yuzu-emu/breakpad
1
0
Fork 0
mirror of https://github.com/yuzu-emu/breakpad.git synced 2024-11-27 20:24:16 +01:00
Code Issues Packages Projects Releases Wiki Activity

Adding mips support for Android.

Browse Source 
Mips linux support has been added previously in r1212. Some additional changes
are required to make breakpad functional on Android.

BUG=none
TEST=build, unittests, chrome test application

Review URL: https://breakpad.appspot.com/632002



git-svn-id: http://google-breakpad.googlecode.com/svn/trunk@1215 4c0a9323-5329-0410-9bdc-e9ce6186880e
This commit is contained in:
gordana.cmiljanovic@imgtec.com 2013-09-25 08:18:03 +00:00
parent ab52ca7d6e
commit db877a13bb
9 changed files with 126 additions and 8 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

7
src/client/linux/handler/exception_handler_unittest.cc
View File

@ -76,7 +76,12 @@ void FlushInstructionCache(const char* memory, uint32_t memory_size) {
# error "Your operating system is not supported yet"
# endif
#elif defined(__mips__)
# if defined(__linux__)
# if defined(__ANDROID__)
// Provided by Android's <unistd.h>
long begin = reinterpret_cast<long>(memory);
long end = begin + static_cast<long>(memory_size);
cacheflush(begin, end, 0);
# elif defined(__linux__)
// See http://www.linux-mips.org/wiki/Cacheflush_Syscall.
cacheflush(const_cast<char*>(memory), memory_size, ICACHE);
# else

4
src/client/linux/minidump_writer/minidump_writer.cc
View File

@ -429,7 +429,11 @@ static void CPUFillFromUContext(MDRawContextMIPS* out, const ucontext* uc,
out->cause = 0; // Not reported in signal context.
for (int i = 0; i < MD_FLOATINGSAVEAREA_MIPS_FPR_COUNT; ++i)
#if defined (__ANDROID__)
out->float_save.regs[i] = uc->uc_mcontext.fpregs[i];
#else
out->float_save.regs[i] = uc->uc_mcontext.fpregs.fp_r.fp_dregs[i];
#endif
out->float_save.fpcsr = uc->uc_mcontext.fpc_csr;
out->float_save.fir = uc->uc_mcontext.fpc_eir; // Unused.

79
src/common/android/breakpad_getcontext.S
View File

@ -140,6 +140,85 @@ breakpad_getcontext:
.size breakpad_getcontext, . - breakpad_getcontext
#elif defined(__mips__)
#if _MIPS_SIM != _ABIO32
#error "Unsupported mips ISA. Only mips o32 is supported."
#endif
// This implementation is inspired by implementation of getcontext in glibc.
#include <asm/asm.h>
#include <asm/regdef.h>
#include <asm/fpregdef.h>
#include <asm/unistd.h> // for __NR_rt_sigprocmask
#define _NSIG8 128 / 8
#define SIG_BLOCK 1
.text
LOCALS_NUM = 2 // save gp and ra on stack
FRAME_SIZE = ((LOCALS_NUM * SZREG) + ALSZ) & ALMASK
RA_FRAME_OFFSET = FRAME_SIZE - (1 * SZREG)
GP_FRAME_OFFSET = FRAME_SIZE - (2 * SZREG)
MCONTEXT_REG_SIZE = 8
NESTED (breakpad_getcontext, FRAME_SIZE, ra)
.mask 0x00000000, 0
.fmask 0x00000000, 0
.set noreorder
.cpload t9
.set reorder
move a2, sp
#define _SP a2
addiu sp, -FRAME_SIZE
sw ra, RA_FRAME_OFFSET(sp)
sw gp, GP_FRAME_OFFSET(sp)
sw s0, (16 * MCONTEXT_REG_SIZE + MCONTEXT_GREGS_OFFSET)(a0)
sw s1, (17 * MCONTEXT_REG_SIZE + MCONTEXT_GREGS_OFFSET)(a0)
sw s2, (18 * MCONTEXT_REG_SIZE + MCONTEXT_GREGS_OFFSET)(a0)
sw s3, (19 * MCONTEXT_REG_SIZE + MCONTEXT_GREGS_OFFSET)(a0)
sw s4, (20 * MCONTEXT_REG_SIZE + MCONTEXT_GREGS_OFFSET)(a0)
sw s5, (21 * MCONTEXT_REG_SIZE + MCONTEXT_GREGS_OFFSET)(a0)
sw s6, (22 * MCONTEXT_REG_SIZE + MCONTEXT_GREGS_OFFSET)(a0)
sw s7, (23 * MCONTEXT_REG_SIZE + MCONTEXT_GREGS_OFFSET)(a0)
sw _SP, (29 * MCONTEXT_REG_SIZE + MCONTEXT_GREGS_OFFSET)(a0)
sw fp, (30 * MCONTEXT_REG_SIZE + MCONTEXT_GREGS_OFFSET)(a0)
sw ra, (31 * MCONTEXT_REG_SIZE + MCONTEXT_GREGS_OFFSET)(a0)
sw ra, MCONTEXT_PC_OFFSET(a0)
#ifdef __mips_hard_float
s.d fs0, (20 * MCONTEXT_REG_SIZE + MCONTEXT_FPREGS_OFFSET)(a0)
s.d fs1, (22 * MCONTEXT_REG_SIZE + MCONTEXT_FPREGS_OFFSET)(a0)
s.d fs2, (24 * MCONTEXT_REG_SIZE + MCONTEXT_FPREGS_OFFSET)(a0)
s.d fs3, (26 * MCONTEXT_REG_SIZE + MCONTEXT_FPREGS_OFFSET)(a0)
s.d fs4, (28 * MCONTEXT_REG_SIZE + MCONTEXT_FPREGS_OFFSET)(a0)
s.d fs5, (30 * MCONTEXT_REG_SIZE + MCONTEXT_FPREGS_OFFSET)(a0)
cfc1 v1, fcr31
sw v1, MCONTEXT_FPC_CSR(a0)
#endif // __mips_hard_float
/* rt_sigprocmask (SIG_BLOCK, NULL, &ucp->uc_sigmask, _NSIG8) */
li a3, _NSIG8
addu a2, a0, UCONTEXT_SIGMASK_OFFSET
move a1, zero
li a0, SIG_BLOCK
li v0, __NR_rt_sigprocmask
syscall
lw ra, RA_FRAME_OFFSET(sp)
lw gp, GP_FRAME_OFFSET(sp)
addiu sp, FRAME_SIZE
jr ra
END (breakpad_getcontext)
#else
#error "This file has not been ported for your CPU!"
#endif

13
src/common/android/breakpad_getcontext_unittest.cc
View File

@ -69,6 +69,19 @@ TEST(AndroidUContext, GRegsOffset) {
ASSERT_EQ(static_cast<size_t>(UCONTEXT_FPREGS_MEM_OFFSET),
offsetof(ucontext_t,__fpregs_mem));
#elif defined(__mips__)
ASSERT_EQ(static_cast<size_t>(MCONTEXT_GREGS_OFFSET),
offsetof(ucontext_t,uc_mcontext.gregs));
// PC for mips is not part of gregs.
ASSERT_EQ(static_cast<size_t>(MCONTEXT_PC_OFFSET),
offsetof(ucontext_t,uc_mcontext.pc));
ASSERT_EQ(static_cast<size_t>(MCONTEXT_FPREGS_OFFSET),
offsetof(ucontext_t,uc_mcontext.fpregs));
ASSERT_EQ(static_cast<size_t>(MCONTEXT_FPC_CSR),
offsetof(ucontext_t,uc_mcontext.fpc_csr));
#else
ASSERT_EQ(static_cast<size_t>(MCONTEXT_GREGS_OFFSET),
offsetof(ucontext_t,uc_mcontext.gregs));

1
src/common/android/include/sys/ucontext.h
View File

@ -128,7 +128,6 @@ typedef struct ucontext {
#elif defined(__mips__)
// Not supported by Google Breakpad at this point, but just in case.
typedef struct {
uint32_t regmask;
uint32_t status;

19
src/common/android/include/sys/user.h
View File

@ -120,8 +120,23 @@ struct user {
#elif defined(__mips__)
// TODO: Provide some useful definitions here, once the rest of Breakpad
// requires them.
#define _ASM_USER_H 1 // Prevent <asm/user.h> conflicts
struct user_regs_struct {
unsigned long long regs[32];
unsigned long long lo;
unsigned long long hi;
unsigned long long epc;
unsigned long long badvaddr;
unsigned long long status;
unsigned long long cause;
};
struct user_fpregs_struct {
unsigned long long regs[32];
unsigned int fpcsr;
unsigned int fir;
};
#else
# error "Unsupported Android CPU ABI"

7
src/common/android/ucontext_constants.h
View File

@ -75,8 +75,11 @@
#elif defined(__mips__)
#define MCONTEXT_GREGS_OFFSET 0
#define UCONTEXT_SIGMASK_OFFSET 0
#define MCONTEXT_PC_OFFSET 32
#define MCONTEXT_GREGS_OFFSET 40
#define MCONTEXT_FPREGS_OFFSET 296
#define MCONTEXT_FPC_CSR 556
#define UCONTEXT_SIGMASK_OFFSET 616
#else
#error "This header has not been ported for your CPU"

2
src/common/linux/dump_symbols.cc
View File

@ -617,7 +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", debug_section_type,
FindElfSectionByName<ElfClass>(".eh_frame", SHT_PROGBITS,
sections, names, names_end,
elf_header->e_shnum);
if (eh_frame_section) {

2
src/google_breakpad/common/minidump_cpu_mips.h
View File

@ -66,7 +66,7 @@
#ifndef GOOGLE_BREAKPAD_COMMON_MINIDUMP_CPU_MIPS_H__
#define GOOGLE_BREAKPAD_COMMON_MINIDUMP_CPU_MIPS_H__
#ifdef __mips__
#if defined(__mips__) && !defined(__ANDROID__)
typedef struct {
uint64_t regs[32];
uint64_t lo;