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Undiamond Python headers

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This change gets the Python codebase into a state where it conforms to
the conventions of this codebase. It's now possible to include headers
from Python, without worrying about ordering. Python has traditionally
solved that problem by "diamonding" everything in Python.h, but that's
problematic since it means any change to any Python header invalidates
all the build artifacts. Lastly it makes tooling not work. Since it is
hard to explain to Emacs when I press C-c C-h to add an import line it
shouldn't add the header that actually defines the symbol, and instead
do follow the nonstandard Python convention.

Progress has been made on letting Python load source code from the zip
executable structure via the standard C library APIs. System calss now
recognizes zip!FILENAME alternative URIs as equivalent to zip:FILENAME
since Python uses colon as its delimiter.

Some progress has been made on embedding the notice license terms into
the Python object code. This is easier said than done since Python has
an extremely complicated ownership story.

- Some termios APIs have been added
- Implement rewinddir() dirstream API
- GetCpuCount() API added to Cosmopolitan Libc
- More bugs in Cosmopolitan Libc have been fixed
- zipobj.com now has flags for mangling the path
- Fixed bug a priori with sendfile() on certain BSDs
- Polyfill F_DUPFD and F_DUPFD_CLOEXEC across platforms
- FIOCLEX / FIONCLEX now polyfilled for fast O_CLOEXEC changes
- APE now supports a hybrid solution to no-self-modify for builds
- Many BSD-only magnums added, e.g. O_SEARCH, O_SHLOCK, SF_NODISKIO
This commit is contained in:
Justine Tunney 2021-08-12 00:42:14 -07:00
parent 20bb8db9f8
commit b420ed8248
762 changed files with 18410 additions and 53772 deletions
Download patch file Download diff file Expand all files Collapse all files

2
tool/build/ar.c
View file

@ -125,6 +125,8 @@ int main(int argc, char *argv[]) {
int *offsets, *modes, *sizes, *names;
int i, j, fd, err, name, outfd, tablebufsize;
if (argc == 2 && !strcmp(argv[1], "-n")) exit(0);
if (!(argc > 2 && strcmp(argv[1], "rcsD") == 0)) {
fprintf(stderr, "%s%s%s\n", "Usage: ", argv[0], " rcsD ARCHIVE FILE...");
return 1;

40
tool/build/build.mk
View file

@ -79,6 +79,46 @@ o/$(MODE)/tool/build/%.com.dbg: \
$(APE)
-@$(APELINK)
o/$(MODE)/tool/build/ar.com.dbg: \
$(TOOL_BUILD_DEPS) \
o/$(MODE)/tool/build/build.pkg \
o/$(MODE)/tool/build/ar.o \
$(CRT) \
$(APE_BUILDSAFE)
-@$(APELINK)
o/$(MODE)/tool/build/package.com.dbg: \
$(TOOL_BUILD_DEPS) \
o/$(MODE)/tool/build/build.pkg \
o/$(MODE)/tool/build/package.o \
$(CRT) \
$(APE_BUILDSAFE)
-@$(APELINK)
o/$(MODE)/tool/build/mkdeps.com.dbg: \
$(TOOL_BUILD_DEPS) \
o/$(MODE)/tool/build/build.pkg \
o/$(MODE)/tool/build/mkdeps.o \
$(CRT) \
$(APE_BUILDSAFE)
-@$(APELINK)
o/$(MODE)/tool/build/compile.com.dbg: \
$(TOOL_BUILD_DEPS) \
o/$(MODE)/tool/build/build.pkg \
o/$(MODE)/tool/build/compile.o \
$(CRT) \
$(APE_BUILDSAFE)
-@$(APELINK)
o/$(MODE)/tool/build/zipobj.com.dbg: \
$(TOOL_BUILD_DEPS) \
o/$(MODE)/tool/build/build.pkg \
o/$(MODE)/tool/build/zipobj.o \
$(CRT) \
$(APE_BUILDSAFE)
-@$(APELINK)
o/$(MODE)/tool/build/emulator.o: \
OVERRIDE_COPTS += \
-fno-sanitize=pointer-overflow

71
tool/build/lib/isnocompressext.c Normal file
View file

@ -0,0 +1,71 @@
/*-*- 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/bits.h"
#include "libc/bits/bswap.h"
#include "libc/macros.internal.h"
#include "libc/str/str.h"
#include "tool/build/lib/isnocompressext.h"
static const char kNoCompressExts[][8] = {
"bz2", //
"gif", //
"gz", //
"jpg", //
"lz4", //
"mp4", //
"mpeg", //
"mpg", //
"png", //
"webp", //
"xz", //
"zip", //
};
static bool BisectNoCompressExts(uint64_t ext) {
int c, m, l, r;
l = 0;
r = ARRAYLEN(kNoCompressExts) - 1;
while (l <= r) {
m = (l + r) >> 1;
if (READ64BE(kNoCompressExts[m]) < ext) {
l = m + 1;
} else if (READ64BE(kNoCompressExts[m]) > ext) {
r = m - 1;
} else {
return true;
}
}
return false;
}
bool IsNoCompressExt(const char *p, size_t n) {
int c;
uint64_t w;
if (n == -1) n = p ? strlen(p) : 0;
if (n) {
for (w = 0; n--;) {
c = p[n] & 255;
if (c == '.') break;
w <<= 8;
w |= kToLower[c];
}
return BisectNoCompressExts(bswap_64(w));
}
return false;
}

10
tool/build/lib/isnocompressext.h Normal file
View file

@ -0,0 +1,10 @@
#ifndef COSMOPOLITAN_TOOL_BUILD_LIB_ISNOCOMPRESSEXT_H_
#define COSMOPOLITAN_TOOL_BUILD_LIB_ISNOCOMPRESSEXT_H_
#if !(__ASSEMBLER__ + __LINKER__ + 0)
COSMOPOLITAN_C_START_
bool IsNoCompressExt(const char *, size_t);
COSMOPOLITAN_C_END_
#endif /* !(__ASSEMBLER__ + __LINKER__ + 0) */
#endif /* COSMOPOLITAN_TOOL_BUILD_LIB_ISNOCOMPRESSEXT_H_ */

38
tool/build/lib/stripcomponents.c Normal file
View file

@ -0,0 +1,38 @@
/*-*- 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 "tool/build/lib/stripcomponents.h"
/**
* Strips leading directory components.
*
* The basename is never stripped.
*/
char *StripComponents(const char *path, int n) {
const char *p;
while (n-- > 0) {
while (*path == '/') ++path;
for (p = path; *p; ++p) {
if (*p == '/') {
path = p + 1;
break;
}
}
}
return (char *)path;
}

10
tool/build/lib/stripcomponents.h Normal file
View file

@ -0,0 +1,10 @@
#ifndef COSMOPOLITAN_TOOL_BUILD_LIB_STRIPCOMPONENTS_H_
#define COSMOPOLITAN_TOOL_BUILD_LIB_STRIPCOMPONENTS_H_
#if !(__ASSEMBLER__ + __LINKER__ + 0)
COSMOPOLITAN_C_START_
char *StripComponents(const char *, int);
COSMOPOLITAN_C_END_
#endif /* !(__ASSEMBLER__ + __LINKER__ + 0) */
#endif /* COSMOPOLITAN_TOOL_BUILD_LIB_STRIPCOMPONENTS_H_ */

2
tool/build/lib/syscall.c
View file

@ -102,7 +102,7 @@ const struct MachineFdCb kMachineFdCbHost = {
.close = close,
.readv = readv,
.writev = writev,
.ioctl = ioctl,
.ioctl = (void *)ioctl,
};
static int XlatSignal(int sig) {

1
tool/build/mkdeps.c
View file

@ -369,6 +369,7 @@ int main(int argc, char *argv[]) {
bool needprefix;
size_t i, bitmaplen;
const char *path, *prefix;
if (argc == 2 && !strcmp(argv[1], "-n")) exit(0);
showcrashreports();
out = "/dev/stdout";
GetOpts(argc, argv);

1
tool/build/package.c
View file

@ -679,6 +679,7 @@ void Package(int argc, char *argv[], struct Package *pkg,
int main(int argc, char *argv[]) {
struct Package pkg;
struct Packages deps;
if (argc == 2 && !strcmp(argv[1], "-n")) exit(0);
showcrashreports();
memset(&pkg, 0, sizeof(pkg));
memset(&deps, 0, sizeof(deps));

88
tool/build/zipobj.c
View file

@ -18,6 +18,7 @@
╚─────────────────────────────────────────────────────────────────────────────*/
#include "libc/alg/arraylist.internal.h"
#include "libc/bits/bits.h"
#include "libc/bits/bswap.h"
#include "libc/bits/safemacros.internal.h"
#include "libc/calls/calls.h"
#include "libc/calls/struct/stat.h"
@ -33,6 +34,7 @@
#include "libc/nexgen32e/crc32.h"
#include "libc/nt/enum/fileflagandattributes.h"
#include "libc/nt/struct/imageauxsymbolex.internal.h"
#include "libc/rand/rand.h"
#include "libc/runtime/gc.internal.h"
#include "libc/runtime/runtime.h"
#include "libc/runtime/symbols.internal.h"
@ -52,23 +54,26 @@
#include "third_party/getopt/getopt.h"
#include "third_party/zlib/zlib.h"
#include "tool/build/lib/elfwriter.h"
#include "tool/build/lib/isnocompressext.h"
#include "tool/build/lib/stripcomponents.h"
#define ZIP_LOCALFILE_SECTION ".zip.2."
#define ZIP_DIRECTORY_SECTION ".zip.4."
char *name_;
char *yoink_;
char *symbol_;
char *outpath_;
char *yoink_;
bool nocompress_;
bool basenamify_;
int64_t image_base_;
const size_t kMinCompressSize = 32;
const char kNoCompressExts[][8] = {".gz", ".xz", ".jpg", ".png",
".gif", ".zip", ".bz2", ".mpg",
".mp4", ".lz4", ".webp", ".mpeg"};
int strip_components_;
const char *path_prefix_;
wontreturn void PrintUsage(int rc, FILE *f) {
fprintf(f, "%s%s%s\n", "Usage: ", program_invocation_name,
" [-o FILE] [-s SYMBOL] [-y YOINK] [FILE...]\n");
" [-n] [-B] [-C INT] [-P PREFIX] [-o FILE] [-s SYMBOL] [-y YOINK] "
"[FILE...]\n");
exit(rc);
}
@ -76,20 +81,37 @@ void GetOpts(int *argc, char ***argv) {
int opt;
yoink_ = "__zip_start";
image_base_ = IMAGE_BASE_VIRTUAL;
while ((opt = getopt(*argc, *argv, "?ho:s:y:b:")) != -1) {
while ((opt = getopt(*argc, *argv, "?0nhBN:C:P:o:s:y:b:")) != -1) {
switch (opt) {
case 'o':
outpath_ = optarg;
break;
case 'n':
exit(0);
case 's':
symbol_ = optarg;
break;
case 'y':
yoink_ = optarg;
break;
case 'N':
name_ = optarg;
break;
case 'P':
path_prefix_ = optarg;
break;
case 'C':
strip_components_ = atoi(optarg);
break;
case 'B':
basenamify_ = true;
break;
case 'b':
image_base_ = strtol(optarg, NULL, 0);
break;
case '0':
nocompress_ = true;
break;
case '?':
case 'h':
PrintUsage(EXIT_SUCCESS, stdout);
@ -105,8 +127,8 @@ void GetOpts(int *argc, char ***argv) {
bool IsUtf8(const void *data, size_t size) {
const unsigned char *p, *pe;
for (p = data, pe = p + size; p + 2 <= pe; ++p) {
if (*p >= 0300) {
if (*p >= 0200 && *p < 0300) {
if (p[0] >= 0300) {
if (p[1] >= 0200 && p[1] < 0300) {
return true;
} else {
return false;
@ -126,16 +148,10 @@ bool IsText(const void *data, size_t size) {
return true;
}
bool ShouldCompress(const char *name, size_t size) {
size_t i;
char key[8];
const char *p;
if (!(p = memrchr(name, '.', size))) return true;
strncpy(key, p, sizeof(key));
for (i = 0; i < ARRAYLEN(kNoCompressExts); ++i) {
if (memcmp(key, kNoCompressExts[i], sizeof(key)) == 0) return false;
}
return true;
bool ShouldCompress(const char *name, size_t namesize,
const unsigned char *data, size_t datasize) {
return !nocompress_ && datasize >= 64 && !IsNoCompressExt(name, namesize) &&
(datasize < 1000 || MeasureEntropy((void *)data, 1000) < 6);
}
void GetDosLocalTime(int64_t utcunixts, uint16_t *out_time,
@ -242,10 +258,12 @@ void EmitZip(struct ElfWriter *elf, const char *name, size_t namesize,
crc = crc32_z(0, data, uncompsize);
GetDosLocalTime(st->st_mtim.tv_sec, &mtime, &mdate);
if (IsUtf8(name, namesize)) gflags |= kZipGflagUtf8;
if (IsText(data, st->st_size)) iattrs |= kZipIattrText;
if (S_ISREG(st->st_mode) && IsText(data, st->st_size)) {
iattrs |= kZipIattrText;
}
commentsize = kZipCdirHdrLinkableSize - (CFILE_HDR_SIZE + namesize);
dosmode = !(st->st_mode & 0200) ? kNtFileAttributeReadonly : 0;
method = (st->st_size >= kMinCompressSize && ShouldCompress(name, namesize))
method = ShouldCompress(name, namesize, data, st->st_size)
? kZipCompressionDeflate
: kZipCompressionNone;
@ -310,20 +328,34 @@ void ProcessFile(struct ElfWriter *elf, const char *path) {
void *map;
size_t pathlen;
struct stat st;
pathlen = strlen(path);
const char *name;
CHECK_NE(-1, (fd = open(path, O_RDONLY)));
CHECK_NE(-1, fstat(fd, &st));
if (st.st_size) {
if (S_ISDIR(st.st_mode)) {
map = "";
st.st_size = 0;
} else if (st.st_size) {
CHECK_NE(MAP_FAILED,
(map = mmap(NULL, st.st_size, PROT_READ, MAP_SHARED, fd, 0)));
CHECK_NE(-1, close(fd));
} else {
map = NULL;
}
EmitZip(elf, path, pathlen, map, &st);
if (st.st_size) {
CHECK_NE(-1, munmap(map, st.st_size));
if (name_) {
name = name_;
} else {
name = path;
if (basenamify_) name = basename(name);
name = StripComponents(name, strip_components_);
if (path_prefix_) name = gc(xjoinpaths(path_prefix_, name));
}
if (S_ISDIR(st.st_mode)) {
if (!endswith(name, "/")) {
name = gc(xasprintf("%s/", name));
}
}
EmitZip(elf, name, strlen(name), map, &st);
if (st.st_size) CHECK_NE(-1, munmap(map, st.st_size));
close(fd);
}
void PullEndOfCentralDirectoryIntoLinkage(struct ElfWriter *elf) {