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Make exciting improvements

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- Add Lua backtraces to redbean!
- Wipe serving keys after redbean forks
- Audit redbean to remove free via exit
- Log SSL client ciphersuite preferences
- Increase ASAN malloc() backtrace depth
- Make GetSslRoots() behave as a singleton
- Move leaks.c from LIBC_TESTLIB to LIBC_LOG
- Add undocumented %n to printf() for newlines
- Fix redbean memory leak reindexing inode change
- Fix redbean memory leak with Fetch() DNS object
- Restore original environ after __cxa_finalize()
- Make backtrace always work after __cxa_finalize()
- Introduce COUNTEXPR() diagnostic / benchmark tool
- Fix a few more instances of errno being clobbered
- Consolidate the ANSI color disabling internal APIs
This commit is contained in:
Justine Tunney 2022-03-18 02:33:37 -07:00
parent f5831a62fa
commit af645fcbec
61 changed files with 1354 additions and 814 deletions
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68
libc/runtime/finddebugbinary.c
View file

@ -17,15 +17,40 @@
│ PERFORMANCE OF THIS SOFTWARE. │
╚─────────────────────────────────────────────────────────────────────────────*/
#include "libc/bits/bits.h"
#include "libc/bits/safemacros.internal.h"
#include "libc/calls/calls.h"
#include "libc/calls/sysdebug.internal.h"
#include "libc/errno.h"
#include "libc/macros.internal.h"
#include "libc/runtime/runtime.h"
#include "libc/runtime/symbols.internal.h"
#include "libc/str/str.h"
#include "libc/sysv/consts/auxv.h"
static char *g_comdbg;
static char g_comdbg_buf[PATH_MAX + 1];
static optimizesize textstartup void g_comdbg_init() {
char *p;
size_t n;
static bool once;
if (!once) {
if (!(g_comdbg = getenv("COMDBG"))) {
p = program_executable_name;
n = strlen(p);
if (n > 4 && READ32LE(p + n - 4) == READ32LE(".dbg")) {
g_comdbg = p;
} else if (n > 4 && READ32LE(p + n - 4) == READ32LE(".com") &&
n + 4 <= PATH_MAX) {
mempcpy(mempcpy(g_comdbg_buf, p, n), ".dbg", 5);
if (fileexists(g_comdbg_buf)) {
g_comdbg = g_comdbg_buf;
}
} else if (n + 8 <= PATH_MAX) {
mempcpy(mempcpy(g_comdbg_buf, p, n), ".com.dbg", 9);
if (fileexists(g_comdbg_buf)) {
g_comdbg = g_comdbg_buf;
}
}
}
once = true;
}
}
/**
* Returns path of binary with the debug information, or null.
@ -33,31 +58,10 @@
* @return path to debug binary, or NULL
*/
const char *FindDebugBinary(void) {
static bool once;
static char *res;
static char buf[PATH_MAX + 1];
char *p;
size_t n;
if (!once) {
if (!(res = getenv("COMDBG"))) {
p = program_executable_name;
n = strlen(p);
if (n > 4 && READ32LE(p + n - 4) == READ32LE(".dbg")) {
res = p;
} else if (n > 4 && READ32LE(p + n - 4) == READ32LE(".com") &&
n + 4 <= PATH_MAX) {
mempcpy(mempcpy(buf, p, n), ".dbg", 5);
if (fileexists(buf)) {
res = buf;
}
} else if (n + 8 <= PATH_MAX) {
mempcpy(mempcpy(buf, p, n), ".com.dbg", 9);
if (fileexists(buf)) {
res = buf;
}
}
}
once = true;
}
return res;
g_comdbg_init();
return g_comdbg;
}
const void *const g_comdbg_ctor[] initarray = {
g_comdbg_init,
};