m2-internship/libunwind-eh_elf
1
0
Fork 0
mirror of https://github.com/tobast/libunwind-eh_elf.git synced 2024-09-29 18:09:29 +02:00
Code Issues Releases Activity

Adjust for unw_word_t -> ia64_loc_t changes.

Browse source 
(struct_offset): Delete.
(IA64_LOC_REG): New macro (replaces IA64_LOC() for registers).
(IA64_LOC_ADDR): New macro (replaces IA64_LOC() for addresses).
(IA64_LOC_UC_ADDR): New macro.
(IA64_NULL_LOC): Ditto.
(IA64_IS_NULL_LOC): Ditto.
(IA64_IS_UC_LOC): Ditto.
(struct ia64_state_record): Replace is_signal_frame bit with abi_marker.
(ia64_strloc): New declaration.
(rbs_switch): Change from UNW_ARCH_OBJ() to UNW_OBJ().
(rbs_find_stacked): Ditto.
(rbs_cover_and_flush): Ditto.
(rbs_get_rnat_loc): New inline function.
(rbs_loc): Ditto.

(Logical change 1.84)
This commit is contained in:
mostang.com!davidm 2003-04-23 05:56:59 +00:00
parent 4d4f47cfe6
commit d412b24291
1 changed files with 111 additions and 58 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

169
src/ia64/unwind_i.h
View file

@ -35,8 +35,6 @@ WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
#include "internal.h"
#include "rse.h"
#define struct_offset(str,fld) ((char *)&((str *)NULL)->fld - (char *) 0)
#define IA64_UNW_VER(x) ((x) >> 48)
#define IA64_UNW_FLAG_MASK 0x0000ffff00000000
#define IA64_UNW_FLAG_OSMASK 0x0000f00000000000
@ -48,25 +46,28 @@ WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
#include "tdep.h"
/* Bits 0 to 2 of an location are used to encode its type:
/* Bits 0 and 1 of an location are used to encode its type:
bit 0: set if location uses floating-point format.
bit 1: set if location is a NaT bit on memory stack
bit 2: set if location is a register (not needed for local-only). */
bit 1: set if location is a NaT bit on memory stack. */
#define IA64_LOC_TYPE_FP (1 << 0)
#define IA64_LOC_TYPE_MEMSTK_NAT (1 << 1)
#define IA64_LOC_TYPE_REG (1 << 2)
#define IA64_LOC(l,t) (((l) << 3) | (t))
#define IA64_GET_LOC(l) ((l) >> 3)
#define IA64_MASK_LOC_TYPE(l) ((l) & ~0x7)
#define IA64_IS_FP_LOC(loc) (((loc) & IA64_LOC_TYPE_FP) != 0)
#define IA64_IS_MEMSTK_NAT(loc) (((loc) & IA64_LOC_TYPE_MEMSTK_NAT) != 0)
#ifdef UNW_LOCAL_ONLY
#define IA64_LOC_REG(r,t) (((r) << 2) | (t))
#define IA64_LOC_ADDR(a,t) (((a) & ~0x3) | (t))
#define IA64_LOC_UC_ADDR(a,t) IA64_LOC_ADDR(a, t)
#define IA64_NULL_LOC (0)
#define IA64_GET_REG(l) ((l) >> 2)
#define IA64_GET_ADDR(l) ((l) & ~0x3)
#define IA64_IS_NULL_LOC(l) ((l) == 0)
#define IA64_IS_FP_LOC(l) (((l) & IA64_LOC_TYPE_FP) != 0)
#define IA64_IS_MEMSTK_NAT(l) (((l) & IA64_LOC_TYPE_MEMSTK_NAT) != 0)
#define IA64_IS_REG_LOC(l) 0
#define IA64_IS_UC_LOC(l) 0
#define IA64_REG_LOC(c,r) ((unw_word_t) tdep_uc_addr((c)->as_arg, (r)))
#define IA64_FPREG_LOC(c,r) \
((unw_word_t) tdep_uc_addr((c)->as_arg, (r)) | IA64_LOC_TYPE_FP)
@ -88,7 +89,7 @@ ia64_getfp (struct cursor *c, unw_word_t loc, unw_fpreg_t *val)
debug (150, "%s: access to unsaved register\n", __FUNCTION__);
return -UNW_EBADREG;
}
*val = *(unw_fpreg_t *) IA64_MASK_LOC_TYPE(loc);
*val = *(unw_fpreg_t *) IA64_GET_ADDR (loc);
return 0;
}
@ -100,7 +101,7 @@ ia64_putfp (struct cursor *c, unw_word_t loc, unw_fpreg_t val)
debug (150, "%s: access to unsaved register\n", __FUNCTION__);
return -UNW_EBADREG;
}
*(unw_fpreg_t *) IA64_MASK_LOC_TYPE(loc) = val;
*(unw_fpreg_t *) IA64_GET_ADDR (loc) = val;
return 0;
}
@ -112,7 +113,7 @@ ia64_get (struct cursor *c, unw_word_t loc, unw_word_t *val)
debug (150, "%s: access to unsaved register\n", __FUNCTION__);
return -UNW_EBADREG;
}
*val = *(unw_word_t *) IA64_MASK_LOC_TYPE(loc);
*val = *(unw_word_t *) IA64_GET_ADDR (loc);
return 0;
}
@ -124,16 +125,37 @@ ia64_put (struct cursor *c, unw_word_t loc, unw_word_t val)
debug (150, "%s: access to unsaved register\n", __FUNCTION__);
return -UNW_EBADREG;
}
*(unw_word_t *) IA64_MASK_LOC_TYPE(loc) = (val);
*(unw_word_t *) IA64_GET_ADDR (loc) = (val);
return 0;
}
#else /* !UNW_LOCAL_ONLY */
#define IA64_IS_REG_LOC(r) (((r) & IA64_LOC_TYPE_REG) != 0)
#define IA64_REG_LOC(c,r) IA64_LOC((r), IA64_LOC_TYPE_REG)
#define IA64_FPREG_LOC(c,r) IA64_LOC((r), (IA64_LOC_TYPE_REG \
| IA64_LOC_TYPE_FP))
/* Bits 0 and 1 of the second word (w1) of a location are used
to further distinguish what location we're dealing with:
bit 0: set if the location is a register
bit 1: set of the location is accessed via uc_access(3) */
#define IA64_LOC_TYPE_REG (1 << 0)
#define IA64_LOC_TYPE_UC (1 << 1)
#define IA64_LOC_REG(r,t) ((ia64_loc_t) { ((r) << 2) | (t), \
IA64_LOC_TYPE_REG })
#define IA64_LOC_ADDR(a,t) ((ia64_loc_t) { ((a) & ~0x3) | (t), 0 })
#define IA64_LOC_UC_ADDR(a,t) ((ia64_loc_t) { ((a) & ~0x3) | (t), \
IA64_LOC_TYPE_UC })
#define IA64_NULL_LOC ((ia64_loc_t) { 0, 0 })
#define IA64_GET_REG(l) ((l).w0 >> 2)
#define IA64_GET_ADDR(l) ((l).w0 & ~0x3)
#define IA64_IS_NULL_LOC(l) (((l).w0 | (l).w1) == 0)
#define IA64_IS_FP_LOC(l) (((l).w0 & IA64_LOC_TYPE_FP) != 0)
#define IA64_IS_MEMSTK_NAT(l) (((l).w0 & IA64_LOC_TYPE_MEMSTK_NAT) != 0)
#define IA64_IS_REG_LOC(l) (((l).w1 & IA64_LOC_TYPE_REG) != 0)
#define IA64_IS_UC_LOC(l) (((l).w1 & IA64_LOC_TYPE_UC) != 0)
#define IA64_REG_LOC(c,r) IA64_LOC_REG ((r), 0)
#define IA64_FPREG_LOC(c,r) IA64_LOC_REG ((r), IA64_LOC_TYPE_FP)
# define ia64_find_proc_info(c,ip,n) \
(*(c)->as->acc.find_proc_info)((c)->as, (ip), &(c)->pi, (n), \
@ -142,40 +164,42 @@ ia64_put (struct cursor *c, unw_word_t loc, unw_word_t val)
(*(c)->as->acc.put_unwind_info)((c)->as, (pi), (c)->as_arg)
static inline int
ia64_getfp (struct cursor *c, unw_word_t loc, unw_fpreg_t *val)
ia64_getfp (struct cursor *c, ia64_loc_t loc, unw_fpreg_t *val)
{
unw_word_t addr;
int ret;
if (IA64_IS_REG_LOC (loc))
return (*c->as->acc.access_fpreg) (c->as, IA64_GET_LOC (loc),
return (*c->as->acc.access_fpreg) (c->as, IA64_GET_REG (loc),
val, 0, c->as_arg);
loc = IA64_MASK_LOC_TYPE(loc);
ret = (*c->as->acc.access_mem) (c->as, loc + 0, &val->raw.bits[0], 0,
addr = IA64_GET_ADDR (loc);
ret = (*c->as->acc.access_mem) (c->as, addr + 0, &val->raw.bits[0], 0,
c->as_arg);
if (ret < 0)
return ret;
return (*c->as->acc.access_mem) (c->as, loc + 8, &val->raw.bits[1], 0,
return (*c->as->acc.access_mem) (c->as, addr + 8, &val->raw.bits[1], 0,
c->as_arg);
}
static inline int
ia64_putfp (struct cursor *c, unw_word_t loc, unw_fpreg_t val)
ia64_putfp (struct cursor *c, ia64_loc_t loc, unw_fpreg_t val)
{
unw_word_t addr;
int ret;
if (IA64_IS_REG_LOC (loc))
return (*c->as->acc.access_fpreg) (c->as, IA64_GET_LOC (loc), &val, 1,
return (*c->as->acc.access_fpreg) (c->as, IA64_GET_REG (loc), &val, 1,
c->as_arg);
loc = IA64_MASK_LOC_TYPE(loc);
ret = (*c->as->acc.access_mem) (c->as, loc + 0, &val.raw.bits[0], 1,
addr = IA64_GET_ADDR (loc);
ret = (*c->as->acc.access_mem) (c->as, addr + 0, &val.raw.bits[0], 1,
c->as_arg);
if (ret < 0)
return ret;
return (*c->as->acc.access_mem) (c->as, loc + 8, &val.raw.bits[1], 1,
return (*c->as->acc.access_mem) (c->as, addr + 8, &val.raw.bits[1], 1,
c->as_arg);
}
@ -185,7 +209,7 @@ ia64_putfp (struct cursor *c, unw_word_t loc, unw_fpreg_t val)
the significand bits. */
static inline int
ia64_get (struct cursor *c, unw_word_t loc, unw_word_t *val)
ia64_get (struct cursor *c, ia64_loc_t loc, unw_word_t *val)
{
if (IA64_IS_FP_LOC (loc))
{
@ -204,14 +228,15 @@ ia64_get (struct cursor *c, unw_word_t loc, unw_word_t *val)
}
if (IA64_IS_REG_LOC (loc))
return (*c->as->acc.access_reg)(c->as, IA64_GET_LOC (loc), val, 0,
return (*c->as->acc.access_reg)(c->as, IA64_GET_REG (loc), val, 0,
c->as_arg);
else
return (*c->as->acc.access_mem)(c->as, loc, val, 0, c->as_arg);
return (*c->as->acc.access_mem)(c->as, IA64_GET_ADDR (loc), val, 0,
c->as_arg);
}
static inline int
ia64_put (struct cursor *c, unw_word_t loc, unw_word_t val)
ia64_put (struct cursor *c, ia64_loc_t loc, unw_word_t val)
{
if (IA64_IS_FP_LOC (loc))
{
@ -226,10 +251,11 @@ ia64_put (struct cursor *c, unw_word_t loc, unw_word_t val)
}
if (IA64_IS_REG_LOC (loc))
return (*c->as->acc.access_reg)(c->as, IA64_GET_LOC (loc), &val, 1,
return (*c->as->acc.access_reg)(c->as, IA64_GET_REG (loc), &val, 1,
c->as_arg);
else
return (*c->as->acc.access_mem)(c->as, loc, &val, 1, c->as_arg);
return (*c->as->acc.access_mem)(c->as, IA64_GET_ADDR (loc), &val, 1,
c->as_arg);
}
#endif /* !UNW_LOCAL_ONLY */
@ -282,9 +308,9 @@ struct ia64_state_record
unsigned int done : 1; /* are we done scanning descriptors? */
unsigned int any_spills : 1; /* got any register spills? */
unsigned int in_body : 1; /* are we inside prologue or body? */
unsigned int is_signal_frame : 1;
uint8_t *imask; /* imask of spill_mask record or NULL */
uint16_t abi_marker;
unw_word_t pr_val; /* predicate values */
unw_word_t pr_mask; /* predicate mask */
@ -321,10 +347,11 @@ struct ia64_labeled_state
#define ia64_scratch_loc UNW_OBJ(scratch_loc)
#define ia64_local_resume UNW_OBJ(local_resume)
#define ia64_local_addr_space_init UNW_OBJ(local_addr_space_init)
#define ia64_strloc UNW_OBJ(strloc)
#define rbs_switch UNW_OBJ(rbs_switch)
#define rbs_find_stacked UNW_OBJ(rbs_find_stacked)
#define rbs_cover_and_flush UNW_OBJ(rbs_cover_and_flush)
#define ia64_init UNW_ARCH_OBJ(init)
#define rbs_switch UNW_ARCH_OBJ(rbs_switch)
#define rbs_find_stacked UNW_ARCH_OBJ(rbs_find_stacked)
#define rbs_cover_and_flush UNW_ARCH_OBJ(rbs_cover_and_flush)
extern int ia64_make_proc_info (struct cursor *c);
extern int ia64_create_state_record (struct cursor *c,
@ -338,20 +365,23 @@ extern int ia64_access_reg (struct cursor *c, unw_regnum_t reg,
unw_word_t *valp, int write);
extern int ia64_access_fpreg (struct cursor *c, unw_regnum_t reg,
unw_fpreg_t *valp, int write);
extern unw_word_t ia64_scratch_loc (struct cursor *c, unw_regnum_t reg);
extern ia64_loc_t ia64_scratch_loc (struct cursor *c, unw_regnum_t reg);
extern void _Uia64_install_context (struct cursor *c, unw_word_t pri_unat,
unw_word_t *extra)
extern void _Uia64_install_cursor (struct cursor *c, unw_word_t pri_unat,
unw_word_t *extra)
__attribute__ ((noreturn));
extern int ia64_local_resume (unw_addr_space_t as, unw_cursor_t *cursor,
void *arg);
extern int rbs_switch (struct cursor *c,
unw_word_t saved_bsp, unw_word_t saved_bspstore,
unw_word_t saved_rnat_loc);
ia64_loc_t saved_rnat_loc);
extern int rbs_find_stacked (struct cursor *c, unw_word_t regs_to_skip,
unw_word_t *locp, unw_word_t *rnat_locp);
ia64_loc_t *locp, ia64_loc_t *rnat_locp);
extern int rbs_cover_and_flush (struct cursor *c, unw_word_t nregs);
/* Warning: ia64_strloc() is for debugging only and it is NOT re-entrant! */
extern const char *ia64_strloc (ia64_loc_t loc);
/* Return true if BSP points to a word that's stored on register
backing-store RBS. */
static inline int
@ -368,27 +398,50 @@ rbs_contains (struct rbs_area *rbs, unw_word_t bsp)
return result;
}
static ia64_loc_t
rbs_get_rnat_loc (struct rbs_area *rbs, unw_word_t bsp)
{
unw_word_t rnat_addr = ia64_rse_rnat_addr (bsp);
ia64_loc_t rnat_loc;
if (rbs_contains (rbs, rnat_addr))
{
if (IA64_IS_UC_LOC (rbs->rnat_loc))
rnat_loc = IA64_LOC_UC_ADDR (rnat_addr, 0);
else
rnat_loc = IA64_LOC_ADDR (rnat_addr, 0);
}
else
rnat_loc = rbs->rnat_loc;
return rnat_loc;
}
static ia64_loc_t
rbs_loc (struct rbs_area *rbs, unw_word_t bsp)
{
if (IA64_IS_UC_LOC (rbs->rnat_loc))
return IA64_LOC_UC_ADDR (bsp, 0);
else
return IA64_LOC_ADDR (bsp, 0);
}
static inline int
ia64_get_stacked (struct cursor *c, unw_word_t reg,
unw_word_t *locp, unw_word_t *rnat_locp)
ia64_loc_t *locp, ia64_loc_t *rnat_locp)
{
struct rbs_area *rbs = c->rbs_area + c->rbs_curr;
unw_word_t loc, regs_to_skip = reg - 32;
unw_word_t addr, regs_to_skip = reg - 32;
int ret = 0;
assert (reg >= 32 && reg < 128);
loc = ia64_rse_skip_regs (c->bsp, regs_to_skip);
addr = ia64_rse_skip_regs (c->bsp, regs_to_skip);
if (locp)
*locp = loc;
*locp = rbs_loc (rbs, addr);
if (rnat_locp)
{
*rnat_locp = ia64_rse_rnat_addr (loc);
if (!rbs_contains (rbs, *rnat_locp))
*rnat_locp = rbs->rnat_loc;
}
*rnat_locp = rbs_get_rnat_loc (rbs, addr);
if (!rbs_contains (rbs, loc))
if (!rbs_contains (rbs, addr))
ret = rbs_find_stacked (c, regs_to_skip, locp, rnat_locp);
return ret;
}