mirror of
https://github.com/jart/cosmopolitan.git
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Get Fabrice Bellard's JavaScript engine to build
$ m=tiny $ make -j12 MODE=$m o/$m/third_party/quickjs/qjs.com $ o/$m/third_party/quickjs/qjs.com -e 'console.log(2 + 2)' 4 $ ls -hal o/$m/third_party/quickjs/qjs.com 631.5K See #97
This commit is contained in:
Justine Tunney
parent
1fbfbb3192
commit
8f52c0d773
73 changed files with 954 additions and 1299 deletions
23
libc/runtime/dlfcn.h
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23
libc/runtime/dlfcn.h
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#ifndef COSMOPOLITAN_LIBC_RUNTIME_DLFCN_H_
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#define COSMOPOLITAN_LIBC_RUNTIME_DLFCN_H_
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#define RTLD_LOCAL 0
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#define RTLD_LAZY 1
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#define RTLD_NOW 2
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#define RTLD_GLOBAL 256
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#if !(__ASSEMBLER__ + __LINKER__ + 0)
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COSMOPOLITAN_C_START_
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#define RTLD_NEXT ((void *)-1)
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#define RTLD_DEFAULT ((void *)0)
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char *dlerror(void);
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void *dlopen(const char *, int);
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void *dlsym(void *, const char *);
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int dlclose(void *);
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int dl_iterate_phdr(int (*)(void *, size_t, void *), void *);
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COSMOPOLITAN_C_END_
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#endif /* !(__ASSEMBLER__ + __LINKER__ + 0) */
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#endif /* COSMOPOLITAN_LIBC_RUNTIME_DLFCN_H_ */
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32
libc/runtime/fegetround.c
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32
libc/runtime/fegetround.c
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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 2021 Justine Alexandra Roberts Tunney │
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│ │
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│ Permission to use, copy, modify, and/or distribute this software for │
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│ any purpose with or without fee is hereby granted, provided that the │
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│ above copyright notice and this permission notice appear in all copies. │
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│ │
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│ THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL │
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│ WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED │
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│ WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE │
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│ AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL │
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│ DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR │
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│ PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER │
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│ TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR │
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│ PERFORMANCE OF THIS SOFTWARE. │
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╚─────────────────────────────────────────────────────────────────────────────*/
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#include "libc/runtime/fenv.h"
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/**
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* Returns rounding mode.
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*
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* This implementation retrieves it from the x87 FPU control word.
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*
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* @see fesetround() for changing this
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*/
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int fegetround(void) {
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uint16_t x87cw;
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asm("fnstcw\t%0" : "=m"(x87cw));
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return x87cw & 0x0c00;
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}
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41
libc/runtime/fenv.c
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41
libc/runtime/fenv.c
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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 2021 Justine Alexandra Roberts Tunney │
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│ │
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│ Permission to use, copy, modify, and/or distribute this software for │
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│ any purpose with or without fee is hereby granted, provided that the │
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│ above copyright notice and this permission notice appear in all copies. │
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│ │
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│ THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL │
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│ WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED │
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│ WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE │
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│ AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL │
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│ DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR │
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│ PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER │
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│ TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR │
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│ PERFORMANCE OF THIS SOFTWARE. │
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╚─────────────────────────────────────────────────────────────────────────────*/
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#include "libc/runtime/fenv.h"
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/* TODO: implement these functions */
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int feclearexcept(int mask) {
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return 0;
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}
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int fegetenv(fenv_t *envp) {
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return 0;
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}
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int feraiseexcept(int mask) {
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return 0;
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}
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int fetestexcept(int mask) {
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return 0;
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}
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int fesetenv(const fenv_t *envp) {
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return 0;
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}
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39
libc/runtime/fenv.h
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39
libc/runtime/fenv.h
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#ifndef COSMOPOLITAN_LIBC_RUNTIME_FENV_H_
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#define COSMOPOLITAN_LIBC_RUNTIME_FENV_H_
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#define FE_TONEAREST 0x0000
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#define FE_DOWNWARD 0x0400
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#define FE_UPWARD 0x0800
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#define FE_TOWARDZERO 0x0c00
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#define FE_INVALID 1
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#define FE_DIVBYZERO 4
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#define FE_OVERFLOW 8
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#define FE_UNDERFLOW 16
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#define FE_INEXACT 32
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#define FE_ALL_EXCEPT 61
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#if !(__ASSEMBLER__ + __LINKER__ + 0)
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COSMOPOLITAN_C_START_
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#define FLT_ROUNDS (__flt_rounds())
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typedef void *fenv_t;
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typedef uint16_t fexcept_t;
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int feclearexcept(int);
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int fegetenv(fenv_t *);
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int fegetexceptflag(fexcept_t *, int);
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int fegetround(void);
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int feholdexcept(fenv_t *);
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int feraiseexcept(int);
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int fesetenv(const fenv_t *);
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int fesetexceptflag(const fexcept_t *, int);
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int fesetround(int);
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int fetestexcept(int);
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int feupdateenv(const fenv_t *);
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int __flt_rounds(void);
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COSMOPOLITAN_C_END_
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#endif /* !(__ASSEMBLER__ + __LINKER__ + 0) */
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#endif /* COSMOPOLITAN_LIBC_RUNTIME_FENV_H_ */
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51
libc/runtime/fesetround.c
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51
libc/runtime/fesetround.c
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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 2021 Justine Alexandra Roberts Tunney │
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│ │
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│ Permission to use, copy, modify, and/or distribute this software for │
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│ any purpose with or without fee is hereby granted, provided that the │
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│ above copyright notice and this permission notice appear in all copies. │
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│ │
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│ THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL │
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│ WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED │
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│ WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE │
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│ AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL │
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│ DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR │
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│ PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER │
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│ TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR │
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│ PERFORMANCE OF THIS SOFTWARE. │
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╚─────────────────────────────────────────────────────────────────────────────*/
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#include "libc/runtime/fenv.h"
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/* TODO(jart): This needs tests. */
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/**
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* Sets rounding mode.
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*
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* This configures the x87 FPU as well as SSE.
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*
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* @param mode may be FE_TONEAREST, FE_DOWNWARD, FE_UPWARD, or FE_TOWARDZERO
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* @return 0 on success, or -1 on error
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*/
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int fesetround(int mode) {
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uint16_t x87cw;
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uint32_t ssecw;
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switch (mode) {
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case FE_TONEAREST:
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case FE_DOWNWARD:
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case FE_UPWARD:
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case FE_TOWARDZERO:
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asm("fnstcw\t%0" : "=m"(x87cw));
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x87cw &= ~0x0c00;
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x87cw |= mode;
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asm volatile("fldcw\t%0" : /* no outputs */ : "m"(x87cw));
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asm("stmxcsr\t%0" : "=m"(ssecw));
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ssecw &= ~(0x0c00 << 3);
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ssecw |= (mode << 3);
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asm volatile("ldmxcsr\t%0" : /* no outputs */ : "m"(ssecw));
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return 0;
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default:
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return -1;
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}
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}
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34
libc/runtime/fltrounds.c
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34
libc/runtime/fltrounds.c
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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 2021 Justine Alexandra Roberts Tunney │
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│ │
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│ Permission to use, copy, modify, and/or distribute this software for │
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│ any purpose with or without fee is hereby granted, provided that the │
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│ above copyright notice and this permission notice appear in all copies. │
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│ │
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│ THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL │
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│ WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED │
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│ WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE │
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│ AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL │
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│ DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR │
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│ PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER │
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│ TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR │
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│ PERFORMANCE OF THIS SOFTWARE. │
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╚─────────────────────────────────────────────────────────────────────────────*/
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#include "libc/runtime/fenv.h"
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int __flt_rounds(void) {
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switch (fegetround()) {
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case FE_TOWARDZERO:
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return 0;
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case FE_TONEAREST:
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return 1;
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case FE_UPWARD:
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return 2;
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case FE_DOWNWARD:
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return 3;
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default:
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return -1;
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}
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}
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@ -16,7 +16,7 @@
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│ TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR │
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│ PERFORMANCE OF THIS SOFTWARE. │
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╚─────────────────────────────────────────────────────────────────────────────*/
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#include "libc/runtime/runtime.h"
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#include "libc/runtime/dlfcn.h"
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char *dlerror(void) {
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return "cosmopolitan doesn't support dsos";
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