This patch adds the support of aarch64-linux process record and reverse
debugging. The implementation is similar to ARM's counterpart.
2015-05-26 Omair Javaid <omair.javaid@linaro.org>
Yao Qi <yao.qi@linaro.org>
* aarch64-linux-tdep.c: Include linux-record.h and
record-full.h.
(struct linux_record_tdep aarch64_linux_record_tdep): Declare.
(aarch64_syscall): New enum.
(aarch64_canonicalize_syscall): New function.
(aarch64_all_but_pc_registers_record): New function.
(aarch64_linux_syscall_record): New function.
(aarch64_linux_init_abi): Install AArch64 process record
handler. Update to handle syscall recording.
* aarch64-tdep.c: Include record.h and record-full.h.
(submask, bit, bits, REG_ALLOC, MEM_ALLOC): New macros.
(struct aarch64_mem_r): Define.
(aarch64_record_result): New enum.
(struct insn_decode_record): Define.
(insn_decode_record): New typedef.
(aarch64_record_data_proc_reg): New function.
(aarch64_record_data_proc_imm): New function.
(aarch64_record_branch_except_sys): New function.
(aarch64_record_load_store): New function.
(aarch64_record_data_proc_simd_fp): New function.
(aarch64_record_asimd_load_store): New function.
(aarch64_record_decode_insn_handler): New function.
(deallocate_reg_mem): New function.
(aarch64_process_record): New function.
* aarch64-tdep.h (struct gdbarch_tdep) <aarch64_syscall_record>:
New field.
(aarch64_process_record): New extern declaration.
* configure.tgt: Add linux-record.o to gdb_target_obs.
* linux-record.h (struct linux_record_tdep) <arg7>: New field.
Current trunk GDB (and gdb-7.8.1 too) fails to build on Aarch64 when
-fno-common is enabled. It fails during link stage due to multiple
definition of `tdesc_aarch64':
...
[ 199s] aarch64-linux-nat.o: In function `initialize_tdesc_aarch64':
[ 199s]
/home/abuild/rpmbuild/BUILD/gdb-7.8.1/gdb/features/aarch64.c:11:
multiple definition of `tdesc_aarch64'
[ 199s]
aarch64-tdep.o:/home/abuild/rpmbuild/BUILD/gdb-7.8.1/gdb/objfiles.h:540:
first defined here
[ 199s] aarch64-linux-nat.o: In function `initialize_tdesc_aarch64':
[ 199s]
/home/abuild/rpmbuild/BUILD/gdb-7.8.1/gdb/features/aarch64.c:11:
multiple definition of `tdesc_aarch64'
[ 199s]
aarch64-tdep.o:/home/abuild/rpmbuild/BUILD/gdb-7.8.1/gdb/objfiles.h:540:
first defined here
[ 199s] collect2: error: ld returned 1 exit status
[ 199s] make[2]: *** [gdb] Error 1
...
This happens because struct target_desc *tdesc_aarch64 is defined in
gdb/features/aarch64.c, which is included by two files
(gdb/aarch64-linux-nat.c and gdb/aarch64-tdep.c).
gdb/Changelog
2015-02-17 Max Ostapenko <m.ostapenko@partner.samsung.com>
PR gdb/17984
* aarch64-linux-nat.c: Don't include features/aarch64.c anymore.
(aarch64_linux_read_description): Remove initialize_tdesc_aarch64
call.
* aarch64-tdep.h (tdesc_aarch64): Declare.
