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* nto-tdep.h: Include osabi.h. Prototypes for generic Neutrino

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osabi sniffer, signal handling initializer, 'in_dynsym_resolve_code'
function and nto_set_target function.
(struct nto_target_ops): Put comments inline with struct.  Add osabi
sniffer hook.  Redefine macros to permit testing/assignment.  Remove
nto_ prefix from members.
* nto-tdep.c (nto_find_and_open_solib): Allocate all buffers
dynamically to support arbitrary root paths.  Check for basename of
lib in search path and then check for absolute.
(nto_in_dynsym_resolve_code): New function.
(nto_core_sniffer): New function.
(regset_core_fns): Register core sniffer.
(nto_initialize_signals): New function.
(_initialize_nto_tdep): Move signal initialization code to above to
avoid initialization race conditions.
(nto_set_target): New function.
* nto-procfs.c: Minor formatting/indenting changes.
(procfs_is_nto_target): New function.
(procfs_open): Set nto_is_nto_target.
(_initialize_procfs): Ditto.  Remove notice_signals() call to avoid
initialization race conditions.
(procfs_create_inferior): Resume inferior after creation.
* i386-nto-tdep.c: Declare i386_nto_target.
(init_i386nto_ops): Initialize i386_nto_target instead of
current_nto_target.
(i386nto_init_abi): Initialize signals.  Call nto_set_target.  Set
TARGET_SO_IN_DYNSYM_RESOLVE_CODE.
(_initialize_i386nto_tdep): Call init_i386nto_ops.  Register osabi sniffer.
This commit is contained in:
Kris Warkentin
2004-12-10 13:38:23 +00:00
parent 0e2cfdce25
commit d737fd7f91
5 changed files with 267 additions and 107 deletions
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50
gdb/nto-procfs.c
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@@ -97,20 +97,26 @@ static unsigned nto_procfs_node = ND_LOCAL_NODE;
is required is because QNX node descriptors are transient so
we have to re-acquire them every time. */
static unsigned
nto_node(void)
nto_node (void)
{
unsigned node;
if (ND_NODE_CMP(nto_procfs_node, ND_LOCAL_NODE) == 0)
if (ND_NODE_CMP (nto_procfs_node, ND_LOCAL_NODE) == 0)
return ND_LOCAL_NODE;
node = netmgr_strtond(nto_procfs_path,0);
node = netmgr_strtond (nto_procfs_path, 0);
if (node == -1)
error ("Lost the QNX node. Debug session probably over.");
error ("Lost the QNX node. Debug session probably over.");
return (node);
}
static enum gdb_osabi
procfs_is_nto_target (bfd *abfd)
{
return GDB_OSABI_QNXNTO;
}
/* This is called when we call 'target procfs <arg>' from the (gdb) prompt.
For QNX6 (nto), the only valid arg will be a QNX node string,
eg: "/net/some_node". If arg is not a valid QNX node, we will
@@ -124,6 +130,8 @@ procfs_open (char *arg, int from_tty)
int fd, total_size;
procfs_sysinfo *sysinfo;
nto_is_nto_target = procfs_is_nto_target;
/* Set the default node used for spawning to this one,
and only override it if there is a valid arg. */
@@ -153,7 +161,8 @@ procfs_open (char *arg, int from_tty)
*endstr = 0;
}
}
snprintf (nto_procfs_path, PATH_MAX - 1, "%s%s", nodestr ? nodestr : "", "/proc");
snprintf (nto_procfs_path, PATH_MAX - 1, "%s%s", nodestr ? nodestr : "",
"/proc");
if (nodestr)
xfree (nodestr);
@@ -271,7 +280,7 @@ procfs_pidlist (char *args, int from_tty)
if (dp == NULL)
{
fprintf_unfiltered (gdb_stderr, "failed to opendir \"%s\" - %d (%s)",
nto_procfs_path, errno, safe_strerror (errno));
nto_procfs_path, errno, safe_strerror (errno));
return;
}
@@ -299,7 +308,7 @@ procfs_pidlist (char *args, int from_tty)
if (fd == -1)
{
fprintf_unfiltered (gdb_stderr, "failed to open %s - %d (%s)\n",
buf, errno, safe_strerror (errno));
buf, errno, safe_strerror (errno));
closedir (dp);
return;
}
@@ -308,8 +317,8 @@ procfs_pidlist (char *args, int from_tty)
if (devctl (fd, DCMD_PROC_INFO, pidinfo, sizeof (buf), 0) != EOK)
{
fprintf_unfiltered (gdb_stderr,
"devctl DCMD_PROC_INFO failed - %d (%s)\n", errno,
safe_strerror (errno));
"devctl DCMD_PROC_INFO failed - %d (%s)\n",
errno, safe_strerror (errno));
break;
}
num_threads = pidinfo->num_threads;
@@ -375,7 +384,8 @@ procfs_meminfo (char *args, int from_tty)
err = devctl (ctl_fd, DCMD_PROC_MAPINFO, NULL, 0, &num);
if (err != EOK)
{
printf ("failed devctl num mapinfos - %d (%s)\n", err, safe_strerror (err));
printf ("failed devctl num mapinfos - %d (%s)\n", err,
safe_strerror (err));
return;
}
@@ -565,7 +575,7 @@ do_attach (ptid_t ptid)
if (devctl (ctl_fd, DCMD_PROC_STATUS, &status, sizeof (status), 0) == EOK
&& status.flags & _DEBUG_FLAG_STOPPED)
SignalKill (nto_node(), PIDGET (ptid), 0, SIGCONT, 0, 0);
SignalKill (nto_node (), PIDGET (ptid), 0, SIGCONT, 0, 0);
attach_flag = 1;
nto_init_solib_absolute_prefix ();
return ptid;
@@ -778,7 +788,7 @@ procfs_detach (char *args, int from_tty)
siggnal = atoi (args);
if (siggnal)
SignalKill (nto_node(), PIDGET (inferior_ptid), 0, siggnal, 0, 0);
SignalKill (nto_node (), PIDGET (inferior_ptid), 0, siggnal, 0, 0);
close (ctl_fd);
ctl_fd = -1;
@@ -868,8 +878,8 @@ procfs_resume (ptid_t ptid, int step, enum target_signal signo)
{
if (signal_to_pass != status.info.si_signo)
{
SignalKill (nto_node(), PIDGET (inferior_ptid), 0, signal_to_pass,
0, 0);
SignalKill (nto_node (), PIDGET (inferior_ptid), 0,
signal_to_pass, 0, 0);
run.flags |= _DEBUG_RUN_CLRFLT | _DEBUG_RUN_CLRSIG;
}
else /* Let it kill the program without telling us. */
@@ -892,7 +902,7 @@ procfs_mourn_inferior (void)
{
if (!ptid_equal (inferior_ptid, null_ptid))
{
SignalKill (nto_node(), PIDGET (inferior_ptid), 0, SIGKILL, 0, 0);
SignalKill (nto_node (), PIDGET (inferior_ptid), 0, SIGKILL, 0, 0);
close (ctl_fd);
}
inferior_ptid = null_ptid;
@@ -1042,7 +1052,7 @@ procfs_create_inferior (char *exec_file, char *allargs, char **env,
if (ND_NODE_CMP (nto_procfs_node, ND_LOCAL_NODE) != 0)
{
inherit.nd = nto_node();
inherit.nd = nto_node ();
inherit.flags |= SPAWN_SETND;
inherit.flags &= ~SPAWN_EXEC;
}
@@ -1055,7 +1065,8 @@ procfs_create_inferior (char *exec_file, char *allargs, char **env,
sigprocmask (SIG_BLOCK, &set, NULL);
if (pid == -1)
error ("Error spawning %s: %d (%s)", argv[0], errno, safe_strerror (errno));
error ("Error spawning %s: %d (%s)", argv[0], errno,
safe_strerror (errno));
if (fds[0] != STDIN_FILENO)
close (fds[0]);
@@ -1083,6 +1094,8 @@ procfs_create_inferior (char *exec_file, char *allargs, char **env,
|| (symfile_objfile != NULL && symfile_objfile->obfd != NULL))
SOLIB_CREATE_INFERIOR_HOOK (pid);
#endif
stop_soon = 0;
proceed (-1, TARGET_SIGNAL_DEFAULT, 0);
}
static void
@@ -1324,7 +1337,6 @@ _initialize_procfs (void)
/* Set up trace and fault sets, as gdb expects them. */
sigemptyset (&run.trace);
notice_signals ();
/* Stuff some information. */
nto_cpuinfo_flags = SYSPAGE_ENTRY (cpuinfo)->flags;
@@ -1332,6 +1344,8 @@ _initialize_procfs (void)
add_info ("pidlist", procfs_pidlist, "pidlist");
add_info ("meminfo", procfs_meminfo, "memory information");
nto_is_nto_target = procfs_is_nto_target;
}