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binutils-gdb
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Fix bug in values.c unpacking signed characters on hosts where the default 

character type is unsigned.  Add some cases to the tables in procfs.c
for constants defined in newer SVR4 systems and reorder the tests for
ioctl support of resetting the inherit-on-fork flag to favor the latest
method using PIOCRESET.
This commit is contained in:
Fred Fish 1992-04-02 18:00:10 +00:00
parent 03c93c664d
commit 5c1c5e6745
3 changed files with 43 additions and 15 deletions
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10
gdb/ChangeLog
View File

@ -1,3 +1,13 @@
Thu Apr 2 09:47:11 1992 Fred Fish (fnf@cygnus.com)
* values.c (unpack_long): Fix unpacking error for signed chars
on hosts where the default character type is unsigned.
* procfs.c (pr_flag_table, pr_why_table): Add some entries
for newer SVR4 variants.
* procfs.c (proc_set_exec_trap): Reorder tests for ioctl's that
turn off trace inherit-on-fork flag to favor latest SVR4 method.
* procfs.c (mappingflags): Add support for MA_PHYS
Thu Apr 2 00:55:56 1992 John Gilmore (gnu at cygnus.com)
* buildsym.c (read_struct_type): Avoid coredump when C++

46
gdb/procfs.c
View File

@ -136,6 +136,18 @@ static struct trans pr_flag_table[] =
#endif
#if defined (PR_ISSYS)
PR_ISSYS, "PR_ISSYS", "Is a system process",
#endif
#if defined (PR_STEP)
PR_STEP, "PR_STEP", "Process has single step pending",
#endif
#if defined (PR_KLC)
PR_KLC, "PR_KLC", "Kill-on-last-close is in effect",
#endif
#if defined (PR_ASYNC)
PR_ASYNC, "PR_ASYNC", "Asynchronous stop is in effect",
#endif
#if defined (PR_PCOMPAT)
PR_PCOMPAT, "PR_PCOMPAT", "Ptrace compatibility mode in effect",
#endif
0, NULL, NULL
};
@ -161,6 +173,9 @@ static struct trans pr_why_table[] =
#endif
#if defined (PR_JOBCONTROL)
PR_JOBCONTROL, "PR_JOBCONTROL", "Default job control stop signal action",
#endif
#if defined (PR_SUSPENDED)
PR_SUSPENDED, "PR_SUSPENDED", "Process suspended",
#endif
0, NULL, NULL
};
@ -1781,15 +1796,15 @@ proc_set_exec_trap ()
/* Turn off inherit-on-fork flag so that all grand-children of gdb
start with tracing flags cleared. */
#ifdef PIOCRFORK /* Standard SVR4 */
(void) ioctl (fd, PIOCRFORK, NULL);
#else
#ifdef PIOCRESET /* iris (for example) */
#if defined (PIOCRESET) /* New method */
{
long pr_flags;
pr_flags = PR_FORK;
(void) ioctl (fd, PIOCRESET, &pr_flags);
}
#else
#if defined (PIOCRFORK) /* Original method */
(void) ioctl (fd, PIOCRFORK, NULL);
#endif
#endif
}
@ -2612,15 +2627,18 @@ static char *
mappingflags (flags)
long flags;
{
static char asciiflags[7];
static char asciiflags[8];
strcpy (asciiflags, "------");
if (flags & MA_STACK) asciiflags[0] = 's';
if (flags & MA_BREAK) asciiflags[1] = 'b';
if (flags & MA_SHARED) asciiflags[2] = 's';
if (flags & MA_READ) asciiflags[3] = 'r';
if (flags & MA_WRITE) asciiflags[4] = 'w';
if (flags & MA_EXEC) asciiflags[5] = 'x';
strcpy (asciiflags, "-------");
#if defined (MA_PHYS)
if (flags & MA_PHYS) asciiflags[0] = 'd';
#endif
if (flags & MA_STACK) asciiflags[1] = 's';
if (flags & MA_BREAK) asciiflags[2] = 'b';
if (flags & MA_SHARED) asciiflags[3] = 's';
if (flags & MA_READ) asciiflags[4] = 'r';
if (flags & MA_WRITE) asciiflags[5] = 'w';
if (flags & MA_EXEC) asciiflags[6] = 'x';
return (asciiflags);
}
@ -3012,7 +3030,7 @@ info_proc_mappings (pip, summary)
if (!summary)
{
printf_filtered ("Mapped address spaces:\n\n");
printf_filtered ("\t%10s %10s %10s %10s %6s\n",
printf_filtered ("\t%10s %10s %10s %10s %7s\n",
"Start Addr",
" End Addr",
" Size",
@ -3025,7 +3043,7 @@ info_proc_mappings (pip, summary)
{
for (prmap = prmaps; prmap -> pr_size; ++prmap)
{
printf_filtered ("\t%#10x %#10x %#10x %#10x %6s\n",
printf_filtered ("\t%#10x %#10x %#10x %#10x %7s\n",
prmap -> pr_vaddr,
prmap -> pr_vaddr + prmap -> pr_size - 1,
prmap -> pr_size,

2
gdb/values.c
View File

@ -649,7 +649,7 @@ unpack_long (type, valaddr)
{
if (len == sizeof (char))
{
char retval;
SIGNED char retval; /* plain chars might be unsigned on host */
bcopy (valaddr, &retval, sizeof (retval));
SWAP_TARGET_AND_HOST (&retval, sizeof (retval));
return retval;