binutils-gdb/gdb/arch-utils.c

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/* Dynamic architecture support for GDB, the GNU debugger.
Copyright (C) 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007,
2008 Free Software Foundation, Inc.
This file is part of GDB.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>. */
#include "defs.h"
#include "arch-utils.h"
#include "buildsym.h"
#include "gdbcmd.h"
#include "inferior.h" /* enum CALL_DUMMY_LOCATION et.al. */
#include "gdb_string.h"
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#include "regcache.h"
#include "gdb_assert.h"
#include "sim-regno.h"
#include "gdbcore.h"
#include "osabi.h"
#include "target-descriptions.h"
Implement displaced stepping. gdb/ * gdbarch.sh (max_insn_length): New 'variable'. (displaced_step_copy, displaced_step_fixup) (displaced_step_free_closure, displaced_step_location): New functions. (struct displaced_step_closure): Add forward declaration. * gdbarch.c, gdbarch.h: Regenerated. * arch-utils.c: #include "objfiles.h". (simple_displaced_step_copy_insn) (simple_displaced_step_free_closure) (displaced_step_at_entry_point): New functions. * arch-utils.h (simple_displaced_step_copy_insn) (simple_displaced_step_free_closure) (displaced_step_at_entry_point): New prototypes. * i386-tdep.c (I386_MAX_INSN_LEN): Rename to... (I386_MAX_MATCHED_INSN_LEN): ... this. (i386_absolute_jmp_p, i386_absolute_call_p) (i386_ret_p, i386_call_p, i386_breakpoint_p, i386_syscall_p) (i386_displaced_step_fixup): New functions. (struct i386_insn, i386_match_insn): Update. (i386_gdbarch_init): Set gdbarch_max_insn_length. * i386-tdep.h (I386_MAX_INSN_LEN): New. (i386_displaced_step_fixup): New prototype. * i386-linux-tdep.c (i386_linux_init_abi): Include "arch-utils.h". Register gdbarch_displaced_step_copy, gdbarch_displaced_step_fixup, gdbarch_displaced_step_free_closure, and gdbarch_displaced_step_location functions. * infrun.c (debug_displaced): New variable. (show_debug_displaced): New function. (struct displaced_step_request): New struct. (displaced_step_request_queue, displaced_step_ptid) (displaced_step_gdbarch, displaced_step_closure) (displaced_step_original, displaced_step_copy) (displaced_step_saved_copy, can_use_displaced_stepping): New variables. (show_can_use_displaced_stepping, use_displaced_stepping) (displaced_step_clear, cleanup_displaced_step_closure) (displaced_step_dump_bytes, displaced_step_prepare) (displaced_step_clear_cleanup, write_memory_ptid) (displaced_step_fixup): New functions. (resume): Call displaced_step_prepare. (proceed): Call read_pc once, and remember the value. If using displaced stepping, don't remove breakpoints. (handle_inferior_event): Call displaced_step_fixup. Add some debugging output. When we try to step over a breakpoint, but get a signal to deliver to the thread instead, ensure the step-resume breakpoint is actually inserted. If a thread hop is needed, and displaced stepping is enabled, don't remove breakpoints. (init_wait_for_inferior): Call displaced_step_clear. (_initialize_infrun): Add "set debug displaced" command. Add "maint set can-use-displaced-stepping" command. Clear displaced_step_ptid. * inferior.h (debug_displaced): Declare variable. (displaced_step_dump_bytes): Declare function. * Makefile.in (arch-utils.o, i386-linux-tdep.o): Update dependencies. gdb/testsuite/ * gdb.asm/asmsrc1.s: Add scratch space. gdb/doc/ * gdb.texinfo (Debugging Output): Document "set/show debug displaced". (Maintenance Commands): Document "maint set/show can-use-displaced-stepping".
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#include "objfiles.h"
#include "version.h"
#include "floatformat.h"
Implement displaced stepping. gdb/ * gdbarch.sh (max_insn_length): New 'variable'. (displaced_step_copy, displaced_step_fixup) (displaced_step_free_closure, displaced_step_location): New functions. (struct displaced_step_closure): Add forward declaration. * gdbarch.c, gdbarch.h: Regenerated. * arch-utils.c: #include "objfiles.h". (simple_displaced_step_copy_insn) (simple_displaced_step_free_closure) (displaced_step_at_entry_point): New functions. * arch-utils.h (simple_displaced_step_copy_insn) (simple_displaced_step_free_closure) (displaced_step_at_entry_point): New prototypes. * i386-tdep.c (I386_MAX_INSN_LEN): Rename to... (I386_MAX_MATCHED_INSN_LEN): ... this. (i386_absolute_jmp_p, i386_absolute_call_p) (i386_ret_p, i386_call_p, i386_breakpoint_p, i386_syscall_p) (i386_displaced_step_fixup): New functions. (struct i386_insn, i386_match_insn): Update. (i386_gdbarch_init): Set gdbarch_max_insn_length. * i386-tdep.h (I386_MAX_INSN_LEN): New. (i386_displaced_step_fixup): New prototype. * i386-linux-tdep.c (i386_linux_init_abi): Include "arch-utils.h". Register gdbarch_displaced_step_copy, gdbarch_displaced_step_fixup, gdbarch_displaced_step_free_closure, and gdbarch_displaced_step_location functions. * infrun.c (debug_displaced): New variable. (show_debug_displaced): New function. (struct displaced_step_request): New struct. (displaced_step_request_queue, displaced_step_ptid) (displaced_step_gdbarch, displaced_step_closure) (displaced_step_original, displaced_step_copy) (displaced_step_saved_copy, can_use_displaced_stepping): New variables. (show_can_use_displaced_stepping, use_displaced_stepping) (displaced_step_clear, cleanup_displaced_step_closure) (displaced_step_dump_bytes, displaced_step_prepare) (displaced_step_clear_cleanup, write_memory_ptid) (displaced_step_fixup): New functions. (resume): Call displaced_step_prepare. (proceed): Call read_pc once, and remember the value. If using displaced stepping, don't remove breakpoints. (handle_inferior_event): Call displaced_step_fixup. Add some debugging output. When we try to step over a breakpoint, but get a signal to deliver to the thread instead, ensure the step-resume breakpoint is actually inserted. If a thread hop is needed, and displaced stepping is enabled, don't remove breakpoints. (init_wait_for_inferior): Call displaced_step_clear. (_initialize_infrun): Add "set debug displaced" command. Add "maint set can-use-displaced-stepping" command. Clear displaced_step_ptid. * inferior.h (debug_displaced): Declare variable. (displaced_step_dump_bytes): Declare function. * Makefile.in (arch-utils.o, i386-linux-tdep.o): Update dependencies. gdb/testsuite/ * gdb.asm/asmsrc1.s: Add scratch space. gdb/doc/ * gdb.texinfo (Debugging Output): Document "set/show debug displaced". (Maintenance Commands): Document "maint set/show can-use-displaced-stepping".
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struct displaced_step_closure *
simple_displaced_step_copy_insn (struct gdbarch *gdbarch,
CORE_ADDR from, CORE_ADDR to,
struct regcache *regs)
{
size_t len = gdbarch_max_insn_length (gdbarch);
gdb_byte *buf = xmalloc (len);
read_memory (from, buf, len);
write_memory (to, buf, len);
if (debug_displaced)
{
fprintf_unfiltered (gdb_stdlog, "displaced: copy 0x%s->0x%s: ",
paddr_nz (from), paddr_nz (to));
displaced_step_dump_bytes (gdb_stdlog, buf, len);
}
return (struct displaced_step_closure *) buf;
}
void
simple_displaced_step_free_closure (struct gdbarch *gdbarch,
struct displaced_step_closure *closure)
{
xfree (closure);
}
CORE_ADDR
displaced_step_at_entry_point (struct gdbarch *gdbarch)
{
CORE_ADDR addr;
int bp_len;
addr = entry_point_address ();
/* Make certain that the address points at real code, and not a
function descriptor. */
addr = gdbarch_convert_from_func_ptr_addr (gdbarch, addr, &current_target);
/* Inferior calls also use the entry point as a breakpoint location.
We don't want displaced stepping to interfere with those
breakpoints, so leave space. */
gdbarch_breakpoint_from_pc (gdbarch, &addr, &bp_len);
addr += bp_len * 2;
return addr;
}
int
legacy_register_sim_regno (struct gdbarch *gdbarch, int regnum)
{
/* Only makes sense to supply raw registers. */
gdb_assert (regnum >= 0 && regnum < gdbarch_num_regs (gdbarch));
/* NOTE: cagney/2002-05-13: The old code did it this way and it is
suspected that some GDB/SIM combinations may rely on this
behavour. The default should be one2one_register_sim_regno
(below). */
if (gdbarch_register_name (gdbarch, regnum) != NULL
&& gdbarch_register_name (gdbarch, regnum)[0] != '\0')
return regnum;
else
return LEGACY_SIM_REGNO_IGNORE;
}
CORE_ADDR
* gdbarch.sh (skip_trampoline_code): Add FRAME argument. * gdbarch.c, gdbarch.h: Regenerate. * arch-utils.c (generic_skip_trampoline_code): Add FRAME argument. * arch-utils.h (generic_skip_trampoline_code): Likewise. * infrun.c (handle_inferior_event): Pass current frame to gdbarch_skip_trampoline_code and skip_language_trampoline. * language.c (unk_lang_trampoline): Add FRAME argument. (skip_language_trampoline): Add FRAME argument. Pass it to skip_trampoline callback. * language.h: Add forward declaration of struct frame_info. (struct language_defn): Add FRAME argument to skip_trampoline. (skip_language_trampoline): Add FRAME argument. * cp-abi.c (cplus_skip_trampoline): Add FRAME argument. Pass it to skip_trampoline callback. * cp-abi.h: Add forward declaration of struct frame_info. (cplus_skip_trampoline): Add FRAME argument. (struct cp_abi_ops): Add FRAME argument to skip_trampoline callback. * gnu-v3-abi.c (gnuv3_skip_trampoline): Add FRAME argument. Pass it to gdbarch_skip_trampoline_code. * objc-lang.c (objc_skip_trampoline): Add FRAME argument. Pass it to gdbarch_skip_trampoline_code. * minsyms.c (find_solib_trampoline_target): Add FRAME argument. * symtab.h (find_solib_trampoline_target): Likewise. * obsd-tdep.c (obsd_skip_solib_resolver): Pass current frame to find_solib_trampoline_target. * arm-tdep.c (arm_skip_stub): Add FRAME argument. Read registers from FRAME instead of calling read_register. * hppa-hpux-tdep.c (hppa_hpux_skip_trampoline_code): Add FRAME argument. Read registers from FRAME instead of using read_register. * hppa-tdep.c (hppa_skip_trampoline_code): Likewise. * hppa-tdep.h (hppa_skip_trampoline_code): Add FRAME argument. * i386-cygwin-tdep.c (i386_cygwin_skip_trampoline_code): Add FRAME argument. * m32c-tdep.c (m32c_skip_trampoline_code): Add FRAME argument. * mips-tdep.c (mips_skip_trampoline_code): Add FRAME argument. Read registers from FRAME instead of using read_signed_register. * ppc-linux-tdep.c (ppc_linux_skip_trampoline_code): Add FRAME argument. (ppc64_standard_linkage_target): Likewise. Read registers from FRAME instead of using read_register. (ppc64_skip_trampoline_code): Add FRAME argument. Pass it to ppc64_standard_linkage_target. * rs6000-tdep.c (rs6000_skip_trampoline_code): Add FRAME argument. Pass it to find_solib_trampoline_target. Read registers from FRAME instead of using read_register. * xstormy16-tdep.c (xstormy16_skip_trampoline_code): Add FRAME argument.
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generic_skip_trampoline_code (struct frame_info *frame, CORE_ADDR pc)
{
return 0;
}
CORE_ADDR
generic_skip_solib_resolver (struct gdbarch *gdbarch, CORE_ADDR pc)
{
return 0;
}
int
generic_in_solib_return_trampoline (CORE_ADDR pc, char *name)
{
return 0;
}
int
generic_in_function_epilogue_p (struct gdbarch *gdbarch, CORE_ADDR pc)
{
return 0;
}
/* Helper functions for gdbarch_inner_than */
int
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core_addr_lessthan (CORE_ADDR lhs, CORE_ADDR rhs)
{
return (lhs < rhs);
}
int
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core_addr_greaterthan (CORE_ADDR lhs, CORE_ADDR rhs)
{
return (lhs > rhs);
}
/* Misc helper functions for targets. */
CORE_ADDR
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core_addr_identity (CORE_ADDR addr)
{
return addr;
}
CORE_ADDR
convert_from_func_ptr_addr_identity (struct gdbarch *gdbarch, CORE_ADDR addr,
struct target_ops *targ)
{
return addr;
}
int
no_op_reg_to_regnum (struct gdbarch *gdbarch, int reg)
{
return reg;
}
void
default_elf_make_msymbol_special (asymbol *sym, struct minimal_symbol *msym)
{
return;
}
void
default_coff_make_msymbol_special (int val, struct minimal_symbol *msym)
{
return;
}
int
cannot_register_not (struct gdbarch *gdbarch, int regnum)
{
return 0;
}
/* Legacy version of target_virtual_frame_pointer(). Assumes that
there is an gdbarch_deprecated_fp_regnum and that it is the same, cooked or
2003-04-28 Andrew Cagney <cagney@redhat.com> * gdbarch.sh (DEPRECATED_TARGET_READ_FP): Replace TARGET_READ_FP. (DEPRECATED_FP_REGNUM): Replace FP_REGNUM. * gdbarch.h, gdbarch.c: Re-generate. * infcall.c (call_function_by_hand): Use DEPRECATED_FP_REGNUM, DEPRECATED_TARGET_READ_FP, or "sp" to create the dummy frame ID. * inferior.h (deprecated_read_fp): Rename read_fp. (generic_target_read_fp): Delete declaration. * regcache.c (generic_target_read_fp): Delete function. (deprecated_read_fp): Replace read_fp, use DEPRECATED_TARGET_READ_FP or DEPRECATED_FP_REGNUM. * d10v-tdep.c (d10v_read_fp): Delete function. (d10v_gdbarch_init): Do not set deprecated_read_fp. * sparc-tdep.c (sparc_gdbarch_init): Do not set deprecated_target_read_fp to generic_target_read_fp. * sh-tdep.c (sh_gdbarch_init): Ditto. * rs6000-tdep.c (rs6000_gdbarch_init): Ditto. * m68hc11-tdep.c (m68hc11_gdbarch_init): Ditto. * frv-tdep.c (frv_gdbarch_init): Ditto. * xstormy16-tdep.c (xstormy16_gdbarch_init): Set deprecated_fp_regnum. * x86-64-tdep.c (x86_64_init_abi): Ditto. * vax-tdep.c (vax_gdbarch_init): Ditto. * v850-tdep.c (v850_gdbarch_init): Ditto. * sparc-tdep.c (sparc_gdbarch_init): Ditto. * sh-tdep.c (sh_gdbarch_init): Ditto. * s390-tdep.c (s390_gdbarch_init): Ditto. * rs6000-tdep.c (rs6000_gdbarch_init): Ditto. * mn10300-tdep.c (mn10300_gdbarch_init): Ditto. * mcore-tdep.c (mcore_gdbarch_init): Ditto. * m68k-tdep.c (m68k_gdbarch_init): Ditto. * m68hc11-tdep.c (m68hc11_gdbarch_init): Ditto. * ia64-tdep.c (ia64_gdbarch_init): Ditto. * i386-tdep.c (i386_gdbarch_init): Ditto. * hppa-tdep.c (hppa_gdbarch_init): Ditto. * h8300-tdep.c (h8300_gdbarch_init): Ditto. * frv-tdep.c (frv_gdbarch_init): Ditto. * cris-tdep.c (cris_gdbarch_init): Ditto. * avr-tdep.c (avr_gdbarch_init): Ditto. * arm-tdep.c (arm_gdbarch_init): Ditto. * alpha-tdep.c (alpha_gdbarch_init): Ditto. * x86-64-tdep.c (x86_64_init_abi): Set deprecated_target_read_fp. * v850-tdep.c (v850_gdbarch_init): Ditto. * sparc-tdep.c (sparc_gdbarch_init): Ditto. * sh-tdep.c (sh_gdbarch_init): Ditto. * s390-tdep.c (s390_gdbarch_init): Ditto. * rs6000-tdep.c (rs6000_gdbarch_init): Ditto. * mn10300-tdep.c (mn10300_gdbarch_init): Ditto. * mips-tdep.c (mips_gdbarch_init): Ditto. * m68hc11-tdep.c (m68hc11_gdbarch_init): Ditto. * ia64-tdep.c (ia64_gdbarch_init): Ditto. * hppa-tdep.c (hppa_gdbarch_init): Ditto. * frv-tdep.c (frv_gdbarch_init): Ditto. * avr-tdep.c (avr_gdbarch_init): Ditto. * arm-tdep.c (arm_gdbarch_init): Ditto. * vax-tdep.c (vax_frame_init_saved_regs): Replace FP_REGNUM with DEPRECATED_FP_REGNUM. (vax_push_dummy_frame, vax_pop_frame): Ditto. * std-regs.c (value_of_builtin_frame_fp_reg): Ditto. * sparc-tdep.c (sparc_init_extra_frame_info): Ditto. (sparc_push_dummy_frame, sparc64_read_fp): Ditto. (sparc32_register_virtual_type): Ditto. * sh-tdep.c (sh64_frame_chain): Ditto. (sh64_get_saved_register, sh64_pop_frame): Ditto. (sh_nofp_frame_init_saved_regs): Ditto. (sh64_nofp_frame_init_saved_regs): Ditto. (sh_fp_frame_init_saved_regs): Ditto. * remote-mips.c (mips_wait, mips_fetch_registers): Ditto. * remote-e7000.c (fetch_regs_from_dump): Ditto. * procfs.c (procfs_fetch_registers): Ditto. (procfs_store_registers): Ditto. * ns32knbsd-nat.c (fetch_inferior_registers): Ditto. (store_inferior_registers, fetch_core_registers): Ditto. (fetch_kcore_registers, clear_regs): Ditto. * ns32k-tdep.c (ns32k_frame_init_saved_regs): Ditto. (ns32k_push_dummy_frame, ns32k_pop_frame): Ditto. * nlm/i386.h (DEPRECATED_FP_REGNUM): Ditto. * nlm/i386.c (do_status): Ditto. * mipsv4-nat.c (supply_gregset): Ditto. * mips-tdep.c: Ditto for comments. * mips-nat.c (fetch_inferior_registers): Ditto. (store_inferior_registers, fetch_core_registers): Ditto. * m68k-tdep.c (m68k_push_dummy_frame): Ditto. (m68k_pop_frame, m68k_frame_init_saved_regs): Ditto. * i386-tdep.c (i386_frame_init_saved_regs): Ditto. (i386_do_pop_frame, i386_register_type): Ditto. * hppa-tdep.c (hppa_frame_chain): Ditto. (hppa_push_dummy_frame, find_dummy_frame_regs): Ditto. (hppa_pop_frame, hppa_read_fp): Ditto. (skip_prologue_hard_way, hppa_frame_find_saved_regs): Ditto. * cris-tdep.c (cris_examine, cris_pop_frame): Ditto. * config/vax/nm-vax.h (REGISTER_U_ADDR): Ditto. * config/sparc/tm-sparc.h (DEPRECATED_FP_REGNUM): Ditto. * config/sparc/tm-sp64.h (DEPRECATED_FP_REGNUM): Ditto. * config/s390/tm-s390.h (DEPRECATED_FP_REGNUM): Ditto. * config/pa/tm-hppa64.h (DEPRECATED_FP_REGNUM): Ditto. * config/ia64/tm-ia64.h (DEPRECATED_FP_REGNUM): Ditto. * blockframe.c: Ditto for comments. * arch-utils.h: Ditto for comments. * arch-utils.c (legacy_virtual_frame_pointer): Ditto. * alphanbsd-tdep.c (fetch_core_registers): Ditto. * alphabsd-nat.c (fetch_inferior_registers): Ditto. * alpha-tdep.h: Ditto for comments. * alpha-tdep.c (alpha_cannot_fetch_register): Ditto. (alpha_cannot_store_register): Ditto. (alpha_push_dummy_frame): Ditto. * alpha-nat.c (supply_gregset): Ditto. * config/sparc/tm-sp64.h (DEPRECATED_TARGET_READ_FP): Update. * config/pa/tm-hppa64.h (DEPRECATED_TARGET_READ_FP): Update. * config/sparc/tm-sparc.h: Update comment. * hppa-tdep.c (hppa_init_extra_frame_info): Use deprecated_read_fp instead of TARGET_READ_FP. (hppa_init_extra_frame_info, hppa_frame_chain): Ditto. (hppa_push_dummy_frame, hppa_read_fp): Ditto. * sparc-tdep.c (sparc_init_extra_frame_info): Use deprecated_read_fp instead of read_fp. * s390-tdep.c (s390_push_arguments): Ditto. * ia64-tdep.c (ia64_gdbarch_init): Ditto. * frame.h: Ditto in comments. * frame.c (legacy_get_prev_frame): Ditto. * dummy-frame.c (dummy_frame_this_id): Ditto. * arm-tdep.c (arm_init_extra_frame_info): Ditto. 2003-04-28 Andrew Cagney <cagney@redhat.com> * gdbint.texinfo (Target Architecture Definition): Replace read_fp, TARGET_READ_FP and FP_REGNUM, with deprecated_read_fp, DEPRECATED_TARGET_READ_FP and DEPRECATED_REGNUM.
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raw. */
void
legacy_virtual_frame_pointer (struct gdbarch *gdbarch,
CORE_ADDR pc,
int *frame_regnum,
LONGEST *frame_offset)
{
/* FIXME: cagney/2002-09-13: This code is used when identifying the
frame pointer of the current PC. It is assuming that a single
register and an offset can determine this. I think it should
instead generate a byte code expression as that would work better
with things like Dwarf2's CFI. */
if (gdbarch_deprecated_fp_regnum (gdbarch) >= 0
&& gdbarch_deprecated_fp_regnum (gdbarch)
< gdbarch_num_regs (gdbarch))
*frame_regnum = gdbarch_deprecated_fp_regnum (gdbarch);
else if (gdbarch_sp_regnum (gdbarch) >= 0
&& gdbarch_sp_regnum (gdbarch)
< gdbarch_num_regs (gdbarch))
*frame_regnum = gdbarch_sp_regnum (gdbarch);
else
/* Should this be an internal error? I guess so, it is reflecting
an architectural limitation in the current design. */
internal_error (__FILE__, __LINE__, _("No virtual frame pointer available"));
*frame_offset = 0;
}
int
generic_convert_register_p (struct gdbarch *gdbarch, int regnum,
struct type *type)
{
return 0;
}
int
default_stabs_argument_has_addr (struct gdbarch *gdbarch, struct type *type)
{
return 0;
}
int
generic_instruction_nullified (struct gdbarch *gdbarch,
struct regcache *regcache)
{
return 0;
}
* Makefile.in (arm-tdep.o, eval.o, target-descriptions.o) (xml-tdesc.o): Update. * xml-support.c: Add a comment. (gdb_xml_enums_boolean): New variable. (gdb_xml_parse_attr_enum): Use strcasecmp. * xml-support.h (gdb_xml_enums_boolean): Declare. * xml-tdesc.c (struct tdesc_parsing_data): Record current_feature, next_regnum, and current_union. (tdesc_start_feature, tdesc_start_reg, tdesc_start_union) (tdesc_end_union, tdesc_start_field, tdesc_start_vector) (field_attributes, union_children, reg_attributes, union_attributes) (vector_attributes, feature_attributes, feature_children): New. (target_children): Make static. Add <feature>. (tdesc_elements): Make static. * target-descriptions.c (struct tdesc_reg, tdesc_reg_p, type_p) (struct tdesc_feature, tdesc_feature_p): New types. (struct target_desc): Add features member. (struct tdesc_arch_data, tdesc_data): New. (target_find_description): Clarify error message. Warn about ignored register descriptions. (tdesc_has_registers, tdesc_find_feature, tdesc_feature_name) (tdesc_named_type, tdesc_data_init, tdesc_data_alloc) (tdesc_data_cleanup, tdesc_numbered_register) (tdesc_numbered_register_choices, tdesc_find_register) (tdesc_register_name, tdesc_register_type) (tdesc_remote_register_number, tdesc_register_reggroup_p) (set_tdesc_pseudo_register_name, set_tdesc_pseudo_register_type) (set_tdesc_pseudo_register_reggroup_p, tdesc_use_registers) (tdesc_free_reg, tdesc_create_reg, tdesc_free_feature) (tdesc_create_feature, tdesc_record_type): New. (free_target_description): Free features. (_initialize_target_descriptions): Initialize tdesc_data. * arch-utils.c (default_remote_register_number): New. * arch-utils.h (default_remote_register_number): New prototype. * target-descriptions.h (set_tdesc_pseudo_register_name) (set_tdesc_pseudo_register_type, set_tdesc_pseudo_register_reggroup_p) (tdesc_use_registers, tdesc_data_alloc, tdesc_data_cleanup) (tdesc_numbered_register, tdesc_numbered_register_choices) (tdesc_has_registers, tdesc_find_feature, tdesc_feature_name) (tdesc_named_type, tdesc_create_feature, tdesc_record_type) (tdesc_create_reg): Declare. * gdbarch.sh (remote_register_number): New entry. * gdbarch.c, gdbarch.h: Regenerate. * remote.c (init_remote_state): Use gdbarch_remote_register_number. * features/gdb-target.dtd: Add feature, reg, vector, union, and field. * arm-tdep.c (arm_register_aliases): New. (arm_register_name_strings): Rename to... (arm_register_names): ...this. Make const. Delete the old version. (current_option, arm_register_byte): Delete. (set_disassembly_style): Simplify. Do not adjust arm_register_names. (value_of_arm_user_reg): New. (arm_gdbarch_init): Verify any described registers. Call tdesc_use_registers. Don't use arm_register_byte. Create aliases for standard register names. (_initialize_arm_tdep): Do not adjust arm_register_names. * user-regs.c (struct user_reg): Add baton member. (append_user_reg, user_reg_add_builtin, user_regs_init) (user_reg_add, value_of_user_reg): Use a baton for user register functions. * std-regs.c: Update. * user-regs.h (user_reg_read_ftype, user_reg_add_builtin) (user_reg_add): Add baton argument. * NEWS: Mention target description register support. * features/arm-core.xml, features/arm-fpa.xml: New. * eval.c (evaluate_subexp_standard): Allow ptype $register when the program is not running. * gdb.texinfo (-target-disconnect): Use @smallexample. (Requirements): Add anchor for Expat. Update description. (Target Descriptions): Mention Expat. (Target Description Format): Document new elements. Use @smallexample. (Predefined Target Types, Standard Target Features): New sections. * doc/gdbint.texinfo (Target Descriptions): New section. * gdb.xml/single-reg.xml, gdb.xml/tdesc-regs.exp, gdb.xml/core-only.xml, gdb.xml/extra-regs.xml: New files.
2007-02-08 22:00:36 +01:00
int
default_remote_register_number (struct gdbarch *gdbarch,
int regno)
{
return regno;
}
/* Functions to manipulate the endianness of the target. */
static int target_byte_order_user = BFD_ENDIAN_UNKNOWN;
static const char endian_big[] = "big";
static const char endian_little[] = "little";
static const char endian_auto[] = "auto";
static const char *endian_enum[] =
{
endian_big,
endian_little,
endian_auto,
NULL,
};
static const char *set_endian_string;
enum bfd_endian
selected_byte_order (void)
{
if (target_byte_order_user != BFD_ENDIAN_UNKNOWN)
return gdbarch_byte_order (current_gdbarch);
else
return BFD_ENDIAN_UNKNOWN;
}
/* Called by ``show endian''. */
static void
show_endian (struct ui_file *file, int from_tty, struct cmd_list_element *c,
const char *value)
{
if (target_byte_order_user == BFD_ENDIAN_UNKNOWN)
if (gdbarch_byte_order (current_gdbarch) == BFD_ENDIAN_BIG)
fprintf_unfiltered (file, _("The target endianness is set automatically "
"(currently big endian)\n"));
else
fprintf_unfiltered (file, _("The target endianness is set automatically "
"(currently little endian)\n"));
else
if (gdbarch_byte_order (current_gdbarch) == BFD_ENDIAN_BIG)
fprintf_unfiltered (file,
_("The target is assumed to be big endian\n"));
else
fprintf_unfiltered (file,
_("The target is assumed to be little endian\n"));
}
static void
set_endian (char *ignore_args, int from_tty, struct cmd_list_element *c)
{
struct gdbarch_info info;
gdbarch_info_init (&info);
if (set_endian_string == endian_auto)
{
target_byte_order_user = BFD_ENDIAN_UNKNOWN;
if (! gdbarch_update_p (info))
internal_error (__FILE__, __LINE__,
_("set_endian: architecture update failed"));
}
else if (set_endian_string == endian_little)
{
info.byte_order = BFD_ENDIAN_LITTLE;
if (! gdbarch_update_p (info))
printf_unfiltered (_("Little endian target not supported by GDB\n"));
else
target_byte_order_user = BFD_ENDIAN_LITTLE;
}
else if (set_endian_string == endian_big)
{
info.byte_order = BFD_ENDIAN_BIG;
if (! gdbarch_update_p (info))
printf_unfiltered (_("Big endian target not supported by GDB\n"));
else
target_byte_order_user = BFD_ENDIAN_BIG;
}
else
internal_error (__FILE__, __LINE__,
_("set_endian: bad value"));
show_endian (gdb_stdout, from_tty, NULL, NULL);
}
XML feature description support. * NEWS: Mention target descriptions, "set tdesc filename", "unset tdesc filename", "show tdesc filename", and qXfer:features:read. * arch-utils.c (choose_architecture_for_target): New function. (gdbarch_info_fill): Call it. * target-descriptions.c (struct property): Make members non-const. (struct target_desc): Add arch member. (target_description_filename): New variable. (target_find_description): Try via XML first. (tdesc_architecture): New. (free_target_description, make_cleanup_free_target_description): New. (set_tdesc_property): Call xstrdup. (set_tdesc_architecture, tdesc_set_cmdlist, tdesc_show_cmdlist) (tdesc_unset_cmdlist, unset_tdesc_cmd, unset_tdesc_filename_cmd) (set_tdesc_cmd, show_tdesc_cmd, set_tdesc_filename_cmd) (show_tdesc_filename_cmd, _initialize_target_descriptions): New. * target-descriptions.h (tdesc_architecture) (make_cleanup_free_target_description, set_tdesc_architecture): New prototypes. * Makefile.in (SFILES): Add xml-tdesc.c. (COMMON_OBS): Add xml-tdesc.o. (target-descriptions.o): Update. (xml-tdesc.o): New rule. * xml-tdesc.c, xml-tdesc.h: New files. * remote.c (PACKET_qXfer_features): New enum. (remote_protocol_features): Add qXfer:features:read. (remote_xfer_partial): Handle TARGET_OBJECT_AVAILABLE_FEATURES. (_initialize_remote): Register qXfer:features:read. * target.h (enum target_object): Add TARGET_OBJECT_AVAILABLE_FEATURES. * features/gdb-target.dtd: New file. * linux-i386-low.c (the_low_target): Set arch_string. * linux-x86-64-low.c (the_low_target): Likewise. * linux-low.c (linux_arch_string): New. (linux_target_ops): Add it. * linux-low.h (struct linux_target_ops): Add arch_string. * server.c (write_qxfer_response): Use const void * for DATA. (get_features_xml): New. (handle_query): Handle qXfer:features:read. Report it for qSupported. * target.h (struct target_ops): Add arch_string method. * gdb.texinfo (Target Descriptions): New section. (General Query Packets): Add QPassSignals anchor. Mention qXfer:features:read under qSupported. Expand mentions of qXfer:memory-map:read and QPassSignals. Document qXfer:features:read.
2007-01-09 23:55:10 +01:00
/* Given SELECTED, a currently selected BFD architecture, and
FROM_TARGET, a BFD architecture reported by the target description,
return what architecture to use. Either may be NULL; if both are
specified, we use the more specific. If the two are obviously
incompatible, warn the user. */
static const struct bfd_arch_info *
choose_architecture_for_target (const struct bfd_arch_info *selected,
const struct bfd_arch_info *from_target)
{
const struct bfd_arch_info *compat1, *compat2;
if (selected == NULL)
return from_target;
if (from_target == NULL)
return selected;
/* struct bfd_arch_info objects are singletons: that is, there's
supposed to be exactly one instance for a given machine. So you
can tell whether two are equivalent by comparing pointers. */
if (from_target == selected)
return selected;
/* BFD's 'A->compatible (A, B)' functions return zero if A and B are
incompatible. But if they are compatible, it returns the 'more
featureful' of the two arches. That is, if A can run code
written for B, but B can't run code written for A, then it'll
return A.
Some targets (e.g. MIPS as of 2006-12-04) don't fully
implement this, instead always returning NULL or the first
argument. We detect that case by checking both directions. */
compat1 = selected->compatible (selected, from_target);
compat2 = from_target->compatible (from_target, selected);
if (compat1 == NULL && compat2 == NULL)
{
warning (_("Selected architecture %s is not compatible "
"with reported target architecture %s"),
selected->printable_name, from_target->printable_name);
return selected;
}
if (compat1 == NULL)
return compat2;
if (compat2 == NULL)
return compat1;
if (compat1 == compat2)
return compat1;
/* If the two didn't match, but one of them was a default architecture,
assume the more specific one is correct. This handles the case
where an executable or target description just says "mips", but
the other knows which MIPS variant. */
if (compat1->the_default)
return compat2;
if (compat2->the_default)
return compat1;
/* We have no idea which one is better. This is a bug, but not
a critical problem; warn the user. */
warning (_("Selected architecture %s is ambiguous with "
"reported target architecture %s"),
selected->printable_name, from_target->printable_name);
return selected;
}
/* Functions to manipulate the architecture of the target */
enum set_arch { set_arch_auto, set_arch_manual };
static const struct bfd_arch_info *target_architecture_user;
static const char *set_architecture_string;
const char *
selected_architecture_name (void)
{
if (target_architecture_user == NULL)
return NULL;
else
return set_architecture_string;
}
/* Called if the user enters ``show architecture'' without an
argument. */
static void
show_architecture (struct ui_file *file, int from_tty,
struct cmd_list_element *c, const char *value)
{
const char *arch;
arch = gdbarch_bfd_arch_info (current_gdbarch)->printable_name;
if (target_architecture_user == NULL)
fprintf_filtered (file, _("\
The target architecture is set automatically (currently %s)\n"), arch);
else
fprintf_filtered (file, _("\
The target architecture is assumed to be %s\n"), arch);
}
/* Called if the user enters ``set architecture'' with or without an
argument. */
static void
set_architecture (char *ignore_args, int from_tty, struct cmd_list_element *c)
{
struct gdbarch_info info;
gdbarch_info_init (&info);
if (strcmp (set_architecture_string, "auto") == 0)
{
target_architecture_user = NULL;
if (!gdbarch_update_p (info))
internal_error (__FILE__, __LINE__,
_("could not select an architecture automatically"));
}
else
{
info.bfd_arch_info = bfd_scan_arch (set_architecture_string);
if (info.bfd_arch_info == NULL)
internal_error (__FILE__, __LINE__,
_("set_architecture: bfd_scan_arch failed"));
if (gdbarch_update_p (info))
target_architecture_user = info.bfd_arch_info;
else
printf_unfiltered (_("Architecture `%s' not recognized.\n"),
set_architecture_string);
}
show_architecture (gdb_stdout, from_tty, NULL, NULL);
}
/* Try to select a global architecture that matches "info". Return
non-zero if the attempt succeds. */
int
gdbarch_update_p (struct gdbarch_info info)
{
struct gdbarch *new_gdbarch;
/* Check for the current file. */
if (info.abfd == NULL)
info.abfd = exec_bfd;
if (info.abfd == NULL)
info.abfd = core_bfd;
/* Check for the current target description. */
if (info.target_desc == NULL)
info.target_desc = target_current_description ();
new_gdbarch = gdbarch_find_by_info (info);
/* If there no architecture by that name, reject the request. */
if (new_gdbarch == NULL)
{
if (gdbarch_debug)
fprintf_unfiltered (gdb_stdlog, "gdbarch_update_p: "
"Architecture not found\n");
return 0;
}
/* If it is the same old architecture, accept the request (but don't
swap anything). */
if (new_gdbarch == current_gdbarch)
{
if (gdbarch_debug)
fprintf_unfiltered (gdb_stdlog, "gdbarch_update_p: "
"Architecture 0x%08lx (%s) unchanged\n",
(long) new_gdbarch,
gdbarch_bfd_arch_info (new_gdbarch)->printable_name);
return 1;
}
/* It's a new architecture, swap it in. */
if (gdbarch_debug)
fprintf_unfiltered (gdb_stdlog, "gdbarch_update_p: "
"New architecture 0x%08lx (%s) selected\n",
(long) new_gdbarch,
gdbarch_bfd_arch_info (new_gdbarch)->printable_name);
deprecated_current_gdbarch_select_hack (new_gdbarch);
return 1;
}
/* Return the architecture for ABFD. If no suitable architecture
could be find, return NULL. */
struct gdbarch *
gdbarch_from_bfd (bfd *abfd)
{
struct gdbarch_info info;
gdbarch_info_init (&info);
info.abfd = abfd;
return gdbarch_find_by_info (info);
}
/* Set the dynamic target-system-dependent parameters (architecture,
byte-order) using information found in the BFD */
void
set_gdbarch_from_file (bfd *abfd)
{
struct gdbarch_info info;
struct gdbarch *gdbarch;
gdbarch_info_init (&info);
info.abfd = abfd;
info.target_desc = target_current_description ();
gdbarch = gdbarch_find_by_info (info);
if (gdbarch == NULL)
2005-02-10 Andrew Cagney <cagney@gnu.org> Mark up all error and warning messages. * ada-lang.c, amd64-tdep.c, arch-utils.c, breakpoint.c: Update. * bsd-kvm.c, bsd-uthread.c, coff-solib.h, coffread.c: Update. * core-aout.c, core-regset.c, corefile.c, corelow.c: Update. * cp-abi.c, cp-support.c, cp-valprint.c, cris-tdep.c: Update. * dbxread.c, demangle.c, doublest.c, dsrec.c: Update. * dve3900-rom.c, dwarf2expr.c, dwarf2loc.c: Update. * dwarf2read.c, dwarfread.c, elfread.c, eval.c: Update. * event-top.c, exec.c, expprint.c, f-lang.c: Update. * f-typeprint.c, f-valprint.c, fbsd-nat.c, findvar.c: Update. * frame.c, frv-linux-tdep.c, gcore.c, gdbtypes.c: Update. * gnu-nat.c, gnu-v2-abi.c, gnu-v3-abi.c, go32-nat.c: Update. * hpacc-abi.c, hppa-hpux-nat.c, hppa-hpux-tdep.c: Update. * hppa-linux-nat.c, hppa-linux-tdep.c, hppa-tdep.c: Update. * hpread.c, hpux-thread.c, i386-linux-nat.c: Update. * i386-linux-tdep.c, i386-tdep.c, i386bsd-nat.c: Update. * i386gnu-nat.c, i387-tdep.c, ia64-linux-nat.c: Update. * ia64-tdep.c, inf-child.c, inf-ptrace.c, inf-ttrace.c: Update. * infcall.c, infcmd.c, inflow.c, infptrace.c, infrun.c: Update. * inftarg.c, interps.c, irix5-nat.c, jv-lang.c: Update. * kod-cisco.c, kod.c, language.c, libunwind-frame.c: Update. * linespec.c, linux-nat.c, linux-thread-db.c, m2-lang.c: Update. * m32r-rom.c, m68hc11-tdep.c, m68k-tdep.c: Update. * m68klinux-nat.c, macrocmd.c, macroexp.c, main.c: Update. * maint.c, mdebugread.c, mem-break.c, memattr.c: Update. * mips-linux-tdep.c, mips-tdep.c, mipsread.c, monitor.c: Update. * nlmread.c, nto-procfs.c, objc-lang.c, objfiles.c: Update. * observer.c, ocd.c, p-lang.c, p-typeprint.c: Update. * p-valprint.c, pa64solib.c, parse.c, ppc-linux-tdep.c: Update. * ppcnbsd-tdep.c, printcmd.c, procfs.c, remote-e7000.c: Update. * remote-fileio.c, remote-m32r-sdi.c, remote-rdi.c: Update. * remote-rdp.c, remote-sim.c, remote-st.c: Update. * remote-utils.c, remote-utils.h, remote.c: Update. * rom68k-rom.c, rs6000-nat.c, s390-tdep.c, scm-lang.c: Update. * ser-e7kpc.c, ser-tcp.c, ser-unix.c, sh-tdep.c: Update. * sh3-rom.c, shnbsd-tdep.c, sol-thread.c, solib-aix5.c: Update. * solib-frv.c, solib-irix.c, solib-osf.c, solib-pa64.c: Update. * solib-som.c, solib-sunos.c, solib-svr4.c, solib.c: Update. * somread.c, somsolib.c, source.c, stabsread.c: Update. * stack.c, std-regs.c, symfile-mem.c, symfile.c: Update. * symmisc.c, symtab.c, target.c, thread.c, top.c: Update. * tracepoint.c, trad-frame.c, typeprint.c, utils.c: Update. * uw-thread.c, valarith.c, valops.c, valprint.c: Update. * value.c, varobj.c, version.in, win32-nat.c, wince.c: Update. * xcoffread.c, xcoffsolib.c, cli/cli-cmds.c: Update. * cli/cli-decode.c, cli/cli-dump.c, cli/cli-logging.c: Update. * cli/cli-script.c, cli/cli-setshow.c, mi/mi-cmd-break.c: Update. * mi/mi-cmd-disas.c, mi/mi-cmd-env.c, mi/mi-cmd-file.c: Update. * mi/mi-cmd-stack.c, mi/mi-cmd-var.c, mi/mi-getopt.c: Update. * mi/mi-symbol-cmds.c, tui/tui-layout.c, tui/tui-stack.c: Update. * tui/tui-win.c: Update.
2005-02-11 05:06:14 +01:00
error (_("Architecture of file not recognized."));
deprecated_current_gdbarch_select_hack (gdbarch);
}
/* Initialize the current architecture. Update the ``set
architecture'' command so that it specifies a list of valid
architectures. */
#ifdef DEFAULT_BFD_ARCH
extern const bfd_arch_info_type DEFAULT_BFD_ARCH;
static const bfd_arch_info_type *default_bfd_arch = &DEFAULT_BFD_ARCH;
#else
static const bfd_arch_info_type *default_bfd_arch;
#endif
#ifdef DEFAULT_BFD_VEC
extern const bfd_target DEFAULT_BFD_VEC;
static const bfd_target *default_bfd_vec = &DEFAULT_BFD_VEC;
#else
static const bfd_target *default_bfd_vec;
#endif
static int default_byte_order = BFD_ENDIAN_UNKNOWN;
void
initialize_current_architecture (void)
{
const char **arches = gdbarch_printable_names ();
/* determine a default architecture and byte order. */
struct gdbarch_info info;
gdbarch_info_init (&info);
/* Find a default architecture. */
if (default_bfd_arch == NULL)
{
/* Choose the architecture by taking the first one
alphabetically. */
const char *chosen = arches[0];
const char **arch;
for (arch = arches; *arch != NULL; arch++)
{
if (strcmp (*arch, chosen) < 0)
chosen = *arch;
}
if (chosen == NULL)
internal_error (__FILE__, __LINE__,
_("initialize_current_architecture: No arch"));
default_bfd_arch = bfd_scan_arch (chosen);
if (default_bfd_arch == NULL)
internal_error (__FILE__, __LINE__,
_("initialize_current_architecture: Arch not found"));
}
info.bfd_arch_info = default_bfd_arch;
/* Take several guesses at a byte order. */
if (default_byte_order == BFD_ENDIAN_UNKNOWN
&& default_bfd_vec != NULL)
{
/* Extract BFD's default vector's byte order. */
switch (default_bfd_vec->byteorder)
{
case BFD_ENDIAN_BIG:
default_byte_order = BFD_ENDIAN_BIG;
break;
case BFD_ENDIAN_LITTLE:
default_byte_order = BFD_ENDIAN_LITTLE;
break;
default:
break;
}
}
if (default_byte_order == BFD_ENDIAN_UNKNOWN)
{
/* look for ``*el-*'' in the target name. */
const char *chp;
chp = strchr (target_name, '-');
if (chp != NULL
&& chp - 2 >= target_name
&& strncmp (chp - 2, "el", 2) == 0)
default_byte_order = BFD_ENDIAN_LITTLE;
}
if (default_byte_order == BFD_ENDIAN_UNKNOWN)
{
/* Wire it to big-endian!!! */
default_byte_order = BFD_ENDIAN_BIG;
}
info.byte_order = default_byte_order;
if (! gdbarch_update_p (info))
internal_error (__FILE__, __LINE__,
_("initialize_current_architecture: Selection of "
"initial architecture failed"));
/* Create the ``set architecture'' command appending ``auto'' to the
list of architectures. */
{
struct cmd_list_element *c;
/* Append ``auto''. */
int nr;
for (nr = 0; arches[nr] != NULL; nr++);
arches = xrealloc (arches, sizeof (char*) * (nr + 2));
arches[nr + 0] = "auto";
arches[nr + 1] = NULL;
add_setshow_enum_cmd ("architecture", class_support,
arches, &set_architecture_string, _("\
Set architecture of target."), _("\
Show architecture of target."), NULL,
set_architecture, show_architecture,
&setlist, &showlist);
add_alias_cmd ("processor", "architecture", class_support, 1, &setlist);
}
}
/* Initialize a gdbarch info to values that will be automatically
overridden. Note: Originally, this ``struct info'' was initialized
using memset(0). Unfortunately, that ran into problems, namely
BFD_ENDIAN_BIG is zero. An explicit initialization function that
can explicitly set each field to a well defined value is used. */
void
gdbarch_info_init (struct gdbarch_info *info)
{
memset (info, 0, sizeof (struct gdbarch_info));
info->byte_order = BFD_ENDIAN_UNKNOWN;
info->osabi = GDB_OSABI_UNINITIALIZED;
}
/* Similar to init, but this time fill in the blanks. Information is
obtained from the global "set ..." options and explicitly
initialized INFO fields. */
void
gdbarch_info_fill (struct gdbarch_info *info)
{
/* "(gdb) set architecture ...". */
if (info->bfd_arch_info == NULL
&& target_architecture_user)
info->bfd_arch_info = target_architecture_user;
/* From the file. */
if (info->bfd_arch_info == NULL
&& info->abfd != NULL
&& bfd_get_arch (info->abfd) != bfd_arch_unknown
&& bfd_get_arch (info->abfd) != bfd_arch_obscure)
info->bfd_arch_info = bfd_get_arch_info (info->abfd);
XML feature description support. * NEWS: Mention target descriptions, "set tdesc filename", "unset tdesc filename", "show tdesc filename", and qXfer:features:read. * arch-utils.c (choose_architecture_for_target): New function. (gdbarch_info_fill): Call it. * target-descriptions.c (struct property): Make members non-const. (struct target_desc): Add arch member. (target_description_filename): New variable. (target_find_description): Try via XML first. (tdesc_architecture): New. (free_target_description, make_cleanup_free_target_description): New. (set_tdesc_property): Call xstrdup. (set_tdesc_architecture, tdesc_set_cmdlist, tdesc_show_cmdlist) (tdesc_unset_cmdlist, unset_tdesc_cmd, unset_tdesc_filename_cmd) (set_tdesc_cmd, show_tdesc_cmd, set_tdesc_filename_cmd) (show_tdesc_filename_cmd, _initialize_target_descriptions): New. * target-descriptions.h (tdesc_architecture) (make_cleanup_free_target_description, set_tdesc_architecture): New prototypes. * Makefile.in (SFILES): Add xml-tdesc.c. (COMMON_OBS): Add xml-tdesc.o. (target-descriptions.o): Update. (xml-tdesc.o): New rule. * xml-tdesc.c, xml-tdesc.h: New files. * remote.c (PACKET_qXfer_features): New enum. (remote_protocol_features): Add qXfer:features:read. (remote_xfer_partial): Handle TARGET_OBJECT_AVAILABLE_FEATURES. (_initialize_remote): Register qXfer:features:read. * target.h (enum target_object): Add TARGET_OBJECT_AVAILABLE_FEATURES. * features/gdb-target.dtd: New file. * linux-i386-low.c (the_low_target): Set arch_string. * linux-x86-64-low.c (the_low_target): Likewise. * linux-low.c (linux_arch_string): New. (linux_target_ops): Add it. * linux-low.h (struct linux_target_ops): Add arch_string. * server.c (write_qxfer_response): Use const void * for DATA. (get_features_xml): New. (handle_query): Handle qXfer:features:read. Report it for qSupported. * target.h (struct target_ops): Add arch_string method. * gdb.texinfo (Target Descriptions): New section. (General Query Packets): Add QPassSignals anchor. Mention qXfer:features:read under qSupported. Expand mentions of qXfer:memory-map:read and QPassSignals. Document qXfer:features:read.
2007-01-09 23:55:10 +01:00
/* From the target. */
if (info->target_desc != NULL)
info->bfd_arch_info = choose_architecture_for_target
(info->bfd_arch_info, tdesc_architecture (info->target_desc));
/* From the default. */
if (info->bfd_arch_info == NULL)
info->bfd_arch_info = default_bfd_arch;
/* "(gdb) set byte-order ...". */
if (info->byte_order == BFD_ENDIAN_UNKNOWN
&& target_byte_order_user != BFD_ENDIAN_UNKNOWN)
info->byte_order = target_byte_order_user;
/* From the INFO struct. */
if (info->byte_order == BFD_ENDIAN_UNKNOWN
&& info->abfd != NULL)
info->byte_order = (bfd_big_endian (info->abfd) ? BFD_ENDIAN_BIG
: bfd_little_endian (info->abfd) ? BFD_ENDIAN_LITTLE
: BFD_ENDIAN_UNKNOWN);
/* From the default. */
if (info->byte_order == BFD_ENDIAN_UNKNOWN)
info->byte_order = default_byte_order;
/* "(gdb) set osabi ...". Handled by gdbarch_lookup_osabi. */
if (info->osabi == GDB_OSABI_UNINITIALIZED)
info->osabi = gdbarch_lookup_osabi (info->abfd);
/* Must have at least filled in the architecture. */
gdb_assert (info->bfd_arch_info != NULL);
}
/* */
2003-06-11 Andrew Cagney <cagney@redhat.com> * xstormy16-tdep.c (xstormy16_push_return_address): Make static. (xstormy16_save_dummy_frame_tos): Make static. (_initialize_xstormy16_tdep): Add declaration. * vax-tdep.c (_initialize_vax_tdep): Add declaration. * v850-tdep.c: Make local functions static. (_initialize_v850_tdep): Add declaration. * sparc-tdep.c: Make local functions static. (_initialize_sparc_tdep): Add declaration. * sh-tdep.c: Make local functions static. (_initialize_sh_tdep): Add declaration. * sh3-rom.c (_initialize_sh3_rom): Add declaration. * s390-tdep.c: Make local functions static. (_initialize_s390_tdep): Add declaration. * dbxread.c (find_stab_function_addr): Make static. * ppc-bdm.c (_initialize_bdm_ppc): Add declaration. * ocd.c (_initialize_remote_ocd): Add declaration. * dink32-rom.c (_initialize_dink32_rom): Add declaration. * ppcbug-rom.c (_initialize_ppcbug_rom): Add declaration. * ns32k-tdep.c (_initialize_ns32k_tdep): Add declaration. * ns32knbsd-tdep.c (_initialize_ns32knbsd_tdep): Add declaration. * mips-tdep.c (_initialize_mips_tdep): Add declaration. * remote-array.c (_initialize_array): Add declaration. (_initialize_remote_monitors): Add declaration. * remote-mips.c: Make local functions static. (_initialize_remote_mips): Add declaration. * mcore-tdep.c: Make all local functions static. (_initialize_mcore_tdep): Add declaration. * dbug-rom.c (_initialize_dbug_rom): Add declaration. * abug-rom.c (_initialize_abug_rom): Add declaration. * rom68k-rom.c (_initialize_rom68k): Add declaration. * cpu32bug-rom.c (_initialize_cpu32bug_rom): Add declaration. * m68k-tdep.c (_initialize_m68k_tdep): Add declaration. * remote-est.c (_initialize_est): Add declaration. * m68hc11-tdep.c (_initialize_m68hc11_tdep): Add declaration. (m68hc11_call_dummy_address): Make static. * ia64-tdep.c: Make local functions static. (_initialize_ia64_tdep): Add declaration. * solib-legacy.c (_initialize_svr4_lm): Add declaration. * monitor.c (monitor_wait_filter): Make static. (_initialize_remote_monitors): Add declaration. * remote-hms.c (_initialize_remote_hms): Add declaration. * remote-e7000.c (fetch_regs_from_dump): Make static. (expect_n): Make static. (_initialize_remote_e7000): Add declaration. * ser-e7kpc.c: Always include "defs.h". (_initialize_ser_e7000pc): Add declaration. * h8300-tdep.c (_initialize_h8300_tdep): Add declaration. * cris-tdep.c: Make all but one function static. (_initialize_cris_tdep): Add declaration. * solib-svr4.c (_initialize_svr4_solib): Add declaration. * solib.c (update_solib_list): Make static. (_initialize_solib): Add declaration. * avr-tdep.c (avr_breakpoint_from_pc): Make static. (_initialize_avr_tdep): Add declaration. * remote-rdi.c (voiddummy): Make static. (_initialize_remote_rdi): Add declaration. * arm-tdep.c (_initialize_arm_tdep): Add declaration. * remote-rdp.c (send_rdp): Make static. (_initialize_remote_rdp): Add declaration. * alpha-tdep.c (_initialize_alpha_tdep): Add declaration.
2003-06-11 15:16:30 +02:00
extern initialize_file_ftype _initialize_gdbarch_utils; /* -Wmissing-prototypes */
void
_initialize_gdbarch_utils (void)
{
struct cmd_list_element *c;
add_setshow_enum_cmd ("endian", class_support,
endian_enum, &set_endian_string, _("\
Set endianness of target."), _("\
Show endianness of target."), NULL,
set_endian, show_endian,
&setlist, &showlist);
}