X-Git-Url: http://drtracing.org/?a=blobdiff_plain;f=gdb%2Fcorelow.c;h=28b61e5989ce26888bdf9d00c96b775212632178;hb=ebd3bcc1327e6a7de6daf6536134cb20be9c2cfd;hp=3e70ed4bfaeaa945cb5ac0aee9001143698b1d2f;hpb=961cb7b5ccf3306779af52da20094a2bac8030c6;p=deliverable%2Fbinutils-gdb.git diff --git a/gdb/corelow.c b/gdb/corelow.c index 3e70ed4bfa..28b61e5989 100644 --- a/gdb/corelow.c +++ b/gdb/corelow.c @@ -1,14 +1,14 @@ /* Core dump and executable file functions below target vector, for GDB. - Copyright 1986, 1987, 1989, 1991, 1992, 1993, 1994, 1995, 1996, - 1997, 1998, 1999, 2000, 2001, 2003, 2004, 2005 + Copyright (C) 1986, 1987, 1989, 1991, 1992, 1993, 1994, 1995, 1996, 1997, + 1998, 1999, 2000, 2001, 2003, 2004, 2005, 2006, 2007, 2008 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 + the Free Software Foundation; either version 3 of the License, or (at your option) any later version. This program is distributed in the hope that it will be useful, @@ -17,9 +17,7 @@ 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. */ + along with this program. If not, see . */ #include "defs.h" #include "arch-utils.h" @@ -43,14 +41,11 @@ #include "symfile.h" #include "exec.h" #include "readline/readline.h" -#include "observer.h" #include "gdb_assert.h" #include "exceptions.h" #include "solib.h" +#include "filenames.h" -#ifndef O_BINARY -#define O_BINARY 0 -#endif #ifndef O_LARGEFILE #define O_LARGEFILE 0 @@ -86,12 +81,10 @@ static void core_close (int); static void core_close_cleanup (void *ignore); -static void get_core_registers (int); +static void get_core_registers (struct regcache *, int); static void add_to_thread_list (bfd *, asection *, void *); -static int ignore (CORE_ADDR, bfd_byte *); - static int core_file_thread_alive (ptid_t tid); static void init_core_ops (void); @@ -207,11 +200,7 @@ core_close (int quitting) /* Clear out solib state while the bfd is still open. See comments in clear_solib in solib.c. */ -#ifdef CLEAR_SOLIB - CLEAR_SOLIB (); -#else clear_solib (); -#endif name = bfd_get_filename (core_bfd); if (!bfd_close (core_bfd)) @@ -236,21 +225,6 @@ core_close_cleanup (void *ignore) core_close (0/*ignored*/); } -/* Stub function for catch_errors around shared library hacking. FROM_TTYP - is really an int * which points to from_tty. */ - -static int -solib_add_stub (void *from_ttyp) -{ -#ifdef SOLIB_ADD - SOLIB_ADD (NULL, *(int *) from_ttyp, ¤t_target, auto_solib_add); -#else - solib_add (NULL, *(int *)from_ttyp, ¤t_target, auto_solib_add); -#endif - re_enable_breakpoints_in_shlibs (); - return 0; -} - /* Look for sections whose names start with `.reg/' so that we can extract the list of threads in a core file. */ @@ -298,9 +272,9 @@ core_open (char *filename, int from_tty) } filename = tilde_expand (filename); - if (filename[0] != '/') + if (!IS_ABSOLUTE_PATH(filename)) { - temp = concat (current_directory, "/", filename, NULL); + temp = concat (current_directory, "/", filename, (char *)NULL); xfree (filename); filename = temp; } @@ -316,7 +290,9 @@ core_open (char *filename, int from_tty) if (scratch_chan < 0) perror_with_name (filename); - temp_bfd = bfd_fdopenr (filename, gnutarget, scratch_chan); + temp_bfd = bfd_fopen (filename, gnutarget, + write_files ? FOPEN_RUB : FOPEN_RB, + scratch_chan); if (temp_bfd == NULL) perror_with_name (filename); @@ -370,7 +346,7 @@ core_open (char *filename, int from_tty) /* This is done first, before anything has a chance to query the inferior for information such as symbols. */ - observer_notify_inferior_created (&core_ops, from_tty); + post_create_inferior (&core_ops, from_tty); p = bfd_core_file_failing_command (core_bfd); if (p) @@ -383,7 +359,8 @@ core_open (char *filename, int from_tty) value is called ``target_signal'' and this function got the name ..._from_host(). */ printf_filtered (_("Program terminated with signal %d, %s.\n"), siggy, - target_signal_to_string (target_signal_from_host (siggy))); + target_signal_to_string ( + gdbarch_target_signal_from_host (core_gdbarch, siggy))); /* Build up thread list from BFD sections. */ @@ -394,14 +371,10 @@ core_open (char *filename, int from_tty) if (ontop) { /* Fetch all registers from core file. */ - target_fetch_registers (-1); - - /* Add symbols and section mappings for any shared libraries. */ - catch_errors (solib_add_stub, &from_tty, (char *) 0, RETURN_MASK_ALL); + target_fetch_registers (get_current_regcache (), -1); /* Now, set up the frame cache, and print the top of stack. */ - flush_cached_frames (); - select_frame (get_current_frame ()); + reinit_frame_cache (); print_stack_frame (get_selected_frame (NULL), 1, SRC_AND_LOC); } else @@ -440,7 +413,8 @@ core_detach (char *args, int from_tty) have a section by the appropriate name. Otherwise, just do nothing. */ static void -get_core_register_section (char *name, +get_core_register_section (struct regcache *regcache, + char *name, int which, char *human_name, int required) @@ -487,12 +461,12 @@ get_core_register_section (char *name, return; } - regset->supply_regset (regset, current_regcache, -1, contents, size); + regset->supply_regset (regset, regcache, -1, contents, size); return; } gdb_assert (core_vec); - core_vec->core_read_registers (contents, size, which, + core_vec->core_read_registers (regcache, contents, size, which, ((CORE_ADDR) bfd_section_vma (core_bfd, section))); } @@ -505,9 +479,9 @@ get_core_register_section (char *name, /* We just get all the registers, so we don't use regno. */ static void -get_core_registers (int regno) +get_core_registers (struct regcache *regcache, int regno) { - int status; + int i; if (!(core_gdbarch && gdbarch_regset_from_core_section_p (core_gdbarch)) && (core_vec == NULL || core_vec->core_read_registers == NULL)) @@ -517,11 +491,19 @@ get_core_registers (int regno) return; } - get_core_register_section (".reg", 0, "general-purpose", 1); - get_core_register_section (".reg2", 2, "floating-point", 0); - get_core_register_section (".reg-xfp", 3, "extended floating-point", 0); - - deprecated_registers_fetched (); + get_core_register_section (regcache, + ".reg", 0, "general-purpose", 1); + get_core_register_section (regcache, + ".reg2", 2, "floating-point", 0); + get_core_register_section (regcache, + ".reg-xfp", 3, "extended floating-point", 0); + get_core_register_section (regcache, + ".reg-ppc-vmx", 3, "ppc Altivec", 0); + + /* Supply dummy value for all registers not found in the core. */ + for (i = 0; i < gdbarch_num_regs (get_regcache_arch (regcache)); i++) + if (!regcache_valid_p (regcache, i)) + regcache_raw_supply (regcache, i, NULL); } static void @@ -539,11 +521,11 @@ core_xfer_partial (struct target_ops *ops, enum target_object object, { case TARGET_OBJECT_MEMORY: if (readbuf) - return (*ops->deprecated_xfer_memory) (offset, readbuf, len, - 0/*write*/, NULL, ops); + return (*ops->deprecated_xfer_memory) (offset, readbuf, + len, 0/*read*/, NULL, ops); if (writebuf) - return (*ops->deprecated_xfer_memory) (offset, readbuf, len, - 1/*write*/, NULL, ops); + return (*ops->deprecated_xfer_memory) (offset, (gdb_byte *) writebuf, + len, 1/*write*/, NULL, ops); return -1; case TARGET_OBJECT_AUXV: @@ -610,6 +592,18 @@ core_xfer_partial (struct target_ops *ops, enum target_object object, } return -1; + case TARGET_OBJECT_LIBRARIES: + if (core_gdbarch + && gdbarch_core_xfer_shared_libraries_p (core_gdbarch)) + { + if (writebuf) + return -1; + return + gdbarch_core_xfer_shared_libraries (core_gdbarch, + readbuf, offset, len); + } + /* FALL THROUGH */ + default: if (ops->beneath != NULL) return ops->beneath->to_xfer_partial (ops->beneath, object, annex, @@ -623,7 +617,7 @@ core_xfer_partial (struct target_ops *ops, enum target_object object, `gdb internal error' (since generic_mourn calls breakpoint_init_inferior). */ static int -ignore (CORE_ADDR addr, bfd_byte *contents) +ignore (struct bp_target_info *bp_tgt) { return 0; } @@ -641,6 +635,20 @@ core_file_thread_alive (ptid_t tid) return 1; } +/* Ask the current architecture what it knows about this core file. + That will be used, in turn, to pick a better architecture. This + wrapper could be avoided if targets got a chance to specialize + core_ops. */ + +static const struct target_desc * +core_read_description (struct target_ops *target) +{ + if (gdbarch_core_read_description_p (current_gdbarch)) + return gdbarch_core_read_description (current_gdbarch, target, core_bfd); + + return NULL; +} + /* Fill in core_ops with its defined operations and properties. */ static void @@ -662,6 +670,7 @@ init_core_ops (void) core_ops.to_remove_breakpoint = ignore; core_ops.to_create_inferior = find_default_create_inferior; core_ops.to_thread_alive = core_file_thread_alive; + core_ops.to_read_description = core_read_description; core_ops.to_stratum = core_stratum; core_ops.to_has_memory = 1; core_ops.to_has_stack = 1;