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bd2b40ac12
This changes GDB to use frame_info_ptr instead of frame_info *
The substitution was done with multiple sequential `sed` commands:
sed 's/^struct frame_info;/class frame_info_ptr;/'
sed 's/struct frame_info \*/frame_info_ptr /g' - which left some
issues in a few files, that were manually fixed.
sed 's/\<frame_info \*/frame_info_ptr /g'
sed 's/frame_info_ptr $/frame_info_ptr/g' - used to remove whitespace
problems.
The changed files were then manually checked and some 'sed' changes
undone, some constructors and some gets were added, according to what
made sense, and what Tromey originally did
Co-Authored-By: Bruno Larsen <blarsen@redhat.com>
Approved-by: Tom Tomey <tom@tromey.com>
141 lines
3.9 KiB
C
141 lines
3.9 KiB
C
/* Target-dependent code for HP PA-RISC BSD's.
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Copyright (C) 2004-2022 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 "objfiles.h"
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#include "target.h"
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#include "value.h"
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#include "elf/common.h"
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#include "hppa-tdep.h"
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#include "hppa-bsd-tdep.h"
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#include "dwarf2/frame.h"
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#include "solib-svr4.h"
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static CORE_ADDR
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hppabsd_find_global_pointer (struct gdbarch *gdbarch, struct value *function)
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{
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enum bfd_endian byte_order = gdbarch_byte_order (gdbarch);
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CORE_ADDR faddr = value_as_address (function);
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struct obj_section *faddr_sec;
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/* Is this a plabel? If so, dereference it to get the Global Pointer
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value. */
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if (faddr & 2)
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{
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gdb_byte buf[4];
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if (target_read_memory ((faddr & ~3) + 4, buf, sizeof buf) == 0)
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return extract_unsigned_integer (buf, sizeof buf, byte_order);
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}
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/* If the address is in the .plt section, then the real function
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hasn't yet been fixed up by the linker so we cannot determine the
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Global Pointer for that function. */
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if (in_plt_section (faddr))
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return 0;
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faddr_sec = find_pc_section (faddr);
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if (faddr_sec != NULL)
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{
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struct obj_section *sec;
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ALL_OBJFILE_OSECTIONS (faddr_sec->objfile, sec)
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{
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if (strcmp (sec->the_bfd_section->name, ".dynamic") == 0)
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break;
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}
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if (sec < faddr_sec->objfile->sections_end)
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{
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CORE_ADDR addr = sec->addr ();
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CORE_ADDR endaddr = sec->endaddr ();
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while (addr < endaddr)
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{
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gdb_byte buf[4];
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LONGEST tag;
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if (target_read_memory (addr, buf, sizeof buf) != 0)
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break;
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tag = extract_signed_integer (buf, byte_order);
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if (tag == DT_PLTGOT)
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{
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CORE_ADDR pltgot;
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if (target_read_memory (addr + 4, buf, sizeof buf) != 0)
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break;
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/* The NetBSD/OpenBSD ld.so doesn't relocate DT_PLTGOT, so
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we have to do it ourselves. */
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pltgot = extract_unsigned_integer (buf, sizeof buf,
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byte_order);
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pltgot += sec->objfile->text_section_offset ();
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return pltgot;
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}
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if (tag == DT_NULL)
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break;
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addr += 8;
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}
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}
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}
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return 0;
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}
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static void
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hppabsd_dwarf2_frame_init_reg (struct gdbarch *gdbarch, int regnum,
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struct dwarf2_frame_state_reg *reg,
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frame_info_ptr this_frame)
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{
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if (regnum == HPPA_PCOQ_HEAD_REGNUM)
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reg->how = DWARF2_FRAME_REG_RA;
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else if (regnum == HPPA_SP_REGNUM)
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reg->how = DWARF2_FRAME_REG_CFA;
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}
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void
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hppabsd_init_abi (struct gdbarch_info info, struct gdbarch *gdbarch)
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{
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hppa_gdbarch_tdep *tdep = gdbarch_tdep<hppa_gdbarch_tdep> (gdbarch);
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/* OpenBSD and NetBSD have a 64-bit 'long double'. */
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set_gdbarch_long_double_bit (gdbarch, 64);
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set_gdbarch_long_double_format (gdbarch, floatformats_ieee_double);
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/* OpenBSD and NetBSD use ELF. */
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tdep->is_elf = 1;
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tdep->find_global_pointer = hppabsd_find_global_pointer;
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tdep->in_solib_call_trampoline = hppa_in_solib_call_trampoline;
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set_gdbarch_skip_trampoline_code (gdbarch, hppa_skip_trampoline_code);
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/* OpenBSD and NetBSD use SVR4-style shared libraries. */
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set_solib_svr4_fetch_link_map_offsets
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(gdbarch, svr4_ilp32_fetch_link_map_offsets);
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/* Hook in the DWARF CFI frame unwinder. */
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dwarf2_frame_set_init_reg (gdbarch, hppabsd_dwarf2_frame_init_reg);
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dwarf2_append_unwinders (gdbarch);
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}
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