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Symbian config
gdb/ * arm-symbian-tdep.c: New. * configure.tgt (arm*-*-symbianelf*): New target. (*-*-symbianelf*): New OS. * osabi.c (gdb_osabi_names): Add Symbian. * defs.h (gdb_osabi): Add GDB_OSABI_SYMBIAN. * Makefile.in (ALL_TARGET_OBJS): Add arm-symbian-tdep.o. (ALLDEPFILES): Add arm-symbian-tdep.c.
This commit is contained in:
Pedro Alves
parent
891edac42b
commit
78664fa36a
@ -1,3 +1,16 @@
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2010-02-25 Daniel Jacobowitz <dan@codesourcery.com>
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Symbian config
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gdb/
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* arm-symbian-tdep.c: New.
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* configure.tgt (arm*-*-symbianelf*): New target.
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(*-*-symbianelf*): New OS.
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* osabi.c (gdb_osabi_names): Add Symbian.
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* defs.h (gdb_osabi): Add GDB_OSABI_SYMBIAN.
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* Makefile.in (ALL_TARGET_OBJS): Add arm-symbian-tdep.o.
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(ALLDEPFILES): Add arm-symbian-tdep.c.
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2010-02-25 Daniel Jacobowitz <dan@codesourcery.com>
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* symfile.c (find_lowest_section): Include SEC_ALLOC sections.
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@ -488,7 +488,8 @@ ALL_64_TARGET_OBS = \
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# All other target-dependent objects files (used with --enable-targets=all).
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ALL_TARGET_OBS = \
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armbsd-tdep.o arm-linux-tdep.o armnbsd-tdep.o armobsd-tdep.o \
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armbsd-tdep.o arm-linux-tdep.o arm-symbian-tdep.o \
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armnbsd-tdep.o armobsd-tdep.o \
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arm-tdep.o arm-wince-tdep.o \
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avr-tdep.o \
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cris-tdep.o \
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@ -1406,7 +1407,7 @@ ALLDEPFILES = \
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amd64-dicos-tdep.c \
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amd64-linux-nat.c amd64-linux-tdep.c \
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amd64-sol2-tdep.c \
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arm-linux-nat.c arm-linux-tdep.c arm-tdep.c \
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arm-linux-nat.c arm-linux-tdep.c arm-symbian-tdep.c arm-tdep.c \
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armnbsd-nat.c armbsd-tdep.c armnbsd-tdep.c armobsd-tdep.c \
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avr-tdep.c \
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bsd-uthread.c bsd-kvm.c \
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121
gdb/arm-symbian-tdep.c
Normal file
121
gdb/arm-symbian-tdep.c
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@ -0,0 +1,121 @@
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/* ARM Symbian OS target support.
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Copyright (C) 2008, 2009, 2010
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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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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, NULL))
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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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struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch);
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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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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, **segments;
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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 = 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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@ -91,6 +91,10 @@ arm*-*-openbsd*)
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gdb_target_obs="arm-tdep.o armbsd-tdep.o armobsd-tdep.o obsd-tdep.o \
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corelow.o solib.o solib-svr4.o"
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;;
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arm*-*-symbianelf*)
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# Target: SymbianOS/arm
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gdb_target_obs="arm-tdep.o solib-target.o arm-symbian-tdep.o"
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;;
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arm*-*-* | thumb*-*-* | strongarm*-*-* | xscale-*-*)
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# Target: ARM embedded system
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gdb_target_obs="arm-tdep.o"
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@ -626,4 +630,6 @@ m68*-*-openbsd* | m88*-*-openbsd* | vax-*-openbsd*) ;;
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*-*-mingw* | *-*-cygwin*)
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gdb_osabi=GDB_OSABI_CYGWIN ;;
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*-*-dicos*) gdb_osabi=GDB_OSABI_DICOS ;;
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*-*-symbianelf*)
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gdb_osabi=GDB_OSABI_SYMBIAN ;;
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esac
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@ -969,13 +969,12 @@ enum gdb_osabi
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GDB_OSABI_INTERIX,
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GDB_OSABI_HPUX_ELF,
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GDB_OSABI_HPUX_SOM,
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GDB_OSABI_QNXNTO,
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GDB_OSABI_CYGWIN,
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GDB_OSABI_AIX,
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GDB_OSABI_DICOS,
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GDB_OSABI_DARWIN,
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GDB_OSABI_SYMBIAN,
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GDB_OSABI_INVALID /* keep this last */
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};
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@ -67,13 +67,12 @@ static const char * const gdb_osabi_names[] =
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"Interix",
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"HP/UX ELF",
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"HP/UX SOM",
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"QNX Neutrino",
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"Cygwin",
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"AIX",
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"DICOS",
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"Darwin",
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"Symbian",
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"<invalid>"
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};
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