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Redesign cosmocc toolchain

Browse source 
The `cosmocc` compiler is now being distributed as a self-contained
toolchain that's path-agnostic and it no longer requires you clone the
Cosmop repo to use it. The bin/ folder has been deleted from the mono
repo. The `fatcosmocc` command has been renamed to `cosmocc`. MacOS
support now works very well.
This commit is contained in:
Justine Tunney 2023-11-11 14:04:26 -08:00
parent 3802428026
commit 291103ad8d
No known key found for this signature in database
GPG key ID: BE714B4575D6E328
71 changed files with 2437 additions and 1398 deletions
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128
tool/build/fixupobj.c
View file

@ -35,6 +35,7 @@
#include "libc/macros.internal.h"
#include "libc/mem/gc.internal.h"
#include "libc/runtime/runtime.h"
#include "libc/stdckdint.h"
#include "libc/str/str.h"
#include "libc/sysv/consts/map.h"
#include "libc/sysv/consts/msync.h"
@ -51,17 +52,6 @@
#define MRS_TPIDR_EL0 0xd53bd040u
#define MOV_REG(DST, SRC) (0xaa0003e0u | (SRC) << 16 | (DST))
const unsigned char kFatNops[8][8] = {
{}, //
{0x90}, // nop
{0x66, 0x90}, // xchg %ax,%ax
{0x0f, 0x1f, 0x00}, // nopl (%rax)
{0x0f, 0x1f, 0x40, 0x00}, // nopl 0x00(%rax)
{0x0f, 0x1f, 0x44, 0x00, 0x00}, // nopl 0x00(%rax,%rax,1)
{0x66, 0x0f, 0x1f, 0x44, 0x00, 0x00}, // nopw 0x00(%rax,%rax,1)
{0x0f, 0x1f, 0x80, 0x00, 0x00, 0x00, 0x00}, // nopl 0x00000000(%rax)
};
static int mode;
static int fildes;
static char *symstrs;
@ -138,6 +128,70 @@ static void GetOpts(int argc, char *argv[]) {
}
}
// Official Intel Multibyte No-Operation Instructions. See
// Intel's Six Thousand Page Manual, Volume 2, Table 4-12:
// On "Recommended Multi-Byte Sequence of NOP Instruction"
static const unsigned char kNops[10][10] = {
{}, //
{/***/ /***/ 0x90}, // nop
{0x66, /***/ 0x90}, // xchg %ax,%ax
{/***/ 0x0f, 0x1f, 0000}, // nopl (%rax)
{/***/ 0x0f, 0x1f, 0100, /***/ 0}, // nopl 0x00(%rax)
{/***/ 0x0f, 0x1f, 0104, 0000, 0}, // nopl 0x00(%rax,%rax,1)
{0x66, 0x0f, 0x1f, 0104, 0000, 0}, // nopw 0x00(%rax,%rax,1)
{/***/ 0x0f, 0x1f, 0200, 0000, 0, 0, 0}, // nopl 0x00000000(%rax)
{/***/ 0x0F, 0x1F, 0204, 0000, 0, 0, 0, 0}, // nopl 0x00000000(%rax,%rax,1)
{0x66, 0x0F, 0x1F, 0204, 0000, 0, 0, 0, 0}, // nopw 0x00000000(%rax,%rax,1)
// osz map op modrm sib displacement //
};
/**
* Rewrites leading NOP instructions to have fewer instructions.
*
* For example, the following code:
*
* nop
* nop
* nop
* nop
* nop
* nop
* nop
* nop
* nop
* nop
* nop
* nop
* ret
* nop
* nop
*
* Would be morphed into the following:
*
* nopw 0x00000000(%rax,%rax,1)
* xchg %ax,%ax
* ret
* nop
* nop
*
* @param p points to memory region that shall be modified
* @param e points to end of memory region, i.e. `p + #bytes`
* @return p advanced past last morphed byte
*/
static unsigned char *CoalesceNops(unsigned char *p, const unsigned char *e) {
long n;
for (; p + 1 < e; p += n) {
if (p[0] != 0x90) break;
if (p[1] != 0x90) break;
for (n = 2; p + n < e; ++n) {
if (p[n] != 0x90) break;
if (n == ARRAYLEN(kNops) - 1) break;
}
memcpy(p, kNops[n], n);
}
return p;
}
static void CheckPrivilegedCrossReferences(void) {
unsigned long x;
const char *secname;
@ -202,40 +256,32 @@ static void RewriteTlsCode(void) {
* `STT_FUNC` and `st_size` must have the function's byte length.
*/
static void OptimizePatchableFunctionEntries(void) {
#ifdef __x86_64__
long i, n;
long i;
Elf64_Shdr *shdr;
unsigned char *p, *pe;
for (i = 0; i < symcount; ++i) {
if (!syms[i].st_size) continue;
if (ELF64_ST_TYPE(syms[i].st_info) != STT_FUNC) continue;
if (!(shdr = GetElfSectionHeaderAddress(elf, esize, syms[i].st_shndx))) {
Die("elf header overflow #3");
}
if (shdr->sh_type != SHT_PROGBITS) continue;
if (!(p = GetElfSectionAddress(elf, esize, shdr))) {
Die("elf header overflow #4");
}
if (syms[i].st_value < shdr->sh_addr) {
Die("elf symbol beneath section");
}
if ((syms[i].st_value - shdr->sh_addr > esize ||
(p += syms[i].st_value - shdr->sh_addr) >=
(unsigned char *)elf + esize) ||
(syms[i].st_size >= esize ||
(pe = p + syms[i].st_size) >= (unsigned char *)elf + esize)) {
Die("elf symbol overflow");
};
for (; p + 1 < pe; p += n) {
if (p[0] != 0x90) break;
if (p[1] != 0x90) break;
for (n = 2; p + n < pe && n < ARRAYLEN(kFatNops); ++n) {
if (p[n] != 0x90) break;
unsigned char *p;
Elf64_Addr sym_rva;
if (elf->e_machine == EM_NEXGEN32E) {
for (i = 0; i < symcount; ++i) {
if (!syms[i].st_size) continue;
if (ELF64_ST_TYPE(syms[i].st_info) != STT_FUNC) continue;
if (!(shdr = GetElfSectionHeaderAddress(elf, esize, syms[i].st_shndx))) {
Die("elf header overflow #3");
}
memcpy(p, kFatNops[n], n);
if (shdr->sh_type != SHT_PROGBITS) continue;
if (!(p = GetElfSectionAddress(elf, esize, shdr))) {
Die("elf section overflow");
}
if (ckd_sub(&sym_rva, syms[i].st_value, shdr->sh_addr)) {
Die("elf symbol beneath section");
}
if (sym_rva > esize - shdr->sh_offset || //
(p += sym_rva) >= (unsigned char *)elf + esize || //
syms[i].st_size >= esize - sym_rva) {
Die("elf symbol overflow");
}
CoalesceNops(p, p + syms[i].st_size);
}
}
#endif /* __x86_64__ */
}
/**

92
tool/build/rollup.c
View file

@ -16,15 +16,8 @@
│ TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR │
│ PERFORMANCE OF THIS SOFTWARE. │
╚─────────────────────────────────────────────────────────────────────────────*/
#include "ape/relocations.h"
#include "libc/calls/calls.h"
#include "libc/calls/struct/stat.h"
#include "libc/errno.h"
#include "libc/fmt/itoa.h"
#include "libc/intrin/kprintf.h"
#include "libc/log/check.h"
#include "libc/log/log.h"
#include "libc/mem/arraylist2.internal.h"
#include "libc/mem/mem.h"
#include "libc/runtime/runtime.h"
#include "libc/stdio/append.h"
@ -44,13 +37,38 @@ struct Visited {
};
char *output;
const char *prog;
struct Interner *visited;
void Visit(const char *);
static wontreturn void Die(const char *reason) {
tinyprint(2, prog, ": ", reason, "\n", NULL);
exit(1);
}
static wontreturn void DieSys(const char *thing) {
perror(thing);
exit(1);
}
static wontreturn void DieOom(void) {
Die("out of memory");
}
static void Appends(char **b, const char *s) {
if (appends(b, s) == -1) DieOom();
}
static void Appendd(char **b, const void *p, size_t n) {
if (appendd(b, p, n) == -1) DieOom();
}
size_t GetFdSize(int fd) {
struct stat st;
CHECK_NE(-1, fstat(fd, &st));
if (fstat(fd, &st)) {
DieSys("fstat");
}
return st.st_size;
}
@ -84,12 +102,11 @@ void Process(const char *p, const char *pe, const char *path, bool isheader) {
continue;
}
}
appendd(&output, p, p2 - p);
Appendd(&output, p, p2 - p);
}
if (noformat) {
appends(&output, "/* clang-format on */\n");
Appends(&output, "/* clang-format on */\n");
}
kprintf("finished%n");
}
void Visit(const char *path) {
@ -105,55 +122,40 @@ void Visit(const char *path) {
if (startswith(path, "libc/isystem/")) return;
isheader = endswith(path, ".h");
if (isheader && isinterned(visited, path)) return;
appends(&output, "\n\f\n/*!BEGIN ");
appends(&output, path);
appends(&output, " */\n\n");
Appends(&output, "\n\f\n/*!BEGIN ");
Appends(&output, path);
Appends(&output, " */\n\n");
intern(visited, path);
if ((fd = open(path, O_RDONLY)) == -1) {
fprintf(stderr, "error: %s: failed to open\n", path);
exit(1);
}
if ((fd = open(path, O_RDONLY)) == -1) DieSys(path);
if ((size = GetFdSize(fd))) {
kprintf("size 1 = %'zu%n", size);
CHECK_NE(MAP_FAILED,
(map = mmap(NULL, size, PROT_READ, MAP_PRIVATE, fd, 0)));
map = mmap(0, size, PROT_READ, MAP_PRIVATE, fd, 0);
if (map == MAP_FAILED) DieSys(path);
Process(map, map + size, path, isheader);
kprintf("size = %'zu%n", size);
CHECK_EQ(0, munmap(map, size), "p=%p z=%'zu path=%s", map, size, path);
if (munmap(map, size)) DieSys(path);
}
CHECK_EQ(0, close(fd));
}
ssize_t WriteAll(int fd, const char *p, size_t n) {
ssize_t rc;
size_t i, got;
for (i = 0; i < n;) {
rc = write(fd, p + i, n - i);
if (rc != -1) {
got = rc;
i += got;
} else if (errno != EINTR) {
return -1;
}
}
return i;
if (close(fd)) DieSys(path);
}
int main(int argc, char *argv[]) {
size_t bytes;
const char *src;
struct GetArgs ga;
ShowCrashReports();
prog = argv[0];
if (!prog) prog = "rollup";
visited = newinterner();
appends(&output, "#ifndef COSMOPOLITAN_H_\n");
appends(&output, "#define COSMOPOLITAN_H_\n");
Appends(&output, "#ifndef COSMOPOLITAN_H_\n");
Appends(&output, "#define COSMOPOLITAN_H_\n");
getargs_init(&ga, argv + 1);
while ((src = getargs_next(&ga))) {
Visit(src);
}
getargs_destroy(&ga);
appends(&output, "\n");
appends(&output, "#endif /* COSMOPOLITAN_H_ */\n");
CHECK_NE(-1, WriteAll(1, output, appendz(output).i));
Appends(&output, "\n");
Appends(&output, "#endif /* COSMOPOLITAN_H_ */\n");
bytes = appendz(output).i;
if (write(1, output, bytes) != bytes) {
DieSys(prog);
}
freeinterner(visited);
return 0;
}

340
tool/cosmocc/LICENSE.gpl2 Normal file
View file

@ -0,0 +1,340 @@
GNU GENERAL PUBLIC LICENSE
Version 2, June 1991
Copyright (C) 1989, 1991 Free Software Foundation, Inc.
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
Everyone is permitted to copy and distribute verbatim copies
of this license document, but changing it is not allowed.
Preamble
The licenses for most software are designed to take away your
freedom to share and change it. By contrast, the GNU General Public
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software--to make sure the software is free for all its users. This
General Public License applies to most of the Free Software
Foundation's software and to any other program whose authors commit to
using it. (Some other Free Software Foundation software is covered by
the GNU Library General Public License instead.) You can apply it to
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When we speak of free software, we are referring to freedom, not
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have the freedom to distribute copies of free software (and charge for
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To protect your rights, we need to make restrictions that forbid
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TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION
0. This License applies to any program or other work which contains
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<one line to give the program's name and a brief idea of what it does.>
Copyright (C) <year> <name of author>
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This program is distributed in the hope that it will be useful,
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Also add information on how to contact you by electronic and paper mail.
If the program is interactive, make it output a short notice like this
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Gnomovision version 69, Copyright (C) year name of author
Gnomovision comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
This is free software, and you are welcome to redistribute it
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The hypothetical commands `show w' and `show c' should show the appropriate
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You should also get your employer (if you work as a programmer) or your
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necessary. Here is a sample; alter the names:
Yoyodyne, Inc., hereby disclaims all copyright interest in the program
`Gnomovision' (which makes passes at compilers) written by James Hacker.
<signature of Ty Coon>, 1 April 1989
Ty Coon, President of Vice
This General Public License does not permit incorporating your program into
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GNU GENERAL PUBLIC LICENSE
Version 3, 29 June 2007
Copyright (C) 2007 Free Software Foundation, Inc. <http://fsf.org/>
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How to Apply These Terms to Your New Programs
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Also add information on how to contact you by electronic and paper mail.
If the program does terminal interaction, make it output a short
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The hypothetical commands `show w' and `show c' should show the appropriate
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You should also get your employer (if you work as a programmer) or school,
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For more information on this, and how to apply and follow the GNU GPL, see
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The GNU General Public License does not permit incorporating your program
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may consider it more useful to permit linking proprietary applications with
the library. If this is what you want to do, use the GNU Lesser General
Public License instead of this License. But first, please read
<http://www.gnu.org/philosophy/why-not-lgpl.html>.

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GNU LESSER GENERAL PUBLIC LICENSE
Version 2.1, February 1999
Copyright (C) 1991, 1999 Free Software Foundation, Inc.
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# Cosmopolitan Toolchain
This toolchain can be used to compile executables that run on Linux /
MacOS / Windows / FreeBSD / OpenBSD / NetBSD for both the x86_64 and
AARCH64 architectures. In addition to letting you create portable
binaries, your toolchain is itself comprised of portable binaries,
enabling you to have a consistent development environment that lets you
reach a broader audience from the platform(s) of your choosing.
## What's Included
This toolchain bundles GCC 11.2.0, Cosmopolitan Libc, LLVM LIBCXX, and
LLVM compiler-rt. Additional libraries were provided by Musl Libc, and
the venerable BSDs OSes. This lets you benefit from the awesome modern
GCC compiler with the strongest GPL barrier possible. The preprocessor
advertises cross compilers as both `__COSMOCC__` and `__COSMOPOLITAN__`
whereas `cosmocc` additionally defines `__FATCOSMOCC__`.
The `cosmocc` compiler is designed to generate deterministic output
across platforms. With this release we've confirmed that hello world
binary output is identical on Linux x86+Arm, MacOS x86+Arm, FreeBSD,
OpenBSD, and Windows. Please note that users who need reproducible
builds may also want to look into explicitly defining environment
variables like `LC_ALL=C` and `SOURCE_DATE_EPOCH=0`, in addition to
undefining macros such as `-U__DATE__` and `-U__TIME__`.
## Getting Started
Once your toolchain has been extracted, you can compile hello world:
```
bin/cosmocc -o hello hello.c # creates multi-os multi-arch binary
```
The `cosmocc` program is shorthand for `unknown-unknown-cosmo-cc`.
For advanced builds it's possible to use `x86_64-unknown-cosmo-cc` and
`aarch64-unknown-cosmo-cc` separately and then join the results together
with the provided `apelink` program. Lastly, the `x86_64-linux-cosmo-cc`
and `aarch64-linux-cosmo-cc` toolchain is the actual physical compiler,
but it's not intended to be called directly. Both cross compilers are
aliases for the `cosmocc` script, which is a thin wrapper around the
Linux toolchain.
## Installation
Your toolchain uses relative paths so it doesn't need to be installed to
any particular system folder, and it needn't be added to your `$PATH`.
There's no external dependencies required to use this toolchain, other
than the UNIX shell.
It's recommended that you install APE loader systemwide, rather than
depending on the APE shell script to self-extract a user's own version.
Apple M1 users should compile `cc -o ape bin/ape-m1.c` and move `ape` to
`/usr/local/bin/ape`. All other platforms use `/usr/bin/ape` as the
canonical path. Linux and BSD users can simply copy `bin/ape.elf` to
`/usr/bin/ape`. MacOS x86-64 users will want `bin/ape.macho`. On Linux,
it's also a good idea to have APE Loader registered with binfmt_misc.
```sh
sudo sh -c "echo ':APE:M::MZqFpD::/usr/bin/ape:' >/proc/sys/fs/binfmt_misc/register"
sudo sh -c "echo ':APE-jart:M::jartsr::/usr/bin/ape:' >/proc/sys/fs/binfmt_misc/register"
sudo sh -c "echo ':qemu-aarch64:M::\x7fELF\x02\x01\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x02\x00\xb7\x00:\xff\xff\xff\xff\xff\xff\xff\x00\xff\xff\xff\xff\xff\xff\xff\xff\xfe\xff\xff\xff:/usr/bin/qemu-aarch64:CF' >/proc/sys/fs/binfmt_misc/register"
```
Qemu-user is recommended since it's what we've had the most success with
when cross-compiling fat binaries for popular autoconf-based open source
projects. However APE and Cosmo don't depend on it being there.
If you ever need to convert your APE binaries to the platform native
format, this toolchain provides an `assimilate` program which does just
that. Some example use cases would be (1) setuid support, (2) making GDB
less hairy, and (3) code signing. By default, assimilate will choose the
format used by the host system; however it's also possible to explicitly
convert APE programs to any architectures / OS combination. For further
details on usage, run the `assimilate -h` command.
## Gotchas
If you use zsh and have trouble running APE programs try `sh -c ./prog`
or simply upgrade to zsh 5.9+ (since we patched it two years ago). The
same is the case for Python `subprocess`, old versions of fish, etc.
On Apple Silicon, `aarch64-unknown-cosmo-cc` produces ELF binaries. If
you build a hello world program, then you need to say `ape ./hello` to
run it. Note this isn't an issue for `cosmocc` which will wrap the ELF
program in a shell script that'll compile your APE loader automatically
as needed. This also isn't an issue if your login shell was built using
Cosmopolitan Libc, e.g. <https://cosmo.zip/pub/cosmos/bin/bash> because
Cosmo's `execve()` implementation will seamlessly launch ELF files via
your APE Loader.
On Windows, you need a shell in order to run the shell script wrappers
from this toolchain. It's recommended that you download Cosmos binaries
to set up your POSIX userspace. <https://cosmo.zip/pub/cosmos/bin/dash>
could be your `C:\bin\sh` shell (which in Cosmo-speak is `/c/bin/sh`).
The cosmocc shell scripts also depend on programs like `mkdir`, `less`,
`cat`, and `kill` which are available in Cosmos.
When `cosmocc` is run in preprocessor-only mode, it'll use the x86_64
Linux toolchain with macros like `__x86_64__` and `__k8__` undefined.
This might confuse software that's using the C preprocessor to generate
tricked-out assembly instructions. It's not possible to build these
kinds of codebases using `cosmocc` which is just a convenient wrapper
around the cross compilers, which would be a better choice to use in
this type of circumstance.
## About
This toolchain is based on GCC. It's been modified too. We wrote a 2kLOC
patch which gives the C language the ability to `switch (errno) { case
EINVAL: ... }` in cases where constants like `EINVAL` are linkable
symbols. Your code will be rewritten in such cases to use a series of if
statements instead, so that Cosmopolitan Libc's system constants will
work as expected. Our modifications to GNU GCC are published under the
ISC license at <https://github.com/ahgamut/gcc/tree/portcosmo-11.2>. The
binaries you see here were first published at
<https://github.com/ahgamut/superconfigure/releases/tag/z0.0.18> which
is regularly updated.
## Legal
Your Cosmopolitan toolchain is based off Free Software such as GNU GCC.
You have many freedoms to use and modify this software, as described by
the LICENSE files contained within this directory. The software you make
using this toolchain will not be encumbered by the GPL, because we don't
include any GPL licensed headers or runtime libraries. All Cosmopolitan
Libc runtime libraries are exclusively under permissive notice licenses,
e.g. ISC, MIT, BSD, etc. There are many copyright notices with the names
of people who've helped build your toolchain. You have an obligation to
distribute those notices along with your binaries. Cosmopolitan makes
that easy. Your C library is configured to use `.ident` directives to
ensure the relevant notices are automatically embedded within your
binaries. You can view them using tools like `less <bin/foo`.
## Contact
For further questions and inquiries regarding this toolchain, feel free
to contact Justine Tunney <jtunney@gmail.com>.
## See Also
- <https://cosmo.zip/> for downloadable binaries built with cosmocc
- <https://github.com/ahgamut/superconfigure/> for cosmocc build recipes

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aarch64-linux-cosmo-addr2line

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aarch64-linux-cosmo-ar

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aarch64-linux-cosmo-as

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cosmocross

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cosmocross

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#!/bin/sh
FIRST=1
for x; do
if [ $FIRST -eq 1 ]; then
set --
FIRST=0
fi
if [ x"$x" = x"-s" ]; then
continue
fi
set -- "$@" "$x"
done
exec install "$@"

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aarch64-linux-cosmo-nm

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aarch64-linux-cosmo-objcopy

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aarch64-linux-cosmo-objdump

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aarch64-linux-cosmo-strip

15
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#!/bin/sh
BIN=${0%/*}
set -- -apifCe "$@"
if [ -n "$ADDR2LINE" ]; then
exec "$ADDR2LINE" "$@"
fi
for arch in x86_64 aarch64; do
"$BIN/$arch-linux-cosmo-addr2line" "$@" 2>/dev/null && exit
done
echo "error: addr2line failed" >&2
exit 1

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#!/bin/sh
BIN=${0%/*}
PROG=${0##*/}
fatal_error() {
echo "$PROG: $1" >&2
exit 1
}
AR_X86_64="$BIN/x86_64-linux-cosmo-ar"
AR_AARCH64="$BIN/aarch64-linux-cosmo-ar"
if [ "$1" = "--version" ]; then
# note: only the underlying gnu compiler binaries are gpl
# our shell script is released with the isc license
cat <<EOF
$PROG (GNU Binutils) 2.38
Copyright (C) 2022 Free Software Foundation, Inc.
This program is free software; you may redistribute it under the terms of
the GNU General Public License version 3 or (at your option) any later version.
This program has absolutely no warranty.
EOF
exit 0
elif [ "$1" = "--help" ]; then
"$AR_X86_64" --help |
sed "s!$AR_X86_64!$PROG!g" 2>/dev/null ||
"$AR_X86_64" --help
exit
fi
FIRST=1
STATE=0
OUTPUT_X86_64=
OUTPUT_AARCH64=
INPUTS=
for x; do
if [ $FIRST -eq 1 ]; then
set --
FIRST=0
fi
if [ $STATE -eq 0 ]; then
if [ x"$x" != x"${x#--*}" ]; then # startswith(x, "--")
set -- "$@" "$x" # this is a flag
else
set -- "$@" "$x" # command argument, e.g. rcu, rcsD
STATE=1
fi
elif [ $STATE -eq 1 ]; then
OUTPUT_X86_64=$x
STATE=2
elif [ x"$x" != x"${x#* }" ]; then
fatal_error "input arguments containing spaces unsupported"
elif [ x"$x" != x"${x#@}" ]; then
fatal_error "input argument @file not supported yet"
elif [ -z "$INPUTS" ]; then
INPUTS=$x
else
INPUTS="$INPUTS $x"
fi
done
if [ -z "$OUTPUT_X86_64" ]; then
fatal_error "missing output path"
fi
mangle_object_path() {
path=$1
arch=$2
outdir=${path%/*}
outbas=${path##*/}
if [ x"$outdir" = x"$path" ]; then
outdir=
elif [ -n "$outdir" ]; then
outdir="$outdir/"
fi
if [ ! -d "$outdir.$arch" ]; then
mkdir -p "$outdir.$arch" || Exit
fi
mangled_path="${outdir}.$arch/$outbas"
}
OBJECTS_X86_64=
OBJECTS_AARCH64=
for x in $INPUTS; do
if [ ! -f "$x" ]; then
fatal_error "$x: no such file"
fi
mangle_object_path "$x" aarch64
if [ ! -f "$mangled_path" ]; then
fatal_error "$x: missing concomitant $mangled_path file"
fi
OBJECTS_X86_64="${OBJECTS_X86_64} $x"
OBJECTS_AARCH64="${OBJECTS_AARCH64} $mangled_path"
done
mangle_object_path "$OUTPUT_X86_64" aarch64
OUTPUT_AARCH64="$mangled_path"
"$AR_X86_64" "$@" "$OUTPUT_X86_64" $OBJECTS_X86_64 &
pid1=$!
"$AR_AARCH64" "$@" "$OUTPUT_AARCH64" $OBJECTS_AARCH64 &
pid2=$!
if ! wait $pid1; then
kill $pid2 2>/dev/null
wait
exit 1
fi
wait $pid2 || exit

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#!/bin/sh
# fat cosmopolitan c/c++ compiler
# https://github.com/jart/cosmopolitan
# https://cosmo.zip/
BIN=${0%/*}
PROG=${0##*/}
ORIGINAL="$0 $*"
GCC_VERSION=11.2.0
TMPDIR=${TMPDIR:-/tmp}
if [ "$1" = "--version" ]; then
cat <<EOF
$PROG (GCC) $GCC_VERSION
Copyright (c) 2023 Justine Alexandra Roberts Tunney
Cosmopolitan Libc and LLVM libcxx/compiler-rt are subject to non-GPL
notice licenses, e.g. ISC, MIT, etc. Your compiled programs must embed
our copyright notices. This toolchain is configured to do so default.
Cosmopolitan comes with absolutely NO WARRANTY of any kind.
For more information, see the Cosmopolitan LICENSE files.
Copyright (C) 2019 Free Software Foundation, Inc.
This launches GNU GCC/Binutils subprocesses, which is free software; see
Cosmopolitan's third_party/gcc/ for source code and copying conditions.
There is NO warranty; not even for MERCHANTABILITY or FITNESS FOR A
PARTICULAR PURPOSE.
EOF
exit
fi
if [ "$1" = "--help" ]; then
if [ -t 1 ]; then
exec less "$BIN/../README.md"
else
exec cat "$BIN/../README.md"
fi
fi
TEMP_FILES=
SAVE_TEMPS=0
Exit() {
rc=${1:-$?}
if [ $SAVE_TEMPS -eq 0 ]; then
rm -f $TEMP_FILES
fi
exit $rc
}
show_warning() {
echo "$PROG: warning: $1" >&2
}
fatal_error() {
echo "$PROG: fatal error: $1" >&2
echo "compilation terminated." >&2
Exit 1
}
log_original() {
if [ -n "$BUILDLOG" ]; then
printf '# %s\n' "$ORIGINAL" >>"$BUILDLOG"
fi
}
log_command() {
if [ -n "$BUILDLOG" ]; then
printf '(cd %s; %s)\n' "$PWD" "$*" >>"$BUILDLOG"
fi
}
if [ x"$TMPDIR" != x"${TMPDIR#* }" ]; then
fatal_error '$TMPDIR containing spaces not supported'
elif [ ! -d "$TMPDIR" ]; then
if ! mkdir -p "$TMPDIR" 2>/dev/null; then
fatal_error "$TMPDIR: not a directory"
fi
fi
OPT=
ARGS=
FLAGS=
OUTPUT=
MCOSMO=0
INTENT=ld
NEED_JOIN=
NEED_EQUAL=
NEED_OUTPUT=
APELINKFLAGS=
FLAGS_X86_64=
FLAGS_AARCH64=
INPUT_FILE_COUNT=0
for x; do
if [ x"$x" != x"${x#* }" ]; then
fatal_error "arguments containing spaces unsupported: $x"
fi
if [ -n "$NEED_OUTPUT" ]; then
NEED_OUTPUT=
OUTPUT=$x
continue
elif [ -n "$NEED_JOIN" ]; then
x="${NEED_JOIN}${x}"
NEED_JOIN=
elif [ -n "$NEED_EQUAL" ]; then
x="${NEED_EQUAL}=${x}"
NEED_EQUAL=
elif [ x"$x" = x"-" ] || # is alias for stdin
[ x"$x" = x"${x#-*}" ]; then # !startswith(x, "-")
if [ x"$x" != x"${x%.s}" ] ||
[ x"$x" != x"${x%.S}" ]; then
fatal_error "$x: assembler input files not supported"
elif [ x"$x" != x"${x%.so}" ] ||
[ x"$x" != x"${x%.dll}" ] ||
[ x"$x" != x"${x%.dylib}" ]; then
fatal_error "$x: dynamic shared object input files not supported"
elif [ x"$x" != x"-" ] && [ ! -f "$x" ]; then
fatal_error "$x: no such file"
fi
INPUT_FILE_COUNT=$((INPUT_FILE_COUNT + 1))
ARGS="$ARGS $x" # don't add to $FLAGS array
continue
elif [ x"$x" = x"-o" ]; then
NEED_OUTPUT=1
continue
elif [ x"$x" != x"${x#-o}" ]; then # startswith(x, "-o")
OUTPUT=${x#-o}
continue
elif [ x"$x" != x"${x#-O}" ]; then # startswith(x, "-O")
OPT=$x
elif [ x"$x" = x"-c" ]; then
INTENT=cc
elif [ x"$x" = x"-E" ]; then
INTENT=cpp
elif [ x"$x" = x"-s" ]; then
APELINKFLAGS="$APELINKFLAGS -s"
continue
elif [ x"$x" = x"-v" ]; then
exec 3<&2 # dup2(2, 3) b/c stderr will be redirected later
BUILDLOG=/dev/fd/3
continue
elif [ x"$x" = x"-save-temps" ]; then
SAVE_TEMPS=1
elif [ x"$x" = x"-mcosmo" ]; then
MCOSMO=1
continue
elif [ x"$x" = x"-fomit-frame-pointer" ]; then
# Quoth Apple: "The frame pointer register must always address a
# valid frame record. Some functions — such as leaf functions or
# tail calls — may opt not to create an entry in this list. As a
# result, stack traces are always meaningful, even without debug
# information."
x="-momit-leaf-frame-pointer -foptimize-sibling-calls"
elif [ x"$x" = x"-r" ] ||
[ x"$x" = x"-S" ] ||
[ x"$x" = x"-pie" ] ||
[ x"$x" = x"-frtti" ] ||
[ x"$x" = x"-shared" ] ||
[ x"$x" = x"-nostdlib" ] ||
[ x"$x" = x"-mred-zone" ] ||
[ x"$x" = x"-fexceptions" ] ||
[ x"$x" = x"-fsanitize=thread" ]; then
fatal_error "$x flag not supported"
elif [ x"$x" = x"-mno-red-zone" ]; then
# "Any memory below the stack beyond the red zone is considered
# volatile and may be modified by the operating system at any time."
# https://devblogs.microsoft.com/oldnewthing/20190111-00/?p=100685
continue
elif [ x"$x" = x"-fpic" ] || [ x"$x" = x"-fPIC" ]; then
# no support for building dynamic shared objects yet. reports
# indicate that ignoring these flags, helps let autoconf know
continue
elif [ x"$x" = x"-Werror" ] || \
[ x"$x" = x"-pedantic-errors" ]; then
# this toolchain is intended for building other people's code
# elevating warnings into errors, should only be done by devs
continue
elif [ x"$x" = x"-static-libgcc" ] || \
[ x"$x" = x"-shared-libgcc" ]; then
# cosmopolitan.a always has llvm compiler runtime static code
continue
elif [ x"$x" = x"-march=native" ]; then
fatal_error "-march=native can't be used when building fat binaries"
elif [ x"$x" != x"${x#-Xx86_64}" ]; then
x=${x#-Xx86_64} # e.g. -Xx86_64,-msse3,-mavx,-mavx2,-mf16c,-mfma
FLAGS_X86_64="$FLAGS_X86_64 ${x//,/ }"
continue
elif [ x"$x" != x"${x#-Xaarch64}" ]; then
x=${x#-Xaarch64}
FLAGS_aarch64="$FLAGS_aarch64 ${x//,/ }"
continue
elif [ x"$x" = x"-dumpversion" ]; then
echo $GCC_VERSION
Exit 0
elif [ x"$x" = x"-e" ] ||
[ x"$x" = x"-z" ] ||
[ x"$x" = x"-T" ] ||
[ x"$x" = x"-L" ] ||
[ x"$x" = x"-I" ] ||
[ x"$x" = x"-D" ] ||
[ x"$x" = x"-U" ] ||
[ x"$x" = x"-iquote" ] ||
[ x"$x" = x"-isystem" ] ||
[ x"$x" = x"-include" ]; then
NEED_JOIN=$x
continue
elif [ x"$x" = x"--param" ]; then
NEED_EQUAL=$x
continue
fi
FLAGS="$FLAGS $x"
ARGS="$ARGS $x"
done
if [ $INPUT_FILE_COUNT -eq 0 ]; then
fatal_error "no input files"
elif [ -z "$INPUT" ] &&
[ $INTENT != ld ] &&
[ $INPUT_FILE_COUNT -gt 1 ]; then
fatal_error "cannot specify '-o' with '-c', or '-E' with multiple files"
fi
PLATFORM="-D__COSMOPOLITAN__ -D__COSMOCC__ -D__FATCOSMOCC__"
PREDEF="-include libc/integral/normalize.inc"
CPPFLAGS="-fno-pie -nostdinc -fno-math-errno -isystem $BIN/../include"
CFLAGS="-fportcosmo -fno-dwarf2-cfi-asm -fno-unwind-tables -fno-asynchronous-unwind-tables -fno-semantic-interposition"
LDFLAGS="-static -nostdlib -no-pie -fuse-ld=bfd -Wl,-z,norelro -Wl,--gc-sections"
PRECIOUS="-fno-omit-frame-pointer"
if [ x"$OPT" != x"-Os" ] && [ x"$MODE" != x"tiny" ]; then
CFLAGS="$CFLAGS -fno-optimize-sibling-calls -mno-omit-leaf-frame-pointer"
fi
CC_X86_64="$BIN/x86_64-linux-cosmo-gcc"
CC_AARCH64="$BIN/aarch64-linux-cosmo-gcc"
if [ x"$PROG" != x"${PROG%++}" ]; then
CC_X86_64="$BIN/x86_64-linux-cosmo-g++"
CC_AARCH64="$BIN/aarch64-linux-cosmo-g++"
CFLAGS="$CFLAGS -fno-rtti -fno-exceptions -fuse-cxa-atexit"
fi
CRT_X86_64="$BIN/../x86_64-linux-cosmo/lib/ape.o $BIN/../x86_64-linux-cosmo/lib/crt.o"
CPPFLAGS_X86_64="$CPPFLAGS -mno-red-zone"
CFLAGS_X86_64="$CFLAGS -mno-tls-direct-seg-refs"
LDFLAGS_X86_64="$LDFLAGS -L$BIN/../x86_64-linux-cosmo/lib -Wl,-T,$BIN/../x86_64-linux-cosmo/lib/ape.lds -Wl,-z,common-page-size=4096 -Wl,-z,max-page-size=16384"
LDLIBS_X86_64="-lcosmo"
if [ $MCOSMO -eq 1 ]; then
CPPFLAGS_X86_64="${CPPFLAGS_X86_64} -D_COSMO_SOURCE"
fi
CRT_AARCH64="$BIN/../aarch64-linux-cosmo/lib/crt.o"
CPPFLAGS_AARCH64="$CPPFLAGS"
CFLAGS_AARCH64="$CFLAGS -ffixed-x18 -ffixed-x28 -mno-outline-atomics"
LDFLAGS_AARCH64="$LDFLAGS -L$BIN/../aarch64-linux-cosmo/lib -Wl,-T,$BIN/../aarch64-linux-cosmo/lib/aarch64.lds -Wl,-z,common-page-size=16384 -Wl,-z,max-page-size=16384"
LDLIBS_AARCH64="-lcosmo"
if [ x"$OPT" != x"-Os" ] && [ x"$MODE" != x"tiny" ]; then
CFLAGS_X86_64="${CFLAGS_X86_64} -fpatchable-function-entry=18,16"
CFLAGS_AARCH64="${CFLAGS_AARCH64} -fpatchable-function-entry=7,6"
fi
if [ x"$PROG" != x"${PROG%++}" ]; then
LDLIBS_X86_64="-lcxx ${LDLIBS_X86_64}"
LDLIBS_AARCH64="-lcxx ${LDLIBS_AARCH64}"
fi
log_original
if [ $INTENT = cpp ]; then
if [ -n "$OUTPUT" ]; then
ARGS="$ARGS -o$OUTPUT"
fi
set -- \
"$CC_X86_64" \
-U__k8 \
-U__k8__ \
-U__amd64 \
-U__amd64__ \
-U__x86_64 \
-U__x86_64__ \
-U__SSE__ \
-U__SSE2__ \
-U__SSE2_MATH__ \
-mno-red-zone \
$PLATFORM \
$CPPFLAGS \
$ARGS
log_command "$@"
exec "$@"
fi
mangle_object_path() {
path=$1
arch=$2
outdir=${path%/*}
outbas=${path##*/}
if [ x"$outdir" = x"$path" ]; then
outdir=
elif [ -n "$outdir" ]; then
outdir="$outdir/"
fi
if [ ! -d "$outdir.$arch" ]; then
mkdir -p "$outdir.$arch" || Exit
fi
mangled_path="${outdir}.$arch/$outbas"
}
mktemper() {
"$BIN/mktemper" \
"$TMPDIR/fatcosmocc.XXXXXXXXXXXXX$1"
}
build_object() {
out2=$(mktemper .txt) || Exit
TEMP_FILES="${TEMP_FILES} $out2"
(
set -- \
"$CC_X86_64" \
-o"$OUTPUT_X86_64" \
$PLATFORM \
$PREDEF \
$CFLAGS_X86_64 \
$CPPFLAGS_X86_64 \
"$@" \
$FLAGS_X86_64 \
$PRECIOUS
log_command "$@"
"$@" || exit
set -- \
"$BIN/fixupobj" \
"$OUTPUT_X86_64"
log_command "$@"
exec "$@"
) &
pid1=$!
(
set -- \
"$CC_AARCH64" \
-o"$OUTPUT_AARCH64" \
$PLATFORM \
$PREDEF \
$CFLAGS_AARCH64 \
$CPPFLAGS_AARCH64 \
"$@" \
$FLAGS_AARCH64 \
$PRECIOUS
log_command "$@"
"$@" || exit
set -- \
"$BIN/fixupobj" \
"$OUTPUT_AARCH64"
log_command "$@"
exec "$@"
) 2>"$out2" &
pid2=$!
if ! wait $pid1; then
kill $pid2 2>/dev/null
wait
Exit 1
fi
if ! wait $pid2; then
echo "$PROG: x86_64 succeeded but aarch64 failed to build object" >&2
cat "$out2" >&2
Exit 1
fi
}
# turn source files into objects
LDARGS_X86_64=
LDARGS_AARCH64=
for x in $ARGS; do
if [ x"$x" != x"-" ] && # is alias for stdin
[ x"$x" != x"${x#-*}" ]; then # startswith(x, "-")
# this argument is a flag
LDARGS_X86_64="${LDARGS_X86_64} $x"
if [ x"$x" != x"${x#-L}" ]; then # startswith(x, "-L")
x="$x/.aarch64"
fi
LDARGS_AARCH64="${LDARGS_AARCH64} $x"
else
# this argument is an input file
if [ x"$x" != x"${x%.o}" ] ||
[ x"$x" != x"${x%.a}" ]; then
if [ $INTENT = cc ]; then
show_warning "$x: linker input file unused because linking not done"
else
mangle_object_path "$x" aarch64
if [ ! -f "$mangled_path" ]; then
fatal_error "$x: linker input missing concomitant $mangled_path file"
fi
LDARGS_X86_64="${LDARGS_X86_64} $x"
LDARGS_AARCH64="${LDARGS_AARCH64} $mangled_path"
fi
elif [ $INTENT = cc ]; then
if [ -n "$OUTPUT" ]; then
# e.g. `cc -c -o bar.o foo.c` is specified by user
OUTPUT_X86_64=$OUTPUT
mangle_object_path "$OUTPUT" aarch64
OUTPUT_AARCH64="$mangled_path"
build_object $FLAGS -c "$x"
else
# e.g. `cc -c dir/foo.c` builds foo.o
o=${x##*/}
OUTPUT_X86_64="${o%.*}.o"
mangle_object_path "${o%.*}.o" aarch64
OUTPUT_AARCH64="$mangled_path"
build_object $FLAGS -c "$x"
fi
else
# e.g. `cc foo.c` should build a.out
if [ -z "$OUTPUT" ]; then
OUTPUT=a.out
fi
# e.g. `cc -o foo foo.c` should *not* build foo.o
OUTPUT_X86_64=$(mktemper .o) || Exit
OUTPUT_AARCH64=$(mktemper .o) || Exit
TEMP_FILES="${TEMP_FILES} ${OUTPUT_X86_64} ${OUTPUT_AARCH64}"
build_object $FLAGS -c "$x"
LDARGS_X86_64="${LDARGS_X86_64} ${OUTPUT_X86_64}"
LDARGS_AARCH64="${LDARGS_AARCH64} ${OUTPUT_AARCH64}"
fi
fi
done
if [ $INTENT != ld ]; then
Exit
fi
OUTPUT_X86_64=$(mktemper ".com.dbg") || Exit
OUTPUT_AARCH64=$(mktemper ".aarch64.elf") || Exit
out2=$(mktemper .txt) || Exit
TEMP_FILES="${TEMP_FILES} $out2"
(
set -- \
"$CC_X86_64" \
-o"$OUTPUT_X86_64"\
$CRT_X86_64 \
$LDFLAGS_X86_64 \
$LDARGS_X86_64 \
$LDLIBS_X86_64
log_command "$@"
"$@" || exit
set -- \
"$BIN/fixupobj" \
"$OUTPUT_X86_64"
log_command "$@"
exec "$@"
) &
pid1=$!
(
set -- \
"$CC_AARCH64" \
-o"$OUTPUT_AARCH64"\
$CRT_AARCH64 \
$LDFLAGS_AARCH64 \
$LDARGS_AARCH64 \
$LDLIBS_AARCH64
log_command "$@"
"$@" || exit
set -- \
"$BIN/fixupobj" \
"$OUTPUT_AARCH64"
log_command "$@"
exec "$@"
) 2>"$out2" &
pid2=$!
if ! wait $pid1; then
kill $pid2 2>/dev/null
wait
Exit 1
fi
if ! wait $pid2; then
echo "$PROG: x86_64 succeeded but aarch64 failed to link executable" >&2
cat "$out2" >&2
Exit 1
fi
set -- \
"$BIN/apelink" \
-l "$BIN/ape.elf" \
-l "$BIN/ape.aarch64" \
-M "$BIN/ape-m1.c" \
-o "$OUTPUT" \
$APELINKFLAGS \
"$OUTPUT_X86_64" \
"$OUTPUT_AARCH64"
log_command "$@"
"$@" || Exit
set -- \
"$BIN/pecheck" "$OUTPUT"
log_command "$@"
"$@" || Exit
if [ $INTENT = ld ] && [ $SAVE_TEMPS -eq 0 ]; then
mv -f "$OUTPUT_X86_64" "${OUTPUT%.com}.com.dbg" || Exit
mv -f "$OUTPUT_AARCH64" "${OUTPUT%.com}.aarch64.elf" || Exit
fi
Exit

238
tool/cosmocc/bin/cosmocross Executable file
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#!/bin/sh
# cosmopolitan c/c++ cross compiler
# https://github.com/jart/cosmopolitan
# https://cosmo.zip/
BIN=${0%/*}
PROG=${0##*/}
GCC_VERSION=11.2.0
if [ "$1" = "--version" ]; then
cat <<EOF
$PROG (GCC) $GCC_VERSION
Copyright (c) 2023 Justine Alexandra Roberts Tunney
Cosmopolitan Libc and LLVM libcxx/compiler-rt are subject to non-GPL
notice licenses, e.g. ISC, MIT, etc. Your compiled programs must embed
our copyright notices. This toolchain is configured to do so default.
Cosmopolitan comes with absolutely NO WARRANTY of any kind.
For more information, see the Cosmopolitan LICENSE files.
Copyright (C) 2019 Free Software Foundation, Inc.
This launches GNU GCC/Binutils subprocesses, which is free software; see
Cosmopolitan's third_party/gcc/ for source code and copying conditions.
There is NO warranty; not even for MERCHANTABILITY or FITNESS FOR A
PARTICULAR PURPOSE.
EOF
exit
fi
if [ "$1" = "--help" ]; then
if [ -t 1 ]; then
exec less "$BIN/../README.md"
else
exec cat "$BIN/../README.md"
fi
fi
fatal_error() {
echo "$PROG: fatal error: $1" >&2
echo "compilation terminated." >&2
exit 1
}
log_command() {
if [ -n "$BUILDLOG" ]; then
printf '# %s\n(cd %s; %s)\n' "$ORIGINAL" "$PWD" "$*" >>"$BUILDLOG"
fi
}
ORIGINAL="$0 $*"
PLATFORM="-D__COSMOPOLITAN__ -D__COSMOCC__"
PREDEF="-include libc/integral/normalize.inc"
CFLAGS="-fportcosmo -fno-dwarf2-cfi-asm -fno-unwind-tables -fno-asynchronous-unwind-tables -fno-semantic-interposition"
CPPFLAGS="-fno-pie -nostdinc -fno-math-errno -isystem $BIN/../include"
LDFLAGS="-static -no-pie -nostdlib -fuse-ld=bfd"
APEFLAGS="-Wl,--gc-sections"
PRECIOUS="-fno-omit-frame-pointer"
CROSS=1
ARCH=${PROG%%-*}
if [ x"$ARCH" = x"$PROG" ]; then
fatal_error "cosmocross must be run via cross compiler"
fi
CC="$BIN/$ARCH-linux-cosmo-gcc"
CRT="$BIN/../$ARCH-linux-cosmo/lib/crt.o"
LDLIBS="-lcosmo"
LDFLAGS="$LDFLAGS -L$BIN/../$ARCH-linux-cosmo/lib"
if [ x"$PROG" != x"${PROG%++}" ]; then
CC="$BIN/$ARCH-linux-cosmo-g++"
CFLAGS="$CFLAGS -fno-rtti -fno-exceptions -fuse-cxa-atexit"
LDLIBS="-lcxx $LDLIBS"
fi
PAGESZ=4096
if [ x"$ARCH" = x"x86_64" ]; then
OBJCOPYFLAGS="-S -O binary"
CRT="$BIN/../$ARCH-linux-cosmo/lib/ape-no-modify-self.o $CRT"
CPPFLAGS="$CPPFLAGS -mno-red-zone"
CFLAGS="$CFLAGS -mno-tls-direct-seg-refs"
LDFLAGS="$LDFLAGS -Wl,-T,$BIN/../$ARCH-linux-cosmo/lib/ape.lds"
elif [ x"$ARCH" = x"aarch64" ]; then
OBJCOPYFLAGS="-S"
PAGESZ=16384
CFLAGS="$CFLAGS -ffixed-x18 -ffixed-x28 -mno-outline-atomics"
LDFLAGS="$LDFLAGS -Wl,-T,$BIN/../$ARCH-linux-cosmo/lib/aarch64.lds"
else
fatal_error "$ARCH: unsupported architecture"
fi
LDFLAGS="$LDFLAGS -Wl,-z,common-page-size=$PAGESZ -Wl,-z,max-page-size=16384"
OPT=
FIRST=1
OUTPUT=
SFLAG=0
INTENT=ld
GOT_SOME=0
NEED_OUTPUT=
RELOCATABLE=0
for x; do
if [ $FIRST -eq 1 ]; then
set --
FIRST=0
fi
if [ -n "$NEED_OUTPUT" ]; then
NEED_OUTPUT=
OUTPUT=$x
set -- "$@" "$x"
continue
fi
if [ x"$x" = x"-" ] || # is an argument
[ x"$x" = x"${x#-*}" ]; then # !startswith(x, "-")
GOT_SOME=1
elif [ x"$x" = x"-static-libstdc++" ]; then
continue
elif [ x"$x" = x"-static-libgcc" ]; then
continue
elif [ x"$x" != x"${x#-O}" ]; then
OPT=$x
elif [ x"$x" = x"-c" ]; then
INTENT=cc
elif [ x"$x" = x"-s" ]; then
SFLAG=1
continue
elif [ x"$x" = x"-r" ]; then
RELOCATABLE=1
elif [ x"$x" = x"-E" ]; then
INTENT=cpp
elif [ x"$x" = x"-o" ]; then
NEED_OUTPUT=1
elif [ x"$x" = x"-mcosmo" ]; then
CPPFLAGS="$CPPFLAGS -D_COSMO_SOURCE"
continue
elif [ x"$x" != x"${x#-o}" ]; then
OUTPUT=${x#-o}
elif [ x"$x" = x"-fpic" ]; then
continue
elif [ x"$x" = x"-fPIC" ]; then
continue
elif [ x"$x" = x"-r" ] ||
[ x"$x" = x"-pie" ] ||
[ x"$x" = x"-frtti" ] ||
[ x"$x" = x"-shared" ] ||
[ x"$x" = x"-nostdlib" ] ||
[ x"$x" = x"-mred-zone" ] ||
[ x"$x" = x"-fexceptions" ] ||
[ x"$x" = x"-fsanitize=thread" ]; then
echo "$PROG: $x not supported" >&2
exit 1
elif [ x"$x" = x"-fomit-frame-pointer" ]; then
# Quoth Apple "The frame pointer register must always address a
# valid frame record. Some functions — such as leaf functions or
# tail calls — may opt not to create an entry in this list. As a
# result, stack traces are always meaningful, even without debug
# information."
set -- "$@" -momit-leaf-frame-pointer -foptimize-sibling-calls
continue
elif [ x"$x" != x"${x#-Werror}" ] || \
[ x"$x" = x"-pedantic-errors" ]; then
# this toolchain is intended for building other people's code
# elevating warnings into errors, should only be done by devs
continue
elif [ x"$x" = x"-march=native" ]; then
if [ $CROSS -eq 0 ]; then
set -- "$@" $("$BIN/march-native")
else
fatal_error "-march=native can't be used when cross compiling"
fi
continue
elif [ x"$x" = x"-dumpversion" ]; then
echo $GCC_VERSION
exit 0
elif [ x"$x" = x"-Wl,--version" ]; then
GOT_SOME=1
elif [ x"$x" = x"-dumpmachine" ]; then
GOT_SOME=1
fi
set -- "$@" "$x"
done
if [ "$GOT_SOME" -eq 0 ]; then
fatal_error "no input files"
fi
if [ $RELOCATABLE -eq 1 ]; then
LDFLAGS="$LDFLAGS -r"
fi
# support --ftrace unless optimizing for size
if [ x"$OPT" != x"-Os" ] && # $OPT != -Os
[ x"${MODE%tiny}" = x"${MODE}" ]; then # $MODE not in (tiny, aarch64-tiny)
if [ x"$ARCH" = x"x86_64" ]; then
CFLAGS="$CFLAGS -fpatchable-function-entry=18,16"
elif [ x"$ARCH" = x"aarch64" ]; then
CFLAGS="$CFLAGS -fpatchable-function-entry=7,6"
fi
fi
# maximize frame pointers unless optimizing for size
if [ x"$OPT" != x"-Os" ] && # $OPT != "-Os"
[ x"$MODE" != x"${MODE%tiny}" ]; then # endswith($MODE, "tiny")
CFLAGS="$CFLAGS -fno-optimize-sibling-calls -mno-omit-leaf-frame-pointer"
fi
if [ $INTENT = cpp ]; then
set -- "$CC" $PLATFORM $CPPFLAGS "$@"
elif [ $INTENT = cc ]; then
set -- "$CC" $PLATFORM $PREDEF $CFLAGS $CPPFLAGS "$@" $PRECIOUS
else
set -- "$CC" $PLATFORM $PREDEF $CFLAGS $CPPFLAGS $CRT "$@" $LDFLAGS $LDLIBS $PRECIOUS
fi
log_command "$@"
"$@" || exit
if [ -n "$OUTPUT" ] && [ -f "$OUTPUT" ]; then
if [ $INTENT = cc ] || [ $INTENT = ld ]; then
"$BIN/fixupobj" "$OUTPUT" || exit
fi
if [ $INTENT = ld ]; then
if [ x"$OUTPUT" != x"${OUTPUT%.com}" ] ||
[ x"$OUTPUT" != x"${OUTPUT%.exe}" ]; then
# cosmocc -o foo.com ...
# -> foo.com (ape)
# -> foo.com.dbg (elf)
mv -f "$OUTPUT" "$OUTPUT.dbg" || exit
"$BIN/$ARCH-linux-cosmo-objcopy" \
$OBJCOPYFLAGS \
"$OUTPUT.dbg" \
"$OUTPUT" || exit
"$BIN/zipcopy" \
"$OUTPUT.dbg" \
"$OUTPUT" || exit
elif [ $SFLAG -eq 1 ]; then
"$BIN/$ARCH-linux-cosmo-strip" \
"$OUTPUT" || exit
fi
fi
fi

100
tool/cosmocc/bin/cosmoinstall Executable file
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#!/bin/sh
# the `install -s` strip flag provided by gnu coreutils surprisngly
# enough understands the portable executable format however it will
# silently corrupt any actually portable executable it touches, due
# to how it overwrites the whole mz header and removes the dos stub
FIRST=1
for x; do
if [ $FIRST -eq 1 ]; then
set --
FIRST=0
fi
if [ x"$x" = x"-s" ]; then
continue
fi
set -- "$@" "$x"
done
# now magically copy multi-architecture build artifacts
if [ $# -gt 1 ]; then
# parse `install [$flags]... $src $dst`
i=0
n=$(( $# - 2 ))
dst=
src=
flags=
for x; do
if [ x"$x" != x"${x#* }" ]; then
# give up if any arguments contain spaces
exec install "$@"
fi
src=$dst
dst=$x
if [ $i -lt $n ]; then
flags="$flags $x"
fi
i=$(( i + 1 ))
done
arch=aarch64
# turn:
# install -c -m 644 foo.a /usr/lib/foo.a
# into:
# install -c -m 644 foo.a /usr/lib/foo.a
# install -c -m 644 .aarch/foo.a /usr/lib/.aarch/foo.a
if [ x"${dst##*/}" = x"${src##*/}" ] && # basenames are equal
[ x"$dst" != x"${dst%.a}" ]; then # specifies static archive
srcdir=${src%/*}
srcbas=${dst##*/}
if [ x"$srcdir" = x"$src" ]; then
srcdir=
elif [ -n "$srcdir" ]; then
srcdir="$srcdir/"
fi
if [ -f "$srcdir.$arch/$srcbas" ]; then
dstdir=${dst%/*}
dstbas=${dst##*/}
if [ x"$dstdir" = x"$dst" ]; then
dstdir=
elif [ -n "$dstdir" ]; then
dstdir="$dstdir/"
fi
if [ ! -d "$dstdir.$arch" ]; then
mkdir -p "$dstdir.$arch" || exit
fi
install $flags $src $dst || exit
exec install $flags \
"$srcdir.$arch/$srcbas" \
"$dstdir.$arch/$dstbas"
fi
fi
# turn:
# install -c -m 644 foo.a /usr/lib
# into:
# install -c -m 644 foo.a /usr/lib
# install -c -m 644 .aarch/foo.a /usr/lib/.aarch
arch=aarch64
if [ x"$src" != x"${src%.a}" ] && [ -d "$dst" ]; then
srcdir=${src%/*}
srcbas=${dst##*/}
if [ x"$srcdir" = x"$src" ]; then
srcdir=
elif [ -n "$srcdir" ]; then
srcdir="$srcdir/"
fi
if [ -f "$srcdir.$arch/$srcbas" ]; then
if [ ! -d "$dst/.$arch" ]; then
mkdir -p "$dst/.$arch" || exit
fi
install $flags $src $dst || exit
exec install $flags "$srcdir.$arch/$srcbas" "$dst/.$arch"
fi
fi
fi
exec install "$@"

1
tool/cosmocc/bin/unknown-unknown-cosmo-ar Symbolic link
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@ -0,0 +1 @@
cosmoar

1
tool/cosmocc/bin/unknown-unknown-cosmo-c++ Symbolic link
View file

@ -0,0 +1 @@
cosmocc

1
tool/cosmocc/bin/unknown-unknown-cosmo-cc Symbolic link
View file

@ -0,0 +1 @@
cosmocc

1
tool/cosmocc/bin/unknown-unknown-cosmo-install Symbolic link
View file

@ -0,0 +1 @@
cosmoinstall

1
tool/cosmocc/bin/x86_64-unknown-cosmo-addr2line Symbolic link
View file

@ -0,0 +1 @@
x86_64-linux-cosmo-addr2line

1
tool/cosmocc/bin/x86_64-unknown-cosmo-ar Symbolic link
View file

@ -0,0 +1 @@
x86_64-linux-cosmo-ar

1
tool/cosmocc/bin/x86_64-unknown-cosmo-as Symbolic link
View file

@ -0,0 +1 @@
x86_64-linux-cosmo-as

1
tool/cosmocc/bin/x86_64-unknown-cosmo-c++ Symbolic link
View file

@ -0,0 +1 @@
cosmocross

1
tool/cosmocc/bin/x86_64-unknown-cosmo-cc Symbolic link
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@ -0,0 +1 @@
cosmocross

15
tool/cosmocc/bin/x86_64-unknown-cosmo-install Executable file
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@ -0,0 +1,15 @@
#!/bin/sh
FIRST=1
for x; do
if [ $FIRST -eq 1 ]; then
set --
FIRST=0
fi
if [ x"$x" = x"-s" ]; then
continue
fi
set -- "$@" "$x"
done
exec install "$@"

1
tool/cosmocc/bin/x86_64-unknown-cosmo-nm Symbolic link
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@ -0,0 +1 @@
x86_64-linux-cosmo-nm

1
tool/cosmocc/bin/x86_64-unknown-cosmo-objcopy Symbolic link
View file

@ -0,0 +1 @@
x86_64-linux-cosmo-objcopy

1
tool/cosmocc/bin/x86_64-unknown-cosmo-objdump Symbolic link
View file

@ -0,0 +1 @@
x86_64-linux-cosmo-objdump

1
tool/cosmocc/bin/x86_64-unknown-cosmo-strip Symbolic link
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@ -0,0 +1 @@
x86_64-linux-cosmo-strip

133
tool/cosmocc/package.sh Executable file
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#!/bin/sh
# cosmopolitan toolchain packager
#
# tool/cosmocc/package.sh
# cd cosmocc
# zip -ry9 ../cosmocc.zip .
#
set -ex
OUTDIR=${1:-cosmocc}
make -j8 m= \
o//tool/build/apelink.com
make -j8 m=x86_64 \
o/cosmocc.h.txt \
o/cosmopolitan.h.txt \
o/x86_64/ape/ape.lds \
o/x86_64/libc/crt/crt.o \
o/x86_64/ape/ape.elf \
o/x86_64/ape/ape.macho \
o/x86_64/ape/ape.o \
o/x86_64/ape/ape-copy-self.o \
o/x86_64/ape/ape-no-modify-self.o \
o/x86_64/cosmopolitan.a \
o/x86_64/third_party/libcxx/libcxx.a \
o/x86_64/tool/build/assimilate.com.dbg \
o/x86_64/tool/build/march-native.com.dbg \
o/x86_64/tool/build/mktemper.com.dbg \
o/x86_64/tool/build/fixupobj.com.dbg \
o/x86_64/tool/build/zipcopy.com.dbg \
o/x86_64/tool/build/mkdeps.com.dbg \
o/x86_64/tool/build/apelink.com.dbg \
o/x86_64/tool/build/pecheck.com.dbg \
o/x86_64/third_party/make/make.com.dbg
make -j8 m=aarch64 \
o/aarch64/ape/ape.elf \
o/aarch64/ape/aarch64.lds \
o/aarch64/libc/crt/crt.o \
o/aarch64/ape/ape-copy-self.o \
o/aarch64/ape/ape-no-modify-self.o \
o/aarch64/cosmopolitan.a \
o/aarch64/third_party/libcxx/libcxx.a \
o/aarch64/tool/build/assimilate.com.dbg \
o/aarch64/tool/build/march-native.com.dbg \
o/aarch64/tool/build/mktemper.com.dbg \
o/aarch64/tool/build/fixupobj.com.dbg \
o/aarch64/tool/build/zipcopy.com.dbg \
o/aarch64/tool/build/mkdeps.com.dbg \
o/aarch64/tool/build/apelink.com.dbg \
o/aarch64/tool/build/pecheck.com.dbg \
o/aarch64/third_party/make/make.com.dbg
mkdir -p "$OUTDIR/bin/"
cp tool/cosmocc/README.md "$OUTDIR/"
cp tool/cosmocc/LICENSE.* "$OUTDIR/"
mkdir -p "$OUTDIR/include/"
cp -R libc/isystem/* "$OUTDIR/include/"
cp -R libc/integral "$OUTDIR/include/libc/"
for x in $(cat o/cosmocc.h.txt o/cosmopolitan.h.txt); do
mkdir -p "$OUTDIR/include/${x%/*}/"
cp -f $x "$OUTDIR/include/${x%/*}/"
done
OLD=$PWD
cd "$OUTDIR/"
if [ ! -x bin/x86_64-linux-cosmo-gcc ]; then
wget https://cosmo.zip/pub/cosmocc/cosmocc-0.0.18.zip
unzip cosmocc-0.0.18.zip
cp -af o/third_party/gcc/bin/* bin/
cp -aR o/third_party/gcc/libexec .
rm -f cosmocc-0.0.18.zip
rm -rf o/
fi
rm -f bin/*-cpp
rm -f bin/*-gcc-*
rm -f bin/*-gprof
rm -f bin/*-strings
for arch in aarch64 x86_64; do
ln -sf $arch-linux-cosmo-gcc bin/$arch-linux-cosmo-cc
ln -sf $arch-linux-cosmo-g++ bin/$arch-linux-cosmo-c++
ln -sf $arch-linux-cosmo-gcc bin/$arch-linux-cosmo-cpp
cmp -s libexec/gcc/$arch-linux-cosmo/11.2.0/ld.bfd libexec/gcc/$arch-linux-cosmo/11.2.0/ld
ln -sf ld.bfd libexec/gcc/$arch-linux-cosmo/11.2.0/ld
cmp -s libexec/gcc/$arch-linux-cosmo/11.2.0/ld.bfd bin/$arch-linux-cosmo-ld
ln -sf ../libexec/gcc/$arch-linux-cosmo/11.2.0/ld.bfd bin/$arch-linux-cosmo-ld
cmp -s libexec/gcc/$arch-linux-cosmo/11.2.0/as bin/$arch-linux-cosmo-as
ln -sf ../libexec/gcc/$arch-linux-cosmo/11.2.0/as bin/$arch-linux-cosmo-as
cmp -s libexec/gcc/$arch-linux-cosmo/11.2.0/ld.bfd bin/$arch-linux-cosmo-ld.bfd
ln -sf ../libexec/gcc/$arch-linux-cosmo/11.2.0/ld.bfd bin/$arch-linux-cosmo-ld.bfd
done
cd "$OLD"
for arch in x86_64 aarch64; do
mkdir -p "$OUTDIR/$arch-linux-cosmo/lib/"
cp -f o/$arch/libc/crt/crt.o "$OUTDIR/$arch-linux-cosmo/lib/"
cp -f o/$arch/cosmopolitan.a "$OUTDIR/$arch-linux-cosmo/lib/libcosmo.a"
cp -f o/$arch/third_party/libcxx/libcxx.a "$OUTDIR/$arch-linux-cosmo/lib/"
for lib in c dl gcc_s m pthread resolv rt dl z stdc++; do
printf '\041\074\141\162\143\150\076\012' >"$OUTDIR/$arch-linux-cosmo/lib/lib$lib.a"
done
done
cp -f o/x86_64/ape/ape.o "$OUTDIR/x86_64-linux-cosmo/lib/"
cp -f o/x86_64/ape/ape.lds "$OUTDIR/x86_64-linux-cosmo/lib/"
cp -f o/aarch64/ape/aarch64.lds "$OUTDIR/aarch64-linux-cosmo/lib/"
cp -f o/x86_64/ape/ape-no-modify-self.o "$OUTDIR/x86_64-linux-cosmo/lib/"
cp -f ape/ape-m1.c "$OUTDIR/bin/"
cp -af tool/cosmocc/bin/* "$OUTDIR/bin/"
cp -f o/x86_64/ape/ape.elf "$OUTDIR/bin/"
cp -f o/x86_64/ape/ape.macho "$OUTDIR/bin/"
cp -f o/aarch64/ape/ape.elf "$OUTDIR/bin/ape.aarch64"
for x in assimilate march-native mktemper fixupobj zipcopy apelink pecheck mkdeps; do
o//tool/build/apelink.com \
-l o/x86_64/ape/ape.elf \
-l o/aarch64/ape/ape.elf \
-M ape/ape-m1.c \
-o "$OUTDIR/bin/$x" \
o/x86_64/tool/build/$x.com.dbg \
o/aarch64/tool/build/$x.com.dbg
done
for x in make ctags; do
o//tool/build/apelink.com \
-l o/x86_64/ape/ape.elf \
-l o/aarch64/ape/ape.elf \
-M ape/ape-m1.c \
-o "$OUTDIR/bin/$x" \
o/x86_64/third_party/$x/$x.com.dbg \
o/aarch64/third_party/$x/$x.com.dbg
done