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platform_system_core
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Merge changes I0ff1fc5c,I7a23d3bf 

* changes:
  libdebuggerd: print the build fingerprint in fallback.
  libdebuggerd: implement fallback register dumping on arm/aarch64.
This commit is contained in:
Josh Gao 2017-05-10 23:24:36 +00:00 committed by Gerrit Code Review
parent d761dd747e 62f5977d4a
commit 7d199de8e2
4 changed files with 47 additions and 27 deletions
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33
debuggerd/libdebuggerd/arm/machine.cpp
View File

@ -48,6 +48,21 @@ void dump_memory_and_code(log_t* log, Backtrace* backtrace) {
}
}
#define DUMP_GP_REGISTERS(log, reg_prefix) \
_LOG(log, logtype::REGISTERS, " r0 %08x r1 %08x r2 %08x r3 %08x\n", \
static_cast<uint32_t>(reg_prefix##r0), static_cast<uint32_t>(reg_prefix##r1), \
static_cast<uint32_t>(reg_prefix##r2), static_cast<uint32_t>(reg_prefix##r3)); \
_LOG(log, logtype::REGISTERS, " r4 %08x r5 %08x r6 %08x r7 %08x\n", \
static_cast<uint32_t>(reg_prefix##r4), static_cast<uint32_t>(reg_prefix##r5), \
static_cast<uint32_t>(reg_prefix##r6), static_cast<uint32_t>(reg_prefix##r7)); \
_LOG(log, logtype::REGISTERS, " r8 %08x r9 %08x sl %08x fp %08x\n", \
static_cast<uint32_t>(reg_prefix##r8), static_cast<uint32_t>(reg_prefix##r9), \
static_cast<uint32_t>(reg_prefix##r10), static_cast<uint32_t>(reg_prefix##fp)); \
_LOG(log, logtype::REGISTERS, " ip %08x sp %08x lr %08x pc %08x cpsr %08x\n", \
static_cast<uint32_t>(reg_prefix##ip), static_cast<uint32_t>(reg_prefix##sp), \
static_cast<uint32_t>(reg_prefix##lr), static_cast<uint32_t>(reg_prefix##pc), \
static_cast<uint32_t>(reg_prefix##cpsr))
void dump_registers(log_t* log, pid_t tid) {
pt_regs r;
if (ptrace(PTRACE_GETREGS, tid, 0, &r)) {
@ -55,19 +70,7 @@ void dump_registers(log_t* log, pid_t tid) {
return;
}
_LOG(log, logtype::REGISTERS, " r0 %08x r1 %08x r2 %08x r3 %08x\n",
static_cast<uint32_t>(r.ARM_r0), static_cast<uint32_t>(r.ARM_r1),
static_cast<uint32_t>(r.ARM_r2), static_cast<uint32_t>(r.ARM_r3));
_LOG(log, logtype::REGISTERS, " r4 %08x r5 %08x r6 %08x r7 %08x\n",
static_cast<uint32_t>(r.ARM_r4), static_cast<uint32_t>(r.ARM_r5),
static_cast<uint32_t>(r.ARM_r6), static_cast<uint32_t>(r.ARM_r7));
_LOG(log, logtype::REGISTERS, " r8 %08x r9 %08x sl %08x fp %08x\n",
static_cast<uint32_t>(r.ARM_r8), static_cast<uint32_t>(r.ARM_r9),
static_cast<uint32_t>(r.ARM_r10), static_cast<uint32_t>(r.ARM_fp));
_LOG(log, logtype::REGISTERS, " ip %08x sp %08x lr %08x pc %08x cpsr %08x\n",
static_cast<uint32_t>(r.ARM_ip), static_cast<uint32_t>(r.ARM_sp),
static_cast<uint32_t>(r.ARM_lr), static_cast<uint32_t>(r.ARM_pc),
static_cast<uint32_t>(r.ARM_cpsr));
DUMP_GP_REGISTERS(log, r.ARM_);
user_vfp vfp_regs;
if (ptrace(PTRACE_GETVFPREGS, tid, 0, &vfp_regs)) {
@ -81,3 +84,7 @@ void dump_registers(log_t* log, pid_t tid) {
}
_LOG(log, logtype::FP_REGISTERS, " scr %08lx\n", vfp_regs.fpscr);
}
void dump_registers(log_t* log, const ucontext_t* uc) {
DUMP_GP_REGISTERS(log, uc->uc_mcontext.arm_);
}

31
debuggerd/libdebuggerd/arm64/machine.cpp
View File

@ -52,6 +52,17 @@ void dump_memory_and_code(log_t* log, Backtrace* backtrace) {
}
}
#define DUMP_GP_REGISTERS(log) \
for (int i = 0; i < 28; i += 4) { \
const char* fmt = " x%-2d %016llx x%-2d %016llx x%-2d %016llx x%-2d %016llx\n"; \
_LOG(log, logtype::REGISTERS, fmt, i, r.regs[i], i + 1, r.regs[i + 1], i + 2, r.regs[i + 2], \
i + 3, r.regs[i + 3]); \
} \
_LOG(log, logtype::REGISTERS, " x28 %016llx x29 %016llx x30 %016llx\n", r.regs[28], \
r.regs[29], r.regs[30]); \
_LOG(log, logtype::REGISTERS, " sp %016llx pc %016llx pstate %016llx\n", r.sp, r.pc, \
r.pstate)
void dump_registers(log_t* log, pid_t tid) {
struct user_pt_regs r;
struct iovec io;
@ -63,20 +74,7 @@ void dump_registers(log_t* log, pid_t tid) {
return;
}
for (int i = 0; i < 28; i += 4) {
_LOG(log, logtype::REGISTERS,
" x%-2d %016llx x%-2d %016llx x%-2d %016llx x%-2d %016llx\n",
i, r.regs[i],
i+1, r.regs[i+1],
i+2, r.regs[i+2],
i+3, r.regs[i+3]);
}
_LOG(log, logtype::REGISTERS, " x28 %016llx x29 %016llx x30 %016llx\n",
r.regs[28], r.regs[29], r.regs[30]);
_LOG(log, logtype::REGISTERS, " sp %016llx pc %016llx pstate %016llx\n",
r.sp, r.pc, r.pstate);
DUMP_GP_REGISTERS(log);
struct user_fpsimd_state f;
io.iov_base = &f;
@ -99,3 +97,8 @@ void dump_registers(log_t* log, pid_t tid) {
}
_LOG(log, logtype::FP_REGISTERS, " fpsr %08x fpcr %08x\n", f.fpsr, f.fpcr);
}
void dump_registers(log_t* log, const ucontext_t* ucontext) {
const mcontext_t& r = ucontext->uc_mcontext;
DUMP_GP_REGISTERS(log);
}

1
debuggerd/libdebuggerd/include/machine.h
View File

@ -25,5 +25,6 @@
void dump_memory_and_code(log_t* log, Backtrace* backtrace);
void dump_registers(log_t* log, pid_t tid);
void dump_registers(log_t* log, const ucontext_t* uc);
#endif // _DEBUGGERD_MACHINE_H

9
debuggerd/libdebuggerd/tombstone.cpp
View File

@ -470,6 +470,11 @@ static void dump_backtrace_and_stack(Backtrace* backtrace, log_t* log) {
}
}
// Weak noop implementation, real implementations are in <arch>/machine.cpp.
__attribute__((weak)) void dump_registers(log_t* log, const ucontext_t*) {
_LOG(log, logtype::REGISTERS, " register dumping unimplemented on this architecture");
}
static void dump_thread(log_t* log, pid_t pid, pid_t tid, const std::string& process_name,
const std::string& thread_name, BacktraceMap* map,
uintptr_t abort_msg_address, bool primary_thread) {
@ -749,11 +754,15 @@ void engrave_tombstone_ucontext(int tombstone_fd, uintptr_t abort_msg_address, s
read_with_default("/proc/self/comm", thread_name, sizeof(thread_name), "<unknown>");
read_with_default("/proc/self/cmdline", process_name, sizeof(process_name), "<unknown>");
_LOG(&log, logtype::HEADER, "*** *** *** *** *** *** *** *** *** *** *** *** *** *** *** ***\n");
dump_header_info(&log);
dump_thread_info(&log, pid, tid, thread_name, process_name);
dump_signal_info(&log, siginfo);
std::unique_ptr<Backtrace> backtrace(Backtrace::Create(pid, tid));
dump_abort_message(backtrace.get(), &log, abort_msg_address);
dump_registers(&log, ucontext);
// TODO: Dump registers from the ucontext.
if (backtrace->Unwind(0, ucontext)) {
dump_backtrace_and_stack(backtrace.get(), &log);