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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-28 14:29:10 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-28 14:29:10 +0000 |
commit | 2aa4a82499d4becd2284cdb482213d541b8804dd (patch) | |
tree | b80bf8bf13c3766139fbacc530efd0dd9d54394c /toolkit/crashreporter/test/dumputils.cpp | |
parent | Initial commit. (diff) | |
download | firefox-upstream.tar.xz firefox-upstream.zip |
Adding upstream version 86.0.1.upstream/86.0.1upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'toolkit/crashreporter/test/dumputils.cpp')
-rw-r--r-- | toolkit/crashreporter/test/dumputils.cpp | 83 |
1 files changed, 83 insertions, 0 deletions
diff --git a/toolkit/crashreporter/test/dumputils.cpp b/toolkit/crashreporter/test/dumputils.cpp new file mode 100644 index 0000000000..fedaa6532a --- /dev/null +++ b/toolkit/crashreporter/test/dumputils.cpp @@ -0,0 +1,83 @@ +#include <stdio.h> + +#include "google_breakpad/processor/minidump.h" +#include "nscore.h" + +using namespace google_breakpad; + +// Return true if the specified minidump contains a stream of |stream_type|. +extern "C" NS_EXPORT bool DumpHasStream(const char* dump_file, + uint32_t stream_type) { + Minidump dump(dump_file); + if (!dump.Read()) return false; + + uint32_t length; + if (!dump.SeekToStreamType(stream_type, &length) || length == 0) return false; + + return true; +} + +// Return true if the specified minidump contains a memory region +// that contains the instruction pointer from the exception record. +extern "C" NS_EXPORT bool DumpHasInstructionPointerMemory( + const char* dump_file) { + Minidump minidump(dump_file); + if (!minidump.Read()) return false; + + MinidumpException* exception = minidump.GetException(); + MinidumpMemoryList* memory_list = minidump.GetMemoryList(); + if (!exception || !memory_list) { + return false; + } + + MinidumpContext* context = exception->GetContext(); + if (!context) return false; + + uint64_t instruction_pointer; + if (!context->GetInstructionPointer(&instruction_pointer)) { + return false; + } + + MinidumpMemoryRegion* region = + memory_list->GetMemoryRegionForAddress(instruction_pointer); + return region != nullptr; +} + +// This function tests for a very specific condition. It finds +// an address in a file, "crash-addr", in the CWD. It checks +// that the minidump has a memory region starting at that +// address. The region must be 32 bytes long and contain the +// values 0 to 31 as bytes, in ascending order. +extern "C" NS_EXPORT bool DumpCheckMemory(const char* dump_file) { + Minidump dump(dump_file); + if (!dump.Read()) return false; + + MinidumpMemoryList* memory_list = dump.GetMemoryList(); + if (!memory_list) { + return false; + } + + void* addr; + FILE* fp = fopen("crash-addr", "r"); + if (!fp) return false; + if (fscanf(fp, "%p", &addr) != 1) { + fclose(fp); + return false; + } + fclose(fp); + + remove("crash-addr"); + + MinidumpMemoryRegion* region = + memory_list->GetMemoryRegionForAddress(uint64_t(addr)); + if (!region) return false; + + const uint8_t* chars = region->GetMemory(); + if (region->GetSize() != 32) return false; + + for (int i = 0; i < 32; i++) { + if (chars[i] != i) return false; + } + + return true; +} |