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MIPS64: Initial MIPS64 related change.

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With this change Breakpad can be compiled for MIPS64,
but it is not yet functional.

Patch by Gordana Cmiljanovic <Gordana.Cmiljanovic@imgtec.com>
Review URL: https://breakpad.appspot.com/6824002/


git-svn-id: http://google-breakpad.googlecode.com/svn/trunk@1446 4c0a9323-5329-0410-9bdc-e9ce6186880e
This commit is contained in:
mark@chromium.org 2015-04-15 19:28:11 +00:00
parent 18fc88ddc2
commit d88401cca9
14 changed files with 156 additions and 20 deletions
Download patch file Download diff file Expand all files Collapse all files

119
src/common/android/breakpad_getcontext.S
View file

@ -229,14 +229,27 @@ 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.
#if _MIPS_SIM == _ABIO32
#include <asm/asm.h>
#include <asm/regdef.h>
#include <asm/fpregdef.h>
#else
#include <machine/asm.h>
#include <machine/regdef.h>
#endif
// from asm/asm.h
#if _MIPS_SIM == _ABIO32
#define ALSZ 7
#define ALMASK ~7
#define SZREG 4
#else // _MIPS_SIM != _ABIO32
#define ALSZ 15
#define ALMASK ~15
#define SZREG 8
#endif
#include <asm/unistd.h> // for __NR_rt_sigprocmask
#define _NSIG8 128 / 8
@ -244,12 +257,14 @@ breakpad_getcontext:
.text
LOCALS_NUM = 2 // save gp and ra on stack
LOCALS_NUM = 1 // save gp on stack
FRAME_SIZE = ((LOCALS_NUM * SZREG) + ALSZ) & ALMASK
RA_FRAME_OFFSET = FRAME_SIZE - (1 * SZREG)
GP_FRAME_OFFSET = FRAME_SIZE - (2 * SZREG)
GP_FRAME_OFFSET = FRAME_SIZE - (1 * SZREG)
MCONTEXT_REG_SIZE = 8
#if _MIPS_SIM == _ABIO32
NESTED (breakpad_getcontext, FRAME_SIZE, ra)
.mask 0x00000000, 0
.fmask 0x00000000, 0
@ -262,8 +277,7 @@ NESTED (breakpad_getcontext, FRAME_SIZE, ra)
#define _SP a2
addiu sp, -FRAME_SIZE
sw ra, RA_FRAME_OFFSET(sp)
sw gp, GP_FRAME_OFFSET(sp)
.cprestore GP_FRAME_OFFSET
sw s0, (16 * MCONTEXT_REG_SIZE + MCONTEXT_GREGS_OFFSET)(a0)
sw s1, (17 * MCONTEXT_REG_SIZE + MCONTEXT_GREGS_OFFSET)(a0)
@ -298,12 +312,95 @@ NESTED (breakpad_getcontext, FRAME_SIZE, ra)
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
#ifndef NESTED
/*
* NESTED - declare nested routine entry point
*/
#define NESTED(symbol, framesize, rpc) \
.globl symbol; \
.align 2; \
.type symbol,@function; \
.ent symbol,0; \
symbol: .frame sp, framesize, rpc;
#endif
/*
* END - mark end of function
*/
#ifndef END
# define END(function) \
.end function; \
.size function,.-function
#endif
/* int getcontext (ucontext_t *ucp) */
NESTED (breakpad_getcontext, FRAME_SIZE, ra)
.mask 0x10000000, 0
.fmask 0x00000000, 0
move a2, sp
#define _SP a2
move a3, gp
#define _GP a3
daddiu sp, -FRAME_SIZE
.cpsetup $25, GP_FRAME_OFFSET, breakpad_getcontext
/* Store a magic flag. */
li v1, 1
sd v1, (0 * MCONTEXT_REG_SIZE + MCONTEXT_GREGS_OFFSET)(a0) /* zero */
sd s0, (16 * MCONTEXT_REG_SIZE + MCONTEXT_GREGS_OFFSET)(a0)
sd s1, (17 * MCONTEXT_REG_SIZE + MCONTEXT_GREGS_OFFSET)(a0)
sd s2, (18 * MCONTEXT_REG_SIZE + MCONTEXT_GREGS_OFFSET)(a0)
sd s3, (19 * MCONTEXT_REG_SIZE + MCONTEXT_GREGS_OFFSET)(a0)
sd s4, (20 * MCONTEXT_REG_SIZE + MCONTEXT_GREGS_OFFSET)(a0)
sd s5, (21 * MCONTEXT_REG_SIZE + MCONTEXT_GREGS_OFFSET)(a0)
sd s6, (22 * MCONTEXT_REG_SIZE + MCONTEXT_GREGS_OFFSET)(a0)
sd s7, (23 * MCONTEXT_REG_SIZE + MCONTEXT_GREGS_OFFSET)(a0)
sd _GP, (28 * MCONTEXT_REG_SIZE + MCONTEXT_GREGS_OFFSET)(a0)
sd _SP, (29 * MCONTEXT_REG_SIZE + MCONTEXT_GREGS_OFFSET)(a0)
sd s8, (30 * MCONTEXT_REG_SIZE + MCONTEXT_GREGS_OFFSET)(a0)
sd ra, (31 * MCONTEXT_REG_SIZE + MCONTEXT_GREGS_OFFSET)(a0)
sd ra, MCONTEXT_PC_OFFSET(a0)
#ifdef __mips_hard_float
s.d $f24, (24 * MCONTEXT_REG_SIZE + MCONTEXT_FPREGS_OFFSET)(a0)
s.d $f25, (25 * MCONTEXT_REG_SIZE + MCONTEXT_FPREGS_OFFSET)(a0)
s.d $f26, (26 * MCONTEXT_REG_SIZE + MCONTEXT_FPREGS_OFFSET)(a0)
s.d $f27, (27 * MCONTEXT_REG_SIZE + MCONTEXT_FPREGS_OFFSET)(a0)
s.d $f28, (28 * MCONTEXT_REG_SIZE + MCONTEXT_FPREGS_OFFSET)(a0)
s.d $f29, (29 * MCONTEXT_REG_SIZE + MCONTEXT_FPREGS_OFFSET)(a0)
s.d $f30, (30 * MCONTEXT_REG_SIZE + MCONTEXT_FPREGS_OFFSET)(a0)
s.d $f31, (31 * MCONTEXT_REG_SIZE + MCONTEXT_FPREGS_OFFSET)(a0)
cfc1 v1, $31
sw v1, MCONTEXT_FPC_CSR(a0)
#endif /* __mips_hard_float */
/* rt_sigprocmask (SIG_BLOCK, NULL, &ucp->uc_sigmask, _NSIG8) */
li a3, _NSIG8
daddu a2, a0, UCONTEXT_SIGMASK_OFFSET
move a1, zero
li a0, SIG_BLOCK
li v0, __NR_rt_sigprocmask
syscall
.cpreturn
daddiu sp, FRAME_SIZE
move v0, zero
jr ra
END (breakpad_getcontext)
#endif // _MIPS_SIM == _ABIO32
#elif defined(__x86_64__)
/* The x64 implementation of breakpad_getcontext was derived in part

3
src/common/android/include/link.h
View file

@ -36,7 +36,8 @@
// TODO(rmcilroy): Remove this file once the ndk is updated for other
// architectures - crbug.com/358831
#if !defined(__aarch64__) && !defined(__x86_64__)
#if !defined(__aarch64__) && !defined(__x86_64__) && \
!(defined(__mips__) && _MIPS_SIM == _ABI64)
#ifdef __cplusplus
extern "C" {

4
src/common/android/testing/include/wchar.h
View file

@ -38,6 +38,9 @@
#include_next <wchar.h>
#if !defined(__aarch64__) && !defined(__x86_64__) && \
!(defined(__mips__) && _MIPS_SIM == _ABI64)
// This needs to be in an extern "C" namespace, or Googletest will not
// compile against it.
#ifdef __cplusplus
@ -68,5 +71,6 @@ static int inline wcscasecmp(const wchar_t* s1, const wchar_t* s2) {
#ifdef __cplusplus
} // extern "C"
#endif // __cplusplus
#endif
#endif // GOOGLEBREAKPAD_COMMON_ANDROID_INCLUDE_WCHAR_H

8
src/common/android/ucontext_constants.h
View file

@ -97,11 +97,19 @@
#elif defined(__mips__)
#if _MIPS_SIM == _ABIO32
#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
#define MCONTEXT_GREGS_OFFSET 40
#define MCONTEXT_FPREGS_OFFSET 296
#define MCONTEXT_PC_OFFSET 616
#define MCONTEXT_FPC_CSR 624
#define UCONTEXT_SIGMASK_OFFSET 640
#endif
#elif defined(__x86_64__)

9
src/common/linux/memory_mapped_file.cc
View file

@ -54,6 +54,8 @@ MemoryMappedFile::~MemoryMappedFile() {
Unmap();
}
#include <unistd.h>
bool MemoryMappedFile::Map(const char* path, size_t offset) {
Unmap();
@ -62,7 +64,9 @@ bool MemoryMappedFile::Map(const char* path, size_t offset) {
return false;
}
#if defined(__x86_64__) || defined(__aarch64__)
#if defined(__x86_64__) || defined(__aarch64__) || \
(defined(__mips__) && _MIPS_SIM == _ABI64)
struct kernel_stat st;
if (sys_fstat(fd, &st) == -1 || st.st_size < 0) {
#else
@ -83,7 +87,8 @@ bool MemoryMappedFile::Map(const char* path, size_t offset) {
return true;
}
#if defined(__x86_64__) || defined(__aarch64__)
#if defined(__x86_64__) || defined(__aarch64__) || \
(defined(__mips__) && _MIPS_SIM == _ABI64)
void* data = sys_mmap(NULL, file_len, PROT_READ, MAP_PRIVATE, fd, offset);
#else
if ((offset & 4095) != 0) {

3
src/common/memory.h
View file

@ -114,7 +114,8 @@ class PageAllocator {
private:
uint8_t *GetNPages(size_t num_pages) {
#if defined(__x86_64__) || defined(__aarch64__)
#if defined(__x86_64__) || defined(__aarch64__) || defined(__aarch64__) || \
((defined(__mips__) && _MIPS_SIM == _ABI64))
void *a = sys_mmap(NULL, page_size_ * num_pages, PROT_READ | PROT_WRITE,
MAP_PRIVATE | MAP_ANONYMOUS, -1, 0);
#else