This patch moves ARM register numbers enum to arch/arm.h, so that it
can used by GDBserver too.
This patch also creates a new directory gdb/arch in which arch-specific
or target-specific files are placed.
gdb:
2015-07-30 Yao Qi <yao.qi@linaro.org>
* arm-tdep.h (enum gdb_regnum): Move it to ...
* arch/arm.h: ... here. New file.
* Makefile.in (HFILES_NO_SRCDIR): Add arch/arm.h.
This patch is to remove the global variable arm_linux_has_wmmx_registers
in arm-linux-nat.c, and add a new field have_wmmx_registers in
'struct gdbarch_tdep'.
gdb:
2015-05-28 Yao Qi <yao.qi@linaro.org>
* arm-linux-nat.c (arm_linux_has_wmmx_registers): Remove.
(arm_linux_fetch_inferior_registers): Use
tdep->have_wmmx_registers instead of arm_linux_has_wmmx_registers.
(arm_linux_store_inferior_registers): Likewise.
(arm_linux_read_description): Don't set
arm_linux_has_wmmx_registers.
* arm-tdep.c (arm_gdbarch_init): Set
tdep->have_wmmx_registers according target descriptions.
* arm-tdep.h (struct gdbarch_tdep) <have_wmmx_registers>: New
field.
This patch is to remove the global variable arm_linux_vfp_register_count
from arm-linux-nat.c. This global variable is set when native gdb
looks for the right target description according HWCAP. However,
'struct gdbarch_tdep' has already had a field have_vfp_registers, which
is a boolean about whether target has vfp registers or not. This
patch converts this boolean field to a numeric counter to replace
global variable arm_linux_vfp_register_count.
gdb:
2015-05-28 Yao Qi <yao.qi@linaro.org>
* arm-linux-nat.c (arm_linux_vfp_register_count): Remove.
(fetch_vfp_regs): Use vfp_register_count from gdbarch_tdep
instead of arm_linux_vfp_register_count.
(store_vfp_regs): Likewise.
(arm_linux_fetch_inferior_registers): Likewise.
(arm_linux_store_inferior_registers): Likewise.
(arm_linux_read_description): Don't set
arm_linux_vfp_register_count.
* arm-linux-tdep.c (arm_linux_iterate_over_regset_sections):
Adjust.
* arm-tdep.c (arm_gdbarch_init): Add assert on
vfp_register_count.
* arm-tdep.h (struct gdbarch_tdep) <have_vfp_registers>: Rename
field to vfp_register_count. All users updated.
-Wpointer-sign catches all these cases across the codebase that should
be using gdb_byte for raw target bytes. I think these are all
obvious, hence I've collapsed into a single patch.
gdb/
2013-04-19 Pedro Alves <palves@redhat.com>
* aarch64-tdep.c (aarch64_default_breakpoint): Change type to
gdb_byte[].
(aarch64_breakpoint_from_pc): Change return type to gdb_byte *.
* ada-lang.c (ada_value_assign): Use gdb_byte.
* alphanbsd-tdep.c (sigtramp_retcode): Change type to gdb_byte[].
(alphanbsd_sigtramp_offset): Use gdb_byte.
* arm-linux-tdep.c (arm_linux_arm_le_breakpoint)
(arm_linux_arm_be_breakpoint, eabi_linux_arm_le_breakpoint)
(eabi_linux_arm_be_breakpoint, arm_linux_thumb_be_breakpoint)
(arm_linux_thumb_le_breakpoint, arm_linux_thumb2_be_breakpoint)
(arm_linux_thumb2_le_breakpoint): Change type to gdb_byte[].
* arm-tdep.c (arm_stub_unwind_sniffer)
(arm_displaced_init_closure): Use gdb_byte.
(arm_default_arm_le_breakpoint, arm_default_arm_be_breakpoint)
(arm_default_thumb_le_breakpoint)
(arm_default_thumb_be_breakpoint): Change type to gdb_byte[].
* arm-tdep.h (struct gdbarch_tdep) <arm_breakpoint,
thumb_breakpoint, thumb2_breakpoint>: Change type to gdb_byte *.
* arm-wince-tdep.c (arm_wince_le_breakpoint)
(arm_wince_thumb_le_breakpoint): Change type to gdb_byte[].
* armnbsd-tdep.c (arm_nbsd_arm_le_breakpoint)
(arm_nbsd_arm_be_breakpoint, arm_nbsd_thumb_le_breakpoint)
(arm_nbsd_thumb_be_breakpoint): Change type to gdb_byte[].
* armobsd-tdep.c (arm_obsd_thumb_le_breakpoint)
(arm_obsd_thumb_be_breakpoint): Change type to gdb_byte[].
* cris-tdep.c (push_stack_item, cris_push_dummy_call)
(cris_store_return_value, cris_extract_return_value): Use
gdb_byte.
(constraint): Change type of parameter to char * from signed
char*. Use gdb_byte.
* dwarf2loc.c (read_pieced_value, write_pieced_value): Change type
of local buffer to gdb_byte *.
* dwarf2read.c (read_index_from_section): Use gdb_byte.
(create_dwp_hash_table): Change type of locals to gdb_byte *.
(add_address_entry): Change type of local buffer to gdb_byte[].
* frv-tdep.c (frv_adjust_breakpoint_address, find_func_descr)
(frv_push_dummy_call): Use gdb_byte.
* hppa-hpux-tdep.c (hppa_hpux_push_dummy_code)
(hppa_hpux_supply_ss_fpblock, hppa_hpux_supply_ss_wide)
(hppa_hpux_supply_save_state): Use gdb_byte.
* hppa-tdep.c (hppa32_push_dummy_call)
(hppa64_convert_code_addr_to_fptr): Use gdb_byte.
* ia64-tdep.c (extract_bit_field, replace_bit_field)
(slotN_contents, replace_slotN_contents): Change type of parameter
to gdb_byte *.
(fetch_instruction, ia64_pseudo_register_write)
(ia64_register_to_value, ia64_value_to_register)
(ia64_extract_return_value, ia64_store_return_value)
(ia64_push_dummy_call): Use gdb_byte.
* m32c-tdep.c (m32c_return_value): Remove cast.
* m68hc11-tdep.c (m68hc11_pseudo_register_write)
(m68hc11_push_dummy_call, m68hc11_store_return_value): Use
gdb_byte.
* mipsnbsd-tdep.c (mipsnbsd_get_longjmp_target): Use gdb_byte.
* mn10300-tdep.c (mn10300_store_return_value)
(mn10300_breakpoint_from_pc, mn10300_push_dummy_call): Use
gdb_byte.
* moxie-tdep.c (moxie_process_readu): Use gdb_byte.
(moxie_process_record): Remove casts.
* ppc-ravenscar-thread.c (supply_register_at_address)
(ppc_ravenscar_generic_store_registers): Use gdb_byte.
* ravenscar-thread.c (get_running_thread_id): Use gdb_byte.
* remote-m32r-sdi.c (m32r_fetch_register): Use gdb_byte.
* remote-mips.c (mips_xfer_memory): Use gdb_byte.
* remote.c (compare_sections_command): Use gdb_byte.
* score-tdep.c (score7_free_memblock): Change type of parameter to
gdb_byte *.
* sh-tdep.c (sh_justify_value_in_reg): Change return type to
gdb_byte *. Use gdb_byte.
(sh_push_dummy_call_fpu): Use gdb_byte.
(sh_extract_return_value_nofpu, sh_extract_return_value_fpu)
(sh_store_return_value_nofpu, sh_store_return_value_fpu)
(sh_register_convert_to_virtual, sh_register_convert_to_raw):
Change parameter type to 'gdb_byte *'. Use gdb_byte.
(sh_pseudo_register_read, sh_pseudo_register_write): Use gdb_byte.
* sh64-tdep.c (sh64_push_dummy_call): Use gdb_byte.
(sh64_store_return_value, sh64_register_convert_to_virtual):
Change parameter type to 'gdb_byte *'. Use gdb_byte.
(sh64_pseudo_register_write): Use gdb_byte.
* solib-darwin.c (darwin_current_sos): Add casts to 'gdb_byte *'.
* solib-irix.c (fetch_lm_info): Likewise. Use gdb_byte for byte
buffer.
(irix_current_sos): Use gdb_byte.
* solib-som.c (som_current_sos): Use gdb_byte.
* sparc-ravenscar-thread.c (supply_register_at_address)
(sparc_ravenscar_generic_store_registers): Use gdb_byte.
* spu-multiarch.c (spu_xfer_partial): Add cast to 'char *'.
* spu-tdep.c (spu_get_overlay_table): Use gdb_byte.
* tic6x-tdep.c (tic6x_breakpoint_from_pc): Change return type to
'gdb_byte *'.
* tic6x-tdep.h (struct gdbarch_tdep) <breakpoint>: Change type to
'gdb_byte *'.
* tracepoint.c (tfile_fetch_registers): Use gdb_byte.
* xstormy16-tdep.c (xstormy16_extract_return_value)
(xstormy16_store_return_value): Change parameter type to
'gdb_byte *'. Adjust.
(xstormy16_push_dummy_call): Use gdb_byte.
* xtensa-tdep.c (xtensa_scan_prologue, call0_ret)
(call0_analyze_prologue, execute_code): Use gdb_byte.
Two modifications:
1. The addition of 2013 to the copyright year range for every file;
2. The use of a single year range, instead of potentially multiple
year ranges, as approved by the FSF.
set_gdbarch_process_record.
Initialize `arm_swi_record' field.
* arm-tdep.c (arm_process_record): New function.
(deallocate_reg_mem): New function.
(decode_insn): New function.
(thumb_record_branch): New function.
(thumb_record_ldm_stm_swi(): New function.
(thumb_record_misc): New function.
(thumb_record_ld_st_stack): New function.
(thumb_record_ld_st_imm_offset): New function.
(thumb_record_ld_st_reg_offset(): New function.
(thumb_record_add_sub_cmp_mov): New function.
(thumb_record_shift_add_sub): New function.
(arm_record_coproc_data_proc): New function.
(arm_record_coproc): New function.
(arm_record_b_bl): New function.
(arm_record_ld_st_multiple): New function.
(arm_record_ld_st_reg_offset): New function.
(arm_record_ld_st_imm_offset): New function.
(arm_record_data_proc_imm): New function.
(arm_record_data_proc_misc_ld_str): New function.
(arm_record_extension_space): New function.
(arm_record_strx): New function.
(sbo_sbz): New function.
(struct insn_decode_record): New structure for arm insn record.
(REG_ALLOC): New macro for reg allocations.
(MEM_ALLOC): New macro for memory allocations.
* arm-tdep.h (struct gdbarch_tdep): New field 'arm_swi_record'
* arm-tdep.h (struct displaced_step_closure): Add two new fields
is_thumb and insn_size.
* arm-tdep.c (displaced_read_reg): Adjust correct pipeline offset
on both ARM and Thumb mode.
(arm_process_displaced_insn): Set is_thumb and insn_size.
(arm_displaced_init_closure): Handle both 16-bit and 32-bit.
(arm_displaced_step_fixup): Likewise.
(arm_linux_restart_syscall_init): Handle both on-stack and in-kernel
versions of the trampoline. Handle Thumb vs. ARM addresses.
(arm_kernel_linux_restart_syscall_tramp_frame): New global.
(arm_linux_init_abi): Install it.
* arm-tdep.c (arm_psr_thumb_bit): Make global.
* arm-tdep.c (arm_psr_thumb_bit): Add prototype.
* arm-linux-tdep.c (arm_linux_sigreturn_return_addr): New.
(arm_linux_syscall_next_pc): New.
(arm_linux_copy_svc): Use arm_linux_sigreturn_return_addr instead.
(arm_linux_init_abi): Initialize syscall_next_pc.
* arm-tdep.c (thumb_get_next_pc_raw): Get next pc of SWI in Thumb mode.
(arm_get_next_pc_raw): Get next pc of SWI in ARM mode.
* arm-tdep.h (struct gdbarch_tdep): Add a function pointer syscall_next_pc.
Declare arm_frame_is_thumb.
(arm_psr_thumb_bit): New. Update all uses of CPSR_T to
call this function.
(arm_pc_is_thumb): Add a gdbarch argument. Update all callers.
Check is_m after force-mode.
(arm_gdbarch_init): Check the binary before the target description.
Add check for M profile attribute. If we have an M-profile device,
but no target register description, use arm-with-m. Recognize the
new org.gnu.gdb.arm.m-profile feature and its xpsr register.
(_initialize_arm_tdep): Call initialize_tdesc_arm_with_m.
* arm-tdep.h (XPSR_T): Define.
(struct gdbarch_tdep): Add is_m member.
* features/arm-m-profile.xml, features/arm-with-m.c,
features/arm-with-m.xml: New files.
doc/
* gdb.texinfo (ARM Features): Document
org.gnu.gdb.arm.m-profile.
* arm-tdep.h (gdb_regnum): Add ARM_FPSCR_REGNUM
* arm-linux-nat.c (arm_linux_vfp_register_count): New
variable.
(fetch_vfp_registers): New function to fetch VFP registers.
(store_vfp_registers): New function to store VFP registers.
(arm_linux_fetch_inferior_registers): Add support for VFP
registers.
(arm_linux_store_inferior_registers): Likewise.
(arm_linux_read_description): Likewise.
(_initialize_arm_linux_nat): Delay initialising iWMMX tdesc
until we need it.
(arm_linux_thumb2_le_breakpoint): New constants.
(arm_linux_init_abi): Set thumb2_breakpoint and
thumb2_breakpoint_size.
* arm-tdep.c (thumb_insn_size, thumb_advance_itstate): New functions.
(thumb_get_next_pc): Add a comment. Rename IT to ITSTATE.
Implement support for single stepping through IT blocks if
a 32-bit Thumb breakpoint instruction is available.
(arm_breakpoint_from_pc): If a 32-bit Thumb breakpoint instruction
is available, use it when needed.
(arm_remote_breakpoint_from_pc): New function.
(arm_gdbarch_init): Register arm_remote_breakpoint_from_pc.
* arm-tdep.h (struct gdbarch_tdep): Correct thumb_breakpoint
comment. Add thumb2_breakpoint and thumb2_breakpoint_size.
gdbserver/
* linux-arm-low.c (thumb_breakpoint_len): Delete.
(thumb2_breakpoint): New.
(arm_breakpoint_at): Check for Thumb-2 breakpoints.
testsuite/
* gdb.arch/thumb2-it.S, gdb.arch/thumb2-it.exp: New files.
* arm-tdep.c (arm_frame_is_thumb): New.
(arm_pc_is_thumb): Clarify comment.
(thumb_analyze_prologue): Remove PC special case.
(thumb_scan_prologue): Take a block_addr argument. Use it for
find_pc_partial_function. Remove unused variables.
(arm_scan_prologue): Use arm_frame_is_thumb. Use the block address
for find_pc_partial_function. Remove PC special case.
(arm_prologue_prev_register): Add special handling for PC and CPSR.
(arm_dwarf2_prev_register, arm_dwarf2_frame_init_reg): New.
(arm_get_next_pc): Use arm_frame_is_thumb.
(arm_write_pc): Use CPSR_T instead of 0x20.
(arm_gdbarch_init): Call dwarf2_frame_set_init_reg.
* arm-tdep.h (enum gdb_regnum): Add ARM_CPSR_REGNUM.
(CPSR_T): Define.
* dwarf2-frame.c (dwarf2_frame_prev_register): Handle
DWARF2_FRAME_REG_FN.
* dwarf2-frame.h (enum dwarf2_frame_reg_rule): Add
DWARF2_FRAME_REG_FN.
(struct dwarf2_frame_state_reg): Add FN to loc union.
* gdb.arch/thumb-prologue.exp: Do not expect a saved PC.
* arm-tdep.c (arm_prologue_this_id): Replace LOWEST_PC by its
expression and use get_frame_arch to replace current_gdbarch by frame's
architecture.
*arm-tdep.h (LOWEST_PC): Remove
(thumb_analyze_prologue): Move pv_area_store_would_trash call
out of loop. Do not set cache->frameoffset.
(arm_scan_prologue): Use prologue-value mechanism. Do not set
frameoffset. Simplify framesize.
(arm_make_prologue_cache, arm_normal_frame_base): Do not use
frameoffset.
* arm-tdep.h (enum gdb_regnum): Add ARM_IP_REGNUM.
