60 lines
2.8 KiB
C
60 lines
2.8 KiB
C
/*-*- 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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│ 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/calls/calls.h"
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#include "libc/log/check.h"
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#include "libc/stdio/stdio.h"
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#include "libc/sysv/consts/ex.h"
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#include "libc/sysv/consts/fileno.h"
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#include "libc/x/x.h"
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#include "tool/build/lib/loader.h"
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#include "tool/build/lib/machine.h"
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#include "tool/build/lib/syscall.h"
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static void AddHostFd(struct Machine *m, int fd) {
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int i = m->fds.i++;
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CHECK_NE(-1, (m->fds.p[i].fd = dup(fd)));
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m->fds.p[i].cb = &kMachineFdCbHost;
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}
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int main(int argc, char *argv[]) {
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int rc;
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struct Elf elf;
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struct Machine *m;
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if (argc < 2) {
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fputs("Usage: ", stderr);
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fputs(argv[0], stderr);
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fputs(" PROG [ARGS...]\n", stderr);
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return EX_USAGE;
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}
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m = NewMachine();
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LoadProgram(m, argv[1], argv + 2, environ, &elf);
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m->fds.p = xcalloc((m->fds.n = 8), sizeof(struct MachineFd));
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AddHostFd(m, STDIN_FILENO);
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AddHostFd(m, STDOUT_FILENO);
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AddHostFd(m, STDERR_FILENO);
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if (!(rc = setjmp(m->onhalt))) {
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for (;;) {
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LoadInstruction(m);
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ExecuteInstruction(m);
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}
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} else {
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return rc;
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}
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}
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