* fbsd-nat.c: New files with cleaned up contents of fbsd-proc.c.
* fbsd-nat.h: New file. * Makefile.in (ALLDEPFILES): Add fbsd-nat.c. (fbsd_nat_h): New variable. (fbsd-nat.o): New dependency.
This commit is contained in:
Mark Kettenis
parent
7a7b73b788
commit
578c1c03b6
@ -1,5 +1,11 @@
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2004-09-19 Mark Kettenis <kettenis@gnu.org>
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* fbsd-nat.c: New files with cleaned up contents of fbsd-proc.c.
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* fbsd-nat.h: New file.
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* Makefile.in (ALLDEPFILES): Add fbsd-nat.c.
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(fbsd_nat_h): New variable.
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(fbsd-nat.o): New dependency.
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* config/sparc/nbsd64.mt, config/sparc/obsd.mt,
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config/sparc/obsd64.mt (DEPRECATED_TM_FILE): Set to solib.h.
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@ -668,6 +668,7 @@ event_loop_h = event-loop.h
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event_top_h = event-top.h
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exec_h = exec.h $(target_h)
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expression_h = expression.h $(symtab_h) $(doublest_h)
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fbsd_nat_h = fbsd-nat.h
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f_lang_h = f-lang.h
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frame_base_h = frame-base.h
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frame_h = frame.h
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@ -1358,7 +1359,9 @@ ALLDEPFILES = \
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bsd-kvm.c \
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coff-solib.c \
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core-regset.c core-aout.c corelow.c \
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dcache.c exec.c fork-child.c \
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dcache.c exec.c \
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fbsd-nat.c \
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fork-child.c \
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glibc-tdep.c \
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go32-nat.c h8300-tdep.c \
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hppa-tdep.c hppa-hpux-tdep.c \
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@ -1868,6 +1871,9 @@ exec.o: exec.c $(defs_h) $(frame_h) $(inferior_h) $(target_h) $(gdbcmd_h) \
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expprint.o: expprint.c $(defs_h) $(symtab_h) $(gdbtypes_h) $(expression_h) \
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$(value_h) $(language_h) $(parser_defs_h) $(user_regs_h) $(target_h) \
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$(gdb_string_h) $(block_h)
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fbsd-nat.o: fbsd-nat.c $(defs_h) $(gdbcore_h) $(inferior_h) $(regcache_h) \
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$(regset_h) $(gdb_assert_h) $(gdb_string_h) $(elf_bfd_h) \
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$(fbsd_nat_h)
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fbsd-proc.o: fbsd-proc.c $(defs_h) $(gdbcore_h) $(inferior_h) $(regcache_h) \
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$(regset_h) $(gdb_assert_h) $(gdb_string_h) $(elf_bfd_h)
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f-exp.o: f-exp.c $(defs_h) $(gdb_string_h) $(expression_h) $(value_h) \
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181
gdb/fbsd-nat.c
Normal file
181
gdb/fbsd-nat.c
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@ -0,0 +1,181 @@
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/* Native-dependent code for FreeBSD.
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Copyright 2002, 2003, 2004 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 2 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, write to the Free Software
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Foundation, Inc., 59 Temple Place - Suite 330,
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Boston, MA 02111-1307, USA. */
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#include "defs.h"
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#include "gdbcore.h"
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#include "inferior.h"
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#include "regcache.h"
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#include "regset.h"
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#include "gdb_assert.h"
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#include "gdb_string.h"
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#include <sys/procfs.h>
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#include <sys/types.h>
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#include "elf-bfd.h"
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#include "fbsd-nat.h"
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/* Return a the name of file that can be opened to get the symbols for
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the child process identified by PID. */
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char *
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fbsd_pid_to_exec_file (int pid)
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{
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char *path;
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char *buf;
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path = xstrprintf ("/proc/%d/file", pid);
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buf = xcalloc (MAXPATHLEN, sizeof (char));
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make_cleanup (xfree, path);
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make_cleanup (xfree, buf);
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if (readlink (path, buf, MAXPATHLEN) > 0)
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return buf;
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return NULL;
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}
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static int
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fbsd_read_mapping (FILE *mapfile, unsigned long *start, unsigned long *end,
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char *protection)
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{
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/* FreeBSD 5.1-RELEASE uses a 256-byte buffer. */
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char buf[256];
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int resident, privateresident;
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unsigned long obj;
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int ret = EOF;
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/* As of FreeBSD 5.0-RELEASE, the layout is described in
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/usr/src/sys/fs/procfs/procfs_map.c. Somewhere in 5.1-CURRENT a
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new column was added to the procfs map. Therefore we can't use
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fscanf since we need to support older releases too. */
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if (fgets (buf, sizeof buf, mapfile) != NULL)
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ret = sscanf (buf, "%lx %lx %d %d %lx %s", start, end,
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&resident, &privateresident, &obj, protection);
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return (ret != 0 && ret != EOF);
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}
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/* Iterate over all the memory regions in the current inferior,
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calling FUNC for each memory region. OBFD is passed as the last
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argument to FUNC. */
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int
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fbsd_find_memory_regions (int (*func) (CORE_ADDR, unsigned long,
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int, int, int, void *),
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void *obfd)
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{
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pid_t pid = ptid_get_pid (inferior_ptid);
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char *mapfilename;
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FILE *mapfile;
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unsigned long start, end, size;
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char protection[4];
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int read, write, exec;
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mapfilename = xstrprintf ("/proc/%ld/map", (long) pid);
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mapfile = fopen (mapfilename, "r");
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if (mapfile == NULL)
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error ("Couldn't open %s\n", mapfilename);
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if (info_verbose)
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fprintf_filtered (gdb_stdout,
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"Reading memory regions from %s\n", mapfilename);
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/* Now iterate until end-of-file. */
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while (fbsd_read_mapping (mapfile, &start, &end, &protection[0]))
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{
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size = end - start;
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read = (strchr (protection, 'r') != 0);
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write = (strchr (protection, 'w') != 0);
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exec = (strchr (protection, 'x') != 0);
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if (info_verbose)
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{
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fprintf_filtered (gdb_stdout,
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"Save segment, %ld bytes at 0x%s (%c%c%c)\n",
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size, paddr_nz (start),
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read ? 'r' : '-',
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write ? 'w' : '-',
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exec ? 'x' : '-');
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}
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/* Invoke the callback function to create the corefile segment. */
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func (start, size, read, write, exec, obfd);
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}
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fclose (mapfile);
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return 0;
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}
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/* Create appropriate note sections for a corefile, returning them in
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allocated memory. */
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char *
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fbsd_make_corefile_notes (bfd *obfd, int *note_size)
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{
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struct gdbarch *gdbarch = current_gdbarch;
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const struct regcache *regcache = current_regcache;
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gregset_t gregs;
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fpregset_t fpregs;
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char *note_data = NULL;
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Elf_Internal_Ehdr *i_ehdrp;
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const struct regset *regset;
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size_t size;
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/* Put a "FreeBSD" label in the ELF header. */
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i_ehdrp = elf_elfheader (obfd);
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i_ehdrp->e_ident[EI_OSABI] = ELFOSABI_FREEBSD;
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gdb_assert (gdbarch_regset_from_core_section_p (gdbarch));
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size = sizeof gregs;
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regset = gdbarch_regset_from_core_section (gdbarch, ".reg", size);
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gdb_assert (regset && regset->collect_regset);
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regset->collect_regset (regset, regcache, -1, &gregs, size);
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note_data = elfcore_write_prstatus (obfd, note_data, note_size,
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ptid_get_pid (inferior_ptid),
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stop_signal, &gregs);
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size = sizeof fpregs;
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regset = gdbarch_regset_from_core_section (gdbarch, ".reg2", size);
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gdb_assert (regset && regset->collect_regset);
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regset->collect_regset (regset, regcache, -1, &fpregs, size);
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note_data = elfcore_write_prfpreg (obfd, note_data, note_size,
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&fpregs, sizeof (fpregs));
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if (get_exec_file (0))
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{
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char *fname = strrchr (get_exec_file (0), '/') + 1;
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char *psargs = xstrdup (fname);
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if (get_inferior_args ())
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psargs = reconcat (psargs, psargs, " ", get_inferior_args (), NULL);
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note_data = elfcore_write_prpsinfo (obfd, note_data, note_size,
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fname, psargs);
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}
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make_cleanup (xfree, note_data);
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return note_data;
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}
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43
gdb/fbsd-nat.h
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43
gdb/fbsd-nat.h
Normal file
@ -0,0 +1,43 @@
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/* Native-dependent code for FreeBSD.
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Copyright 2004 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 2 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, write to the Free Software
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Foundation, Inc., 59 Temple Place - Suite 330,
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Boston, MA 02111-1307, USA. */
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#ifndef FBSD_NAT_H
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#define FBSD_NAT_H
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/* Return a the name of file that can be opened to get the symbols for
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the child process identified by PID. */
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extern char *fbsd_pid_to_exec_file (int pid);
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/* Iterate over all the memory regions in the current inferior,
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calling FUNC for each memory region. OBFD is passed as the last
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argument to FUNC. */
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extern int fbsd_find_memory_regions (int (*func) (CORE_ADDR, unsigned long,
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int, int, int, void *),
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void *obfd);
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/* Create appropriate note sections for a corefile, returning them in
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allocated memory. */
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extern char *fbsd_make_corefile_notes (bfd *obfd, int *note_size);
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#endif /* fbsd-nat.h */
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