mirror of
https://github.com/jart/cosmopolitan.git
synced 2025-07-05 10:48:29 +00:00
Add chibicc
This program popped up on Hacker News recently. It's the only modern compiler I've ever seen that doesn't have dependencies and is easily modified. So I added all of the missing GNU extensions I like to use which means it might be possible soon to build on non-Linux and have third party not vendor gcc binaries.
This commit is contained in:
Justine Tunney
parent
e44a0cf6f8
commit
8da931a7f6
298 changed files with 19493 additions and 11950 deletions
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@ -25,7 +25,7 @@ COSMOPOLITAN_C_START_
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/**
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* Same as longjmp() but runs gc() / defer() destructors.
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*/
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void gclongjmp(jmp_buf, int) nothrow noreturn paramsnonnull();
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void gclongjmp(jmp_buf, int) nothrow wontreturn paramsnonnull();
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/**
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* Calls FN(ARG) when function returns.
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@ -19,10 +19,10 @@ extern hidden void *g_stacktop;
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void _init(void) hidden;
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void _piro(int) hidden;
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void *__cxa_finalize(void *) hidden;
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void _executive(int, char **, char **, long (*)[2]) hidden noreturn;
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void __stack_chk_fail(void) noreturn relegated;
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void __stack_chk_fail_local(void) noreturn relegated hidden;
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void _jmpstack(void *, void *, ...) hidden noreturn;
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void _executive(int, char **, char **, long (*)[2]) hidden wontreturn;
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void __stack_chk_fail(void) wontreturn relegated;
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void __stack_chk_fail_local(void) wontreturn relegated hidden;
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void _jmpstack(void *, void *, ...) hidden wontreturn;
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long _setstack(void *, void *, ...) hidden;
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int GetDosArgv(const char16_t *, char *, size_t, char **, size_t) hidden;
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Elf64_Ehdr *MapElfRead(const char *, struct MappedFile *) hidden;
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@ -29,7 +29,7 @@ STATIC_YOINK("_init_onntconsoleevent");
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static struct InterruptibleCall *g_interruptiblecall;
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noreturn static void interruptcall(int sig) {
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wontreturn static void interruptcall(int sig) {
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longjmp(g_interruptiblecall->jb, 1);
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unreachable;
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}
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@ -32,7 +32,7 @@
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static privileged void __print$nt(const void *data, size_t len) {
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int64_t hand;
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uint32_t wrote;
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char xmm[256] aligned(16);
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char xmm[256] forcealign(16);
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savexmm(&xmm[128]);
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hand = __imp_GetStdHandle(kNtStdErrorHandle);
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__imp_WriteFile(hand, data, len, &wrote, NULL);
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@ -6,45 +6,45 @@ COSMOPOLITAN_C_START_
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│ cosmopolitan § runtime ─╬─│┼
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╚────────────────────────────────────────────────────────────────────────────│*/
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typedef long jmp_buf[8] aligned(CACHELINE);
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typedef long jmp_buf[8] forcealign(CACHELINE);
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extern int g_argc; /* CRT */
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extern char **g_argv; /* CRT */
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extern char **environ; /* CRT */
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extern unsigned long *g_auxv; /* CRT */
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extern char *program_invocation_name; /* RII */
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extern char *program_invocation_short_name; /* RII */
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extern uint64_t g_syscount; /* RII */
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extern const uint64_t kStartTsc; /* RII */
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extern const char kTmpPath[]; /* RII */
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extern const char kNtSystemDirectory[]; /* RII */
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extern const char kNtWindowsDirectory[]; /* RII */
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extern unsigned char _base[] aligned(PAGESIZE); /* αpε */
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extern unsigned char _ehead[] aligned(PAGESIZE); /* αpε */
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extern unsigned char _etext[] aligned(PAGESIZE); /* αpε */
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extern unsigned char _edata[] aligned(PAGESIZE); /* αpε */
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extern unsigned char _end[] aligned(PAGESIZE); /* αpε */
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extern unsigned char _ereal; /* αpε */
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extern unsigned char __privileged_start; /* αpε */
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extern unsigned char __test_start; /* αpε */
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extern unsigned char __ro; /* αpε */
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extern unsigned char *__relo_start[]; /* αpε */
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extern unsigned char *__relo_end[]; /* αpε */
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extern uint8_t __zip_start[]; /* αpε */
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extern uint8_t __zip_end[]; /* αpε */
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extern int g_argc; /* CRT */
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extern char **g_argv; /* CRT */
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extern char **environ; /* CRT */
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extern unsigned long *g_auxv; /* CRT */
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extern char *program_invocation_name; /* RII */
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extern char *program_invocation_short_name; /* RII */
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extern uint64_t g_syscount; /* RII */
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extern const uint64_t kStartTsc; /* RII */
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extern const char kTmpPath[]; /* RII */
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extern const char kNtSystemDirectory[]; /* RII */
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extern const char kNtWindowsDirectory[]; /* RII */
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extern unsigned char _base[] forcealign(PAGESIZE); /* αpε */
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extern unsigned char _ehead[] forcealign(PAGESIZE); /* αpε */
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extern unsigned char _etext[] forcealign(PAGESIZE); /* αpε */
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extern unsigned char _edata[] forcealign(PAGESIZE); /* αpε */
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extern unsigned char _end[] forcealign(PAGESIZE); /* αpε */
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extern unsigned char _ereal; /* αpε */
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extern unsigned char __privileged_start; /* αpε */
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extern unsigned char __test_start; /* αpε */
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extern unsigned char __ro; /* αpε */
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extern unsigned char *__relo_start[]; /* αpε */
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extern unsigned char *__relo_end[]; /* αpε */
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extern uint8_t __zip_start[]; /* αpε */
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extern uint8_t __zip_end[]; /* αpε */
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long missingno();
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void mcount(void);
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unsigned long getauxval(unsigned long);
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void *mapanon(size_t) vallocesque attributeallocsize((1));
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int setjmp(jmp_buf) libcesque returnstwice paramsnonnull();
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void longjmp(jmp_buf, int) libcesque noreturn paramsnonnull();
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void exit(int) noreturn;
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void _exit(int) libcesque noreturn;
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void _Exit(int) libcesque noreturn;
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void abort(void) noreturn noinstrument;
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void panic(void) noreturn noinstrument privileged;
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void triplf(void) noreturn noinstrument privileged;
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void longjmp(jmp_buf, int) libcesque wontreturn paramsnonnull();
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void exit(int) wontreturn;
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void _exit(int) libcesque wontreturn;
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void _Exit(int) libcesque wontreturn;
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void abort(void) wontreturn noinstrument;
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void panic(void) wontreturn noinstrument privileged;
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void triplf(void) wontreturn noinstrument privileged;
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int __cxa_atexit(void *, void *, void *) libcesque;
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int atfork(void *, void *) libcesque;
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int atexit(void (*)(void)) libcesque;
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51
libc/runtime/valist.c
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51
libc/runtime/valist.c
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@ -0,0 +1,51 @@
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/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:2;tab-width:8;coding:utf-8 -*-│
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│vi: set net ft=c ts=2 sts=2 sw=2 fenc=utf-8 :vi│
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╞══════════════════════════════════════════════════════════════════════════════╡
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│ Copyright 2020 Justine Alexandra Roberts Tunney │
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│ │
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│ This program is free software; you can redistribute it and/or modify │
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│ it under the terms of the GNU General Public License as published by │
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│ the Free Software Foundation; version 2 of the License. │
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│ │
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│ This program is distributed in the hope that it will be useful, but │
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│ WITHOUT ANY WARRANTY; without even the implied warranty of │
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│ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU │
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│ General Public License for more details. │
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│ │
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│ You should have received a copy of the GNU General Public License │
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│ along with this program; if not, write to the Free Software │
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│ Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA │
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│ 02110-1301 USA │
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╚─────────────────────────────────────────────────────────────────────────────*/
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#include "libc/runtime/valist.h"
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static void *__va_arg_mem(struct __va *ap, unsigned long sz, unsigned align) {
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void *r = ap->overflow_arg_area;
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if (align > 8) r = (void *)(((unsigned long)r + 15) / 16 * 16);
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ap->overflow_arg_area = (void *)(((unsigned long)r + sz + 7) / 8 * 8);
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return r;
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}
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void *__va_arg(struct __va *ap, unsigned long sz, unsigned align, unsigned k) {
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void *r;
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switch (k) {
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case 0:
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if (ap->gp_offset < 48) {
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r = (char *)ap->reg_save_area + ap->gp_offset;
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ap->gp_offset += 8;
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return r;
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} else {
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return __va_arg_mem(ap, sz, align);
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}
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case 1:
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if (ap->fp_offset < 112) {
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r = (char *)ap->reg_save_area + ap->fp_offset;
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ap->fp_offset += 8;
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return r;
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} else {
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return __va_arg_mem(ap, sz, align);
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}
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default:
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return __va_arg_mem(ap, sz, align);
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}
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}
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17
libc/runtime/valist.h
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17
libc/runtime/valist.h
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@ -0,0 +1,17 @@
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#ifndef COSMOPOLITAN_LIBC_RUNTIME_VALIST_H_
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#define COSMOPOLITAN_LIBC_RUNTIME_VALIST_H_
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#if !(__ASSEMBLER__ + __LINKER__ + 0)
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COSMOPOLITAN_C_START_
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struct __va {
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unsigned int gp_offset;
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unsigned int fp_offset;
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void *overflow_arg_area;
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void *reg_save_area;
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};
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void *__va_arg(struct __va *, unsigned long, unsigned, unsigned);
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COSMOPOLITAN_C_END_
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#endif /* !(__ASSEMBLER__ + __LINKER__ + 0) */
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#endif /* COSMOPOLITAN_LIBC_RUNTIME_VALIST_H_ */
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@ -119,7 +119,7 @@ static textwindows char *AllocateMemory(void *addr, size_t size, int64_t *h) {
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kNtNumaNoPreferredNode);
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}
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static textwindows noreturn void WinMainNew(void) {
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static textwindows wontreturn void WinMainNew(void) {
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int64_t h;
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size_t size;
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int i, count;
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