Hojun-Cho
1657bdeda3
C bootstrap (phases 0-9):
cmd/wwc, cmd/6c, cmd/6a, cmd/6l, cmd/ww, rt, lib/*.
ww-side self-host (phase 10):
selfhost/cmd/wwc — ww-cgen frontend; bootstrap fixed point.
selfhost/cmd/6a — assembler; byte-identical to C 6a (test 991).
selfhost/cmd/6l — linker w/ archive (.a) support; byte-identical
to C 6l (test 992).
selfhost/cmd/ww — driver (build/run/version); byte-identical to
C ww (test 993).
make test: 15/15. make bootstrap: ww2.s == ww3.s, ww2.o == ww3.o,
ww2 == ww3 byte-identical, with the full ww-tooled chain.
77 lines
1.2 KiB
C
77 lines
1.2 KiB
C
/*
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* err.c — diagnostics.
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*
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* fatal prints, sets exit(1).
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* errorf prints with source location, increments nerrors.
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* warnf prints with source location, increments nwarnings.
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*
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* Plan 9 style: short, no levels beyond fatal/error/warn, no colour.
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*/
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#include "ww.h"
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#include <stdlib.h>
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#include <string.h>
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Pos noPos = { "<none>", 0, 0 };
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int nerrors;
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int nwarnings;
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FILE *errout; /* set by main; defaults to stderr */
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static FILE *
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out(void)
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{
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return errout ? errout : stderr;
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}
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static void
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prefix(Pos p)
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{
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FILE *f = out();
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if (p.file == NULL)
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p = noPos;
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if (p.line > 0)
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fprintf(f, "%s:%d:%d: ", p.file, p.line, p.col);
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else
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fprintf(f, "%s: ", p.file);
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}
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void
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fatal(const char *fmt, ...)
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{
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FILE *f = out();
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va_list ap;
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fprintf(f, "ww: ");
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va_start(ap, fmt);
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vfprintf(f, fmt, ap);
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va_end(ap);
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fprintf(f, "\n");
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exit(1);
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}
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void
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errorf(Pos p, const char *fmt, ...)
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{
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FILE *f = out();
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va_list ap;
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prefix(p);
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fprintf(f, "error: ");
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va_start(ap, fmt);
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vfprintf(f, fmt, ap);
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va_end(ap);
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fprintf(f, "\n");
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nerrors++;
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}
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void
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warnf(Pos p, const char *fmt, ...)
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{
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FILE *f = out();
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va_list ap;
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prefix(p);
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fprintf(f, "warning: ");
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va_start(ap, fmt);
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vfprintf(f, fmt, ap);
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va_end(ap);
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fprintf(f, "\n");
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nwarnings++;
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}
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