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98 lines
2.3 KiB
C++
98 lines
2.3 KiB
C++
#include <stdio.h>
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#include "google_breakpad/processor/minidump.h"
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#include "nscore.h"
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using namespace google_breakpad;
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// Return true if the specified minidump contains a stream of |stream_type|.
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extern "C"
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NS_EXPORT bool
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DumpHasStream(const char* dump_file, uint32_t stream_type)
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{
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Minidump dump(dump_file);
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if (!dump.Read())
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return false;
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uint32_t length;
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if (!dump.SeekToStreamType(stream_type, &length) || length == 0)
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return false;
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return true;
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}
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// Return true if the specified minidump contains a memory region
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// that contains the instruction pointer from the exception record.
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extern "C"
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NS_EXPORT bool
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DumpHasInstructionPointerMemory(const char* dump_file)
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{
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Minidump minidump(dump_file);
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if (!minidump.Read())
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return false;
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MinidumpException* exception = minidump.GetException();
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MinidumpMemoryList* memory_list = minidump.GetMemoryList();
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if (!exception || !memory_list) {
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return false;
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}
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MinidumpContext* context = exception->GetContext();
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if (!context)
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return false;
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uint64_t instruction_pointer;
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if (!context->GetInstructionPointer(&instruction_pointer)) {
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return false;
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}
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MinidumpMemoryRegion* region =
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memory_list->GetMemoryRegionForAddress(instruction_pointer);
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return region != NULL;
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}
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// This function tests for a very specific condition. It finds
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// an address in a file, "crash-addr", in the CWD. It checks
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// that the minidump has a memory region starting at that
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// address. The region must be 32 bytes long and contain the
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// values 0 to 31 as bytes, in ascending order.
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extern "C"
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NS_EXPORT bool
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DumpCheckMemory(const char* dump_file)
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{
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Minidump dump(dump_file);
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if (!dump.Read())
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return false;
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MinidumpMemoryList* memory_list = dump.GetMemoryList();
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if (!memory_list) {
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return false;
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}
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void *addr;
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FILE *fp = fopen("crash-addr", "r");
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if (!fp)
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return false;
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if (fscanf(fp, "%p", &addr) != 1)
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return false;
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fclose(fp);
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remove("crash-addr");
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MinidumpMemoryRegion* region =
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memory_list->GetMemoryRegionForAddress(uint64_t(addr));
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if(!region)
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return false;
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const uint8_t* chars = region->GetMemory();
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if (region->GetSize() != 32)
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return false;
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for (int i=0; i<32; i++) {
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if (chars[i] != i)
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return false;
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}
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return true;
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}
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