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cosmopolitan/tool/build/compile.c
Justine Tunney 8a91518633 Fix issues revealed by ECMAScript test262 
Cosmopolitan's QuickJS is now equally conformant and performant, with
the exception of Atomics, which have been disabled since Cosmopolitan
currently doesn't support pthreads.

QuickJS memory usage -- BigNum 2021-03-27 version, 64-bit, malloc limit: -1

NAME                    COUNT     SIZE
memory allocated          937   131764  (140.6 per block)
memory used               938   116103  (8 overhead, 16.7 average slack)
atoms                     513    21408  (41.7 per atom)
objects                   170    12279  (72.2 per object)
  properties              864    15531  (5.1 per object)
  shapes                   58    12995  (224.1 per shape)
bytecode functions         13     1512
  bytecode                 13      867  (66.7 per function)
C functions                99
arrays                      1
  fast arrays               1
  elements                  1       16  (1.0 per fast array)

Result: 35/74740 errors, 1279 excluded, 485 skipped, 19 new, 2 fixed

real    2m40.828s
user    2m29.764s
sys     0m10.939s
2021-04-10 17:15:35 -07:00

611 lines
17 KiB
C
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/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:2;tab-width:8;coding:utf-8 -*-│
│vi: set net ft=c ts=2 sts=2 sw=2 fenc=utf-8 :vi│
╞══════════════════════════════════════════════════════════════════════════════╡
│ Copyright 2021 Justine Alexandra Roberts Tunney │
│ │
│ Permission to use, copy, modify, and/or distribute this software for │
│ any purpose with or without fee is hereby granted, provided that the │
│ above copyright notice and this permission notice appear in all copies. │
│ │
│ THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL │
│ WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED │
│ WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE │
│ AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL │
│ DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR │
│ PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER │
│ TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR │
│ PERFORMANCE OF THIS SOFTWARE. │
╚─────────────────────────────────────────────────────────────────────────────*/
#include "libc/bits/safemacros.internal.h"
#include "libc/calls/calls.h"
#include "libc/calls/copyfile.h"
#include "libc/calls/sigbits.h"
#include "libc/calls/struct/sigset.h"
#include "libc/errno.h"
#include "libc/fmt/conv.h"
#include "libc/log/color.internal.h"
#include "libc/log/log.h"
#include "libc/mem/mem.h"
#include "libc/runtime/runtime.h"
#include "libc/str/str.h"
#include "libc/sysv/consts/sig.h"
#include "libc/x/x.h"
#include "third_party/getopt/getopt.h"
#define MANUAL \
"\
SYNOPSIS\n\
\n\
compile.com [FLAGS] COMMAND [ARGS...]\n\
\n\
OVERVIEW\n\
\n\
Compiler Collection Frontend Frontend\n\
\n\
DESCRIPTION\n\
\n\
This is a generic command wrapper, e.g.\n\
\n\
compile.com gcc -o program program.c\n\
\n\
This wrapper provides the following services:\n\
\n\
- Ensures the output directory exists\n\
- Echo the launched subcommand (silent mode supported if V=0)\n\
- Magic filtering of GCC vs. Clang flag incompatibilities\n\
- Unzips the vendored GCC toolchain if it hasn't happened yet\n\
- Making temporary copies of APE executables w/o side-effects\n\
- Truncating long lines in \"TERM=dumb\" terminals like emacs\n\
\n\
This wrapper is extremely fast.\n\
\n\
FLAGS\n\
\n\
-A ACTION specifies short command name for V=0 logging\n\
-T TARGET specifies target name for V=0 logging\n\
-V NUMBER specifies compiler version\n\
-t touch target on success\n\
-n do nothing (used to prime the executable)\n\
-? print help\n\
\n"
struct Args {
size_t n;
char **p;
};
struct Command {
size_t n;
char *p;
};
bool iscc;
bool isclang;
bool isgcc;
bool wantasan;
bool wantfentry;
bool wantframe;
bool wantnop;
bool wantnopg;
bool wantpg;
bool wantrecord;
bool wantubsan;
bool touchtarget;
char *cmd;
char *comdbg;
char *cachedcmd;
char *originalcmd;
char *colorflag;
char *outdir;
char *outpath;
char *action;
char *target;
char ccpath[PATH_MAX];
int ccversion;
int columns;
sigset_t mask;
sigset_t savemask;
struct Args env;
struct Args args;
struct Command command;
const char *const kSafeEnv[] = {
"ADDR2LINE", // needed by GetAddr2linePath
"MAKEFLAGS", // needed by IsRunningUnderMake
"MODE", // needed by test scripts
"PATH", // needed by clang
"PWD", // just seems plain needed
"TERM", // needed by IsTerminalInarticulate
"TMPDIR", // needed by compiler
};
const char *const kGccOnlyFlags[] = {
"--nocompress-debug-sections",
"--noexecstack",
"-Wa,--nocompress-debug-sections",
"-Wa,--noexecstack",
"-Wa,-msse2avx",
"-Wno-unused-but-set-variable",
"-Wunsafe-loop-optimizations",
"-fbranch-target-load-optimize",
"-fcx-limited-range",
"-fdelete-dead-exceptions",
"-femit-struct-debug-baseonly",
"-fipa-pta",
"-fivopts",
"-flimit-function-alignment",
"-fmerge-constants",
"-fmodulo-sched",
"-fmodulo-sched-allow-regmoves",
"-fno-align-jumps",
"-fno-align-labels",
"-fno-align-loops",
"-fno-fp-int-builtin-inexact",
"-fno-gnu-unique",
"-fno-gnu-unique",
"-fno-instrument-functions",
"-fno-whole-program",
"-fopt-info-vec",
"-fopt-info-vec-missed",
"-freg-struct-return",
"-freschedule-modulo-scheduled-loops",
"-frounding-math",
"-fsched2-use-superblocks",
"-fschedule-insns",
"-fschedule-insns2",
"-fshrink-wrap",
"-fshrink-wrap-separate",
"-fsignaling-nans",
"-fstack-clash-protection",
"-ftracer",
"-ftrapv",
"-ftree-loop-im",
"-ftree-loop-vectorize",
"-funsafe-loop-optimizations",
"-fversion-loops-for-strides",
"-fwhole-program",
"-gdescribe-dies",
"-gstabs",
"-mcall-ms2sysv-xlogues",
"-mdispatch-scheduler",
"-mfpmath=sse+387",
"-mmitigate-rop",
"-mno-fentry",
};
char *DescribeCommand(void) {
if (iscc) {
if (isgcc) {
return xasprintf("gcc %d", ccversion);
} else if (isclang) {
return xasprintf("clang %d", ccversion);
}
}
return basename(cmd);
}
bool IsSafeEnv(const char *s) {
const char *p;
int n, m, l, r, x;
p = strchr(s, '=');
n = p ? p - s : -1;
l = 0;
r = ARRAYLEN(kSafeEnv) - 1;
while (l <= r) {
m = (l + r) >> 1;
x = strncmp(s, kSafeEnv[m], n);
if (x < 0) {
r = m - 1;
} else if (x > 0) {
l = m + 1;
} else {
return true;
}
}
return false;
}
bool IsGccOnlyFlag(const char *s) {
int m, l, r, x;
l = 0;
r = ARRAYLEN(kGccOnlyFlags) - 1;
while (l <= r) {
m = (l + r) >> 1;
x = strcmp(s, kGccOnlyFlags[m]);
if (x < 0) {
r = m - 1;
} else if (x > 0) {
l = m + 1;
} else {
return true;
}
}
if (startswith(s, "-ffixed-")) return true;
if (startswith(s, "-fcall-saved")) return true;
if (startswith(s, "-fcall-used")) return true;
if (startswith(s, "-fgcse-")) return true;
if (startswith(s, "-fvect-cost-model=")) return true;
if (startswith(s, "-fsimd-cost-model=")) return true;
if (startswith(s, "-fopt-info")) return true;
if (startswith(s, "-mstringop-strategy=")) return true;
if (startswith(s, "-mpreferred-stack-boundary=")) return true;
if (startswith(s, "-Wframe-larger-than=")) return true;
return false;
}
bool FileExistsAndIsNewerThan(const char *filepath, const char *thanpath) {
struct stat st1, st2;
if (stat(filepath, &st1) == -1) return false;
if (stat(thanpath, &st2) == -1) return false;
if (st1.st_mtim.tv_sec < st2.st_mtim.tv_sec) return false;
if (st1.st_mtim.tv_sec > st2.st_mtim.tv_sec) return true;
return st1.st_mtim.tv_nsec >= st2.st_mtim.tv_nsec;
}
void AddEnv(char *s) {
env.p = realloc(env.p, ++env.n * sizeof(*env.p));
env.p[env.n - 1] = s;
}
void AddArg(char *s) {
size_t n;
args.p = realloc(args.p, ++args.n * sizeof(*args.p));
args.p[args.n - 1] = s;
if (s) {
n = strlen(s);
if (command.n) {
command.p = realloc(command.p, command.n + 1 + n);
command.p[command.n] = ' ';
memcpy(command.p + command.n + 1, s, n);
command.n += 1 + n;
} else {
command.p = realloc(command.p, command.n + n);
memcpy(command.p + command.n, s, n);
command.n += n;
}
} else {
command.p = realloc(command.p, command.n + 2);
command.p[command.n++] = '\r';
command.p[command.n++] = '\n';
}
}
int Launch(void) {
int ws, pid;
if ((pid = vfork()) == -1) exit(errno);
if (!pid) {
sigprocmask(SIG_SETMASK, &savemask, NULL);
execve(cmd, args.p, env.p);
_exit(127);
}
while (waitpid(pid, &ws, 0) == -1) {
if (errno != EINTR) exit(errno);
}
return ws;
}
int main(int argc, char *argv[]) {
size_t n;
char *p, **envp;
int i, ws, rc, opt;
/*
* parse prefix arguments
*/
while ((opt = getopt(argc, argv, "?hntA:T:V:")) != -1) {
switch (opt) {
case 'n':
exit(0);
case 't':
touchtarget = true;
break;
case 'A':
action = optarg;
break;
case 'T':
target = optarg;
break;
case 'V':
ccversion = atoi(optarg);
break;
case '?':
case 'h':
write(1, MANUAL, sizeof(MANUAL) - 1);
exit(0);
default:
write(2, MANUAL, sizeof(MANUAL) - 1);
exit(1);
}
}
if (optind == argc) {
write(2, MANUAL, sizeof(MANUAL) - 1);
exit(1);
}
cmd = argv[optind];
if (!strchr(cmd, '/')) {
if (!(cmd = commandv(cmd, ccpath))) exit(127);
}
isgcc = !!strstr(basename(cmd), "gcc");
isclang = !!strstr(basename(cmd), "clang");
iscc = isgcc | isclang;
/*
* ingest arguments
*/
for (i = optind; i < argc; ++i) {
if (argv[i][0] != '-') {
AddArg(argv[i]);
continue;
}
if (!strcmp(argv[i], "-o")) {
AddArg(argv[i]);
AddArg((outpath = argv[++i]));
continue;
}
if (!iscc) {
AddArg(argv[i]);
continue;
}
if (isclang && IsGccOnlyFlag(argv[i])) {
continue;
}
if (!strcmp(argv[i], "-w")) {
AddArg(argv[i]);
AddArg("-D__W__");
} else if (!strcmp(argv[i], "-Oz")) {
if (isclang) {
AddArg(argv[i]);
} else {
AddArg("-Os");
}
} else if (!strcmp(argv[i], "-pg")) {
wantpg = true;
} else if (!strcmp(argv[i], "-x-no-pg")) {
wantnopg = true;
} else if (!strcmp(argv[i], "-mfentry")) {
wantfentry = true;
} else if (!strcmp(argv[i], "-mnop-mcount")) {
wantnop = true;
} else if (!strcmp(argv[i], "-mrecord-mcount")) {
wantrecord = true;
} else if (!strcmp(argv[i], "-fno-omit-frame-pointer")) {
wantframe = true;
} else if (!strcmp(argv[i], "-fomit-frame-pointer")) {
wantframe = false;
} else if (!strcmp(argv[i], "-mno-vzeroupper")) {
if (isgcc) {
AddArg("-Wa,-msse2avx");
AddArg("-D__MNO_VZEROUPPER__");
} else if (isclang) {
AddArg("-mllvm");
AddArg("-x86-use-vzeroupper=0");
}
} else if (!strcmp(argv[i], "-msse2avx")) {
if (isgcc) {
AddArg(argv[i]);
}
} else if (!strcmp(argv[i], "-fsanitize=address")) {
if (isgcc && ccversion >= 6) wantasan = true;
} else if (!strcmp(argv[i], "-fsanitize=undefined")) {
if (isgcc && ccversion >= 6) wantubsan = true;
} else if (!strcmp(argv[i], "-fno-sanitize=address")) {
wantasan = false;
} else if (!strcmp(argv[i], "-fno-sanitize=undefined")) {
wantubsan = false;
} else if (!strcmp(argv[i], "-fno-sanitize=all")) {
wantasan = false;
wantubsan = false;
} else if (startswith(argv[i], "-fsanitize=implicit") &&
strstr(argv[i], "integer")) {
if (isgcc) AddArg(argv[i]);
} else if (startswith(argv[i], "-fvect-cost") ||
startswith(argv[i], "-mstringop") ||
startswith(argv[i], "-gz") ||
strstr(argv[i], "stack-protector") ||
strstr(argv[i], "sanitize") ||
startswith(argv[i], "-fvect-cost") ||
startswith(argv[i], "-fvect-cost")) {
if (isgcc && ccversion >= 6) {
AddArg(argv[i]);
}
} else if (startswith(argv[i], "-fdiagnostic-color=")) {
colorflag = argv[i];
} else if (startswith(argv[i], "-R") ||
!strcmp(argv[i], "-fsave-optimization-record")) {
if (isclang) AddArg(argv[i]);
} else if (isclang && startswith(argv[i], "--debug-prefix-map")) {
/* llvm doesn't provide a gas interface so simulate w/ clang */
AddArg(xasprintf("-f%s", argv[i] + 2));
} else if (isgcc && (!strcmp(argv[i], "-Os") || !strcmp(argv[i], "-O2") ||
!strcmp(argv[i], "-O3"))) {
/* https://gcc.gnu.org/bugzilla/show_bug.cgi?id=97623 */
AddArg(argv[i]);
AddArg("-fno-code-hoisting");
} else {
AddArg(argv[i]);
}
}
if (!outpath) {
outpath = target;
}
/*
* append special args
*/
if (iscc) {
if (isclang) {
AddArg("-Wno-unused-command-line-argument");
AddArg("-Wno-incompatible-pointer-types-discards-qualifiers");
}
AddArg("-no-canonical-prefixes");
if (!IsTerminalInarticulate()) {
AddArg(firstnonnull(colorflag, "-fdiagnostics-color=always"));
}
if (wantpg && !wantnopg) {
AddArg("-pg");
AddArg("-D__PG__");
if (wantnop && !isclang) {
AddArg("-mnop-mcount");
AddArg("-D__MNOP_MCOUNT__");
}
if (wantrecord) {
AddArg("-mrecord-mcount");
AddArg("-D__MRECORD_MCOUNT__");
}
if (wantfentry) {
AddArg("-mfentry");
AddArg("-D__MFENTRY__");
}
}
if (wantasan) {
AddArg("-fsanitize=address");
AddArg("-D__FSANITIZE_ADDRESS__");
}
if (wantubsan) {
AddArg("-fsanitize=undefined");
AddArg("-fno-data-sections");
}
if (wantframe) {
AddArg("-fno-omit-frame-pointer");
}
}
/*
* terminate args
*/
AddArg(NULL);
/*
* scrub environment for determinism and great justice
*/
for (envp = environ; *envp; ++envp) {
if (IsSafeEnv(*envp)) {
AddEnv(*envp);
}
}
AddEnv("LC_ALL=C");
AddEnv("SOURCE_DATE_EPOCH=0");
/*
* ensure output directory exists
*/
if (outpath) {
outdir = xdirname(outpath);
if (!isdirectory(outdir)) {
makedirs(outdir, 0755);
}
}
/*
* log command being run
*/
if (!strcmp(nulltoempty(getenv("V")), "0") && !IsTerminalInarticulate()) {
p = xasprintf("\r\e[K%-15s%s\r", firstnonnull(action, "BUILD"),
firstnonnull(target, nulltoempty(outpath)));
n = strlen(p);
} else {
if (IsTerminalInarticulate() &&
(columns = atoi(nulltoempty(getenv("COLUMNS")))) > 25 &&
command.n > columns + 2) {
/* emacs command window is very slow so truncate lines */
command.n = columns + 2;
command.p[command.n - 5] = '.';
command.p[command.n - 4] = '.';
command.p[command.n - 3] = '.';
command.p[command.n - 2] = '\r';
command.p[command.n - 1] = '\n';
}
p = command.p;
n = command.n;
}
write(2, p, n);
/*
* create temporary copy when launching APE binaries
* and we help FindDebugBinary to find debug symbols
*/
if (!IsWindows() && endswith(cmd, ".com")) {
comdbg = xasprintf("%s.dbg", cmd);
cachedcmd = xasprintf("o/%s", cmd);
if (fileexists(comdbg)) {
AddEnv(xasprintf("COMDBG=%s", comdbg));
}
if (FileExistsAndIsNewerThan(cachedcmd, cmd)) {
cmd = cachedcmd;
} else {
if (startswith(cmd, "o/")) {
cachedcmd = NULL;
}
originalcmd = cmd;
cmd = xasprintf("%s.tmp.%d", originalcmd, getpid());
copyfile(originalcmd, cmd, 0);
}
}
/*
* terminate environment
*/
AddEnv(NULL);
/*
* launch command
*/
sigfillset(&mask);
sigprocmask(SIG_BLOCK, &mask, &savemask);
ws = Launch();
/*
* if execve() failed unzip gcc and try again
*/
if (WIFEXITED(ws) && WEXITSTATUS(ws) == 127 &&
startswith(cmd, "o/third_party/gcc") &&
fileexists("third_party/gcc/unbundle.sh")) {
system("third_party/gcc/unbundle.sh");
ws = Launch();
}
/*
* cleanup temporary copy of ape executable
*/
if (originalcmd) {
if (cachedcmd && WIFEXITED(ws) && !WEXITSTATUS(ws)) {
makedirs(xdirname(cachedcmd), 0755);
rename(cmd, cachedcmd);
} else {
unlink(cmd);
}
}
/*
* propagate exit
*/
if (WIFEXITED(ws)) {
if (!WEXITSTATUS(ws)) {
if (touchtarget && target) {
makedirs(xdirname(target), 0755);
touch(target, 0644);
}
return 0;
} else {
p = xasprintf("%s%s EXITED WITH %d%s: %.*s\r\n", RED2, DescribeCommand(),
WEXITSTATUS(ws), RESET, command.n, command.p);
rc = WEXITSTATUS(ws);
}
} else {
p = xasprintf("%s%s TERMINATED BY %s%s: %.*s\r\n", RED2, DescribeCommand(),
strsignal(WTERMSIG(ws)), RESET, command.n, command.p);
rc = 128 + WTERMSIG(ws);
}
/*
* print full command in the event of error
*/
write(2, p, strlen(p));
return rc;
}
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