GDB can set a breakpoint on this callback and find out what
exception event has occurred. */
-/* The name of the hook to be set to point to the callback function */
+/* The name of the hook to be set to point to the callback function. */
static char HP_ACC_EH_notify_hook[] = "__eh_notify_hook";
-/* The name of the function to be used to set the hook value */
+/* The name of the function to be used to set the hook value. */
static char HP_ACC_EH_set_hook_value[] = "__eh_set_hook_value";
/* The name of the callback function in end.o */
static char HP_ACC_EH_notify_callback[] = "__d_eh_notify_callback";
-/* Name of function in end.o on which a break is set (called by above) */
+/* Name of function in end.o on which a break is set (called by above). */
static char HP_ACC_EH_break[] = "__d_eh_break";
-/* Name of flag (in end.o) that enables catching throws */
+/* Name of flag (in end.o) that enables catching throws. */
static char HP_ACC_EH_catch_throw[] = "__d_eh_catch_throw";
-/* Name of flag (in end.o) that enables catching catching */
+/* Name of flag (in end.o) that enables catching catching. */
static char HP_ACC_EH_catch_catch[] = "__d_eh_catch_catch";
-/* The enum used by aCC */
+/* The enum used by aCC. */
typedef enum
{
__EH_NOTIFY_THROW,
}
/* Initialize exception catchpoint support by looking for the
- necessary hooks/callbacks in end.o, etc., and set the hook value to
- point to the required debug function
+ necessary hooks/callbacks in end.o, etc., and set the hook value
+ to point to the required debug function.
Return 0 => failure
1 => success */
/* Detect and disallow recursion. On HP-UX with aCC, infinite
recursion is a possibility because finding the hook for exception
callbacks involves making a call in the inferior, which means
- re-inserting breakpoints which can re-invoke this code */
+ re-inserting breakpoints which can re-invoke this code. */
static int recurse = 0;
if (recurse > 0)
if (!deprecated_hp_som_som_object_present)
return 0;
- /* We have a SOM executable with SOM debug info; find the hooks */
+ /* We have a SOM executable with SOM debug info; find the hooks. */
/* First look for the notify hook provided by aCC runtime libs */
/* If we find this symbol, we conclude that the executable must
should *not* be tried as an alternative.
ASSUMPTION: Only HP aCC code will have __eh_notify_hook defined.
- ASSUMPTION: HP aCC and g++ modules cannot be linked together. */
+ ASSUMPTION: HP aCC and g++ modules cannot be linked together. */
/* libCsup has this hook; it'll usually be non-debuggable */
msym = lookup_minimal_symbol (HP_ACC_EH_notify_hook, NULL, NULL);
}
else
{
- warning ("Unable to find exception callback hook (%s).", HP_ACC_EH_notify_hook);
+ warning ("Unable to find exception callback hook (%s).",
+ HP_ACC_EH_notify_hook);
warning ("Executable may not have been compiled debuggable with HP aCC.");
warning ("GDB will be unable to intercept exception events.");
eh_notify_hook_addr = 0;
}
/* Next look for the notify callback routine in end.o */
- /* This is always available in the SOM symbol dictionary if end.o is linked in */
+ /* This is always available in the SOM symbol dictionary if end.o is
+ linked in. */
msym = lookup_minimal_symbol (HP_ACC_EH_notify_callback, NULL, NULL);
if (msym)
{
}
else
{
- warning ("Unable to find exception callback routine (%s).", HP_ACC_EH_notify_callback);
+ warning ("Unable to find exception callback routine (%s).",
+ HP_ACC_EH_notify_callback);
warning ("Suggest linking executable with -g (links in /opt/langtools/lib/end.o).");
warning ("GDB will be unable to intercept exception events.");
eh_notify_callback_addr = 0;
shlib_info = bfd_get_section_by_name (symfile_objfile->obfd, "$SHLIB_INFO$");
if (shlib_info && (bfd_section_size (symfile_objfile->obfd, shlib_info) != 0))
{
- /* The minsym we have has the local code address, but that's not the
- plabel that can be used by an inter-load-module call. */
- /* Find solib handle for main image (which has end.o), and use that
- and the min sym as arguments to __d_shl_get() (which does the equivalent
- of shl_findsym()) to find the plabel. */
+ /* The minsym we have has the local code address, but that's not
+ the plabel that can be used by an inter-load-module call. */
+ /* Find solib handle for main image (which has end.o), and use
+ that and the min sym as arguments to __d_shl_get() (which
+ does the equivalent of shl_findsym()) to find the plabel. */
args_for_find_stub args;
static char message[] = "Error while finding exception callback hook:\n";
/* there may be other cases in the future */
}
- /* Set the EH hook to point to the callback routine */
+ /* Set the EH hook to point to the callback routine. */
store_unsigned_integer (buf, 4, enable ? eh_notify_callback_addr : 0); /* FIXME 32x64 problem */
/* pai: (temp) FIXME should there be a pack operation first? */
if (target_write_memory (eh_notify_hook_addr, buf, 4)) /* FIXME 32x64 problem */
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