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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
4.0 KiB
C
141 lines
4.0 KiB
C
/* Target-dependent code for Xilinx MicroBlaze.
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Copyright (C) 2009-2022 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 "frame.h"
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#include "inferior.h"
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#include "symtab.h"
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#include "target.h"
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#include "gdbcore.h"
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#include "gdbcmd.h"
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#include "symfile.h"
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#include "objfiles.h"
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#include "regcache.h"
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#include "value.h"
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#include "osabi.h"
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#include "regset.h"
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#include "solib-svr4.h"
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#include "microblaze-tdep.h"
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#include "trad-frame.h"
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#include "frame-unwind.h"
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#include "tramp-frame.h"
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#include "linux-tdep.h"
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static int
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microblaze_linux_memory_remove_breakpoint (struct gdbarch *gdbarch,
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struct bp_target_info *bp_tgt)
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{
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CORE_ADDR addr = bp_tgt->reqstd_address;
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const gdb_byte *bp;
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int val;
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int bplen;
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gdb_byte old_contents[BREAKPOINT_MAX];
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/* Determine appropriate breakpoint contents and size for this address. */
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bp = gdbarch_breakpoint_from_pc (gdbarch, &addr, &bplen);
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val = target_read_memory (addr, old_contents, bplen);
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/* If our breakpoint is no longer at the address, this means that the
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program modified the code on us, so it is wrong to put back the
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old value. */
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if (val == 0 && memcmp (bp, old_contents, bplen) == 0)
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val = target_write_raw_memory (addr, bp_tgt->shadow_contents, bplen);
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return val;
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}
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static void
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microblaze_linux_sigtramp_cache (frame_info_ptr next_frame,
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struct trad_frame_cache *this_cache,
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CORE_ADDR func, LONGEST offset,
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int bias)
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{
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CORE_ADDR base;
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CORE_ADDR gpregs;
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int regnum;
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base = frame_unwind_register_unsigned (next_frame, MICROBLAZE_SP_REGNUM);
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if (bias > 0 && get_frame_address_in_block (next_frame) != func)
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/* See below, some signal trampolines increment the stack as their
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first instruction, need to compensate for that. */
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base -= bias;
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/* Find the address of the register buffer. */
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gpregs = base + offset;
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/* Registers saved on stack. */
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for (regnum = 0; regnum < MICROBLAZE_BTR_REGNUM; regnum++)
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trad_frame_set_reg_addr (this_cache, regnum,
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gpregs + regnum * MICROBLAZE_REGISTER_SIZE);
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trad_frame_set_id (this_cache, frame_id_build (base, func));
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}
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static void
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microblaze_linux_sighandler_cache_init (const struct tramp_frame *self,
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frame_info_ptr next_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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microblaze_linux_sigtramp_cache (next_frame, this_cache, func,
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0 /* Offset to ucontext_t. */
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+ 24 /* Offset to .reg. */,
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0);
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}
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static struct tramp_frame microblaze_linux_sighandler_tramp_frame =
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{
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SIGTRAMP_FRAME,
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4,
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{
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{ 0x31800077, ULONGEST_MAX }, /* addik R12,R0,119. */
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{ 0xb9cc0008, ULONGEST_MAX }, /* brki R14,8. */
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{ TRAMP_SENTINEL_INSN },
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},
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microblaze_linux_sighandler_cache_init
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};
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static void
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microblaze_linux_init_abi (struct gdbarch_info info,
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struct gdbarch *gdbarch)
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{
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linux_init_abi (info, gdbarch, 0);
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set_gdbarch_memory_remove_breakpoint (gdbarch,
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microblaze_linux_memory_remove_breakpoint);
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/* Shared library handling. */
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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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/* Trampolines. */
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tramp_frame_prepend_unwinder (gdbarch,
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µblaze_linux_sighandler_tramp_frame);
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}
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void _initialize_microblaze_linux_tdep ();
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void
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_initialize_microblaze_linux_tdep ()
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{
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gdbarch_register_osabi (bfd_arch_microblaze, 0, GDB_OSABI_LINUX,
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microblaze_linux_init_abi);
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}
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