* linux-proc.c: Delete file.
* Makefile.in: Update.
* config/sparc/linux64.mh (NATDEPFILES):
* config/sparc/linux.mh (NATDEPFILES): Update.
* config/s390/s390.mh (NATDEPFILES): Update.
* config/powerpc/ppc64-linux.mh (NATDEPFILES): Update.
* config/powerpc/linux.mh (NATDEPFILES): Update.
* config/pa/linux.mh (NATDEPFILES): Update.
* config/mips/linux.mh (NATDEPFILES): Update.
* config/m68k/linux.mh (NATDEPFILES): Update.
* config/ia64/linux.mh (NATDEPFILES): Update.
* config/i386/linux64.mh (NATDEPFILES): Update.
* config/i386/linux.mh (NATDEPFILES): Update.
* config/arm/linux.mh (NATDEPFILES): Update.
* config/alpha/alpha-linux.mh (NATDEPFILES): Update.
* linux-nat.c: Update copyright. Include <sys/param.h>,
<sys/procfs.h>, "elf-bfd.h", "gregset.h", <ctype.h>,
"gdbthread.h", "gdb_stat.h", <fcntl.h>.
(O_LARGEFILE): Possibly define.
(_initialize_linux_nat, linux_proc_pending_signals)
(add_line_to_sigset, linux_proc_xfer_memory)
(linux_nat_info_proc_cmd, linux_nat_make_corefile_notes)
(linux_nat_do_registers, linux_nat_corefile_thread_callback)
(struct linux_corefile_thread_data)
(linux_nat_do_thread_registers, linux_nat_find_memory_regions)
(child_pid_to_exec_file): Insert code previously in linux-proc.c.
+2004-09-28 Andrew Cagney <cagney@gnu.org>
+
+ * linux-proc.c: Delete file.
+ * Makefile.in: Update.
+ * config/sparc/linux64.mh (NATDEPFILES):
+ * config/sparc/linux.mh (NATDEPFILES): Update.
+ * config/s390/s390.mh (NATDEPFILES): Update.
+ * config/powerpc/ppc64-linux.mh (NATDEPFILES): Update.
+ * config/powerpc/linux.mh (NATDEPFILES): Update.
+ * config/pa/linux.mh (NATDEPFILES): Update.
+ * config/mips/linux.mh (NATDEPFILES): Update.
+ * config/m68k/linux.mh (NATDEPFILES): Update.
+ * config/ia64/linux.mh (NATDEPFILES): Update.
+ * config/i386/linux64.mh (NATDEPFILES): Update.
+ * config/i386/linux.mh (NATDEPFILES): Update.
+ * config/arm/linux.mh (NATDEPFILES): Update.
+ * config/alpha/alpha-linux.mh (NATDEPFILES): Update.
+ * linux-nat.c: Update copyright. Include <sys/param.h>,
+ <sys/procfs.h>, "elf-bfd.h", "gregset.h", <ctype.h>,
+ "gdbthread.h", "gdb_stat.h", <fcntl.h>.
+ (O_LARGEFILE): Possibly define.
+ (_initialize_linux_nat, linux_proc_pending_signals)
+ (add_line_to_sigset, linux_proc_xfer_memory)
+ (linux_nat_info_proc_cmd, linux_nat_make_corefile_notes)
+ (linux_nat_do_registers, linux_nat_corefile_thread_callback)
+ (struct linux_corefile_thread_data)
+ (linux_nat_do_thread_registers, linux_nat_find_memory_regions)
+ (child_pid_to_exec_file): Insert code previously in linux-proc.c.
+
2004-09-16 Andrew Cagney <cagney@gnu.org>
* lin-lwp.c: Delete file.
$(gdbcore_h) $(osabi_h) $(symtab_h) $(gdb_assert_h) $(amd64_tdep_h) \
$(nbsd_tdep_h) $(solib_svr4_h)
amd64obsd-nat.o: amd64obsd-nat.c $(defs_h) $(gdbcore_h) $(regcache_h) \
- $(target_h) $(gdb_assert_h) $(amd64_tdep_h) $(amd64_nat_h) $(bsd_kvm_h)
+ $(target_h) $(gdb_assert_h) $(amd64_tdep_h) $(amd64_nat_h) \
+ $(bsd_kvm_h)
amd64obsd-tdep.o: amd64obsd-tdep.c $(defs_h) $(frame_h) $(gdbcore_h) \
$(symtab_h) $(objfiles_h) $(osabi_h) $(regset_h) $(target_h) \
$(gdb_assert_h) $(gdb_string_h) $(amd64_tdep_h) $(i387_tdep_h) \
$(objfiles_h) $(elf_dwarf2_h) $(buildsym_h) $(demangle_h) \
$(expression_h) $(filenames_h) $(macrotab_h) $(language_h) \
$(complaints_h) $(bcache_h) $(dwarf2expr_h) $(dwarf2loc_h) \
- $(cp_support_h) $(hashtab_h) $(gdb_string_h) $(gdb_assert_h) \
- $(command_h) $(gdbcmd_h)
+ $(cp_support_h) $(hashtab_h) $(command_h) $(gdbcmd_h) \
+ $(gdb_string_h) $(gdb_assert_h)
dwarfread.o: dwarfread.c $(defs_h) $(symtab_h) $(gdbtypes_h) $(objfiles_h) \
$(elf_dwarf_h) $(buildsym_h) $(demangle_h) $(expression_h) \
$(language_h) $(complaints_h) $(gdb_string_h)
fbsd-nat.o: fbsd-nat.c $(defs_h) $(gdbcore_h) $(inferior_h) $(regcache_h) \
$(regset_h) $(gdb_assert_h) $(gdb_string_h) $(elf_bfd_h) \
$(fbsd_nat_h)
-fbsd-proc.o: fbsd-proc.c $(defs_h) $(gdbcore_h) $(inferior_h) $(regcache_h) \
- $(regset_h) $(gdb_assert_h) $(gdb_string_h) $(elf_bfd_h)
f-exp.o: f-exp.c $(defs_h) $(gdb_string_h) $(expression_h) $(value_h) \
$(parser_defs_h) $(language_h) $(f_lang_h) $(bfd_h) $(symfile_h) \
$(objfiles_h) $(block_h)
$(symfile_h) $(objfiles_h) $(source_h) $(demangle_h) $(value_h) \
$(completer_h) $(cp_abi_h) $(parser_defs_h) $(block_h) \
$(objc_lang_h) $(linespec_h)
-lin-lwp.o: lin-lwp.c $(defs_h) $(gdb_assert_h) $(gdb_string_h) $(gdb_wait_h) \
- $(gdbthread_h) $(inferior_h) $(target_h) $(regcache_h) $(gdbcmd_h) \
- $(linux_nat_h)
linux-nat.o: linux-nat.c $(defs_h) $(inferior_h) $(target_h) $(gdb_string_h) \
$(gdb_wait_h) $(gdb_assert_h) $(linux_nat_h) $(gdbthread_h) \
- $(gdbcmd_h) $(regcache_h)
-linux-proc.o: linux-proc.c $(defs_h) $(inferior_h) $(gdb_stat_h) \
- $(regcache_h) $(gregset_h) $(gdbcore_h) $(gdbthread_h) $(elf_bfd_h) \
- $(cli_decode_h) $(gdb_string_h) $(linux_nat_h)
+ $(gdbcmd_h) $(regcache_h) $(elf_bfd_h) $(gregset_h) $(gdbcore_h) \
+ $(gdbthread_h) $(gdb_stat_h)
lynx-nat.o: lynx-nat.c $(defs_h) $(frame_h) $(inferior_h) $(target_h) \
$(gdbcore_h) $(regcache_h)
m2-exp.o: m2-exp.c $(defs_h) $(gdb_string_h) $(expression_h) $(language_h) \
$(complaints_h) $(gdb_stabs_h) $(aout_stab_gnu_h)
xcoffsolib.o: xcoffsolib.c $(defs_h) $(bfd_h) $(xcoffsolib_h) $(inferior_h) \
$(gdbcmd_h) $(symfile_h) $(frame_h) $(gdb_regex_h)
-xstormy16-tdep.o: xstormy16-tdep.c $(defs_h) $(value_h) $(inferior_h) \
- $(arch_utils_h) $(regcache_h) $(gdbcore_h) $(objfiles_h) \
- $(dis_asm_h)
+xstormy16-tdep.o: xstormy16-tdep.c $(defs_h) $(frame_h) $(frame_base_h) \
+ $(frame_unwind_h) $(dwarf2_frame_h) $(symtab_h) $(gdbtypes_h) \
+ $(gdbcmd_h) $(gdbcore_h) $(value_h) $(dis_asm_h) $(inferior_h) \
+ $(gdb_string_h) $(gdb_assert_h) $(arch_utils_h) $(floatformat_h) \
+ $(regcache_h) $(doublest_h) $(osabi_h) $(objfiles_h)
#
# gdb/cli/ dependencies
# Host: Little-endian Alpha running Linux
NAT_FILE= nm-linux.h
-NATDEPFILES= infptrace.o inftarg.o corelow.o alpha-nat.o linux-proc.o \
+NATDEPFILES= infptrace.o inftarg.o corelow.o alpha-nat.o \
fork-child.o proc-service.o thread-db.o gcore.o \
linux-nat.o
NAT_FILE= nm-linux.h
NATDEPFILES= infptrace.o inftarg.o fork-child.o corelow.o \
- core-regset.o arm-linux-nat.o linux-proc.o gcore.o \
+ core-regset.o arm-linux-nat.o gcore.o \
proc-service.o thread-db.o linux-nat.o
LOADLIBES= -ldl -rdynamic
# Host: Intel 386 running GNU/Linux.
NAT_FILE= nm-linux.h
-NATDEPFILES= infptrace.o inftarg.o fork-child.o corelow.o linux-proc.o \
+NATDEPFILES= infptrace.o inftarg.o fork-child.o corelow.o \
core-aout.o i386-nat.o i386-linux-nat.o \
- proc-service.o thread-db.o linux-proc.o gcore.o \
+ proc-service.o thread-db.o gcore.o \
linux-nat.o
# The dynamically loaded libthread_db needs access to symbols in the
# Host: GNU/Linux x86-64
NATDEPFILES= infptrace.o inftarg.o fork-child.o \
i386-nat.o amd64-nat.o amd64-linux-nat.o linux-nat.o \
- proc-service.o thread-db.o linux-proc.o gcore.o
+ proc-service.o thread-db.o gcore.o
NAT_FILE= nm-linux64.h
# The dynamically loaded libthread_db needs access to symbols in the
NAT_FILE= nm-linux.h
NATDEPFILES= infptrace.o inftarg.o fork-child.o corelow.o gcore.o \
- core-aout.o core-regset.o ia64-linux-nat.o linux-proc.o \
+ core-aout.o core-regset.o ia64-linux-nat.o \
proc-service.o thread-db.o linux-nat.o
LOADLIBES = -ldl -rdynamic
NAT_FILE= nm-linux.h
NATDEPFILES= infptrace.o inftarg.o fork-child.o \
- corelow.o core-aout.o m68klinux-nat.o linux-proc.o gcore.o \
+ corelow.o core-aout.o m68klinux-nat.o gcore.o \
proc-service.o thread-db.o linux-nat.o
# The dynamically loaded libthread_db needs access to symbols in the
# Host: Linux/MIPS
NAT_FILE= nm-linux.h
NATDEPFILES= infptrace.o inftarg.o fork-child.o mips-linux-nat.o \
- thread-db.o proc-service.o linux-proc.o gcore.o \
+ thread-db.o proc-service.o gcore.o \
linux-nat.o
LOADLIBES = -ldl -rdynamic
XDEPFILES=
NAT_FILE= nm-linux.h
NATDEPFILES= infptrace.o inftarg.o fork-child.o corelow.o gcore.o \
- core-regset.o hppa-linux-nat.o linux-proc.o \
+ core-regset.o hppa-linux-nat.o \
proc-service.o thread-db.o linux-nat.o
LOADLIBES = -ldl -rdynamic
XM_CLIBS=
NAT_FILE= nm-linux.h
-NATDEPFILES= infptrace.o inftarg.o fork-child.o linux-proc.o \
+NATDEPFILES= infptrace.o inftarg.o fork-child.o \
ppc-linux-nat.o proc-service.o thread-db.o \
gcore.o linux-nat.o
XM_CLIBS=
NAT_FILE= nm-ppc64-linux.h
-NATDEPFILES= infptrace.o inftarg.o fork-child.o linux-proc.o \
+NATDEPFILES= infptrace.o inftarg.o fork-child.o \
ppc-linux-nat.o proc-service.o thread-db.o \
gcore.o linux-nat.o
# Host: S390, running Linux
NAT_FILE= nm-linux.h
NATDEPFILES= infptrace.o inftarg.o fork-child.o corelow.o s390-nat.o \
- linux-proc.o gcore.o thread-db.o proc-service.o linux-nat.o
+ gcore.o thread-db.o proc-service.o linux-nat.o
LOADLIBES = -ldl -rdynamic
corelow.o core-regset.o fork-child.o \
infptrace.o inftarg.o \
proc-service.o thread-db.o \
- linux-proc.o gcore.o linux-nat.o
+ gcore.o linux-nat.o
# The dynamically loaded libthread_db needs access to symbols in the
# gdb executable.
corelow.o core-regset.o \
fork-child.o infptrace.o inftarg.o \
proc-service.o thread-db.o \
- linux-proc.o gcore.o linux-nat.o
+ gcore.o linux-nat.o
# The dynamically loaded libthread_db needs access to symbols in the
# gdb executable.
/* GNU/Linux native-dependent code common to multiple platforms.
- Copyright (C) 2003, 2004 Free Software Foundation, Inc.
+
+ Copyright 2001, 2002, 2003, 2004 Free Software Foundation, Inc.
This file is part of GDB.
#include "gdbthread.h"
#include "gdbcmd.h"
#include "regcache.h"
+#include <sys/param.h> /* for MAXPATHLEN */
+#include <sys/procfs.h> /* for elf_gregset etc. */
+#include "elf-bfd.h" /* for elfcore_write_* */
+#include "gregset.h" /* for gregset */
+#include "gdbcore.h" /* for get_exec_file */
+#include <ctype.h> /* for isdigit */
+#include "gdbthread.h" /* for struct thread_info etc. */
+#include "gdb_stat.h" /* for struct stat */
+#include <fcntl.h> /* for O_RDONLY */
+
+#ifndef O_LARGEFILE
+#define O_LARGEFILE 0
+#endif
/* If the system headers did not provide the constants, hard-code the normal
values. */
arrival of a SIGCHLD. */
}
+/* Accepts an integer PID; Returns a string representing a file that
+ can be opened to get the symbols for the child process. */
+
+char *
+child_pid_to_exec_file (int pid)
+{
+ char *name1, *name2;
+
+ name1 = xmalloc (MAXPATHLEN);
+ name2 = xmalloc (MAXPATHLEN);
+ make_cleanup (xfree, name1);
+ make_cleanup (xfree, name2);
+ memset (name2, 0, MAXPATHLEN);
+
+ sprintf (name1, "/proc/%d/exe", pid);
+ if (readlink (name1, name2, MAXPATHLEN) > 0)
+ return name2;
+ else
+ return name1;
+}
+
+/* Service function for corefiles and info proc. */
+
+static int
+read_mapping (FILE *mapfile,
+ long long *addr,
+ long long *endaddr,
+ char *permissions,
+ long long *offset,
+ char *device, long long *inode, char *filename)
+{
+ int ret = fscanf (mapfile, "%llx-%llx %s %llx %s %llx",
+ addr, endaddr, permissions, offset, device, inode);
+
+ if (ret > 0 && ret != EOF && *inode != 0)
+ {
+ /* Eat everything up to EOL for the filename. This will prevent
+ weird filenames (such as one with embedded whitespace) from
+ confusing this code. It also makes this code more robust in
+ respect to annotations the kernel may add after the filename.
+
+ Note the filename is used for informational purposes
+ only. */
+ ret += fscanf (mapfile, "%[^\n]\n", filename);
+ }
+ else
+ {
+ filename[0] = '\0'; /* no filename */
+ fscanf (mapfile, "\n");
+ }
+ return (ret != 0 && ret != EOF);
+}
+
+/* Fills the "to_find_memory_regions" target vector. Lists the memory
+ regions in the inferior for a corefile. */
+
+static int
+linux_nat_find_memory_regions (int (*func) (CORE_ADDR,
+ unsigned long,
+ int, int, int, void *), void *obfd)
+{
+ long long pid = PIDGET (inferior_ptid);
+ char mapsfilename[MAXPATHLEN];
+ FILE *mapsfile;
+ long long addr, endaddr, size, offset, inode;
+ char permissions[8], device[8], filename[MAXPATHLEN];
+ int read, write, exec;
+ int ret;
+
+ /* Compose the filename for the /proc memory map, and open it. */
+ sprintf (mapsfilename, "/proc/%lld/maps", pid);
+ if ((mapsfile = fopen (mapsfilename, "r")) == NULL)
+ error ("Could not open %s\n", mapsfilename);
+
+ if (info_verbose)
+ fprintf_filtered (gdb_stdout,
+ "Reading memory regions from %s\n", mapsfilename);
+
+ /* Now iterate until end-of-file. */
+ while (read_mapping (mapsfile, &addr, &endaddr, &permissions[0],
+ &offset, &device[0], &inode, &filename[0]))
+ {
+ size = endaddr - addr;
+
+ /* Get the segment's permissions. */
+ read = (strchr (permissions, 'r') != 0);
+ write = (strchr (permissions, 'w') != 0);
+ exec = (strchr (permissions, 'x') != 0);
+
+ if (info_verbose)
+ {
+ fprintf_filtered (gdb_stdout,
+ "Save segment, %lld bytes at 0x%s (%c%c%c)",
+ size, paddr_nz (addr),
+ read ? 'r' : ' ',
+ write ? 'w' : ' ', exec ? 'x' : ' ');
+ if (filename && filename[0])
+ fprintf_filtered (gdb_stdout, " for %s", filename);
+ fprintf_filtered (gdb_stdout, "\n");
+ }
+
+ /* Invoke the callback function to create the corefile
+ segment. */
+ func (addr, size, read, write, exec, obfd);
+ }
+ fclose (mapsfile);
+ return 0;
+}
+
+/* Records the thread's register state for the corefile note
+ section. */
+
+static char *
+linux_nat_do_thread_registers (bfd *obfd, ptid_t ptid,
+ char *note_data, int *note_size)
+{
+ gdb_gregset_t gregs;
+ gdb_fpregset_t fpregs;
+#ifdef FILL_FPXREGSET
+ gdb_fpxregset_t fpxregs;
+#endif
+ unsigned long lwp = ptid_get_lwp (ptid);
+
+ fill_gregset (&gregs, -1);
+ note_data = (char *) elfcore_write_prstatus (obfd,
+ note_data,
+ note_size,
+ lwp,
+ stop_signal, &gregs);
+
+ fill_fpregset (&fpregs, -1);
+ note_data = (char *) elfcore_write_prfpreg (obfd,
+ note_data,
+ note_size,
+ &fpregs, sizeof (fpregs));
+#ifdef FILL_FPXREGSET
+ fill_fpxregset (&fpxregs, -1);
+ note_data = (char *) elfcore_write_prxfpreg (obfd,
+ note_data,
+ note_size,
+ &fpxregs, sizeof (fpxregs));
+#endif
+ return note_data;
+}
+
+struct linux_nat_corefile_thread_data
+{
+ bfd *obfd;
+ char *note_data;
+ int *note_size;
+ int num_notes;
+};
+
+/* Called by gdbthread.c once per thread. Records the thread's
+ register state for the corefile note section. */
+
+static int
+linux_nat_corefile_thread_callback (struct lwp_info *ti, void *data)
+{
+ struct linux_nat_corefile_thread_data *args = data;
+ ptid_t saved_ptid = inferior_ptid;
+
+ inferior_ptid = ti->ptid;
+ registers_changed ();
+ target_fetch_registers (-1); /* FIXME should not be necessary;
+ fill_gregset should do it automatically. */
+ args->note_data = linux_nat_do_thread_registers (args->obfd,
+ ti->ptid,
+ args->note_data,
+ args->note_size);
+ args->num_notes++;
+ inferior_ptid = saved_ptid;
+ registers_changed ();
+ target_fetch_registers (-1); /* FIXME should not be necessary;
+ fill_gregset should do it automatically. */
+ return 0;
+}
+
+/* Records the register state for the corefile note section. */
+
+static char *
+linux_nat_do_registers (bfd *obfd, ptid_t ptid,
+ char *note_data, int *note_size)
+{
+ registers_changed ();
+ target_fetch_registers (-1); /* FIXME should not be necessary;
+ fill_gregset should do it automatically. */
+ return linux_nat_do_thread_registers (obfd,
+ ptid_build (ptid_get_pid (inferior_ptid),
+ ptid_get_pid (inferior_ptid),
+ 0),
+ note_data, note_size);
+ return note_data;
+}
+
+/* Fills the "to_make_corefile_note" target vector. Builds the note
+ section for a corefile, and returns it in a malloc buffer. */
+
+static char *
+linux_nat_make_corefile_notes (bfd *obfd, int *note_size)
+{
+ struct linux_nat_corefile_thread_data thread_args;
+ struct cleanup *old_chain;
+ char fname[16] = { '\0' };
+ char psargs[80] = { '\0' };
+ char *note_data = NULL;
+ ptid_t current_ptid = inferior_ptid;
+ char *auxv;
+ int auxv_len;
+
+ if (get_exec_file (0))
+ {
+ strncpy (fname, strrchr (get_exec_file (0), '/') + 1, sizeof (fname));
+ strncpy (psargs, get_exec_file (0), sizeof (psargs));
+ if (get_inferior_args ())
+ {
+ strncat (psargs, " ", sizeof (psargs) - strlen (psargs));
+ strncat (psargs, get_inferior_args (),
+ sizeof (psargs) - strlen (psargs));
+ }
+ note_data = (char *) elfcore_write_prpsinfo (obfd,
+ note_data,
+ note_size, fname, psargs);
+ }
+
+ /* Dump information for threads. */
+ thread_args.obfd = obfd;
+ thread_args.note_data = note_data;
+ thread_args.note_size = note_size;
+ thread_args.num_notes = 0;
+ iterate_over_lwps (linux_nat_corefile_thread_callback, &thread_args);
+ if (thread_args.num_notes == 0)
+ {
+ /* iterate_over_threads didn't come up with any threads; just
+ use inferior_ptid. */
+ note_data = linux_nat_do_registers (obfd, inferior_ptid,
+ note_data, note_size);
+ }
+ else
+ {
+ note_data = thread_args.note_data;
+ }
+
+ auxv_len = target_auxv_read (¤t_target, &auxv);
+ if (auxv_len > 0)
+ {
+ note_data = elfcore_write_note (obfd, note_data, note_size,
+ "CORE", NT_AUXV, auxv, auxv_len);
+ xfree (auxv);
+ }
+
+ make_cleanup (xfree, note_data);
+ return note_data;
+}
+
+/* Implement the "info proc" command. */
+
+static void
+linux_nat_info_proc_cmd (char *args, int from_tty)
+{
+ long long pid = PIDGET (inferior_ptid);
+ FILE *procfile;
+ char **argv = NULL;
+ char buffer[MAXPATHLEN];
+ char fname1[MAXPATHLEN], fname2[MAXPATHLEN];
+ int cmdline_f = 1;
+ int cwd_f = 1;
+ int exe_f = 1;
+ int mappings_f = 0;
+ int environ_f = 0;
+ int status_f = 0;
+ int stat_f = 0;
+ int all = 0;
+ struct stat dummy;
+
+ if (args)
+ {
+ /* Break up 'args' into an argv array. */
+ if ((argv = buildargv (args)) == NULL)
+ nomem (0);
+ else
+ make_cleanup_freeargv (argv);
+ }
+ while (argv != NULL && *argv != NULL)
+ {
+ if (isdigit (argv[0][0]))
+ {
+ pid = strtoul (argv[0], NULL, 10);
+ }
+ else if (strncmp (argv[0], "mappings", strlen (argv[0])) == 0)
+ {
+ mappings_f = 1;
+ }
+ else if (strcmp (argv[0], "status") == 0)
+ {
+ status_f = 1;
+ }
+ else if (strcmp (argv[0], "stat") == 0)
+ {
+ stat_f = 1;
+ }
+ else if (strcmp (argv[0], "cmd") == 0)
+ {
+ cmdline_f = 1;
+ }
+ else if (strncmp (argv[0], "exe", strlen (argv[0])) == 0)
+ {
+ exe_f = 1;
+ }
+ else if (strcmp (argv[0], "cwd") == 0)
+ {
+ cwd_f = 1;
+ }
+ else if (strncmp (argv[0], "all", strlen (argv[0])) == 0)
+ {
+ all = 1;
+ }
+ else
+ {
+ /* [...] (future options here) */
+ }
+ argv++;
+ }
+ if (pid == 0)
+ error ("No current process: you must name one.");
+
+ sprintf (fname1, "/proc/%lld", pid);
+ if (stat (fname1, &dummy) != 0)
+ error ("No /proc directory: '%s'", fname1);
+
+ printf_filtered ("process %lld\n", pid);
+ if (cmdline_f || all)
+ {
+ sprintf (fname1, "/proc/%lld/cmdline", pid);
+ if ((procfile = fopen (fname1, "r")) > 0)
+ {
+ fgets (buffer, sizeof (buffer), procfile);
+ printf_filtered ("cmdline = '%s'\n", buffer);
+ fclose (procfile);
+ }
+ else
+ warning ("unable to open /proc file '%s'", fname1);
+ }
+ if (cwd_f || all)
+ {
+ sprintf (fname1, "/proc/%lld/cwd", pid);
+ memset (fname2, 0, sizeof (fname2));
+ if (readlink (fname1, fname2, sizeof (fname2)) > 0)
+ printf_filtered ("cwd = '%s'\n", fname2);
+ else
+ warning ("unable to read link '%s'", fname1);
+ }
+ if (exe_f || all)
+ {
+ sprintf (fname1, "/proc/%lld/exe", pid);
+ memset (fname2, 0, sizeof (fname2));
+ if (readlink (fname1, fname2, sizeof (fname2)) > 0)
+ printf_filtered ("exe = '%s'\n", fname2);
+ else
+ warning ("unable to read link '%s'", fname1);
+ }
+ if (mappings_f || all)
+ {
+ sprintf (fname1, "/proc/%lld/maps", pid);
+ if ((procfile = fopen (fname1, "r")) > 0)
+ {
+ long long addr, endaddr, size, offset, inode;
+ char permissions[8], device[8], filename[MAXPATHLEN];
+
+ printf_filtered ("Mapped address spaces:\n\n");
+ if (TARGET_ADDR_BIT == 32)
+ {
+ printf_filtered ("\t%10s %10s %10s %10s %7s\n",
+ "Start Addr",
+ " End Addr",
+ " Size", " Offset", "objfile");
+ }
+ else
+ {
+ printf_filtered (" %18s %18s %10s %10s %7s\n",
+ "Start Addr",
+ " End Addr",
+ " Size", " Offset", "objfile");
+ }
+
+ while (read_mapping (procfile, &addr, &endaddr, &permissions[0],
+ &offset, &device[0], &inode, &filename[0]))
+ {
+ size = endaddr - addr;
+
+ /* FIXME: carlton/2003-08-27: Maybe the printf_filtered
+ calls here (and possibly above) should be abstracted
+ out into their own functions? Andrew suggests using
+ a generic local_address_string instead to print out
+ the addresses; that makes sense to me, too. */
+
+ if (TARGET_ADDR_BIT == 32)
+ {
+ printf_filtered ("\t%#10lx %#10lx %#10x %#10x %7s\n",
+ (unsigned long) addr, /* FIXME: pr_addr */
+ (unsigned long) endaddr,
+ (int) size,
+ (unsigned int) offset,
+ filename[0] ? filename : "");
+ }
+ else
+ {
+ printf_filtered (" %#18lx %#18lx %#10x %#10x %7s\n",
+ (unsigned long) addr, /* FIXME: pr_addr */
+ (unsigned long) endaddr,
+ (int) size,
+ (unsigned int) offset,
+ filename[0] ? filename : "");
+ }
+ }
+
+ fclose (procfile);
+ }
+ else
+ warning ("unable to open /proc file '%s'", fname1);
+ }
+ if (status_f || all)
+ {
+ sprintf (fname1, "/proc/%lld/status", pid);
+ if ((procfile = fopen (fname1, "r")) > 0)
+ {
+ while (fgets (buffer, sizeof (buffer), procfile) != NULL)
+ puts_filtered (buffer);
+ fclose (procfile);
+ }
+ else
+ warning ("unable to open /proc file '%s'", fname1);
+ }
+ if (stat_f || all)
+ {
+ sprintf (fname1, "/proc/%lld/stat", pid);
+ if ((procfile = fopen (fname1, "r")) > 0)
+ {
+ int itmp;
+ char ctmp;
+
+ if (fscanf (procfile, "%d ", &itmp) > 0)
+ printf_filtered ("Process: %d\n", itmp);
+ if (fscanf (procfile, "%s ", &buffer[0]) > 0)
+ printf_filtered ("Exec file: %s\n", buffer);
+ if (fscanf (procfile, "%c ", &ctmp) > 0)
+ printf_filtered ("State: %c\n", ctmp);
+ if (fscanf (procfile, "%d ", &itmp) > 0)
+ printf_filtered ("Parent process: %d\n", itmp);
+ if (fscanf (procfile, "%d ", &itmp) > 0)
+ printf_filtered ("Process group: %d\n", itmp);
+ if (fscanf (procfile, "%d ", &itmp) > 0)
+ printf_filtered ("Session id: %d\n", itmp);
+ if (fscanf (procfile, "%d ", &itmp) > 0)
+ printf_filtered ("TTY: %d\n", itmp);
+ if (fscanf (procfile, "%d ", &itmp) > 0)
+ printf_filtered ("TTY owner process group: %d\n", itmp);
+ if (fscanf (procfile, "%u ", &itmp) > 0)
+ printf_filtered ("Flags: 0x%x\n", itmp);
+ if (fscanf (procfile, "%u ", &itmp) > 0)
+ printf_filtered ("Minor faults (no memory page): %u\n",
+ (unsigned int) itmp);
+ if (fscanf (procfile, "%u ", &itmp) > 0)
+ printf_filtered ("Minor faults, children: %u\n",
+ (unsigned int) itmp);
+ if (fscanf (procfile, "%u ", &itmp) > 0)
+ printf_filtered ("Major faults (memory page faults): %u\n",
+ (unsigned int) itmp);
+ if (fscanf (procfile, "%u ", &itmp) > 0)
+ printf_filtered ("Major faults, children: %u\n",
+ (unsigned int) itmp);
+ if (fscanf (procfile, "%d ", &itmp) > 0)
+ printf_filtered ("utime: %d\n", itmp);
+ if (fscanf (procfile, "%d ", &itmp) > 0)
+ printf_filtered ("stime: %d\n", itmp);
+ if (fscanf (procfile, "%d ", &itmp) > 0)
+ printf_filtered ("utime, children: %d\n", itmp);
+ if (fscanf (procfile, "%d ", &itmp) > 0)
+ printf_filtered ("stime, children: %d\n", itmp);
+ if (fscanf (procfile, "%d ", &itmp) > 0)
+ printf_filtered ("jiffies remaining in current time slice: %d\n",
+ itmp);
+ if (fscanf (procfile, "%d ", &itmp) > 0)
+ printf_filtered ("'nice' value: %d\n", itmp);
+ if (fscanf (procfile, "%u ", &itmp) > 0)
+ printf_filtered ("jiffies until next timeout: %u\n",
+ (unsigned int) itmp);
+ if (fscanf (procfile, "%u ", &itmp) > 0)
+ printf_filtered ("jiffies until next SIGALRM: %u\n",
+ (unsigned int) itmp);
+ if (fscanf (procfile, "%d ", &itmp) > 0)
+ printf_filtered ("start time (jiffies since system boot): %d\n",
+ itmp);
+ if (fscanf (procfile, "%u ", &itmp) > 0)
+ printf_filtered ("Virtual memory size: %u\n",
+ (unsigned int) itmp);
+ if (fscanf (procfile, "%u ", &itmp) > 0)
+ printf_filtered ("Resident set size: %u\n", (unsigned int) itmp);
+ if (fscanf (procfile, "%u ", &itmp) > 0)
+ printf_filtered ("rlim: %u\n", (unsigned int) itmp);
+ if (fscanf (procfile, "%u ", &itmp) > 0)
+ printf_filtered ("Start of text: 0x%x\n", itmp);
+ if (fscanf (procfile, "%u ", &itmp) > 0)
+ printf_filtered ("End of text: 0x%x\n", itmp);
+ if (fscanf (procfile, "%u ", &itmp) > 0)
+ printf_filtered ("Start of stack: 0x%x\n", itmp);
+#if 0 /* Don't know how architecture-dependent the rest is...
+ Anyway the signal bitmap info is available from "status". */
+ if (fscanf (procfile, "%u ", &itmp) > 0) /* FIXME arch? */
+ printf_filtered ("Kernel stack pointer: 0x%x\n", itmp);
+ if (fscanf (procfile, "%u ", &itmp) > 0) /* FIXME arch? */
+ printf_filtered ("Kernel instr pointer: 0x%x\n", itmp);
+ if (fscanf (procfile, "%d ", &itmp) > 0)
+ printf_filtered ("Pending signals bitmap: 0x%x\n", itmp);
+ if (fscanf (procfile, "%d ", &itmp) > 0)
+ printf_filtered ("Blocked signals bitmap: 0x%x\n", itmp);
+ if (fscanf (procfile, "%d ", &itmp) > 0)
+ printf_filtered ("Ignored signals bitmap: 0x%x\n", itmp);
+ if (fscanf (procfile, "%d ", &itmp) > 0)
+ printf_filtered ("Catched signals bitmap: 0x%x\n", itmp);
+ if (fscanf (procfile, "%u ", &itmp) > 0) /* FIXME arch? */
+ printf_filtered ("wchan (system call): 0x%x\n", itmp);
+#endif
+ fclose (procfile);
+ }
+ else
+ warning ("unable to open /proc file '%s'", fname1);
+ }
+}
+
+int
+linux_proc_xfer_memory (CORE_ADDR addr, char *myaddr, int len, int write,
+ struct mem_attrib *attrib, struct target_ops *target)
+{
+ int fd, ret;
+ char filename[64];
+
+ if (write)
+ return 0;
+
+ /* Don't bother for one word. */
+ if (len < 3 * sizeof (long))
+ return 0;
+
+ /* We could keep this file open and cache it - possibly one per
+ thread. That requires some juggling, but is even faster. */
+ sprintf (filename, "/proc/%d/mem", PIDGET (inferior_ptid));
+ fd = open (filename, O_RDONLY | O_LARGEFILE);
+ if (fd == -1)
+ return 0;
+
+ /* If pread64 is available, use it. It's faster if the kernel
+ supports it (only one syscall), and it's 64-bit safe even on
+ 32-bit platforms (for instance, SPARC debugging a SPARC64
+ application). */
+#ifdef HAVE_PREAD64
+ if (pread64 (fd, myaddr, len, addr) != len)
+#else
+ if (lseek (fd, addr, SEEK_SET) == -1 || read (fd, myaddr, len) != len)
+#endif
+ ret = 0;
+ else
+ ret = len;
+
+ close (fd);
+ return ret;
+}
+
+/* Parse LINE as a signal set and add its set bits to SIGS. */
+
+static void
+add_line_to_sigset (const char *line, sigset_t *sigs)
+{
+ int len = strlen (line) - 1;
+ const char *p;
+ int signum;
+
+ if (line[len] != '\n')
+ error ("Could not parse signal set: %s", line);
+
+ p = line;
+ signum = len * 4;
+ while (len-- > 0)
+ {
+ int digit;
+
+ if (*p >= '0' && *p <= '9')
+ digit = *p - '0';
+ else if (*p >= 'a' && *p <= 'f')
+ digit = *p - 'a' + 10;
+ else
+ error ("Could not parse signal set: %s", line);
+
+ signum -= 4;
+
+ if (digit & 1)
+ sigaddset (sigs, signum + 1);
+ if (digit & 2)
+ sigaddset (sigs, signum + 2);
+ if (digit & 4)
+ sigaddset (sigs, signum + 3);
+ if (digit & 8)
+ sigaddset (sigs, signum + 4);
+
+ p++;
+ }
+}
+
+/* Find process PID's pending signals from /proc/pid/status and set
+ SIGS to match. */
+
+void
+linux_proc_pending_signals (int pid, sigset_t *pending, sigset_t *blocked, sigset_t *ignored)
+{
+ FILE *procfile;
+ char buffer[MAXPATHLEN], fname[MAXPATHLEN];
+ int signum;
+
+ sigemptyset (pending);
+ sigemptyset (blocked);
+ sigemptyset (ignored);
+ sprintf (fname, "/proc/%d/status", pid);
+ procfile = fopen (fname, "r");
+ if (procfile == NULL)
+ error ("Could not open %s", fname);
+
+ while (fgets (buffer, MAXPATHLEN, procfile) != NULL)
+ {
+ /* Normal queued signals are on the SigPnd line in the status
+ file. However, 2.6 kernels also have a "shared" pending
+ queue for delivering signals to a thread group, so check for
+ a ShdPnd line also.
+
+ Unfortunately some Red Hat kernels include the shared pending
+ queue but not the ShdPnd status field. */
+
+ if (strncmp (buffer, "SigPnd:\t", 8) == 0)
+ add_line_to_sigset (buffer + 8, pending);
+ else if (strncmp (buffer, "ShdPnd:\t", 8) == 0)
+ add_line_to_sigset (buffer + 8, pending);
+ else if (strncmp (buffer, "SigBlk:\t", 8) == 0)
+ add_line_to_sigset (buffer + 8, blocked);
+ else if (strncmp (buffer, "SigIgn:\t", 8) == 0)
+ add_line_to_sigset (buffer + 8, ignored);
+ }
+
+ fclose (procfile);
+}
+
void
_initialize_linux_nat (void)
{
struct sigaction action;
-
extern void thread_db_init (struct target_ops *);
+ extern void inftarg_set_find_memory_regions ();
+ extern void inftarg_set_make_corefile_notes ();
+
+ inftarg_set_find_memory_regions (linux_nat_find_memory_regions);
+ inftarg_set_make_corefile_notes (linux_nat_make_corefile_notes);
+
+ add_info ("proc", linux_nat_info_proc_cmd,
+ "Show /proc process information about any running process.\n\
+Specify any process id, or use the program being debugged by default.\n\
+Specify any of the following keywords for detailed info:\n\
+ mappings -- list of mapped memory regions.\n\
+ stat -- list a bunch of random process info.\n\
+ status -- list a different bunch of random process info.\n\
+ all -- list all available /proc info.");
init_linux_nat_ops ();
add_target (&linux_nat_ops);
+++ /dev/null
-/* GNU/Linux specific methods for using the /proc file system.
-
- Copyright 2001, 2002 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"
-#include "inferior.h"
-#include <sys/param.h> /* for MAXPATHLEN */
-#include <sys/procfs.h> /* for elf_gregset etc. */
-#include "gdb_stat.h" /* for struct stat */
-#include <ctype.h> /* for isdigit */
-#include <unistd.h> /* for open, pread64 */
-#include <fcntl.h> /* for O_RDONLY */
-#include "regcache.h" /* for registers_changed */
-#include "gregset.h" /* for gregset */
-#include "gdbcore.h" /* for get_exec_file */
-#include "gdbthread.h" /* for struct thread_info etc. */
-#include "elf-bfd.h" /* for elfcore_write_* */
-#include "cli/cli-decode.h" /* for add_info */
-#include "gdb_string.h"
-
-#include <signal.h>
-
-#include "linux-nat.h"
-
-#ifndef O_LARGEFILE
-#define O_LARGEFILE 0
-#endif
-
-/* Function: child_pid_to_exec_file
- *
- * Accepts an integer pid
- * Returns a string representing a file that can be opened
- * to get the symbols for the child process.
- */
-
-char *
-child_pid_to_exec_file (int pid)
-{
- char *name1, *name2;
-
- name1 = xmalloc (MAXPATHLEN);
- name2 = xmalloc (MAXPATHLEN);
- make_cleanup (xfree, name1);
- make_cleanup (xfree, name2);
- memset (name2, 0, MAXPATHLEN);
-
- sprintf (name1, "/proc/%d/exe", pid);
- if (readlink (name1, name2, MAXPATHLEN) > 0)
- return name2;
- else
- return name1;
-}
-
-/* Function: read_mappings
- *
- * Service function for corefiles and info proc.
- */
-
-static int
-read_mapping (FILE *mapfile,
- long long *addr,
- long long *endaddr,
- char *permissions,
- long long *offset,
- char *device, long long *inode, char *filename)
-{
- int ret = fscanf (mapfile, "%llx-%llx %s %llx %s %llx",
- addr, endaddr, permissions, offset, device, inode);
-
- if (ret > 0 && ret != EOF && *inode != 0)
- {
- /* Eat everything up to EOL for the filename. This will prevent
- weird filenames (such as one with embedded whitespace) from
- confusing this code. It also makes this code more robust
- in respect to annotations the kernel may add after the
- filename.
-
- Note the filename is used for informational purposes only. */
- ret += fscanf (mapfile, "%[^\n]\n", filename);
- }
- else
- {
- filename[0] = '\0'; /* no filename */
- fscanf (mapfile, "\n");
- }
- return (ret != 0 && ret != EOF);
-}
-
-/* Function: linux_find_memory_regions
- *
- * Fills the "to_find_memory_regions" target vector.
- * Lists the memory regions in the inferior for a corefile.
- */
-
-static int
-linux_find_memory_regions (int (*func) (CORE_ADDR,
- unsigned long,
- int, int, int, void *), void *obfd)
-{
- long long pid = PIDGET (inferior_ptid);
- char mapsfilename[MAXPATHLEN];
- FILE *mapsfile;
- long long addr, endaddr, size, offset, inode;
- char permissions[8], device[8], filename[MAXPATHLEN];
- int read, write, exec;
- int ret;
-
- /* Compose the filename for the /proc memory map, and open it. */
- sprintf (mapsfilename, "/proc/%lld/maps", pid);
- if ((mapsfile = fopen (mapsfilename, "r")) == NULL)
- error ("Could not open %s\n", mapsfilename);
-
- if (info_verbose)
- fprintf_filtered (gdb_stdout,
- "Reading memory regions from %s\n", mapsfilename);
-
- /* Now iterate until end-of-file. */
- while (read_mapping (mapsfile, &addr, &endaddr, &permissions[0],
- &offset, &device[0], &inode, &filename[0]))
- {
- size = endaddr - addr;
-
- /* Get the segment's permissions. */
- read = (strchr (permissions, 'r') != 0);
- write = (strchr (permissions, 'w') != 0);
- exec = (strchr (permissions, 'x') != 0);
-
- if (info_verbose)
- {
- fprintf_filtered (gdb_stdout,
- "Save segment, %lld bytes at 0x%s (%c%c%c)",
- size, paddr_nz (addr),
- read ? 'r' : ' ',
- write ? 'w' : ' ', exec ? 'x' : ' ');
- if (filename && filename[0])
- fprintf_filtered (gdb_stdout, " for %s", filename);
- fprintf_filtered (gdb_stdout, "\n");
- }
-
- /* Invoke the callback function to create the corefile segment. */
- func (addr, size, read, write, exec, obfd);
- }
- fclose (mapsfile);
- return 0;
-}
-
-/* Function: linux_do_thread_registers
- *
- * Records the thread's register state for the corefile note section.
- */
-
-static char *
-linux_do_thread_registers (bfd *obfd, ptid_t ptid,
- char *note_data, int *note_size)
-{
- gdb_gregset_t gregs;
- gdb_fpregset_t fpregs;
-#ifdef FILL_FPXREGSET
- gdb_fpxregset_t fpxregs;
-#endif
- unsigned long lwp = ptid_get_lwp (ptid);
-
- fill_gregset (&gregs, -1);
- note_data = (char *) elfcore_write_prstatus (obfd,
- note_data,
- note_size,
- lwp,
- stop_signal, &gregs);
-
- fill_fpregset (&fpregs, -1);
- note_data = (char *) elfcore_write_prfpreg (obfd,
- note_data,
- note_size,
- &fpregs, sizeof (fpregs));
-#ifdef FILL_FPXREGSET
- fill_fpxregset (&fpxregs, -1);
- note_data = (char *) elfcore_write_prxfpreg (obfd,
- note_data,
- note_size,
- &fpxregs, sizeof (fpxregs));
-#endif
- return note_data;
-}
-
-struct linux_corefile_thread_data
-{
- bfd *obfd;
- char *note_data;
- int *note_size;
- int num_notes;
-};
-
-/* Function: linux_corefile_thread_callback
- *
- * Called by gdbthread.c once per thread.
- * Records the thread's register state for the corefile note section.
- */
-
-static int
-linux_corefile_thread_callback (struct lwp_info *ti, void *data)
-{
- struct linux_corefile_thread_data *args = data;
- ptid_t saved_ptid = inferior_ptid;
-
- inferior_ptid = ti->ptid;
- registers_changed ();
- target_fetch_registers (-1); /* FIXME should not be necessary;
- fill_gregset should do it automatically. */
- args->note_data = linux_do_thread_registers (args->obfd,
- ti->ptid,
- args->note_data,
- args->note_size);
- args->num_notes++;
- inferior_ptid = saved_ptid;
- registers_changed ();
- target_fetch_registers (-1); /* FIXME should not be necessary;
- fill_gregset should do it automatically. */
- return 0;
-}
-
-/* Function: linux_do_registers
- *
- * Records the register state for the corefile note section.
- */
-
-static char *
-linux_do_registers (bfd *obfd, ptid_t ptid,
- char *note_data, int *note_size)
-{
- registers_changed ();
- target_fetch_registers (-1); /* FIXME should not be necessary;
- fill_gregset should do it automatically. */
- return linux_do_thread_registers (obfd,
- ptid_build (ptid_get_pid (inferior_ptid),
- ptid_get_pid (inferior_ptid),
- 0),
- note_data, note_size);
- return note_data;
-}
-
-/* Function: linux_make_note_section
- *
- * Fills the "to_make_corefile_note" target vector.
- * Builds the note section for a corefile, and returns it
- * in a malloc buffer.
- */
-
-static char *
-linux_make_note_section (bfd *obfd, int *note_size)
-{
- struct linux_corefile_thread_data thread_args;
- struct cleanup *old_chain;
- char fname[16] = { '\0' };
- char psargs[80] = { '\0' };
- char *note_data = NULL;
- ptid_t current_ptid = inferior_ptid;
- char *auxv;
- int auxv_len;
-
- if (get_exec_file (0))
- {
- strncpy (fname, strrchr (get_exec_file (0), '/') + 1, sizeof (fname));
- strncpy (psargs, get_exec_file (0), sizeof (psargs));
- if (get_inferior_args ())
- {
- strncat (psargs, " ", sizeof (psargs) - strlen (psargs));
- strncat (psargs, get_inferior_args (),
- sizeof (psargs) - strlen (psargs));
- }
- note_data = (char *) elfcore_write_prpsinfo (obfd,
- note_data,
- note_size, fname, psargs);
- }
-
- /* Dump information for threads. */
- thread_args.obfd = obfd;
- thread_args.note_data = note_data;
- thread_args.note_size = note_size;
- thread_args.num_notes = 0;
- iterate_over_lwps (linux_corefile_thread_callback, &thread_args);
- if (thread_args.num_notes == 0)
- {
- /* iterate_over_threads didn't come up with any threads;
- just use inferior_ptid. */
- note_data = linux_do_registers (obfd, inferior_ptid,
- note_data, note_size);
- }
- else
- {
- note_data = thread_args.note_data;
- }
-
- auxv_len = target_auxv_read (¤t_target, &auxv);
- if (auxv_len > 0)
- {
- note_data = elfcore_write_note (obfd, note_data, note_size,
- "CORE", NT_AUXV, auxv, auxv_len);
- xfree (auxv);
- }
-
- make_cleanup (xfree, note_data);
- return note_data;
-}
-
-/*
- * Function: linux_info_proc_cmd
- *
- * Implement the "info proc" command.
- */
-
-static void
-linux_info_proc_cmd (char *args, int from_tty)
-{
- long long pid = PIDGET (inferior_ptid);
- FILE *procfile;
- char **argv = NULL;
- char buffer[MAXPATHLEN];
- char fname1[MAXPATHLEN], fname2[MAXPATHLEN];
- int cmdline_f = 1;
- int cwd_f = 1;
- int exe_f = 1;
- int mappings_f = 0;
- int environ_f = 0;
- int status_f = 0;
- int stat_f = 0;
- int all = 0;
- struct stat dummy;
-
- if (args)
- {
- /* Break up 'args' into an argv array. */
- if ((argv = buildargv (args)) == NULL)
- nomem (0);
- else
- make_cleanup_freeargv (argv);
- }
- while (argv != NULL && *argv != NULL)
- {
- if (isdigit (argv[0][0]))
- {
- pid = strtoul (argv[0], NULL, 10);
- }
- else if (strncmp (argv[0], "mappings", strlen (argv[0])) == 0)
- {
- mappings_f = 1;
- }
- else if (strcmp (argv[0], "status") == 0)
- {
- status_f = 1;
- }
- else if (strcmp (argv[0], "stat") == 0)
- {
- stat_f = 1;
- }
- else if (strcmp (argv[0], "cmd") == 0)
- {
- cmdline_f = 1;
- }
- else if (strncmp (argv[0], "exe", strlen (argv[0])) == 0)
- {
- exe_f = 1;
- }
- else if (strcmp (argv[0], "cwd") == 0)
- {
- cwd_f = 1;
- }
- else if (strncmp (argv[0], "all", strlen (argv[0])) == 0)
- {
- all = 1;
- }
- else
- {
- /* [...] (future options here) */
- }
- argv++;
- }
- if (pid == 0)
- error ("No current process: you must name one.");
-
- sprintf (fname1, "/proc/%lld", pid);
- if (stat (fname1, &dummy) != 0)
- error ("No /proc directory: '%s'", fname1);
-
- printf_filtered ("process %lld\n", pid);
- if (cmdline_f || all)
- {
- sprintf (fname1, "/proc/%lld/cmdline", pid);
- if ((procfile = fopen (fname1, "r")) > 0)
- {
- fgets (buffer, sizeof (buffer), procfile);
- printf_filtered ("cmdline = '%s'\n", buffer);
- fclose (procfile);
- }
- else
- warning ("unable to open /proc file '%s'", fname1);
- }
- if (cwd_f || all)
- {
- sprintf (fname1, "/proc/%lld/cwd", pid);
- memset (fname2, 0, sizeof (fname2));
- if (readlink (fname1, fname2, sizeof (fname2)) > 0)
- printf_filtered ("cwd = '%s'\n", fname2);
- else
- warning ("unable to read link '%s'", fname1);
- }
- if (exe_f || all)
- {
- sprintf (fname1, "/proc/%lld/exe", pid);
- memset (fname2, 0, sizeof (fname2));
- if (readlink (fname1, fname2, sizeof (fname2)) > 0)
- printf_filtered ("exe = '%s'\n", fname2);
- else
- warning ("unable to read link '%s'", fname1);
- }
- if (mappings_f || all)
- {
- sprintf (fname1, "/proc/%lld/maps", pid);
- if ((procfile = fopen (fname1, "r")) > 0)
- {
- long long addr, endaddr, size, offset, inode;
- char permissions[8], device[8], filename[MAXPATHLEN];
-
- printf_filtered ("Mapped address spaces:\n\n");
- if (TARGET_ADDR_BIT == 32)
- {
- printf_filtered ("\t%10s %10s %10s %10s %7s\n",
- "Start Addr",
- " End Addr",
- " Size", " Offset", "objfile");
- }
- else
- {
- printf_filtered (" %18s %18s %10s %10s %7s\n",
- "Start Addr",
- " End Addr",
- " Size", " Offset", "objfile");
- }
-
- while (read_mapping (procfile, &addr, &endaddr, &permissions[0],
- &offset, &device[0], &inode, &filename[0]))
- {
- size = endaddr - addr;
-
- /* FIXME: carlton/2003-08-27: Maybe the printf_filtered
- calls here (and possibly above) should be abstracted
- out into their own functions? Andrew suggests using
- a generic local_address_string instead to print out
- the addresses; that makes sense to me, too. */
-
- if (TARGET_ADDR_BIT == 32)
- {
- printf_filtered ("\t%#10lx %#10lx %#10x %#10x %7s\n",
- (unsigned long) addr, /* FIXME: pr_addr */
- (unsigned long) endaddr,
- (int) size,
- (unsigned int) offset,
- filename[0] ? filename : "");
- }
- else
- {
- printf_filtered (" %#18lx %#18lx %#10x %#10x %7s\n",
- (unsigned long) addr, /* FIXME: pr_addr */
- (unsigned long) endaddr,
- (int) size,
- (unsigned int) offset,
- filename[0] ? filename : "");
- }
- }
-
- fclose (procfile);
- }
- else
- warning ("unable to open /proc file '%s'", fname1);
- }
- if (status_f || all)
- {
- sprintf (fname1, "/proc/%lld/status", pid);
- if ((procfile = fopen (fname1, "r")) > 0)
- {
- while (fgets (buffer, sizeof (buffer), procfile) != NULL)
- puts_filtered (buffer);
- fclose (procfile);
- }
- else
- warning ("unable to open /proc file '%s'", fname1);
- }
- if (stat_f || all)
- {
- sprintf (fname1, "/proc/%lld/stat", pid);
- if ((procfile = fopen (fname1, "r")) > 0)
- {
- int itmp;
- char ctmp;
-
- if (fscanf (procfile, "%d ", &itmp) > 0)
- printf_filtered ("Process: %d\n", itmp);
- if (fscanf (procfile, "%s ", &buffer[0]) > 0)
- printf_filtered ("Exec file: %s\n", buffer);
- if (fscanf (procfile, "%c ", &ctmp) > 0)
- printf_filtered ("State: %c\n", ctmp);
- if (fscanf (procfile, "%d ", &itmp) > 0)
- printf_filtered ("Parent process: %d\n", itmp);
- if (fscanf (procfile, "%d ", &itmp) > 0)
- printf_filtered ("Process group: %d\n", itmp);
- if (fscanf (procfile, "%d ", &itmp) > 0)
- printf_filtered ("Session id: %d\n", itmp);
- if (fscanf (procfile, "%d ", &itmp) > 0)
- printf_filtered ("TTY: %d\n", itmp);
- if (fscanf (procfile, "%d ", &itmp) > 0)
- printf_filtered ("TTY owner process group: %d\n", itmp);
- if (fscanf (procfile, "%u ", &itmp) > 0)
- printf_filtered ("Flags: 0x%x\n", itmp);
- if (fscanf (procfile, "%u ", &itmp) > 0)
- printf_filtered ("Minor faults (no memory page): %u\n",
- (unsigned int) itmp);
- if (fscanf (procfile, "%u ", &itmp) > 0)
- printf_filtered ("Minor faults, children: %u\n",
- (unsigned int) itmp);
- if (fscanf (procfile, "%u ", &itmp) > 0)
- printf_filtered ("Major faults (memory page faults): %u\n",
- (unsigned int) itmp);
- if (fscanf (procfile, "%u ", &itmp) > 0)
- printf_filtered ("Major faults, children: %u\n",
- (unsigned int) itmp);
- if (fscanf (procfile, "%d ", &itmp) > 0)
- printf_filtered ("utime: %d\n", itmp);
- if (fscanf (procfile, "%d ", &itmp) > 0)
- printf_filtered ("stime: %d\n", itmp);
- if (fscanf (procfile, "%d ", &itmp) > 0)
- printf_filtered ("utime, children: %d\n", itmp);
- if (fscanf (procfile, "%d ", &itmp) > 0)
- printf_filtered ("stime, children: %d\n", itmp);
- if (fscanf (procfile, "%d ", &itmp) > 0)
- printf_filtered ("jiffies remaining in current time slice: %d\n",
- itmp);
- if (fscanf (procfile, "%d ", &itmp) > 0)
- printf_filtered ("'nice' value: %d\n", itmp);
- if (fscanf (procfile, "%u ", &itmp) > 0)
- printf_filtered ("jiffies until next timeout: %u\n",
- (unsigned int) itmp);
- if (fscanf (procfile, "%u ", &itmp) > 0)
- printf_filtered ("jiffies until next SIGALRM: %u\n",
- (unsigned int) itmp);
- if (fscanf (procfile, "%d ", &itmp) > 0)
- printf_filtered ("start time (jiffies since system boot): %d\n",
- itmp);
- if (fscanf (procfile, "%u ", &itmp) > 0)
- printf_filtered ("Virtual memory size: %u\n",
- (unsigned int) itmp);
- if (fscanf (procfile, "%u ", &itmp) > 0)
- printf_filtered ("Resident set size: %u\n", (unsigned int) itmp);
- if (fscanf (procfile, "%u ", &itmp) > 0)
- printf_filtered ("rlim: %u\n", (unsigned int) itmp);
- if (fscanf (procfile, "%u ", &itmp) > 0)
- printf_filtered ("Start of text: 0x%x\n", itmp);
- if (fscanf (procfile, "%u ", &itmp) > 0)
- printf_filtered ("End of text: 0x%x\n", itmp);
- if (fscanf (procfile, "%u ", &itmp) > 0)
- printf_filtered ("Start of stack: 0x%x\n", itmp);
-#if 0 /* Don't know how architecture-dependent the rest is...
- Anyway the signal bitmap info is available from "status". */
- if (fscanf (procfile, "%u ", &itmp) > 0) /* FIXME arch? */
- printf_filtered ("Kernel stack pointer: 0x%x\n", itmp);
- if (fscanf (procfile, "%u ", &itmp) > 0) /* FIXME arch? */
- printf_filtered ("Kernel instr pointer: 0x%x\n", itmp);
- if (fscanf (procfile, "%d ", &itmp) > 0)
- printf_filtered ("Pending signals bitmap: 0x%x\n", itmp);
- if (fscanf (procfile, "%d ", &itmp) > 0)
- printf_filtered ("Blocked signals bitmap: 0x%x\n", itmp);
- if (fscanf (procfile, "%d ", &itmp) > 0)
- printf_filtered ("Ignored signals bitmap: 0x%x\n", itmp);
- if (fscanf (procfile, "%d ", &itmp) > 0)
- printf_filtered ("Catched signals bitmap: 0x%x\n", itmp);
- if (fscanf (procfile, "%u ", &itmp) > 0) /* FIXME arch? */
- printf_filtered ("wchan (system call): 0x%x\n", itmp);
-#endif
- fclose (procfile);
- }
- else
- warning ("unable to open /proc file '%s'", fname1);
- }
-}
-
-void
-_initialize_linux_proc (void)
-{
- extern void inftarg_set_find_memory_regions ();
- extern void inftarg_set_make_corefile_notes ();
-
- inftarg_set_find_memory_regions (linux_find_memory_regions);
- inftarg_set_make_corefile_notes (linux_make_note_section);
-
- add_info ("proc", linux_info_proc_cmd,
- "Show /proc process information about any running process.\n\
-Specify any process id, or use the program being debugged by default.\n\
-Specify any of the following keywords for detailed info:\n\
- mappings -- list of mapped memory regions.\n\
- stat -- list a bunch of random process info.\n\
- status -- list a different bunch of random process info.\n\
- all -- list all available /proc info.");
-}
-
-int
-linux_proc_xfer_memory (CORE_ADDR addr, char *myaddr, int len, int write,
- struct mem_attrib *attrib, struct target_ops *target)
-{
- int fd, ret;
- char filename[64];
-
- if (write)
- return 0;
-
- /* Don't bother for one word. */
- if (len < 3 * sizeof (long))
- return 0;
-
- /* We could keep this file open and cache it - possibly one
- per thread. That requires some juggling, but is even faster. */
- sprintf (filename, "/proc/%d/mem", PIDGET (inferior_ptid));
- fd = open (filename, O_RDONLY | O_LARGEFILE);
- if (fd == -1)
- return 0;
-
- /* If pread64 is available, use it. It's faster if the kernel
- supports it (only one syscall), and it's 64-bit safe even
- on 32-bit platforms (for instance, SPARC debugging a SPARC64
- application). */
-#ifdef HAVE_PREAD64
- if (pread64 (fd, myaddr, len, addr) != len)
-#else
- if (lseek (fd, addr, SEEK_SET) == -1 || read (fd, myaddr, len) != len)
-#endif
- ret = 0;
- else
- ret = len;
-
- close (fd);
- return ret;
-}
-
-/* Parse LINE as a signal set and add its set bits to SIGS. */
-
-static void
-linux_proc_add_line_to_sigset (const char *line, sigset_t *sigs)
-{
- int len = strlen (line) - 1;
- const char *p;
- int signum;
-
- if (line[len] != '\n')
- error ("Could not parse signal set: %s", line);
-
- p = line;
- signum = len * 4;
- while (len-- > 0)
- {
- int digit;
-
- if (*p >= '0' && *p <= '9')
- digit = *p - '0';
- else if (*p >= 'a' && *p <= 'f')
- digit = *p - 'a' + 10;
- else
- error ("Could not parse signal set: %s", line);
-
- signum -= 4;
-
- if (digit & 1)
- sigaddset (sigs, signum + 1);
- if (digit & 2)
- sigaddset (sigs, signum + 2);
- if (digit & 4)
- sigaddset (sigs, signum + 3);
- if (digit & 8)
- sigaddset (sigs, signum + 4);
-
- p++;
- }
-}
-
-/* Find process PID's pending signals from /proc/pid/status and set SIGS
- to match. */
-
-void
-linux_proc_pending_signals (int pid, sigset_t *pending, sigset_t *blocked, sigset_t *ignored)
-{
- FILE *procfile;
- char buffer[MAXPATHLEN], fname[MAXPATHLEN];
- int signum;
-
- sigemptyset (pending);
- sigemptyset (blocked);
- sigemptyset (ignored);
- sprintf (fname, "/proc/%d/status", pid);
- procfile = fopen (fname, "r");
- if (procfile == NULL)
- error ("Could not open %s", fname);
-
- while (fgets (buffer, MAXPATHLEN, procfile) != NULL)
- {
- /* Normal queued signals are on the SigPnd line in the status
- file. However, 2.6 kernels also have a "shared" pending queue
- for delivering signals to a thread group, so check for a ShdPnd
- line also.
-
- Unfortunately some Red Hat kernels include the shared pending queue
- but not the ShdPnd status field. */
-
- if (strncmp (buffer, "SigPnd:\t", 8) == 0)
- linux_proc_add_line_to_sigset (buffer + 8, pending);
- else if (strncmp (buffer, "ShdPnd:\t", 8) == 0)
- linux_proc_add_line_to_sigset (buffer + 8, pending);
- else if (strncmp (buffer, "SigBlk:\t", 8) == 0)
- linux_proc_add_line_to_sigset (buffer + 8, blocked);
- else if (strncmp (buffer, "SigIgn:\t", 8) == 0)
- linux_proc_add_line_to_sigset (buffer + 8, ignored);
- }
-
- fclose (procfile);
-}
projects / external / binutils.git / commitdiff