mirror of
https://github.com/tobast/libunwind-eh_elf.git
synced 2024-11-04 17:09:25 +01:00
Rename: src/dyn-remote-ia64.c -> src/dyn-remote.c
(Logical change 1.32)
This commit is contained in:
mostang.com!davidm
parent
8bcc9b73a9
commit
692d6c6956
1 changed files with 259 additions and 0 deletions
259
src/dyn-remote.c
259
src/dyn-remote.c
|
|
@ -0,0 +1,259 @@
|
|||
/* libunwind - a platform-independent unwind library
|
||||
Copyright (C) 2001-2002 Hewlett-Packard Co
|
||||
Contributed by David Mosberger-Tang <davidm@hpl.hp.com>
|
||||
|
||||
This file is part of libunwind.
|
||||
|
||||
Permission is hereby granted, free of charge, to any person obtaining
|
||||
a copy of this software and associated documentation files (the
|
||||
"Software"), to deal in the Software without restriction, including
|
||||
without limitation the rights to use, copy, modify, merge, publish,
|
||||
distribute, sublicense, and/or sell copies of the Software, and to
|
||||
permit persons to whom the Software is furnished to do so, subject to
|
||||
the following conditions:
|
||||
|
||||
The above copyright notice and this permission notice shall be
|
||||
included in all copies or substantial portions of the Software.
|
||||
|
||||
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
|
||||
EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
|
||||
MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
|
||||
NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
|
||||
LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
|
||||
OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
|
||||
WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
|
||||
|
||||
#include <endian.h>
|
||||
#include <stdlib.h>
|
||||
|
||||
#include "internal.h"
|
||||
|
||||
static void
|
||||
free_regions (unw_dyn_region_info_t *region)
|
||||
{
|
||||
if (region->next)
|
||||
free_regions (region->next);
|
||||
free (region);
|
||||
}
|
||||
|
||||
static int
|
||||
intern_op (unw_addr_space_t as, unw_accessors_t *a, unw_word_t *addr,
|
||||
unw_dyn_op_t *op, void *arg)
|
||||
{
|
||||
int ret;
|
||||
|
||||
if ((ret = fetch8 (as, a, addr, &op->tag, arg)) < 0
|
||||
|| (ret = fetch8 (as, a, addr, &op->qp, arg)) < 0
|
||||
|| (ret = fetch16 (as, a, addr, &op->reg, arg)) < 0
|
||||
|| (ret = fetch32 (as, a, addr, &op->when, arg)) < 0
|
||||
|| (ret = fetchw (as, a, addr, &op->val, arg)) < 0)
|
||||
return ret;
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int
|
||||
intern_regions (unw_addr_space_t as, unw_accessors_t *a,
|
||||
unw_word_t *addr, unw_dyn_region_info_t **regionp, void *arg)
|
||||
{
|
||||
uint32_t insn_count, op_count;
|
||||
unw_dyn_region_info_t *region;
|
||||
unw_word_t next_addr;
|
||||
int i, ret;
|
||||
|
||||
*regionp = NULL;
|
||||
|
||||
if ((ret = fetchw (as, a, addr, &next_addr, arg)) < 0
|
||||
|| (ret = fetch32 (as, a, addr, &insn_count, arg)) < 0
|
||||
|| (ret = fetch32 (as, a, addr, &op_count, arg)) < 0)
|
||||
return ret;
|
||||
|
||||
region = calloc (1, _U_dyn_region_info_size (op_count));
|
||||
if (!region)
|
||||
{
|
||||
ret = -UNW_ENOMEM;
|
||||
goto out;
|
||||
}
|
||||
|
||||
region->insn_count = insn_count;
|
||||
region->op_count = op_count;
|
||||
for (i = 0; i < op_count; ++i)
|
||||
if ((ret = intern_op (as, a, addr, region->op + i, arg)) < 0)
|
||||
goto out;
|
||||
|
||||
if (next_addr)
|
||||
if ((ret = intern_regions (as, a, &next_addr, ®ion->next, arg)) < 0)
|
||||
goto out;
|
||||
|
||||
*regionp = region;
|
||||
return 0;
|
||||
|
||||
out:
|
||||
if (region)
|
||||
free_regions (region);
|
||||
return ret;
|
||||
}
|
||||
|
||||
static int
|
||||
intern_array (unw_addr_space_t as, unw_accessors_t *a,
|
||||
unw_word_t *addr, unw_word_t table_len, unw_word_t **table_data,
|
||||
void *arg)
|
||||
{
|
||||
unw_word_t *data = calloc (table_len, WSIZE);
|
||||
int ret = 0, i;
|
||||
|
||||
if (!data)
|
||||
{
|
||||
ret = -UNW_ENOMEM;
|
||||
goto out;
|
||||
}
|
||||
|
||||
for (i = 0; i < table_len; ++i)
|
||||
if (fetchw (as, a, addr, data + i, arg) < 0)
|
||||
goto out;
|
||||
|
||||
*table_data = data;
|
||||
return 0;
|
||||
|
||||
out:
|
||||
if (data)
|
||||
free (data);
|
||||
return ret;
|
||||
}
|
||||
|
||||
static void
|
||||
free_dyn_info (unw_dyn_info_t *di)
|
||||
{
|
||||
switch (di->format)
|
||||
{
|
||||
case UNW_INFO_FORMAT_DYNAMIC:
|
||||
if (di->u.pi.regions)
|
||||
{
|
||||
free_regions (di->u.pi.regions);
|
||||
di->u.pi.regions = NULL;
|
||||
}
|
||||
break;
|
||||
|
||||
case UNW_INFO_FORMAT_TABLE:
|
||||
if (di->u.ti.table_data)
|
||||
{
|
||||
free (di->u.ti.table_data);
|
||||
di->u.ti.table_data = NULL;
|
||||
}
|
||||
break;
|
||||
|
||||
default:
|
||||
break;
|
||||
}
|
||||
}
|
||||
|
||||
static int
|
||||
intern_dyn_info (unw_addr_space_t as, unw_accessors_t *a,
|
||||
unw_word_t *addr, unw_dyn_info_t *di, void *arg)
|
||||
{
|
||||
int ret;
|
||||
|
||||
switch (di->format)
|
||||
{
|
||||
case UNW_INFO_FORMAT_DYNAMIC:
|
||||
if ((ret = fetchw (as, a, addr, &di->u.pi.name_ptr, arg)) < 0
|
||||
|| (ret = fetchw (as, a, addr, &di->u.pi.handler, arg)) < 0
|
||||
|| (ret = fetch32 (as, a, addr, &di->u.pi.flags, arg)) < 0
|
||||
|| (ret = fetch32 (as, a, addr, &di->u.pi.pad0, arg)) < 0
|
||||
|| (ret = intern_regions (as, a, addr, &di->u.pi.regions, arg)) < 0)
|
||||
goto out;
|
||||
break;
|
||||
|
||||
case UNW_INFO_FORMAT_TABLE:
|
||||
if ((ret = fetchw (as, a, addr, &di->u.ti.name_ptr, arg)) < 0
|
||||
|| (ret = fetchw (as, a, addr, &di->u.ti.segbase, arg)) < 0
|
||||
|| (ret = fetchw (as, a, addr, &di->u.ti.table_len, arg)) < 0
|
||||
|| (ret = intern_array (as, a, addr, di->u.ti.table_len,
|
||||
&di->u.ti.table_data, arg)) < 0)
|
||||
goto out;
|
||||
break;
|
||||
|
||||
default:
|
||||
ret = -UNW_ENOINFO;
|
||||
goto out;
|
||||
}
|
||||
return 0;
|
||||
|
||||
out:
|
||||
free_dyn_info (di);
|
||||
return ret;
|
||||
}
|
||||
|
||||
HIDDEN int
|
||||
unwi_dyn_remote_find_proc_info (unw_addr_space_t as, unw_word_t ip,
|
||||
unw_proc_info_t *pi, unw_word_t *genp,
|
||||
int need_unwind_info, void *arg)
|
||||
{
|
||||
unw_accessors_t *a = unw_get_accessors (as);
|
||||
unw_word_t dyn_list_addr, addr, next_addr, gen1, gen2;
|
||||
unw_word_t start_ip, end_ip;
|
||||
unw_dyn_info_t di;
|
||||
int32_t pad;
|
||||
int ret;
|
||||
|
||||
ret = (*a->get_dyn_info_list_addr) (as, &dyn_list_addr, arg);
|
||||
if (ret < 0)
|
||||
return ret;
|
||||
|
||||
do
|
||||
{
|
||||
addr = dyn_list_addr;
|
||||
|
||||
if ((ret = fetchw (as, a, &addr, &gen1, arg)) < 0
|
||||
|| (ret = fetchw (as, a, &addr, &next_addr, arg)) < 0)
|
||||
return ret;
|
||||
|
||||
for (addr = next_addr; addr != 0; addr = next_addr)
|
||||
{
|
||||
if ((ret = fetchw (as, a, &addr, &next_addr, arg)) < 0
|
||||
|| (ret = fetchw (as, a, &addr, &start_ip, arg)) < 0
|
||||
|| (ret = fetchw (as, a, &addr, &end_ip, arg)) < 0)
|
||||
return ret;
|
||||
|
||||
if (ip >= di.start_ip && ip < di.end_ip)
|
||||
{
|
||||
if ((ret = fetchw (as, a, &addr, &di.gp, arg)) < 0
|
||||
|| (ret = fetch32 (as, a, &addr, &di.format, arg)) < 0
|
||||
|| (ret = fetch32 (as, a, &addr, &pad, arg)) < 0)
|
||||
return ret;
|
||||
|
||||
if (need_unwind_info)
|
||||
if ((ret = intern_dyn_info (as, a, &addr, &di, arg)) < 0)
|
||||
return ret;
|
||||
|
||||
ret = unwi_extract_dynamic_proc_info (as, ip, pi, &di,
|
||||
need_unwind_info, arg);
|
||||
if (ret < 0)
|
||||
{
|
||||
free_dyn_info (&di);
|
||||
return ret;
|
||||
}
|
||||
return 0;
|
||||
}
|
||||
}
|
||||
|
||||
/* Recheck generation number to ensure things didn't change
|
||||
underneath us: */
|
||||
addr = dyn_list_addr;
|
||||
if ((ret = fetchw (as, a, &addr, &gen2, arg)) < 0)
|
||||
return ret;
|
||||
}
|
||||
while (gen1 != gen2);
|
||||
*genp = gen1;
|
||||
return 0;
|
||||
}
|
||||
|
||||
HIDDEN void
|
||||
unwi_dyn_remote_put_unwind_info (unw_addr_space_t as, unw_proc_info_t *pi,
|
||||
void *arg)
|
||||
{
|
||||
if (!pi->unwind_info)
|
||||
return;
|
||||
|
||||
free_dyn_info(pi->unwind_info);
|
||||
pi->unwind_info = NULL;
|
||||
}
|
||||
Loading…
Reference in a new issue