diff options
Diffstat (limited to 'src/gallium/auxiliary')
| -rw-r--r-- | src/gallium/auxiliary/Android.mk | 3 | ||||
| -rw-r--r-- | src/gallium/auxiliary/util/u_debug_stack_android.cpp | 111 |
2 files changed, 113 insertions, 1 deletions
diff --git a/src/gallium/auxiliary/Android.mk b/src/gallium/auxiliary/Android.mk index 26938384fb..acd243b834 100644 --- a/src/gallium/auxiliary/Android.mk +++ b/src/gallium/auxiliary/Android.mk @@ -32,7 +32,8 @@ LOCAL_SRC_FILES := \ $(C_SOURCES) \ $(NIR_SOURCES) \ $(RENDERONLY_SOURCES) \ - $(VL_STUB_SOURCES) + $(VL_STUB_SOURCES) \ + util/u_debug_stack_android.cpp LOCAL_C_INCLUDES := \ $(GALLIUM_TOP)/auxiliary/util diff --git a/src/gallium/auxiliary/util/u_debug_stack_android.cpp b/src/gallium/auxiliary/util/u_debug_stack_android.cpp new file mode 100644 index 0000000000..b3d56aebe6 --- /dev/null +++ b/src/gallium/auxiliary/util/u_debug_stack_android.cpp @@ -0,0 +1,111 @@ +/* + * Copyright (C) 2018 Stefan Schake <stschake@gmail.com> + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice (including the next + * paragraph) shall be included in all copies or substantial portions of the + * Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING + * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS + * IN THE SOFTWARE. + */ + +#include <backtrace/Backtrace.h> + +#include "u_debug.h" +#include "u_debug_stack.h" +#include "util/hash_table.h" +#include "os/os_thread.h" + +static hash_table *backtrace_table; +static mtx_t table_mutex = _MTX_INITIALIZER_NP; + +void +debug_backtrace_capture(debug_stack_frame *mesa_backtrace, + unsigned start_frame, + unsigned nr_frames) +{ + hash_entry *backtrace_entry; + Backtrace *backtrace; + pid_t tid = gettid(); + + if (!nr_frames) + return; + + /* We keep an Android Backtrace handler around for each thread */ + mtx_lock(&table_mutex); + if (!backtrace_table) + backtrace_table = _mesa_hash_table_create(NULL, _mesa_hash_pointer, + _mesa_key_pointer_equal); + + backtrace_entry = _mesa_hash_table_search(backtrace_table, (void*) tid); + if (!backtrace_entry) { + backtrace = Backtrace::Create(getpid(), tid); + _mesa_hash_table_insert(backtrace_table, (void*) tid, backtrace); + } else { + backtrace = (Backtrace *) backtrace_entry->data; + } + mtx_unlock(&table_mutex); + + /* Add one to exclude this call. Unwind already ignores itself. */ + backtrace->Unwind(start_frame + 1); + + /* Store the Backtrace handler in the first mesa frame for reference. + * Unwind will generally return less frames than nr_frames specified + * but we have no good way of storing the real count otherwise. + * The Backtrace handler only stores the results until the next Unwind, + * but that is how u_debug_stack is used anyway. + */ + mesa_backtrace->function = backtrace; +} + +void +debug_backtrace_dump(const debug_stack_frame *mesa_backtrace, + unsigned nr_frames) +{ + Backtrace *backtrace = (Backtrace *) mesa_backtrace->function; + size_t i; + + if (!nr_frames) + return; + + if (nr_frames > backtrace->NumFrames()) + nr_frames = backtrace->NumFrames(); + for (i = 0; i < nr_frames; i++) { + /* There is no prescribed format and this isn't interpreted further, + * so we simply use the default Android format. + */ + const std::string& frame_line = backtrace->FormatFrameData(i); + debug_printf("%s\n", frame_line.c_str()); + } +} + +void +debug_backtrace_print(FILE *f, + const debug_stack_frame *mesa_backtrace, + unsigned nr_frames) +{ + Backtrace *backtrace = (Backtrace *) mesa_backtrace->function; + size_t i; + + if (!nr_frames) + return; + + if (nr_frames > backtrace->NumFrames()) + nr_frames = backtrace->NumFrames(); + for (i = 0; i < nr_frames; i++) { + const std::string& frame_line = backtrace->FormatFrameData(i); + fprintf(f, "%s\n", frame_line.c_str()); + } +} |