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android: fix crashhandler

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This commit is contained in:
nillerusr
2022-09-17 03:01:26 +03:00
parent 8a7e28d38d
commit b1a3eafbe6
8 changed files with 1525 additions and 17 deletions
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62
launcher/android/crashhandler.cpp
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@@ -20,6 +20,7 @@ GNU General Public License for more details.
#include "tier0/dbg.h"
#include <stdlib.h>
#include <inttypes.h>
#include "libunwind/libunwind.h"
struct sigaction old_sa;
@@ -32,6 +33,14 @@ namespace __cxxabiv1
}
}
#define MAX_FRAMES 2048
struct backtrace_t
{
int count;
uintptr_t frames[MAX_FRAMES];
};
#define Log(msg) __android_log_print(ANDROID_LOG_DEBUG, "SRCENG", "%s", msg); DebugLogger()->Write(msg);
void printPC(void *pc)
@@ -43,7 +52,13 @@ void printPC(void *pc)
Dl_info info = { 0 };
const char *fname = "unknown";
dladdr(pc, &info);
if( dladdr(pc, &info) <= 0 )
{
snprintf( message, sizeof(message), "0x%" PRIXPTR "\n", (uintptr_t)pc );
Log(message);
return;
}
if( info.dli_fname )
fname = info.dli_fname;
@@ -62,28 +77,61 @@ void printPC(void *pc)
Log(message);
}
_Unwind_Reason_Code UnwindBacktraceWithSkippingCallback(struct _Unwind_Context* unwind_context, void* state_voidp)
_Unwind_Reason_Code UnwindBacktraceCallback(struct _Unwind_Context* unwind_context, void* state_voidp)
{
uintptr_t pc = _Unwind_GetIP(unwind_context);
printPC((void*)pc);
backtrace_t *bt = (backtrace_t*)state_voidp;
if( bt->count < MAX_FRAMES )
bt->frames[bt->count++] = pc;
else
return _URC_END_OF_STACK;
return _URC_NO_REASON;
}
static void CrashHandler( int sig, siginfo_t *si, void *uc)
{
char message[4096], symbol[256];
static char message[4096], symbol[256];
int len, line, logfd, i = 0;
const ucontext_t* signal_ucontext = (ucontext_t*)uc;
const mcontext_t* signal_mcontext = &(signal_ucontext->uc_mcontext);
#ifdef __aarch64__
// Doesn't work good on armv7a
static backtrace_t bt;
bt.count = 0;
_Unwind_Backtrace(UnwindBacktraceCallback, &bt);
Log(">>> crash report begin\n");
snprintf(message, sizeof(message), "Signal=%d, errno=%d, code=%d, addr=0x%" PRIXPTR "\n", sig, si->si_errno, si->si_code, (uintptr_t)si->si_addr);
Log(message);
const ucontext_t* signal_ucontext = (ucontext_t*)uc;
const mcontext_t* signal_mcontext = &(signal_ucontext->uc_mcontext);
for( int i = 0; i < bt.count; i++ )
{
printPC( (void*)bt.frames[i] );
}
#else
Log(">>> crash report begin\n");
_Unwind_Backtrace(UnwindBacktraceWithSkippingCallback, NULL);
snprintf(message, sizeof(message), "Signal=%d, errno=%d, code=%d, addr=0x%" PRIXPTR "\n", sig, si->si_errno, si->si_code, (uintptr_t)si->si_addr);
Log(message);
// Initialize unw_context and unw_cursor.
unw_context_t unw_context = {};
unw_getcontext(&unw_context);
unw_cursor_t unw_cursor = {};
unw_init_local(&unw_cursor, &unw_context);
while (unw_step(&unw_cursor) > 0) {
unw_word_t ip = 0;
unw_get_reg(&unw_cursor, UNW_REG_IP, &ip);
printPC( (void*)ip );
}
#endif
Log(">>> crash report end\n");