Files
ww/test/wcc/600_w6l.c
Hojun-Cho 7b9488706b parse: enforce strict-package — reject package-less files (#24a)
Flip the soft-default to a hard "missing package clause" error symmetrically in
both stages (cmd/wcc/parse.c + lib/ww/syntax/parse.ww): the first real decl of a
primary section with empty pathmod/resetmod and no seen clause is now rejected.
Closes the documented soft-default divergence (the 63-wrapper carve-out).

The gate flip can't be split from the migration it breaks, so this is one atomic
commit: ~80 test/wcc wrappers gain `package main;` via a shared wwtestpkg.h
helper, 6 data fixtures plus 17 asm-grep assertions update for the bare->main.<leaf>
root-helper mangle shift, and rt/ declares `package rt;` with @symbol pinning the
bare rt_ensure/rt_malloc linker names.

Root mangling narrows: the executable entry `main` stays bare (existing
carve-out), but root helper symbols become main.X. The #84 cluster is rewritten
to assert main.run distinct from aa.run/test.run; its cgen fix and bare machinery
are retained — still load-bearing for package-less module-reset deps. New
table-driven test 782_strict_package.c (6 rows, both stages).

Retiring //ww:module-reset is deferred to #24b: it is load-bearing (clears the
.wwi pathmod so the body's package clause asserts), not a vestige; fusing its
removal here would be a silent mismatch.

All byte-id gates green; full make test reports "all 335 tests passed".
2026-06-29 03:55:26 +09:00

69 lines
2.3 KiB
C

/*
* 600_6l — linker smoke. Drive w6c → w6a → w6l on a tiny program,
* confirm the result is a static ELF executable with no PT_INTERP.
*/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include "wwtestpkg.h"
int
main(void)
{
const char *bin = getenv("BIN");
if (!bin) bin = "out/bin";
char src[64], asmf[64], obj[64], exe[64];
snprintf(src, sizeof src, "/tmp/wwt_%d.ww", getpid());
snprintf(asmf, sizeof asmf, "/tmp/wwt_%d.s", getpid());
snprintf(obj, sizeof obj, "/tmp/wwt_%d.o", getpid());
snprintf(exe, sizeof exe, "/tmp/wwt_%d.x", getpid());
FILE *f = fopen(src, "wb");
wwtest_fputs("fn main() i32 = { return 42; };", f);
fclose(f);
char cmd[1024];
snprintf(cmd, sizeof cmd, "%s/w6c -o %s %s", bin, asmf, src);
if (system(cmd) != 0) { fprintf(stderr, "w6c failed\n"); return 1; }
snprintf(cmd, sizeof cmd, "%s/w6a -o %s %s", bin, obj, asmf);
if (system(cmd) != 0) { fprintf(stderr, "w6a failed\n"); return 1; }
snprintf(cmd, sizeof cmd, "%s/w6l -o %s %s", bin, exe, obj);
if (system(cmd) != 0) { fprintf(stderr, "w6l failed\n"); return 1; }
/* validate ELF magic + e_type=EXEC */
FILE *of = fopen(exe, "rb");
if (of == NULL) { fprintf(stderr, "exe missing\n"); return 1; }
unsigned char hdr[20];
if (fread(hdr, 1, sizeof hdr, of) != sizeof hdr) { fprintf(stderr, "short exe\n"); fclose(of); return 1; }
fclose(of);
if (memcmp(hdr, "\x7f""ELF", 4) != 0 || hdr[4] != 2) {
fprintf(stderr, "not an ELF64\n"); return 1;
}
/* e_type at offset 16, little-endian u16; ET_EXEC = 2 */
unsigned short etype = (unsigned short)hdr[16] | ((unsigned short)hdr[17] << 8);
if (etype != 2) {
fprintf(stderr, "not ET_EXEC, got %u\n", etype); return 1;
}
/* ldd "not a dynamic executable" — proxy: check that file is not
* dynamic by looking for PT_INTERP. We have none, so ldd reports
* "not a dynamic executable" or similar. */
snprintf(cmd, sizeof cmd, "ldd %s 2>&1", exe);
FILE *p = popen(cmd, "r");
char buf[256] = {0};
fread(buf, 1, sizeof buf - 1, p);
pclose(p);
if (strstr(buf, "not a dynamic executable") == NULL
&& strstr(buf, "statically linked") == NULL) {
fprintf(stderr, "ldd says not static: %s\n", buf);
return 1;
}
unlink(src); unlink(asmf); unlink(obj); unlink(exe);
printf("w6l: ok\n");
return 0;
}