mirror of
https://github.com/tobast/libunwind-eh_elf.git
synced 2024-06-18 07:41:44 +02:00
(HPPA_SCF_LINUX_SIGFRAME): Remove (PA-Linux appears to use only
real-time signal frames). (tdep_big_endian): Fix typo. 2004/12/02 00:40:45-08:00 mostang.com!davidm Include "elf32.h" and "dwarf.h". (struct unw_addr_space): If we have atomic-ops, define cache_generation to be of type AO_t. (struct cursor): Define it primarily in terms of the DWARF cursor. Add sigcontext_format and sigcontext_addr members. Add DWARF-location accessors. (Logical change 1.290)
This commit is contained in:
hp.com!davidm
parent
bb03dca33e
commit
e12a996051
|
|
@ -32,56 +32,229 @@ WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
|
|||
#include <stdlib.h>
|
||||
#include <libunwind.h>
|
||||
|
||||
enum hppa_pregnum
|
||||
{
|
||||
HPPA_NUM_PREGS
|
||||
};
|
||||
|
||||
struct hppa_loc
|
||||
{
|
||||
unw_word_t val;
|
||||
#ifndef UNW_LOCAL_ONLY
|
||||
unw_word_t type; /* see HPPA_LOC_TYPE_* macros. */
|
||||
#endif
|
||||
};
|
||||
#include "elf32.h"
|
||||
#include "dwarf.h"
|
||||
|
||||
struct unw_addr_space
|
||||
{
|
||||
struct unw_accessors acc;
|
||||
unw_caching_policy_t caching_policy;
|
||||
#ifdef HAVE_ATOMIC_OPS_H
|
||||
AO_t cache_generation;
|
||||
#else
|
||||
uint32_t cache_generation;
|
||||
#endif
|
||||
unw_word_t dyn_generation; /* see dyn-common.h */
|
||||
unw_word_t dyn_info_list_addr; /* (cached) dyn_info_list_addr */
|
||||
};
|
||||
|
||||
struct cursor
|
||||
{
|
||||
unw_addr_space_t as;
|
||||
void *as_arg;
|
||||
struct dwarf_cursor dwarf; /* must be first */
|
||||
|
||||
/* IP & SP cache: */
|
||||
unw_word_t ip;
|
||||
unw_word_t sp;
|
||||
|
||||
struct hppa_loc ip_loc;
|
||||
struct hppa_loc sp_loc;
|
||||
/* Format of sigcontext structure and address at which it is
|
||||
stored: */
|
||||
enum
|
||||
{
|
||||
HPPA_SCF_NONE, /* no signal frame encountered */
|
||||
HPPA_SCF_LINUX_RT_SIGFRAME /* POSIX ucontext_t */
|
||||
}
|
||||
sigcontext_format;
|
||||
unw_word_t sigcontext_addr;
|
||||
};
|
||||
|
||||
#define DWARF_GET_LOC(l) ((l).val)
|
||||
|
||||
#ifdef UNW_LOCAL_ONLY
|
||||
# define DWARF_NULL_LOC DWARF_LOC (0, 0)
|
||||
# define DWARF_IS_NULL_LOC(l) (DWARF_GET_LOC (l) == 0)
|
||||
# define DWARF_LOC(r, t) ((dwarf_loc_t) { .val = (r) })
|
||||
# define DWARF_IS_REG_LOC(l) 0
|
||||
# define DWARF_REG_LOC(c,r) (DWARF_LOC((unw_word_t) \
|
||||
tdep_uc_addr((c)->as_arg, (r)), 0))
|
||||
# define DWARF_MEM_LOC(c,m) DWARF_LOC ((m), 0)
|
||||
# define DWARF_FPREG_LOC(c,r) (DWARF_LOC((unw_word_t) \
|
||||
tdep_uc_addr((c)->as_arg, (r)), 0))
|
||||
|
||||
static inline int
|
||||
dwarf_getfp (struct dwarf_cursor *c, dwarf_loc_t loc, unw_fpreg_t *val)
|
||||
{
|
||||
if (!DWARF_GET_LOC (loc))
|
||||
return -1;
|
||||
*val = *(unw_fpreg_t *) DWARF_GET_LOC (loc);
|
||||
return 0;
|
||||
}
|
||||
|
||||
static inline int
|
||||
dwarf_putfp (struct dwarf_cursor *c, dwarf_loc_t loc, unw_fpreg_t val)
|
||||
{
|
||||
if (!DWARF_GET_LOC (loc))
|
||||
return -1;
|
||||
*(unw_fpreg_t *) DWARF_GET_LOC (loc) = val;
|
||||
return 0;
|
||||
}
|
||||
|
||||
static inline int
|
||||
dwarf_get (struct dwarf_cursor *c, dwarf_loc_t loc, unw_word_t *val)
|
||||
{
|
||||
if (!DWARF_GET_LOC (loc))
|
||||
return -1;
|
||||
*val = *(unw_word_t *) DWARF_GET_LOC (loc);
|
||||
return 0;
|
||||
}
|
||||
|
||||
static inline int
|
||||
dwarf_put (struct dwarf_cursor *c, dwarf_loc_t loc, unw_word_t val)
|
||||
{
|
||||
if (!DWARF_GET_LOC (loc))
|
||||
return -1;
|
||||
*(unw_word_t *) DWARF_GET_LOC (loc) = val;
|
||||
return 0;
|
||||
}
|
||||
|
||||
#else /* !UNW_LOCAL_ONLY */
|
||||
# define DWARF_LOC_TYPE_FP (1 << 0)
|
||||
# define DWARF_LOC_TYPE_REG (1 << 1)
|
||||
# define DWARF_NULL_LOC DWARF_LOC (0, 0)
|
||||
# define DWARF_IS_NULL_LOC(l) \
|
||||
({ dwarf_loc_t _l = (l); _l.val == 0 && _l.type == 0; })
|
||||
# define DWARF_LOC(r, t) ((dwarf_loc_t) { .val = (r), .type = (t) })
|
||||
# define DWARF_IS_REG_LOC(l) (((l).type & DWARF_LOC_TYPE_REG) != 0)
|
||||
# define DWARF_IS_FP_LOC(l) (((l).type & DWARF_LOC_TYPE_FP) != 0)
|
||||
# define DWARF_REG_LOC(c,r) DWARF_LOC((r), DWARF_LOC_TYPE_REG)
|
||||
# define DWARF_MEM_LOC(c,m) DWARF_LOC ((m), 0)
|
||||
# define DWARF_FPREG_LOC(c,r) DWARF_LOC((r), (DWARF_LOC_TYPE_REG \
|
||||
| DWARF_LOC_TYPE_FP))
|
||||
|
||||
static inline int
|
||||
dwarf_getfp (struct dwarf_cursor *c, dwarf_loc_t loc, unw_fpreg_t *val)
|
||||
{
|
||||
char *valp = (char *) &val;
|
||||
unw_word_t addr;
|
||||
int ret;
|
||||
|
||||
if (DWARF_IS_NULL_LOC (loc))
|
||||
return -UNW_EBADREG;
|
||||
|
||||
if (DWARF_IS_REG_LOC (loc))
|
||||
return (*c->as->acc.access_fpreg) (c->as, DWARF_GET_LOC (loc),
|
||||
val, 0, c->as_arg);
|
||||
|
||||
addr = DWARF_GET_LOC (loc);
|
||||
if ((ret = (*c->as->acc.access_mem) (c->as, addr + 0, (unw_word_t *) valp,
|
||||
0, c->as_arg)) < 0)
|
||||
return ret;
|
||||
|
||||
return (*c->as->acc.access_mem) (c->as, addr + 4, (unw_word_t *) valp + 1, 0,
|
||||
c->as_arg);
|
||||
}
|
||||
|
||||
static inline int
|
||||
dwarf_putfp (struct dwarf_cursor *c, dwarf_loc_t loc, unw_fpreg_t val)
|
||||
{
|
||||
char *valp = (char *) &val;
|
||||
unw_word_t addr;
|
||||
int ret;
|
||||
|
||||
if (DWARF_IS_NULL_LOC (loc))
|
||||
return -UNW_EBADREG;
|
||||
|
||||
if (DWARF_IS_REG_LOC (loc))
|
||||
return (*c->as->acc.access_fpreg) (c->as, DWARF_GET_LOC (loc),
|
||||
&val, 1, c->as_arg);
|
||||
|
||||
addr = DWARF_GET_LOC (loc);
|
||||
if ((ret = (*c->as->acc.access_mem) (c->as, addr + 0, (unw_word_t *) valp,
|
||||
1, c->as_arg)) < 0)
|
||||
return ret;
|
||||
|
||||
return (*c->as->acc.access_mem) (c->as, addr + 4, (unw_word_t *) valp + 1,
|
||||
1, c->as_arg);
|
||||
}
|
||||
|
||||
static inline int
|
||||
dwarf_get (struct dwarf_cursor *c, dwarf_loc_t loc, unw_word_t *val)
|
||||
{
|
||||
if (DWARF_IS_NULL_LOC (loc))
|
||||
return -UNW_EBADREG;
|
||||
|
||||
/* If a code-generator were to save a value of type unw_word_t in a
|
||||
floating-point register, we would have to support this case. I
|
||||
suppose it could happen with MMX registers, but does it really
|
||||
happen? */
|
||||
assert (!DWARF_IS_FP_LOC (loc));
|
||||
|
||||
if (DWARF_IS_REG_LOC (loc))
|
||||
return (*c->as->acc.access_reg) (c->as, DWARF_GET_LOC (loc), val,
|
||||
0, c->as_arg);
|
||||
else
|
||||
return (*c->as->acc.access_mem) (c->as, DWARF_GET_LOC (loc), val,
|
||||
0, c->as_arg);
|
||||
}
|
||||
|
||||
static inline int
|
||||
dwarf_put (struct dwarf_cursor *c, dwarf_loc_t loc, unw_word_t val)
|
||||
{
|
||||
if (DWARF_IS_NULL_LOC (loc))
|
||||
return -UNW_EBADREG;
|
||||
|
||||
/* If a code-generator were to save a value of type unw_word_t in a
|
||||
floating-point register, we would have to support this case. I
|
||||
suppose it could happen with MMX registers, but does it really
|
||||
happen? */
|
||||
assert (!DWARF_IS_FP_LOC (loc));
|
||||
|
||||
if (DWARF_IS_REG_LOC (loc))
|
||||
return (*c->as->acc.access_reg) (c->as, DWARF_GET_LOC (loc), &val,
|
||||
1, c->as_arg);
|
||||
else
|
||||
return (*c->as->acc.access_mem) (c->as, DWARF_GET_LOC (loc), &val,
|
||||
1, c->as_arg);
|
||||
}
|
||||
|
||||
#endif /* !UNW_LOCAL_ONLY */
|
||||
|
||||
#define tdep_needs_initialization UNW_OBJ(needs_initialization)
|
||||
#define tdep_init UNW_OBJ(init)
|
||||
/* Platforms that support UNW_INFO_FORMAT_TABLE need to define
|
||||
tdep_search_unwind_table. */
|
||||
#define tdep_search_unwind_table UNW_ARCH_OBJ(search_unwind_table)
|
||||
#define tdep_find_proc_info UNW_ARCH_OBJ(find_proc_info)
|
||||
#define tdep_put_unwind_info UNW_ARCH_OBJ(put_unwind_info)
|
||||
#define tdep_search_unwind_table dwarf_search_unwind_table
|
||||
#define tdep_uc_addr UNW_ARCH_OBJ(uc_addr)
|
||||
#define tdep_get_elf_image UNW_ARCH_OBJ(get_elf_image)
|
||||
#define tdep_access_reg UNW_OBJ(access_reg)
|
||||
#define tdep_access_fpreg UNW_OBJ(access_fpreg)
|
||||
|
||||
#ifdef UNW_LOCAL_ONLY
|
||||
# define tdep_find_proc_info(c,ip,n) \
|
||||
dwarf_find_proc_info((c)->as, (ip), &(c)->pi, (n), \
|
||||
(c)->as_arg)
|
||||
# define tdep_put_unwind_info(c,pi) \
|
||||
dwarf_put_unwind_info((c)->as, (pi), (c)->as_arg)
|
||||
#else
|
||||
# define tdep_find_proc_info(c,ip,n) \
|
||||
(*(c)->as->acc.find_proc_info)((c)->as, (ip), &(c)->pi, (n), \
|
||||
(c)->as_arg)
|
||||
# define tdep_put_unwind_info(c,pi) \
|
||||
(*(c)->as->acc.put_unwind_info)((c)->as, (pi), (c)->as_arg)
|
||||
#endif
|
||||
|
||||
#define tdep_get_as(c) ((c)->dwarf.as)
|
||||
#define tdep_get_as_arg(c) ((c)->dwarf.as_arg)
|
||||
#define tdep_get_ip(c) ((c)->dwarf.ip)
|
||||
#define tdep_big_endian(as) 1
|
||||
|
||||
extern int tdep_needs_initialization;
|
||||
|
||||
extern void tdep_init (void);
|
||||
extern int tdep_search_unwind_table (unw_addr_space_t as, unw_word_t ip,
|
||||
unw_dyn_info_t *di, unw_proc_info_t *pi,
|
||||
int need_unwind_info, void *arg);
|
||||
extern int tdep_find_proc_info (unw_addr_space_t as, unw_word_t ip,
|
||||
unw_proc_info_t *pi, int need_unwind_info,
|
||||
void *arg);
|
||||
extern void tdep_put_unwind_info (unw_addr_space_t as,
|
||||
unw_proc_info_t *pi, void *arg);
|
||||
extern void *tdep_uc_addr (ucontext_t *uc, int reg);
|
||||
extern int tdep_get_elf_image (struct elf_image *ei, pid_t pid, unw_word_t ip,
|
||||
unsigned long *segbase, unsigned long *mapoff);
|
||||
extern int tdep_access_reg (struct cursor *c, unw_regnum_t reg,
|
||||
unw_word_t *valp, int write);
|
||||
extern int tdep_access_fpreg (struct cursor *c, unw_regnum_t reg,
|
||||
unw_fpreg_t *valp, int write);
|
||||
|
||||
#endif /* TDEP_HPPA_H */
|
||||
|
|
|
|||
Loading…
Reference in a new issue