mirrors/cosmopolitan
1
0
Fork 0
mirror of https://github.com/jart/cosmopolitan.git synced 2025-02-26 07:49:05 +00:00
Code Issues Projects Releases Packages Wiki Activity Actions 1
cosmopolitan/tool/viz/memzoom.c
Justine Tunney 6ffed14b9c
Rewrite memory manager 
Actually Portable Executable now supports Android. Cosmo's old mmap code
required a 47 bit address space. The new implementation is very agnostic
and supports both smaller address spaces (e.g. embedded) and even modern
56-bit PML5T paging for x86 which finally came true on Zen4 Threadripper

Cosmopolitan no longer requires UNIX systems to observe the Windows 64kb
granularity; i.e. sysconf(_SC_PAGE_SIZE) will now report the host native
page size. This fixes a longstanding POSIX conformance issue, concerning
file mappings that overlap the end of file. Other aspects of conformance
have been improved too, such as the subtleties of address assignment and
and the various subtleties surrounding MAP_FIXED and MAP_FIXED_NOREPLACE

On Windows, mappings larger than 100 megabytes won't be broken down into
thousands of independent 64kb mappings. Support for MAP_STACK is removed
by this change; please use NewCosmoStack() instead.

Stack overflow avoidance is now being implemented using the POSIX thread
APIs. Please use GetStackBottom() and GetStackAddr(), instead of the old
error-prone GetStackAddr() and HaveStackMemory() APIs which are removed.
2024-06-22 05:45:11 -07:00

975 lines
22 KiB
C
Raw Blame History

/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:2;tab-width:8;coding:utf-8 -*-│
│ vi: set et ft=c ts=2 sts=2 sw=2 fenc=utf-8 :vi │
╞══════════════════════════════════════════════════════════════════════════════╡
│ Copyright 2020 Justine Alexandra Roberts Tunney │
│ │
│ Permission to use, copy, modify, and/or distribute this software for │
│ any purpose with or without fee is hereby granted, provided that the │
│ above copyright notice and this permission notice appear in all copies. │
│ │
│ THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL │
│ WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED │
│ WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE │
│ AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL │
│ DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR │
│ PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER │
│ TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR │
│ PERFORMANCE OF THIS SOFTWARE. │
╚─────────────────────────────────────────────────────────────────────────────*/
#include "dsp/scale/cdecimate2xuint8x8.h"
#include "libc/calls/calls.h"
#include "libc/calls/struct/sigaction.h"
#include "libc/calls/struct/siginfo.h"
#include "libc/calls/struct/stat.h"
#include "libc/calls/struct/termios.h"
#include "libc/calls/struct/winsize.h"
#include "libc/calls/termios.h"
#include "libc/calls/ucontext.h"
#include "libc/dce.h"
#include "libc/errno.h"
#include "libc/fmt/conv.h"
#include "libc/fmt/itoa.h"
#include "libc/intrin/bsf.h"
#include "libc/intrin/bsr.h"
#include "libc/intrin/hilbert.h"
#include "libc/intrin/safemacros.internal.h"
#include "libc/limits.h"
#include "libc/log/log.h"
#include "libc/macros.internal.h"
#include "libc/runtime/runtime.h"
#include "libc/sock/sock.h"
#include "libc/sock/struct/pollfd.h"
#include "libc/stdio/stdio.h"
#include "libc/str/str.h"
#include "libc/str/tab.internal.h"
#include "libc/str/unicode.h"
#include "libc/sysv/consts/ex.h"
#include "libc/sysv/consts/exit.h"
#include "libc/sysv/consts/fileno.h"
#include "libc/sysv/consts/map.h"
#include "libc/sysv/consts/o.h"
#include "libc/sysv/consts/poll.h"
#include "libc/sysv/consts/prot.h"
#include "libc/sysv/consts/sig.h"
#include "libc/sysv/consts/termios.h"
#include "libc/time.h"
#include "third_party/getopt/getopt.internal.h"
#define USAGE \
" [-hznmHNW] [-p PID] [PATH]\n\
\n\
DESCRIPTION\n\
\n\
Memory Viewer\n\
\n\
FLAGS\n\
\n\
-h or -? help\n\
-z zoom\n\
-m morton ordering\n\
-H hilbert ordering\n\
-N natural scrolling\n\
-W white terminal background\n\
-p PID shows process virtual memory\n\
-f INT frames per second [default 10]\n\
\n\
SHORTCUTS\n\
\n\
z or + zoom\n\
Z or - unzoom\n\
ctrl+wheel zoom point\n\
wheel scroll\n\
l linearize\n\
m mortonize\n\
h hilbertify\n\
n next mapping\n\
N next mapping ending\n\
p prev mapping\n\
P prev mapping ending\n\
k up\n\
j down\n\
b page up\n\
space page down\n\
g home\n\
G end\n\
q quit\n\
\n"
#define CTRL(C) ((C) ^ 0100)
#define MAXZOOM 14
#define COLOR 253
#define LINEAR 0
#define MORTON 1
#define HILBERT 2
#define INTERRUPTED 0x1
#define RESIZED 0x2
#define MOUSE_LEFT_DOWN 0
#define MOUSE_MIDDLE_DOWN 1
#define MOUSE_RIGHT_DOWN 2
#define MOUSE_LEFT_UP 4
#define MOUSE_MIDDLE_UP 5
#define MOUSE_RIGHT_UP 6
#define MOUSE_LEFT_DRAG 32
#define MOUSE_MIDDLE_DRAG 33
#define MOUSE_RIGHT_DRAG 34
#define MOUSE_WHEEL_UP 64
#define MOUSE_WHEEL_DOWN 65
#define MOUSE_CTRL_WHEEL_UP 80
#define MOUSE_CTRL_WHEEL_DOWN 81
struct Ranges {
long i;
struct Range {
long a;
long b;
} p[512];
};
static const signed char kThePerfectKernel[8] = {-1, -3, 3, 17, 17, 3, -3, -1};
static bool white;
static bool natural;
static bool mousemode;
static int fd;
static int pid;
static int out;
static int fps;
static int zoom;
static int order;
static int action;
static long tyn;
static long txn;
static long size;
static long offset;
static long lowest;
static long highest;
static long canvassize;
static long buffersize;
static long displaysize;
static char *buffer;
static uint8_t *canvas;
static struct stat st;
static struct Ranges ranges;
static struct termios oldterm;
static char path[PATH_MAX];
static char mapspath[PATH_MAX];
static int Write(const char *s) {
return write(out, s, strlen(s));
}
static void HideCursor(void) {
Write("\e[?25l");
}
static void ShowCursor(void) {
Write("\e[?25h");
}
static void EnableMouse(void) {
mousemode = true;
Write("\e[?1000;1002;1015;1006h");
}
static void DisableMouse(void) {
mousemode = false;
Write("\e[?1000;1002;1015;1006l");
}
static void LeaveScreen(void) {
Write("\e[H\e[J");
}
static unsigned long rounddown2pow(unsigned long x) {
return x ? 1ul << bsrl(x) : 0;
}
static void GetTtySize(void) {
struct winsize wsize;
wsize.ws_row = tyn + 1;
wsize.ws_col = txn;
tcgetwinsize(out, &wsize);
tyn = MAX(2, wsize.ws_row) - 1;
txn = MAX(17, wsize.ws_col) - 16;
tyn = rounddown2pow(tyn);
txn = rounddown2pow(txn);
tyn = MIN(tyn, txn);
}
static void EnableRaw(void) {
struct termios term;
memcpy(&term, &oldterm, sizeof(term));
term.c_cc[VMIN] = 1;
term.c_cc[VTIME] = 1;
term.c_iflag &= ~(INPCK | ISTRIP | PARMRK | INLCR | IGNCR | ICRNL | IXON);
term.c_lflag &= ~(IEXTEN | ICANON | ECHO | ECHONL);
term.c_cflag &= ~(CSIZE | PARENB);
term.c_cflag |= CS8;
term.c_iflag |= IUTF8;
tcsetattr(out, TCSANOW, &term);
}
static void OnExit(void) {
LeaveScreen();
ShowCursor();
DisableMouse();
tcsetattr(out, TCSANOW, &oldterm);
}
static void OnSigInt(int sig, siginfo_t *sa, void *uc) {
action |= INTERRUPTED;
}
static void OnSigWinch(int sig, siginfo_t *sa, void *uc) {
action |= RESIZED;
}
static void Setup(void) {
tyn = 80;
txn = 24;
action = RESIZED;
tcgetattr(out, &oldterm);
HideCursor();
EnableRaw();
EnableMouse();
atexit(OnExit);
sigaction(SIGINT, &(struct sigaction){.sa_sigaction = OnSigInt}, NULL);
sigaction(SIGWINCH, &(struct sigaction){.sa_sigaction = OnSigWinch}, NULL);
}
static wontreturn void FailPath(const char *s, int rc) {
Write("error: ");
Write(s);
Write(": ");
Write(path);
Write("\n");
exit(rc);
}
static void SetExtent(long lo, long hi) {
lowest = lo;
highest = hi;
offset = MIN(hi, MAX(lo, offset));
}
static void Open(void) {
if ((fd = open(path, O_RDONLY)) == -1) {
FailPath("open() failed", errno);
}
fstat(fd, &st);
size = st.st_size;
SetExtent(0, size);
}
static void *Allocate(size_t n) {
return mmap(NULL, n, PROT_READ | PROT_WRITE, MAP_ANONYMOUS | MAP_PRIVATE, -1,
0);
}
static void SetupCanvas(void) {
if (canvassize) {
munmap(canvas, canvassize);
munmap(buffer, buffersize);
}
displaysize = ROUNDUP(ROUNDUP((tyn * txn) << zoom, 16), 1ul << zoom);
canvassize = ROUNDUP(displaysize, __granularity());
buffersize = ROUNDUP(tyn * txn * 16 + 4096, __granularity());
canvas = Allocate(canvassize);
buffer = Allocate(buffersize);
}
/**
* Interleaves bits.
* @see https://en.wikipedia.org/wiki/Z-order_curve
* @see unmorton()
*/
static unsigned long morton(unsigned long y, unsigned long x) {
x = (x | x << 020) & 0x0000FFFF0000FFFF;
x = (x | x << 010) & 0x00FF00FF00FF00FF;
x = (x | x << 004) & 0x0F0F0F0F0F0F0F0F;
x = (x | x << 002) & 0x3333333333333333;
x = (x | x << 001) & 0x5555555555555555;
y = (y | y << 020) & 0x0000FFFF0000FFFF;
y = (y | y << 010) & 0x00FF00FF00FF00FF;
y = (y | y << 004) & 0x0F0F0F0F0F0F0F0F;
y = (y | y << 002) & 0x3333333333333333;
y = (y | y << 001) & 0x5555555555555555;
return x | y << 1;
}
static long IndexSquare(long y, long x) {
switch (order) {
case LINEAR:
return y * txn + x;
case MORTON:
return morton(y, x);
case HILBERT:
return hilbert(txn, y, x);
default:
return 0;
}
}
static long Index(long y, long x) {
long i;
if (order == LINEAR) {
i = 0;
} else {
i = x / tyn;
x = x % tyn;
}
return i * tyn * tyn + IndexSquare(y, x);
}
static void PreventBufferbloat(void) {
struct timespec now, rate;
static struct timespec last;
now = timespec_real();
rate = timespec_frommicros(1. / fps * 1e6);
if (timespec_cmp(timespec_sub(now, last), rate) < 0) {
timespec_sleep(timespec_sub(rate, timespec_sub(now, last)));
}
last = now;
}
static bool HasPendingInput(void) {
struct pollfd fds[1];
if (IsWindows())
return true; /* XXX */
fds[0].fd = 0;
fds[0].events = POLLIN;
fds[0].revents = 0;
poll(fds, ARRAYLEN(fds), 0);
return fds[0].revents & (POLLIN | POLLERR);
}
static int GetCurrentRange(void) {
int i;
if (ranges.i) {
for (i = 0; i < ranges.i; ++i) {
if (offset < ranges.p[i].a)
return MAX(0, i - 1);
if (offset < ranges.p[i].b)
return i;
}
return ranges.i - 1;
} else {
return -1;
}
}
static void Move(long d) {
d <<= zoom;
offset = MIN(highest, MAX(lowest, (offset + d) >> zoom << zoom));
}
static void SetZoom(long y, long x, int d) {
long a, b, i;
if ((0 <= y && y < tyn) && (0 <= x && x < txn)) {
i = Index(y, x);
a = zoom;
b = MIN(MAXZOOM, MAX(0, a + d));
zoom = b;
Move((i << a) - (i << b));
SetupCanvas();
}
}
static void OnZoom(long y, long x) {
SetZoom(y, x, +1);
}
static void OnUnzoom(long y, long x) {
SetZoom(y, x, -1);
}
static void OnUp(void) {
Move(-(txn));
}
static void OnDown(void) {
Move(txn);
}
static void OnPageUp(void) {
Move(-(txn * (tyn - 2)));
}
static void OnPageDown(void) {
Move(txn * (tyn - 2));
}
static void OnHome(void) {
offset = lowest;
}
static void OnEnd(void) {
offset = MAX(lowest, highest - txn * tyn);
}
static void OnLinear(void) {
order = LINEAR;
GetTtySize();
SetupCanvas();
}
static void OnMorton(void) {
order = MORTON;
SetupCanvas();
}
static void OnHilbert(void) {
order = HILBERT;
SetupCanvas();
}
static void OnNext(void) {
int i;
if ((i = GetCurrentRange()) != -1) {
if (i + 1 < ranges.i) {
offset = ranges.p[i + 1].a;
}
}
}
static void OnPrev(void) {
int i;
if ((i = GetCurrentRange()) != -1) {
if (i) {
offset = ranges.p[i - 1].a;
}
}
}
static void OnNextEnd(void) {
long i, n;
if ((i = GetCurrentRange()) != -1) {
n = (tyn * txn) << zoom;
if (offset < ranges.p[i].b - n) {
offset = ranges.p[i].b - n;
} else if (i + 1 < ranges.i) {
offset = MAX(ranges.p[i + 1].a, ranges.p[i + 1].b - n);
}
}
}
static void OnPrevEnd(void) {
long i, n;
if ((i = GetCurrentRange()) != -1) {
n = (tyn * txn) << zoom;
if (i) {
offset = MAX(ranges.p[i - 1].a, ranges.p[i - 1].b - n);
}
}
}
static void OnMouse(char *p) {
int e, x, y;
e = strtol(p, &p, 10);
if (*p == ';')
++p;
x = min(txn, max(1, strtol(p, &p, 10))) - 1;
if (*p == ';')
++p;
y = min(tyn, max(1, strtol(p, &p, 10))) - 1;
e |= (*p == 'm') << 2;
switch (e) {
case MOUSE_WHEEL_UP:
if (natural) {
OnDown();
OnDown();
OnDown();
} else {
OnUp();
OnUp();
OnUp();
}
break;
case MOUSE_WHEEL_DOWN:
if (natural) {
OnUp();
OnUp();
OnUp();
} else {
OnDown();
OnDown();
OnDown();
}
break;
case MOUSE_CTRL_WHEEL_UP:
if (natural) {
OnZoom(y, x);
} else {
OnUnzoom(y, x);
}
break;
case MOUSE_CTRL_WHEEL_DOWN:
if (natural) {
OnUnzoom(y, x);
} else {
OnZoom(y, x);
}
break;
default:
break;
}
}
static void ReadKeyboard(void) {
char buf[32], *p = buf;
bzero(buf, sizeof(buf));
if (readansi(0, buf, sizeof(buf)) == -1) {
if (errno == EINTR)
return;
exit(errno);
}
switch (*p++) {
case 'q':
exit(0);
case '+':
case 'z':
OnZoom(0, 0);
break;
case '-':
case 'Z':
OnUnzoom(0, 0);
break;
case 'b':
OnPageUp();
break;
case 'n':
OnNext();
break;
case 'p':
OnPrev();
break;
case 'N':
OnNextEnd();
break;
case 'P':
OnPrevEnd();
break;
case ' ':
case CTRL('V'):
OnPageDown();
break;
case 'g':
OnHome();
break;
case 'G':
OnEnd();
break;
case 'k':
case CTRL('P'):
OnUp();
break;
case 'j':
case CTRL('N'):
OnDown();
break;
case 'l':
OnLinear();
break;
case 'm':
if (order == MORTON) {
OnLinear();
} else {
OnMorton();
}
break;
case 'M':
if (mousemode) {
DisableMouse();
} else {
EnableMouse();
}
break;
case 'h':
case 'H':
if (order == HILBERT) {
OnLinear();
} else {
OnHilbert();
}
break;
case '\e':
switch (*p++) {
case 'v':
OnPageUp();
break;
case '[':
switch (*p++) {
case '<':
OnMouse(p);
break;
case 'A':
OnUp();
break;
case 'B':
OnDown();
break;
case 'F':
OnEnd();
break;
case 'H':
OnHome();
break;
case '1':
switch (*p++) {
case '~':
OnHome();
break;
default:
break;
}
break;
case '4':
switch (*p++) {
case '~':
OnEnd();
break;
default:
break;
}
break;
case '5':
switch (*p++) {
case '~':
OnPageUp();
break;
default:
break;
}
break;
case '6':
switch (*p++) {
case '~':
OnPageDown();
break;
default:
break;
}
break;
case '7':
switch (*p++) {
case '~':
OnHome();
break;
default:
break;
}
break;
case '8':
switch (*p++) {
case '~':
OnEnd();
break;
default:
break;
}
break;
default:
break;
}
break;
default:
break;
}
break;
default:
break;
}
}
static void LoadRanges(void) {
char b[512];
struct Range range;
int i, t, n, fd, err;
if ((fd = open(mapspath, O_RDONLY)) == -1) {
err = errno;
Write("error: process died\n");
exit(err);
}
t = 0;
range.a = 0;
range.b = 0;
ranges.i = 0;
for (;;) {
if ((n = read(fd, b, sizeof(b))) == -1)
exit(1);
if (!n)
break;
for (i = 0; i < n; ++i) {
switch (t) {
case 0:
if (isxdigit(b[i])) {
range.a <<= 4;
range.a += kHexToInt[b[i] & 255];
} else if (b[i] == '-') {
t = 1;
}
break;
case 1:
if (isxdigit(b[i])) {
range.b <<= 4;
range.b += kHexToInt[b[i] & 255];
} else if (b[i] == ' ') {
t = 2;
}
break;
case 2:
if (b[i] == '\n') {
if (ranges.i < ARRAYLEN(ranges.p)) {
ranges.p[ranges.i++] = range;
}
range.a = 0;
range.b = 0;
t = 0;
}
break;
default:
__builtin_unreachable();
}
}
}
close(fd);
if (ranges.i) {
SetExtent(ranges.p[0].a, ranges.p[ranges.i - 1].b);
} else {
SetExtent(0, 0);
}
}
static int InvertXtermGreyscale(int x) {
return -(x - 232) + 255;
}
static void Render(void) {
char *p;
int c, fg2, rc, fg;
long i, y, x, w, n, got;
p = buffer;
p = stpcpy(p, "\e[H");
for (y = 0; y < tyn; ++y) {
fg = -1;
for (x = 0; x < txn; ++x) {
c = canvas[Index(y, x)];
if (c < 32) {
fg2 = 237 + c * ((COLOR - 237) / 32.);
} else if (c >= 232) {
fg2 = COLOR + (c - 232) * ((255 - COLOR) / (256. - 232));
} else {
fg2 = COLOR;
}
if (fg2 != fg) {
fg = fg2;
if (white) {
fg = InvertXtermGreyscale(fg);
}
p = stpcpy(p, "\e[38;5;");
p = FormatInt64(p, fg);
*p++ = 'm';
}
w = tpenc(kCp437[c]);
do {
*p++ = w & 0xff;
w >>= 8;
} while (w);
}
p = stpcpy(p, "\e[0m ");
p += uint64toarray_radix16(offset + ((y * txn) << zoom), p);
p = stpcpy(p, "\e[K\r\n");
}
p = stpcpy(p, "\e[7m\e[K");
n = strlen(path);
if (n > txn - 3 - 1 - 7) {
p = mempcpy(p, path, txn - 1 - 7 - 3);
p = stpcpy(p, "...");
} else {
p = stpcpy(p, path);
for (i = n; i < txn - 1 - 7; ++i) {
*p++ = ' ';
}
}
p = stpcpy(p, " memzoom\e[0m ");
if (!pid) {
p = FormatUint32(p, MIN(offset / (long double)size * 100, 100));
p = stpcpy(p, "%-");
p = FormatUint32(
p,
MIN((offset + ((tyn * txn) << zoom)) / (long double)size * 100, 100));
p = stpcpy(p, "% ");
}
p = FormatUint32(p, 1L << zoom);
p = stpcpy(p, "x\e[J");
PreventBufferbloat();
for (i = 0, n = p - buffer; i < n; i += got) {
got = 0;
if ((rc = write(out, buffer + i, n - i)) == -1) {
if (errno == EINTR)
continue;
exit(errno);
}
got = rc;
}
}
static void Zoom(long have) {
long i, n, r;
n = canvassize;
for (i = 0; i < zoom; ++i) {
cDecimate2xUint8x8(n, canvas, kThePerfectKernel);
n >>= 1;
}
if (n < tyn * txn) {
bzero(canvas + n, canvassize - n);
}
if (have != -1) {
n = have >> zoom;
i = n / txn;
r = n % txn;
if (r)
++i;
if (order == LINEAR) {
for (; i < tyn; ++i) {
canvas[txn * i] = '~';
}
}
}
}
static void FileZoom(void) {
long have;
have = MIN(displaysize, size - offset);
have = pread(fd, canvas, have, offset);
have = MAX(0, have);
bzero(canvas + have, canvassize - have);
Zoom(have);
Render();
}
static void RangesZoom(void) {
long a, b, c, d, i;
LoadRanges();
memset(canvas, 1, canvassize);
a = offset;
b = MIN(highest, offset + ((tyn * txn) << zoom));
for (i = 0; i < ranges.i; ++i) {
if ((a >= ranges.p[i].a && a < ranges.p[i].b) ||
(b >= ranges.p[i].a && b < ranges.p[i].b) ||
(a < ranges.p[i].a && b >= ranges.p[i].b)) {
c = MAX(a, ranges.p[i].a);
d = MIN(b, ranges.p[i].b);
pread(fd, canvas + (c - offset), d - c, c);
}
}
Zoom(-1);
Render();
}
static void MemZoom(void) {
bool ok;
ok = false;
do {
if (action & RESIZED) {
GetTtySize();
SetupCanvas();
action &= ~RESIZED;
}
if (ok && HasPendingInput()) {
ReadKeyboard();
if (!IsWindows())
continue; /* XXX */
}
ok = true;
if (pid) {
RangesZoom();
} else {
FileZoom();
}
} while (!(action & INTERRUPTED));
}
static wontreturn void PrintUsage(int rc, int fd) {
tinyprint(fd, "SYNOPSIS\n\n ", program_invocation_name, USAGE, NULL);
exit(rc);
}
static void GetOpts(int argc, char *argv[]) {
int opt;
char *p;
fps = 10;
while ((opt = getopt(argc, argv, "?hmzHNWf:p:")) != -1) {
switch (opt) {
case 'z':
++zoom;
break;
case 'm':
order = MORTON;
break;
case 'H':
order = HILBERT;
break;
case 'W':
white = true;
break;
case 'N':
natural = true;
break;
case 'f':
fps = strtol(optarg, NULL, 0);
fps = MAX(1, fps);
break;
case 'p':
if (strcmp(optarg, "self") == 0) {
pid = getpid();
} else {
pid = strtol(optarg, NULL, 0);
}
break;
case 'h':
case '?':
default:
if (opt == optopt) {
PrintUsage(EXIT_SUCCESS, STDOUT_FILENO);
} else {
PrintUsage(EX_USAGE, STDERR_FILENO);
}
}
}
if (pid) {
p = stpcpy(path, "/proc/");
p = FormatInt64(p, pid);
stpcpy(p, "/mem");
p = stpcpy(mapspath, "/proc/");
p = FormatInt64(p, pid);
stpcpy(p, "/maps");
} else {
if (optind == argc) {
PrintUsage(EX_USAGE, STDERR_FILENO);
}
if (!memccpy(path, argv[optind], '\0', sizeof(path))) {
PrintUsage(EX_USAGE, STDERR_FILENO);
}
}
}
int main(int argc, char *argv[]) {
if (!NoDebug())
ShowCrashReports();
out = 1;
GetOpts(argc, argv);
Open();
Setup();
MemZoom();
return 0;
}
Reference in a new issue View git blame Copy permalink