#include <sys/types.h>
#include <sys/user.h>
+#include "client/linux/dump_writer_common/mapping_info.h"
+#include "client/linux/dump_writer_common/thread_info.h"
#include "common/memory.h"
#include "google_breakpad/common/minidump_format.h"
namespace google_breakpad {
-#if defined(__i386) || defined(__x86_64)
-typedef typeof(((struct user*) 0)->u_debugreg[0]) debugreg_t;
-#endif
-
// Typedef for our parsing of the auxv variables in /proc/pid/auxv.
#if defined(__i386) || defined(__ARM_EABI__) || defined(__mips__)
typedef Elf32_auxv_t elf_aux_entry;
// This should always be less than NAME_MAX!
const char kLinuxGateLibraryName[] = "linux-gate.so";
-// We produce one of these structures for each thread in the crashed process.
-struct ThreadInfo {
- pid_t tgid; // thread group id
- pid_t ppid; // parent process
-
- uintptr_t stack_pointer; // thread stack pointer
-
-
-#if defined(__i386) || defined(__x86_64)
- user_regs_struct regs;
- user_fpregs_struct fpregs;
- static const unsigned kNumDebugRegisters = 8;
- debugreg_t dregs[8];
-#if defined(__i386)
- user_fpxregs_struct fpxregs;
-#endif // defined(__i386)
-
-#elif defined(__ARM_EABI__)
- // Mimicking how strace does this(see syscall.c, search for GETREGS)
- struct user_regs regs;
- struct user_fpregs fpregs;
-#elif defined(__aarch64__)
- // Use the structures defined in <asm/ptrace.h>
- struct user_pt_regs regs;
- struct user_fpsimd_state fpregs;
-#elif defined(__mips__)
- user_regs_struct regs;
- user_fpregs_struct fpregs;
- uint32_t hi[3];
- uint32_t lo[3];
- uint32_t dsp_control;
-#endif
-};
-
-// One of these is produced for each mapping in the process (i.e. line in
-// /proc/$x/maps).
-struct MappingInfo {
- uintptr_t start_addr;
- size_t size;
- size_t offset; // offset into the backed file.
- bool exec; // true if the mapping has the execute bit set.
- char name[NAME_MAX];
-};
-
class LinuxDumper {
public:
explicit LinuxDumper(pid_t pid);
virtual bool BuildProcPath(char* path, pid_t pid, const char* node) const = 0;
// Generate a File ID from the .text section of a mapped entry.
- // If not a member, mapping_id is ignored.
+ // If not a member, mapping_id is ignored. This method can also manipulate the
+ // |mapping|.name to truncate "(deleted)" from the file name if necessary.
bool ElfFileIdentifierForMapping(const MappingInfo& mapping,
bool member,
unsigned int mapping_id,
uint8_t identifier[sizeof(MDGUID)]);
- // Find the shared object name (SONAME) by examining the ELF information
- // for |mapping|. If the SONAME is found copy it into the passed buffer
- // |soname| and return true. The size of the buffer is |soname_size|.
- // The SONAME will be truncated if it is too long to fit in the buffer.
- static bool ElfFileSoName(
- const MappingInfo& mapping, char* soname, size_t soname_size);
-
uintptr_t crash_address() const { return crash_address_; }
void set_crash_address(uintptr_t crash_address) {
crash_address_ = crash_address;
pid_t crash_thread() const { return crash_thread_; }
void set_crash_thread(pid_t crash_thread) { crash_thread_ = crash_thread; }
+ // Extracts the effective path and file name of from |mapping|. In most cases
+ // the effective name/path are just the mapping's path and basename. In some
+ // other cases, however, a library can be mapped from an archive (e.g., when
+ // loading .so libs from an apk on Android) and this method is able to
+ // reconstruct the original file name.
+ static void GetMappingEffectiveNameAndPath(const MappingInfo& mapping,
+ char* file_path,
+ size_t file_path_size,
+ char* file_name,
+ size_t file_name_size);
+
protected:
bool ReadAuxv();