mirror of
https://gitlab.winehq.org/wine/wine-gecko.git
synced 2024-09-13 09:24:08 -07:00
94 lines
4.3 KiB
Diff
94 lines
4.3 KiB
Diff
commit 8885dea3716170ec7f3b213421c330f31cd5ac4b
|
|
Author: Jed Davis <jld@mozilla.com>
|
|
Date: Mon May 19 15:41:28 2014 -0700
|
|
|
|
Bug 942290: Merge ARM exidx info with DWARF if both are present.
|
|
|
|
diff --git a/toolkit/crashreporter/google-breakpad/src/common/arm_ex_reader.cc b/toolkit/crashreporter/google-breakpad/src/common/arm_ex_reader.cc
|
|
index 5d87ab4..97f99e4 100644
|
|
--- a/toolkit/crashreporter/google-breakpad/src/common/arm_ex_reader.cc
|
|
+++ b/toolkit/crashreporter/google-breakpad/src/common/arm_ex_reader.cc
|
|
@@ -487,14 +487,16 @@ void ExceptionTableInfo::Start()
|
|
// create CFI entries that Breakpad can use. This can also fail.
|
|
// First, add a new stack frame entry, into which ExtabEntryDecode
|
|
// will write the CFI entries.
|
|
- handler_->AddStackFrame(addr, next_addr - addr);
|
|
- int ret = ExtabEntryDecode(buf, buf_used);
|
|
- if (ret < 0) {
|
|
- handler_->DeleteStackFrame();
|
|
- BPLOG(INFO) << "ExtabEntryDecode: failed with error code: " << ret;
|
|
- continue;
|
|
+ if (!handler_->HasStackFrame(addr, next_addr - addr)) {
|
|
+ handler_->AddStackFrame(addr, next_addr - addr);
|
|
+ int ret = ExtabEntryDecode(buf, buf_used);
|
|
+ if (ret < 0) {
|
|
+ handler_->DeleteStackFrame();
|
|
+ BPLOG(INFO) << "ExtabEntryDecode: failed with error code: " << ret;
|
|
+ continue;
|
|
+ }
|
|
+ handler_->SubmitStackFrame();
|
|
}
|
|
- handler_->SubmitStackFrame();
|
|
|
|
} /* iterating over .exidx */
|
|
}
|
|
diff --git a/toolkit/crashreporter/google-breakpad/src/common/arm_ex_to_module.cc b/toolkit/crashreporter/google-breakpad/src/common/arm_ex_to_module.cc
|
|
index f8535b7..b5e3b06 100644
|
|
--- a/toolkit/crashreporter/google-breakpad/src/common/arm_ex_to_module.cc
|
|
+++ b/toolkit/crashreporter/google-breakpad/src/common/arm_ex_to_module.cc
|
|
@@ -162,6 +162,21 @@ int ARMExToModule::TranslateCmd(const struct extab_data* edata,
|
|
return ret;
|
|
}
|
|
|
|
+bool ARMExToModule::HasStackFrame(uintptr_t addr, size_t size) {
|
|
+ // Invariant: the range [addr,covered) is covered by existing stack
|
|
+ // frame entries.
|
|
+ uintptr_t covered = addr;
|
|
+ while (covered < addr + size) {
|
|
+ const Module::StackFrameEntry *old_entry =
|
|
+ module_->FindStackFrameEntryByAddress(covered);
|
|
+ if (!old_entry) {
|
|
+ return false;
|
|
+ }
|
|
+ covered = old_entry->address + old_entry->size;
|
|
+ }
|
|
+ return true;
|
|
+}
|
|
+
|
|
void ARMExToModule::AddStackFrame(uintptr_t addr, size_t size) {
|
|
stack_frame_entry_ = new Module::StackFrameEntry;
|
|
stack_frame_entry_->address = addr;
|
|
diff --git a/toolkit/crashreporter/google-breakpad/src/common/arm_ex_to_module.h b/toolkit/crashreporter/google-breakpad/src/common/arm_ex_to_module.h
|
|
index 73c936c..9d6a879 100644
|
|
--- a/toolkit/crashreporter/google-breakpad/src/common/arm_ex_to_module.h
|
|
+++ b/toolkit/crashreporter/google-breakpad/src/common/arm_ex_to_module.h
|
|
@@ -108,6 +108,7 @@ class ARMExToModule {
|
|
ARMExToModule(Module* module)
|
|
: module_(module) { }
|
|
~ARMExToModule() { }
|
|
+ bool HasStackFrame(uintptr_t addr, size_t size);
|
|
void AddStackFrame(uintptr_t addr, size_t size);
|
|
int ImproveStackFrame(const struct extab_data* edata);
|
|
void DeleteStackFrame();
|
|
diff --git a/toolkit/crashreporter/google-breakpad/src/common/linux/dump_symbols.cc b/toolkit/crashreporter/google-breakpad/src/common/linux/dump_symbols.cc
|
|
index d59832c..9a54bab 100644
|
|
--- a/toolkit/crashreporter/google-breakpad/src/common/linux/dump_symbols.cc
|
|
+++ b/toolkit/crashreporter/google-breakpad/src/common/linux/dump_symbols.cc
|
|
@@ -695,10 +695,12 @@ bool LoadSymbols(const string& obj_file,
|
|
FindElfSectionByName<ElfClass>(".ARM.extab", SHT_PROGBITS,
|
|
sections, names, names_end,
|
|
elf_header->e_shnum);
|
|
- // Only load information from this section if there isn't a .debug_info
|
|
- // section.
|
|
- if (!found_debug_info_section
|
|
- && arm_exidx_section && arm_extab_section && symbol_data != NO_CFI) {
|
|
+ // Load information from these sections even if there is
|
|
+ // .debug_info, because some functions (e.g., hand-written or
|
|
+ // script-generated assembly) could have exidx entries but no DWARF.
|
|
+ // (For functions with both, the DWARF info that has already been
|
|
+ // parsed will take precedence.)
|
|
+ if (arm_exidx_section && arm_extab_section && symbol_data != NO_CFI) {
|
|
info->LoadedSection(".ARM.exidx");
|
|
info->LoadedSection(".ARM.extab");
|
|
bool result = LoadARMexidx<ElfClass>(elf_header,
|