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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.
132 lines
3.9 KiB
C
132 lines
3.9 KiB
C
/* ARM Symbian OS target support.
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Copyright (C) 2008-2019 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 "frame.h"
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#include "objfiles.h"
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#include "osabi.h"
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#include "solib.h"
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#include "solib-target.h"
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#include "target.h"
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#include "elf-bfd.h"
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/* If PC is in a DLL import stub, return the address of the `real'
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function belonging to the stub. */
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static CORE_ADDR
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arm_symbian_skip_trampoline_code (struct frame_info *frame, CORE_ADDR pc)
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{
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struct gdbarch *gdbarch;
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enum bfd_endian byte_order;
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ULONGEST insn;
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CORE_ADDR dest;
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gdb_byte buf[4];
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if (!in_plt_section (pc))
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return 0;
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if (target_read_memory (pc, buf, 4) != 0)
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return 0;
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gdbarch = get_frame_arch (frame);
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byte_order = gdbarch_byte_order (gdbarch);
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/* ldr pc, [pc, #-4]. */
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insn = extract_unsigned_integer (buf, 4, byte_order);
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if (insn != 0xe51ff004)
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return 0;
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if (target_read_memory (pc + 4, buf, 4) != 0)
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return 0;
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dest = extract_unsigned_integer (buf, 4, byte_order);
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return gdbarch_addr_bits_remove (gdbarch, dest);
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}
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static void
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arm_symbian_init_abi (struct gdbarch_info info,
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struct gdbarch *gdbarch)
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{
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/* Shared library handling. */
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set_gdbarch_skip_trampoline_code (gdbarch, arm_symbian_skip_trampoline_code);
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/* On this target, the toolchain outputs ELF files, with `sym' for
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filename extension (e.g., `FOO.sym'); these are post-linker
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processed into PE-ish DLLs (e.g., `FOO.dll'), and it's these that
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are actually copied to and run on the target. Naturally, when
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listing shared libraries, Symbian stubs report the DLL filenames.
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Setting this makes it so that GDB automatically looks for the
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corresponding ELF files on the host's filesystem. */
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set_gdbarch_solib_symbols_extension (gdbarch, "sym");
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/* Canonical paths on this target look like `c:\sys\bin\bar.dll',
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for example. */
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set_gdbarch_has_dos_based_file_system (gdbarch, 1);
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set_solib_ops (gdbarch, &solib_target_so_ops);
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}
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/* Recognize Symbian object files. */
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static enum gdb_osabi
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arm_symbian_osabi_sniffer (bfd *abfd)
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{
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Elf_Internal_Phdr *phdrs;
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long phdrs_size;
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int num_phdrs, i;
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/* Symbian executables are always shared objects (ET_DYN). */
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if (elf_elfheader (abfd)->e_type == ET_EXEC)
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return GDB_OSABI_UNKNOWN;
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if (elf_elfheader (abfd)->e_ident[EI_OSABI] != ELFOSABI_NONE)
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return GDB_OSABI_UNKNOWN;
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/* Check for the ELF headers not being part of any PT_LOAD segment.
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Symbian is the only GDB supported (or GNU binutils supported) ARM
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target which uses a postlinker to flatten ELF files, dropping the
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ELF dynamic info in the process. */
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phdrs_size = bfd_get_elf_phdr_upper_bound (abfd);
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if (phdrs_size == -1)
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return GDB_OSABI_UNKNOWN;
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phdrs = (Elf_Internal_Phdr *) alloca (phdrs_size);
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num_phdrs = bfd_get_elf_phdrs (abfd, phdrs);
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if (num_phdrs == -1)
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return GDB_OSABI_UNKNOWN;
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for (i = 0; i < num_phdrs; i++)
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if (phdrs[i].p_type == PT_LOAD && phdrs[i].p_offset == 0)
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return GDB_OSABI_UNKNOWN;
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/* Looks like a Symbian binary. */
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return GDB_OSABI_SYMBIAN;
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}
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void
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_initialize_arm_symbian_tdep (void)
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{
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gdbarch_register_osabi_sniffer (bfd_arch_arm,
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bfd_target_elf_flavour,
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arm_symbian_osabi_sniffer);
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gdbarch_register_osabi (bfd_arch_arm, 0, GDB_OSABI_SYMBIAN,
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arm_symbian_init_abi);
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}
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