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* fix script * initial paths fixes * use lld ref * keep NDKs make file * mk for libunwind fixes * draft implementation of the unwinder using `_Unwind_Backtrace` and `_Unwind_GetIP` * add `_Unwind_Backtrace` + `_Unwind_GetIP` implementation of the stack unwinding * build luajit with ndk 25 * rebuild bullet for android * rebuild protobuf for android * Revert "draft implementation of the unwinder using `_Unwind_Backtrace` and `_Unwind_GetIP`" This reverts commit e790b25. * fix LD arguments for protobuf on Android * fix extender constants * make sure this dmSDK uses NDK25b first * don't need to link STL manually anymore * use llvm-ar tools instead of GCC `ar` * fix build_input for ndk25 * use NDK25 instead of NDK25b for enviroment variables * use libunwind_ndk name
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,172 @@ | ||
| // Copyright 2020-2022 The Defold Foundation | ||
| // Copyright 2014-2020 King | ||
| // Copyright 2009-2014 Ragnar Svensson, Christian Murray | ||
| // Licensed under the Defold License version 1.0 (the "License"); you may not use | ||
| // this file except in compliance with the License. | ||
| // | ||
| // You may obtain a copy of the License, together with FAQs at | ||
| // https://www.defold.com/license | ||
| // | ||
| // Unless required by applicable law or agreed to in writing, software distributed | ||
| // under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR | ||
| // CONDITIONS OF ANY KIND, either express or implied. See the License for the | ||
| // specific language governing permissions and limitations under the License. | ||
|
|
||
| #include <assert.h> | ||
| #include <dlib/log.h> | ||
| #include <dlib/dlib.h> | ||
| #include <signal.h> | ||
| #include <stdio.h> | ||
| #include <unwind.h> | ||
| #include <dlfcn.h> | ||
| #include "crash.h" | ||
| #include "crash_private.h" | ||
|
|
||
| namespace dmCrash | ||
| { | ||
| static const int SIGNAL_MAX = 64; | ||
|
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| static bool g_CrashDumpEnabled = true; | ||
| static FCallstackExtraInfoCallback g_CrashExtraInfoCallback = 0; | ||
| static void* g_CrashExtraInfoCallbackCtx = 0; | ||
|
|
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| struct unwind_data { | ||
| uint32_t offset_extra; | ||
| uint32_t stack_index; | ||
| }; | ||
|
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||
| void EnableHandler(bool enable) | ||
| { | ||
| g_CrashDumpEnabled = enable; | ||
| } | ||
|
|
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| void HandlerSetExtraInfoCallback(FCallstackExtraInfoCallback cbk, void* ctx) | ||
| { | ||
| g_CrashExtraInfoCallback = cbk; | ||
| g_CrashExtraInfoCallbackCtx = ctx; | ||
| } | ||
|
|
||
| _Unwind_Reason_Code OnFrameEnter(struct _Unwind_Context *context, void *data) | ||
| { | ||
| unwind_data * unwindData = (unwind_data *) data; | ||
| const uintptr_t pc = _Unwind_GetIP(context); | ||
| if (pc) | ||
| { | ||
| g_AppState.m_Ptr[g_AppState.m_PtrCount] = (void*)(uintptr_t)pc; | ||
| g_AppState.m_PtrCount++; | ||
| Dl_info dl_info; | ||
| int result = dladdr((void *) pc, &dl_info); | ||
| if (result) { | ||
| const char* proc_path = dl_info.dli_fname; | ||
| bool proc_path_truncated = false; | ||
| if (proc_path) { | ||
| int proc_path_len = strlen(proc_path); | ||
| if (proc_path_len > 32) { | ||
| proc_path = proc_path + (proc_path_len-32); | ||
| proc_path_truncated = true; | ||
| } | ||
| } | ||
| char extra[256]; | ||
| snprintf(extra, sizeof(extra), | ||
| "#%02d pc %012p %s%s %s+%u", | ||
| unwindData->stack_index++, | ||
| (void*)((uintptr_t)pc - (intptr_t) dl_info.dli_fbase), | ||
| proc_path_truncated ? "..." : "", | ||
| proc_path ? proc_path : "", | ||
| dl_info.dli_sname ? dl_info.dli_sname : "<unknown>", | ||
| dl_info.dli_saddr != NULL ? (void*)((intptr_t) pc - (intptr_t) dl_info.dli_saddr) : 0); | ||
|
|
||
| int extra_len = strlen(extra); | ||
| if ((unwindData->offset_extra + extra_len) < (dmCrash::AppState::EXTRA_MAX - 1)) | ||
| { | ||
| memcpy(g_AppState.m_Extra + unwindData->offset_extra, extra, extra_len); | ||
| g_AppState.m_Extra[unwindData->offset_extra + extra_len] = '\n'; | ||
| unwindData->offset_extra += extra_len + 1; | ||
| } | ||
| else | ||
| { | ||
| dmLogWarning("Not enough space to write entire stacktrace!"); | ||
| } | ||
| } | ||
| } | ||
| return g_AppState.m_PtrCount >= AppState::PTRS_MAX ? _URC_END_OF_STACK : _URC_NO_REASON; | ||
| } | ||
|
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| static void ResetToDefaultHandler(const int signum) | ||
| { | ||
| struct sigaction sa; | ||
| memset(&sa, 0, sizeof(sa)); | ||
| sigemptyset(&sa.sa_mask); | ||
| sa.sa_handler = SIG_DFL; | ||
| sa.sa_flags = 0; | ||
| sigaction(signum, &sa, NULL); | ||
| } | ||
|
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| static void Handler(const int signo, siginfo_t* const si, void *const sc) | ||
| { | ||
| if (!g_CrashDumpEnabled) | ||
| return; | ||
|
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| g_AppState.m_Signum = signo; | ||
| g_AppState.m_PtrCount = 0; | ||
|
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| // The default behavior is restored for the signal. | ||
| // Unless this is done first thing in the signal handler we'll | ||
| // be stuck in a signal-handler loop forever. | ||
| ResetToDefaultHandler(signo); | ||
|
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| unwind_data unwindData; | ||
| unwindData.offset_extra = 0; | ||
| unwindData.stack_index = 0; | ||
| _Unwind_Backtrace(OnFrameEnter, &unwindData); | ||
|
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| if (g_CrashExtraInfoCallback) | ||
| { | ||
| int extra_len = strlen(g_AppState.m_Extra); | ||
| g_CrashExtraInfoCallback(g_CrashExtraInfoCallbackCtx, g_AppState.m_Extra + extra_len, dmCrash::AppState::EXTRA_MAX - extra_len - 1); | ||
| } | ||
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| WriteCrash(g_FilePath, &g_AppState); | ||
|
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| bool is_debug_mode = dLib::IsDebugMode(); | ||
| dLib::SetDebugMode(true); | ||
| dmLogError("CALL STACK:\n\n%s\n", g_AppState.m_Extra); | ||
| dLib::SetDebugMode(is_debug_mode); | ||
| } | ||
|
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| void WriteDump() | ||
| { | ||
| siginfo_t empty; | ||
| Handler(0xDEAD, &empty, 0); | ||
| } | ||
|
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| void InstallOnSignal(int signum) | ||
| { | ||
| assert(signum >= 0 && signum < SIGNAL_MAX); | ||
|
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| struct sigaction sa; | ||
| memset(&sa, 0, sizeof(sa)); | ||
| sigemptyset(&sa.sa_mask); | ||
| sa.sa_sigaction = Handler; | ||
| sa.sa_flags = SA_SIGINFO; | ||
|
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| sigaction(signum, &sa, NULL); | ||
| } | ||
|
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| void SetCrashFilename(const char*) | ||
| { | ||
| } | ||
|
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| void PlatformPurge() | ||
| { | ||
| } | ||
|
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| void InstallHandler() | ||
| { | ||
| InstallOnSignal(SIGSEGV); | ||
| InstallOnSignal(SIGBUS); | ||
| InstallOnSignal(SIGTRAP); | ||
| InstallOnSignal(SIGILL); | ||
| InstallOnSignal(SIGABRT); | ||
| } | ||
| } |
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