mirror of
https://github.com/jart/cosmopolitan.git
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f0600a898c
- Remove XD bit in page tables
- Fix cylinder+head+sector arithmetic
- Implement fstat() for serial file descriptors on metal
Here's how to boot an Actually Portable Executable in QEMU:
make -j12 o//tool/viz/deathstar.com
qemu-system-x86_64 -serial stdio -fda o//tool/viz/deathstar.com
Here's a screenshot of DEATHSTAR.COM booted in QEMU:
https://justine.lol/cosmopolitan/cosmo-metal-qemu.png
Thus metal support is in much better shape now, but still incomplete.
Only a few system calls have been polyfilled. To figure out which ones
your program needs, simply boot it in the blinkenlights emulator with a
breakpoint, and press CTRL-C to continue to the system call breakpoint.
If it doesn't break then you should be good. (Note: to emulate normally
you can press 'c' and use CTRL-T and ALT-T to tune the speed.)
m=tiny
make -j12 SILENT=0 MODE=$m \
o/$m/tool/build/blinkenlights.com \
o/$m/tool/viz/deathstar.com
o/$m/tool/build/blinkenlights.com \
-r -t -b systemfive.linux \
o/$m/tool/viz/deathstar.com
Thank @Theldus for the bug report that made this change possible.
Fixes #20 which explains this change further.
59 lines
2.2 KiB
C
59 lines
2.2 KiB
C
#if 0
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/*─────────────────────────────────────────────────────────────────╗
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│ To the extent possible under law, Justine Tunney has waived │
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│ all copyright and related or neighboring rights to this file, │
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│ as it is written in the following disclaimers: │
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│ • http://unlicense.org/ │
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│ • http://creativecommons.org/publicdomain/zero/1.0/ │
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╚─────────────────────────────────────────────────────────────────*/
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#endif
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#include "libc/calls/calls.h"
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#include "libc/calls/struct/stat.h"
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#include "libc/errno.h"
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#include "libc/fmt/fmt.h"
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#include "libc/log/check.h"
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#include "libc/runtime/gc.h"
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#include "libc/stdio/stdio.h"
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#include "libc/x/x.h"
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/**
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* @fileoverview File metadata viewer.
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*
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* This demonstrates the more powerful aspects of the printf() DSL.
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*/
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void PrintFileMetadata(const char *pathname, struct stat *st) {
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printf("\n%s:", pathname);
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CHECK_NE(-1, stat(pathname, st));
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printf("\n"
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"%-32s%,ld\n"
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"%-32s%,ld\n"
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"%-32s%#lx\n"
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"%-32s%#lx\n"
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"%-32s%ld\n"
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"%-32s%#o\n"
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"%-32s%d\n"
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"%-32s%d\n"
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"%-32s%d\n"
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"%-32s%ld\n"
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"%-32s%s\n"
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"%-32s%s\n"
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"%-32s%s\n",
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"bytes in file", st->st_size, "physical bytes", st->st_blocks * 512,
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"device id w/ file", st->st_dev, "inode", st->st_ino,
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"hard link count", st->st_nlink, "mode / permissions", st->st_mode,
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"owner id", st->st_uid, "group id", st->st_gid,
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"device id (if special)", st->st_rdev, "block size", st->st_blksize,
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"access time", gc(xiso8601(&st->st_atim)), "modified time",
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gc(xiso8601(&st->st_mtim)), "c[omplicated]time",
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gc(xiso8601(&st->st_ctim)));
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}
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int main(int argc, char *argv[]) {
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size_t i;
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struct stat st;
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for (i = 1; i < argc; ++i) {
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PrintFileMetadata(argv[i], &st);
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}
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return 0;
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}
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