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4de283e4b5
Andreas Schwab and John Baldwin pointed out some bugs in the header sorting patch; and I noticed that the output was not correct when limited to a subset of files (a bug in my script). So, I'm reverting the patch. I may try again after fixing the issues pointed out. gdb/ChangeLog 2019-04-05 Tom Tromey <tom@tromey.com> Revert the header-sorting patch. * ft32-tdep.c: Revert. * frv-tdep.c: Revert. * frv-linux-tdep.c: Revert. * frame.c: Revert. * frame-unwind.c: Revert. * frame-base.c: Revert. * fork-child.c: Revert. * findvar.c: Revert. * findcmd.c: Revert. * filesystem.c: Revert. * filename-seen-cache.h: Revert. * filename-seen-cache.c: Revert. * fbsd-tdep.c: Revert. * fbsd-nat.h: Revert. * fbsd-nat.c: Revert. * f-valprint.c: Revert. * f-typeprint.c: Revert. * f-lang.c: Revert. * extension.h: Revert. * extension.c: Revert. * extension-priv.h: Revert. * expprint.c: Revert. * exec.h: Revert. * exec.c: Revert. * exceptions.c: Revert. * event-top.c: Revert. * event-loop.c: Revert. * eval.c: Revert. * elfread.c: Revert. * dwarf2read.h: Revert. * dwarf2read.c: Revert. * dwarf2loc.c: Revert. * dwarf2expr.h: Revert. * dwarf2expr.c: Revert. * dwarf2-frame.c: Revert. * dwarf2-frame-tailcall.c: Revert. * dwarf-index-write.h: Revert. * dwarf-index-write.c: Revert. * dwarf-index-common.c: Revert. * dwarf-index-cache.h: Revert. * dwarf-index-cache.c: Revert. * dummy-frame.c: Revert. * dtrace-probe.c: Revert. * disasm.h: Revert. * disasm.c: Revert. * disasm-selftests.c: Revert. * dictionary.c: Revert. * dicos-tdep.c: Revert. * demangle.c: Revert. * dcache.h: Revert. * dcache.c: Revert. * darwin-nat.h: Revert. * darwin-nat.c: Revert. * darwin-nat-info.c: Revert. * d-valprint.c: Revert. * d-namespace.c: Revert. * d-lang.c: Revert. * ctf.c: Revert. * csky-tdep.c: Revert. * csky-linux-tdep.c: Revert. * cris-tdep.c: Revert. * cris-linux-tdep.c: Revert. * cp-valprint.c: Revert. * cp-support.c: Revert. * cp-namespace.c: Revert. * cp-abi.c: Revert. * corelow.c: Revert. * corefile.c: Revert. * continuations.c: Revert. * completer.h: Revert. * completer.c: Revert. * complaints.c: Revert. * coffread.c: Revert. * coff-pe-read.c: Revert. * cli-out.h: Revert. * cli-out.c: Revert. * charset.c: Revert. * c-varobj.c: Revert. * c-valprint.c: Revert. * c-typeprint.c: Revert. * c-lang.c: Revert. * buildsym.c: Revert. * buildsym-legacy.c: Revert. * build-id.h: Revert. * build-id.c: Revert. * btrace.c: Revert. * bsd-uthread.c: Revert. * breakpoint.h: Revert. * breakpoint.c: Revert. * break-catch-throw.c: Revert. * break-catch-syscall.c: Revert. * break-catch-sig.c: Revert. * blockframe.c: Revert. * block.c: Revert. * bfin-tdep.c: Revert. * bfin-linux-tdep.c: Revert. * bfd-target.c: Revert. * bcache.c: Revert. * ax-general.c: Revert. * ax-gdb.h: Revert. * ax-gdb.c: Revert. * avr-tdep.c: Revert. * auxv.c: Revert. * auto-load.c: Revert. * arm-wince-tdep.c: Revert. * arm-tdep.c: Revert. * arm-symbian-tdep.c: Revert. * arm-pikeos-tdep.c: Revert. * arm-obsd-tdep.c: Revert. * arm-nbsd-tdep.c: Revert. * arm-nbsd-nat.c: Revert. * arm-linux-tdep.c: Revert. * arm-linux-nat.c: Revert. * arm-fbsd-tdep.c: Revert. * arm-fbsd-nat.c: Revert. * arm-bsd-tdep.c: Revert. * arch-utils.c: Revert. * arc-tdep.c: Revert. * arc-newlib-tdep.c: Revert. * annotate.h: Revert. * annotate.c: Revert. * amd64-windows-tdep.c: Revert. * amd64-windows-nat.c: Revert. * amd64-tdep.c: Revert. * amd64-sol2-tdep.c: Revert. * amd64-obsd-tdep.c: Revert. * amd64-obsd-nat.c: Revert. * amd64-nbsd-tdep.c: Revert. * amd64-nbsd-nat.c: Revert. * amd64-nat.c: Revert. * amd64-linux-tdep.c: Revert. * amd64-linux-nat.c: Revert. * amd64-fbsd-tdep.c: Revert. * amd64-fbsd-nat.c: Revert. * amd64-dicos-tdep.c: Revert. * amd64-darwin-tdep.c: Revert. * amd64-bsd-nat.c: Revert. * alpha-tdep.c: Revert. * alpha-obsd-tdep.c: Revert. * alpha-nbsd-tdep.c: Revert. * alpha-mdebug-tdep.c: Revert. * alpha-linux-tdep.c: Revert. * alpha-linux-nat.c: Revert. * alpha-bsd-tdep.c: Revert. * alpha-bsd-nat.c: Revert. * aix-thread.c: Revert. * agent.c: Revert. * addrmap.c: Revert. * ada-varobj.c: Revert. * ada-valprint.c: Revert. * ada-typeprint.c: Revert. * ada-tasks.c: Revert. * ada-lang.c: Revert. * aarch64-tdep.c: Revert. * aarch64-ravenscar-thread.c: Revert. * aarch64-newlib-tdep.c: Revert. * aarch64-linux-tdep.c: Revert. * aarch64-linux-nat.c: Revert. * aarch64-fbsd-tdep.c: Revert. * aarch64-fbsd-nat.c: Revert. * aarch32-linux-nat.c: Revert.
179 lines
5.2 KiB
C
179 lines
5.2 KiB
C
/* Target-dependent code for FreeBSD/aarch64.
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Copyright (C) 2017-2019 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 "gdbarch.h"
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#include "fbsd-tdep.h"
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#include "aarch64-tdep.h"
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#include "aarch64-fbsd-tdep.h"
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#include "osabi.h"
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#include "solib-svr4.h"
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#include "target.h"
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#include "tramp-frame.h"
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#include "trad-frame.h"
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/* Register maps. */
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static const struct regcache_map_entry aarch64_fbsd_gregmap[] =
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{
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{ 30, AARCH64_X0_REGNUM, 8 }, /* x0 ... x29 */
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{ 1, AARCH64_LR_REGNUM, 8 },
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{ 1, AARCH64_SP_REGNUM, 8 },
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{ 1, AARCH64_PC_REGNUM, 8 },
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{ 1, AARCH64_CPSR_REGNUM, 4 },
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{ 0 }
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};
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static const struct regcache_map_entry aarch64_fbsd_fpregmap[] =
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{
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{ 32, AARCH64_V0_REGNUM, 16 }, /* v0 ... v31 */
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{ 1, AARCH64_FPSR_REGNUM, 4 },
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{ 1, AARCH64_FPCR_REGNUM, 4 },
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{ 0 }
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};
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/* In a signal frame, sp points to a 'struct sigframe' which is
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defined as:
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struct sigframe {
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siginfo_t sf_si;
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ucontext_t sf_uc;
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};
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ucontext_t is defined as:
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struct __ucontext {
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sigset_t uc_sigmask;
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mcontext_t uc_mcontext;
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...
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};
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The mcontext_t contains the general purpose register set followed
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by the floating point register set. The floating point register
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set is only valid if the _MC_FP_VALID flag is set in mc_flags. */
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#define AARCH64_SIGFRAME_UCONTEXT_OFFSET 80
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#define AARCH64_UCONTEXT_MCONTEXT_OFFSET 16
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#define AARCH64_MCONTEXT_FPREGS_OFFSET 272
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#define AARCH64_MCONTEXT_FLAGS_OFFSET 800
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#define AARCH64_MCONTEXT_FLAG_FP_VALID 0x1
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/* Implement the "init" method of struct tramp_frame. */
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static void
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aarch64_fbsd_sigframe_init (const struct tramp_frame *self,
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struct frame_info *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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struct gdbarch *gdbarch = get_frame_arch (this_frame);
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enum bfd_endian byte_order = gdbarch_byte_order (gdbarch);
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CORE_ADDR sp = get_frame_register_unsigned (this_frame, AARCH64_SP_REGNUM);
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CORE_ADDR mcontext_addr
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= (sp
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+ AARCH64_SIGFRAME_UCONTEXT_OFFSET
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+ AARCH64_UCONTEXT_MCONTEXT_OFFSET);
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gdb_byte buf[4];
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trad_frame_set_reg_regmap (this_cache, aarch64_fbsd_gregmap, mcontext_addr,
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regcache_map_entry_size (aarch64_fbsd_gregmap));
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if (target_read_memory (mcontext_addr + AARCH64_MCONTEXT_FLAGS_OFFSET, buf,
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4) == 0
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&& (extract_unsigned_integer (buf, 4, byte_order)
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& AARCH64_MCONTEXT_FLAG_FP_VALID))
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trad_frame_set_reg_regmap (this_cache, aarch64_fbsd_fpregmap,
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mcontext_addr + AARCH64_MCONTEXT_FPREGS_OFFSET,
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regcache_map_entry_size (aarch64_fbsd_fpregmap));
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trad_frame_set_id (this_cache, frame_id_build (sp, func));
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}
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static const struct tramp_frame aarch64_fbsd_sigframe =
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{
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SIGTRAMP_FRAME,
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4,
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{
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{0x910003e0, ULONGEST_MAX}, /* mov x0, sp */
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{0x91014000, ULONGEST_MAX}, /* add x0, x0, #SF_UC */
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{0xd2803428, ULONGEST_MAX}, /* mov x8, #SYS_sigreturn */
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{0xd4000001, ULONGEST_MAX}, /* svc 0x0 */
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{TRAMP_SENTINEL_INSN, ULONGEST_MAX}
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},
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aarch64_fbsd_sigframe_init
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};
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/* Register set definitions. */
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const struct regset aarch64_fbsd_gregset =
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{
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aarch64_fbsd_gregmap,
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regcache_supply_regset, regcache_collect_regset
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};
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const struct regset aarch64_fbsd_fpregset =
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{
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aarch64_fbsd_fpregmap,
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regcache_supply_regset, regcache_collect_regset
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};
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/* Implement the "regset_from_core_section" gdbarch method. */
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static void
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aarch64_fbsd_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", AARCH64_FBSD_SIZEOF_GREGSET, AARCH64_FBSD_SIZEOF_GREGSET,
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&aarch64_fbsd_gregset, NULL, cb_data);
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cb (".reg2", AARCH64_FBSD_SIZEOF_FPREGSET, AARCH64_FBSD_SIZEOF_FPREGSET,
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&aarch64_fbsd_fpregset, NULL, cb_data);
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}
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/* Implement the 'init_osabi' method of struct gdb_osabi_handler. */
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static void
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aarch64_fbsd_init_abi (struct gdbarch_info info, struct gdbarch *gdbarch)
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{
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struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch);
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/* Generic FreeBSD support. */
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fbsd_init_abi (info, gdbarch);
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set_solib_svr4_fetch_link_map_offsets (gdbarch,
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svr4_lp64_fetch_link_map_offsets);
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tramp_frame_prepend_unwinder (gdbarch, &aarch64_fbsd_sigframe);
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/* Enable longjmp. */
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tdep->jb_pc = 13;
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set_gdbarch_iterate_over_regset_sections
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(gdbarch, aarch64_fbsd_iterate_over_regset_sections);
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}
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void
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_initialize_aarch64_fbsd_tdep (void)
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{
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gdbarch_register_osabi (bfd_arch_aarch64, 0, GDB_OSABI_FREEBSD,
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aarch64_fbsd_init_abi);
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}
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