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From David Mosberger <davidm@hpl.hp.com>:

Browse source 
* libunwind-frame.c (unw_find_dyn_list_p): Replace most arguments
	with a single unw_dyn_info_t pointer.
	(libunwind_find_dyn_list): Likewise.
	* libunwind-frame.h: Likewise.
	* ia64-tdep.c (ia64_find_unwind_table): Switch to using
	UNW_INFO_FORMAT_REMOTE_TABLE so we can avoid having to read in the
	entire unwind-table at once.  Support for this table format has
	been added to libunwind v0.95.
	(ia64_find_proc_info_x): Adjust for remote-unwind-table changes.
	(ia64_get_dyn_info_list): Adjust for interface change for
	libunwind_find_dyn_list().
This commit is contained in:
Kevin Buettner 2003-12-13 03:51:56 +00:00
parent 3a4c93712e
commit 503ff15d38
4 changed files with 47 additions and 38 deletions
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15
gdb/ChangeLog
View file

@ -1,3 +1,18 @@
2003-12-12 Kevin Buettner <kevinb@redhat.com>
From David Mosberger <davidm@hpl.hp.com>:
* libunwind-frame.c (unw_find_dyn_list_p): Replace most arguments
with a single unw_dyn_info_t pointer.
(libunwind_find_dyn_list): Likewise.
* libunwind-frame.h: Likewise.
* ia64-tdep.c (ia64_find_unwind_table): Switch to using
UNW_INFO_FORMAT_REMOTE_TABLE so we can avoid having to read in the
entire unwind-table at once. Support for this table format has
been added to libunwind v0.95.
(ia64_find_proc_info_x): Adjust for remote-unwind-table changes.
(ia64_get_dyn_info_list): Adjust for interface change for
libunwind_find_dyn_list().
2003-12-12 Jeff Johnston <jjohnstn@redhat.com>
* breakpoint.c (breakpoint_enabled): New function to test whether

53
gdb/ia64-tdep.c
View file

@ -2452,23 +2452,11 @@ ia64_find_unwind_table (struct objfile *objfile, unw_word_t ip,
dip->start_ip = segbase;
dip->end_ip = dip->start_ip + p_text->p_memsz;
dip->gp = FIND_GLOBAL_POINTER (ip);
dip->format = UNW_INFO_FORMAT_TABLE;
dip->u.ti.name_ptr = (unw_word_t) bfd_get_filename (bfd);
dip->u.ti.segbase = segbase;
dip->u.ti.table_len = p_unwind->p_memsz / sizeof (unw_word_t);
/* The following can happen in corner cases where dynamically
generated code falls into the same page that contains the
data-segment and the page-offset of the code is within the first
page of the executable. */
if (ip < dip->start_ip || ip >= dip->end_ip)
return -UNW_ENOINFO;
/* Read in the libunwind table. */
*buf = xmalloc (p_unwind->p_memsz);
target_read_memory (p_unwind->p_vaddr + load_base, (char *)(*buf), p_unwind->p_memsz);
dip->u.ti.table_data = (unw_word_t *)(*buf);
dip->format = UNW_INFO_FORMAT_REMOTE_TABLE;
dip->u.rti.name_ptr = (unw_word_t) bfd_get_filename (bfd);
dip->u.rti.segbase = segbase;
dip->u.rti.table_len = p_unwind->p_memsz / sizeof (unw_word_t);
dip->u.rti.table_data = p_unwind->p_vaddr + load_base;
return 0;
}
@ -2490,22 +2478,32 @@ ia64_find_proc_info_x (unw_addr_space_t as, unw_word_t ip, unw_proc_info_t *pi,
version. */
if (get_kernel_table (ip, &di) < 0)
return -UNW_ENOINFO;
if (gdbarch_debug >= 1)
fprintf_unfiltered (gdb_stdlog, "%s: %lx -> "
"(name=`%s',segbase=%lx,start=%lx,end=%lx,gp=%lx,"
"length=%lu,data=%p)\n", __FUNCTION__,
ip, (char *)di.u.ti.name_ptr,
di.u.ti.segbase, di.start_ip, di.end_ip,
di.gp, di.u.ti.table_len, di.u.ti.table_data);
}
else
{
ret = ia64_find_unwind_table (sec->objfile, ip, &di, &buf);
if (ret < 0)
return ret;
if (gdbarch_debug >= 1)
fprintf_unfiltered (gdb_stdlog, "%s: %lx -> "
"(name=`%s',segbase=%lx,start=%lx,end=%lx,gp=%lx,"
"length=%lu,data=%lx)\n", __FUNCTION__,
ip, (char *)di.u.rti.name_ptr,
di.u.rti.segbase, di.start_ip, di.end_ip,
di.gp, di.u.rti.table_len, di.u.rti.table_data);
}
if (gdbarch_debug >= 1)
fprintf_unfiltered (gdb_stdlog, "acquire_unwind_info: %lx -> "
"(name=`%s',segbase=%lx,start=%lx,end=%lx,gp=%lx,"
"length=%lu,data=%p)\n", ip, (char *)di.u.ti.name_ptr,
di.u.ti.segbase, di.start_ip, di.end_ip,
di.gp, di.u.ti.table_len, di.u.ti.table_data);
ret = libunwind_search_unwind_table (&as, ip, &di, pi, need_unwind_info, arg);
ret = libunwind_search_unwind_table (&as, ip, &di, pi, need_unwind_info,
arg);
/* We no longer need the dyn info storage so free it. */
xfree (buf);
@ -2545,10 +2543,7 @@ ia64_get_dyn_info_list (unw_addr_space_t as,
ret = ia64_find_unwind_table (objfile, ip, &di, &buf);
if (ret >= 0)
{
addr = libunwind_find_dyn_list (as, di.u.ti.table_data,
(di.u.ti.table_len
* sizeof (di.u.ti.table_data[0])),
di.u.ti.segbase, di.gp, arg);
addr = libunwind_find_dyn_list (as, &di, arg);
/* We no longer need the dyn info storage so free it. */
xfree (buf);

9
gdb/libunwind-frame.c
View file

@ -58,8 +58,8 @@ static int (*unw_init_remote_p) (unw_cursor_t *, unw_addr_space_t, void *);
static unw_addr_space_t (*unw_create_addr_space_p) (unw_accessors_t *, int);
static int (*unw_search_unwind_table_p) (unw_addr_space_t, unw_word_t, unw_dyn_info_t *,
unw_proc_info_t *, int, void *);
static unw_word_t (*unw_find_dyn_list_p) (unw_addr_space_t, void *, size_t,
unw_word_t, unw_word_t, void *);
static unw_word_t (*unw_find_dyn_list_p) (unw_addr_space_t, unw_dyn_info_t *,
void *);
struct libunwind_frame_cache
@ -171,10 +171,9 @@ libunwind_frame_cache (struct frame_info *next_frame, void **this_cache)
}
unw_word_t
libunwind_find_dyn_list (unw_addr_space_t as, void *table, size_t table_size,
unw_word_t segbase, unw_word_t gp, void *arg)
libunwind_find_dyn_list (unw_addr_space_t as, unw_dyn_info_t *di, void *arg)
{
return unw_find_dyn_list_p (as, table, table_size, segbase, gp, arg);
return unw_find_dyn_list_p (as, di, arg);
}
static const struct frame_unwind libunwind_frame_unwind =

4
gdb/libunwind-frame.h
View file

@ -55,8 +55,8 @@ int libunwind_is_initialized (void);
int libunwind_search_unwind_table (void *as, long ip, void *di,
void *pi, int need_unwind_info, void *args);
unw_word_t libunwind_find_dyn_list (unw_addr_space_t, void *, size_t,
unw_word_t, unw_word_t, void *);
unw_word_t libunwind_find_dyn_list (unw_addr_space_t, unw_dyn_info_t *,
void *);
#endif /* libunwind-frame.h */