diff options
author | Michael Snyder <msnyder@vmware.com> | 2011-01-05 22:22:53 +0000 |
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committer | Michael Snyder <msnyder@vmware.com> | 2011-01-05 22:22:53 +0000 |
commit | 3e43a32aaa2d78fca10dea6746b820176f39bcc8 (patch) | |
tree | 32cf854a33e1036a2e60037dabd2aaf4b4e81e03 /gdb/linux-nat.c | |
parent | 9689e3a3a7895308b7b2eac3fa6e4d560cf4b8c7 (diff) | |
download | gdb-3e43a32aaa2d78fca10dea6746b820176f39bcc8.zip gdb-3e43a32aaa2d78fca10dea6746b820176f39bcc8.tar.gz gdb-3e43a32aaa2d78fca10dea6746b820176f39bcc8.tar.bz2 |
2011-01-05 Michael Snyder <msnyder@vmware.com>
* addrmap.c: Shorten lines of >= 80 columns.
* arch-utils.c: Ditto.
* arch-utils.h: Ditto.
* ax-gdb.c: Ditto.
* ax-general.c: Ditto.
* bcache.c: Ditto.
* blockframe.c: Ditto.
* breakpoint.c: Ditto.
* buildsym.c: Ditto.
* c-lang.c: Ditto.
* c-typeprint.c: Ditto.
* charset.c: Ditto.
* coffread.c: Ditto.
* command.h: Ditto.
* corelow.c: Ditto.
* cp-abi.c: Ditto.
* cp-namespace.c: Ditto.
* cp-support.c: Ditto.
* dbug-rom.c: Ditto.
* dbxread.c: Ditto.
* defs.h: Ditto.
* dfp.c: Ditto.
* dfp.h: Ditto.
* dictionary.c: Ditto.
* disasm.c: Ditto.
* doublest.c: Ditto.
* dwarf2-frame.c: Ditto.
* dwarf2expr.c: Ditto.
* dwarf2loc.c: Ditto.
* dwarf2read.c: Ditto.
* elfread.c: Ditto.
* eval.c: Ditto.
* event-loop.c: Ditto.
* event-loop.h: Ditto.
* exceptions.h: Ditto.
* exec.c: Ditto.
* expprint.c: Ditto.
* expression.h: Ditto.
* f-lang.c: Ditto.
* f-valprint.c: Ditto.
* findcmd.c: Ditto.
* frame-base.c: Ditto.
* frame-unwind.c: Ditto.
* frame-unwind.h: Ditto.
* frame.c: Ditto.
* frame.h: Ditto.
* gcore.c: Ditto.
* gdb-stabs.h: Ditto.
* gdb_assert.h: Ditto.
* gdb_dirent.h: Ditto.
* gdb_obstack.h: Ditto.
* gdbcore.h: Ditto.
* gdbtypes.c: Ditto.
* gdbtypes.h: Ditto.
* inf-ttrace.c: Ditto.
* infcall.c: Ditto.
* infcmd.c: Ditto.
* inflow.c: Ditto.
* infrun.c: Ditto.
* inline-frame.h: Ditto.
* language.c: Ditto.
* language.h: Ditto.
* libunwind-frame.c: Ditto.
* libunwind-frame.h: Ditto.
* linespec.c: Ditto.
* linux-nat.c: Ditto.
* linux-nat.h: Ditto.
* linux-thread-db.c: Ditto.
* machoread.c: Ditto.
* macroexp.c: Ditto.
* macrotab.c: Ditto.
* main.c: Ditto.
* maint.c: Ditto.
* mdebugread.c: Ditto.
* memattr.c: Ditto.
* minsyms.c: Ditto.
* monitor.c: Ditto.
* monitor.h: Ditto.
* objfiles.c: Ditto.
* objfiles.h: Ditto.
* osabi.c: Ditto.
* p-typeprint.c: Ditto.
* p-valprint.c: Ditto.
* parse.c: Ditto.
* printcmd.c: Ditto.
* proc-events.c: Ditto.
* procfs.c: Ditto.
* progspace.c: Ditto.
* progspace.h: Ditto.
* psympriv.h: Ditto.
* psymtab.c: Ditto.
* record.c: Ditto.
* regcache.c: Ditto.
* regcache.h: Ditto.
* remote-fileio.c: Ditto.
* remote.c: Ditto.
* ser-mingw.c: Ditto.
* ser-tcp.c: Ditto.
* ser-unix.c: Ditto.
* serial.c: Ditto.
* serial.h: Ditto.
* solib-frv.c: Ditto.
* solib-irix.c: Ditto.
* solib-osf.c: Ditto.
* solib-pa64.c: Ditto.
* solib-som.c: Ditto.
* solib-sunos.c: Ditto.
* solib-svr4.c: Ditto.
* solib-target.c: Ditto.
* solib.c: Ditto.
* somread.c: Ditto.
* source.c: Ditto.
* stabsread.c: Ditto.
* stabsread.c: Ditto.
* stack.c: Ditto.
* stack.h: Ditto.
* symfile-mem.c: Ditto.
* symfile.c: Ditto.
* symfile.h: Ditto.
* symmisc.c: Ditto.
* symtab.c: Ditto.
* symtab.h: Ditto.
* target-descriptions.c: Ditto.
* target-memory.c: Ditto.
* target.c: Ditto.
* target.h: Ditto.
* terminal.h: Ditto.
* thread.c: Ditto.
* top.c: Ditto.
* tracepoint.c: Ditto.
* tracepoint.h: Ditto.
* ui-file.c: Ditto.
* ui-file.h: Ditto.
* ui-out.h: Ditto.
* user-regs.c: Ditto.
* user-regs.h: Ditto.
* utils.c: Ditto.
* valarith.c: Ditto.
* valops.c: Ditto.
* valprint.c: Ditto.
* valprint.h: Ditto.
* value.c: Ditto.
* varobj.c: Ditto.
* varobj.h: Ditto.
* vec.h: Ditto.
* xcoffread.c: Ditto.
* xcoffsolib.c: Ditto.
* xcoffsolib.h: Ditto.
* xml-syscall.c: Ditto.
* xml-tdesc.c: Ditto.
Diffstat (limited to 'gdb/linux-nat.c')
-rw-r--r-- | gdb/linux-nat.c | 160 |
1 files changed, 95 insertions, 65 deletions
diff --git a/gdb/linux-nat.c b/gdb/linux-nat.c index 146bb8c..e467e9a 100644 --- a/gdb/linux-nat.c +++ b/gdb/linux-nat.c @@ -86,7 +86,8 @@ flag to check for events in cloned processes. If nothing is found, we use sigsuspend to wait for SIGCHLD. When SIGCHLD arrives, it means something happened to a child process -- and SIGCHLD will be delivered both for events in main debugged process and in cloned processes. As soon as we know there's -an event, we get back to calling nonblocking waitpid with and without __WCLONED. +an event, we get back to calling nonblocking waitpid with and without +__WCLONED. Note that SIGCHLD should be blocked between waitpid and sigsuspend calls, so that we don't miss a signal. If SIGCHLD arrives in between, when it's @@ -239,7 +240,8 @@ static void show_debug_linux_nat_async (struct ui_file *file, int from_tty, struct cmd_list_element *c, const char *value) { - fprintf_filtered (file, _("Debugging of GNU/Linux async lwp module is %s.\n"), + fprintf_filtered (file, + _("Debugging of GNU/Linux async lwp module is %s.\n"), value); } @@ -250,23 +252,25 @@ show_disable_randomization (struct ui_file *file, int from_tty, struct cmd_list_element *c, const char *value) { #ifdef HAVE_PERSONALITY - fprintf_filtered (file, _("\ -Disabling randomization of debuggee's virtual address space is %s.\n"), + fprintf_filtered (file, + _("Disabling randomization of debuggee's " + "virtual address space is %s.\n"), value); #else /* !HAVE_PERSONALITY */ - fputs_filtered (_("\ -Disabling randomization of debuggee's virtual address space is unsupported on\n\ -this platform.\n"), file); + fputs_filtered (_("Disabling randomization of debuggee's " + "virtual address space is unsupported on\n" + "this platform.\n"), file); #endif /* !HAVE_PERSONALITY */ } static void -set_disable_randomization (char *args, int from_tty, struct cmd_list_element *c) +set_disable_randomization (char *args, int from_tty, + struct cmd_list_element *c) { #ifndef HAVE_PERSONALITY - error (_("\ -Disabling randomization of debuggee's virtual address space is unsupported on\n\ -this platform.")); + error (_("Disabling randomization of debuggee's " + "virtual address space is unsupported on\n" + "this platform.")); #endif /* !HAVE_PERSONALITY */ } @@ -283,8 +287,8 @@ struct simple_pid_list *stopped_pids; static int linux_supports_tracefork_flag = -1; -/* This variable is a tri-state flag: -1 for unknown, 0 if PTRACE_O_TRACESYSGOOD - can not be used, 1 if it can. */ +/* This variable is a tri-state flag: -1 for unknown, 0 if + PTRACE_O_TRACESYSGOOD can not be used, 1 if it can. */ static int linux_supports_tracesysgood_flag = -1; @@ -346,7 +350,8 @@ async_file_mark (void) } static void linux_nat_async (void (*callback) - (enum inferior_event_type event_type, void *context), + (enum inferior_event_type event_type, + void *context), void *context); static int linux_nat_async_mask (int mask); static int kill_lwp (int lwpid, int signo); @@ -473,7 +478,8 @@ linux_test_for_tracefork (int original_pid) else if (ret != child_pid) error (_("linux_test_for_tracefork: waitpid: unexpected result %d."), ret); if (! WIFSTOPPED (status)) - error (_("linux_test_for_tracefork: waitpid: unexpected status %d."), status); + error (_("linux_test_for_tracefork: waitpid: unexpected status %d."), + status); ret = ptrace (PTRACE_SETOPTIONS, child_pid, 0, PTRACE_O_TRACEFORK); if (ret != 0) @@ -488,10 +494,11 @@ linux_test_for_tracefork (int original_pid) ret = my_waitpid (child_pid, &status, 0); if (ret != child_pid) - warning (_("linux_test_for_tracefork: failed to wait for killed child")); + warning (_("linux_test_for_tracefork: failed " + "to wait for killed child")); else if (!WIFSIGNALED (status)) - warning (_("linux_test_for_tracefork: unexpected wait status 0x%x from " - "killed child"), status); + warning (_("linux_test_for_tracefork: unexpected " + "wait status 0x%x from killed child"), status); restore_child_signals_mask (&prev_mask); return; @@ -521,7 +528,8 @@ linux_test_for_tracefork (int original_pid) my_waitpid (second_pid, &second_status, 0); ret = ptrace (PTRACE_KILL, second_pid, 0, 0); if (ret != 0) - warning (_("linux_test_for_tracefork: failed to kill second child")); + warning (_("linux_test_for_tracefork: " + "failed to kill second child")); my_waitpid (second_pid, &status, 0); } } @@ -678,10 +686,12 @@ linux_child_follow_fork (struct target_ops *ops, int follow_child) the parent stays blocked. If we're telling the parent to run in the foreground, the user will not be able to ctrl-c to get back the terminal, effectively hanging the debug session. */ - fprintf_filtered (gdb_stderr, _("\ -Can not resume the parent process over vfork in the foreground while\n\ -holding the child stopped. Try \"set detach-on-fork\" or \ -\"set schedule-multiple\".\n")); + fprintf_filtered (gdb_stderr, + _("Can not resume the parent process " + "over vfork in the foreground while\n" + "holding the child stopped. " + "Try \"set detach-on-fork\" or " + "\"set schedule-multiple\".\n")); return 1; } @@ -711,7 +721,8 @@ holding the child stopped. Try \"set detach-on-fork\" or \ { target_terminal_ours (); fprintf_filtered (gdb_stdlog, - "Detaching after fork from child process %d.\n", + "Detaching after fork from " + "child process %d.\n", child_pid); } @@ -843,7 +854,8 @@ holding the child stopped. Try \"set detach-on-fork\" or \ if (debug_linux_nat) fprintf_unfiltered (gdb_stdlog, - "LCFF: no VFORK_DONE support, sleeping a bit\n"); + "LCFF: no VFORK_DONE " + "support, sleeping a bit\n"); usleep (10000); @@ -873,12 +885,14 @@ holding the child stopped. Try \"set detach-on-fork\" or \ { target_terminal_ours (); if (has_vforked) - fprintf_filtered (gdb_stdlog, _("\ -Attaching after process %d vfork to child process %d.\n"), + fprintf_filtered (gdb_stdlog, + _("Attaching after process %d " + "vfork to child process %d.\n"), parent_pid, child_pid); else - fprintf_filtered (gdb_stdlog, _("\ -Attaching after process %d fork to child process %d.\n"), + fprintf_filtered (gdb_stdlog, + _("Attaching after process %d " + "fork to child process %d.\n"), parent_pid, child_pid); } @@ -1677,8 +1691,9 @@ get_pending_status (struct lwp_info *lp, int *status) else if (!signal_pass_state (signo)) { if (debug_linux_nat) - fprintf_unfiltered (gdb_stdlog, "\ -GPT: lwp %s had signal %s, but it is in no pass state\n", + fprintf_unfiltered (gdb_stdlog, + "GPT: lwp %s had signal %s, " + "but it is in no pass state\n", target_pid_to_str (lp->ptid), target_signal_to_string (signo)); } @@ -1838,10 +1853,12 @@ resume_callback (struct lwp_info *lp, void *data) lp->stopped_by_watchpoint = 0; } else if (lp->stopped && debug_linux_nat) - fprintf_unfiltered (gdb_stdlog, "RC: Not resuming sibling %s (has pending)\n", + fprintf_unfiltered (gdb_stdlog, + "RC: Not resuming sibling %s (has pending)\n", target_pid_to_str (lp->ptid)); else if (debug_linux_nat) - fprintf_unfiltered (gdb_stdlog, "RC: Not resuming sibling %s (not stopped)\n", + fprintf_unfiltered (gdb_stdlog, + "RC: Not resuming sibling %s (not stopped)\n", target_pid_to_str (lp->ptid)); return 0; @@ -2080,7 +2097,8 @@ linux_handle_syscall_trap (struct lwp_info *lp, int stopping) fprintf_unfiltered (gdb_stdlog, "LHST: stopping for %s of syscall %d" " for LWP %ld\n", - lp->syscall_state == TARGET_WAITKIND_SYSCALL_ENTRY + lp->syscall_state + == TARGET_WAITKIND_SYSCALL_ENTRY ? "entry" : "return", syscall_number, GET_LWP (lp->ptid)); @@ -2116,7 +2134,8 @@ linux_handle_syscall_trap (struct lwp_info *lp, int stopping) PT_CONTINUE, can not trigger a syscall trace event. */ if (debug_linux_nat) fprintf_unfiltered (gdb_stdlog, - "LHST: caught syscall event with no syscall catchpoints." + "LHST: caught syscall event " + "with no syscall catchpoints." " %d for LWP %ld, ignoring\n", syscall_number, GET_LWP (lp->ptid)); @@ -2300,7 +2319,8 @@ linux_handle_extended_wait (struct lwp_info *lp, int status, if (debug_linux_nat) fprintf_unfiltered (gdb_stdlog, - "LHEW: Got clone event from LWP %ld, resuming\n", + "LHEW: Got clone event " + "from LWP %ld, resuming\n", GET_LWP (lp->ptid)); linux_ops->to_resume (linux_ops, pid_to_ptid (GET_LWP (lp->ptid)), 0, TARGET_SIGNAL_0); @@ -2330,8 +2350,9 @@ linux_handle_extended_wait (struct lwp_info *lp, int status, if (current_inferior ()->waiting_for_vfork_done) { if (debug_linux_nat) - fprintf_unfiltered (gdb_stdlog, "\ -LHEW: Got expected PTRACE_EVENT_VFORK_DONE from LWP %ld: stopping\n", + fprintf_unfiltered (gdb_stdlog, + "LHEW: Got expected PTRACE_EVENT_" + "VFORK_DONE from LWP %ld: stopping\n", GET_LWP (lp->ptid)); ourstatus->kind = TARGET_WAITKIND_VFORK_DONE; @@ -2339,8 +2360,9 @@ LHEW: Got expected PTRACE_EVENT_VFORK_DONE from LWP %ld: stopping\n", } if (debug_linux_nat) - fprintf_unfiltered (gdb_stdlog, "\ -LHEW: Got PTRACE_EVENT_VFORK_DONE from LWP %ld: resuming\n", + fprintf_unfiltered (gdb_stdlog, + "LHEW: Got PTRACE_EVENT_VFORK_DONE " + "from LWP %ld: resuming\n", GET_LWP (lp->ptid)); ptrace (PTRACE_CONT, GET_LWP (lp->ptid), 0, 0); return 1; @@ -2673,7 +2695,8 @@ stop_wait_callback (struct lwp_info *lp, void *data) ptrace (PTRACE_CONT, GET_LWP (lp->ptid), 0, 0); if (debug_linux_nat) fprintf_unfiltered (gdb_stdlog, - "PTRACE_CONT %s, 0, 0 (%s) (discarding SIGINT)\n", + "PTRACE_CONT %s, 0, 0 (%s) " + "(discarding SIGINT)\n", target_pid_to_str (lp->ptid), errno ? safe_strerror (errno) : "OK"); @@ -3428,7 +3451,8 @@ retry: gdb_assert (lp->resumed); if (debug_linux_nat) - fprintf (stderr, "LWP %ld got an event %06x, leaving pending.\n", + fprintf (stderr, + "LWP %ld got an event %06x, leaving pending.\n", ptid_get_lwp (lp->ptid), lp->status); if (WIFSTOPPED (lp->status)) @@ -3453,8 +3477,9 @@ retry: if (debug_linux_nat) fprintf (stderr, - "LLW: LWP %ld hit a breakpoint while waiting " - "for another process; cancelled it\n", + "LLW: LWP %ld hit a breakpoint while" + " waiting for another process;" + " cancelled it\n", ptid_get_lwp (lp->ptid)); } lp->stopped = 1; @@ -3468,7 +3493,8 @@ retry: else if (WIFEXITED (lp->status) || WIFSIGNALED (lp->status)) { if (debug_linux_nat) - fprintf (stderr, "Process %ld exited while stopping LWPs\n", + fprintf (stderr, + "Process %ld exited while stopping LWPs\n", ptid_get_lwp (lp->ptid)); /* This was the last lwp in the process. Since @@ -3742,7 +3768,8 @@ linux_nat_wait (struct target_ops *ops, ptid_t event_ptid; if (debug_linux_nat) - fprintf_unfiltered (gdb_stdlog, "linux_nat_wait: [%s]\n", target_pid_to_str (ptid)); + fprintf_unfiltered (gdb_stdlog, + "linux_nat_wait: [%s]\n", target_pid_to_str (ptid)); /* Flush the async file first. */ if (target_can_async_p ()) @@ -4245,8 +4272,8 @@ linux_nat_do_thread_registers (bfd *obfd, ptid_t ptid, if (core_regset_p && (regset = gdbarch_regset_from_core_section (gdbarch, ".reg", - sizeof (gregs))) != NULL - && regset->collect_regset != NULL) + sizeof (gregs))) + != NULL && regset->collect_regset != NULL) regset->collect_regset (regset, regcache, -1, &gregs, sizeof (gregs)); else @@ -4258,8 +4285,8 @@ linux_nat_do_thread_registers (bfd *obfd, ptid_t ptid, if (core_regset_p && (regset = gdbarch_regset_from_core_section (gdbarch, ".reg2", - sizeof (fpregs))) != NULL - && regset->collect_regset != NULL) + sizeof (fpregs))) + != NULL && regset->collect_regset != NULL) regset->collect_regset (regset, regcache, -1, &fpregs, sizeof (fpregs)); else @@ -4714,8 +4741,8 @@ linux_nat_info_proc_cmd (char *args, int from_tty) if (fscanf (procfile, "%ld ", <mp) > 0) printf_filtered (_("stime, children: %ld\n"), ltmp); if (fscanf (procfile, "%ld ", <mp) > 0) - printf_filtered (_("jiffies remaining in current time slice: %ld\n"), - ltmp); + printf_filtered (_("jiffies remaining in current " + "time slice: %ld\n"), ltmp); if (fscanf (procfile, "%ld ", <mp) > 0) printf_filtered (_("'nice' value: %ld\n"), ltmp); if (fscanf (procfile, "%lu ", <mp) > 0) @@ -4725,13 +4752,14 @@ linux_nat_info_proc_cmd (char *args, int from_tty) printf_filtered (_("jiffies until next SIGALRM: %lu\n"), (unsigned long) ltmp); if (fscanf (procfile, "%ld ", <mp) > 0) - printf_filtered (_("start time (jiffies since system boot): %ld\n"), - ltmp); + printf_filtered (_("start time (jiffies since " + "system boot): %ld\n"), ltmp); if (fscanf (procfile, "%lu ", <mp) > 0) printf_filtered (_("Virtual memory size: %lu\n"), (unsigned long) ltmp); if (fscanf (procfile, "%lu ", <mp) > 0) - printf_filtered (_("Resident set size: %lu\n"), (unsigned long) ltmp); + printf_filtered (_("Resident set size: %lu\n"), + (unsigned long) ltmp); if (fscanf (procfile, "%lu ", <mp) > 0) printf_filtered (_("rlim: %lu\n"), (unsigned long) ltmp); if (fscanf (procfile, "%lu ", <mp) > 0) @@ -4740,8 +4768,8 @@ linux_nat_info_proc_cmd (char *args, int from_tty) printf_filtered (_("End of text: 0x%lx\n"), ltmp); if (fscanf (procfile, "%lu ", <mp) > 0) printf_filtered (_("Start of stack: 0x%lx\n"), ltmp); -#if 0 /* Don't know how architecture-dependent the rest is... - Anyway the signal bitmap info is available from "status". */ +#if 0 /* Don't know how architecture-dependent the rest is... + Anyway the signal bitmap info is available from "status". */ if (fscanf (procfile, "%lu ", <mp) > 0) /* FIXME arch? */ printf_filtered (_("Kernel stack pointer: 0x%lx\n"), ltmp); if (fscanf (procfile, "%lu ", <mp) > 0) /* FIXME arch? */ @@ -4948,7 +4976,8 @@ add_line_to_sigset (const char *line, sigset_t *sigs) SIGS to match. */ void -linux_proc_pending_signals (int pid, sigset_t *pending, sigset_t *blocked, sigset_t *ignored) +linux_proc_pending_signals (int pid, sigset_t *pending, + sigset_t *blocked, sigset_t *ignored) { FILE *procfile; char buffer[MAXPATHLEN], fname[MAXPATHLEN]; @@ -5012,11 +5041,11 @@ linux_nat_xfer_osdata (struct target_ops *ops, enum target_object object, obstack_init (&obstack); obstack_grow_str (&obstack, "<osdata type=\"types\">\n"); - obstack_xml_printf ( - &obstack, + obstack_xml_printf (&obstack, "<item>" "<column name=\"Type\">processes</column>" - "<column name=\"Description\">Listing of all processes</column>" + "<column name=\"Description\">" + "Listing of all processes</column>" "</item>"); obstack_grow_str0 (&obstack, "</osdata>\n"); @@ -5490,12 +5519,13 @@ linux_nat_stop_lwp (struct lwp_info *lwp, void *data) if (debug_linux_nat) { if (find_thread_ptid (lwp->ptid)->stop_requested) - fprintf_unfiltered (gdb_stdlog, "\ -LNSL: already stopped/stop_requested %s\n", + fprintf_unfiltered (gdb_stdlog, + "LNSL: already stopped/stop_requested %s\n", target_pid_to_str (lwp->ptid)); else - fprintf_unfiltered (gdb_stdlog, "\ -LNSL: already stopped/no stop_requested yet %s\n", + fprintf_unfiltered (gdb_stdlog, + "LNSL: already stopped/no " + "stop_requested yet %s\n", target_pid_to_str (lwp->ptid)); } } |