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Wed Jul 16 10:38:03 1997 Michael Snyder (msnyder@cleaver.cygnus.com)

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* sol-thread.c (sol_thread_[store, fetch]_registers): if
        inferior_pid is an LWP rather than a Solaris thread, let
        procfs handle the request.
        (rw_common, sol_thread_xfer_memory): procfs_xfer_memory will
        only work if inferior_pid points to an LWP (rather than a
        Solaris thread).  Use procfs_first_available to find a good LWP.
        (info_solthreads): added a maintenance command to list all
        known Solaris threads and their attributes.
This commit is contained in:
Michael Snyder 1997-07-16 19:16:07 +00:00
parent e53430c439
commit 0f5b751aaf
2 changed files with 107 additions and 6 deletions
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11
gdb/ChangeLog
View File

@ -1,3 +1,14 @@
Wed Jul 16 10:38:03 1997 Michael Snyder (msnyder@cleaver.cygnus.com)
* sol-thread.c (sol_thread_[store, fetch]_registers): if
inferior_pid is an LWP rather than a Solaris thread, let
procfs handle the request.
(rw_common, sol_thread_xfer_memory): procfs_xfer_memory will
only work if inferior_pid points to an LWP (rather than a
Solaris thread). Use procfs_first_available to find a good LWP.
(info_solthreads): added a maintenance command to list all
known Solaris threads and their attributes.
Mon Jul 14 18:02:53 1997 Michael Snyder (msnyder@cleaver.cygnus.com)
* procfs.c (wait_fd): Handle an fd that has "hung up" or

102
gdb/sol-thread.c
View File

@ -67,6 +67,7 @@ Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
#include <unistd.h>
#include <sys/stat.h>
#include <dlfcn.h>
#include "gdbcmd.h"
extern struct target_ops sol_thread_ops; /* Forward declaration */
@ -601,7 +602,13 @@ sol_thread_fetch_registers (regno)
caddr_t xregset;
#endif
/* Convert inferior_pid into a td_thrhandle_t */
if (!is_thread (inferior_pid))
{ /* LWP: pass the request on to procfs.c */
procfs_ops.to_fetch_registers (regno);
return;
}
/* Solaris thread: convert inferior_pid into a td_thrhandle_t */
thread = GET_THREAD (inferior_pid);
@ -671,7 +678,13 @@ sol_thread_store_registers (regno)
caddr_t xregset;
#endif
/* Convert inferior_pid into a td_thrhandle_t */
if (!is_thread (inferior_pid))
{ /* LWP: pass the request on to procfs.c */
procfs_ops.to_store_registers (regno);
return;
}
/* Solaris thread: convert inferior_pid into a td_thrhandle_t */
thread = GET_THREAD (inferior_pid);
@ -758,8 +771,10 @@ sol_thread_xfer_memory (memaddr, myaddr, len, dowrite, target)
old_chain = save_inferior_pid ();
if (is_thread (inferior_pid))
inferior_pid = main_ph.pid; /* It's a thread. Convert to lwp */
if (is_thread (inferior_pid) || /* A thread */
!target_thread_alive (inferior_pid)) /* An lwp, but not alive */
inferior_pid = procfs_first_available (); /* Find any live lwp. */
/* Note: don't need to call switch_to_thread; we're just reading memory. */
retval = procfs_ops.to_xfer_memory (memaddr, myaddr, len, dowrite, target);
@ -971,8 +986,10 @@ rw_common (int dowrite, const struct ps_prochandle *ph, paddr_t addr,
old_chain = save_inferior_pid ();
if (is_thread (inferior_pid))
inferior_pid = main_ph.pid; /* It's a thread. Convert to lwp */
if (is_thread (inferior_pid) || /* A thread */
!target_thread_alive (inferior_pid)) /* An lwp, but not alive */
inferior_pid = procfs_first_available (); /* Find any live lwp. */
/* Note: don't need to call switch_to_thread; we're just reading memory. */
while (size > 0)
{
@ -1221,6 +1238,74 @@ solaris_pid_to_str (pid)
return buf;
}
#ifdef MAINTENANCE_CMDS
/* Worker bee for info sol-thread command. This is a callback function that
gets called once for each Solaris thread (ie. not kernel thread) in the
inferior. Print anything interesting that we can think of. */
static int
info_cb (th, s)
const td_thrhandle_t *th;
void *s;
{
td_err_e ret;
td_thrinfo_t ti;
struct minimal_symbol *msym;
if ((ret = p_td_thr_get_info (th, &ti)) == TD_OK)
{
printf_filtered ("%s thread #%d, lwp %d, ",
ti.ti_type == TD_THR_SYSTEM ? "system" : "user ",
ti.ti_tid, ti.ti_lid);
switch (ti.ti_state) {
default:
case TD_THR_UNKNOWN: printf_filtered ("<unknown state>"); break;
case TD_THR_STOPPED: printf_filtered ("(stopped)"); break;
case TD_THR_RUN: printf_filtered ("(run) "); break;
case TD_THR_ACTIVE: printf_filtered ("(active) "); break;
case TD_THR_ZOMBIE: printf_filtered ("(zombie) "); break;
case TD_THR_SLEEP: printf_filtered ("(asleep) "); break;
case TD_THR_STOPPED_ASLEEP:
printf_filtered ("(stopped asleep)"); break;
}
/* Print thr_create start function: */
if (ti.ti_startfunc != 0)
if (msym = lookup_minimal_symbol_by_pc (ti.ti_startfunc))
printf_filtered (" startfunc: %s\n", SYMBOL_NAME (msym));
else
printf_filtered (" startfunc: 0x%08x\n", ti.ti_startfunc);
/* If thread is asleep, print function that went to sleep: */
if (ti.ti_state == TD_THR_SLEEP)
if (msym = lookup_minimal_symbol_by_pc (ti.ti_pc))
printf_filtered (" - Sleep func: %s\n", SYMBOL_NAME (msym));
else
printf_filtered (" - Sleep func: 0x%08x\n", ti.ti_startfunc);
/* Wrap up line, if necessary */
if (ti.ti_state != TD_THR_SLEEP && ti.ti_startfunc == 0)
printf_filtered ("\n"); /* don't you hate counting newlines? */
}
else
warning ("info sol-thread: failed to get info for thread.");
return 0;
}
/* List some state about each Solaris user thread in the inferior. */
static void
info_solthreads (args, from_tty)
char *args;
int from_tty;
{
p_td_ta_thr_iter (main_ta, info_cb, args,
TD_THR_ANY_STATE, TD_THR_LOWEST_PRIORITY,
TD_SIGNO_MASK, TD_THR_ANY_USER_FLAGS);
}
#endif /* MAINTENANCE_CMDS */
struct target_ops sol_thread_ops = {
"solaris-threads", /* to_shortname */
"Solaris threads and pthread.", /* to_longname */
@ -1305,6 +1390,11 @@ _initialize_sol_thread ()
procfs_suppress_run = 1;
#ifdef MAINTENANCE_CMDS
add_cmd ("sol-threads", class_maintenance, info_solthreads,
"Show info on Solaris user threads.\n", &maintenanceinfolist);
#endif /* MAINTENANCE_CMDS */
return;
die: