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Issue 196 - Breakpad processor support for x86-64. r=mento

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git-svn-id: http://google-breakpad.googlecode.com/svn/trunk@227 4c0a9323-5329-0410-9bdc-e9ce6186880e
This commit is contained in:
ted.mielczarek 2007-10-31 19:20:31 +00:00
parent 11e180cd3e
commit 8eb7111814
11 changed files with 833 additions and 216 deletions
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5
Makefile.am
View file

@ -93,6 +93,8 @@ src_libbreakpad_la_SOURCES = \
src/processor/simple_symbol_supplier.h \ src/processor/simple_symbol_supplier.h \
src/processor/stack_frame_info.h \ src/processor/stack_frame_info.h \
src/processor/stackwalker.cc \ src/processor/stackwalker.cc \
src/processor/stackwalker_amd64.cc \
src/processor/stackwalker_amd64.h \
src/processor/stackwalker_ppc.cc \ src/processor/stackwalker_ppc.cc \
src/processor/stackwalker_ppc.h \ src/processor/stackwalker_ppc.h \
src/processor/stackwalker_sparc.cc \ src/processor/stackwalker_sparc.cc \
@ -161,6 +163,7 @@ src_processor_minidump_processor_unittest_LDADD = \
src/processor/pathname_stripper.lo \ src/processor/pathname_stripper.lo \
src/processor/process_state.lo \ src/processor/process_state.lo \
src/processor/stackwalker.lo \ src/processor/stackwalker.lo \
src/processor/stackwalker_amd64.lo \
src/processor/stackwalker_ppc.lo \ src/processor/stackwalker_ppc.lo \
src/processor/stackwalker_sparc.lo \ src/processor/stackwalker_sparc.lo \
src/processor/stackwalker_x86.lo src/processor/stackwalker_x86.lo
@ -192,6 +195,7 @@ src_processor_stackwalker_selftest_LDADD = \
src/processor/minidump.lo \ src/processor/minidump.lo \
src/processor/pathname_stripper.lo \ src/processor/pathname_stripper.lo \
src/processor/stackwalker.lo \ src/processor/stackwalker.lo \
src/processor/stackwalker_amd64.lo \
src/processor/stackwalker_ppc.lo \ src/processor/stackwalker_ppc.lo \
src/processor/stackwalker_sparc.lo \ src/processor/stackwalker_sparc.lo \
src/processor/stackwalker_x86.lo src/processor/stackwalker_x86.lo
@ -221,6 +225,7 @@ src_processor_minidump_stackwalk_LDADD = \
src/processor/process_state.lo \ src/processor/process_state.lo \
src/processor/simple_symbol_supplier.lo \ src/processor/simple_symbol_supplier.lo \
src/processor/stackwalker.lo \ src/processor/stackwalker.lo \
src/processor/stackwalker_amd64.lo \
src/processor/stackwalker_ppc.lo \ src/processor/stackwalker_ppc.lo \
src/processor/stackwalker_sparc.lo \ src/processor/stackwalker_sparc.lo \
src/processor/stackwalker_x86.lo src/processor/stackwalker_x86.lo

23
Makefile.in
View file

@ -112,7 +112,9 @@ am_src_libbreakpad_la_OBJECTS = src/processor/basic_code_modules.lo \
src/processor/pathname_stripper.lo \ src/processor/pathname_stripper.lo \
src/processor/process_state.lo \ src/processor/process_state.lo \
src/processor/simple_symbol_supplier.lo \ src/processor/simple_symbol_supplier.lo \
src/processor/stackwalker.lo src/processor/stackwalker_ppc.lo \ src/processor/stackwalker.lo \
src/processor/stackwalker_amd64.lo \
src/processor/stackwalker_ppc.lo \
src/processor/stackwalker_sparc.lo \ src/processor/stackwalker_sparc.lo \
src/processor/stackwalker_x86.lo src/processor/stackwalker_x86.lo
src_libbreakpad_la_OBJECTS = $(am_src_libbreakpad_la_OBJECTS) src_libbreakpad_la_OBJECTS = $(am_src_libbreakpad_la_OBJECTS)
@ -156,6 +158,7 @@ src_processor_minidump_processor_unittest_DEPENDENCIES = \
src/processor/minidump_processor.lo src/processor/minidump.lo \ src/processor/minidump_processor.lo src/processor/minidump.lo \
src/processor/pathname_stripper.lo \ src/processor/pathname_stripper.lo \
src/processor/process_state.lo src/processor/stackwalker.lo \ src/processor/process_state.lo src/processor/stackwalker.lo \
src/processor/stackwalker_amd64.lo \
src/processor/stackwalker_ppc.lo \ src/processor/stackwalker_ppc.lo \
src/processor/stackwalker_sparc.lo \ src/processor/stackwalker_sparc.lo \
src/processor/stackwalker_x86.lo src/processor/stackwalker_x86.lo
@ -171,7 +174,9 @@ src_processor_minidump_stackwalk_DEPENDENCIES = \
src/processor/pathname_stripper.lo \ src/processor/pathname_stripper.lo \
src/processor/process_state.lo \ src/processor/process_state.lo \
src/processor/simple_symbol_supplier.lo \ src/processor/simple_symbol_supplier.lo \
src/processor/stackwalker.lo src/processor/stackwalker_ppc.lo \ src/processor/stackwalker.lo \
src/processor/stackwalker_amd64.lo \
src/processor/stackwalker_ppc.lo \
src/processor/stackwalker_sparc.lo \ src/processor/stackwalker_sparc.lo \
src/processor/stackwalker_x86.lo src/processor/stackwalker_x86.lo
am_src_processor_pathname_stripper_unittest_OBJECTS = \ am_src_processor_pathname_stripper_unittest_OBJECTS = \
@ -201,7 +206,9 @@ src_processor_stackwalker_selftest_DEPENDENCIES = \
src/processor/basic_source_line_resolver.lo \ src/processor/basic_source_line_resolver.lo \
src/processor/call_stack.lo src/processor/logging.lo \ src/processor/call_stack.lo src/processor/logging.lo \
src/processor/minidump.lo src/processor/pathname_stripper.lo \ src/processor/minidump.lo src/processor/pathname_stripper.lo \
src/processor/stackwalker.lo src/processor/stackwalker_ppc.lo \ src/processor/stackwalker.lo \
src/processor/stackwalker_amd64.lo \
src/processor/stackwalker_ppc.lo \
src/processor/stackwalker_sparc.lo \ src/processor/stackwalker_sparc.lo \
src/processor/stackwalker_x86.lo src/processor/stackwalker_x86.lo
SCRIPTS = $(noinst_SCRIPTS) SCRIPTS = $(noinst_SCRIPTS)
@ -425,6 +432,8 @@ src_libbreakpad_la_SOURCES = \
src/processor/simple_symbol_supplier.h \ src/processor/simple_symbol_supplier.h \
src/processor/stack_frame_info.h \ src/processor/stack_frame_info.h \
src/processor/stackwalker.cc \ src/processor/stackwalker.cc \
src/processor/stackwalker_amd64.cc \
src/processor/stackwalker_amd64.h \
src/processor/stackwalker_ppc.cc \ src/processor/stackwalker_ppc.cc \
src/processor/stackwalker_ppc.h \ src/processor/stackwalker_ppc.h \
src/processor/stackwalker_sparc.cc \ src/processor/stackwalker_sparc.cc \
@ -474,6 +483,7 @@ src_processor_minidump_processor_unittest_LDADD = \
src/processor/pathname_stripper.lo \ src/processor/pathname_stripper.lo \
src/processor/process_state.lo \ src/processor/process_state.lo \
src/processor/stackwalker.lo \ src/processor/stackwalker.lo \
src/processor/stackwalker_amd64.lo \
src/processor/stackwalker_ppc.lo \ src/processor/stackwalker_ppc.lo \
src/processor/stackwalker_sparc.lo \ src/processor/stackwalker_sparc.lo \
src/processor/stackwalker_x86.lo src/processor/stackwalker_x86.lo
@ -509,6 +519,7 @@ src_processor_stackwalker_selftest_LDADD = \
src/processor/minidump.lo \ src/processor/minidump.lo \
src/processor/pathname_stripper.lo \ src/processor/pathname_stripper.lo \
src/processor/stackwalker.lo \ src/processor/stackwalker.lo \
src/processor/stackwalker_amd64.lo \
src/processor/stackwalker_ppc.lo \ src/processor/stackwalker_ppc.lo \
src/processor/stackwalker_sparc.lo \ src/processor/stackwalker_sparc.lo \
src/processor/stackwalker_x86.lo src/processor/stackwalker_x86.lo
@ -537,6 +548,7 @@ src_processor_minidump_stackwalk_LDADD = \
src/processor/process_state.lo \ src/processor/process_state.lo \
src/processor/simple_symbol_supplier.lo \ src/processor/simple_symbol_supplier.lo \
src/processor/stackwalker.lo \ src/processor/stackwalker.lo \
src/processor/stackwalker_amd64.lo \
src/processor/stackwalker_ppc.lo \ src/processor/stackwalker_ppc.lo \
src/processor/stackwalker_sparc.lo \ src/processor/stackwalker_sparc.lo \
src/processor/stackwalker_x86.lo src/processor/stackwalker_x86.lo
@ -781,6 +793,8 @@ src/processor/simple_symbol_supplier.lo: \
src/processor/$(DEPDIR)/$(am__dirstamp) src/processor/$(DEPDIR)/$(am__dirstamp)
src/processor/stackwalker.lo: src/processor/$(am__dirstamp) \ src/processor/stackwalker.lo: src/processor/$(am__dirstamp) \
src/processor/$(DEPDIR)/$(am__dirstamp) src/processor/$(DEPDIR)/$(am__dirstamp)
src/processor/stackwalker_amd64.lo: src/processor/$(am__dirstamp) \
src/processor/$(DEPDIR)/$(am__dirstamp)
src/processor/stackwalker_ppc.lo: src/processor/$(am__dirstamp) \ src/processor/stackwalker_ppc.lo: src/processor/$(am__dirstamp) \
src/processor/$(DEPDIR)/$(am__dirstamp) src/processor/$(DEPDIR)/$(am__dirstamp)
src/processor/stackwalker_sparc.lo: src/processor/$(am__dirstamp) \ src/processor/stackwalker_sparc.lo: src/processor/$(am__dirstamp) \
@ -925,6 +939,8 @@ mostlyclean-compile:
-rm -f src/processor/simple_symbol_supplier.lo -rm -f src/processor/simple_symbol_supplier.lo
-rm -f src/processor/stackwalker.$(OBJEXT) -rm -f src/processor/stackwalker.$(OBJEXT)
-rm -f src/processor/stackwalker.lo -rm -f src/processor/stackwalker.lo
-rm -f src/processor/stackwalker_amd64.$(OBJEXT)
-rm -f src/processor/stackwalker_amd64.lo
-rm -f src/processor/stackwalker_ppc.$(OBJEXT) -rm -f src/processor/stackwalker_ppc.$(OBJEXT)
-rm -f src/processor/stackwalker_ppc.lo -rm -f src/processor/stackwalker_ppc.lo
-rm -f src/processor/stackwalker_selftest.$(OBJEXT) -rm -f src/processor/stackwalker_selftest.$(OBJEXT)
@ -955,6 +971,7 @@ distclean-compile:
@AMDEP_TRUE@@am__include@ @am__quote@src/processor/$(DEPDIR)/range_map_unittest.Po@am__quote@ @AMDEP_TRUE@@am__include@ @am__quote@src/processor/$(DEPDIR)/range_map_unittest.Po@am__quote@
@AMDEP_TRUE@@am__include@ @am__quote@src/processor/$(DEPDIR)/simple_symbol_supplier.Plo@am__quote@ @AMDEP_TRUE@@am__include@ @am__quote@src/processor/$(DEPDIR)/simple_symbol_supplier.Plo@am__quote@
@AMDEP_TRUE@@am__include@ @am__quote@src/processor/$(DEPDIR)/stackwalker.Plo@am__quote@ @AMDEP_TRUE@@am__include@ @am__quote@src/processor/$(DEPDIR)/stackwalker.Plo@am__quote@
@AMDEP_TRUE@@am__include@ @am__quote@src/processor/$(DEPDIR)/stackwalker_amd64.Plo@am__quote@
@AMDEP_TRUE@@am__include@ @am__quote@src/processor/$(DEPDIR)/stackwalker_ppc.Plo@am__quote@ @AMDEP_TRUE@@am__include@ @am__quote@src/processor/$(DEPDIR)/stackwalker_ppc.Plo@am__quote@
@AMDEP_TRUE@@am__include@ @am__quote@src/processor/$(DEPDIR)/stackwalker_selftest.Po@am__quote@ @AMDEP_TRUE@@am__include@ @am__quote@src/processor/$(DEPDIR)/stackwalker_selftest.Po@am__quote@
@AMDEP_TRUE@@am__include@ @am__quote@src/processor/$(DEPDIR)/stackwalker_sparc.Plo@am__quote@ @AMDEP_TRUE@@am__include@ @am__quote@src/processor/$(DEPDIR)/stackwalker_sparc.Plo@am__quote@

154
src/google_breakpad/common/minidump_format.h
View file

@ -215,6 +215,160 @@ typedef struct {
#define MD_CONTEXT_CPU_MASK 0xffffffc0 #define MD_CONTEXT_CPU_MASK 0xffffffc0
/*
* AMD64 support, see WINNT.H
*/
typedef struct {
u_int16_t control_word;
u_int16_t status_word;
u_int8_t tag_word;
u_int8_t reserved1;
u_int16_t error_opcode;
u_int32_t error_offset;
u_int16_t error_selector;
u_int16_t reserved2;
u_int32_t data_offset;
u_int16_t data_selector;
u_int16_t reserved3;
u_int32_t mx_csr;
u_int32_t mx_csr_mask;
u_int128_t float_registers[8];
u_int128_t xmm_registers[16];
u_int8_t reserved4[96];
} MDXmmSaveArea32AMD64; /* XMM_SAVE_AREA32 */
#define MD_CONTEXT_AMD64_VR_COUNT 26
typedef struct {
/*
* Register parameter home addresses.
*/
u_int64_t p1_home;
u_int64_t p2_home;
u_int64_t p3_home;
u_int64_t p4_home;
u_int64_t p5_home;
u_int64_t p6_home;
/* The next field determines the layout of the structure, and which parts
* of it are populated */
u_int32_t context_flags;
u_int32_t mx_csr;
/* The next register is included with MD_CONTEXT_AMD64_CONTROL */
u_int16_t cs;
/* The next 4 registers are included with MD_CONTEXT_AMD64_SEGMENTS */
u_int16_t ds;
u_int16_t es;
u_int16_t fs;
u_int16_t gs;
/* The next 2 registers are included with MD_CONTEXT_AMD64_CONTROL */
u_int16_t ss;
u_int32_t eflags;
/* The next 6 registers are included with MD_CONTEXT_AMD64_DEBUG_REGISTERS */
u_int64_t dr0;
u_int64_t dr1;
u_int64_t dr2;
u_int64_t dr3;
u_int64_t dr6;
u_int64_t dr7;
/* The next 4 registers are included with MD_CONTEXT_AMD64_INTEGER */
u_int64_t rax;
u_int64_t rcx;
u_int64_t rdx;
u_int64_t rbx;
/* The next register is included with MD_CONTEXT_AMD64_CONTROL */
u_int64_t rsp;
/* The next 11 registers are included with MD_CONTEXT_AMD64_INTEGER */
u_int64_t rbp;
u_int64_t rsi;
u_int64_t rdi;
u_int64_t r8;
u_int64_t r9;
u_int64_t r10;
u_int64_t r11;
u_int64_t r12;
u_int64_t r13;
u_int64_t r14;
u_int64_t r15;
/* The next register is included with MD_CONTEXT_AMD64_CONTROL */
u_int64_t rip;
/* The next set of registers are included with
* MD_CONTEXT_AMD64_FLOATING_POINT
*/
union {
MDXmmSaveArea32AMD64 flt_save;
struct {
u_int128_t header[2];
u_int128_t legacy[8];
u_int128_t xmm0;
u_int128_t xmm1;
u_int128_t xmm2;
u_int128_t xmm3;
u_int128_t xmm4;
u_int128_t xmm5;
u_int128_t xmm6;
u_int128_t xmm7;
u_int128_t xmm8;
u_int128_t xmm9;
u_int128_t xmm10;
u_int128_t xmm11;
u_int128_t xmm12;
u_int128_t xmm13;
u_int128_t xmm14;
u_int128_t xmm15;
} sse_registers;
};
u_int128_t vector_register[MD_CONTEXT_AMD64_VR_COUNT];
u_int64_t vector_control;
/* The next 5 registers are included with MD_CONTEXT_AMD64_DEBUG_REGISTERS */
u_int64_t debug_control;
u_int64_t last_branch_to_rip;
u_int64_t last_branch_from_rip;
u_int64_t last_exception_to_rip;
u_int64_t last_exception_from_rip;
} MDRawContextAMD64; /* CONTEXT */
/* For (MDRawContextAMD64).context_flags. These values indicate the type of
* context stored in the structure. The high 26 bits identify the CPU, the
* low 6 bits identify the type of context saved. */
#define MD_CONTEXT_AMD64_CONTROL (MD_CONTEXT_AMD64 | 0x00000001)
/* CONTEXT_CONTROL */
#define MD_CONTEXT_AMD64_INTEGER (MD_CONTEXT_AMD64 | 0x00000002)
/* CONTEXT_INTEGER */
#define MD_CONTEXT_AMD64_SEGMENTS (MD_CONTEXT_AMD64 | 0x00000004)
/* CONTEXT_SEGMENTS */
#define MD_CONTEXT_AMD64_FLOATING_POINT (MD_CONTEXT_AMD64 | 0x00000008)
/* CONTEXT_FLOATING_POINT */
#define MD_CONTEXT_AMD64_DEBUG_REGISTERS (MD_CONTEXT_AMD64 | 0x00000010)
/* CONTEXT_DEBUG_REGISTERS */
/* WinNT.h refers to CONTEXT_MMX_REGISTERS but doesn't appear to define it
* I think it really means CONTEXT_FLOATING_POINT.
*/
#define MD_CONTEXT_AMD64_FULL (MD_CONTEXT_AMD64_CONTROL | \
MD_CONTEXT_AMD64_INTEGER | \
MD_CONTEXT_AMD64_FLOATING_POINT)
/* CONTEXT_FULL */
#define MD_CONTEXT_AMD64_ALL (MD_CONTEXT_AMD64_FULL | \
MD_CONTEXT_AMD64_SEGMENTS | \
MD_CONTEXT_X86_DEBUG_REGISTERS)
/* CONTEXT_ALL */
/* /*
* SPARC support, see (solaris)sys/procfs_isa.h also * SPARC support, see (solaris)sys/procfs_isa.h also
*/ */

15
src/google_breakpad/processor/minidump.h
View file

@ -175,8 +175,9 @@ class MinidumpContext : public MinidumpStream {
// Returns raw CPU-specific context data for the named CPU type. If the // Returns raw CPU-specific context data for the named CPU type. If the
// context data does not match the CPU type or does not exist, returns // context data does not match the CPU type or does not exist, returns
// NULL. // NULL.
const MDRawContextX86* GetContextX86() const; const MDRawContextX86* GetContextX86() const;
const MDRawContextPPC* GetContextPPC() const; const MDRawContextPPC* GetContextPPC() const;
const MDRawContextAMD64* GetContextAMD64() const;
const MDRawContextSPARC* GetContextSPARC() const; const MDRawContextSPARC* GetContextSPARC() const;
// Print a human-readable representation of the object to stdout. // Print a human-readable representation of the object to stdout.
@ -200,11 +201,15 @@ class MinidumpContext : public MinidumpStream {
// not contain a system info stream. // not contain a system info stream.
bool CheckAgainstSystemInfo(u_int32_t context_cpu_type); bool CheckAgainstSystemInfo(u_int32_t context_cpu_type);
// Store this separately because of the weirdo AMD64 context
u_int32_t context_flags_;
// The CPU-specific context structure. // The CPU-specific context structure.
union { union {
MDRawContextBase* base; MDRawContextBase* base;
MDRawContextX86* x86; MDRawContextX86* x86;
MDRawContextPPC* ppc; MDRawContextPPC* ppc;
MDRawContextAMD64* amd64;
// on Solaris SPARC, sparc is defined as a numeric constant, // on Solaris SPARC, sparc is defined as a numeric constant,
// so variables can NOT be named as sparc // so variables can NOT be named as sparc
MDRawContextSPARC* ctx_sparc; MDRawContextSPARC* ctx_sparc;

26
src/google_breakpad/processor/stack_frame_cpu.h
View file

@ -98,6 +98,32 @@ struct StackFramePPC : public StackFrame {
int context_validity; int context_validity;
}; };
struct StackFrameAMD64 : public StackFrame {
// ContextValidity has one entry for each relevant hardware pointer register
// (%rip and %rsp) and one entry for each nonvolatile (callee-save) register.
//FIXME: validate this list
enum ContextValidity {
CONTEXT_VALID_NONE = 0,
CONTEXT_VALID_RIP = 1 << 0,
CONTEXT_VALID_RSP = 1 << 1,
CONTEXT_VALID_RBP = 1 << 2,
CONTEXT_VALID_ALL = -1
};
StackFrameAMD64() : context(), context_validity(CONTEXT_VALID_NONE) {}
// Register state. This is only fully valid for the topmost frame in a
// stack. In other frames, the values of nonvolatile registers may be
// present, given sufficient debugging information. Refer to
// context_validity.
MDRawContextAMD64 context;
// context_validity is actually ContextValidity, but int is used because
// the OR operator doesn't work well with enumerated types. This indicates
// which fields in context are valid.
int context_validity;
};
struct StackFrameSPARC : public StackFrame { struct StackFrameSPARC : public StackFrame {
// to be confirmed // to be confirmed
enum ContextValidity { enum ContextValidity {

585
src/processor/minidump.cc
View file

@ -271,6 +271,7 @@ MinidumpStream::MinidumpStream(Minidump* minidump)
MinidumpContext::MinidumpContext(Minidump* minidump) MinidumpContext::MinidumpContext(Minidump* minidump)
: MinidumpStream(minidump), : MinidumpStream(minidump),
context_flags_(0),
context_() { context_() {
} }
@ -286,233 +287,334 @@ bool MinidumpContext::Read(u_int32_t expected_size) {
FreeContext(); FreeContext();
// First, figure out what type of CPU this context structure is for. // First, figure out what type of CPU this context structure is for.
u_int32_t context_flags; // For some reason, the AMD64 Context doesn't have context_flags
if (!minidump_->ReadBytes(&context_flags, sizeof(context_flags))) { // at the beginning of the structure, so special case it here.
BPLOG(ERROR) << "MinidumpContext could not read context flags"; if (expected_size == sizeof(MDRawContextAMD64)) {
return false; BPLOG(INFO) << "MinidumpContext: looks like AMD64 context";
}
if (minidump_->swap())
Swap(&context_flags);
u_int32_t cpu_type = context_flags & MD_CONTEXT_CPU_MASK; scoped_ptr<MDRawContextAMD64> context_amd64(new MDRawContextAMD64());
if (!minidump_->ReadBytes(context_amd64.get(),
// Allocate the context structure for the correct CPU and fill it. The sizeof(MDRawContextAMD64))) {
// casts are slightly unorthodox, but it seems better to do that than to BPLOG(ERROR) << "MinidumpContext could not read amd64 context";
// maintain a separate pointer for each type of CPU context structure return false;
// when only one of them will be used.
switch (cpu_type) {
case MD_CONTEXT_X86: {
if (expected_size != sizeof(MDRawContextX86)) {
BPLOG(ERROR) << "MinidumpContext x86 size mismatch, " <<
expected_size << " != " << sizeof(MDRawContextX86);
return false;
}
scoped_ptr<MDRawContextX86> context_x86(new MDRawContextX86());
// Set the context_flags member, which has already been read, and
// read the rest of the structure beginning with the first member
// after context_flags.
context_x86->context_flags = context_flags;
size_t flags_size = sizeof(context_x86->context_flags);
u_int8_t* context_after_flags =
reinterpret_cast<u_int8_t*>(context_x86.get()) + flags_size;
if (!minidump_->ReadBytes(context_after_flags,
sizeof(MDRawContextX86) - flags_size)) {
BPLOG(ERROR) << "MinidumpContext could not read x86 context";
return false;
}
// Do this after reading the entire MDRawContext structure because
// GetSystemInfo may seek minidump to a new position.
if (!CheckAgainstSystemInfo(cpu_type)) {
BPLOG(ERROR) << "MinidumpContext x86 does not match system info";
return false;
}
if (minidump_->swap()) {
// context_x86->context_flags was already swapped.
Swap(&context_x86->dr0);
Swap(&context_x86->dr1);
Swap(&context_x86->dr2);
Swap(&context_x86->dr3);
Swap(&context_x86->dr6);
Swap(&context_x86->dr7);
Swap(&context_x86->float_save.control_word);
Swap(&context_x86->float_save.status_word);
Swap(&context_x86->float_save.tag_word);
Swap(&context_x86->float_save.error_offset);
Swap(&context_x86->float_save.error_selector);
Swap(&context_x86->float_save.data_offset);
Swap(&context_x86->float_save.data_selector);
// context_x86->float_save.register_area[] contains 8-bit quantities
// and does not need to be swapped.
Swap(&context_x86->float_save.cr0_npx_state);
Swap(&context_x86->gs);
Swap(&context_x86->fs);
Swap(&context_x86->es);
Swap(&context_x86->ds);
Swap(&context_x86->edi);
Swap(&context_x86->esi);
Swap(&context_x86->ebx);
Swap(&context_x86->edx);
Swap(&context_x86->ecx);
Swap(&context_x86->eax);
Swap(&context_x86->ebp);
Swap(&context_x86->eip);
Swap(&context_x86->cs);
Swap(&context_x86->eflags);
Swap(&context_x86->esp);
Swap(&context_x86->ss);
// context_x86->extended_registers[] contains 8-bit quantities and
// does not need to be swapped.
}
context_.x86 = context_x86.release();
break;
} }
case MD_CONTEXT_PPC: { if (minidump_->swap())
if (expected_size != sizeof(MDRawContextPPC)) { Swap(&context_amd64->context_flags);
BPLOG(ERROR) << "MinidumpContext ppc size mismatch, " <<
expected_size << " != " << sizeof(MDRawContextPPC);
return false;
}
scoped_ptr<MDRawContextPPC> context_ppc(new MDRawContextPPC()); u_int32_t cpu_type = context_amd64->context_flags & MD_CONTEXT_CPU_MASK;
// Set the context_flags member, which has already been read, and if (cpu_type != MD_CONTEXT_AMD64) {
// read the rest of the structure beginning with the first member //TODO: fall through to switch below?
// after context_flags. // need a Tell method to be able to SeekSet back to beginning
context_ppc->context_flags = context_flags; // http://code.google.com/p/google-breakpad/issues/detail?id=224
BPLOG(ERROR) << "MinidumpContext not actually amd64 context";
return false;
}
size_t flags_size = sizeof(context_ppc->context_flags); // Do this after reading the entire MDRawContext structure because
u_int8_t* context_after_flags = // GetSystemInfo may seek minidump to a new position.
reinterpret_cast<u_int8_t*>(context_ppc.get()) + flags_size; if (!CheckAgainstSystemInfo(cpu_type)) {
if (!minidump_->ReadBytes(context_after_flags, BPLOG(ERROR) << "MinidumpContext amd64 does not match system info";
sizeof(MDRawContextPPC) - flags_size)) { return false;
BPLOG(ERROR) << "MinidumpContext could not read ppc context"; }
return false;
}
// Do this after reading the entire MDRawContext structure because // Normalize the 128-bit types in the dump.
// GetSystemInfo may seek minidump to a new position. // Since this is AMD64, by definition, the values are little-endian.
if (!CheckAgainstSystemInfo(cpu_type)) { for (unsigned int vr_index = 0;
BPLOG(ERROR) << "MinidumpContext ppc does not match system info"; vr_index < MD_CONTEXT_AMD64_VR_COUNT;
return false; ++vr_index)
} Normalize128(&context_amd64->vector_register[vr_index], false);
if (minidump_->swap()) {
Swap(&context_amd64->p1_home);
Swap(&context_amd64->p2_home);
Swap(&context_amd64->p3_home);
Swap(&context_amd64->p4_home);
Swap(&context_amd64->p5_home);
Swap(&context_amd64->p6_home);
// context_flags is already swapped
Swap(&context_amd64->mx_csr);
Swap(&context_amd64->cs);
Swap(&context_amd64->ds);
Swap(&context_amd64->es);
Swap(&context_amd64->fs);
Swap(&context_amd64->ss);
Swap(&context_amd64->eflags);
Swap(&context_amd64->dr0);
Swap(&context_amd64->dr1);
Swap(&context_amd64->dr2);
Swap(&context_amd64->dr3);
Swap(&context_amd64->dr6);
Swap(&context_amd64->dr7);
Swap(&context_amd64->rax);
Swap(&context_amd64->rcx);
Swap(&context_amd64->rdx);
Swap(&context_amd64->rbx);
Swap(&context_amd64->rsp);
Swap(&context_amd64->rbp);
Swap(&context_amd64->rsi);
Swap(&context_amd64->rdi);
Swap(&context_amd64->r8);
Swap(&context_amd64->r9);
Swap(&context_amd64->r10);
Swap(&context_amd64->r11);
Swap(&context_amd64->r12);
Swap(&context_amd64->r13);
Swap(&context_amd64->r14);
Swap(&context_amd64->r15);
Swap(&context_amd64->rip);
//FIXME: I'm not sure what actually determines
// which member of the union {flt_save, sse_registers}
// is valid. We're not currently using either,
// but it would be good to have them swapped properly.
// Normalize the 128-bit types in the dump.
// Since this is PowerPC, by definition, the values are big-endian.
for (unsigned int vr_index = 0; for (unsigned int vr_index = 0;
vr_index < MD_VECTORSAVEAREA_PPC_VR_COUNT; vr_index < MD_CONTEXT_AMD64_VR_COUNT;
++vr_index) { ++vr_index)
Normalize128(&context_ppc->vector_save.save_vr[vr_index], true); Swap(&context_amd64->vector_register[vr_index]);
Swap(&context_amd64->vector_control);
Swap(&context_amd64->debug_control);
Swap(&context_amd64->last_branch_to_rip);
Swap(&context_amd64->last_branch_from_rip);
Swap(&context_amd64->last_exception_to_rip);
Swap(&context_amd64->last_exception_from_rip);
}
context_flags_ = context_amd64->context_flags;
context_.amd64 = context_amd64.release();
}
else {
u_int32_t context_flags;
if (!minidump_->ReadBytes(&context_flags, sizeof(context_flags))) {
BPLOG(ERROR) << "MinidumpContext could not read context flags";
return false;
}
if (minidump_->swap())
Swap(&context_flags);
u_int32_t cpu_type = context_flags & MD_CONTEXT_CPU_MASK;
// Allocate the context structure for the correct CPU and fill it. The
// casts are slightly unorthodox, but it seems better to do that than to
// maintain a separate pointer for each type of CPU context structure
// when only one of them will be used.
switch (cpu_type) {
case MD_CONTEXT_X86: {
if (expected_size != sizeof(MDRawContextX86)) {
BPLOG(ERROR) << "MinidumpContext x86 size mismatch, " <<
expected_size << " != " << sizeof(MDRawContextX86);
return false;
}
scoped_ptr<MDRawContextX86> context_x86(new MDRawContextX86());
// Set the context_flags member, which has already been read, and
// read the rest of the structure beginning with the first member
// after context_flags.
context_x86->context_flags = context_flags;
size_t flags_size = sizeof(context_x86->context_flags);
u_int8_t* context_after_flags =
reinterpret_cast<u_int8_t*>(context_x86.get()) + flags_size;
if (!minidump_->ReadBytes(context_after_flags,
sizeof(MDRawContextX86) - flags_size)) {
BPLOG(ERROR) << "MinidumpContext could not read x86 context";
return false;
}
// Do this after reading the entire MDRawContext structure because
// GetSystemInfo may seek minidump to a new position.
if (!CheckAgainstSystemInfo(cpu_type)) {
BPLOG(ERROR) << "MinidumpContext x86 does not match system info";
return false;
}
if (minidump_->swap()) {
// context_x86->context_flags was already swapped.
Swap(&context_x86->dr0);
Swap(&context_x86->dr1);
Swap(&context_x86->dr2);
Swap(&context_x86->dr3);
Swap(&context_x86->dr6);
Swap(&context_x86->dr7);
Swap(&context_x86->float_save.control_word);
Swap(&context_x86->float_save.status_word);
Swap(&context_x86->float_save.tag_word);
Swap(&context_x86->float_save.error_offset);
Swap(&context_x86->float_save.error_selector);
Swap(&context_x86->float_save.data_offset);
Swap(&context_x86->float_save.data_selector);
// context_x86->float_save.register_area[] contains 8-bit quantities
// and does not need to be swapped.
Swap(&context_x86->float_save.cr0_npx_state);
Swap(&context_x86->gs);
Swap(&context_x86->fs);
Swap(&context_x86->es);
Swap(&context_x86->ds);
Swap(&context_x86->edi);
Swap(&context_x86->esi);
Swap(&context_x86->ebx);
Swap(&context_x86->edx);
Swap(&context_x86->ecx);
Swap(&context_x86->eax);
Swap(&context_x86->ebp);
Swap(&context_x86->eip);
Swap(&context_x86->cs);
Swap(&context_x86->eflags);
Swap(&context_x86->esp);
Swap(&context_x86->ss);
// context_x86->extended_registers[] contains 8-bit quantities and
// does not need to be swapped.
}
context_.x86 = context_x86.release();
break;
} }
if (minidump_->swap()) { case MD_CONTEXT_PPC: {
// context_ppc->context_flags was already swapped. if (expected_size != sizeof(MDRawContextPPC)) {
Swap(&context_ppc->srr0); BPLOG(ERROR) << "MinidumpContext ppc size mismatch, " <<
Swap(&context_ppc->srr1); expected_size << " != " << sizeof(MDRawContextPPC);
for (unsigned int gpr_index = 0; return false;
gpr_index < MD_CONTEXT_PPC_GPR_COUNT;
++gpr_index) {
Swap(&context_ppc->gpr[gpr_index]);
} }
Swap(&context_ppc->cr);
Swap(&context_ppc->xer); scoped_ptr<MDRawContextPPC> context_ppc(new MDRawContextPPC());
Swap(&context_ppc->lr);
Swap(&context_ppc->ctr); // Set the context_flags member, which has already been read, and
Swap(&context_ppc->mq); // read the rest of the structure beginning with the first member
Swap(&context_ppc->vrsave); // after context_flags.
for (unsigned int fpr_index = 0; context_ppc->context_flags = context_flags;
fpr_index < MD_FLOATINGSAVEAREA_PPC_FPR_COUNT;
++fpr_index) { size_t flags_size = sizeof(context_ppc->context_flags);
Swap(&context_ppc->float_save.fpregs[fpr_index]); u_int8_t* context_after_flags =
reinterpret_cast<u_int8_t*>(context_ppc.get()) + flags_size;
if (!minidump_->ReadBytes(context_after_flags,
sizeof(MDRawContextPPC) - flags_size)) {
BPLOG(ERROR) << "MinidumpContext could not read ppc context";
return false;
} }
// Don't swap context_ppc->float_save.fpscr_pad because it is only
// used for padding. // Do this after reading the entire MDRawContext structure because
Swap(&context_ppc->float_save.fpscr); // GetSystemInfo may seek minidump to a new position.
if (!CheckAgainstSystemInfo(cpu_type)) {
BPLOG(ERROR) << "MinidumpContext ppc does not match system info";
return false;
}
// Normalize the 128-bit types in the dump.
// Since this is PowerPC, by definition, the values are big-endian.
for (unsigned int vr_index = 0; for (unsigned int vr_index = 0;
vr_index < MD_VECTORSAVEAREA_PPC_VR_COUNT; vr_index < MD_VECTORSAVEAREA_PPC_VR_COUNT;
++vr_index) { ++vr_index) {
Swap(&context_ppc->vector_save.save_vr[vr_index]); Normalize128(&context_ppc->vector_save.save_vr[vr_index], true);
} }
Swap(&context_ppc->vector_save.save_vscr);
// Don't swap the padding fields in vector_save.
Swap(&context_ppc->vector_save.save_vrvalid);
}
context_.ppc = context_ppc.release(); if (minidump_->swap()) {
// context_ppc->context_flags was already swapped.
break; Swap(&context_ppc->srr0);
} Swap(&context_ppc->srr1);
for (unsigned int gpr_index = 0;
case MD_CONTEXT_SPARC: { gpr_index < MD_CONTEXT_PPC_GPR_COUNT;
if (expected_size != sizeof(MDRawContextSPARC)) { ++gpr_index) {
BPLOG(ERROR) << "MinidumpContext sparc size mismatch, " << Swap(&context_ppc->gpr[gpr_index]);
expected_size << " != " << sizeof(MDRawContextSPARC); }
return false; Swap(&context_ppc->cr);
} Swap(&context_ppc->xer);
Swap(&context_ppc->lr);
scoped_ptr<MDRawContextSPARC> context_sparc(new MDRawContextSPARC()); Swap(&context_ppc->ctr);
Swap(&context_ppc->mq);
// Set the context_flags member, which has already been read, and Swap(&context_ppc->vrsave);
// read the rest of the structure beginning with the first member for (unsigned int fpr_index = 0;
// after context_flags. fpr_index < MD_FLOATINGSAVEAREA_PPC_FPR_COUNT;
context_sparc->context_flags = context_flags; ++fpr_index) {
Swap(&context_ppc->float_save.fpregs[fpr_index]);
size_t flags_size = sizeof(context_sparc->context_flags); }
u_int8_t* context_after_flags = // Don't swap context_ppc->float_save.fpscr_pad because it is only
reinterpret_cast<u_int8_t*>(context_sparc.get()) + flags_size; // used for padding.
if (!minidump_->ReadBytes(context_after_flags, Swap(&context_ppc->float_save.fpscr);
sizeof(MDRawContextSPARC) - flags_size)) { for (unsigned int vr_index = 0;
BPLOG(ERROR) << "MinidumpContext could not read sparc context"; vr_index < MD_VECTORSAVEAREA_PPC_VR_COUNT;
return false; ++vr_index) {
} Swap(&context_ppc->vector_save.save_vr[vr_index]);
}
// Do this after reading the entire MDRawContext structure because Swap(&context_ppc->vector_save.save_vscr);
// GetSystemInfo may seek minidump to a new position. // Don't swap the padding fields in vector_save.
if (!CheckAgainstSystemInfo(cpu_type)) { Swap(&context_ppc->vector_save.save_vrvalid);
BPLOG(ERROR) << "MinidumpContext sparc does not match system info";
return false;
}
if (minidump_->swap()) {
// context_sparc->context_flags was already swapped.
for (unsigned int gpr_index = 0;
gpr_index < MD_CONTEXT_SPARC_GPR_COUNT;
++gpr_index) {
Swap(&context_sparc->g_r[gpr_index]);
} }
Swap(&context_sparc->ccr);
Swap(&context_sparc->pc); context_.ppc = context_ppc.release();
Swap(&context_sparc->npc);
Swap(&context_sparc->y); break;
Swap(&context_sparc->asi);
Swap(&context_sparc->fprs);
for (unsigned int fpr_index = 0;
fpr_index < MD_FLOATINGSAVEAREA_SPARC_FPR_COUNT;
++fpr_index) {
Swap(&context_sparc->float_save.regs[fpr_index]);
}
Swap(&context_sparc->float_save.filler);
Swap(&context_sparc->float_save.fsr);
} }
context_.ctx_sparc = context_sparc.release();
break; case MD_CONTEXT_SPARC: {
} if (expected_size != sizeof(MDRawContextSPARC)) {
BPLOG(ERROR) << "MinidumpContext sparc size mismatch, " <<
expected_size << " != " << sizeof(MDRawContextSPARC);
return false;
}
default: { scoped_ptr<MDRawContextSPARC> context_sparc(new MDRawContextSPARC());
// Unknown context type
BPLOG(ERROR) << "MinidumpContext unknown context type " << // Set the context_flags member, which has already been read, and
HexString(cpu_type); // read the rest of the structure beginning with the first member
return false; // after context_flags.
break; context_sparc->context_flags = context_flags;
size_t flags_size = sizeof(context_sparc->context_flags);
u_int8_t* context_after_flags =
reinterpret_cast<u_int8_t*>(context_sparc.get()) + flags_size;
if (!minidump_->ReadBytes(context_after_flags,
sizeof(MDRawContextSPARC) - flags_size)) {
BPLOG(ERROR) << "MinidumpContext could not read sparc context";
return false;
}
// Do this after reading the entire MDRawContext structure because
// GetSystemInfo may seek minidump to a new position.
if (!CheckAgainstSystemInfo(cpu_type)) {
BPLOG(ERROR) << "MinidumpContext sparc does not match system info";
return false;
}
if (minidump_->swap()) {
// context_sparc->context_flags was already swapped.
for (unsigned int gpr_index = 0;
gpr_index < MD_CONTEXT_SPARC_GPR_COUNT;
++gpr_index) {
Swap(&context_sparc->g_r[gpr_index]);
}
Swap(&context_sparc->ccr);
Swap(&context_sparc->pc);
Swap(&context_sparc->npc);
Swap(&context_sparc->y);
Swap(&context_sparc->asi);
Swap(&context_sparc->fprs);
for (unsigned int fpr_index = 0;
fpr_index < MD_FLOATINGSAVEAREA_SPARC_FPR_COUNT;
++fpr_index) {
Swap(&context_sparc->float_save.regs[fpr_index]);
}
Swap(&context_sparc->float_save.filler);
Swap(&context_sparc->float_save.fsr);
}
context_.ctx_sparc = context_sparc.release();
break;
}
default: {
// Unknown context type
BPLOG(ERROR) << "MinidumpContext unknown context type " <<
HexString(cpu_type);
return false;
break;
}
} }
context_flags_ = context_flags;
} }
valid_ = true; valid_ = true;
@ -527,7 +629,7 @@ u_int32_t MinidumpContext::GetContextCPU() const {
return 0; return 0;
} }
return context_.base->context_flags & MD_CONTEXT_CPU_MASK; return context_flags_ & MD_CONTEXT_CPU_MASK;
} }
@ -550,6 +652,15 @@ const MDRawContextPPC* MinidumpContext::GetContextPPC() const {
return context_.ppc; return context_.ppc;
} }
const MDRawContextAMD64* MinidumpContext::GetContextAMD64() const {
if (GetContextCPU() != MD_CONTEXT_AMD64) {
BPLOG(ERROR) << "MinidumpContext cannot get amd64 context";
return NULL;
}
return context_.amd64;
}
const MDRawContextSPARC* MinidumpContext::GetContextSPARC() const { const MDRawContextSPARC* MinidumpContext::GetContextSPARC() const {
if (GetContextCPU() != MD_CONTEXT_SPARC) { if (GetContextCPU() != MD_CONTEXT_SPARC) {
BPLOG(ERROR) << "MinidumpContext cannot get sparc context"; BPLOG(ERROR) << "MinidumpContext cannot get sparc context";
@ -569,6 +680,10 @@ void MinidumpContext::FreeContext() {
delete context_.ppc; delete context_.ppc;
break; break;
case MD_CONTEXT_AMD64:
delete context_.amd64;
break;
case MD_CONTEXT_SPARC: case MD_CONTEXT_SPARC:
delete context_.ctx_sparc; delete context_.ctx_sparc;
break; break;
@ -580,6 +695,7 @@ void MinidumpContext::FreeContext() {
break; break;
} }
context_flags_ = 0;
context_.base = NULL; context_.base = NULL;
} }
@ -621,6 +737,11 @@ bool MinidumpContext::CheckAgainstSystemInfo(u_int32_t context_cpu_type) {
return_value = true; return_value = true;
break; break;
case MD_CONTEXT_AMD64:
if (system_info_cpu_type == MD_CPU_ARCHITECTURE_AMD64)
return_value = true;
break;
case MD_CONTEXT_SPARC: case MD_CONTEXT_SPARC:
if (system_info_cpu_type == MD_CPU_ARCHITECTURE_SPARC) if (system_info_cpu_type == MD_CPU_ARCHITECTURE_SPARC)
return_value = true; return_value = true;
@ -745,6 +866,60 @@ void MinidumpContext::Print() {
break; break;
} }
case MD_CONTEXT_AMD64: {
const MDRawContextAMD64* context_amd64 = GetContextAMD64();
printf("MDRawContextAMD64\n");
printf(" p1_home = 0x%llx\n",
context_amd64->p1_home);
printf(" p2_home = 0x%llx\n",
context_amd64->p2_home);
printf(" p3_home = 0x%llx\n",
context_amd64->p3_home);
printf(" p4_home = 0x%llx\n",
context_amd64->p4_home);
printf(" p5_home = 0x%llx\n",
context_amd64->p5_home);
printf(" p6_home = 0x%llx\n",
context_amd64->p6_home);
printf(" context_flags = 0x%x\n",
context_amd64->context_flags);
printf(" mx_csr = 0x%x\n",
context_amd64->mx_csr);
printf(" cs = 0x%x\n", context_amd64->cs);
printf(" ds = 0x%x\n", context_amd64->ds);
printf(" es = 0x%x\n", context_amd64->es);
printf(" fs = 0x%x\n", context_amd64->fs);
printf(" gs = 0x%x\n", context_amd64->gs);
printf(" ss = 0x%x\n", context_amd64->ss);
printf(" eflags = 0x%x\n", context_amd64->eflags);
printf(" dr0 = 0x%llx\n", context_amd64->dr0);
printf(" dr1 = 0x%llx\n", context_amd64->dr1);
printf(" dr2 = 0x%llx\n", context_amd64->dr2);
printf(" dr3 = 0x%llx\n", context_amd64->dr3);
printf(" dr6 = 0x%llx\n", context_amd64->dr6);
printf(" dr7 = 0x%llx\n", context_amd64->dr7);
printf(" rax = 0x%llx\n", context_amd64->rax);
printf(" rcx = 0x%llx\n", context_amd64->rcx);
printf(" rdx = 0x%llx\n", context_amd64->rdx);
printf(" rbx = 0x%llx\n", context_amd64->rbx);
printf(" rsp = 0x%llx\n", context_amd64->rsp);
printf(" rbp = 0x%llx\n", context_amd64->rbp);
printf(" rsi = 0x%llx\n", context_amd64->rsi);
printf(" rdi = 0x%llx\n", context_amd64->rdi);
printf(" r8 = 0x%llx\n", context_amd64->r8);
printf(" r9 = 0x%llx\n", context_amd64->r9);
printf(" r10 = 0x%llx\n", context_amd64->r10);
printf(" r11 = 0x%llx\n", context_amd64->r11);
printf(" r12 = 0x%llx\n", context_amd64->r12);
printf(" r13 = 0x%llx\n", context_amd64->r13);
printf(" r14 = 0x%llx\n", context_amd64->r14);
printf(" r15 = 0x%llx\n", context_amd64->r15);
printf(" rip = 0x%llx\n", context_amd64->rip);
//TODO: print xmm, vector, debug registers
printf("\n");
break;
}
case MD_CONTEXT_SPARC: { case MD_CONTEXT_SPARC: {
const MDRawContextSPARC* context_sparc = GetContextSPARC(); const MDRawContextSPARC* context_sparc = GetContextSPARC();
printf("MDRawContextSPARC\n"); printf("MDRawContextSPARC\n");

10
src/processor/minidump_processor.cc
View file

@ -258,8 +258,14 @@ bool MinidumpProcessor::GetCPUInfo(Minidump *dump, SystemInfo *info) {
return false; return false;
switch (raw_system_info->processor_architecture) { switch (raw_system_info->processor_architecture) {
case MD_CPU_ARCHITECTURE_X86: { case MD_CPU_ARCHITECTURE_X86:
info->cpu = "x86"; case MD_CPU_ARCHITECTURE_AMD64: {
if (raw_system_info->processor_architecture ==
MD_CPU_ARCHITECTURE_X86)
info->cpu = "x86";
else
info->cpu = "amd64";
const string *cpu_vendor = system_info->GetCPUVendor(); const string *cpu_vendor = system_info->GetCPUVendor();
if (cpu_vendor) { if (cpu_vendor) {
info->cpu_info = *cpu_vendor; info->cpu_info = *cpu_vendor;

12
src/processor/minidump_stackwalk.cc
View file

@ -68,6 +68,7 @@ using google_breakpad::StackFrame;
using google_breakpad::StackFramePPC; using google_breakpad::StackFramePPC;
using google_breakpad::StackFrameSPARC; using google_breakpad::StackFrameSPARC;
using google_breakpad::StackFrameX86; using google_breakpad::StackFrameX86;
using google_breakpad::StackFrameAMD64;
// Separator character for machine readable output. // Separator character for machine readable output.
static const char kOutputSeparator = '|'; static const char kOutputSeparator = '|';
@ -165,6 +166,16 @@ static void PrintStack(const CallStack *stack, const string &cpu) {
sequence = PrintRegister("srr0", frame_ppc->context.srr0, sequence); sequence = PrintRegister("srr0", frame_ppc->context.srr0, sequence);
if (frame_ppc->context_validity & StackFramePPC::CONTEXT_VALID_GPR1) if (frame_ppc->context_validity & StackFramePPC::CONTEXT_VALID_GPR1)
sequence = PrintRegister("r1", frame_ppc->context.gpr[1], sequence); sequence = PrintRegister("r1", frame_ppc->context.gpr[1], sequence);
} else if (cpu == "amd64") {
const StackFrameAMD64 *frame_amd64 =
reinterpret_cast<const StackFrameAMD64*>(frame);
if (frame_amd64->context_validity & StackFrameAMD64::CONTEXT_VALID_RIP)
sequence = PrintRegister("rip", frame_amd64->context.rip, sequence);
if (frame_amd64->context_validity & StackFrameAMD64::CONTEXT_VALID_RSP)
sequence = PrintRegister("rsp", frame_amd64->context.rsp, sequence);
if (frame_amd64->context_validity & StackFrameAMD64::CONTEXT_VALID_RBP)
sequence = PrintRegister("rbp", frame_amd64->context.rbp, sequence);
} else if (cpu == "sparc") { } else if (cpu == "sparc") {
const StackFrameSPARC *frame_sparc = const StackFrameSPARC *frame_sparc =
reinterpret_cast<const StackFrameSPARC*>(frame); reinterpret_cast<const StackFrameSPARC*>(frame);
@ -176,7 +187,6 @@ static void PrintStack(const CallStack *stack, const string &cpu) {
if (frame_sparc->context_validity & StackFrameSPARC::CONTEXT_VALID_PC) if (frame_sparc->context_validity & StackFrameSPARC::CONTEXT_VALID_PC)
sequence = PrintRegister("pc", frame_sparc->context.pc, sequence); sequence = PrintRegister("pc", frame_sparc->context.pc, sequence);
} }
printf("\n"); printf("\n");
} }
} }

8
src/processor/stackwalker.cc
View file

@ -51,6 +51,7 @@
#include "processor/stackwalker_ppc.h" #include "processor/stackwalker_ppc.h"
#include "processor/stackwalker_sparc.h" #include "processor/stackwalker_sparc.h"
#include "processor/stackwalker_x86.h" #include "processor/stackwalker_x86.h"
#include "processor/stackwalker_amd64.h"
namespace google_breakpad { namespace google_breakpad {
@ -164,6 +165,13 @@ Stackwalker* Stackwalker::StackwalkerForCPU(
memory, modules, supplier, memory, modules, supplier,
resolver); resolver);
break; break;
case MD_CONTEXT_AMD64:
cpu_stackwalker = new StackwalkerAMD64(system_info,
context->GetContextAMD64(),
memory, modules, supplier,
resolver);
break;
case MD_CONTEXT_SPARC: case MD_CONTEXT_SPARC:
cpu_stackwalker = new StackwalkerSPARC(system_info, cpu_stackwalker = new StackwalkerSPARC(system_info,

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// Copyright (c) 2007, Google Inc.
// All rights reserved.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
// * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
// * Redistributions in binary form must reproduce the above
// copyright notice, this list of conditions and the following disclaimer
// in the documentation and/or other materials provided with the
// distribution.
// * Neither the name of Google Inc. nor the names of its
// contributors may be used to endorse or promote products derived from
// this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
// stackwalker_amd64.cc: amd64-specific stackwalker.
//
// See stackwalker_amd64.h for documentation.
//
// Author: Mark Mentovai, Ted Mielczarek
#include "processor/stackwalker_amd64.h"
#include "google_breakpad/processor/call_stack.h"
#include "google_breakpad/processor/memory_region.h"
#include "google_breakpad/processor/stack_frame_cpu.h"
#include "processor/logging.h"
namespace google_breakpad {
StackwalkerAMD64::StackwalkerAMD64(const SystemInfo *system_info,
const MDRawContextAMD64 *context,
MemoryRegion *memory,
const CodeModules *modules,
SymbolSupplier *supplier,
SourceLineResolverInterface *resolver)
: Stackwalker(system_info, memory, modules, supplier, resolver),
context_(context) {
}
StackFrame* StackwalkerAMD64::GetContextFrame() {
if (!context_ || !memory_) {
BPLOG(ERROR) << "Can't get context frame without context or memory";
return NULL;
}
StackFrameAMD64 *frame = new StackFrameAMD64();
// The instruction pointer is stored directly in a register, so pull it
// straight out of the CPU context structure.
frame->context = *context_;
frame->context_validity = StackFrameAMD64::CONTEXT_VALID_ALL;
frame->instruction = frame->context.rip;
return frame;
}
StackFrame* StackwalkerAMD64::GetCallerFrame(
const CallStack *stack,
const vector< linked_ptr<StackFrameInfo> > &stack_frame_info) {
if (!memory_ || !stack) {
BPLOG(ERROR) << "Can't get caller frame without memory or stack";
return NULL;
}
StackFrameAMD64 *last_frame = static_cast<StackFrameAMD64*>(
stack->frames()->back());
//FIXME: this pretty much doesn't work at all due to FPO
// being enabled by default.
// Brain-dead stackwalking:
// %rip_new = *(%rbp_old + 8)
// %rsp_new = %rbp_old + 16
// %rbp_new = *(%rbp_old)
// A caller frame must reside higher in memory than its callee frames.
// Anything else is an error, or an indication that we've reached the
// end of the stack.
u_int64_t stack_pointer = last_frame->context.rbp + 16;
if (stack_pointer <= last_frame->context.rsp) {
return NULL;
}
u_int64_t instruction;
if (!memory_->GetMemoryAtAddress(last_frame->context.rbp + 8,
&instruction) ||
instruction <= 1) {
return NULL;
}
u_int64_t stack_base;
if (!memory_->GetMemoryAtAddress(last_frame->context.rbp,
&stack_base) ||
stack_base <= 1) {
return NULL;
}
StackFrameAMD64 *frame = new StackFrameAMD64();
frame->context = last_frame->context;
frame->context.rip = instruction;
frame->context.rsp = stack_pointer;
frame->context.rbp = stack_base;
frame->context_validity = StackFrameAMD64::CONTEXT_VALID_RIP |
StackFrameAMD64::CONTEXT_VALID_RSP |
StackFrameAMD64::CONTEXT_VALID_RBP;
frame->instruction = frame->context.rip - 1;
return frame;
}
} // namespace google_breakpad

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// Copyright (c) 2007, Google Inc.
// All rights reserved.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
// * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
// * Redistributions in binary form must reproduce the above
// copyright notice, this list of conditions and the following disclaimer
// in the documentation and/or other materials provided with the
// distribution.
// * Neither the name of Google Inc. nor the names of its
// contributors may be used to endorse or promote products derived from
// this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
// stackwalker_amd64.h: amd64-specific stackwalker.
//
// Provides stack frames given amd64 register context and a memory region
// corresponding to a amd64 stack.
//
// Author: Mark Mentovai, Ted Mielczarek
#ifndef PROCESSOR_STACKWALKER_AMD64_H__
#define PROCESSOR_STACKWALKER_AMD64_H__
#include "google_breakpad/common/breakpad_types.h"
#include "google_breakpad/common/minidump_format.h"
#include "google_breakpad/processor/stackwalker.h"
namespace google_breakpad {
class CodeModules;
class StackwalkerAMD64 : public Stackwalker {
public:
// context is a amd64 context object that gives access to amd64-specific
// register state corresponding to the innermost called frame to be
// included in the stack. The other arguments are passed directly through
// to the base Stackwalker constructor.
StackwalkerAMD64(const SystemInfo *system_info,
const MDRawContextAMD64 *context,
MemoryRegion *memory,
const CodeModules *modules,
SymbolSupplier *supplier,
SourceLineResolverInterface *resolver);
private:
// Implementation of Stackwalker, using amd64 context (stack pointer in %rsp,
// stack base in %rbp) and stack conventions (saved stack pointer at 0(%rbp))
virtual StackFrame* GetContextFrame();
virtual StackFrame* GetCallerFrame(
const CallStack *stack,
const vector< linked_ptr<StackFrameInfo> > &stack_frame_info);
// Stores the CPU context corresponding to the innermost stack frame to
// be returned by GetContextFrame.
const MDRawContextAMD64 *context_;
};
} // namespace google_breakpad
#endif // PROCESSOR_STACKWALKER_AMD64_H__