binutils-gdb/gdb/alpha-linux-tdep.c

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/* Target-dependent code for GNU/Linux on Alpha.
Copyright 2002, 2003 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 2 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, write to the Free Software
Foundation, Inc., 59 Temple Place - Suite 330,
Boston, MA 02111-1307, USA. */
#include "defs.h"
#include "frame.h"
* alpha-linux-tdep.c (alpha_linux_sigtramp_offset_1): New. (alpha_linux_sigtramp_offset): Use it. Make static. (alpha_linux_sigcontext_addr): Handle __NR_rt_sigreturn; update for new frame model. * alpha-mdebug-tdep.c: New file. * alpha-osf1-tdep.c (alpha_call_dummy_address): Move from alpha-tdep.c. (alpha_osf1_init_abi): Install it. * alpha-tdep.c (PROC_*): Move to alpha-mdebug-tdep.c. (linked_proc_desc_table): Remove. (alpha_frame_past_sigtramp_frame): Remove. (alpha_dynamic_sigtramp_offset): Remove. (ALPHA_PROC_SIGTRAMP_MAGIC): Remove. (alpha_proc_desc_is_dyn_sigtramp): Remove. (alpha_set_proc_desc_is_dyn_sigtramp): Remove. (push_sigtramp_desc): Remove. (alpha_cannot_fetch_register): Use ALPHA_FP_REGNUM. (alpha_cannot_store_register): Likewise. (alpha_sigcontext_addr): Remove. (alpha_find_saved_regs): Remove. (alpha_frame_init_saved_regs): Remove. (alpha_init_frame_pc_first): Remove. (read_next_frame_reg): Remove. (alpha_frame_saved_pc): Remove. (alpha_saved_pc_after_call): Remove. (temp_proc_desc, temp_saved_regs): Remove. (alpha_about_to_return): Remove. (cached_proc_desc): Remove. (alpha_frame_chain): Remove. (alpha_print_extra_frame_info): Remove. (alpha_init_extra_frame_info): Remove. (alpha_frame_locals_address): Remove. (alpha_frame_args_address): Remove. (alpha_push_arguments): Use ALPHA_REGISTER_BYTES not sizeof CORE_ADDR. (alpha_push_dummy_frame): Remove. (alpha_pop_frame): Remove. (alpha_after_prologue): Rename from after_prologue; remove mdebug bits. (alpha_read_insn): New. (alpha_skip_prologue): Merge alpha_skip_prologue_internal; adjust for different insn encodings. (alpha_in_lenient_prologue): Remove. (struct alpha_sigtramp_unwind_cache): New. (alpha_sigtramp_frame_unwind_cache): New. (alpha_sigtramp_register_address): New. (alpha_sigtramp_frame_this_id): New. (alpha_sigtramp_frame_prev_register): New. (alpha_sigtramp_frame_unwind): New. (alpha_sigtramp_frame_p): New. (struct alpha_heuristic_unwind_cache): New. (alpha_heuristic_proc_start): Rename from heuristic_proc_start; don't count nop insns that occur between functions. (alpha_heuristic_frame_unwind_cache): New; incorporate much of heuristic_proc_desc, but without the mdebug wrapping. (alpha_heuristic_frame_this_id): New. (alpha_heuristic_frame_prev_register): New. (alpha_heuristic_frame_unwind): New. (alpha_heuristic_frame_p): New. (alpha_heuristic_frame_base_address): New. (alpha_heuristic_frame_base): New. (alpha_unwind_dummy_id): New. (alpha_unwind_pc): New. (alpha_gdbarch_init): Don't set skip_sigtramp_frame. Kill use of frame related deprecated initializations; install replacements. (alpha_dump_tdep): Remove. * alpha-tdep.h (struct gdbarch_tdep): Remove skip_sigtramp_frame. (alpha_read_insn, alpha_after_prologue, alpha_heuristic_frame_unwind_cache, alpha_heuristic_frame_this_id, alpha_heuristic_frame_prev_register, alpha_heuristic_frame_base_address, alpha_mdebug_init_abi): Declare. * config/alpha/alpha-linux.mt (TDEPFILES): Add alpha-mdebug-tdep.o. * config/alpha/tm-alpha.h (PRINT_EXTRA_FRAME_INFO): Remove. * config/alpha/tm-alphalinux.h (SIGTRAMP_START, SIGTRAMP_END): Remove.
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#include "gdb_assert.h"
#include "osabi.h"
#include "alpha-tdep.h"
* alpha-linux-tdep.c (alpha_linux_sigtramp_offset_1): New. (alpha_linux_sigtramp_offset): Use it. Make static. (alpha_linux_sigcontext_addr): Handle __NR_rt_sigreturn; update for new frame model. * alpha-mdebug-tdep.c: New file. * alpha-osf1-tdep.c (alpha_call_dummy_address): Move from alpha-tdep.c. (alpha_osf1_init_abi): Install it. * alpha-tdep.c (PROC_*): Move to alpha-mdebug-tdep.c. (linked_proc_desc_table): Remove. (alpha_frame_past_sigtramp_frame): Remove. (alpha_dynamic_sigtramp_offset): Remove. (ALPHA_PROC_SIGTRAMP_MAGIC): Remove. (alpha_proc_desc_is_dyn_sigtramp): Remove. (alpha_set_proc_desc_is_dyn_sigtramp): Remove. (push_sigtramp_desc): Remove. (alpha_cannot_fetch_register): Use ALPHA_FP_REGNUM. (alpha_cannot_store_register): Likewise. (alpha_sigcontext_addr): Remove. (alpha_find_saved_regs): Remove. (alpha_frame_init_saved_regs): Remove. (alpha_init_frame_pc_first): Remove. (read_next_frame_reg): Remove. (alpha_frame_saved_pc): Remove. (alpha_saved_pc_after_call): Remove. (temp_proc_desc, temp_saved_regs): Remove. (alpha_about_to_return): Remove. (cached_proc_desc): Remove. (alpha_frame_chain): Remove. (alpha_print_extra_frame_info): Remove. (alpha_init_extra_frame_info): Remove. (alpha_frame_locals_address): Remove. (alpha_frame_args_address): Remove. (alpha_push_arguments): Use ALPHA_REGISTER_BYTES not sizeof CORE_ADDR. (alpha_push_dummy_frame): Remove. (alpha_pop_frame): Remove. (alpha_after_prologue): Rename from after_prologue; remove mdebug bits. (alpha_read_insn): New. (alpha_skip_prologue): Merge alpha_skip_prologue_internal; adjust for different insn encodings. (alpha_in_lenient_prologue): Remove. (struct alpha_sigtramp_unwind_cache): New. (alpha_sigtramp_frame_unwind_cache): New. (alpha_sigtramp_register_address): New. (alpha_sigtramp_frame_this_id): New. (alpha_sigtramp_frame_prev_register): New. (alpha_sigtramp_frame_unwind): New. (alpha_sigtramp_frame_p): New. (struct alpha_heuristic_unwind_cache): New. (alpha_heuristic_proc_start): Rename from heuristic_proc_start; don't count nop insns that occur between functions. (alpha_heuristic_frame_unwind_cache): New; incorporate much of heuristic_proc_desc, but without the mdebug wrapping. (alpha_heuristic_frame_this_id): New. (alpha_heuristic_frame_prev_register): New. (alpha_heuristic_frame_unwind): New. (alpha_heuristic_frame_p): New. (alpha_heuristic_frame_base_address): New. (alpha_heuristic_frame_base): New. (alpha_unwind_dummy_id): New. (alpha_unwind_pc): New. (alpha_gdbarch_init): Don't set skip_sigtramp_frame. Kill use of frame related deprecated initializations; install replacements. (alpha_dump_tdep): Remove. * alpha-tdep.h (struct gdbarch_tdep): Remove skip_sigtramp_frame. (alpha_read_insn, alpha_after_prologue, alpha_heuristic_frame_unwind_cache, alpha_heuristic_frame_this_id, alpha_heuristic_frame_prev_register, alpha_heuristic_frame_base_address, alpha_mdebug_init_abi): Declare. * config/alpha/alpha-linux.mt (TDEPFILES): Add alpha-mdebug-tdep.o. * config/alpha/tm-alpha.h (PRINT_EXTRA_FRAME_INFO): Remove. * config/alpha/tm-alphalinux.h (SIGTRAMP_START, SIGTRAMP_END): Remove.
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/* Under GNU/Linux, signal handler invocations can be identified by
the designated code sequence that is used to return from a signal
handler. In particular, the return address of a signal handler
* alpha-linux-tdep.c (alpha_linux_sigtramp_offset_1): New. (alpha_linux_sigtramp_offset): Use it. Make static. (alpha_linux_sigcontext_addr): Handle __NR_rt_sigreturn; update for new frame model. * alpha-mdebug-tdep.c: New file. * alpha-osf1-tdep.c (alpha_call_dummy_address): Move from alpha-tdep.c. (alpha_osf1_init_abi): Install it. * alpha-tdep.c (PROC_*): Move to alpha-mdebug-tdep.c. (linked_proc_desc_table): Remove. (alpha_frame_past_sigtramp_frame): Remove. (alpha_dynamic_sigtramp_offset): Remove. (ALPHA_PROC_SIGTRAMP_MAGIC): Remove. (alpha_proc_desc_is_dyn_sigtramp): Remove. (alpha_set_proc_desc_is_dyn_sigtramp): Remove. (push_sigtramp_desc): Remove. (alpha_cannot_fetch_register): Use ALPHA_FP_REGNUM. (alpha_cannot_store_register): Likewise. (alpha_sigcontext_addr): Remove. (alpha_find_saved_regs): Remove. (alpha_frame_init_saved_regs): Remove. (alpha_init_frame_pc_first): Remove. (read_next_frame_reg): Remove. (alpha_frame_saved_pc): Remove. (alpha_saved_pc_after_call): Remove. (temp_proc_desc, temp_saved_regs): Remove. (alpha_about_to_return): Remove. (cached_proc_desc): Remove. (alpha_frame_chain): Remove. (alpha_print_extra_frame_info): Remove. (alpha_init_extra_frame_info): Remove. (alpha_frame_locals_address): Remove. (alpha_frame_args_address): Remove. (alpha_push_arguments): Use ALPHA_REGISTER_BYTES not sizeof CORE_ADDR. (alpha_push_dummy_frame): Remove. (alpha_pop_frame): Remove. (alpha_after_prologue): Rename from after_prologue; remove mdebug bits. (alpha_read_insn): New. (alpha_skip_prologue): Merge alpha_skip_prologue_internal; adjust for different insn encodings. (alpha_in_lenient_prologue): Remove. (struct alpha_sigtramp_unwind_cache): New. (alpha_sigtramp_frame_unwind_cache): New. (alpha_sigtramp_register_address): New. (alpha_sigtramp_frame_this_id): New. (alpha_sigtramp_frame_prev_register): New. (alpha_sigtramp_frame_unwind): New. (alpha_sigtramp_frame_p): New. (struct alpha_heuristic_unwind_cache): New. (alpha_heuristic_proc_start): Rename from heuristic_proc_start; don't count nop insns that occur between functions. (alpha_heuristic_frame_unwind_cache): New; incorporate much of heuristic_proc_desc, but without the mdebug wrapping. (alpha_heuristic_frame_this_id): New. (alpha_heuristic_frame_prev_register): New. (alpha_heuristic_frame_unwind): New. (alpha_heuristic_frame_p): New. (alpha_heuristic_frame_base_address): New. (alpha_heuristic_frame_base): New. (alpha_unwind_dummy_id): New. (alpha_unwind_pc): New. (alpha_gdbarch_init): Don't set skip_sigtramp_frame. Kill use of frame related deprecated initializations; install replacements. (alpha_dump_tdep): Remove. * alpha-tdep.h (struct gdbarch_tdep): Remove skip_sigtramp_frame. (alpha_read_insn, alpha_after_prologue, alpha_heuristic_frame_unwind_cache, alpha_heuristic_frame_this_id, alpha_heuristic_frame_prev_register, alpha_heuristic_frame_base_address, alpha_mdebug_init_abi): Declare. * config/alpha/alpha-linux.mt (TDEPFILES): Add alpha-mdebug-tdep.o. * config/alpha/tm-alpha.h (PRINT_EXTRA_FRAME_INFO): Remove. * config/alpha/tm-alphalinux.h (SIGTRAMP_START, SIGTRAMP_END): Remove.
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points to a sequence that copies $sp to $16, loads $0 with the
appropriate syscall number, and finally enters the kernel.
This is somewhat complicated in that:
(1) the expansion of the "mov" assembler macro has changed over
time, from "bis src,src,dst" to "bis zero,src,dst",
(2) the kernel has changed from using "addq" to "lda" to load the
syscall number,
(3) there is a "normal" sigreturn and an "rt" sigreturn which
has a different stack layout.
*/
static long
alpha_linux_sigtramp_offset_1 (CORE_ADDR pc)
{
* alpha-linux-tdep.c (alpha_linux_sigtramp_offset_1): New. (alpha_linux_sigtramp_offset): Use it. Make static. (alpha_linux_sigcontext_addr): Handle __NR_rt_sigreturn; update for new frame model. * alpha-mdebug-tdep.c: New file. * alpha-osf1-tdep.c (alpha_call_dummy_address): Move from alpha-tdep.c. (alpha_osf1_init_abi): Install it. * alpha-tdep.c (PROC_*): Move to alpha-mdebug-tdep.c. (linked_proc_desc_table): Remove. (alpha_frame_past_sigtramp_frame): Remove. (alpha_dynamic_sigtramp_offset): Remove. (ALPHA_PROC_SIGTRAMP_MAGIC): Remove. (alpha_proc_desc_is_dyn_sigtramp): Remove. (alpha_set_proc_desc_is_dyn_sigtramp): Remove. (push_sigtramp_desc): Remove. (alpha_cannot_fetch_register): Use ALPHA_FP_REGNUM. (alpha_cannot_store_register): Likewise. (alpha_sigcontext_addr): Remove. (alpha_find_saved_regs): Remove. (alpha_frame_init_saved_regs): Remove. (alpha_init_frame_pc_first): Remove. (read_next_frame_reg): Remove. (alpha_frame_saved_pc): Remove. (alpha_saved_pc_after_call): Remove. (temp_proc_desc, temp_saved_regs): Remove. (alpha_about_to_return): Remove. (cached_proc_desc): Remove. (alpha_frame_chain): Remove. (alpha_print_extra_frame_info): Remove. (alpha_init_extra_frame_info): Remove. (alpha_frame_locals_address): Remove. (alpha_frame_args_address): Remove. (alpha_push_arguments): Use ALPHA_REGISTER_BYTES not sizeof CORE_ADDR. (alpha_push_dummy_frame): Remove. (alpha_pop_frame): Remove. (alpha_after_prologue): Rename from after_prologue; remove mdebug bits. (alpha_read_insn): New. (alpha_skip_prologue): Merge alpha_skip_prologue_internal; adjust for different insn encodings. (alpha_in_lenient_prologue): Remove. (struct alpha_sigtramp_unwind_cache): New. (alpha_sigtramp_frame_unwind_cache): New. (alpha_sigtramp_register_address): New. (alpha_sigtramp_frame_this_id): New. (alpha_sigtramp_frame_prev_register): New. (alpha_sigtramp_frame_unwind): New. (alpha_sigtramp_frame_p): New. (struct alpha_heuristic_unwind_cache): New. (alpha_heuristic_proc_start): Rename from heuristic_proc_start; don't count nop insns that occur between functions. (alpha_heuristic_frame_unwind_cache): New; incorporate much of heuristic_proc_desc, but without the mdebug wrapping. (alpha_heuristic_frame_this_id): New. (alpha_heuristic_frame_prev_register): New. (alpha_heuristic_frame_unwind): New. (alpha_heuristic_frame_p): New. (alpha_heuristic_frame_base_address): New. (alpha_heuristic_frame_base): New. (alpha_unwind_dummy_id): New. (alpha_unwind_pc): New. (alpha_gdbarch_init): Don't set skip_sigtramp_frame. Kill use of frame related deprecated initializations; install replacements. (alpha_dump_tdep): Remove. * alpha-tdep.h (struct gdbarch_tdep): Remove skip_sigtramp_frame. (alpha_read_insn, alpha_after_prologue, alpha_heuristic_frame_unwind_cache, alpha_heuristic_frame_this_id, alpha_heuristic_frame_prev_register, alpha_heuristic_frame_base_address, alpha_mdebug_init_abi): Declare. * config/alpha/alpha-linux.mt (TDEPFILES): Add alpha-mdebug-tdep.o. * config/alpha/tm-alpha.h (PRINT_EXTRA_FRAME_INFO): Remove. * config/alpha/tm-alphalinux.h (SIGTRAMP_START, SIGTRAMP_END): Remove.
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switch (alpha_read_insn (pc))
{
case 0x47de0410: /* bis $30,$30,$16 */
case 0x47fe0410: /* bis $31,$30,$16 */
return 0;
* alpha-linux-tdep.c (alpha_linux_sigtramp_offset_1): New. (alpha_linux_sigtramp_offset): Use it. Make static. (alpha_linux_sigcontext_addr): Handle __NR_rt_sigreturn; update for new frame model. * alpha-mdebug-tdep.c: New file. * alpha-osf1-tdep.c (alpha_call_dummy_address): Move from alpha-tdep.c. (alpha_osf1_init_abi): Install it. * alpha-tdep.c (PROC_*): Move to alpha-mdebug-tdep.c. (linked_proc_desc_table): Remove. (alpha_frame_past_sigtramp_frame): Remove. (alpha_dynamic_sigtramp_offset): Remove. (ALPHA_PROC_SIGTRAMP_MAGIC): Remove. (alpha_proc_desc_is_dyn_sigtramp): Remove. (alpha_set_proc_desc_is_dyn_sigtramp): Remove. (push_sigtramp_desc): Remove. (alpha_cannot_fetch_register): Use ALPHA_FP_REGNUM. (alpha_cannot_store_register): Likewise. (alpha_sigcontext_addr): Remove. (alpha_find_saved_regs): Remove. (alpha_frame_init_saved_regs): Remove. (alpha_init_frame_pc_first): Remove. (read_next_frame_reg): Remove. (alpha_frame_saved_pc): Remove. (alpha_saved_pc_after_call): Remove. (temp_proc_desc, temp_saved_regs): Remove. (alpha_about_to_return): Remove. (cached_proc_desc): Remove. (alpha_frame_chain): Remove. (alpha_print_extra_frame_info): Remove. (alpha_init_extra_frame_info): Remove. (alpha_frame_locals_address): Remove. (alpha_frame_args_address): Remove. (alpha_push_arguments): Use ALPHA_REGISTER_BYTES not sizeof CORE_ADDR. (alpha_push_dummy_frame): Remove. (alpha_pop_frame): Remove. (alpha_after_prologue): Rename from after_prologue; remove mdebug bits. (alpha_read_insn): New. (alpha_skip_prologue): Merge alpha_skip_prologue_internal; adjust for different insn encodings. (alpha_in_lenient_prologue): Remove. (struct alpha_sigtramp_unwind_cache): New. (alpha_sigtramp_frame_unwind_cache): New. (alpha_sigtramp_register_address): New. (alpha_sigtramp_frame_this_id): New. (alpha_sigtramp_frame_prev_register): New. (alpha_sigtramp_frame_unwind): New. (alpha_sigtramp_frame_p): New. (struct alpha_heuristic_unwind_cache): New. (alpha_heuristic_proc_start): Rename from heuristic_proc_start; don't count nop insns that occur between functions. (alpha_heuristic_frame_unwind_cache): New; incorporate much of heuristic_proc_desc, but without the mdebug wrapping. (alpha_heuristic_frame_this_id): New. (alpha_heuristic_frame_prev_register): New. (alpha_heuristic_frame_unwind): New. (alpha_heuristic_frame_p): New. (alpha_heuristic_frame_base_address): New. (alpha_heuristic_frame_base): New. (alpha_unwind_dummy_id): New. (alpha_unwind_pc): New. (alpha_gdbarch_init): Don't set skip_sigtramp_frame. Kill use of frame related deprecated initializations; install replacements. (alpha_dump_tdep): Remove. * alpha-tdep.h (struct gdbarch_tdep): Remove skip_sigtramp_frame. (alpha_read_insn, alpha_after_prologue, alpha_heuristic_frame_unwind_cache, alpha_heuristic_frame_this_id, alpha_heuristic_frame_prev_register, alpha_heuristic_frame_base_address, alpha_mdebug_init_abi): Declare. * config/alpha/alpha-linux.mt (TDEPFILES): Add alpha-mdebug-tdep.o. * config/alpha/tm-alpha.h (PRINT_EXTRA_FRAME_INFO): Remove. * config/alpha/tm-alphalinux.h (SIGTRAMP_START, SIGTRAMP_END): Remove.
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case 0x43ecf400: /* addq $31,103,$0 */
case 0x201f0067: /* lda $0,103($31) */
case 0x201f015f: /* lda $0,351($31) */
return 4;
case 0x00000083: /* call_pal callsys */
return 8;
default:
return -1;
}
* alpha-linux-tdep.c (alpha_linux_sigtramp_offset_1): New. (alpha_linux_sigtramp_offset): Use it. Make static. (alpha_linux_sigcontext_addr): Handle __NR_rt_sigreturn; update for new frame model. * alpha-mdebug-tdep.c: New file. * alpha-osf1-tdep.c (alpha_call_dummy_address): Move from alpha-tdep.c. (alpha_osf1_init_abi): Install it. * alpha-tdep.c (PROC_*): Move to alpha-mdebug-tdep.c. (linked_proc_desc_table): Remove. (alpha_frame_past_sigtramp_frame): Remove. (alpha_dynamic_sigtramp_offset): Remove. (ALPHA_PROC_SIGTRAMP_MAGIC): Remove. (alpha_proc_desc_is_dyn_sigtramp): Remove. (alpha_set_proc_desc_is_dyn_sigtramp): Remove. (push_sigtramp_desc): Remove. (alpha_cannot_fetch_register): Use ALPHA_FP_REGNUM. (alpha_cannot_store_register): Likewise. (alpha_sigcontext_addr): Remove. (alpha_find_saved_regs): Remove. (alpha_frame_init_saved_regs): Remove. (alpha_init_frame_pc_first): Remove. (read_next_frame_reg): Remove. (alpha_frame_saved_pc): Remove. (alpha_saved_pc_after_call): Remove. (temp_proc_desc, temp_saved_regs): Remove. (alpha_about_to_return): Remove. (cached_proc_desc): Remove. (alpha_frame_chain): Remove. (alpha_print_extra_frame_info): Remove. (alpha_init_extra_frame_info): Remove. (alpha_frame_locals_address): Remove. (alpha_frame_args_address): Remove. (alpha_push_arguments): Use ALPHA_REGISTER_BYTES not sizeof CORE_ADDR. (alpha_push_dummy_frame): Remove. (alpha_pop_frame): Remove. (alpha_after_prologue): Rename from after_prologue; remove mdebug bits. (alpha_read_insn): New. (alpha_skip_prologue): Merge alpha_skip_prologue_internal; adjust for different insn encodings. (alpha_in_lenient_prologue): Remove. (struct alpha_sigtramp_unwind_cache): New. (alpha_sigtramp_frame_unwind_cache): New. (alpha_sigtramp_register_address): New. (alpha_sigtramp_frame_this_id): New. (alpha_sigtramp_frame_prev_register): New. (alpha_sigtramp_frame_unwind): New. (alpha_sigtramp_frame_p): New. (struct alpha_heuristic_unwind_cache): New. (alpha_heuristic_proc_start): Rename from heuristic_proc_start; don't count nop insns that occur between functions. (alpha_heuristic_frame_unwind_cache): New; incorporate much of heuristic_proc_desc, but without the mdebug wrapping. (alpha_heuristic_frame_this_id): New. (alpha_heuristic_frame_prev_register): New. (alpha_heuristic_frame_unwind): New. (alpha_heuristic_frame_p): New. (alpha_heuristic_frame_base_address): New. (alpha_heuristic_frame_base): New. (alpha_unwind_dummy_id): New. (alpha_unwind_pc): New. (alpha_gdbarch_init): Don't set skip_sigtramp_frame. Kill use of frame related deprecated initializations; install replacements. (alpha_dump_tdep): Remove. * alpha-tdep.h (struct gdbarch_tdep): Remove skip_sigtramp_frame. (alpha_read_insn, alpha_after_prologue, alpha_heuristic_frame_unwind_cache, alpha_heuristic_frame_this_id, alpha_heuristic_frame_prev_register, alpha_heuristic_frame_base_address, alpha_mdebug_init_abi): Declare. * config/alpha/alpha-linux.mt (TDEPFILES): Add alpha-mdebug-tdep.o. * config/alpha/tm-alpha.h (PRINT_EXTRA_FRAME_INFO): Remove. * config/alpha/tm-alphalinux.h (SIGTRAMP_START, SIGTRAMP_END): Remove.
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}
static LONGEST
alpha_linux_sigtramp_offset (CORE_ADDR pc)
{
long i, off;
if (pc & 3)
return -1;
/* Guess where we might be in the sequence. */
off = alpha_linux_sigtramp_offset_1 (pc);
if (off < 0)
return -1;
/* Verify that the other two insns of the sequence are as we expect. */
pc -= off;
* alpha-linux-tdep.c (alpha_linux_sigtramp_offset_1): New. (alpha_linux_sigtramp_offset): Use it. Make static. (alpha_linux_sigcontext_addr): Handle __NR_rt_sigreturn; update for new frame model. * alpha-mdebug-tdep.c: New file. * alpha-osf1-tdep.c (alpha_call_dummy_address): Move from alpha-tdep.c. (alpha_osf1_init_abi): Install it. * alpha-tdep.c (PROC_*): Move to alpha-mdebug-tdep.c. (linked_proc_desc_table): Remove. (alpha_frame_past_sigtramp_frame): Remove. (alpha_dynamic_sigtramp_offset): Remove. (ALPHA_PROC_SIGTRAMP_MAGIC): Remove. (alpha_proc_desc_is_dyn_sigtramp): Remove. (alpha_set_proc_desc_is_dyn_sigtramp): Remove. (push_sigtramp_desc): Remove. (alpha_cannot_fetch_register): Use ALPHA_FP_REGNUM. (alpha_cannot_store_register): Likewise. (alpha_sigcontext_addr): Remove. (alpha_find_saved_regs): Remove. (alpha_frame_init_saved_regs): Remove. (alpha_init_frame_pc_first): Remove. (read_next_frame_reg): Remove. (alpha_frame_saved_pc): Remove. (alpha_saved_pc_after_call): Remove. (temp_proc_desc, temp_saved_regs): Remove. (alpha_about_to_return): Remove. (cached_proc_desc): Remove. (alpha_frame_chain): Remove. (alpha_print_extra_frame_info): Remove. (alpha_init_extra_frame_info): Remove. (alpha_frame_locals_address): Remove. (alpha_frame_args_address): Remove. (alpha_push_arguments): Use ALPHA_REGISTER_BYTES not sizeof CORE_ADDR. (alpha_push_dummy_frame): Remove. (alpha_pop_frame): Remove. (alpha_after_prologue): Rename from after_prologue; remove mdebug bits. (alpha_read_insn): New. (alpha_skip_prologue): Merge alpha_skip_prologue_internal; adjust for different insn encodings. (alpha_in_lenient_prologue): Remove. (struct alpha_sigtramp_unwind_cache): New. (alpha_sigtramp_frame_unwind_cache): New. (alpha_sigtramp_register_address): New. (alpha_sigtramp_frame_this_id): New. (alpha_sigtramp_frame_prev_register): New. (alpha_sigtramp_frame_unwind): New. (alpha_sigtramp_frame_p): New. (struct alpha_heuristic_unwind_cache): New. (alpha_heuristic_proc_start): Rename from heuristic_proc_start; don't count nop insns that occur between functions. (alpha_heuristic_frame_unwind_cache): New; incorporate much of heuristic_proc_desc, but without the mdebug wrapping. (alpha_heuristic_frame_this_id): New. (alpha_heuristic_frame_prev_register): New. (alpha_heuristic_frame_unwind): New. (alpha_heuristic_frame_p): New. (alpha_heuristic_frame_base_address): New. (alpha_heuristic_frame_base): New. (alpha_unwind_dummy_id): New. (alpha_unwind_pc): New. (alpha_gdbarch_init): Don't set skip_sigtramp_frame. Kill use of frame related deprecated initializations; install replacements. (alpha_dump_tdep): Remove. * alpha-tdep.h (struct gdbarch_tdep): Remove skip_sigtramp_frame. (alpha_read_insn, alpha_after_prologue, alpha_heuristic_frame_unwind_cache, alpha_heuristic_frame_this_id, alpha_heuristic_frame_prev_register, alpha_heuristic_frame_base_address, alpha_mdebug_init_abi): Declare. * config/alpha/alpha-linux.mt (TDEPFILES): Add alpha-mdebug-tdep.o. * config/alpha/tm-alpha.h (PRINT_EXTRA_FRAME_INFO): Remove. * config/alpha/tm-alphalinux.h (SIGTRAMP_START, SIGTRAMP_END): Remove.
2003-05-30 01:02:53 +02:00
for (i = 0; i < 12; i += 4)
{
* alpha-linux-tdep.c (alpha_linux_sigtramp_offset_1): New. (alpha_linux_sigtramp_offset): Use it. Make static. (alpha_linux_sigcontext_addr): Handle __NR_rt_sigreturn; update for new frame model. * alpha-mdebug-tdep.c: New file. * alpha-osf1-tdep.c (alpha_call_dummy_address): Move from alpha-tdep.c. (alpha_osf1_init_abi): Install it. * alpha-tdep.c (PROC_*): Move to alpha-mdebug-tdep.c. (linked_proc_desc_table): Remove. (alpha_frame_past_sigtramp_frame): Remove. (alpha_dynamic_sigtramp_offset): Remove. (ALPHA_PROC_SIGTRAMP_MAGIC): Remove. (alpha_proc_desc_is_dyn_sigtramp): Remove. (alpha_set_proc_desc_is_dyn_sigtramp): Remove. (push_sigtramp_desc): Remove. (alpha_cannot_fetch_register): Use ALPHA_FP_REGNUM. (alpha_cannot_store_register): Likewise. (alpha_sigcontext_addr): Remove. (alpha_find_saved_regs): Remove. (alpha_frame_init_saved_regs): Remove. (alpha_init_frame_pc_first): Remove. (read_next_frame_reg): Remove. (alpha_frame_saved_pc): Remove. (alpha_saved_pc_after_call): Remove. (temp_proc_desc, temp_saved_regs): Remove. (alpha_about_to_return): Remove. (cached_proc_desc): Remove. (alpha_frame_chain): Remove. (alpha_print_extra_frame_info): Remove. (alpha_init_extra_frame_info): Remove. (alpha_frame_locals_address): Remove. (alpha_frame_args_address): Remove. (alpha_push_arguments): Use ALPHA_REGISTER_BYTES not sizeof CORE_ADDR. (alpha_push_dummy_frame): Remove. (alpha_pop_frame): Remove. (alpha_after_prologue): Rename from after_prologue; remove mdebug bits. (alpha_read_insn): New. (alpha_skip_prologue): Merge alpha_skip_prologue_internal; adjust for different insn encodings. (alpha_in_lenient_prologue): Remove. (struct alpha_sigtramp_unwind_cache): New. (alpha_sigtramp_frame_unwind_cache): New. (alpha_sigtramp_register_address): New. (alpha_sigtramp_frame_this_id): New. (alpha_sigtramp_frame_prev_register): New. (alpha_sigtramp_frame_unwind): New. (alpha_sigtramp_frame_p): New. (struct alpha_heuristic_unwind_cache): New. (alpha_heuristic_proc_start): Rename from heuristic_proc_start; don't count nop insns that occur between functions. (alpha_heuristic_frame_unwind_cache): New; incorporate much of heuristic_proc_desc, but without the mdebug wrapping. (alpha_heuristic_frame_this_id): New. (alpha_heuristic_frame_prev_register): New. (alpha_heuristic_frame_unwind): New. (alpha_heuristic_frame_p): New. (alpha_heuristic_frame_base_address): New. (alpha_heuristic_frame_base): New. (alpha_unwind_dummy_id): New. (alpha_unwind_pc): New. (alpha_gdbarch_init): Don't set skip_sigtramp_frame. Kill use of frame related deprecated initializations; install replacements. (alpha_dump_tdep): Remove. * alpha-tdep.h (struct gdbarch_tdep): Remove skip_sigtramp_frame. (alpha_read_insn, alpha_after_prologue, alpha_heuristic_frame_unwind_cache, alpha_heuristic_frame_this_id, alpha_heuristic_frame_prev_register, alpha_heuristic_frame_base_address, alpha_mdebug_init_abi): Declare. * config/alpha/alpha-linux.mt (TDEPFILES): Add alpha-mdebug-tdep.o. * config/alpha/tm-alpha.h (PRINT_EXTRA_FRAME_INFO): Remove. * config/alpha/tm-alphalinux.h (SIGTRAMP_START, SIGTRAMP_END): Remove.
2003-05-30 01:02:53 +02:00
if (i == off)
continue;
if (alpha_linux_sigtramp_offset_1 (pc + i) != i)
return -1;
}
* alpha-linux-tdep.c (alpha_linux_sigtramp_offset_1): New. (alpha_linux_sigtramp_offset): Use it. Make static. (alpha_linux_sigcontext_addr): Handle __NR_rt_sigreturn; update for new frame model. * alpha-mdebug-tdep.c: New file. * alpha-osf1-tdep.c (alpha_call_dummy_address): Move from alpha-tdep.c. (alpha_osf1_init_abi): Install it. * alpha-tdep.c (PROC_*): Move to alpha-mdebug-tdep.c. (linked_proc_desc_table): Remove. (alpha_frame_past_sigtramp_frame): Remove. (alpha_dynamic_sigtramp_offset): Remove. (ALPHA_PROC_SIGTRAMP_MAGIC): Remove. (alpha_proc_desc_is_dyn_sigtramp): Remove. (alpha_set_proc_desc_is_dyn_sigtramp): Remove. (push_sigtramp_desc): Remove. (alpha_cannot_fetch_register): Use ALPHA_FP_REGNUM. (alpha_cannot_store_register): Likewise. (alpha_sigcontext_addr): Remove. (alpha_find_saved_regs): Remove. (alpha_frame_init_saved_regs): Remove. (alpha_init_frame_pc_first): Remove. (read_next_frame_reg): Remove. (alpha_frame_saved_pc): Remove. (alpha_saved_pc_after_call): Remove. (temp_proc_desc, temp_saved_regs): Remove. (alpha_about_to_return): Remove. (cached_proc_desc): Remove. (alpha_frame_chain): Remove. (alpha_print_extra_frame_info): Remove. (alpha_init_extra_frame_info): Remove. (alpha_frame_locals_address): Remove. (alpha_frame_args_address): Remove. (alpha_push_arguments): Use ALPHA_REGISTER_BYTES not sizeof CORE_ADDR. (alpha_push_dummy_frame): Remove. (alpha_pop_frame): Remove. (alpha_after_prologue): Rename from after_prologue; remove mdebug bits. (alpha_read_insn): New. (alpha_skip_prologue): Merge alpha_skip_prologue_internal; adjust for different insn encodings. (alpha_in_lenient_prologue): Remove. (struct alpha_sigtramp_unwind_cache): New. (alpha_sigtramp_frame_unwind_cache): New. (alpha_sigtramp_register_address): New. (alpha_sigtramp_frame_this_id): New. (alpha_sigtramp_frame_prev_register): New. (alpha_sigtramp_frame_unwind): New. (alpha_sigtramp_frame_p): New. (struct alpha_heuristic_unwind_cache): New. (alpha_heuristic_proc_start): Rename from heuristic_proc_start; don't count nop insns that occur between functions. (alpha_heuristic_frame_unwind_cache): New; incorporate much of heuristic_proc_desc, but without the mdebug wrapping. (alpha_heuristic_frame_this_id): New. (alpha_heuristic_frame_prev_register): New. (alpha_heuristic_frame_unwind): New. (alpha_heuristic_frame_p): New. (alpha_heuristic_frame_base_address): New. (alpha_heuristic_frame_base): New. (alpha_unwind_dummy_id): New. (alpha_unwind_pc): New. (alpha_gdbarch_init): Don't set skip_sigtramp_frame. Kill use of frame related deprecated initializations; install replacements. (alpha_dump_tdep): Remove. * alpha-tdep.h (struct gdbarch_tdep): Remove skip_sigtramp_frame. (alpha_read_insn, alpha_after_prologue, alpha_heuristic_frame_unwind_cache, alpha_heuristic_frame_this_id, alpha_heuristic_frame_prev_register, alpha_heuristic_frame_base_address, alpha_mdebug_init_abi): Declare. * config/alpha/alpha-linux.mt (TDEPFILES): Add alpha-mdebug-tdep.o. * config/alpha/tm-alpha.h (PRINT_EXTRA_FRAME_INFO): Remove. * config/alpha/tm-alphalinux.h (SIGTRAMP_START, SIGTRAMP_END): Remove.
2003-05-30 01:02:53 +02:00
return off;
}
static int
alpha_linux_pc_in_sigtramp (CORE_ADDR pc, char *func_name)
{
* alpha-linux-tdep.c (alpha_linux_sigtramp_offset_1): New. (alpha_linux_sigtramp_offset): Use it. Make static. (alpha_linux_sigcontext_addr): Handle __NR_rt_sigreturn; update for new frame model. * alpha-mdebug-tdep.c: New file. * alpha-osf1-tdep.c (alpha_call_dummy_address): Move from alpha-tdep.c. (alpha_osf1_init_abi): Install it. * alpha-tdep.c (PROC_*): Move to alpha-mdebug-tdep.c. (linked_proc_desc_table): Remove. (alpha_frame_past_sigtramp_frame): Remove. (alpha_dynamic_sigtramp_offset): Remove. (ALPHA_PROC_SIGTRAMP_MAGIC): Remove. (alpha_proc_desc_is_dyn_sigtramp): Remove. (alpha_set_proc_desc_is_dyn_sigtramp): Remove. (push_sigtramp_desc): Remove. (alpha_cannot_fetch_register): Use ALPHA_FP_REGNUM. (alpha_cannot_store_register): Likewise. (alpha_sigcontext_addr): Remove. (alpha_find_saved_regs): Remove. (alpha_frame_init_saved_regs): Remove. (alpha_init_frame_pc_first): Remove. (read_next_frame_reg): Remove. (alpha_frame_saved_pc): Remove. (alpha_saved_pc_after_call): Remove. (temp_proc_desc, temp_saved_regs): Remove. (alpha_about_to_return): Remove. (cached_proc_desc): Remove. (alpha_frame_chain): Remove. (alpha_print_extra_frame_info): Remove. (alpha_init_extra_frame_info): Remove. (alpha_frame_locals_address): Remove. (alpha_frame_args_address): Remove. (alpha_push_arguments): Use ALPHA_REGISTER_BYTES not sizeof CORE_ADDR. (alpha_push_dummy_frame): Remove. (alpha_pop_frame): Remove. (alpha_after_prologue): Rename from after_prologue; remove mdebug bits. (alpha_read_insn): New. (alpha_skip_prologue): Merge alpha_skip_prologue_internal; adjust for different insn encodings. (alpha_in_lenient_prologue): Remove. (struct alpha_sigtramp_unwind_cache): New. (alpha_sigtramp_frame_unwind_cache): New. (alpha_sigtramp_register_address): New. (alpha_sigtramp_frame_this_id): New. (alpha_sigtramp_frame_prev_register): New. (alpha_sigtramp_frame_unwind): New. (alpha_sigtramp_frame_p): New. (struct alpha_heuristic_unwind_cache): New. (alpha_heuristic_proc_start): Rename from heuristic_proc_start; don't count nop insns that occur between functions. (alpha_heuristic_frame_unwind_cache): New; incorporate much of heuristic_proc_desc, but without the mdebug wrapping. (alpha_heuristic_frame_this_id): New. (alpha_heuristic_frame_prev_register): New. (alpha_heuristic_frame_unwind): New. (alpha_heuristic_frame_p): New. (alpha_heuristic_frame_base_address): New. (alpha_heuristic_frame_base): New. (alpha_unwind_dummy_id): New. (alpha_unwind_pc): New. (alpha_gdbarch_init): Don't set skip_sigtramp_frame. Kill use of frame related deprecated initializations; install replacements. (alpha_dump_tdep): Remove. * alpha-tdep.h (struct gdbarch_tdep): Remove skip_sigtramp_frame. (alpha_read_insn, alpha_after_prologue, alpha_heuristic_frame_unwind_cache, alpha_heuristic_frame_this_id, alpha_heuristic_frame_prev_register, alpha_heuristic_frame_base_address, alpha_mdebug_init_abi): Declare. * config/alpha/alpha-linux.mt (TDEPFILES): Add alpha-mdebug-tdep.o. * config/alpha/tm-alpha.h (PRINT_EXTRA_FRAME_INFO): Remove. * config/alpha/tm-alphalinux.h (SIGTRAMP_START, SIGTRAMP_END): Remove.
2003-05-30 01:02:53 +02:00
return alpha_linux_sigtramp_offset (pc) >= 0;
}
static CORE_ADDR
* alpha-linux-tdep.c (alpha_linux_sigtramp_offset_1): New. (alpha_linux_sigtramp_offset): Use it. Make static. (alpha_linux_sigcontext_addr): Handle __NR_rt_sigreturn; update for new frame model. * alpha-mdebug-tdep.c: New file. * alpha-osf1-tdep.c (alpha_call_dummy_address): Move from alpha-tdep.c. (alpha_osf1_init_abi): Install it. * alpha-tdep.c (PROC_*): Move to alpha-mdebug-tdep.c. (linked_proc_desc_table): Remove. (alpha_frame_past_sigtramp_frame): Remove. (alpha_dynamic_sigtramp_offset): Remove. (ALPHA_PROC_SIGTRAMP_MAGIC): Remove. (alpha_proc_desc_is_dyn_sigtramp): Remove. (alpha_set_proc_desc_is_dyn_sigtramp): Remove. (push_sigtramp_desc): Remove. (alpha_cannot_fetch_register): Use ALPHA_FP_REGNUM. (alpha_cannot_store_register): Likewise. (alpha_sigcontext_addr): Remove. (alpha_find_saved_regs): Remove. (alpha_frame_init_saved_regs): Remove. (alpha_init_frame_pc_first): Remove. (read_next_frame_reg): Remove. (alpha_frame_saved_pc): Remove. (alpha_saved_pc_after_call): Remove. (temp_proc_desc, temp_saved_regs): Remove. (alpha_about_to_return): Remove. (cached_proc_desc): Remove. (alpha_frame_chain): Remove. (alpha_print_extra_frame_info): Remove. (alpha_init_extra_frame_info): Remove. (alpha_frame_locals_address): Remove. (alpha_frame_args_address): Remove. (alpha_push_arguments): Use ALPHA_REGISTER_BYTES not sizeof CORE_ADDR. (alpha_push_dummy_frame): Remove. (alpha_pop_frame): Remove. (alpha_after_prologue): Rename from after_prologue; remove mdebug bits. (alpha_read_insn): New. (alpha_skip_prologue): Merge alpha_skip_prologue_internal; adjust for different insn encodings. (alpha_in_lenient_prologue): Remove. (struct alpha_sigtramp_unwind_cache): New. (alpha_sigtramp_frame_unwind_cache): New. (alpha_sigtramp_register_address): New. (alpha_sigtramp_frame_this_id): New. (alpha_sigtramp_frame_prev_register): New. (alpha_sigtramp_frame_unwind): New. (alpha_sigtramp_frame_p): New. (struct alpha_heuristic_unwind_cache): New. (alpha_heuristic_proc_start): Rename from heuristic_proc_start; don't count nop insns that occur between functions. (alpha_heuristic_frame_unwind_cache): New; incorporate much of heuristic_proc_desc, but without the mdebug wrapping. (alpha_heuristic_frame_this_id): New. (alpha_heuristic_frame_prev_register): New. (alpha_heuristic_frame_unwind): New. (alpha_heuristic_frame_p): New. (alpha_heuristic_frame_base_address): New. (alpha_heuristic_frame_base): New. (alpha_unwind_dummy_id): New. (alpha_unwind_pc): New. (alpha_gdbarch_init): Don't set skip_sigtramp_frame. Kill use of frame related deprecated initializations; install replacements. (alpha_dump_tdep): Remove. * alpha-tdep.h (struct gdbarch_tdep): Remove skip_sigtramp_frame. (alpha_read_insn, alpha_after_prologue, alpha_heuristic_frame_unwind_cache, alpha_heuristic_frame_this_id, alpha_heuristic_frame_prev_register, alpha_heuristic_frame_base_address, alpha_mdebug_init_abi): Declare. * config/alpha/alpha-linux.mt (TDEPFILES): Add alpha-mdebug-tdep.o. * config/alpha/tm-alpha.h (PRINT_EXTRA_FRAME_INFO): Remove. * config/alpha/tm-alphalinux.h (SIGTRAMP_START, SIGTRAMP_END): Remove.
2003-05-30 01:02:53 +02:00
alpha_linux_sigcontext_addr (struct frame_info *next_frame)
{
* alpha-linux-tdep.c (alpha_linux_sigtramp_offset_1): New. (alpha_linux_sigtramp_offset): Use it. Make static. (alpha_linux_sigcontext_addr): Handle __NR_rt_sigreturn; update for new frame model. * alpha-mdebug-tdep.c: New file. * alpha-osf1-tdep.c (alpha_call_dummy_address): Move from alpha-tdep.c. (alpha_osf1_init_abi): Install it. * alpha-tdep.c (PROC_*): Move to alpha-mdebug-tdep.c. (linked_proc_desc_table): Remove. (alpha_frame_past_sigtramp_frame): Remove. (alpha_dynamic_sigtramp_offset): Remove. (ALPHA_PROC_SIGTRAMP_MAGIC): Remove. (alpha_proc_desc_is_dyn_sigtramp): Remove. (alpha_set_proc_desc_is_dyn_sigtramp): Remove. (push_sigtramp_desc): Remove. (alpha_cannot_fetch_register): Use ALPHA_FP_REGNUM. (alpha_cannot_store_register): Likewise. (alpha_sigcontext_addr): Remove. (alpha_find_saved_regs): Remove. (alpha_frame_init_saved_regs): Remove. (alpha_init_frame_pc_first): Remove. (read_next_frame_reg): Remove. (alpha_frame_saved_pc): Remove. (alpha_saved_pc_after_call): Remove. (temp_proc_desc, temp_saved_regs): Remove. (alpha_about_to_return): Remove. (cached_proc_desc): Remove. (alpha_frame_chain): Remove. (alpha_print_extra_frame_info): Remove. (alpha_init_extra_frame_info): Remove. (alpha_frame_locals_address): Remove. (alpha_frame_args_address): Remove. (alpha_push_arguments): Use ALPHA_REGISTER_BYTES not sizeof CORE_ADDR. (alpha_push_dummy_frame): Remove. (alpha_pop_frame): Remove. (alpha_after_prologue): Rename from after_prologue; remove mdebug bits. (alpha_read_insn): New. (alpha_skip_prologue): Merge alpha_skip_prologue_internal; adjust for different insn encodings. (alpha_in_lenient_prologue): Remove. (struct alpha_sigtramp_unwind_cache): New. (alpha_sigtramp_frame_unwind_cache): New. (alpha_sigtramp_register_address): New. (alpha_sigtramp_frame_this_id): New. (alpha_sigtramp_frame_prev_register): New. (alpha_sigtramp_frame_unwind): New. (alpha_sigtramp_frame_p): New. (struct alpha_heuristic_unwind_cache): New. (alpha_heuristic_proc_start): Rename from heuristic_proc_start; don't count nop insns that occur between functions. (alpha_heuristic_frame_unwind_cache): New; incorporate much of heuristic_proc_desc, but without the mdebug wrapping. (alpha_heuristic_frame_this_id): New. (alpha_heuristic_frame_prev_register): New. (alpha_heuristic_frame_unwind): New. (alpha_heuristic_frame_p): New. (alpha_heuristic_frame_base_address): New. (alpha_heuristic_frame_base): New. (alpha_unwind_dummy_id): New. (alpha_unwind_pc): New. (alpha_gdbarch_init): Don't set skip_sigtramp_frame. Kill use of frame related deprecated initializations; install replacements. (alpha_dump_tdep): Remove. * alpha-tdep.h (struct gdbarch_tdep): Remove skip_sigtramp_frame. (alpha_read_insn, alpha_after_prologue, alpha_heuristic_frame_unwind_cache, alpha_heuristic_frame_this_id, alpha_heuristic_frame_prev_register, alpha_heuristic_frame_base_address, alpha_mdebug_init_abi): Declare. * config/alpha/alpha-linux.mt (TDEPFILES): Add alpha-mdebug-tdep.o. * config/alpha/tm-alpha.h (PRINT_EXTRA_FRAME_INFO): Remove. * config/alpha/tm-alphalinux.h (SIGTRAMP_START, SIGTRAMP_END): Remove.
2003-05-30 01:02:53 +02:00
CORE_ADDR pc;
ULONGEST sp;
long off;
pc = frame_pc_unwind (next_frame);
frame_unwind_unsigned_register (next_frame, ALPHA_SP_REGNUM, &sp);
off = alpha_linux_sigtramp_offset (pc);
gdb_assert (off >= 0);
/* __NR_rt_sigreturn has a couple of structures on the stack. This is:
struct rt_sigframe {
struct siginfo info;
struct ucontext uc;
};
offsetof (struct rt_sigframe, uc.uc_mcontext);
*/
if (alpha_read_insn (pc - off + 4) == 0x201f015f)
return sp + 176;
/* __NR_sigreturn has the sigcontext structure at the top of the stack. */
return sp;
}
static void
alpha_linux_init_abi (struct gdbarch_info info, struct gdbarch *gdbarch)
{
* alpha-linux-tdep.c (alpha_linux_sigtramp_offset_1): New. (alpha_linux_sigtramp_offset): Use it. Make static. (alpha_linux_sigcontext_addr): Handle __NR_rt_sigreturn; update for new frame model. * alpha-mdebug-tdep.c: New file. * alpha-osf1-tdep.c (alpha_call_dummy_address): Move from alpha-tdep.c. (alpha_osf1_init_abi): Install it. * alpha-tdep.c (PROC_*): Move to alpha-mdebug-tdep.c. (linked_proc_desc_table): Remove. (alpha_frame_past_sigtramp_frame): Remove. (alpha_dynamic_sigtramp_offset): Remove. (ALPHA_PROC_SIGTRAMP_MAGIC): Remove. (alpha_proc_desc_is_dyn_sigtramp): Remove. (alpha_set_proc_desc_is_dyn_sigtramp): Remove. (push_sigtramp_desc): Remove. (alpha_cannot_fetch_register): Use ALPHA_FP_REGNUM. (alpha_cannot_store_register): Likewise. (alpha_sigcontext_addr): Remove. (alpha_find_saved_regs): Remove. (alpha_frame_init_saved_regs): Remove. (alpha_init_frame_pc_first): Remove. (read_next_frame_reg): Remove. (alpha_frame_saved_pc): Remove. (alpha_saved_pc_after_call): Remove. (temp_proc_desc, temp_saved_regs): Remove. (alpha_about_to_return): Remove. (cached_proc_desc): Remove. (alpha_frame_chain): Remove. (alpha_print_extra_frame_info): Remove. (alpha_init_extra_frame_info): Remove. (alpha_frame_locals_address): Remove. (alpha_frame_args_address): Remove. (alpha_push_arguments): Use ALPHA_REGISTER_BYTES not sizeof CORE_ADDR. (alpha_push_dummy_frame): Remove. (alpha_pop_frame): Remove. (alpha_after_prologue): Rename from after_prologue; remove mdebug bits. (alpha_read_insn): New. (alpha_skip_prologue): Merge alpha_skip_prologue_internal; adjust for different insn encodings. (alpha_in_lenient_prologue): Remove. (struct alpha_sigtramp_unwind_cache): New. (alpha_sigtramp_frame_unwind_cache): New. (alpha_sigtramp_register_address): New. (alpha_sigtramp_frame_this_id): New. (alpha_sigtramp_frame_prev_register): New. (alpha_sigtramp_frame_unwind): New. (alpha_sigtramp_frame_p): New. (struct alpha_heuristic_unwind_cache): New. (alpha_heuristic_proc_start): Rename from heuristic_proc_start; don't count nop insns that occur between functions. (alpha_heuristic_frame_unwind_cache): New; incorporate much of heuristic_proc_desc, but without the mdebug wrapping. (alpha_heuristic_frame_this_id): New. (alpha_heuristic_frame_prev_register): New. (alpha_heuristic_frame_unwind): New. (alpha_heuristic_frame_p): New. (alpha_heuristic_frame_base_address): New. (alpha_heuristic_frame_base): New. (alpha_unwind_dummy_id): New. (alpha_unwind_pc): New. (alpha_gdbarch_init): Don't set skip_sigtramp_frame. Kill use of frame related deprecated initializations; install replacements. (alpha_dump_tdep): Remove. * alpha-tdep.h (struct gdbarch_tdep): Remove skip_sigtramp_frame. (alpha_read_insn, alpha_after_prologue, alpha_heuristic_frame_unwind_cache, alpha_heuristic_frame_this_id, alpha_heuristic_frame_prev_register, alpha_heuristic_frame_base_address, alpha_mdebug_init_abi): Declare. * config/alpha/alpha-linux.mt (TDEPFILES): Add alpha-mdebug-tdep.o. * config/alpha/tm-alpha.h (PRINT_EXTRA_FRAME_INFO): Remove. * config/alpha/tm-alphalinux.h (SIGTRAMP_START, SIGTRAMP_END): Remove.
2003-05-30 01:02:53 +02:00
struct gdbarch_tdep *tdep;
/* Hook into the DWARF CFI frame unwinder. */
alpha_dwarf2_init_abi (info, gdbarch);
/* Hook into the MDEBUG frame unwinder. */
* alpha-linux-tdep.c (alpha_linux_sigtramp_offset_1): New. (alpha_linux_sigtramp_offset): Use it. Make static. (alpha_linux_sigcontext_addr): Handle __NR_rt_sigreturn; update for new frame model. * alpha-mdebug-tdep.c: New file. * alpha-osf1-tdep.c (alpha_call_dummy_address): Move from alpha-tdep.c. (alpha_osf1_init_abi): Install it. * alpha-tdep.c (PROC_*): Move to alpha-mdebug-tdep.c. (linked_proc_desc_table): Remove. (alpha_frame_past_sigtramp_frame): Remove. (alpha_dynamic_sigtramp_offset): Remove. (ALPHA_PROC_SIGTRAMP_MAGIC): Remove. (alpha_proc_desc_is_dyn_sigtramp): Remove. (alpha_set_proc_desc_is_dyn_sigtramp): Remove. (push_sigtramp_desc): Remove. (alpha_cannot_fetch_register): Use ALPHA_FP_REGNUM. (alpha_cannot_store_register): Likewise. (alpha_sigcontext_addr): Remove. (alpha_find_saved_regs): Remove. (alpha_frame_init_saved_regs): Remove. (alpha_init_frame_pc_first): Remove. (read_next_frame_reg): Remove. (alpha_frame_saved_pc): Remove. (alpha_saved_pc_after_call): Remove. (temp_proc_desc, temp_saved_regs): Remove. (alpha_about_to_return): Remove. (cached_proc_desc): Remove. (alpha_frame_chain): Remove. (alpha_print_extra_frame_info): Remove. (alpha_init_extra_frame_info): Remove. (alpha_frame_locals_address): Remove. (alpha_frame_args_address): Remove. (alpha_push_arguments): Use ALPHA_REGISTER_BYTES not sizeof CORE_ADDR. (alpha_push_dummy_frame): Remove. (alpha_pop_frame): Remove. (alpha_after_prologue): Rename from after_prologue; remove mdebug bits. (alpha_read_insn): New. (alpha_skip_prologue): Merge alpha_skip_prologue_internal; adjust for different insn encodings. (alpha_in_lenient_prologue): Remove. (struct alpha_sigtramp_unwind_cache): New. (alpha_sigtramp_frame_unwind_cache): New. (alpha_sigtramp_register_address): New. (alpha_sigtramp_frame_this_id): New. (alpha_sigtramp_frame_prev_register): New. (alpha_sigtramp_frame_unwind): New. (alpha_sigtramp_frame_p): New. (struct alpha_heuristic_unwind_cache): New. (alpha_heuristic_proc_start): Rename from heuristic_proc_start; don't count nop insns that occur between functions. (alpha_heuristic_frame_unwind_cache): New; incorporate much of heuristic_proc_desc, but without the mdebug wrapping. (alpha_heuristic_frame_this_id): New. (alpha_heuristic_frame_prev_register): New. (alpha_heuristic_frame_unwind): New. (alpha_heuristic_frame_p): New. (alpha_heuristic_frame_base_address): New. (alpha_heuristic_frame_base): New. (alpha_unwind_dummy_id): New. (alpha_unwind_pc): New. (alpha_gdbarch_init): Don't set skip_sigtramp_frame. Kill use of frame related deprecated initializations; install replacements. (alpha_dump_tdep): Remove. * alpha-tdep.h (struct gdbarch_tdep): Remove skip_sigtramp_frame. (alpha_read_insn, alpha_after_prologue, alpha_heuristic_frame_unwind_cache, alpha_heuristic_frame_this_id, alpha_heuristic_frame_prev_register, alpha_heuristic_frame_base_address, alpha_mdebug_init_abi): Declare. * config/alpha/alpha-linux.mt (TDEPFILES): Add alpha-mdebug-tdep.o. * config/alpha/tm-alpha.h (PRINT_EXTRA_FRAME_INFO): Remove. * config/alpha/tm-alphalinux.h (SIGTRAMP_START, SIGTRAMP_END): Remove.
2003-05-30 01:02:53 +02:00
alpha_mdebug_init_abi (info, gdbarch);
* Makefile.in (ALLDEPFILES): Add alpha-osf1-tdep.c. (alpha-osf1-tdep.o): New dependency list. * alpha-tdep.h (gdbarch_tdep): Add dynamic_sigtramp_offset and skip_sigtramp_frame members. * alpha-linux-tdep.c: Include gdbcore.h. (alpha_linux_sigtramp_offset): Change return type to LONGEST. (alpha_linux_init_abi): Initialize tdep->dynamic_sigtramp_offset. * alpha-osf1-tdep.c: New file. * alpha-tdep.c (alpha_osf_skip_sigtramp_frame): Moved to alpha-osf1-dep.c. (alpha_frame_past_sigtramp_frame): New function. (alpha_dynamic_sigtramp_offset): Ditto. (alpha_proc_desc_is_dyn_sigtramp): Ditto. (alpha_set_proc_desc_is_dyn_sigtramp): Ditto. (ALPHA_PROC_SIGTRAMP_MAGIC): Define. (push_sigtramp_desc): Use alpha_set_proc_desc_is_dyn_sigtramp. (after_prologue): Use alpha_proc_desc_is_dyn_sigtramp. (find_proc_desc): Use alpha_dynamic_sigtramp_offset. (alpha_frame_chain): Use alpha_frame_past_sigtramp_frame. (alpha_init_extra_frame_info): Use alpha_proc_desc_is_dyn_sigtramp. (alpha_pop_frame): Use alpha_proc_desc_is_dyn_sigtramp. (alpha_gdbarch_init): Initialize tdep->dynamic_sigtramp_offset and tdep->skip_sigtramp_frame. Set gdbarch_skip_trampoline_code to find_solib_trampoline_target. * config/alpha/alpha-osf1.mt (TDEPFILES): Add alpha-osf1-tdep.o. * config/alpha/tm-alpha.h: Remove inclusion of regcache.h. (SKIP_TRAMPOLINE_CODE): Remove. (PROC_DESC_IS_DYN_SIGTRAMP): Ditto. (SET_PROC_DESC_IS_DYN_SIGTRAMP): Ditto. (DYNAMIC_SIGTRAMP_OFFSET): Ditto. (FRAME_PAST_SIGTRAMP_FRAME): Ditto. * config/alpha/tm-alphalinux.h (PROC_DESC_IS_DYN_SIGTRAMP): Remove. (PROC_SIGTRAMP_MAGIC): Ditto. (PROC_DESC_IS_DYN_SIGTRAMP): Ditto. (SET_PROC_DESC_IS_DYN_SIGTRAMP): Ditto. (SET_PROC_DESC_IS_DYN_SIGTRAMP): Ditto. (DYNAMIC_SIGTRAMP_OFFSET): Ditto. (FRAME_PAST_SIGTRAMP_FRAME): Ditto.
2002-04-25 04:28:57 +02:00
set_gdbarch_pc_in_sigtramp (gdbarch, alpha_linux_pc_in_sigtramp);
* alpha-linux-tdep.c (alpha_linux_sigtramp_offset_1): New. (alpha_linux_sigtramp_offset): Use it. Make static. (alpha_linux_sigcontext_addr): Handle __NR_rt_sigreturn; update for new frame model. * alpha-mdebug-tdep.c: New file. * alpha-osf1-tdep.c (alpha_call_dummy_address): Move from alpha-tdep.c. (alpha_osf1_init_abi): Install it. * alpha-tdep.c (PROC_*): Move to alpha-mdebug-tdep.c. (linked_proc_desc_table): Remove. (alpha_frame_past_sigtramp_frame): Remove. (alpha_dynamic_sigtramp_offset): Remove. (ALPHA_PROC_SIGTRAMP_MAGIC): Remove. (alpha_proc_desc_is_dyn_sigtramp): Remove. (alpha_set_proc_desc_is_dyn_sigtramp): Remove. (push_sigtramp_desc): Remove. (alpha_cannot_fetch_register): Use ALPHA_FP_REGNUM. (alpha_cannot_store_register): Likewise. (alpha_sigcontext_addr): Remove. (alpha_find_saved_regs): Remove. (alpha_frame_init_saved_regs): Remove. (alpha_init_frame_pc_first): Remove. (read_next_frame_reg): Remove. (alpha_frame_saved_pc): Remove. (alpha_saved_pc_after_call): Remove. (temp_proc_desc, temp_saved_regs): Remove. (alpha_about_to_return): Remove. (cached_proc_desc): Remove. (alpha_frame_chain): Remove. (alpha_print_extra_frame_info): Remove. (alpha_init_extra_frame_info): Remove. (alpha_frame_locals_address): Remove. (alpha_frame_args_address): Remove. (alpha_push_arguments): Use ALPHA_REGISTER_BYTES not sizeof CORE_ADDR. (alpha_push_dummy_frame): Remove. (alpha_pop_frame): Remove. (alpha_after_prologue): Rename from after_prologue; remove mdebug bits. (alpha_read_insn): New. (alpha_skip_prologue): Merge alpha_skip_prologue_internal; adjust for different insn encodings. (alpha_in_lenient_prologue): Remove. (struct alpha_sigtramp_unwind_cache): New. (alpha_sigtramp_frame_unwind_cache): New. (alpha_sigtramp_register_address): New. (alpha_sigtramp_frame_this_id): New. (alpha_sigtramp_frame_prev_register): New. (alpha_sigtramp_frame_unwind): New. (alpha_sigtramp_frame_p): New. (struct alpha_heuristic_unwind_cache): New. (alpha_heuristic_proc_start): Rename from heuristic_proc_start; don't count nop insns that occur between functions. (alpha_heuristic_frame_unwind_cache): New; incorporate much of heuristic_proc_desc, but without the mdebug wrapping. (alpha_heuristic_frame_this_id): New. (alpha_heuristic_frame_prev_register): New. (alpha_heuristic_frame_unwind): New. (alpha_heuristic_frame_p): New. (alpha_heuristic_frame_base_address): New. (alpha_heuristic_frame_base): New. (alpha_unwind_dummy_id): New. (alpha_unwind_pc): New. (alpha_gdbarch_init): Don't set skip_sigtramp_frame. Kill use of frame related deprecated initializations; install replacements. (alpha_dump_tdep): Remove. * alpha-tdep.h (struct gdbarch_tdep): Remove skip_sigtramp_frame. (alpha_read_insn, alpha_after_prologue, alpha_heuristic_frame_unwind_cache, alpha_heuristic_frame_this_id, alpha_heuristic_frame_prev_register, alpha_heuristic_frame_base_address, alpha_mdebug_init_abi): Declare. * config/alpha/alpha-linux.mt (TDEPFILES): Add alpha-mdebug-tdep.o. * config/alpha/tm-alpha.h (PRINT_EXTRA_FRAME_INFO): Remove. * config/alpha/tm-alphalinux.h (SIGTRAMP_START, SIGTRAMP_END): Remove.
2003-05-30 01:02:53 +02:00
tdep = gdbarch_tdep (gdbarch);
* Makefile.in (ALLDEPFILES): Add alpha-osf1-tdep.c. (alpha-osf1-tdep.o): New dependency list. * alpha-tdep.h (gdbarch_tdep): Add dynamic_sigtramp_offset and skip_sigtramp_frame members. * alpha-linux-tdep.c: Include gdbcore.h. (alpha_linux_sigtramp_offset): Change return type to LONGEST. (alpha_linux_init_abi): Initialize tdep->dynamic_sigtramp_offset. * alpha-osf1-tdep.c: New file. * alpha-tdep.c (alpha_osf_skip_sigtramp_frame): Moved to alpha-osf1-dep.c. (alpha_frame_past_sigtramp_frame): New function. (alpha_dynamic_sigtramp_offset): Ditto. (alpha_proc_desc_is_dyn_sigtramp): Ditto. (alpha_set_proc_desc_is_dyn_sigtramp): Ditto. (ALPHA_PROC_SIGTRAMP_MAGIC): Define. (push_sigtramp_desc): Use alpha_set_proc_desc_is_dyn_sigtramp. (after_prologue): Use alpha_proc_desc_is_dyn_sigtramp. (find_proc_desc): Use alpha_dynamic_sigtramp_offset. (alpha_frame_chain): Use alpha_frame_past_sigtramp_frame. (alpha_init_extra_frame_info): Use alpha_proc_desc_is_dyn_sigtramp. (alpha_pop_frame): Use alpha_proc_desc_is_dyn_sigtramp. (alpha_gdbarch_init): Initialize tdep->dynamic_sigtramp_offset and tdep->skip_sigtramp_frame. Set gdbarch_skip_trampoline_code to find_solib_trampoline_target. * config/alpha/alpha-osf1.mt (TDEPFILES): Add alpha-osf1-tdep.o. * config/alpha/tm-alpha.h: Remove inclusion of regcache.h. (SKIP_TRAMPOLINE_CODE): Remove. (PROC_DESC_IS_DYN_SIGTRAMP): Ditto. (SET_PROC_DESC_IS_DYN_SIGTRAMP): Ditto. (DYNAMIC_SIGTRAMP_OFFSET): Ditto. (FRAME_PAST_SIGTRAMP_FRAME): Ditto. * config/alpha/tm-alphalinux.h (PROC_DESC_IS_DYN_SIGTRAMP): Remove. (PROC_SIGTRAMP_MAGIC): Ditto. (PROC_DESC_IS_DYN_SIGTRAMP): Ditto. (SET_PROC_DESC_IS_DYN_SIGTRAMP): Ditto. (SET_PROC_DESC_IS_DYN_SIGTRAMP): Ditto. (DYNAMIC_SIGTRAMP_OFFSET): Ditto. (FRAME_PAST_SIGTRAMP_FRAME): Ditto.
2002-04-25 04:28:57 +02:00
tdep->dynamic_sigtramp_offset = alpha_linux_sigtramp_offset;
tdep->sigcontext_addr = alpha_linux_sigcontext_addr;
tdep->jb_pc = 2;
tdep->jb_elt_size = 8;
}
void
_initialize_alpha_linux_tdep (void)
{
* osabi.c: Include "gdb_assert.h" and "gdb_string.h". (struct gdb_osabi_handler): Remove member `arch'. Add member `arch_info'. (gdbarch_register_osabi): Add new argument `machine'. Use ot to construct a `struct bfd_arch_info' and store it in the `struct gdb_osabi_handler' that is created. (gdbarch_init_osabi): Check for compatibility based on machine type and architecture. * osabi.h (gdbarch_register_osabi): Adjust prototype and update comment. * alpha-linux-tdep.c (_initialize_alpha_linux_tdep): Add 0 as second argument in call to gdbarch_register_osabi. * alpha-osf1-tdep.c (_initialize_alpha_osf1_tdep): Likewise. * alphafbsd-tdep.c (_initialize_alphafbsd_tdep): Likewise. * alphanbsd-tdep.c (_initialize_alphanbsd_tdep): Likewise. * arm-linux-tdep.c (_initialize_arm_linux_tdep): Likewise. * arm-tdep.c (_initialize_arm_tdep): Likewise. * armnbsd-tdep.c (_initialize_armnbsd_tdep): Likewise. * hppa-hpux-tdep.c (_initialize_hppa_hpux_tdep): Likewise. * i386-interix-tdep.c (_initialize_i386_interix_tdep): Likewise. * i386-linux-tdep.c (_initialize_i386_linux_tdep): Likewise. * i386-sol2-tdep.c (_initialize_i386_sol2_tdep): Likewise. * i386-tdep.c (_initialize_i386_tdep): Likewise. * i386bsd-tdep.c (_initialize_i386bsd_tdep): Likewise. * i386gnu-tdep.c (_initialize_i386gnu_tdep): Likewise. * i386ly-tdep.c (_initialize_i386lynx_tdep): Renamed from _initialize_i386bsd_tdep and updated likewise. * i386nbsd-tdep.c (_initialize_i386nbsd_tdep): Likewise. * i386obsd-tdep.c (_initialize_i386obsd_tdep): Likewise. * mips-irix-tdep.c (_initialize_mips_irix_tdep): Likewise. * mips-linux-tdep.c (_initialize_mips_linux_tdep): Likewise. * mipsnbsd-tdep.c (_initialize_mipsnbsd__tdep): Likewise. * ns32knbsd-tdep.c (_initialize_ns32kmnsd_tdep): Likewise. * ppc-linux-tdep.c (_initialize_ppc_linux_tdep): Likewise. * ppcnbsd-tdep.c (_initialize_ppcnbsd_tdep): Likewise. * shnbsd-tdep.c (_initialize_shnbsd_tdep): Likewise. * sparcnbsd-tdep.c (_initialize_sparcnbsd_tdep): Likewise.
2002-12-21 20:58:07 +01:00
gdbarch_register_osabi (bfd_arch_alpha, 0, GDB_OSABI_LINUX,
* Makefile.in (SFILES): Add osabi.c. (COMMON_OBS): Add osabi.o. (osabi.o): New dependency list. * osabi.c: New file. * osabi.h: New file. * doc/gdbint.texinfo: Document new generic OS ABI framework. * Makefile.in (alpha_tdep_h): Define and use instead of alpha-tdep.h. * alpha-tdep.c (alpha_abi_names, process_note_abi_tag_sections, get_elfosabi, alpha_abi_handler_list, alpha_gdbarch_register_os_abi): Remove. (alpha_gdbarch_init, alpha_dump_tdep): Use generic OS ABI framework. * alpha-tdep.h: Include osabi.h. (alpha_abi): Remove. (gdbarch_tdep): Use generic OS ABI framework. * alpha-linux-tdep.c (_initialize_alpha_linux_tdep): Use gdbarch_register_osabi. * alpha-osf1-tdep.c (_initialize_alpha_osf1_tdep): Likewise. * alphafbsd-tdep.c (_initialize_alphafbsd_tdep): Likewise. * alphanbsd-tdep.c (_initialize_alphanbsd_tdep): Likewise. * Makefile.in (sh_tdep_h): Add osabi.h. * sh-tdep.h (sh_osabi): Remove. (gdbarch_tdep): Use generic OS ABI framework. * sh-tdep.c (sh_osabi_names, process_note_abi_tag_sections, sh_osabi_handler_list, sh_gdbarch_register_os_abi): Remove. (sh_gdbarch_init, sh_dump_tdep): Use generic OS ABI framework. * shnbsd-tdep.c (_initialize_shnbsd_tdep): Use gdbarch_register_osabi. * Makefile.in (arm_tdep_h): Define and use instead of arm-tdep.h. * arm-linux-tdep.c (_initialize_arm_linux_tdep): Use gdbarch_register_osabi. * arm-tdep.c (arm_abi_names, process_note_abi_tag_sections, arm_abi_handler_list, arm_gdbarch_register_os_abi): Remove. (get_elfosabi): Rename to... (arm_elf_osabi_sniffer): ...this. Adjust to use generic OS ABI framework support routines. (arm_gdbarch_init): Use generic OS ABI framework. (arm_dump_tdep): Likewise. (_initialize_arm_tdep): Likewise. * arm-tdep.h: Include osabi.h. (arm_abi): Remove. (gdbarch_tdep): Remove arm_abi and abi_name members. Add osabi member. (arm_gdbarch_register_os_abi): Remove prototype. * armnbsd-tdep.c (arm_netbsd_aout_osabi_sniffer): New function. (_initialize_arm_netbsd_tdep): Use gdbarch_register_osabi. * Makefile.in (mips-tdep.o): Add osabi.h to dependency list. * mips-tdep.c: Include osabi.h. (gdbarch_tdep, mips_gdbarch_init, mips_dump_tdep): Use generic OS ABI framework.
2002-05-21 17:36:03 +02:00
alpha_linux_init_abi);
}