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feat(crash): поднимать RLIMIT_CORE и логировать core_pattern при старте #3451

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Merged
bylins merged 1 commit into from
Jun 14, 2026
+37 −0
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feat(crash): поднимать RLIMIT_CORE и логировать core_pattern при старте #3451

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37 changes: 37 additions & 0 deletions src/engine/core/comm.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -67,6 +67,11 @@
#include "engine/db/sqlite_world_data_source.h"
#endif
#include "utils/utils.h"
#include <cstring>
#include <cerrno>
#ifndef _WIN32
#include <sys/resource.h> // RLIMIT_CORE -- только для unix-сборок
#endif
#include "engine/core/conf.h"
#include "engine/ui/modify.h"
#include "gameplay/statistics/money_drop.h"
Expand Down Expand Up @@ -2261,7 +2266,39 @@ RETSIGTYPE hupsig(int/* sig*/) {
* SunOS Release 4.0.2 (sun386) needs this too, according to Tim Aldric.
*/

// Поднимаем мягкий лимит на размер core до жёсткого (обычно unlimited), чтобы
// при падении мада ОС писала ПОЛНЫЙ core. Урезанный по размеру core читается в
// gdb как каша (стек неполный, фреймы "??"). Заодно логируем итоговый лимит и
// core_pattern, чтобы было видно, пишутся ли коры и куда.
static void enable_coredumps_and_log() {
#ifdef CIRCLE_UNIX
struct rlimit rl;
if (getrlimit(RLIMIT_CORE, &rl) == 0) {
const rlim_t was = rl.rlim_cur;
rl.rlim_cur = rl.rlim_max;
if (setrlimit(RLIMIT_CORE, &rl) != 0) {
log("SYSERR: setrlimit(RLIMIT_CORE) failed: %s", strerror(errno));
}
getrlimit(RLIMIT_CORE, &rl);
auto lim = [](rlim_t v) -> long long { return v == RLIM_INFINITY ? -1 : (long long) v; };
log("Core dumps: RLIMIT_CORE was %lld, set cur=%lld max=%lld (-1 = unlimited)",
lim(was), lim(rl.rlim_cur), lim(rl.rlim_max));
} else {
log("SYSERR: getrlimit(RLIMIT_CORE) failed: %s", strerror(errno));
}
if (FILE *f = fopen("/proc/sys/kernel/core_pattern", "r")) {
char pat[256] = {0};
if (fgets(pat, sizeof(pat), f)) {
pat[strcspn(pat, "\n")] = '\0';
log("Core pattern: %s", pat);
}
fclose(f);
}
#endif
}

void signal_setup(void) {
enable_coredumps_and_log();
my_signal(SIGINT, hupsig);
my_signal(SIGTERM, hupsig);
my_signal(SIGPIPE, SIG_IGN);
Expand Down
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