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cosmopolitan/libc/runtime/printargs.c
Justine Tunney 933411ba99 Improve synchronization 
- Fix bugs in kDos2Errno definition
- malloc() should now be thread safe
- Fix bug in rollup.com header generator
- Fix open(O_APPEND) on the New Technology
- Fix select() on the New Technology and test it
- Work towards refactoring i/o for thread safety
- Socket reads and writes on NT now poll for signals
- Work towards i/o completion ports on the New Technology
- Make read() and write() intermittently check for signals
- Blinkenlights keyboard i/o so much better on NT w/ poll()
- You can now poll() files and sockets at the same time on NT
- Fix bug in appendr() that manifests with dlmalloc footers off
2022-04-15 15:31:55 -07:00

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/*-*- 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 2021 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/calls.h"
#include "libc/calls/strace.internal.h"
#include "libc/calls/struct/sigset.h"
#include "libc/dce.h"
#include "libc/intrin/describeflags.internal.h"
#include "libc/intrin/kprintf.h"
#include "libc/macros.internal.h"
#include "libc/nt/enum/startf.h"
#include "libc/nt/runtime.h"
#include "libc/nt/startupinfo.h"
#include "libc/nt/struct/ldrdatatableentry.h"
#include "libc/nt/struct/startupinfo.h"
#include "libc/nt/struct/teb.h"
#include "libc/runtime/runtime.h"
#include "libc/runtime/stack.h"
#include "libc/sock/internal.h"
#include "libc/sock/sock.h"
#include "libc/sysv/consts/auxv.h"
#include "libc/sysv/consts/f.h"
#include "libc/sysv/consts/poll.h"
#include "libc/sysv/consts/sig.h"
#define PRINT(FMT, ...) kprintf(STRACE_PROLOGUE FMT "%n", ##__VA_ARGS__)
static const struct AuxiliaryValue {
const char *fmt;
long *id;
const char *name;
} kAuxiliaryValues[] = {
{"%-14p", &AT_EXECFD, "AT_EXECFD"},
{"%-14p", &AT_PHDR, "AT_PHDR"},
{"%-14p", &AT_PHENT, "AT_PHENT"},
{"%-14p", &AT_PHNUM, "AT_PHNUM"},
{"%-14p", &AT_PAGESZ, "AT_PAGESZ"},
{"%-14p", &AT_BASE, "AT_BASE"},
{"%-14p", &AT_ENTRY, "AT_ENTRY"},
{"%-14p", &AT_NOTELF, "AT_NOTELF"},
{"%-14d", &AT_UID, "AT_UID"},
{"%-14d", &AT_EUID, "AT_EUID"},
{"%-14d", &AT_GID, "AT_GID"},
{"%-14d", &AT_EGID, "AT_EGID"},
{"%-14d", &AT_CLKTCK, "AT_CLKTCK"},
{"%-14d", &AT_OSRELDATE, "AT_OSRELDATE"},
{"%-14p", &AT_PLATFORM, "AT_PLATFORM"},
{"%-14p", &AT_DCACHEBSIZE, "AT_DCACHEBSIZE"},
{"%-14p", &AT_ICACHEBSIZE, "AT_ICACHEBSIZE"},
{"%-14p", &AT_UCACHEBSIZE, "AT_UCACHEBSIZE"},
{"%-14p", &AT_SECURE, "AT_SECURE"},
{"%-14s", &AT_BASE_PLATFORM, "AT_BASE_PLATFORM"},
{"%-14p", &AT_RANDOM, "AT_RANDOM"},
{"%-14s", &AT_EXECFN, "AT_EXECFN"},
{"%-14p", &AT_SYSINFO_EHDR, "AT_SYSINFO_EHDR"},
{"%-14p", &AT_FLAGS, "AT_FLAGS"},
{"%-14p", &AT_HWCAP, "AT_HWCAP"},
{"%-14p", &AT_HWCAP2, "AT_HWCAP2"},
{"%-14p", &AT_STACKBASE, "AT_STACKBASE"},
{"%-14p", &AT_CANARY, "AT_CANARY"},
{"%-14p", &AT_CANARYLEN, "AT_CANARYLEN"},
{"%-14ld", &AT_NCPUS, "AT_NCPUS"},
{"%-14p", &AT_PAGESIZES, "AT_PAGESIZES"},
{"%-14d", &AT_PAGESIZESLEN, "AT_PAGESIZESLEN"},
{"%-14p", &AT_TIMEKEEP, "AT_TIMEKEEP"},
{"%-14p", &AT_STACKPROT, "AT_STACKPROT"},
{"%-14p", &AT_EHDRFLAGS, "AT_EHDRFLAGS"},
};
static const struct AuxiliaryValue *DescribeAuxv(unsigned long x) {
int i;
for (i = 0; i < ARRAYLEN(kAuxiliaryValues); ++i) {
if (*kAuxiliaryValues[i].id && x == *kAuxiliaryValues[i].id) {
return kAuxiliaryValues + i;
}
}
return NULL;
}
noasan textstartup void __printargs(void) {
#ifdef SYSDEBUG
int st;
long key;
char **env;
unsigned i;
sigset_t ss;
uintptr_t *auxp;
char path[PATH_MAX];
struct pollfd pfds[128];
struct AuxiliaryValue *auxinfo;
if (__strace <= 0) return;
st = __strace;
__strace = 0;
PRINT("");
PRINT("ARGUMENTS (%p)", __argv);
for (i = 0; i < __argc; ++i) {
PRINT(" ☼ %s", __argv[i]);
}
PRINT("");
PRINT("ENVIRONMENT (%p)", __envp);
for (env = __envp; *env; ++env) {
PRINT(" ☼ %s", *env);
}
PRINT("");
PRINT("AUXILIARY (%p)", __auxv);
for (auxp = __auxv; *auxp; auxp += 2) {
if ((auxinfo = DescribeAuxv(auxp[0]))) {
ksnprintf(path, sizeof(path), auxinfo->fmt, auxp[1]);
PRINT(" ☼ %16s[%4ld] = %s", auxinfo->name, auxp[0], path);
} else {
PRINT(" ☼ %16s[%4ld] = %014p", "unknown", auxp[0], auxp[1]);
}
}
PRINT("");
PRINT("SPECIALS");
PRINT(" ☼ %s = %#s", "kTmpPath", kTmpPath);
PRINT(" ☼ %s = %#s", "kNtSystemDirectory", kNtSystemDirectory);
PRINT(" ☼ %s = %#s", "kNtWindowsDirectory", kNtWindowsDirectory);
PRINT(" ☼ %s = %#s", "program_executable_name", GetProgramExecutableName());
PRINT(" ☼ %s = %#s", "GetInterpreterExecutableName()",
GetInterpreterExecutableName(path, sizeof(path)));
PRINT(" ☼ %s = %p", "RSP", __builtin_frame_address(0));
PRINT(" ☼ %s = %p", "GetStackAddr()", GetStackAddr(0));
PRINT(" ☼ %s = %p", "GetStaticStackAddr(0)", GetStaticStackAddr(0));
PRINT(" ☼ %s = %p", "GetStackSize()", GetStackSize());
if (!IsWindows()) {
PRINT("");
PRINT("OPEN FILE DESCRIPTORS");
for (i = 0; i < ARRAYLEN(pfds); ++i) {
pfds[i].fd = i;
pfds[i].events = 0;
}
if (sys_poll(pfds, ARRAYLEN(pfds), 0) != -1) {
for (i = 0; i < ARRAYLEN(pfds); ++i) {
if (~pfds[i].revents & POLLNVAL) {
PRINT(" ☼ %d (F_GETFL=%#x)", i, fcntl(i, F_GETFL));
}
}
}
}
if (!sigprocmask(SIG_BLOCK, 0, &ss) && (ss.__bits[0] || ss.__bits[1])) {
PRINT("");
PRINT("BLOCKED SIGNALS {%#lx, %#lx}", ss.__bits[0], ss.__bits[1]);
for (i = 0; i < 32; ++i) {
if (ss.__bits[0] & (1u << i)) {
PRINT(" ☼ %G (%d)", i + 1, i + 1);
}
}
}
if (IsWindows()) {
struct NtStartupInfo startinfo;
GetStartupInfo(&startinfo);
PRINT("");
PRINT("GETSTARTUPINFO");
if (startinfo.lpDesktop)
PRINT(" ☼ %s = %#!hs", "lpDesktop", startinfo.lpDesktop);
if (startinfo.lpTitle) PRINT(" ☼ %s = %#!hs", "lpTitle", startinfo.lpTitle);
if (startinfo.dwX) PRINT(" ☼ %s = %u", "dwX", startinfo.dwX);
if (startinfo.dwY) PRINT(" ☼ %s = %u", "dwY", startinfo.dwY);
if (startinfo.dwXSize) PRINT(" ☼ %s = %u", "dwXSize", startinfo.dwXSize);
if (startinfo.dwYSize) PRINT(" ☼ %s = %u", "dwYSize", startinfo.dwYSize);
if (startinfo.dwXCountChars)
PRINT(" ☼ %s = %u", "dwXCountChars", startinfo.dwXCountChars);
if (startinfo.dwYCountChars)
PRINT(" ☼ %s = %u", "dwYCountChars", startinfo.dwYCountChars);
if (startinfo.dwFillAttribute)
PRINT(" ☼ %s = %u", "dwFillAttribute", startinfo.dwFillAttribute);
if (startinfo.dwFlags)
PRINT(" ☼ %s = %s", "dwFlags", DescribeNtStartFlags(startinfo.dwFlags));
if (startinfo.wShowWindow)
PRINT(" ☼ %s = %hu", "wShowWindow", startinfo.wShowWindow);
if (startinfo.cbReserved2)
PRINT(" ☼ %s = %hu", "cbReserved2", startinfo.cbReserved2);
if (startinfo.hStdInput)
PRINT(" ☼ %s = %ld", "hStdInput", startinfo.hStdInput);
if (startinfo.hStdOutput)
PRINT(" ☼ %s = %ld", "hStdOutput", startinfo.hStdOutput);
if (startinfo.hStdError)
PRINT(" ☼ %s = %ld", "hStdError", startinfo.hStdError);
PRINT("");
PRINT("STANDARD HANDLES");
PRINT(" ☼ %s = %ld", "GetStdHandle(kNtStdInputHandle)",
GetStdHandle(kNtStdInputHandle));
PRINT(" ☼ %s = %ld", "GetStdHandle(kNtStdOutputHandle)",
GetStdHandle(kNtStdOutputHandle));
PRINT(" ☼ %s = %ld", "GetStdHandle(kNtStdErrorHandle)",
GetStdHandle(kNtStdErrorHandle));
PRINT("");
PRINT("TEB");
PRINT(" ☼ gs:0x%02x %s = %p", 0x00, "NtGetSeh()", _NtGetSeh());
PRINT(" ☼ gs:0x%02x %s = %p", 0x08, "NtGetStackHigh()", _NtGetStackHigh());
PRINT(" ☼ gs:0x%02x %s = %p", 0x10, "NtGetStackLow()", _NtGetStackLow());
PRINT(" ☼ gs:0x%02x %s = %p", 0x18, "_NtGetSubsystemTib()",
_NtGetSubsystemTib());
PRINT(" ☼ gs:0x%02x %s = %p", 0x20, "NtGetFib()", _NtGetFib());
PRINT(" ☼ gs:0x%02x %s = %p", 0x30, "NtGetTeb()", NtGetTeb());
PRINT(" ☼ gs:0x%02x %s = %p", 0x38, "NtGetEnv()", _NtGetEnv());
PRINT(" ☼ gs:0x%02x %s = %p", 0x40, "NtGetPid()", NtGetPid());
PRINT(" ☼ gs:0x%02x %s = %p", 0x48, "NtGetTid()", NtGetTid());
PRINT(" ☼ gs:0x%02x %s = %p", 0x50, "NtGetRpc()", _NtGetRpc());
PRINT(" ☼ gs:0x%02x %s = %p", 0x58, "NtGetTls()", _NtGetTls());
PRINT(" ☼ gs:0x%02x %s = %p", 0x60, "NtGetPeb()", NtGetPeb());
PRINT(" ☼ gs:0x%02x %s = %p", 0x68, "NtGetErr()", NtGetErr());
PRINT("");
PRINT("DEPENDENCIES");
struct NtLinkedList *head = &NtGetPeb()->Ldr->InLoadOrderModuleList;
struct NtLinkedList *ldr = head->Next;
do {
const struct NtLdrDataTableEntry *dll =
(const struct NtLdrDataTableEntry *)ldr;
PRINT(" ☼ %.*!hs\t\t%'zu bytes", dll->FullDllName.Length,
dll->FullDllName.Data, dll->SizeOfImage);
} while ((ldr = ldr->Next) && ldr != head);
}
PRINT("");
__strace = st;
#endif
}
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