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autolib (#pragma lib)

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added to 6g to autoload
the included import files.

SVN=124759
This commit is contained in:
Ken Thompson 2008-06-25 20:22:10 -07:00
parent 3311e1b673
commit e90ae879d6
3 changed files with 16 additions and 5 deletions
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1
src/cmd/6g/gen.c
View File

@ -28,7 +28,6 @@ compile(Node *fn)
return;
lno = dynlineno;
curfn = fn;
dynlineno = curfn->lineno; // for diagnostics
dowidth(curfn->type);

4
src/cmd/gc/lex.c
View File

@ -118,7 +118,8 @@ importfile(Val *f)
yyerror("import statement not a string");
return;
}
// BOTCH need to get .8 from backend
// BOTCH need to get .6 from backend
snprint(namebuf, sizeof(namebuf), "%Z.6", f->sval);
file = strdup(namebuf);
linehist(file, 0);
@ -126,6 +127,7 @@ importfile(Val *f)
imp = Bopen(file, OREAD);
if(imp == nil)
fatal("cant open import: %s", namebuf);
linehist(file, -1); // acts as #pragma lib
/*
* position the input right

16
src/cmd/gc/subr.c
View File

@ -64,13 +64,23 @@ void
linehist(char *file, long off)
{
Hist *h;
char *cp;
if(debug['i'])
if(file != nil)
print("%L: import %s\n", file);
else
if(file != nil) {
if(off < 0)
print("%L: pragma %s\n", file);
else
print("%L: import %s\n", file);
} else
print("%L: <eof>\n");
if(off < 0 && file[0] != '/') {
cp = mal(strlen(file) + strlen(pathname) + 2);
sprint(cp, "%s/%s", pathname, file);
file = cp;
}
h = alloc(sizeof(Hist));
h->name = file;
h->line = lineno;