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.
81 lines
1.9 KiB
C
81 lines
1.9 KiB
C
/*
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* 800_ffi — verify the @symbol("X") attribute redirects CALLs at
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* the codegen layer. The ww source declares a body-less fn with an
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* external symbol name, calls it; the emitted .s must reference the
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* external name, not the ww-side ident.
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*
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* Also smoke-tests building lib/c/libc/libc.ww (parse + check + cgen
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* succeed; nothing to run).
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*/
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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 <unistd.h>
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static char *
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run6c(const char *bin, const char *src)
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{
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char path[64];
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snprintf(path, sizeof path, "/tmp/wwffi_%d.ww", getpid());
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FILE *f = fopen(path, "wb");
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fputs(src, f);
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fclose(f);
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char cmd[512];
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snprintf(cmd, sizeof cmd, "%s/6c %s 2>&1", bin, path);
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FILE *p = popen(cmd, "r");
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size_t cap = 4096, n = 0;
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char *buf = malloc(cap);
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int c;
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while ((c = fgetc(p)) != EOF) {
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if (n + 1 >= cap) { cap *= 2; buf = realloc(buf, cap); }
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buf[n++] = (char)c;
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}
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buf[n] = '\0';
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pclose(p);
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unlink(path);
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return buf;
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}
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int
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main(void)
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{
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const char *bin = getenv("BIN");
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if (!bin) bin = "out/bin";
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int fail = 0;
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/* @symbol redirects ident name to symbol name */
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{
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char *out = run6c(bin,
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"@symbol(\"cout\") fn writeit(b: *u8, n: u64) i64;\n"
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"fn main() i32 = { writeit(nil, 0); return 0; };");
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if (strstr(out, "CALL\tcout(SB)") == NULL) {
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fprintf(stderr, "ffi: missing CALL cout(SB) in:\n%s\n", out);
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fail++;
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}
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if (strstr(out, "CALL\twriteit(SB)") != NULL) {
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fprintf(stderr, "ffi: should not call by ident name:\n%s\n", out);
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fail++;
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}
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free(out);
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}
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/* lib/c/libc parses + cgens (no defined fns means no TEXT directives) */
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{
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char path[256];
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snprintf(path, sizeof path, "%s/../../lib/c/libc/libc.ww", bin);
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char cmd[512];
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snprintf(cmd, sizeof cmd, "%s/6c %s > /dev/null 2>&1", bin, path);
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int rc = system(cmd);
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if (rc != 0) {
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fprintf(stderr, "ffi: 6c failed on libc.ww (rc=%d)\n", rc);
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fail++;
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}
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}
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if (fail) return 1;
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puts("ffi: ok");
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return 0;
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}
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