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Adding support for mips.

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Support for mips cpu is added to all breakapad targets including unittests.

BUG=none
TEST=unittests

Review URL: https://breakpad.appspot.com/614002



git-svn-id: http://google-breakpad.googlecode.com/svn/trunk@1212 4c0a9323-5329-0410-9bdc-e9ce6186880e
This commit is contained in:
gordana.cmiljanovic@imgtec.com
2013-09-11 11:37:04 +00:00
parent ae35566b8d
commit f78839c157
31 changed files with 2095 additions and 39 deletions
Download Patch File Download Diff File Expand all files Collapse all files

15
src/common/dwarf/dwarf2reader.cc
View File

@@ -1512,16 +1512,19 @@ bool CallFrameInfo::State::DoInstruction() {
// Change the base register used to compute the CFA.
case DW_CFA_def_cfa_register: {
if (!ParseOperands("r", &ops)) return false;
Rule *cfa_rule = rules_.CFARule();
if (!cfa_rule) {
reporter_->NoCFARule(entry_->offset, entry_->kind, CursorOffset());
if (!DoDefCFA(ops.register_number, ops.offset)) {
reporter_->NoCFARule(entry_->offset, entry_->kind, CursorOffset());
return false;
}
} else {
cfa_rule->SetBaseRegister(ops.register_number);
if (!cfa_rule->Handle(handler_, address_,
Handler::kCFARegister))
return false;
}
if (!ParseOperands("r", &ops)) return false;
cfa_rule->SetBaseRegister(ops.register_number);
if (!cfa_rule->Handle(handler_, address_,
Handler::kCFARegister))
return false;
break;
}

17
src/common/dwarf_cfi_to_module.cc
View File

@@ -105,6 +105,23 @@ vector<string> DwarfCFIToModule::RegisterNames::ARM() {
return MakeVector(names, sizeof(names) / sizeof(names[0]));
}
vector<string> DwarfCFIToModule::RegisterNames::MIPS() {
static const char* const kRegisterNames[] = {
"$zero", "$at", "$v0", "$v1", "$a0", "$a1", "$a2", "$a3",
"$t0", "$t1", "$t2", "$t3", "$t4", "$t5", "$t6", "$t7",
"$s0", "$s1", "$s2", "$s3", "$s4", "$s5", "$s6", "$s7",
"$t8", "$t9", "$k0", "$k1", "$gp", "$sp", "$fp", "$ra",
"$lo", "$hi", "$pc", "$f0", "$f2", "$f3", "$f4", "$f5",
"$f6", "$f7", "$f8", "$f9", "$f10", "$f11", "$f12", "$f13",
"$f14", "$f15", "$f16", "$f17", "$f18", "$f19", "$f20",
"$f21", "$f22", "$f23", "$f24", "$f25", "$f26", "$f27",
"$f28", "$f29", "$f30", "$f31", "$fcsr", "$fir"
};
return MakeVector(kRegisterNames,
sizeof(kRegisterNames) / sizeof(kRegisterNames[0]));
}
bool DwarfCFIToModule::Entry(size_t offset, uint64 address, uint64 length,
uint8 version, const string &augmentation,
unsigned return_address) {

3
src/common/dwarf_cfi_to_module.h
View File

@@ -108,6 +108,9 @@ class DwarfCFIToModule: public CallFrameInfo::Handler {
// ARM.
static vector<string> ARM();
// MIPS.
static vector<string> MIPS();
private:
// Given STRINGS, an array of C strings with SIZE elements, return an

12
src/common/linux/dump_symbols.cc
View File

@@ -291,6 +291,9 @@ bool DwarfCFIRegisterNames(const typename ElfClass::Ehdr* elf_header,
case EM_ARM:
*register_names = DwarfCFIToModule::RegisterNames::ARM();
return true;
case EM_MIPS:
*register_names = DwarfCFIToModule::RegisterNames::MIPS();
return true;
case EM_X86_64:
*register_names = DwarfCFIToModule::RegisterNames::X86_64();
return true;
@@ -534,6 +537,7 @@ bool LoadSymbols(const string& obj_file,
typedef typename ElfClass::Addr Addr;
typedef typename ElfClass::Phdr Phdr;
typedef typename ElfClass::Shdr Shdr;
typedef typename ElfClass::Word Word;
Addr loading_addr = GetLoadingAddress<ElfClass>(
GetOffset<ElfClass, Phdr>(elf_header, elf_header->e_phoff),
@@ -541,6 +545,8 @@ bool LoadSymbols(const string& obj_file,
module->SetLoadAddress(loading_addr);
info->set_loading_addr(loading_addr, obj_file);
Word debug_section_type =
elf_header->e_machine == EM_MIPS ? SHT_MIPS_DWARF : SHT_PROGBITS;
const Shdr* sections =
GetOffset<ElfClass, Shdr>(elf_header, elf_header->e_shoff);
const Shdr* section_names = sections + elf_header->e_shstrndx;
@@ -574,7 +580,7 @@ bool LoadSymbols(const string& obj_file,
// Look for DWARF debugging information, and load it if present.
const Shdr* dwarf_section =
FindElfSectionByName<ElfClass>(".debug_info", SHT_PROGBITS,
FindElfSectionByName<ElfClass>(".debug_info", debug_section_type,
sections, names, names_end,
elf_header->e_shnum);
if (dwarf_section) {
@@ -593,7 +599,7 @@ bool LoadSymbols(const string& obj_file,
// Dwarf Call Frame Information (CFI) is actually independent from
// the other DWARF debugging information, and can be used alone.
const Shdr* dwarf_cfi_section =
FindElfSectionByName<ElfClass>(".debug_frame", SHT_PROGBITS,
FindElfSectionByName<ElfClass>(".debug_frame", debug_section_type,
sections, names, names_end,
elf_header->e_shnum);
if (dwarf_cfi_section) {
@@ -611,7 +617,7 @@ bool LoadSymbols(const string& obj_file,
// Linux C++ exception handling information can also provide
// unwinding data.
const Shdr* eh_frame_section =
FindElfSectionByName<ElfClass>(".eh_frame", SHT_PROGBITS,
FindElfSectionByName<ElfClass>(".eh_frame", debug_section_type,
sections, names, names_end,
elf_header->e_shnum);
if (eh_frame_section) {