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Code Issues Projects Releases Wiki Activity

Make fixes and improvements

Browse source 
- Introduce __assert_disable global
- Improve strsignal() thread safety
- Make system call tracing thread safe
- Fix SO_RCVTIMEO / SO_SNDTIMEO on Windows
- Refactor DescribeFoo() functions into one place
- Fix fork() on Windows when TLS and MAP_STACK exist
- Round upwards in setsockopt(SO_RCVTIMEO) on Windows
- Disable futexes on OpenBSD which seem extremely broken
- Implement a better kludge for monotonic time on Windows
This commit is contained in:
Justine Tunney 2022-06-25 18:17:31 -07:00
parent 5d837c4e7c
commit fbc053e018
186 changed files with 1836 additions and 1325 deletions
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1
Makefile
View file

@ -61,7 +61,6 @@
SHELL = build/bootstrap/cocmd.com
HOSTS ?= freebsd openbsd netbsd rhel7 rhel5 win7 win10 xnu
#SANITY := $(shell build/sanitycheck $$PPID)
.SUFFIXES:
.DELETE_ON_ERROR:

6
README.md
View file

@ -42,9 +42,9 @@ bash -c './hello.com' # zsh/fish workaround (we patched them in 2021)
Since we used the `ape-no-modify-self.o` bootloader (rather than
`ape.o`) your executable will not modify itself when it's run. What
it'll instead do, is extract a 4kb program to `${TMPDIR:-/tmp}` that
maps your program into memory without needing to copy it. It's possible
to install the APE loader systemwide as follows.
it'll instead do, is extract a 4kb program to `${TMPDIR:-${HOME:-.}}`
that maps your program into memory without needing to copy it. It's
possible to install the APE loader systemwide as follows.
```sh
# (1) linux systems that want binfmt_misc

2
build/definitions.mk
View file

@ -63,7 +63,7 @@ PKG = build/bootstrap/package.com
MKDEPS = build/bootstrap/mkdeps.com
ZIPOBJ = build/bootstrap/zipobj.com
MKDIR = build/bootstrap/mkdir.com -p
COMPILE = build/bootstrap/compile.com -V9 $(QUOTA)
COMPILE = build/bootstrap/compile.com -V9 -P4096 $(QUOTA)
COMMA := ,
PWD := $(shell build/bootstrap/pwd.com)

3
libc/assert.h
View file

@ -3,7 +3,8 @@
#if !(__ASSEMBLER__ + __LINKER__ + 0)
COSMOPOLITAN_C_START_
void __assert_fail(const char *, const char *, int) hidden wontreturn relegated;
extern bool __assert_disable;
void __assert_fail(const char *, const char *, int) hidden relegated;
#ifdef NDEBUG
#define assert(EXPR) ((void)0)

42
libc/calls/clock_gettime-nt.c
View file

@ -16,15 +16,27 @@
│ TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR │
│ PERFORMANCE OF THIS SOFTWARE. │
╚─────────────────────────────────────────────────────────────────────────────*/
#include "libc/bits/likely.h"
#include "libc/calls/internal.h"
#include "libc/calls/struct/timespec.h"
#include "libc/fmt/conv.h"
#include "libc/intrin/kprintf.h"
#include "libc/intrin/spinlock.h"
#include "libc/nexgen32e/rdtsc.h"
#include "libc/nexgen32e/threaded.h"
#include "libc/nexgen32e/x86feature.h"
#include "libc/nt/struct/filetime.h"
#include "libc/nt/synchronization.h"
#include "libc/sysv/consts/clock.h"
#include "libc/sysv/errfuns.h"
#include "libc/time/clockstonanos.internal.h"
textwindows int sys_clock_gettime_nt(int clockid, struct timespec *ts) {
int64_t ms;
uint64_t nanos;
static bool once;
static char lock;
struct timespec res;
static uint64_t base;
struct NtFileTime ft;
static struct timespec mono;
if (!ts) return efault();
@ -32,21 +44,21 @@ textwindows int sys_clock_gettime_nt(int clockid, struct timespec *ts) {
GetSystemTimeAsFileTime(&ft);
*ts = FileTimeToTimeSpec(ft);
return 0;
} else if (clockid == CLOCK_MONOTONIC || clockid == CLOCK_MONOTONIC_RAW) {
ms = GetTickCount64();
res.tv_sec = ms / 1000;
res.tv_nsec = ms % 1000 * 1000000;
res.tv_nsec += rdtsc() / 3 % 1000000000;
if (res.tv_nsec > 1000000000) {
res.tv_nsec -= 1000000000;
res.tv_sec += 1;
}
if (res.tv_sec > mono.tv_sec ||
(res.tv_sec == mono.tv_sec && res.tv_nsec > mono.tv_nsec)) {
mono = res;
} else {
res = mono;
} else if ((clockid == CLOCK_MONOTONIC || clockid == CLOCK_MONOTONIC_RAW) &&
X86_HAVE(INVTSC)) {
// this routine stops being monotonic after 194 years of uptime
if (__threaded) _spinlock(&lock);
if (UNLIKELY(!once)) {
GetSystemTimeAsFileTime(&ft);
mono = FileTimeToTimeSpec(ft);
base = rdtsc();
once = true;
}
nanos = ClocksToNanos(rdtsc(), base);
res = mono;
res.tv_sec += nanos / 1000000000;
res.tv_nsec += nanos % 1000000000;
_spunlock(&lock);
*ts = res;
return 0;
} else {

6
libc/calls/clock_gettime.c
View file

@ -57,7 +57,6 @@
*/
int clock_gettime(int clockid, struct timespec *ts) {
int rc;
char *buf;
if (IsAsan() && !__asan_is_valid_timespec(ts)) {
rc = efault();
} else {
@ -65,9 +64,8 @@ int clock_gettime(int clockid, struct timespec *ts) {
}
#if SYSDEBUG
if (!__time_critical) {
buf = alloca(45);
STRACE("clock_gettime(%d, [%s]) → %d% m", clockid,
DescribeTimespec(buf, 45, rc, ts), rc);
STRACE("clock_gettime(%d, [%s]) → %d% m", clockid, DescribeTimespec(rc, ts),
rc);
}
#endif
return rc;

4
libc/calls/directmap.c
View file

@ -16,10 +16,13 @@
│ TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR │
│ PERFORMANCE OF THIS SOFTWARE. │
╚─────────────────────────────────────────────────────────────────────────────*/
#include "libc/bits/likely.h"
#include "libc/calls/strace.internal.h"
#include "libc/calls/syscall-sysv.internal.h"
#include "libc/errno.h"
#include "libc/intrin/describeflags.internal.h"
#include "libc/intrin/kprintf.h"
#include "libc/intrin/spinlock.h"
#include "libc/nt/runtime.h"
#include "libc/runtime/directmap.internal.h"
#include "libc/runtime/memtrack.internal.h"
@ -38,7 +41,6 @@
*/
struct DirectMap sys_mmap(void *addr, size_t size, int prot, int flags, int fd,
int64_t off) {
/* asan runtime depends on this function */
struct DirectMap d;
if (!IsWindows() && !IsMetal()) {
d.addr = __sys_mmap(addr, size, prot, flags, fd, off, off);

5
libc/calls/faccessat.c
View file

@ -41,7 +41,6 @@
*/
int faccessat(int dirfd, const char *path, int mode, uint32_t flags) {
int rc;
char buf[12];
if (IsAsan() && !__asan_is_valid(path, 1)) {
rc = efault();
} else if (weaken(__zipos_notat) &&
@ -52,7 +51,7 @@ int faccessat(int dirfd, const char *path, int mode, uint32_t flags) {
} else {
rc = sys_faccessat_nt(dirfd, path, mode, flags);
}
STRACE("faccessat(%s, %#s, %#o, %#x) → %d% m", DescribeDirfd(buf, dirfd),
path, mode, flags, rc);
STRACE("faccessat(%s, %#s, %#o, %#x) → %d% m", DescribeDirfd(dirfd), path,
mode, flags, rc);
return rc;
}

5
libc/calls/fchmodat.c
View file

@ -43,7 +43,6 @@
*/
int fchmodat(int dirfd, const char *path, uint32_t mode, int flags) {
int rc;
char buf[12];
if (IsAsan() && !__asan_is_valid(path, 1)) {
rc = efault();
} else if (weaken(__zipos_notat) && (rc = __zipos_notat(dirfd, path)) == -1) {
@ -53,7 +52,7 @@ int fchmodat(int dirfd, const char *path, uint32_t mode, int flags) {
} else {
rc = sys_fchmodat_nt(dirfd, path, mode, flags);
}
STRACE("fchmodat(%s, %#s, %#o, %d) → %d% m", DescribeDirfd(buf, dirfd), path,
mode, flags, rc);
STRACE("fchmodat(%s, %#s, %#o, %d) → %d% m", DescribeDirfd(dirfd), path, mode,
flags, rc);
return rc;
}

5
libc/calls/fchownat.c
View file

@ -42,7 +42,6 @@
int fchownat(int dirfd, const char *path, uint32_t uid, uint32_t gid,
int flags) {
int rc;
char sb[12];
if (IsAsan() && !__asan_is_valid(path, 1)) {
rc = efault();
} else if (weaken(__zipos_notat) && (rc = __zipos_notat(dirfd, path)) == -1) {
@ -50,7 +49,7 @@ int fchownat(int dirfd, const char *path, uint32_t uid, uint32_t gid,
} else {
rc = sys_fchownat(dirfd, path, uid, gid, flags);
}
STRACE("fchownat(%s, %#s, %d, %d, %#b) → %d% m", DescribeDirfd(sb, dirfd),
path, uid, gid, flags, rc);
STRACE("fchownat(%s, %#s, %d, %d, %#b) → %d% m", DescribeDirfd(dirfd), path,
uid, gid, flags, rc);
return rc;
}

9
libc/calls/fstatat.c
View file

@ -28,13 +28,13 @@
#include "libc/intrin/describeflags.internal.h"
#include "libc/intrin/kprintf.h"
#include "libc/log/log.h"
#include "libc/mem/alloca.h"
#include "libc/str/str.h"
#include "libc/sysv/consts/at.h"
#include "libc/sysv/errfuns.h"
#include "libc/zipos/zipos.internal.h"
static inline const char *__strace_fstatat_flags(int flags) {
static char buf[12];
static inline const char *__strace_fstatat_flags(char buf[12], int flags) {
if (flags == AT_SYMLINK_NOFOLLOW) return "AT_SYMLINK_NOFOLLOW";
FormatInt32(buf, flags);
return buf;
@ -55,7 +55,6 @@ static inline const char *__strace_fstatat_flags(int flags) {
int fstatat(int dirfd, const char *path, struct stat *st, int flags) {
/* execve() depends on this */
int rc;
char buf[12];
struct ZiposUri zipname;
if (__isfdkind(dirfd, kFdZip)) {
STRACE("zipos dirfd not supported yet");
@ -72,7 +71,7 @@ int fstatat(int dirfd, const char *path, struct stat *st, int flags) {
} else {
rc = sys_fstatat_nt(dirfd, path, st, flags);
}
STRACE("fstatat(%s, %#s, [%s], %s) → %d% m", DescribeDirfd(buf, dirfd), path,
DescribeStat(rc, st), __strace_fstatat_flags(flags), rc);
STRACE("fstatat(%s, %#s, [%s], %s) → %d% m", DescribeDirfd(dirfd), path,
DescribeStat(rc, st), __strace_fstatat_flags(alloca(12), flags), rc);
return rc;
}

3
libc/calls/getrlimit.c
View file

@ -35,7 +35,6 @@
*/
int getrlimit(int resource, struct rlimit *rlim) {
int rc;
char buf[64];
if (resource == 127) {
rc = einval();
} else if (!rlim || (IsAsan() && !__asan_is_valid(rlim, sizeof(*rlim)))) {
@ -50,6 +49,6 @@ int getrlimit(int resource, struct rlimit *rlim) {
rc = einval();
}
STRACE("getrlimit(%s, [%s]) → %d% m", DescribeRlimitName(resource),
DescribeRlimit(buf, sizeof(buf), rc, rlim), rc);
DescribeRlimit(rc, rlim), rc);
return rc;
}

4
libc/calls/ioctl_tcsets-nt.c
View file

@ -63,7 +63,7 @@ textwindows int ioctl_tcsets_nt(int ignored, uint64_t request,
}
ok = SetConsoleMode(in, inmode);
NTTRACE("SetConsoleMode(%p, %s) → %hhhd", in,
DescribeNtConsoleModeInputFlags(inmode), ok);
DescribeNtConsoleInFlags(inmode), ok);
}
if (outok) {
@ -77,7 +77,7 @@ textwindows int ioctl_tcsets_nt(int ignored, uint64_t request,
}
ok = SetConsoleMode(out, outmode);
NTTRACE("SetConsoleMode(%p, %s) → %hhhd", out,
DescribeNtConsoleModeOutputFlags(outmode), ok);
DescribeNtConsoleOutFlags(outmode), ok);
}
return 0;

6
libc/calls/linkat.c
View file

@ -40,7 +40,6 @@
int linkat(int olddirfd, const char *oldpath, int newdirfd, const char *newpath,
int flags) {
int rc;
char buf[2][12];
if (IsAsan() &&
(!__asan_is_valid(oldpath, 1) || !__asan_is_valid(newpath, 1))) {
rc = efault();
@ -53,8 +52,7 @@ int linkat(int olddirfd, const char *oldpath, int newdirfd, const char *newpath,
} else {
rc = sys_linkat_nt(olddirfd, oldpath, newdirfd, newpath);
}
STRACE("linkat(%s, %#s, %s, %#s, %#b) → %d% m",
DescribeDirfd(buf[0], olddirfd), oldpath,
DescribeDirfd(buf[1], newdirfd), newpath, flags, rc);
STRACE("linkat(%s, %#s, %s, %#s, %#b) → %d% m", DescribeDirfd(olddirfd),
oldpath, DescribeDirfd(newdirfd), newpath, flags, rc);
return rc;
}

4
libc/calls/mkdirat.c
View file

@ -42,7 +42,6 @@
*/
int mkdirat(int dirfd, const char *path, unsigned mode) {
int rc;
char buf[12];
if (IsAsan() && !__asan_is_valid(path, 1)) {
rc = efault();
} else if (weaken(__zipos_notat) && (rc = __zipos_notat(dirfd, path)) == -1) {
@ -52,7 +51,6 @@ int mkdirat(int dirfd, const char *path, unsigned mode) {
} else {
rc = sys_mkdirat_nt(dirfd, path, mode);
}
STRACE("mkdirat(%s, %#s, %#o) → %d% m", DescribeDirfd(buf, dirfd), path, mode,
rc);
STRACE("mkdirat(%s, %#s, %#o) → %d% m", DescribeDirfd(dirfd), path, mode, rc);
return rc;
}

1
libc/calls/munmap-sysv.c
View file

@ -18,6 +18,7 @@
╚─────────────────────────────────────────────────────────────────────────────*/
#include "libc/calls/strace.internal.h"
#include "libc/calls/syscall-sysv.internal.h"
#include "libc/intrin/describeflags.internal.h"
#include "libc/runtime/directmap.internal.h"
#include "libc/runtime/memtrack.internal.h"

6
libc/calls/nanosleep.c
View file

@ -31,7 +31,6 @@
*/
noinstrument int nanosleep(const struct timespec *req, struct timespec *rem) {
int rc;
char buf[2][45];
if (!req || (IsAsan() && (!__asan_is_valid_timespec(req) ||
(rem && !__asan_is_valid_timespec(rem))))) {
rc = efault();
@ -48,9 +47,8 @@ noinstrument int nanosleep(const struct timespec *req, struct timespec *rem) {
rc = sys_nanosleep_nt(req, rem);
}
if (!__time_critical) {
POLLTRACE("nanosleep(%s, [%s]) → %d% m",
DescribeTimespec(buf[0], sizeof(buf[0]), rc, req),
DescribeTimespec(buf[1], sizeof(buf[1]), rc, rem), rc);
POLLTRACE("nanosleep(%s, [%s]) → %d% m", DescribeTimespec(rc, req),
DescribeTimespec(rc, rem), rc);
}
return rc;
}

12
libc/calls/now.c
View file

@ -16,6 +16,7 @@
│ TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR │
│ PERFORMANCE OF THIS SOFTWARE. │
╚─────────────────────────────────────────────────────────────────────────────*/
#include "libc/assert.h"
#include "libc/bits/bits.h"
#include "libc/bits/initializer.internal.h"
#include "libc/bits/safemacros.internal.h"
@ -44,10 +45,10 @@ static long double GetTimeSample(void) {
uint64_t tick1, tick2;
long double time1, time2;
sched_yield();
time1 = dtime(CLOCK_MONOTONIC_FAST);
time1 = dtime(CLOCK_REALTIME_FAST);
tick1 = rdtsc();
nanosleep(&(struct timespec){0, 1000000}, NULL);
time2 = dtime(CLOCK_MONOTONIC_FAST);
time2 = dtime(CLOCK_REALTIME_FAST);
tick2 = rdtsc();
return (time2 - time1) * 1e9 / MAX(1, tick2 - tick1);
}
@ -75,13 +76,13 @@ static long double MeasureNanosPerCycle(void) {
void RefreshTime(void) {
struct Now now;
now.cpn = MeasureNanosPerCycle();
now.r0 = dtime(CLOCK_REALTIME);
now.r0 = dtime(CLOCK_REALTIME_FAST);
now.k0 = rdtsc();
memcpy(&g_now, &now, sizeof(now));
}
static long double nowl_sys(void) {
return dtime(CLOCK_REALTIME);
return dtime(CLOCK_REALTIME_FAST);
}
static long double nowl_art(void) {
@ -92,7 +93,8 @@ static long double nowl_art(void) {
static long double nowl_vdso(void) {
long double secs;
struct timespec tv;
__gettime(CLOCK_REALTIME, &tv);
assert(__gettime);
__gettime(CLOCK_REALTIME_FAST, &tv);
secs = tv.tv_nsec;
secs *= 1 / 1e9L;
secs += tv.tv_sec;

4
libc/calls/openat.c
View file

@ -24,7 +24,6 @@
#include "libc/calls/syscall-nt.internal.h"
#include "libc/calls/syscall-sysv.internal.h"
#include "libc/dce.h"
#include "libc/fmt/magnumstrs.internal.h"
#include "libc/intrin/asan.internal.h"
#include "libc/intrin/describeflags.internal.h"
#include "libc/log/log.h"
@ -52,7 +51,6 @@
int openat(int dirfd, const char *file, int flags, ...) {
int rc;
va_list va;
char buf[12];
unsigned mode;
struct ZiposUri zipname;
va_start(va, flags);
@ -80,7 +78,7 @@ int openat(int dirfd, const char *file, int flags, ...) {
} else {
rc = efault();
}
STRACE("openat(%s, %#s, %s, %#o) → %d% m", DescribeDirfd(buf, dirfd), file,
STRACE("openat(%s, %#s, %s, %#o) → %d% m", DescribeDirfd(dirfd), file,
DescribeOpenFlags(flags), (flags & (O_CREAT | O_TMPFILE)) ? mode : 0,
rc);
return rc;

8
libc/calls/poll.c
View file

@ -89,13 +89,11 @@ int poll(struct pollfd *fds, size_t nfds, int timeout_ms) {
(IsAsan() && !__asan_is_valid(fds, nfds * sizeof(struct pollfd)))) {
kprintf("%p", fds);
} else {
char flagbuf[2][64];
kprintf("[{");
for (i = 0; i < MIN(5, nfds); ++i) {
kprintf(
"%s{%d, %s, %s}", i ? ", " : "", fds[i].fd,
DescribePollFlags(flagbuf[0], sizeof(flagbuf[0]), fds[i].events),
DescribePollFlags(flagbuf[1], sizeof(flagbuf[1]), fds[i].revents));
kprintf("%s{%d, %s, %s}", i ? ", " : "", fds[i].fd,
DescribePollFlags(fds[i].events),
DescribePollFlags(fds[i].revents));
}
kprintf("%s}]", i == 5 ? "..." : "");
}

14
libc/calls/prctl.c
View file

@ -19,22 +19,10 @@
#include "libc/calls/calls.h"
#include "libc/calls/strace.internal.h"
#include "libc/errno.h"
#include "libc/intrin/describeflags.internal.h"
#include "libc/sysv/consts/pr.h"
#include "libc/sysv/errfuns.h"
static const char *DescribePrctlOperation(int x) {
switch (x) {
case PR_SET_NO_NEW_PRIVS:
return "PR_SET_NO_NEW_PRIVS";
case PR_SET_SECCOMP:
return "PR_SET_SECCOMP";
case PR_GET_SECCOMP:
return "PR_GET_SECCOMP";
default:
return "PRCTL_???";
}
}
/**
* Tunes process on Linux.
*

3
libc/calls/readlinkat.c
View file

@ -45,7 +45,6 @@
* @asyncsignalsafe
*/
ssize_t readlinkat(int dirfd, const char *path, char *buf, size_t bufsiz) {
char sb[12];
ssize_t bytes;
if ((IsAsan() && !__asan_is_valid(buf, bufsiz)) || (bufsiz && !buf)) {
bytes = efault();
@ -58,7 +57,7 @@ ssize_t readlinkat(int dirfd, const char *path, char *buf, size_t bufsiz) {
} else {
bytes = sys_readlinkat_nt(dirfd, path, buf, bufsiz);
}
STRACE("readlinkat(%s, %#s, [%#.*s]) → %d% m", DescribeDirfd(sb, dirfd), path,
STRACE("readlinkat(%s, %#s, [%#.*s]) → %d% m", DescribeDirfd(dirfd), path,
MAX(0, bytes), buf, bytes);
return bytes;
}

5
libc/calls/renameat.c
View file

@ -46,7 +46,6 @@
int renameat(int olddirfd, const char *oldpath, int newdirfd,
const char *newpath) {
int rc;
char buf[2][12];
if (IsAsan() &&
(!__asan_is_valid(oldpath, 1) || !__asan_is_valid(newpath, 1))) {
rc = efault();
@ -59,7 +58,7 @@ int renameat(int olddirfd, const char *oldpath, int newdirfd,
} else {
rc = sys_renameat_nt(olddirfd, oldpath, newdirfd, newpath);
}
STRACE("renameat(%s, %#s, %s, %#s) → %d% m", DescribeDirfd(buf[0], olddirfd),
oldpath, DescribeDirfd(buf[1], newdirfd), newpath, rc);
STRACE("renameat(%s, %#s, %s, %#s) → %d% m", DescribeDirfd(olddirfd), oldpath,
DescribeDirfd(newdirfd), newpath, rc);
return rc;
}

5
libc/calls/samplepids.c
View file

@ -19,6 +19,8 @@
#include "libc/assert.h"
#include "libc/calls/internal.h"
#include "libc/dce.h"
#include "libc/intrin/spinlock.h"
#include "libc/nexgen32e/threaded.h"
#include "libc/rand/lcg.internal.h"
/**
@ -33,9 +35,12 @@
textwindows int __sample_pids(int pids[hasatleast 64],
int64_t handles[hasatleast 64],
bool exploratory) {
static char lock;
static uint64_t rando = 1;
uint32_t i, j, base, count;
if (__threaded) _spinlock(&lock);
base = KnuthLinearCongruentialGenerator(&rando) >> 32;
_spunlock(&lock);
for (count = i = 0; i < g_fds.n; ++i) {
j = (base + i) % g_fds.n;
if (g_fds.p[j].kind == kFdProcess && (!exploratory || !g_fds.p[j].zombie)) {

15
libc/calls/seccomp.c
View file

@ -25,21 +25,6 @@
#include "libc/sysv/consts/pr.h"
#include "libc/sysv/errfuns.h"
static const char *DescribeSeccompOperation(int x) {
switch (x) {
case SECCOMP_SET_MODE_STRICT:
return "SECCOMP_SET_MODE_STRICT";
case SECCOMP_SET_MODE_FILTER:
return "SECCOMP_SET_MODE_FILTER";
case SECCOMP_GET_ACTION_AVAIL:
return "SECCOMP_GET_ACTION_AVAIL";
case SECCOMP_GET_NOTIF_SIZES:
return "SECCOMP_GET_NOTIF_SIZES";
default:
return "SECCOMP_???";
}
}
/**
* Tunes Linux security policy.
*

3
libc/calls/setrlimit.c
View file

@ -66,7 +66,6 @@
*/
int setrlimit(int resource, const struct rlimit *rlim) {
int rc;
char buf[64];
if (resource == 127) {
rc = einval();
} else if (!rlim || (IsAsan() && !__asan_is_valid(rlim, sizeof(*rlim)))) {
@ -84,6 +83,6 @@ int setrlimit(int resource, const struct rlimit *rlim) {
rc = einval();
}
STRACE("setrlimit(%s, %s) → %d% m", DescribeRlimitName(resource),
DescribeRlimit(buf, sizeof(buf), 0, rlim), rc);
DescribeRlimit(0, rlim), rc);
return rc;
}

6
libc/calls/sigaction.c
View file

@ -444,7 +444,6 @@ static int __sigaction(int sig, const struct sigaction *act,
*/
int sigaction(int sig, const struct sigaction *act, struct sigaction *oldact) {
int rc;
char buf[2][128];
if (sig == SIGKILL || sig == SIGSTOP) {
rc = einval();
} else {
@ -452,8 +451,7 @@ int sigaction(int sig, const struct sigaction *act, struct sigaction *oldact) {
rc = __sigaction(sig, act, oldact);
__sig_unlock();
}
STRACE("sigaction(%G, %s, [%s]) → %d% m", sig,
DescribeSigaction(buf[0], sizeof(buf[0]), 0, act),
DescribeSigaction(buf[1], sizeof(buf[1]), rc, oldact), rc);
STRACE("sigaction(%G, %s, [%s]) → %d% m", sig, DescribeSigaction(0, act),
DescribeSigaction(rc, oldact), rc);
return rc;
}

6
libc/calls/sigaltstack.c
View file

@ -80,7 +80,6 @@ int sigaltstack(const struct sigaltstack *neu, struct sigaltstack *old) {
int rc;
void *b;
const void *a;
char buf[2][128];
struct sigaltstack_bsd bsd;
if (IsAsan() && ((old && __asan_check(old, sizeof(*old)).kind) ||
(neu && (__asan_check(neu, sizeof(*neu)).kind ||
@ -114,8 +113,7 @@ int sigaltstack(const struct sigaltstack *neu, struct sigaltstack *old) {
} else {
rc = enosys();
}
STRACE("sigaltstack(%s, [%s]) → %d% m",
DescribeSigaltstk(buf[0], sizeof(buf[0]), 0, neu),
DescribeSigaltstk(buf[0], sizeof(buf[0]), 0, old), rc);
STRACE("sigaltstack(%s, [%s]) → %d% m", DescribeSigaltstk(0, neu),
DescribeSigaltstk(0, old), rc);
return rc;
}

15
libc/calls/sigprocmask.c
View file

@ -32,14 +32,6 @@
#include "libc/sysv/consts/sig.h"
#include "libc/sysv/errfuns.h"
static const char *DescribeHow(char buf[12], int how) {
if (how == SIG_BLOCK) return "SIG_BLOCK";
if (how == SIG_UNBLOCK) return "SIG_UNBLOCK";
if (how == SIG_SETMASK) return "SIG_SETMASK";
FormatInt32(buf, how);
return buf;
}
/**
* Changes signal blocking state of calling thread, e.g.:
*
@ -58,8 +50,6 @@ static const char *DescribeHow(char buf[12], int how) {
*/
int sigprocmask(int how, const sigset_t *opt_set, sigset_t *opt_out_oldset) {
sigset_t old;
char howbuf[12];
char buf[2][41];
int res, rc, arg1;
const sigset_t *arg2;
sigemptyset(&old);
@ -77,8 +67,7 @@ int sigprocmask(int how, const sigset_t *opt_set, sigset_t *opt_out_oldset) {
if (rc != -1 && opt_out_oldset) {
*opt_out_oldset = old;
}
STRACE("sigprocmask(%s, %s, [%s]) → %d% m", DescribeHow(howbuf, how),
DescribeSigset(buf[0], sizeof(buf[0]), 0, opt_set),
DescribeSigset(buf[1], sizeof(buf[1]), rc, opt_out_oldset), rc);
STRACE("sigprocmask(%s, %s, [%s]) → %d% m", DescribeHow(how),
DescribeSigset(0, opt_set), DescribeSigset(rc, opt_out_oldset), rc);
return rc;
}

3
libc/calls/sigsuspend.c
View file

@ -44,10 +44,9 @@
*/
int sigsuspend(const sigset_t *ignore) {
int rc;
char buf[41];
long ms, totoms;
sigset_t save, mask, *arg;
STRACE("sigsuspend(%s) → ...", DescribeSigset(buf, sizeof(buf), 0, ignore));
STRACE("sigsuspend(%s) → ...", DescribeSigset(0, ignore));
if (IsAsan() && ignore && !__asan_is_valid(ignore, sizeof(*ignore))) {
rc = efault();
} else if (IsXnu() || IsOpenbsd()) {

5
libc/calls/symlinkat.c
View file

@ -41,7 +41,6 @@
*/
int symlinkat(const char *target, int newdirfd, const char *linkpath) {
int rc;
char buf[12];
if (IsAsan() &&
(!__asan_is_valid(target, 1) || !__asan_is_valid(linkpath, 1))) {
rc = efault();
@ -51,7 +50,7 @@ int symlinkat(const char *target, int newdirfd, const char *linkpath) {
} else {
rc = sys_symlinkat_nt(target, newdirfd, linkpath);
}
STRACE("symlinkat(%#s, %s, %#s) → %d% m", target,
DescribeDirfd(buf, newdirfd), linkpath);
STRACE("symlinkat(%#s, %s, %#s) → %d% m", target, DescribeDirfd(newdirfd),
linkpath);
return rc;
}

5
libc/calls/unlinkat.c
View file

@ -40,7 +40,6 @@
*/
int unlinkat(int dirfd, const char *path, int flags) {
int rc;
char buf[12];
if (IsAsan() && !__asan_is_valid(path, 1)) {
rc = efault();
} else if (weaken(__zipos_notat) && (rc = __zipos_notat(dirfd, path)) == -1) {
@ -50,7 +49,7 @@ int unlinkat(int dirfd, const char *path, int flags) {
} else {
rc = sys_unlinkat_nt(dirfd, path, flags);
}
STRACE("unlinkat(%s, %#s, %#b) → %d% m", DescribeDirfd(buf, dirfd), path,
flags, rc);
STRACE("unlinkat(%s, %#s, %#b) → %d% m", DescribeDirfd(dirfd), path, flags,
rc);
return rc;
}

7
libc/calls/utimensat.c
View file

@ -54,7 +54,6 @@
int utimensat(int dirfd, const char *path, const struct timespec ts[2],
int flags) {
int rc;
char buf[12];
if (IsAsan() && ((dirfd == AT_FDCWD && !__asan_is_valid(path, 1)) ||
(ts && (!__asan_is_valid_timespec(ts + 0) ||
!__asan_is_valid_timespec(ts + 1))))) {
@ -72,11 +71,11 @@ int utimensat(int dirfd, const char *path, const struct timespec ts[2],
}
if (ts) {
STRACE("utimensat(%s, %#s, {{%,ld, %,ld}, {%,ld, %,ld}}, %#b) → %d% m",
DescribeDirfd(buf, dirfd), path, ts[0].tv_sec, ts[0].tv_nsec,
DescribeDirfd(dirfd), path, ts[0].tv_sec, ts[0].tv_nsec,
ts[1].tv_sec, ts[1].tv_nsec, flags, rc);
} else {
STRACE("utimensat(%s, %#s, 0, %#b) → %d% m", DescribeDirfd(buf, dirfd),
path, flags, rc);
STRACE("utimensat(%s, %#s, 0, %#b) → %d% m", DescribeDirfd(dirfd), path,
flags, rc);
}
return rc;
}

6
libc/fmt/magnumstrs.internal.h
View file

@ -25,11 +25,7 @@ hidden extern const struct MagnumStr kSignalNames[];
hidden extern const struct MagnumStr kSockOptnames[];
hidden extern const struct MagnumStr kTcpOptnames[];
char *DescribeClockName(int) hidden;
char *DescribeOpenFlags(int) hidden;
char *DescribeSockLevel(int) hidden;
char *DescribeSockOptname(int, int) hidden;
char *GetMagnumStr(const struct MagnumStr *, int) hidden;
char *GetMagnumStr(const struct MagnumStr *, int);
COSMOPOLITAN_C_END_
#endif /* !(__ASSEMBLER__ + __LINKER__ + 0) */

11
libc/intrin/asan.c
View file

@ -1308,13 +1308,13 @@ void __asan_map_shadow(uintptr_t p, size_t n) {
size = (size_t)i << 16;
addr = (void *)(intptr_t)((int64_t)((uint64_t)a << 32) >> 16);
prot = PROT_READ | PROT_WRITE;
flag = MAP_PRIVATE | MAP_FIXED | *weaken(MAP_ANONYMOUS);
flag = MAP_PRIVATE | MAP_FIXED | MAP_ANONYMOUS;
sm = weaken(sys_mmap)(addr, size, prot, flag, -1, 0);
if (sm.addr == MAP_FAILED ||
weaken(TrackMemoryInterval)(
m, a, a + i - 1, sm.maphandle, PROT_READ | PROT_WRITE,
MAP_PRIVATE | *weaken(MAP_ANONYMOUS) | MAP_FIXED, false, false, 0,
size) == -1) {
weaken(TrackMemoryInterval)(m, a, a + i - 1, sm.maphandle,
PROT_READ | PROT_WRITE,
MAP_PRIVATE | MAP_ANONYMOUS | MAP_FIXED,
false, false, 0, size) == -1) {
kprintf("error: could not map asan shadow memory\n");
__asan_die()();
__asan_unreachable();
@ -1379,7 +1379,6 @@ textstartup void __asan_init(int argc, char **argv, char **envp,
}
REQUIRE(_mmi);
REQUIRE(sys_mmap);
REQUIRE(MAP_ANONYMOUS);
REQUIRE(TrackMemoryInterval);
if (weaken(hook_malloc) || weaken(hook_calloc) || weaken(hook_realloc) ||
weaken(hook_realloc_in_place) || weaken(hook_free) ||

23
libc/intrin/assertdisable.c Normal file
View file

@ -0,0 +1,23 @@
/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:2;tab-width:8;coding:utf-8 -*-│
│vi: set net ft=c ts=2 sts=2 sw=2 fenc=utf-8 :vi│
╞══════════════════════════════════════════════════════════════════════════════╡
│ Copyright 2022 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. │
╚─────────────────────────────────────────────────────────────────────────────*/
/**
* Disables assert() failures at runtime.
*/
bool __assert_disable;

48
libc/intrin/assertfail.greg.c
View file

@ -19,6 +19,7 @@
#include "libc/assert.h"
#include "libc/bits/weaken.h"
#include "libc/calls/calls.h"
#include "libc/calls/syscall-sysv.internal.h"
#include "libc/intrin/kprintf.h"
#include "libc/intrin/lockcmpxchgp.h"
#include "libc/log/backtrace.internal.h"
@ -30,32 +31,33 @@
/**
* Handles failure of assert() macro.
*/
relegated wontreturn void __assert_fail(const char *expr, const char *file,
int line) {
relegated void __assert_fail(const char *expr, const char *file, int line) {
int me, owner;
static int sync;
--__strace;
--__ftrace;
owner = 0;
me = gettid();
kprintf("%s:%d: assert(%s) failed (tid %d)\n", file, line, expr, me);
if (_lockcmpxchgp(&sync, &owner, me)) {
__restore_tty();
if (weaken(ShowBacktrace)) {
weaken(ShowBacktrace)(2, __builtin_frame_address(0));
} else if (weaken(PrintBacktraceUsingSymbols) && weaken(GetSymbolTable)) {
weaken(PrintBacktraceUsingSymbols)(2, __builtin_frame_address(0),
weaken(GetSymbolTable)());
if (!__assert_disable) {
--__strace;
--__ftrace;
owner = 0;
me = sys_gettid();
kprintf("%s:%d: assert(%s) failed (tid %d)\n", file, line, expr, me);
if (_lockcmpxchgp(&sync, &owner, me)) {
__restore_tty();
if (weaken(ShowBacktrace)) {
weaken(ShowBacktrace)(2, __builtin_frame_address(0));
} else if (weaken(PrintBacktraceUsingSymbols) && weaken(GetSymbolTable)) {
weaken(PrintBacktraceUsingSymbols)(2, __builtin_frame_address(0),
weaken(GetSymbolTable)());
} else {
kprintf("can't backtrace b/c `ShowCrashReports` not linked\n");
}
__restorewintty();
_Exit(23);
} else if (owner == me) {
kprintf("assert failed while failing\n");
__restorewintty();
_Exit(24);
} else {
kprintf("can't backtrace b/c `ShowCrashReports` not linked\n");
_Exit1(25);
}
__restorewintty();
_Exit(23);
} else if (owner == me) {
kprintf("assert failed while failing\n");
__restorewintty();
_Exit(24);
} else {
_Exit1(25);
}
}

4
libc/intrin/createfile.c
View file

@ -45,7 +45,7 @@ textwindows int64_t CreateFile(
DescribeNtFileShareFlags(dwShareMode),
DescribeNtSecurityAttributes(opt_lpSecurityAttributes),
DescribeNtCreationDisposition(dwCreationDisposition),
DescribeNtFileFlagsAndAttributes(dwFlagsAndAttributes),
opt_hTemplateFile, hHandle);
DescribeNtFileFlagAttr(dwFlagsAndAttributes), opt_hTemplateFile,
hHandle);
return hHandle;
}

2
libc/intrin/createsymboliclink.c
View file

@ -34,6 +34,6 @@ bool32 CreateSymbolicLink(const char16_t *lpSymlinkFileName,
ok = __imp_CreateSymbolicLinkW(lpSymlinkFileName, lpTargetPathName, dwFlags);
if (!ok) __winerr();
NTTRACE("CreateSymbolicLink(%#hs, %#hs, %s) → %hhhd% m", lpSymlinkFileName,
lpTargetPathName, DescribeNtSymbolicLinkFlags(dwFlags), ok);
lpTargetPathName, DescribeNtSymlinkFlags(dwFlags), ok);
return ok;
}

24
libc/calls/describeclockname.c → libc/intrin/describeclockname.c
View file

@ -18,18 +18,34 @@
╚─────────────────────────────────────────────────────────────────────────────*/
#include "libc/fmt/itoa.h"
#include "libc/fmt/magnumstrs.internal.h"
#include "libc/intrin/describeflags.internal.h"
#include "libc/str/str.h"
#include "libc/sysv/consts/sol.h"
static inline char *StpCpy(char *d, const char *s) {
size_t i;
for (i = 0;; ++i) {
if (!(d[i] = s[i])) {
return d + i;
}
}
}
/**
* Describes clock_gettime() clock argument.
*/
char *DescribeClockName(int x) {
const char *(DescribeClockName)(char buf[32], int x) {
int i;
char *s;
_Alignas(char) static char buf[32];
char *s, *p;
if ((s = GetMagnumStr(kClockNames, x))) {
stpcpy(stpcpy(buf, "CLOCK_"), s);
p = buf;
*p++ = 'C';
*p++ = 'L';
*p++ = 'O';
*p++ = 'C';
*p++ = 'K';
*p++ = '_';
StpCpy(p, s);
return buf;
} else {
FormatInt32(buf, x);

2
libc/intrin/describedirfd.greg.c → libc/intrin/describedirfd.c
View file

@ -20,7 +20,7 @@
#include "libc/intrin/describeflags.internal.h"
#include "libc/sysv/consts/at.h"
const char *DescribeDirfd(char buf[hasatleast 12], int dirfd) {
const char *(DescribeDirfd)(char buf[12], int dirfd) {
if (dirfd == AT_FDCWD) return "AT_FDCWD";
FormatInt32(buf, dirfd);
return buf;

1
libc/intrin/describeflags.greg.c → libc/intrin/describeflags.c
View file

@ -19,6 +19,7 @@
#include "libc/intrin/describeflags.internal.h"
#include "libc/intrin/kprintf.h"
// TODO(jart): Fork this function into ASAN and non-ASAN versions.
const char *DescribeFlags(char *p, size_t n, struct DescribeFlags *d, size_t m,
const char *prefix, unsigned x) {
bool t;

112
libc/intrin/describeflags.internal.h
View file

@ -7,7 +7,10 @@
#include "libc/calls/struct/sigset.h"
#include "libc/calls/struct/stat.h"
#include "libc/calls/struct/timespec.h"
#include "libc/mem/alloca.h"
#include "libc/nt/struct/iovec.h"
#include "libc/nt/struct/securityattributes.h"
#include "libc/sock/struct/sockaddr.h"
#if !(__ASSEMBLER__ + __LINKER__ + 0)
COSMOPOLITAN_C_START_
@ -19,39 +22,90 @@ struct thatispacked DescribeFlags {
const char *DescribeFlags(char *, size_t, struct DescribeFlags *, size_t,
const char *, unsigned);
const char *DescribeMapFlags(int);
const char *DescribeProtFlags(int);
const char *DescribeRemapFlags(int);
const char *DescribeRlimitName(int);
const char *DescribePersonalityFlags(int);
const char *DescribeSeccompOperationFlags(int);
const char *DescribePollFlags(char *, size_t, int);
const char *DescribeStat(int, const struct stat *);
const char *DescribeDirfd(char[hasatleast 12], int);
const char *DescribeSigaction(char *, size_t, int, const struct sigaction *);
const char *DescribeSigaltstk(char *, size_t, int, const struct sigaltstack *);
const char *DescribeSigset(char *, size_t, int, const sigset_t *);
const char *DescribeRlimit(char *, size_t, int, const struct rlimit *);
const char *DescribeTimespec(char *, size_t, int, const struct timespec *);
const char *DescribeNtPageFlags(uint32_t);
const char *DescribeNtStartFlags(uint32_t);
const char *DescribeNtFileMapFlags(uint32_t);
const char *DescribeNtFiletypeFlags(uint32_t);
const char *DescribeNtPipeOpenFlags(uint32_t);
const char *DescribeNtPipeModeFlags(uint32_t);
const char *DescribeNtFileShareFlags(uint32_t);
const char *DescribeNtFileAccessFlags(uint32_t);
const char *DescribeNtSymbolicLinkFlags(uint32_t);
const char *DescribeNtProcessAccessFlags(uint32_t);
const char *DescribeNtMoveFileInputFlags(uint32_t);
const char *DescribeClockName(char[32], int);
const char *DescribeDirfd(char[12], int);
const char *DescribeFrame(char[32], int);
const char *DescribeHow(char[12], int);
const char *DescribeMapFlags(char[64], int);
const char *DescribeMapping(char[8], int, int);
const char *DescribeNtConsoleInFlags(char[256], uint32_t);
const char *DescribeNtConsoleOutFlags(char[128], uint32_t);
const char *DescribeNtCreationDisposition(uint32_t);
const char *DescribeNtConsoleModeInputFlags(uint32_t);
const char *DescribeNtConsoleModeOutputFlags(uint32_t);
const char *DescribeNtFileFlagsAndAttributes(uint32_t);
const char *DescribeNtFileAccessFlags(char[512], uint32_t);
const char *DescribeNtFileFlagAttr(char[256], uint32_t);
const char *DescribeNtFileMapFlags(char[64], uint32_t);
const char *DescribeNtFileShareFlags(char[64], uint32_t);
const char *DescribeNtFiletypeFlags(char[64], uint32_t);
const char *DescribeNtMovFileInpFlags(char[256], uint32_t);
const char *DescribeNtPageFlags(char[64], uint32_t);
const char *DescribeNtPipeModeFlags(char[64], uint32_t);
const char *DescribeNtPipeOpenFlags(char[64], uint32_t);
const char *DescribeNtProcAccessFlags(char[256], uint32_t);
const char *DescribeNtSecurityAttributes(struct NtSecurityAttributes *);
const char *DescribeNtStartFlags(char[128], uint32_t);
const char *DescribeNtSymlinkFlags(char[64], uint32_t);
const char *DescribeOpenFlags(char[128], int);
const char *DescribePersonalityFlags(char[128], int);
const char *DescribePollFlags(char[64], int);
const char *DescribePrctlOperation(int);
const char *DescribeProtFlags(char[48], int);
const char *DescribeRemapFlags(char[48], int);
const char *DescribeRlimit(char[64], int, const struct rlimit *);
const char *DescribeRlimitName(char[12], int);
const char *DescribeSeccompOperation(int);
const char *DescribeSigaction(char[128], int, const struct sigaction *);
const char *DescribeSigaltstk(char[128], int, const struct sigaltstack *);
const char *DescribeSigset(char[64], int, const sigset_t *);
const char *DescribeSockLevel(char[12], int);
const char *DescribeSockOptname(char[32], int, int);
const char *DescribeSockaddr(char[128], const struct sockaddr *, size_t);
const char *DescribeSocketFamily(char[12], int);
const char *DescribeSocketProtocol(char[12], int);
const char *DescribeSocketType(char[64], int);
const char *DescribeStat(char[300], int, const struct stat *);
const char *DescribeTimespec(char[45], int, const struct timespec *);
void DescribeIov(const struct iovec *, int, ssize_t);
void DescribeIovNt(const struct NtIovec *, uint32_t, ssize_t);
#define DescribeClockName(x) DescribeClockName(alloca(32), x)
#define DescribeDirfd(dirfd) DescribeDirfd(alloca(12), dirfd)
#define DescribeFrame(x) DescribeFrame(alloca(32), x)
#define DescribeHow(x) DescribeHow(alloca(12), x)
#define DescribeMapFlags(dirfd) DescribeMapFlags(alloca(64), dirfd)
#define DescribeMapping(x, y) DescribeMapping(alloca(8), x, y)
#define DescribeNtConsoleInFlags(x) DescribeNtConsoleInFlags(alloca(256), x)
#define DescribeNtConsoleOutFlags(x) DescribeNtConsoleOutFlags(alloca(128), x)
#define DescribeNtFileAccessFlags(x) DescribeNtFileAccessFlags(alloca(512), x)
#define DescribeNtFileFlagAttr(x) DescribeNtFileFlagAttr(alloca(256), x)
#define DescribeNtFileMapFlags(x) DescribeNtFileMapFlags(alloca(64), x)
#define DescribeNtFileShareFlags(x) DescribeNtFileShareFlags(alloca(64), x)
#define DescribeNtFiletypeFlags(x) DescribeNtFiletypeFlags(alloca(64), x)
#define DescribeNtMovFileInpFlags(x) DescribeNtMovFileInpFlags(alloca(256), x)
#define DescribeNtPageFlags(x) DescribeNtPageFlags(alloca(64), x)
#define DescribeNtPipeModeFlags(x) DescribeNtPipeModeFlags(alloca(64), x)
#define DescribeNtPipeOpenFlags(x) DescribeNtPipeOpenFlags(alloca(64), x)
#define DescribeNtProcAccessFlags(x) DescribeNtProcAccessFlags(alloca(256), x)
#define DescribeNtStartFlags(x) DescribeNtStartFlags(alloca(128), x)
#define DescribeNtSymlinkFlags(x) DescribeNtSymlinkFlags(alloca(64), x)
#define DescribeOpenFlags(x) DescribeOpenFlags(alloca(128), x)
#define DescribePersonalityFlags(p) DescribePersonalityFlags(alloca(128), p)
#define DescribePollFlags(p) DescribePollFlags(alloca(64), p)
#define DescribeProtFlags(dirfd) DescribeProtFlags(alloca(48), dirfd)
#define DescribeRemapFlags(dirfd) DescribeRemapFlags(alloca(48), dirfd)
#define DescribeRlimit(rc, rl) DescribeRlimit(alloca(64), rc, rl)
#define DescribeRlimitName(rl) DescribeRlimitName(alloca(12), rl)
#define DescribeSigaction(rc, sa) DescribeSigaction(alloca(128), rc, sa)
#define DescribeSigaltstk(rc, ss) DescribeSigaltstk(alloca(128), rc, ss)
#define DescribeSigset(rc, ss) DescribeSigset(alloca(64), rc, ss)
#define DescribeSockLevel(x) DescribeSockLevel(alloca(12), x)
#define DescribeSockOptname(x, y) DescribeSockOptname(alloca(32), x, y)
#define DescribeSockaddr(sa, sz) DescribeSockaddr(alloca(128), sa, sz)
#define DescribeSocketFamily(x) DescribeSocketFamily(alloca(12), x)
#define DescribeSocketProtocol(x) DescribeSocketProtocol(alloca(12), x)
#define DescribeSocketType(x) DescribeSocketType(alloca(64), x)
#define DescribeStat(rc, st) DescribeStat(alloca(300), rc, st)
#define DescribeTimespec(rc, ts) DescribeTimespec(alloca(45), rc, ts)
COSMOPOLITAN_C_END_
#endif /* !(__ASSEMBLER__ + __LINKER__ + 0) */

6
libc/intrin/describeframe.c
View file

@ -16,6 +16,7 @@
│ TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR │
│ PERFORMANCE OF THIS SOFTWARE. │
╚─────────────────────────────────────────────────────────────────────────────*/
#include "libc/intrin/describeflags.internal.h"
#include "libc/intrin/kprintf.h"
#include "libc/macros.internal.h"
#include "libc/runtime/memtrack.internal.h"
@ -25,12 +26,11 @@
#define UNSHADOW(x) ((int64_t)(MAX(0, (x)-0x7fff8000)) << 3)
#define FRAME(x) ((int)((x) >> 16))
noasan const char *DescribeFrame(int x) {
const char *(DescribeFrame)(char buf[32], int x) {
/* asan runtime depends on this function */
char *p;
static char buf[32];
if (IsShadowFrame(x)) {
ksnprintf(buf, sizeof(buf), " shadow=%.8x", FRAME(UNSHADOW(ADDR(x))));
ksnprintf(buf, 32, " shadow=%.8x", FRAME(UNSHADOW(ADDR(x))));
return buf;
return " shadow ";
} else if (IsAutoFrame(x)) {

29
libc/intrin/describehow.c Normal file
View file

@ -0,0 +1,29 @@
/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:2;tab-width:8;coding:utf-8 -*-│
│vi: set net ft=c ts=2 sts=2 sw=2 fenc=utf-8 :vi│
╞══════════════════════════════════════════════════════════════════════════════╡
│ Copyright 2022 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 "libc/fmt/itoa.h"
#include "libc/intrin/describeflags.internal.h"
#include "libc/sysv/consts/sig.h"
const char *(DescribeHow)(char buf[12], int how) {
if (how == SIG_BLOCK) return "SIG_BLOCK";
if (how == SIG_UNBLOCK) return "SIG_UNBLOCK";
if (how == SIG_SETMASK) return "SIG_SETMASK";
FormatInt32(buf, how);
return buf;
}

0
libc/intrin/describeiov.greg.c → libc/intrin/describeiov.c
View file

42
libc/intrin/describeiovnt.c Normal file
View file

@ -0,0 +1,42 @@
/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:2;tab-width:8;coding:utf-8 -*-│
│vi: set net ft=c ts=2 sts=2 sw=2 fenc=utf-8 :vi│
╞══════════════════════════════════════════════════════════════════════════════╡
│ Copyright 2022 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 "libc/dce.h"
#include "libc/intrin/asan.internal.h"
#include "libc/intrin/describeflags.internal.h"
#include "libc/intrin/kprintf.h"
#include "libc/macros.internal.h"
#include "libc/nt/winsock.h"
void DescribeIovNt(const struct NtIovec *iov, uint32_t iovlen, ssize_t rem) {
int i;
if ((!IsAsan() && kisdangerous(iov)) ||
(IsAsan() && !__asan_is_valid(iov, iovlen * sizeof(struct NtIovec)))) {
kprintf("%p", iov);
return;
}
kprintf("{");
for (i = 0; rem && i < MIN(5, iovlen); ++i) {
kprintf("%s{%#.*hhs%s, %'zu}", i ? ", " : "",
MAX(0, MIN(40, MIN(rem, iov[i].len))), iov[i].buf,
MAX(0, MIN(40, MIN(rem, iov[i].len))) < iov[i].len ? "..." : "",
iov[i].len);
rem -= iov[i].len;
}
kprintf("%s}", iovlen > 5 ? "..." : "");
}

6
libc/intrin/describemapflags.greg.c → libc/intrin/describemapflags.c
View file

@ -22,8 +22,7 @@
#include "libc/sysv/consts/map.h"
#include "libc/sysv/consts/prot.h"
const char *DescribeMapFlags(int x) {
_Alignas(char) static char mapflags[256];
const char *(DescribeMapFlags)(char buf[64], int x) {
const struct DescribeFlags kMapFlags[] = {
{MAP_STACK, "STACK"}, // order matters
{MAP_PRIVATE, "PRIVATE"}, //
@ -39,6 +38,5 @@ const char *DescribeMapFlags(int x) {
{MAP_NONBLOCK, "NONBLOCK"}, //
{MAP_POPULATE, "POPULATE"}, //
};
return DescribeFlags(mapflags, sizeof(mapflags), kMapFlags,
ARRAYLEN(kMapFlags), "MAP_", x);
return DescribeFlags(buf, 64, kMapFlags, ARRAYLEN(kMapFlags), "MAP_", x);
}

9
libc/intrin/describemapping.greg.c → libc/intrin/describemapping.c
View file

@ -16,11 +16,12 @@
│ TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR │
│ PERFORMANCE OF THIS SOFTWARE. │
╚─────────────────────────────────────────────────────────────────────────────*/
#include "libc/intrin/describeflags.internal.h"
#include "libc/runtime/memtrack.internal.h"
#include "libc/sysv/consts/map.h"
#include "libc/sysv/consts/prot.h"
static noasan char DescribeMapType(int flags) {
static char DescribeMapType(int flags) {
switch (flags & MAP_TYPE) {
case MAP_FILE:
return 'f';
@ -35,7 +36,7 @@ static noasan char DescribeMapType(int flags) {
}
}
noasan char *DescribeProt(int prot, char p[hasatleast 4]) {
char *DescribeProt(char p[4], int prot) {
p[0] = (prot & PROT_READ) ? 'r' : '-';
p[1] = (prot & PROT_WRITE) ? 'w' : '-';
p[2] = (prot & PROT_EXEC) ? 'x' : '-';
@ -43,9 +44,9 @@ noasan char *DescribeProt(int prot, char p[hasatleast 4]) {
return p;
}
noasan char *DescribeMapping(int prot, int flags, char p[hasatleast 8]) {
const char *(DescribeMapping)(char p[8], int prot, int flags) {
/* asan runtime depends on this function */
DescribeProt(prot, p);
DescribeProt(p, prot);
p[3] = DescribeMapType(flags);
p[4] = (flags & MAP_ANONYMOUS) ? 'a' : '-';
p[5] = (flags & MAP_GROWSDOWN) ? 'G' : '-';

8
libc/intrin/describentconsolemodeinputflags.greg.c → libc/intrin/describentconsolemodeinputflags.c
View file

@ -33,9 +33,7 @@ static const struct DescribeFlags kConsoleModeInputFlags[] = {
{kNtEnableVirtualTerminalInput, "VirtualTerminalInput"}, //
};
const char *DescribeNtConsoleModeInputFlags(uint32_t x) {
_Alignas(char) static char consolemodeinputflags[256];
return DescribeFlags(consolemodeinputflags, sizeof(consolemodeinputflags),
kConsoleModeInputFlags, ARRAYLEN(kConsoleModeInputFlags),
"kNtEnable", x);
const char *(DescribeNtConsoleInFlags)(char buf[256], uint32_t x) {
return DescribeFlags(buf, 256, kConsoleModeInputFlags,
ARRAYLEN(kConsoleModeInputFlags), "kNtEnable", x);
}

6
libc/intrin/describentconsolemodeoutputflags.greg.c → libc/intrin/describentconsolemodeoutputflags.c
View file

@ -28,9 +28,7 @@ static const struct DescribeFlags kConsoleModeOutputFlags[] = {
{kNtEnableLvbGridWorldwide, "EnableLvbGridWorldwide"}, //
};
const char *DescribeNtConsoleModeOutputFlags(uint32_t x) {
_Alignas(char) static char consolemodeoutputflags[128];
return DescribeFlags(consolemodeoutputflags, sizeof(consolemodeoutputflags),
kConsoleModeOutputFlags,
const char *(DescribeNtConsoleOutFlags)(char buf[128], uint32_t x) {
return DescribeFlags(buf, 128, kConsoleModeOutputFlags,
ARRAYLEN(kConsoleModeOutputFlags), "kNt", x);
}

0
libc/intrin/describentcreationdisposition.greg.c → libc/intrin/describentcreationdisposition.c
View file

7
libc/intrin/describentfileaccessflags.greg.c → libc/intrin/describentfileaccessflags.c
View file

@ -63,8 +63,7 @@ static const struct DescribeFlags kFileAccessflags[] = {
{kNtTokenAdjustSessionid, "TokenAdjustSessionid"}, //
};
const char *DescribeNtFileAccessFlags(uint32_t x) {
_Alignas(char) static char ntfileaccessflags[512];
return DescribeFlags(ntfileaccessflags, sizeof(ntfileaccessflags),
kFileAccessflags, ARRAYLEN(kFileAccessflags), "kNt", x);
const char *(DescribeNtFileAccessFlags)(char buf[512], uint32_t x) {
return DescribeFlags(buf, 512, kFileAccessflags, ARRAYLEN(kFileAccessflags),
"kNt", x);
}

7
libc/intrin/describentfileflagsandattributes.greg.c → libc/intrin/describentfileflagattr.c
View file

@ -51,9 +51,8 @@ static const struct DescribeFlags kFileFlags[] = {
{kNtFileFlagFirstPipeInstance, "FlagFirstPipeInstance"}, //
};
const char *DescribeNtFileFlagsAndAttributes(uint32_t x) {
_Alignas(char) static char ntfileflags[256];
const char *(DescribeNtFileFlagAttr)(char buf[256], uint32_t x) {
if (x == -1u) return "-1u";
return DescribeFlags(ntfileflags, sizeof(ntfileflags), kFileFlags,
ARRAYLEN(kFileFlags), "kNtFile", x);
return DescribeFlags(buf, 256, kFileFlags, ARRAYLEN(kFileFlags), "kNtFile",
x);
}

7
libc/intrin/describentfilemapflags.greg.c → libc/intrin/describentfilemapflags.c
View file

@ -30,8 +30,7 @@ static const struct DescribeFlags kFileMapFlags[] = {
{kNtFileMapLargePages, "LargePages"}, //
};
const char *DescribeNtFileMapFlags(uint32_t x) {
_Alignas(char) static char filemapflags[64];
return DescribeFlags(filemapflags, sizeof(filemapflags), kFileMapFlags,
ARRAYLEN(kFileMapFlags), "kNtFileMap", x);
const char *(DescribeNtFileMapFlags)(char buf[64], uint32_t x) {
return DescribeFlags(buf, 64, kFileMapFlags, ARRAYLEN(kFileMapFlags),
"kNtFileMap", x);
}

6
libc/intrin/describentfileshareflags.greg.c → libc/intrin/describentfileshareflags.c
View file

@ -26,9 +26,7 @@ static const struct DescribeFlags kFileShareflags[] = {
{kNtFileShareDelete, "Delete"}, //
};
const char *DescribeNtFileShareFlags(uint32_t x) {
_Alignas(char) static char ntfileshareflags[64];
return DescribeFlags(ntfileshareflags, sizeof(ntfileshareflags),
kFileShareflags, ARRAYLEN(kFileShareflags),
const char *(DescribeNtFileShareFlags)(char buf[64], uint32_t x) {
return DescribeFlags(buf, 64, kFileShareflags, ARRAYLEN(kFileShareflags),
"kNtFileShare", x);
}

7
libc/intrin/describentfiletypeflags.greg.c → libc/intrin/describentfiletypeflags.c
View file

@ -28,8 +28,7 @@ static const struct DescribeFlags kFiletypeFlags[] = {
{kNtFileTypeChar, "Char"}, //
};
const char *DescribeNtFiletypeFlags(uint32_t x) {
_Alignas(char) static char filetypeflags[64];
return DescribeFlags(filetypeflags, sizeof(filetypeflags), kFiletypeFlags,
ARRAYLEN(kFiletypeFlags), "kNtFileType", x);
const char *(DescribeNtFiletypeFlags)(char buf[64], uint32_t x) {
return DescribeFlags(buf, 64, kFiletypeFlags, ARRAYLEN(kFiletypeFlags),
"kNtFileType", x);
}

8
libc/intrin/describentmovefileflags.greg.c → libc/intrin/describentmovfileinpflags.c
View file

@ -29,9 +29,7 @@ static const struct DescribeFlags kMoveFileInputFlags[] = {
{kNtMovefileFailIfNotTrackable, "FailIfNotTrackable"}, //
};
const char *DescribeNtMoveFileInputFlags(uint32_t x) {
_Alignas(char) static char movefileflags[256];
return DescribeFlags(movefileflags, sizeof(movefileflags),
kMoveFileInputFlags, ARRAYLEN(kMoveFileInputFlags),
"kNtMovefile", x);
const char *(DescribeNtMovFileInpFlags)(char buf[256], uint32_t x) {
return DescribeFlags(buf, 256, kMoveFileInputFlags,
ARRAYLEN(kMoveFileInputFlags), "kNtMovefile", x);
}

6
libc/intrin/describentpageflags.greg.c → libc/intrin/describentpageflags.c
View file

@ -41,8 +41,6 @@ static const struct DescribeFlags kPageFlags[] = {
{kNtSecWritecombine, "SecWritecombine"}, //
};
const char *DescribeNtPageFlags(uint32_t x) {
_Alignas(char) static char pageflags[64];
return DescribeFlags(pageflags, sizeof(pageflags), kPageFlags,
ARRAYLEN(kPageFlags), "kNt", x);
const char *(DescribeNtPageFlags)(char buf[64], uint32_t x) {
return DescribeFlags(buf, 64, kPageFlags, ARRAYLEN(kPageFlags), "kNt", x);
}

7
libc/intrin/describentpipemodeflags.greg.c → libc/intrin/describentpipemodeflags.c
View file

@ -32,8 +32,7 @@ static const struct DescribeFlags kPipeModeFlags[] = {
//{kNtPipeTypeByte, "TypeByte"}, // 0x00000000
};
const char *DescribeNtPipeModeFlags(uint32_t x) {
_Alignas(char) static char pipemodeflags[64];
return DescribeFlags(pipemodeflags, sizeof(pipemodeflags), kPipeModeFlags,
ARRAYLEN(kPipeModeFlags), "kNtPipe", x);
const char *(DescribeNtPipeModeFlags)(char buf[64], uint32_t x) {
return DescribeFlags(buf, 64, kPipeModeFlags, ARRAYLEN(kPipeModeFlags),
"kNtPipe", x);
}

7
libc/intrin/describentpipeopenflags.greg.c → libc/intrin/describentpipeopenflags.c
View file

@ -27,8 +27,7 @@ static const struct DescribeFlags kPipeOpenFlags[] = {
{kNtPipeAccessInbound, "Inbound"}, // 0x00000001
};
const char *DescribeNtPipeOpenFlags(uint32_t x) {
_Alignas(char) static char pipeopenflags[64];
return DescribeFlags(pipeopenflags, sizeof(pipeopenflags), kPipeOpenFlags,
ARRAYLEN(kPipeOpenFlags), "kNtPipeAccess", x);
const char *(DescribeNtPipeOpenFlags)(char buf[64], uint32_t x) {
return DescribeFlags(buf, 64, kPipeOpenFlags, ARRAYLEN(kPipeOpenFlags),
"kNtPipeAccess", x);
}

8
libc/intrin/describentprocessaccessflags.greg.c → libc/intrin/describentprocaccessflags.c
View file

@ -37,9 +37,7 @@ static const struct DescribeFlags kProcessAccessflags[] = {
{kNtProcessSynchronize, "Synchronize"}, //
};
const char *DescribeNtProcessAccessFlags(uint32_t x) {
_Alignas(char) static char ntprocessaccessflags[256];
return DescribeFlags(ntprocessaccessflags, sizeof(ntprocessaccessflags),
kProcessAccessflags, ARRAYLEN(kProcessAccessflags),
"kNtProcess", x);
const char *(DescribeNtProcAccessFlags)(char buf[256], uint32_t x) {
return DescribeFlags(buf, 256, kProcessAccessflags,
ARRAYLEN(kProcessAccessflags), "kNtProcess", x);
}

0
libc/intrin/describentsecurityattributes.greg.c → libc/intrin/describentsecurityattributes.c
View file

7
libc/intrin/describentstartflags.greg.c → libc/intrin/describentstartflags.c
View file

@ -38,8 +38,7 @@ static const struct DescribeFlags kNtStartFlags[] = {
{kNtStartfUntrustedsource, "Untrustedsource"}, //
};
const char *DescribeNtStartFlags(uint32_t x) {
_Alignas(char) static char startflags[128];
return DescribeFlags(startflags, sizeof(startflags), kNtStartFlags,
ARRAYLEN(kNtStartFlags), "kNtStartf", x);
const char *(DescribeNtStartFlags)(char buf[128], uint32_t x) {
return DescribeFlags(buf, 128, kNtStartFlags, ARRAYLEN(kNtStartFlags),
"kNtStartf", x);
}

8
libc/intrin/describentsymboliclinkflags.greg.c → libc/intrin/describentsymlinkflags.c
View file

@ -25,9 +25,7 @@ static const struct DescribeFlags kSymbolicLinkflags[] = {
{kNtSymbolicLinkFlagAllowUnprivilegedCreate, "AllowUnprivilegedCreate"}, //
};
const char *DescribeNtSymbolicLinkFlags(uint32_t x) {
_Alignas(char) static char ntsymboliclinkflags[64];
return DescribeFlags(ntsymboliclinkflags, sizeof(ntsymboliclinkflags),
kSymbolicLinkflags, ARRAYLEN(kSymbolicLinkflags),
"kNtSymbolicLinkFlag", x);
const char *(DescribeNtSymlinkFlags)(char buf[64], uint32_t x) {
return DescribeFlags(buf, 64, kSymbolicLinkflags,
ARRAYLEN(kSymbolicLinkflags), "kNtSymbolicLinkFlag", x);
}

20
libc/intrin/describeopenflags.greg.c → libc/intrin/describeopenflags.c
View file

@ -16,26 +16,32 @@
│ TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR │
│ PERFORMANCE OF THIS SOFTWARE. │
╚─────────────────────────────────────────────────────────────────────────────*/
#include "libc/assert.h"
#include "libc/fmt/itoa.h"
#include "libc/fmt/magnumstrs.internal.h"
#include "libc/intrin/describeflags.internal.h"
#include "libc/mem/alloca.h"
#include "libc/macros.internal.h"
#include "libc/sysv/consts/sol.h"
#define N (PAGESIZE / 2 / sizeof(struct DescribeFlags))
/**
* Describes clock_gettime() clock argument.
*/
char *DescribeOpenFlags(int x) {
const char *(DescribeOpenFlags)(char buf[128], int x) {
char *s;
int i, n;
struct DescribeFlags *d;
_Alignas(char) static char openflags[128];
struct DescribeFlags d[N];
// TODO(jart): unify DescribeFlags and MagnumStr data structures
for (n = 0; kOpenFlags[n].x != MAGNUM_TERMINATOR;) ++n;
d = alloca(n * sizeof(struct DescribeFlags));
for (n = 0; kOpenFlags[n].x != MAGNUM_TERMINATOR; ++n) {
if (n == N) {
assert(!"too many open flags");
break;
}
}
for (i = 0; i < n; ++i) {
d[i].flag = MAGNUM_NUMBER(kOpenFlags, i);
d[i].name = MAGNUM_STRING(kOpenFlags, i);
}
return DescribeFlags(openflags, sizeof(openflags), d, n, "O_", x);
return DescribeFlags(buf, 128, d, n, "O_", x);
}

7
libc/intrin/describepersonalityflags.c
View file

@ -36,8 +36,7 @@ static const struct DescribeFlags kPersonalityFlags[] = {
{UNAME26, "UNAME26"}, //
};
const char *DescribePersonalityFlags(int x) {
_Alignas(char) static char personalityflags[128];
return DescribeFlags(personalityflags, sizeof(personalityflags),
kPersonalityFlags, ARRAYLEN(kPersonalityFlags), "", x);
const char *(DescribePersonalityFlags)(char buf[128], int x) {
return DescribeFlags(buf, 128, kPersonalityFlags, ARRAYLEN(kPersonalityFlags),
"", x);
}

4
libc/intrin/describepollflags.greg.c → libc/intrin/describepollflags.c
View file

@ -21,7 +21,7 @@
#include "libc/nt/enum/filemapflags.h"
#include "libc/sysv/consts/poll.h"
const char *DescribePollFlags(char *buf, size_t size, int x) {
const char *(DescribePollFlags)(char buf[64], int x) {
const struct DescribeFlags kPollFlags[] = {
{POLLIN, "IN"}, // order matters
{POLLOUT, "OUT"}, // order matters
@ -35,5 +35,5 @@ const char *DescribePollFlags(char *buf, size_t size, int x) {
{POLLWRBAND, "WRBAND"}, //
{POLLWRNORM, "WRNORM"}, //
};
return DescribeFlags(buf, size, kPollFlags, ARRAYLEN(kPollFlags), "POLL", x);
return DescribeFlags(buf, 64, kPollFlags, ARRAYLEN(kPollFlags), "POLL", x);
}

33
libc/intrin/describeprctloperation.c Normal file
View file

@ -0,0 +1,33 @@
/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:2;tab-width:8;coding:utf-8 -*-│
│vi: set net ft=c ts=2 sts=2 sw=2 fenc=utf-8 :vi│
╞══════════════════════════════════════════════════════════════════════════════╡
│ Copyright 2022 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 "libc/intrin/describeflags.internal.h"
#include "libc/sysv/consts/pr.h"
const char *DescribePrctlOperation(int x) {
switch (x) {
case PR_SET_NO_NEW_PRIVS:
return "PR_SET_NO_NEW_PRIVS";
case PR_SET_SECCOMP:
return "PR_SET_SECCOMP";
case PR_GET_SECCOMP:
return "PR_GET_SECCOMP";
default:
return "PRCTL_???";
}
}

6
libc/intrin/describeprotflags.greg.c → libc/intrin/describeprotflags.c
View file

@ -26,8 +26,6 @@ static const struct DescribeFlags kProtFlags[] = {
{PROT_EXEC, "EXEC"}, //
};
const char *DescribeProtFlags(int x) {
_Alignas(char) static char protflags[64];
return DescribeFlags(protflags, sizeof(protflags), kProtFlags,
ARRAYLEN(kProtFlags), "PROT_", x);
const char *(DescribeProtFlags)(char buf[48], int x) {
return DescribeFlags(buf, 48, kProtFlags, ARRAYLEN(kProtFlags), "PROT_", x);
}

7
libc/intrin/describeremapflags.greg.c → libc/intrin/describeremapflags.c
View file

@ -25,8 +25,7 @@ static const struct DescribeFlags kRemapFlags[] = {
{MREMAP_FIXED, "FIXED"}, //
};
const char *DescribeRemapFlags(int x) {
_Alignas(char) static char remapflags[64];
return DescribeFlags(remapflags, sizeof(remapflags), kRemapFlags,
ARRAYLEN(kRemapFlags), "MREMAP_", x);
const char *(DescribeRemapFlags)(char buf[48], int x) {
return DescribeFlags(buf, 48, kRemapFlags, ARRAYLEN(kRemapFlags), "MREMAP_",
x);
}

7
libc/intrin/describerlimit.greg.c → libc/intrin/describerlimit.c
View file

@ -21,15 +21,14 @@
#include "libc/intrin/asan.internal.h"
#include "libc/intrin/kprintf.h"
const char *DescribeRlimit(char *buf, size_t bufsize, int rc,
const struct rlimit *rlim) {
const char *DescribeRlimit(char buf[64], int rc, const struct rlimit *rlim) {
if (rc == -1) return "n/a";
if (!rlim) return "NULL";
if ((!IsAsan() && kisdangerous(rlim)) ||
(IsAsan() && !__asan_is_valid(rlim, sizeof(*rlim)))) {
ksnprintf(buf, sizeof(buf), "%p", rlim);
ksnprintf(buf, 64, "%p", rlim);
} else {
ksnprintf(buf, bufsize, "{%'ld, %'ld}", rlim->rlim_cur, rlim->rlim_max);
ksnprintf(buf, 64, "{%'ld, %'ld}", rlim->rlim_cur, rlim->rlim_max);
}
return buf;
}

3
libc/intrin/describerlimit_name.greg.c → libc/intrin/describerlimit_name.c
View file

@ -20,8 +20,7 @@
#include "libc/fmt/itoa.h"
#include "libc/sysv/consts/rlimit.h"
const char *DescribeRlimitName(int resource) {
static char buf[12];
const char *(DescribeRlimitName)(char buf[12], int resource) {
if (resource == 127) return "n/a";
if (resource == RLIMIT_AS) return "RLIMIT_AS";
if (resource == RLIMIT_CPU) return "RLIMIT_CPU";

35
libc/intrin/describeseccompoperation.c Normal file
View file

@ -0,0 +1,35 @@
/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:2;tab-width:8;coding:utf-8 -*-│
│vi: set net ft=c ts=2 sts=2 sw=2 fenc=utf-8 :vi│
╞══════════════════════════════════════════════════════════════════════════════╡
│ Copyright 2022 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 "libc/calls/struct/seccomp.h"
#include "libc/intrin/describeflags.internal.h"
const char *DescribeSeccompOperation(int x) {
switch (x) {
case SECCOMP_SET_MODE_STRICT:
return "SECCOMP_SET_MODE_STRICT";
case SECCOMP_SET_MODE_FILTER:
return "SECCOMP_SET_MODE_FILTER";
case SECCOMP_GET_ACTION_AVAIL:
return "SECCOMP_GET_ACTION_AVAIL";
case SECCOMP_GET_NOTIF_SIZES:
return "SECCOMP_GET_NOTIF_SIZES";
default:
return "SECCOMP_???";
}
}

12
libc/calls/describesigaction.greg.c → libc/intrin/describesigaction.c
View file

@ -21,18 +21,16 @@
#include "libc/intrin/describeflags.internal.h"
#include "libc/intrin/kprintf.h"
const char *DescribeSigaction(char *buf, size_t bufsize, int rc,
const struct sigaction *sa) {
char maskbuf[64];
const char *(DescribeSigaction)(char buf[128], int rc,
const struct sigaction *sa) {
if (rc == -1) return "n/a";
if (!sa) return "NULL";
if ((!IsAsan() && kisdangerous(sa)) ||
(IsAsan() && !__asan_is_valid(sa, sizeof(*sa)))) {
ksnprintf(buf, sizeof(buf), "%p", sa);
ksnprintf(buf, 128, "%p", sa);
} else {
ksnprintf(buf, bufsize, "{.sa_handler=%p, .sa_flags=%#lx, .sa_mask=%s}",
sa->sa_handler, sa->sa_flags,
DescribeSigset(maskbuf, sizeof(maskbuf), rc, &sa->sa_mask));
ksnprintf(buf, 128, "{.sa_handler=%p, .sa_flags=%#lx, .sa_mask=%s}",
sa->sa_handler, sa->sa_flags, DescribeSigset(rc, &sa->sa_mask));
}
return buf;
}

10
libc/calls/describesigaltstack.greg.c → libc/intrin/describesigaltstack.c
View file

@ -22,16 +22,16 @@
#include "libc/intrin/describeflags.internal.h"
#include "libc/intrin/kprintf.h"
const char *DescribeSigaltstk(char *buf, size_t bufsize, int rc,
const struct sigaltstack *ss) {
const char *(DescribeSigaltstk)(char buf[128], int rc,
const struct sigaltstack *ss) {
if (rc == -1) return "n/a";
if (!ss) return "NULL";
if ((!IsAsan() && kisdangerous(ss)) ||
(IsAsan() && !__asan_is_valid(ss, sizeof(*ss)))) {
ksnprintf(buf, sizeof(buf), "%p", ss);
ksnprintf(buf, 128, "%p", ss);
} else {
ksnprintf(buf, bufsize, "{.ss_sp=%p, .ss_flags=%#lx, .ss_size=%'zu}",
ss->ss_sp, ss->ss_flags, ss->ss_size);
ksnprintf(buf, 128, "{.ss_sp=%p, .ss_flags=%#lx, .ss_size=%'zu}", ss->ss_sp,
ss->ss_flags, ss->ss_size);
}
return buf;
}

7
libc/calls/describesigset.greg.c → libc/intrin/describesigset.c
View file

@ -23,8 +23,7 @@
#include "libc/intrin/kprintf.h"
#include "libc/str/str.h"
const char *DescribeSigset(char *buf, size_t bufsize, int rc,
const sigset_t *ss) {
const char *(DescribeSigset)(char buf[64], int rc, const sigset_t *ss) {
bool gotsome;
int i, n, sig;
sigset_t sigset;
@ -33,12 +32,12 @@ const char *DescribeSigset(char *buf, size_t bufsize, int rc,
if (!ss) return "NULL";
if ((!IsAsan() && kisdangerous(ss)) ||
(IsAsan() && !__asan_is_valid(ss, sizeof(*ss)))) {
ksnprintf(buf, sizeof(buf), "%p", ss);
ksnprintf(buf, 64, "%p", ss);
return buf;
}
i = 0;
n = bufsize;
n = 64;
sigset = *ss;
gotsome = false;
if (popcnt(sigset.__bits[0]) + popcnt(sigset.__bits[1]) > 64) {

29
libc/intrin/describesocketfamily.c Normal file
View file

@ -0,0 +1,29 @@
/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:2;tab-width:8;coding:utf-8 -*-│
│vi: set net ft=c ts=2 sts=2 sw=2 fenc=utf-8 :vi│
╞══════════════════════════════════════════════════════════════════════════════╡
│ Copyright 2022 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 "libc/fmt/itoa.h"
#include "libc/intrin/describeflags.internal.h"
#include "libc/sysv/consts/af.h"
const char *(DescribeSocketFamily)(char buf[12], int family) {
if (family == AF_UNIX) return "AF_UNIX";
if (family == AF_INET) return "AF_INET";
if (family == AF_INET6) return "AF_INET6";
FormatInt32(buf, family);
return buf;
}

32
libc/intrin/describesocketprotocol.c Normal file
View file

@ -0,0 +1,32 @@
/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:2;tab-width:8;coding:utf-8 -*-│
│vi: set net ft=c ts=2 sts=2 sw=2 fenc=utf-8 :vi│
╞══════════════════════════════════════════════════════════════════════════════╡
│ Copyright 2022 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 "libc/fmt/itoa.h"
#include "libc/intrin/describeflags.internal.h"
#include "libc/sysv/consts/ipproto.h"
const char *(DescribeSocketProtocol)(char buf[12], int family) {
if (family == IPPROTO_IP) return "IPPROTO_IP";
if (family == IPPROTO_ICMP) return "IPPROTO_ICMP";
if (family == IPPROTO_TCP) return "IPPROTO_TCP";
if (family == IPPROTO_UDP) return "IPPROTO_UDP";
if (family == IPPROTO_RAW) return "IPPROTO_RAW";
if (family == IPPROTO_IPV6) return "IPPROTO_IPv6";
FormatInt32(buf, family);
return buf;
}

54
libc/intrin/describesockettype.c Normal file
View file

@ -0,0 +1,54 @@
/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:2;tab-width:8;coding:utf-8 -*-│
│vi: set net ft=c ts=2 sts=2 sw=2 fenc=utf-8 :vi│
╞══════════════════════════════════════════════════════════════════════════════╡
│ Copyright 2022 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 "libc/fmt/itoa.h"
#include "libc/intrin/describeflags.internal.h"
#include "libc/str/str.h"
#include "libc/sysv/consts/sock.h"
static char *StpCpy(char *d, const char *s) {
size_t i;
for (i = 0;; ++i) {
if (!(d[i] = s[i])) {
return d + i;
}
}
}
const char *(DescribeSocketType)(char buf[64], int type) {
int x;
char *p;
p = buf;
x = type & ~(SOCK_CLOEXEC | SOCK_NONBLOCK);
if (x == SOCK_STREAM) {
p = StpCpy(p, "SOCK_STREAM");
} else if (x == SOCK_DGRAM) {
p = StpCpy(p, "SOCK_DGRAM");
} else if (x == SOCK_RAW) {
p = StpCpy(p, "SOCK_RAW");
} else if (x == SOCK_RDM) {
p = StpCpy(p, "SOCK_RDM");
} else if (x == SOCK_SEQPACKET) {
p = StpCpy(p, "SOCK_SEQPACKET");
} else {
p = FormatInt32(p, x);
}
if (type & SOCK_CLOEXEC) p = StpCpy(p, "|SOCK_CLOEXEC");
if (type & SOCK_NONBLOCK) p = StpCpy(p, "|SOCK_NONBLOCK");
return buf;
}

4
libc/sock/describesocklevel.greg.c → libc/intrin/describesocklevel.c
View file

@ -17,13 +17,13 @@
│ PERFORMANCE OF THIS SOFTWARE. │
╚─────────────────────────────────────────────────────────────────────────────*/
#include "libc/fmt/itoa.h"
#include "libc/intrin/describeflags.internal.h"
#include "libc/sysv/consts/sol.h"
/**
* Describes setsockopt() level arguments.
*/
char *DescribeSockLevel(int x) {
static char buf[12];
const char *(DescribeSockLevel)(char buf[12], int x) {
if (x == SOL_IP) return "SOL_IP";
if (x == SOL_TCP) return "SOL_TCP";
if (x == SOL_UDP) return "SOL_UDP";

44
libc/sock/describesockoptname.greg.c → libc/intrin/describesockoptname.c
View file

@ -18,34 +18,56 @@
╚─────────────────────────────────────────────────────────────────────────────*/
#include "libc/fmt/itoa.h"
#include "libc/fmt/magnumstrs.internal.h"
#include "libc/intrin/describeflags.internal.h"
#include "libc/str/str.h"
#include "libc/sysv/consts/sol.h"
static inline char *StpCpy(char *d, const char *s) {
size_t i;
for (i = 0;; ++i) {
if (!(d[i] = s[i])) {
return d + i;
}
}
}
/**
* Describes setsockopt() optname arguments.
*/
char *DescribeSockOptname(int l, int x) {
const char *(DescribeSockOptname)(char buf[32], int l, int x) {
int i;
char *ps, *s;
const struct MagnumStr *ms = 0;
_Alignas(char) static char buf[32];
char *s, *p;
const struct MagnumStr *ms;
p = buf;
if (x) {
if (l == SOL_SOCKET) {
ps = "SO_";
*p++ = 'S';
*p++ = 'O';
*p++ = '_';
*p = 0;
ms = kSockOptnames;
} else if (l == SOL_TCP) {
ps = "TCP_";
*p++ = 'T';
*p++ = 'C';
*p++ = 'P';
*p++ = '_';
ms = kTcpOptnames;
} else if (l == SOL_IP) {
ps = "IP_";
*p++ = 'I';
*p++ = 'P';
*p++ = '_';
*p = 0;
ms = kIpOptnames;
} else {
ms = 0;
}
} else {
ms = 0;
}
if (ms && (s = GetMagnumStr(ms, x))) {
stpcpy(stpcpy(buf, ps), s);
return buf;
StpCpy(p, s);
} else {
FormatInt32(buf, x);
return buf;
FormatInt32(p, x);
}
return buf;
}

7
libc/intrin/describestat.greg.c → libc/intrin/describestat.c
View file

@ -21,20 +21,19 @@
#include "libc/intrin/describeflags.internal.h"
#include "libc/intrin/kprintf.h"
const char *DescribeStat(int rc, const struct stat *st) {
_Alignas(char) static char buf[300];
const char *(DescribeStat)(char buf[300], int rc, const struct stat *st) {
int i, n;
if (rc == -1) return "n/a";
if (!st) return "NULL";
if ((!IsAsan() && kisdangerous(st)) ||
(IsAsan() && !__asan_is_valid(st, sizeof(*st)))) {
ksnprintf(buf, sizeof(buf), "%p", st);
ksnprintf(buf, 300, "%p", st);
return buf;
}
i = 0;
n = sizeof(buf);
n = 300;
i += ksnprintf(buf + i, n - i, "{.st_%s=%'ld", "size", st->st_size);

8
libc/intrin/describetimespec.greg.c → libc/intrin/describetimespec.c
View file

@ -21,15 +21,15 @@
#include "libc/intrin/describeflags.internal.h"
#include "libc/intrin/kprintf.h"
const char *DescribeTimespec(char *buf, size_t bufsize, int rc,
const struct timespec *ts) {
const char *(DescribeTimespec)(char buf[45], int rc,
const struct timespec *ts) {
if (rc == -1) return "n/a";
if (!ts) return "NULL";
if ((!IsAsan() && kisdangerous(ts)) ||
(IsAsan() && !__asan_is_valid(ts, sizeof(*ts)))) {
ksnprintf(buf, bufsize, "%p", ts);
ksnprintf(buf, 45, "%p", ts);
} else {
ksnprintf(buf, bufsize, "{%ld, %ld}", ts->tv_sec, ts->tv_nsec);
ksnprintf(buf, 45, "{%ld, %ld}", ts->tv_sec, ts->tv_nsec);
}
return buf;
}

0
libc/intrin/deviceiocontrol.greg.c → libc/intrin/deviceiocontrol.c
View file

0
libc/intrin/dos2errno.greg.c → libc/intrin/dos2errno.c
View file

1
libc/intrin/exit1.greg.c
View file

@ -18,6 +18,7 @@
╚─────────────────────────────────────────────────────────────────────────────*/
#include "libc/calls/strace.internal.h"
#include "libc/dce.h"
#include "libc/intrin/kprintf.h"
#include "libc/nt/thread.h"
#include "libc/runtime/runtime.h"
#include "libc/sysv/consts/nr.h"

17
libc/intrin/findfirstfile.c
View file

@ -35,15 +35,14 @@ textwindows int64_t FindFirstFile(const char16_t *lpFileName,
int64_t hFindFile;
hFindFile = __imp_FindFirstFileW(lpFileName, out_lpFindFileData);
if (hFindFile != -1) {
NTTRACE(
"FindFirstFile(%#hs, [{"
".cFileName=%#hs, "
".dwFileAttributes=%s, "
".dwFileType=%s"
"}]) → %ld% m",
lpFileName, out_lpFindFileData->cFileName,
DescribeNtFileFlagsAndAttributes(out_lpFindFileData->dwFileAttributes),
DescribeNtFiletypeFlags(out_lpFindFileData->dwFileType), hFindFile);
NTTRACE("FindFirstFile(%#hs, [{"
".cFileName=%#hs, "
".dwFileAttributes=%s, "
".dwFileType=%s"
"}]) → %ld% m",
lpFileName, out_lpFindFileData->cFileName,
DescribeNtFileFlagAttr(out_lpFindFileData->dwFileAttributes),
DescribeNtFiletypeFlags(out_lpFindFileData->dwFileType), hFindFile);
} else {
__winerr();
NTTRACE("FindFirstFile(%#hs, [n/a]) → %ld% m", lpFileName, hFindFile);

17
libc/intrin/findnextfile.c
View file

@ -37,15 +37,14 @@ textwindows bool32 FindNextFile(int64_t hFindFile,
bool32 ok;
ok = __imp_FindNextFileW(hFindFile, out_lpFindFileData);
if (ok) {
NTTRACE(
"FindNextFile(%ld, [{"
".cFileName=%#hs, "
".dwFileAttributes=%s, "
".dwFileType=%s"
"}]) → %hhhd% m",
hFindFile, out_lpFindFileData->cFileName,
DescribeNtFileFlagsAndAttributes(out_lpFindFileData->dwFileAttributes),
DescribeNtFiletypeFlags(out_lpFindFileData->dwFileType), ok);
NTTRACE("FindNextFile(%ld, [{"
".cFileName=%#hs, "
".dwFileAttributes=%s, "
".dwFileType=%s"
"}]) → %hhhd% m",
hFindFile, out_lpFindFileData->cFileName,
DescribeNtFileFlagAttr(out_lpFindFileData->dwFileAttributes),
DescribeNtFiletypeFlags(out_lpFindFileData->dwFileType), ok);
} else {
if (GetLastError() != kNtErrorNoMoreFiles) __winerr();
NTTRACE("FindNextFile(%ld) → %hhhd% m", hFindFile, ok);

28
libc/intrin/futex.S Normal file
View file

@ -0,0 +1,28 @@
/*-*- mode:unix-assembly; indent-tabs-mode:t; tab-width:8; coding:utf-8 -*-│
│vi: set et ft=asm ts=8 tw=8 fenc=utf-8 :vi│
╞══════════════════════════════════════════════════════════════════════════════╡
│ Copyright 2022 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 "libc/sysv/consts/nr.h"
#include "libc/macros.internal.h"
_futex: mov __NR_futex,%eax
clc
syscall
jnc 1f
neg %eax
1: ret
.endfn _futex,globl,hidden

5
libc/intrin/futex.internal.h
View file

@ -4,8 +4,9 @@
#if !(__ASSEMBLER__ + __LINKER__ + 0)
COSMOPOLITAN_C_START_
int _futex_wait(void *, int, struct timespec *);
int _futex_wake(void *, int);
int _futex(void *, int, int, struct timespec *, int *) hidden;
int _futex_wait(void *, int, struct timespec *) hidden;
int _futex_wake(void *, int) hidden;
COSMOPOLITAN_C_END_
#endif /* !(__ASSEMBLER__ + __LINKER__ + 0) */

32
libc/intrin/futex_wait.c
View file

@ -16,29 +16,29 @@
│ TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR │
│ PERFORMANCE OF THIS SOFTWARE. │
╚─────────────────────────────────────────────────────────────────────────────*/
#include "libc/bits/asmflag.h"
#include "libc/calls/strace.internal.h"
#include "libc/calls/struct/timespec.h"
#include "libc/fmt/itoa.h"
#include "libc/intrin/describeflags.internal.h"
#include "libc/intrin/futex.internal.h"
#include "libc/mem/alloca.h"
#include "libc/str/str.h"
#include "libc/sysv/consts/futex.h"
#include "libc/sysv/consts/nr.h"
privileged int _futex_wait(void *addr, int expect, struct timespec *timeout) {
static const char *DescribeFutexWaitResult(char buf[12], int ax) {
const char *s;
if (ax && ((s = strerrno(ax)) || (s = strerrno(-ax)))) {
return s;
} else {
FormatInt32(buf, ax);
return buf;
}
}
int _futex_wait(void *addr, int expect, struct timespec *timeout) {
int ax;
bool cf;
char buf[45];
asm volatile(CFLAG_ASM("mov\t%6,%%r10\n\t"
"clc\n\t"
"syscall")
: CFLAG_CONSTRAINT(cf), "=a"(ax)
: "1"(__NR_futex), "D"(addr), "S"(FUTEX_WAIT), "d"(expect),
"g"(timeout)
: "rcx", "r10", "r11", "memory");
if (cf) ax = -ax;
STRACE("futex(%p, FUTEX_WAIT, %d, %s) → %s", addr, expect,
DescribeTimespec(buf, sizeof(buf), 0, timeout),
ax ? strerrno(-ax) : "0");
ax = _futex(addr, FUTEX_WAIT, expect, timeout, 0);
STRACE("futex(%t[%p], FUTEX_WAIT, %d, %s) → %s", addr, addr, expect,
DescribeTimespec(0, timeout), DescribeFutexWaitResult(alloca(12), ax));
return ax;
}

26
libc/intrin/futex_wake.c
View file

@ -19,31 +19,27 @@
#include "libc/bits/asmflag.h"
#include "libc/calls/strace.internal.h"
#include "libc/fmt/itoa.h"
#include "libc/intrin/describeflags.internal.h"
#include "libc/intrin/futex.internal.h"
#include "libc/mem/alloca.h"
#include "libc/str/str.h"
#include "libc/sysv/consts/futex.h"
#include "libc/sysv/consts/nr.h"
static const char *FormatFutexWakeResult(char buf[12], int ax) {
if (ax >= 0) {
static const char *DescribeFutexWakeResult(char buf[12], int ax) {
const char *s;
if (ax < 0 && (s = strerrno(ax))) {
return s;
} else {
FormatInt32(buf, ax);
return buf;
} else {
return strerrno(-ax);
}
}
privileged int _futex_wake(void *addr, int count) {
int _futex_wake(void *addr, int count) {
int ax;
bool cf;
char buf[12];
asm volatile(CFLAG_ASM("clc\n\t"
"syscall")
: CFLAG_CONSTRAINT(cf), "=a"(ax)
: "1"(__NR_futex), "D"(addr), "S"(FUTEX_WAKE), "d"(count)
: "rcx", "r11", "memory");
if (cf) ax = -ax;
STRACE("futex(%p, FUTEX_WAKE, %d) → %s", addr, count,
FormatFutexWakeResult(buf, ax));
ax = _futex(addr, FUTEX_WAKE, count, 0, 0);
STRACE("futex(%t[%p], FUTEX_WAKE, %d) → %s", addr, addr, count,
DescribeFutexWakeResult(alloca(12), ax));
return ax;
}

2
libc/intrin/getfileattributes.c
View file

@ -36,6 +36,6 @@ textwindows uint32_t GetFileAttributes(const char16_t *lpPathName) {
flags = __imp_GetFileAttributesW(lpPathName);
if (flags == -1u) __winerr();
NTTRACE("GetFileAttributes(%#hs) → %s% m", lpPathName,
DescribeNtFileFlagsAndAttributes(flags));
DescribeNtFileFlagAttr(flags));
return flags;
}

2
libc/intrin/getmagnumstr.greg.c → libc/intrin/getmagnumstr.c
View file

@ -18,7 +18,7 @@
╚─────────────────────────────────────────────────────────────────────────────*/
#include "libc/fmt/magnumstrs.internal.h"
privileged char *GetMagnumStr(const struct MagnumStr *ms, int x) {
char *GetMagnumStr(const struct MagnumStr *ms, int x) {
int i;
for (i = 0; ms[i].x != MAGNUM_TERMINATOR; ++i) {
if (x == MAGNUM_NUMBER(ms, i)) {

65
libc/intrin/gettid.greg.c
View file

@ -16,15 +16,12 @@
│ TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR │
│ PERFORMANCE OF THIS SOFTWARE. │
╚─────────────────────────────────────────────────────────────────────────────*/
#include "libc/assert.h"
#include "libc/calls/calls.h"
#include "libc/calls/syscall-sysv.internal.h"
#include "libc/dce.h"
#include "libc/nexgen32e/gettls.h"
#include "libc/nexgen32e/threaded.h"
#include "libc/nt/thread.h"
#include "libc/nt/thunk/msabi.h"
#include "libc/runtime/internal.h"
__msabi extern typeof(GetCurrentThreadId) *const __imp_GetCurrentThreadId;
/**
* Returns current thread id.
@ -54,60 +51,10 @@ __msabi extern typeof(GetCurrentThreadId) *const __imp_GetCurrentThreadId;
* @threadsafe
*/
privileged int gettid(void) {
int rc;
int64_t wut;
struct WinThread *wt;
int tid;
if (__tls_enabled) {
rc = *(int *)(__get_tls_inline() + 0x38);
return rc;
tid = *(int *)(__get_tls_inline() + 0x38);
if (tid > 0) return tid;
}
if (IsWindows()) {
return __imp_GetCurrentThreadId();
}
if (IsLinux()) {
asm("syscall"
: "=a"(rc) // man says always succeeds
: "0"(186) // __NR_gettid
: "rcx", "r11", "memory");
return rc;
}
if (IsXnu()) {
asm("syscall" // xnu/osfmk/kern/ipc_tt.c
: "=a"(rc) // assume success
: "0"(0x1000000 | 27) // Mach thread_self_trap()
: "rcx", "r11", "memory", "cc");
return rc;
}
if (IsOpenbsd()) {
asm("syscall"
: "=a"(rc) // man says always succeeds
: "0"(299) // getthrid()
: "rcx", "r11", "memory", "cc");
return rc;
}
if (IsNetbsd()) {
asm("syscall"
: "=a"(rc) // man says always succeeds
: "0"(311) // _lwp_self()
: "rcx", "rdx", "r11", "memory", "cc");
return rc;
}
if (IsFreebsd()) {
asm("syscall"
: "=a"(rc), // only fails w/ EFAULT, which isn't possible
"=m"(wut) // must be 64-bit
: "0"(432), // thr_self()
"D"(&wut) // but not actually 64-bit
: "rcx", "r11", "memory", "cc");
return wut; // narrowing intentional
}
return __pid;
return sys_gettid();
}

28
libc/intrin/intrin.mk
View file

@ -28,7 +28,8 @@ LIBC_INTRIN_A_DIRECTDEPS = \
LIBC_SYSV \
LIBC_SYSV_CALLS \
LIBC_NEXGEN32E \
LIBC_NT_KERNEL32
LIBC_NT_KERNEL32 \
LIBC_NT_WS2_32
LIBC_INTRIN_A_DEPS := \
$(call uniq,$(foreach x,$(LIBC_INTRIN_A_DIRECTDEPS),$($(x))))
@ -76,6 +77,7 @@ o/$(MODE)/libc/intrin/kprintf.greg.o: \
o/$(MODE)/libc/intrin/futex_wait.o \
o/$(MODE)/libc/intrin/futex_wake.o \
o/$(MODE)/libc/intrin/gettid.greg.o \
o/$(MODE)/libc/intrin/sys_gettid.greg.o \
o/$(MODE)/libc/intrin/pthread_mutex_lock.o \
o/$(MODE)/libc/intrin/pthread_mutex_unlock.o \
o/$(MODE)/libc/intrin/pthread_mutex_trylock.o \
@ -97,18 +99,21 @@ o/$(MODE)/libc/intrin/restorewintty.o: \
OVERRIDE_CFLAGS += \
-fno-sanitize=all
# we can't use asan because:
# sys_mmap() calls these which sets up shadow memory
o/$(MODE)/libc/intrin/describeflags.o \
o/$(MODE)/libc/intrin/describeframe.o \
o/$(MODE)/libc/intrin/describemapflags.o \
o/$(MODE)/libc/intrin/describeprotflags.o: \
OVERRIDE_CFLAGS += \
-fno-sanitize=address
o/$(MODE)/libc/intrin/tls.greg.o \
o/$(MODE)/libc/intrin/exit.greg.o \
o/$(MODE)/libc/intrin/exit1.greg.o \
o/$(MODE)/libc/intrin/getenv.greg.o \
o/$(MODE)/libc/intrin/assertfail.greg.o \
o/$(MODE)/libc/intrin/describeiov.greg.o \
o/$(MODE)/libc/intrin/describestat.greg.o \
o/$(MODE)/libc/intrin/describeflags.greg.o \
o/$(MODE)/libc/intrin/describerlimit.greg.o \
o/$(MODE)/libc/intrin/deviceiocontrol.greg.o \
o/$(MODE)/libc/intrin/describemapflags.greg.o \
o/$(MODE)/libc/intrin/describetimespec.greg.o \
o/$(MODE)/libc/intrin/wsarecv.o \
o/$(MODE)/libc/intrin/wsarecvfrom.o \
o/$(MODE)/libc/intrin/createfile.o \
o/$(MODE)/libc/intrin/reopenfile.o \
o/$(MODE)/libc/intrin/deletefile.o \
@ -140,6 +145,7 @@ o/$(MODE)/libc/intrin/createfilemapping.o \
o/$(MODE)/libc/intrin/createfilemappingnuma.o \
o/$(MODE)/libc/intrin/waitformultipleobjects.o \
o/$(MODE)/libc/intrin/generateconsolectrlevent.o \
o/$(MODE)/libc/intrin/wsawaitformultipleevents.o \
o/$(MODE)/libc/intrin/kstarttsc.o \
o/$(MODE)/libc/intrin/nomultics.o \
o/$(MODE)/libc/intrin/ntconsolemode.o: \
@ -150,10 +156,6 @@ o/$(MODE)/libc/intrin/ntconsolemode.o: \
-fno-stack-protector \
-fno-sanitize=all
o/$(MODE)/libc/intrin/describeopenflags.greg.o: \
OVERRIDE_CPPFLAGS += \
-DSTACK_FRAME_UNLIMITED
o//libc/intrin/memmove.o: \
OVERRIDE_CFLAGS += \
-fno-toplevel-reorder

0
libc/calls/kclocknames.S → libc/intrin/kclocknames.S
View file

0
libc/sock/kipoptnames.S → libc/intrin/kipoptnames.S
View file

1
libc/intrin/kprintf.greg.c
View file

@ -23,6 +23,7 @@
#include "libc/bits/weaken.h"
#include "libc/calls/calls.h"
#include "libc/calls/state.internal.h"
#include "libc/calls/syscall-sysv.internal.h"
#include "libc/dce.h"
#include "libc/errno.h"
#include "libc/fmt/divmod10.internal.h"

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