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author | Jim Blandy <jimb@codesourcery.com> | 2003-05-13 00:08:58 +0000 |
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committer | Jim Blandy <jimb@codesourcery.com> | 2003-05-13 00:08:58 +0000 |
commit | ad20141640f390ddb988537bf7d93316e5388e4b (patch) | |
tree | c1645477648a946f3973c701fb89b76e295e5bcc /gdb/ppc64-linux-tdep.c | |
parent | ea1c83e1893b74392032336333d19c00a414611d (diff) | |
download | gdb-jimb-ppc64-linux-20030509-branch.tar.gz |
Patch from Will Schmidt <willschm@us.ibm.com>:jimb-ppc64-linux-20030509-branchcvs/jimb-ppc64-linux-20030509-branch
These changes enable support of PPC64 architecture.
* config/powerpc/ppc64linux.mh: New file.
* config/powerpc/ppc64linux.mt: New file.
* config/powerpc/tm-ppc64linux.h: New file.
* ppc64-linux-tdep.c: New file.
* configure.host: Add clause for powerpc64-*-linux*
* configure.tgt: Add clause for powerpc64-*-linux*
* elfread.c (record_minimal_symbol_and_info): If
DROP_TEXT_NAME_PREFIX_CHAR is #defined, then drop a leading
instance of that char from the names of text symbols.
(elf_symtab_read): If SKIP_DATA_IN_OPD is #defined, ignore data
symbols in the .opd section.
* ppc-linux-nat.c (PTRACE_XFER_TYPE): Change the default for this
to 'long'.
(PPC_PTRACE_POKEUSR_3264, PPC_PTRACE_PEEKUSR_3264,
PPC_PTRACE_POKEDATA_3264, PPC_PTRACE_PEEKDATA_3264): Provide
default definitions for these.
(ARCH64): New macro.
(ppc_wordsize_pid): New function.
(kernel_u_size): Handle 64-bit case.
(ppc_register_u_addr): Same.
(fetch_register): Use the *_3264 requests when
debugging a 64-bit process from a 32-bit GDB.
(store_register): Same.
(GDB_MAX_ALLOCA, child_xfer_memory, udot_info): Copied from
infptrace.c.
(_initialize_ppc_linux_nat): New function, to register our copy of
the udot_info command.
* ppc-linux-tdep.c (TDEP): New macro.
(ppc64_linux_svr4_fetch_link_map_offsets): New function.
(read_memory_addr): Copied from rs6000-tdep.c.
(ppc64_linux_convert_from_func_ptr_addr): New function.
* rs6000-tdep.c (skip_prologue): Recognize more instructions for
saving the 'lr' and 'cr' registers; don't just pre-emptively mask
in the 'st' opcode as soon as we see an 'mflr' or 'mfcr' opcode.
Recognize more instructions for updating the stack pointer, and
loading the TOC pointer.
(registers_powerpc64, registers_a35): New register tables.
(rs6000_gdbarch_init): Register the 64-bit solib functions.
* solib-svr4.c (solib_break_names): If SOLIB_BREAK_NAME is
#defined, include an entry for it.
(enable_break): Call CONVERT_FROM_FUNC_PTR_ADDR when trying to
guess the linker's base address.
* config/powerpc/tm-linux.h
(ppc64_linux_svr4_fetch_link_map_offsets,
ppc64_linux_convert_from_func_ptr_addr): New declarations.
Diffstat (limited to 'gdb/ppc64-linux-tdep.c')
-rw-r--r-- | gdb/ppc64-linux-tdep.c | 80 |
1 files changed, 80 insertions, 0 deletions
diff --git a/gdb/ppc64-linux-tdep.c b/gdb/ppc64-linux-tdep.c new file mode 100644 index 00000000000..f7e0a2aa4bb --- /dev/null +++ b/gdb/ppc64-linux-tdep.c @@ -0,0 +1,80 @@ +/* Target-dependent code for GDB, the GNU debugger. + + Copyright 1986, 1987, 1989, 1991, 1992, 1993, 1994, 1995, 1996, 1997, + 2000, 2001 Free Software Foundation, Inc. + + This file is part of GDB. + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation; either version 2 of the License, or + (at your option) any later version. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program; if not, write to the Free Software + Foundation, Inc., 59 Temple Place - Suite 330, + Boston, MA 02111-1307, USA. */ + +#include "defs.h" + + +/* These elfcore fuctions are defined in libbfd.a but only when host + == target, once we can convince the bfd to supply it these can go */ +#define _SYSCALL32 +#include "bfd.h" +#include "sysdep.h" +#include "bfdlink.h" +#include "libbfd.h" +#define ARCH_SIZE 0 +#include "elf-bfd.h" +#include "libiberty.h" +#include <sys/procfs.h> + + +/* + * Initialization + */ +void +_initialize_ppc64_linux_tdep (void) +{ + /* hardware/kernel supports single stepping */ + set_gdbarch_software_single_step (current_gdbarch, NULL); +} + +/* the start_address stored in the bfd is a function descriptor */ +#include "gdb/target.h" +CORE_ADDR +ppc64_bfd_get_start_address (bfd *abfd) +{ + extern struct target_ops exec_ops; + CORE_ADDR myaddr; + xfer_memory(abfd->start_address, (char *)&myaddr, 8, 0, 0, &exec_ops); + return myaddr; +} + +/* Fetch (and possibly build) an appropriate link_map_offsets + structure for GNU/Linux PPC targets using the struct offsets + defined in link.h (but without actual reference to that file). + + This makes it possible to access GNU/Linux PPC shared libraries + from a GDB that was not built on an GNU/Linux PPC host (for cross + debugging). + +*/ +#include "gdbcore.h" +#include "symfile.h" +#include "objfiles.h" + +#include "ppc-tdep.h" +#define TDEP gdbarch_tdep (current_gdbarch) + +static CORE_ADDR +read_memory_addr (CORE_ADDR memaddr, int len) +{ + return read_memory_unsigned_integer (memaddr, len); +} |