mirror of
https://sourceware.org/git/binutils-gdb.git
synced 2025-04-24 14:53:34 +08:00
1d506c26d9
This commit is the result of the following actions:
- Running gdb/copyright.py to update all of the copyright headers to
include 2024,
- Manually updating a few files the copyright.py script told me to
update, these files had copyright headers embedded within the
file,
- Regenerating gdbsupport/Makefile.in to refresh it's copyright
date,
- Using grep to find other files that still mentioned 2023. If
these files were updated last year from 2022 to 2023 then I've
updated them this year to 2024.
I'm sure I've probably missed some dates. Feel free to fix them up as
you spot them.
145 lines
4.1 KiB
C
145 lines
4.1 KiB
C
/* Target-dependent code for GNU/Linux on Tilera TILE-Gx processors.
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Copyright (C) 2012-2024 Free Software Foundation, Inc.
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This file is part of GDB.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>. */
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#include "defs.h"
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#include "osabi.h"
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#include "linux-tdep.h"
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#include "glibc-tdep.h"
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#include "solib-svr4.h"
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#include "symtab.h"
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#include "regcache.h"
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#include "regset.h"
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#include "tramp-frame.h"
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#include "trad-frame.h"
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#include "tilegx-tdep.h"
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#include "gdbarch.h"
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/* Signal trampoline support. */
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static void
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tilegx_linux_sigframe_init (const struct tramp_frame *self,
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frame_info_ptr this_frame,
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struct trad_frame_cache *this_cache,
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CORE_ADDR func)
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{
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CORE_ADDR sp = get_frame_register_unsigned (this_frame, 54);
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/* Base address of register save area. */
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CORE_ADDR base = sp
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+ 16 /* Skip ABI_SAVE_AREA. */
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+ 128 /* Skip SIGINFO. */
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+ 40; /* Skip UCONTEXT. */
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/* Address of saved LR register (R56) which holds previous PC. */
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CORE_ADDR prev_pc = base + 56 * 8;
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int i;
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for (i = 0; i < 56; i++)
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trad_frame_set_reg_addr (this_cache, i, base + i * 8);
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trad_frame_set_reg_value (this_cache, 64,
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get_frame_memory_unsigned (this_frame, prev_pc, 8));
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/* Save a frame ID. */
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trad_frame_set_id (this_cache, frame_id_build (base, func));
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}
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static const struct tramp_frame tilegx_linux_rt_sigframe =
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{
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SIGTRAMP_FRAME,
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8,
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{
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{ 0x00045fe551483000ULL, ULONGEST_MAX }, /* { moveli r10, 139 } */
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{ 0x286b180051485000ULL, ULONGEST_MAX }, /* { swint1 } */
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{ TRAMP_SENTINEL_INSN, ULONGEST_MAX }
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},
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tilegx_linux_sigframe_init
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};
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/* Register map; must match struct pt_regs in "ptrace.h". */
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static const struct regcache_map_entry tilegx_linux_regmap[] =
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{
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{ TILEGX_NUM_EASY_REGS, TILEGX_FIRST_EASY_REGNUM, 8 },
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{ 1, TILEGX_PC_REGNUM, 8 },
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{ 1, TILEGX_FAULTNUM_REGNUM, 8 },
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{ 0 }
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};
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#define TILEGX_LINUX_SIZEOF_GREGSET (64 * 8)
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/* TILE-Gx Linux kernel register set. */
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static const struct regset tilegx_linux_regset =
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{
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tilegx_linux_regmap,
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regcache_supply_regset, regcache_collect_regset
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};
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static void
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tilegx_iterate_over_regset_sections (struct gdbarch *gdbarch,
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iterate_over_regset_sections_cb *cb,
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void *cb_data,
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const struct regcache *regcache)
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{
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cb (".reg", TILEGX_LINUX_SIZEOF_GREGSET, TILEGX_LINUX_SIZEOF_GREGSET,
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&tilegx_linux_regset, NULL, cb_data);
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}
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/* OS specific initialization of gdbarch. */
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static void
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tilegx_linux_init_abi (struct gdbarch_info info, struct gdbarch *gdbarch)
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{
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int arch_size = gdbarch_addr_bit (gdbarch);
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linux_init_abi (info, gdbarch, 0);
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tramp_frame_prepend_unwinder (gdbarch, &tilegx_linux_rt_sigframe);
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set_gdbarch_iterate_over_regset_sections
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(gdbarch, tilegx_iterate_over_regset_sections);
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/* GNU/Linux uses SVR4-style shared libraries. */
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if (arch_size == 32)
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set_solib_svr4_fetch_link_map_offsets (gdbarch,
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linux_ilp32_fetch_link_map_offsets);
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else
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set_solib_svr4_fetch_link_map_offsets (gdbarch,
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linux_lp64_fetch_link_map_offsets);
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/* Enable TLS support. */
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set_gdbarch_fetch_tls_load_module_address (gdbarch,
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svr4_fetch_objfile_link_map);
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/* Shared library handling. */
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set_gdbarch_skip_trampoline_code (gdbarch, find_solib_trampoline_target);
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set_gdbarch_skip_solib_resolver (gdbarch, glibc_skip_solib_resolver);
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}
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void _initialize_tilegx_linux_tdep ();
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void
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_initialize_tilegx_linux_tdep ()
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{
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gdbarch_register_osabi (bfd_arch_tilegx, bfd_mach_tilegx, GDB_OSABI_LINUX,
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tilegx_linux_init_abi);
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}
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