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https://sourceware.org/git/binutils-gdb.git
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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>
236 lines
6.8 KiB
C
236 lines
6.8 KiB
C
/* Target-dependent code for Solaris UltraSPARC.
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Copyright (C) 2003-2022 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 "frame-unwind.h"
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#include "gdbarch.h"
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#include "symtab.h"
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#include "objfiles.h"
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#include "osabi.h"
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#include "trad-frame.h"
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#include "regset.h"
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#include "sol2-tdep.h"
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#include "sparc64-tdep.h"
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#include "solib-svr4.h"
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/* From <sys/regset.h>. */
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const struct sparc_gregmap sparc64_sol2_gregmap =
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{
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32 * 8, /* "tstate" */
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33 * 8, /* %pc */
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34 * 8, /* %npc */
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35 * 8, /* %y */
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-1, /* %wim */
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-1, /* %tbr */
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1 * 8, /* %g1 */
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16 * 8, /* %l0 */
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8 /* sizeof (%y) */
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};
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const struct sparc_fpregmap sparc64_sol2_fpregmap =
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{
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0 * 8, /* %f0 */
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33 * 8, /* %fsr */
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};
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static void
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sparc64_sol2_supply_core_gregset (const struct regset *regset,
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struct regcache *regcache,
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int regnum, const void *gregs, size_t len)
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{
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sparc64_supply_gregset (&sparc64_sol2_gregmap, regcache, regnum, gregs);
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}
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static void
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sparc64_sol2_collect_core_gregset (const struct regset *regset,
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const struct regcache *regcache,
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int regnum, void *gregs, size_t len)
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{
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sparc64_collect_gregset (&sparc64_sol2_gregmap, regcache, regnum, gregs);
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}
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static void
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sparc64_sol2_supply_core_fpregset (const struct regset *regset,
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struct regcache *regcache,
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int regnum, const void *fpregs, size_t len)
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{
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sparc64_supply_fpregset (&sparc64_sol2_fpregmap, regcache, regnum, fpregs);
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}
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static void
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sparc64_sol2_collect_core_fpregset (const struct regset *regset,
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const struct regcache *regcache,
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int regnum, void *fpregs, size_t len)
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{
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sparc64_collect_fpregset (&sparc64_sol2_fpregmap, regcache, regnum, fpregs);
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}
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static const struct regset sparc64_sol2_gregset =
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{
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NULL,
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sparc64_sol2_supply_core_gregset,
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sparc64_sol2_collect_core_gregset
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};
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static const struct regset sparc64_sol2_fpregset =
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{
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NULL,
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sparc64_sol2_supply_core_fpregset,
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sparc64_sol2_collect_core_fpregset
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};
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static struct sparc_frame_cache *
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sparc64_sol2_sigtramp_frame_cache (frame_info_ptr this_frame,
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void **this_cache)
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{
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struct sparc_frame_cache *cache;
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CORE_ADDR mcontext_addr, addr;
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int regnum;
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if (*this_cache)
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return (struct sparc_frame_cache *) *this_cache;
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cache = sparc_frame_cache (this_frame, this_cache);
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gdb_assert (cache == *this_cache);
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cache->saved_regs = trad_frame_alloc_saved_regs (this_frame);
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/* The third argument is a pointer to an instance of `ucontext_t',
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which has a member `uc_mcontext' that contains the saved
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registers. */
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regnum =
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(cache->copied_regs_mask & 0x04) ? SPARC_I2_REGNUM : SPARC_O2_REGNUM;
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mcontext_addr = get_frame_register_unsigned (this_frame, regnum) + 64;
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cache->saved_regs[SPARC64_CCR_REGNUM].set_addr (mcontext_addr + 0 * 8);
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cache->saved_regs[SPARC64_PC_REGNUM].set_addr (mcontext_addr + 1 * 8);
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cache->saved_regs[SPARC64_NPC_REGNUM].set_addr (mcontext_addr + 2 * 8);
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cache->saved_regs[SPARC64_Y_REGNUM].set_addr (mcontext_addr + 3 * 8);
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cache->saved_regs[SPARC64_ASI_REGNUM].set_addr (mcontext_addr + 19 * 8);
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cache->saved_regs[SPARC64_FPRS_REGNUM].set_addr (mcontext_addr + 20 * 8);
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/* Since %g0 is always zero, keep the identity encoding. */
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for (regnum = SPARC_G1_REGNUM, addr = mcontext_addr + 4 * 8;
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regnum <= SPARC_O7_REGNUM; regnum++, addr += 8)
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cache->saved_regs[regnum].set_addr (addr);
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if (get_frame_memory_unsigned (this_frame, mcontext_addr + 21 * 8, 8))
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{
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/* The register windows haven't been flushed. */
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for (regnum = SPARC_L0_REGNUM; regnum <= SPARC_I7_REGNUM; regnum++)
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cache->saved_regs[regnum].set_unknown ();
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}
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else
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{
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CORE_ADDR sp;
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addr = cache->saved_regs[SPARC_SP_REGNUM].addr ();
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sp = get_frame_memory_unsigned (this_frame, addr, 8);
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for (regnum = SPARC_L0_REGNUM, addr = sp + BIAS;
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regnum <= SPARC_I7_REGNUM; regnum++, addr += 8)
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cache->saved_regs[regnum].set_addr (addr);
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}
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return cache;
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}
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static void
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sparc64_sol2_sigtramp_frame_this_id (frame_info_ptr this_frame,
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void **this_cache,
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struct frame_id *this_id)
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{
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struct sparc_frame_cache *cache =
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sparc64_sol2_sigtramp_frame_cache (this_frame, this_cache);
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(*this_id) = frame_id_build (cache->base, cache->pc);
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}
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static struct value *
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sparc64_sol2_sigtramp_frame_prev_register (frame_info_ptr this_frame,
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void **this_cache,
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int regnum)
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{
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struct sparc_frame_cache *cache =
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sparc64_sol2_sigtramp_frame_cache (this_frame, this_cache);
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return trad_frame_get_prev_register (this_frame, cache->saved_regs, regnum);
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}
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static int
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sparc64_sol2_sigtramp_frame_sniffer (const struct frame_unwind *self,
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frame_info_ptr this_frame,
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void **this_cache)
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{
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return sol2_sigtramp_p (this_frame);
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}
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static const struct frame_unwind sparc64_sol2_sigtramp_frame_unwind =
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{
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"sparc64 solaris sigtramp",
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SIGTRAMP_FRAME,
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default_frame_unwind_stop_reason,
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sparc64_sol2_sigtramp_frame_this_id,
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sparc64_sol2_sigtramp_frame_prev_register,
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NULL,
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sparc64_sol2_sigtramp_frame_sniffer
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};
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static void
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sparc64_sol2_init_abi (struct gdbarch_info info, struct gdbarch *gdbarch)
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{
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sparc_gdbarch_tdep *tdep = gdbarch_tdep<sparc_gdbarch_tdep> (gdbarch);
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tdep->gregset = &sparc64_sol2_gregset;
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tdep->sizeof_gregset = 304;
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tdep->fpregset = &sparc64_sol2_fpregset;
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tdep->sizeof_fpregset = 544;
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frame_unwind_append_unwinder (gdbarch, &sparc64_sol2_sigtramp_frame_unwind);
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sparc64_init_abi (info, gdbarch);
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sol2_init_abi (info, gdbarch);
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/* Solaris has SVR4-style shared libraries... */
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set_gdbarch_skip_trampoline_code (gdbarch, find_solib_trampoline_target);
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set_solib_svr4_fetch_link_map_offsets
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(gdbarch, svr4_lp64_fetch_link_map_offsets);
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/* ...which means that we need some special handling when doing
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prologue analysis. */
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tdep->plt_entry_size = 16;
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/* Solaris has kernel-assisted single-stepping support. */
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set_gdbarch_software_single_step (gdbarch, NULL);
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}
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void _initialize_sparc64_sol2_tdep ();
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void
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_initialize_sparc64_sol2_tdep ()
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{
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gdbarch_register_osabi (bfd_arch_sparc, bfd_mach_sparc_v9,
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GDB_OSABI_SOLARIS, sparc64_sol2_init_abi);
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}
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