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add aarch64 support to minidump-2-core

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The thread info expects the struct names as they expect in asm/ptrace.h,
but the header doesn't include that, it includes sys/user.h.  Rename the
reg structs to match that header.

Rename the elf_siginfo to _elf_siginfo to avoid conflicting with the one
in the sys/procfs.h.  It is only used locally in one place, so we don't
need to update any callers.

Otherwise, drop in aarch64 support into the minidump-2-core file.

BUG=chromium:334368


git-svn-id: http://google-breakpad.googlecode.com/svn/trunk@1474 4c0a9323-5329-0410-9bdc-e9ce6186880e
This commit is contained in:
vapier@chromium.org 2015-07-20 10:21:27 +00:00
parent 85e4cf8029
commit 0b7c158932
2 changed files with 37 additions and 10 deletions
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6
src/client/linux/dump_writer_common/thread_info.h
View file

@ -65,9 +65,9 @@ struct ThreadInfo {
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;
// Use the structures defined in <sys/user.h>
struct user_regs_struct regs;
struct user_fpsimd_struct fpregs;
#elif defined(__mips__)
// Use the structure defined in <sys/ucontext.h>.
mcontext_t mcontext;

41
src/tools/linux/md2core/minidump-2-core.cc
View file

@ -74,6 +74,8 @@
#define ELF_ARCH EM_ARM
#elif defined(__mips__)
#define ELF_ARCH EM_MIPS
#elif defined(__aarch64__)
#define ELF_ARCH EM_AARCH64
#endif
#if defined(__arm__)
@ -136,14 +138,14 @@ typedef struct elf_timeval { /* Time value with microsecond resolution */
long tv_usec; /* Microseconds */
} elf_timeval;
typedef struct elf_siginfo { /* Information about signal (unused) */
typedef struct _elf_siginfo { /* Information about signal (unused) */
int32_t si_signo; /* Signal number */
int32_t si_code; /* Extra code */
int32_t si_errno; /* Errno */
} elf_siginfo;
} _elf_siginfo;
typedef struct prstatus { /* Information about thread; includes CPU reg*/
elf_siginfo pr_info; /* Info associated with signal */
_elf_siginfo pr_info; /* Info associated with signal */
uint16_t pr_cursig; /* Current signal */
unsigned long pr_sigpend; /* Set of pending signals */
unsigned long pr_sighold; /* Set of held signals */
@ -213,15 +215,18 @@ struct CrashedProcess {
pid_t tid;
#if defined(__mips__)
mcontext_t mcontext;
#else // __mips__
#else
user_regs_struct regs;
#endif
#if defined(__i386__) || defined(__x86_64__)
user_fpregs_struct fpregs;
#endif // __i386__ || __x86_64__
#endif
#if defined(__i386__)
user_fpxregs_struct fpxregs;
#endif // __i386__
#endif // __mips__
#endif
#if defined(__aarch64__)
user_fpsimd_struct fpregs;
#endif
uintptr_t stack_addr;
const uint8_t* stack;
size_t stack_length;
@ -371,6 +376,22 @@ ParseThreadRegisters(CrashedProcess::Thread* thread,
thread->regs.uregs[16] = rawregs->cpsr;
thread->regs.uregs[17] = 0; // what is ORIG_r0 exactly?
}
#elif defined(__aarch64__)
static void
ParseThreadRegisters(CrashedProcess::Thread* thread,
const MinidumpMemoryRange& range) {
const MDRawContextARM64* rawregs = range.GetData<MDRawContextARM64>(0);
for (int i = 0; i < 31; ++i)
thread->regs.regs[i] = rawregs->iregs[i];
thread->regs.sp = rawregs->iregs[MD_CONTEXT_ARM64_REG_SP];
thread->regs.pc = rawregs->iregs[MD_CONTEXT_ARM64_REG_PC];
thread->regs.pstate = rawregs->cpsr;
memcpy(thread->fpregs.vregs, rawregs->float_save.regs, 8 * 32);
thread->fpregs.fpsr = rawregs->float_save.fpsr;
thread->fpregs.fpcr = rawregs->float_save.fpcr;
}
#elif defined(__mips__)
static void
ParseThreadRegisters(CrashedProcess::Thread* thread,
@ -466,6 +487,12 @@ ParseSystemInfo(CrashedProcess* crashinfo, const MinidumpMemoryRange& range,
"This version of minidump-2-core only supports ARM (32bit).\n");
_exit(1);
}
#elif defined(__aarch64__)
if (sysinfo->processor_architecture != MD_CPU_ARCHITECTURE_ARM64) {
fprintf(stderr,
"This version of minidump-2-core only supports ARM (64bit).\n");
_exit(1);
}
#elif defined(__mips__)
if (sysinfo->processor_architecture != MD_CPU_ARCHITECTURE_MIPS) {
fprintf(stderr,