Hojun-Cho
a95a7a316b
Every surviving carrier now owns its artifacts: checked mkdir/mkdtemp/ fopen acquisition, one all-exit cleanup funnel per carrier, ENOENT- tolerant checked unlinks, exact-path deletion (rm -rf only for an owned pid-keyed dir or a .sepwork beneath one), and cleanup failure fails a passing carrier without overwriting its diagnostic. In the same pass the carriers adapt to the driver contract this branch lands: --sep and WW_PKGCACHE are gone, -S and the /tmp/ww_run_<pid> scratch contract are asserted, and rows whose runtime or reject coverage moved to test/wcc/data fixtures or test/lang @test owners are trimmed to the byte/artifact/diagnostic observations only they can make. Repair and adaptation ride together because most files interleave both in the same hunks; splitting would manufacture intermediate carrier states that never existed and cannot run against either driver.
280 lines
8.6 KiB
C
280 lines
8.6 KiB
C
/*
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* 951_defdim_struct_run — byte-id net for #141: a struct
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* field whose array dimension is a `def` (`[MAX]u8`, MAX a same-module
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* def), not an integer literal. BOTH stages were wrong, oppositely:
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*
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* cstage LOUD-rejected ("array length must be an integer literal").
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* resolve_type's N_TARRAY arm folded only N_INTLIT dims; a def-ref
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* fell through to the err. Root was a phase-ordering trap: def names
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* weren't bound in scope when resolve_typedecl walked the struct
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* body, so eval_def_const couldn't see MAX. Fix binds def-name stubs
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* before type-body resolution, then folds the dim via eval_def_const.
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*
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* wwstage SILENTLY mis-laid-out the struct. astsize sized the def-dim
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* field to 0 (only N_INTLIT dims were read), so the N_TSTRUCT
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* `off += astsize(field)` loop gave the NEXT field the array's offset
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* — the trailing scalar overlapped the array, reading/writing the
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* wrong bytes (ken pdefM4: end != written). Fix routes every N_TARRAY
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* length reader through a shared arrayelen() that folds the def.
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*
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* The TEETH row is the trailing scalar after the def-dim array: pre-fix
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* ww read a corrupted `end`; post-fix it round-trips and cs==ww byte-id.
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* Closes #13's def-dim half (the slice-repeat clause stays open).
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*
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* Runtime values live in r951_defdim_* fixtures. This carrier compares the
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* `ww build`-produced
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* .combined.ww, not the raw src: w6c does no import resolution, so the
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* cross-module row (C1, `import os`) only folds once concatenated, and a
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* same-module row combines to itself. The last row is the ACTUAL
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* path::buffer shape — a cross-module `os.PATH_MAX` def dimension (the
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* N_DOT fold arm). u8 array elements + i32 trailing scalars only (the
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* i32 return is MOVL/MOVSXD byte-id; see 949_dotbase_arr_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 <errno.h>
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#include <unistd.h>
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#include <sys/stat.h>
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#include <sys/wait.h>
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static int
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runwait(const char *cmd)
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{
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int rc = system(cmd);
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if (rc == -1) return -1;
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if (WIFEXITED(rc)) return WEXITSTATUS(rc);
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return -1;
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}
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struct row { const char *label; const char *src; };
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static const struct row rows[] = {
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/* TEETH: def-dim array FOLLOWED by a scalar; write both, read the
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* scalar back. Pre-fix ww laid `end` at the array's offset (array
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* sized 0) → end read garbage. Post-fix end at offset 4 → 42. */
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{ "m4_end",
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"package main;\n"
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"def M: i32 = 4;\n"
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"type t = struct { b: [M]u8, end: i32 };\n"
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"export fn main() i32 = {\n"
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" let s: t;\n"
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" s.b[3] = 9u8;\n"
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" s.end = 42;\n"
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" return s.end;\n"
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"};\n" },
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/* the array element itself must survive too — read the last byte
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* (pre-fix the overlapping `end` write would clobber it). */
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{ "m4_belem",
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"package main;\n"
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"def M: i32 = 4;\n"
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"type t = struct { b: [M]u8, end: i32 };\n"
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"export fn main() i32 = {\n"
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" let s: t;\n"
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" s.b[3] = 200u8;\n"
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" s.end = 7;\n"
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" return s.b[3]: i32;\n"
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"};\n" },
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/* the ~4KB path::buffer shape — def MAX=4095, read the trailing
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* scalar after a 4095-byte array. */
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{ "m4095_end",
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"package main;\n"
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"def MAX: i32 = 4095;\n"
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"type t = struct { b: [MAX]u8, end: i32 };\n"
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"export fn main() i32 = {\n"
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" let s: t;\n"
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" s.b[4094] = 5u8;\n"
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" s.end = 99;\n"
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" return s.end;\n"
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"};\n" },
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/* two scalars after the def-dim array — pins the cumulative offset
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* (a+c read their written values: 11+22=33). */
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{ "twoafter",
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"package main;\n"
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"def M: i32 = 4;\n"
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"type t = struct { b: [M]u8, a: i32, c: i32 };\n"
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"export fn main() i32 = {\n"
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" let s: t;\n"
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" s.a = 11;\n"
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" s.c = 22;\n"
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" return s.a + s.c;\n"
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"};\n" },
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/* C1 (rob-mandatory): the ACTUAL path::buffer shape — a CROSS-
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* MODULE def dimension. `def MAX = os.PATH_MAX - 1` folds an N_DOT
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* (os.PATH_MAX) const-ref through eval_def_const's cross-module arm,
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* which the same-module rows don't exercise. os.PATH_MAX is 4096, so
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* MAX is 4095. Byte-id runs on the ww-build combined.ww (w6c alone
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* does no import resolution, so it can't compile the raw `import os`
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* source). */
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{ "xmod_pathmax",
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"package main;\n"
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"import os;\n"
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"def MAX: i32 = os.PATH_MAX - 1;\n"
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"type t = struct { b: [MAX]u8, end: i32 };\n"
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"export fn main() i32 = {\n"
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" let s: t;\n"
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" s.b[4094] = 7u8;\n"
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" s.end = 77;\n"
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" return s.end;\n"
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"};\n" },
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{ NULL, NULL }
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};
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static int
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slurp_eq(const char *a, const char *b)
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{
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FILE *fa = fopen(a, "rb");
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FILE *fb = fopen(b, "rb");
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if (!fa || !fb) { if (fa) fclose(fa); if (fb) fclose(fb); return -1; }
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int rc = 0;
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for (;;) {
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int ca = fgetc(fa);
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int cb = fgetc(fb);
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if (ca != cb) { rc = -1; break; }
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if (ca == EOF) break;
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}
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fclose(fa); fclose(fb);
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return rc;
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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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char absbin[1024];
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if (bin[0] != '/') {
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char cwd[1024];
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if (getcwd(cwd, sizeof cwd) == NULL) return 1;
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snprintf(absbin, sizeof absbin, "%s/%s", cwd, bin);
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bin = absbin;
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}
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char wdrv[1100];
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snprintf(wdrv, sizeof wdrv, "%s/ww_ww", bin);
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if (access(wdrv, X_OK) != 0) {
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fprintf(stderr, "defdim_struct: ww_ww missing — cannot run "
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"the cs==ww byte-id gate (the whole point of this test)\n");
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return 1;
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}
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int n = 0, fail = 0;
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for (int i = 0; rows[i].src; i++, n++) {
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char src[64];
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snprintf(src, sizeof src, "/tmp/wwdds_%d_%d.ww", getpid(), i);
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FILE *f = fopen(src, "wb");
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if (f == NULL) { perror(src); fail++; continue; }
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fputs(rows[i].src, f);
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fclose(f);
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char tmpdir[64];
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snprintf(tmpdir, sizeof tmpdir, "/tmp/wwdds_%d_d_%d",
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getpid(), i);
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if (mkdir(tmpdir, 0755) != 0) {
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/* not owned — must not rm a path we failed to create */
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perror(tmpdir);
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fail++;
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if (unlink(src) != 0 && errno != ENOENT)
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perror(src);
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continue;
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}
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char base[64];
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const char *b = strrchr(src, '/');
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b = b ? b + 1 : src;
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snprintf(base, sizeof base, "%s", b);
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char *dot = strrchr(base, '.');
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if (dot && strcmp(dot, ".ww") == 0) *dot = '\0';
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/* #94 sep layout: each driver's build emits the runnable
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* binary at <stem> + per-package asm under <stem>.sepwork/.
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* Distinct stems so the wwstage sepwork doesn't clobber cstage's;
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* pin all outputs stay under tmpdir. A
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* cross-module row's `import os` resolves per-package, a same-
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* module row is just __root — both compare via the sorted glob. */
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char cmd[2048], stem_c[160], stem_w[160];
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snprintf(stem_c, sizeof stem_c, "%s/%s_c", tmpdir, base);
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snprintf(stem_w, sizeof stem_w, "%s/%s_w", tmpdir, base);
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char cs_s[64], ws_s[64];
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snprintf(cs_s, sizeof cs_s, "/tmp/wwdds_%d_%d_cs.s",
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getpid(), i);
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snprintf(ws_s, sizeof ws_s, "/tmp/wwdds_%d_%d_ww.s",
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getpid(), i);
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snprintf(cmd, sizeof cmd,
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"cd %s && %s/ww build -S -o %s %s",
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tmpdir, bin, stem_c, src);
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if (runwait(cmd) != 0) {
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fprintf(stderr, "row[%s]: cstage build failed\n",
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rows[i].label);
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fail++;
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goto rowdone;
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}
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snprintf(cmd, sizeof cmd,
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"cd %s && %s/ww_ww build -S -o %s %s "
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">/dev/null 2>&1", tmpdir, bin, stem_w, src);
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if (runwait(cmd) != 0) {
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fprintf(stderr, "row[%s]: ww_ww build failed\n",
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rows[i].label);
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fail++;
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} else {
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/* a failed cat (e.g. an empty sepwork glob) must fail
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* the row — two absent trees would compare equal-empty. */
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snprintf(cmd, sizeof cmd,
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"cat %s.sepwork/*.s > %s 2>/dev/null", stem_c, cs_s);
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int catc = runwait(cmd);
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snprintf(cmd, sizeof cmd,
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"cat %s.sepwork/*.s > %s 2>/dev/null", stem_w, ws_s);
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int catw = runwait(cmd);
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if (catc != 0 || catw != 0) {
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fprintf(stderr,
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"row[%s]: sepwork .s concat failed "
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"(cstage=%d wwstage=%d)\n",
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rows[i].label, catc, catw);
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fail++;
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} else if (slurp_eq(cs_s, ws_s) != 0) {
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fprintf(stderr,
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"row[%s]: cstage/wwstage .s DIFFER "
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"(rule-10 byte-id violation)\n",
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rows[i].label);
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fail++;
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}
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}
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rowdone:
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/* a failed cleanup must fail the carrier, not leak silently;
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* ENOENT is fine — an early leg may exit before creating the
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* concat files. */
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snprintf(cmd, sizeof cmd, "rm -rf %s", tmpdir);
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int cleanfail = runwait(cmd) != 0;
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if (unlink(src) != 0 && errno != ENOENT) {
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perror(src);
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cleanfail = 1;
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}
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if (unlink(cs_s) != 0 && errno != ENOENT) {
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perror(cs_s);
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cleanfail = 1;
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}
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if (unlink(ws_s) != 0 && errno != ENOENT) {
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perror(ws_s);
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cleanfail = 1;
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}
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if (cleanfail) {
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fprintf(stderr, "row[%s]: cleanup failed\n",
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rows[i].label);
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fail++;
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}
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}
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if (fail) {
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fprintf(stderr, "%d/%d defdim-struct tests failed\n",
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fail, n);
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return 1;
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}
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printf("defdim_struct: %d/%d ok (cs==ww byte-id)\n",
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n, n);
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return 0;
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}
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