|
|
*p = '\0';
|
|
p = lines.p[i] + 3;
|
|
bwritestr(&out2, bprintf(&b, "\t\"%s\",\n", p));
|
|
j++;
|
|
}
|
|
}
|
|
bwritestr(&out2, "};\n");
|
|
if(j>0)
|
|
bwriteb(&out, &out2);
|
|
|
|
writefile(&out, file, 0);
|
|
|
|
bfree(&b);
|
|
bfree(&in);
|
|
bfree(&out);
|
|
bfree(&out2);
|
|
vfree(&lines);
|
|
}
|