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* infttrace.c: Include <sys/pstat.h>.

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(child_pid_to_exec_file): Revamp.  Use pstat call to get the
exec file if the ttrace equivalent fails.
This commit is contained in:
Andrew Cagney 2002-01-21 01:27:01 +00:00
parent 92081f4825
commit 6aaea2917f
2 changed files with 36 additions and 57 deletions
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7
gdb/ChangeLog
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@ -1,3 +1,10 @@
2002-01-20 Andrew Cagney <ac131313@redhat.com>
From Jeff Law <law@redhat.com>:
* infttrace.c: Include <sys/pstat.h>.
(child_pid_to_exec_file): Revamp. Use pstat call to get the
exec file if the ttrace equivalent fails.
2002-01-20 Andrew Cagney <ac131313@redhat.com>
* rdi-share/devsw.c (openLogFile): Delete unused ``struct tm lt''.

86
gdb/infttrace.c
View file

@ -28,6 +28,14 @@
#include "gdb_wait.h"
#include "command.h"
/* We need pstat functionality so that we can get the exec file
for a process we attach to.
According to HP, we should use the 64bit interfaces, so we
define _PSTAT64 to achieve this. */
#define _PSTAT64
#include <sys/pstat.h>
/* Some hackery to work around a use of the #define name NO_FLAGS
* in both gdb and HPUX (bfd.h and /usr/include/machine/vmparam.h).
*/
@ -5059,80 +5067,44 @@ udot_info (void)
}
#endif /* !defined (CHILD_XFER_MEMORY). */
/* TTrace version of "target_pid_to_exec_file"
*/
char *
child_pid_to_exec_file (int tid)
{
static char exec_file_buffer[1024];
int tt_status;
CORE_ADDR top_of_stack;
char four_chars[4];
int name_index;
int i;
int done;
ptid_t saved_inferior_ptid;
static char exec_file_buffer[1024];
pid_t pid;
static struct pst_status buf;
/* As of 10.x HP-UX, there's an explicit request to get the
*pathname.
*/
/* On various versions of hpux11, this may fail due to a supposed
kernel bug. We have alternate methods to get this information
(ie pstat). */
tt_status = call_ttrace (TT_PROC_GET_PATHNAME,
tid,
(TTRACE_ARG_TYPE) exec_file_buffer,
(TTRACE_ARG_TYPE) sizeof (exec_file_buffer) - 1,
TT_NIL);
(uint64_t) exec_file_buffer,
sizeof (exec_file_buffer) - 1,
0);
if (tt_status >= 0)
return exec_file_buffer;
/* ??rehrauer: The above request may or may not be broken. It
doesn't seem to work when I use it. But, it may be designed
to only work immediately after an exec event occurs. (I'm
waiting for COSL to explain.)
In any case, if it fails, try a really, truly amazingly gross
hack that DDE uses, of pawing through the process' data
segment to find the pathname.
*/
top_of_stack = (TARGET_PTR_BIT == 64 ? 0x800003ffff7f0000 : 0x7b03a000);
name_index = 0;
done = 0;
/* On the chance that pid != inferior_ptid, set inferior_ptid
to pid, so that (grrrr!) implicit uses of inferior_ptid get
the right id.
*/
saved_inferior_ptid = inferior_ptid;
inferior_ptid = pid_to_ptid (tid);
/* Try to grab a null-terminated string. */
while (!done)
/* Try to get process information via pstat and extract the filename
from the pst_cmd field within the pst_status structure. */
if (pstat_getproc (&buf, sizeof (struct pst_status), 0, tid) != -1)
{
if (target_read_memory (top_of_stack, four_chars, 4) != 0)
{
inferior_ptid = saved_inferior_ptid;
return NULL;
}
for (i = 0; i < 4; i++)
{
exec_file_buffer[name_index++] = four_chars[i];
done = (four_chars[i] == '\0');
if (done)
break;
}
top_of_stack += 4;
char *p = buf.pst_cmd;
while (*p && *p != ' ')
p++;
*p = 0;
return (buf.pst_cmd);
}
if (exec_file_buffer[0] == '\0')
{
inferior_ptid = saved_inferior_ptid;
return NULL;
}
inferior_ptid = saved_inferior_ptid;
return exec_file_buffer;
return (NULL);
}
void
pre_fork_inferior (void)
{