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(MIN): If it's defined already, #undef it first.
(IA64_LOC_UC_REG): New macro. (IA64_GET_AUX_ADDR): New macro. (ia64_uc_access_reg): New function. (ia64_uc_access_fpreg): Ditto. (ia64_getfp): Forward uc-locations to ia64_uc_access_fpreg(). (ia64_putfp): Ditto. (ia64_get): Ditto. (ia64_put): Ditto. (rbs_on_uc): New function. (Logical change 1.87)
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08230509a3
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8fee91bd13
1 changed files with 39 additions and 2 deletions
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@ -42,6 +42,9 @@ WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
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#define IA64_UNW_FLAG_UHANDLER(x) ((x) & 0x0000000200000000L)
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#define IA64_UNW_LENGTH(x) ((x) & 0x00000000ffffffffL)
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#ifdef MIN
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# undef MIN
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#endif
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#define MIN(a,b) ((a) < (b) ? (a) : (b))
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#include "tdep.h"
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@ -58,6 +61,7 @@ WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
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#define IA64_LOC_REG(r,t) (((r) << 2) | (t))
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#define IA64_LOC_ADDR(a,t) (((a) & ~0x3) | (t))
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#define IA64_LOC_UC_ADDR(a,t) IA64_LOC_ADDR(a, t)
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#define IA64_LOC_UC_REG(a,t)
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#define IA64_NULL_LOC (0)
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#define IA64_GET_REG(l) ((l) >> 2)
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@ -144,10 +148,14 @@ ia64_put (struct cursor *c, unw_word_t loc, unw_word_t val)
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#define IA64_LOC_ADDR(a,t) ((ia64_loc_t) { ((a) & ~0x3) | (t), 0 })
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#define IA64_LOC_UC_ADDR(a,t) ((ia64_loc_t) { ((a) & ~0x3) | (t), \
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IA64_LOC_TYPE_UC })
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#define IA64_LOC_UC_REG(r,a) ((ia64_loc_t) { ((r) << 2), \
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((a) | IA64_LOC_TYPE_REG \
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| IA64_LOC_TYPE_UC) })
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#define IA64_NULL_LOC ((ia64_loc_t) { 0, 0 })
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#define IA64_GET_REG(l) ((l).w0 >> 2)
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#define IA64_GET_ADDR(l) ((l).w0 & ~0x3)
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#define IA64_GET_AUX_ADDR(l) ((l).w1 & ~0x3)
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#define IA64_IS_NULL_LOC(l) (((l).w0 | (l).w1) == 0)
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#define IA64_IS_FP_LOC(l) (((l).w0 & IA64_LOC_TYPE_FP) != 0)
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#define IA64_IS_MEMSTK_NAT(l) (((l).w0 & IA64_LOC_TYPE_MEMSTK_NAT) != 0)
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@ -163,12 +171,23 @@ ia64_put (struct cursor *c, unw_word_t loc, unw_word_t val)
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# define ia64_put_unwind_info(c,pi) \
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(*(c)->as->acc.put_unwind_info)((c)->as, (pi), (c)->as_arg)
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#define ia64_uc_access_reg UNW_OBJ(uc_access_reg)
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#define ia64_uc_access_fpreg UNW_OBJ(uc_access_fpreg)
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extern int ia64_uc_access_reg (struct cursor *c, ia64_loc_t loc,
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unw_word_t *valp, int write);
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extern int ia64_uc_access_fpreg (struct cursor *c, ia64_loc_t loc,
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unw_fpreg_t *valp, int write);
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static inline int
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ia64_getfp (struct cursor *c, ia64_loc_t loc, unw_fpreg_t *val)
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{
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unw_word_t addr;
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int ret;
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if (IA64_IS_UC_LOC (loc))
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return ia64_uc_access_fpreg (c, loc, val, 0);
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if (IA64_IS_REG_LOC (loc))
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return (*c->as->acc.access_fpreg) (c->as, IA64_GET_REG (loc),
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val, 0, c->as_arg);
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@ -189,6 +208,9 @@ ia64_putfp (struct cursor *c, ia64_loc_t loc, unw_fpreg_t val)
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unw_word_t addr;
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int ret;
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if (IA64_IS_UC_LOC (loc))
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return ia64_uc_access_fpreg (c, loc, &val, 1);
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if (IA64_IS_REG_LOC (loc))
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return (*c->as->acc.access_fpreg) (c->as, IA64_GET_REG (loc), &val, 1,
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c->as_arg);
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@ -227,6 +249,9 @@ ia64_get (struct cursor *c, ia64_loc_t loc, unw_word_t *val)
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return 0;
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}
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if (IA64_IS_UC_LOC (loc))
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return ia64_uc_access_reg (c, loc, val, 0);
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if (IA64_IS_REG_LOC (loc))
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return (*c->as->acc.access_reg)(c->as, IA64_GET_REG (loc), val, 0,
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c->as_arg);
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@ -250,6 +275,9 @@ ia64_put (struct cursor *c, ia64_loc_t loc, unw_word_t val)
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return ia64_putfp (c, loc, tmp);
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}
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if (IA64_IS_UC_LOC (loc))
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return ia64_uc_access_reg (c, loc, &val, 1);
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if (IA64_IS_REG_LOC (loc))
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return (*c->as->acc.access_reg)(c->as, IA64_GET_REG (loc), &val, 1,
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c->as_arg);
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@ -383,6 +411,15 @@ extern int rbs_cover_and_flush (struct cursor *c, unw_word_t nregs);
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/* Warning: ia64_strloc() is for debugging only and it is NOT re-entrant! */
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extern const char *ia64_strloc (ia64_loc_t loc);
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/* Return true if the register-backing store is inside a ucontext_t
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that needs to be accessed via uc_access(3). */
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static inline int
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rbs_on_uc (struct rbs_area *rbs)
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{
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return IA64_IS_UC_LOC (rbs->rnat_loc) && !IA64_IS_REG_LOC (rbs->rnat_loc);
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}
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/* Return true if BSP points to a word that's stored on register
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backing-store RBS. */
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static inline int
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@ -407,7 +444,7 @@ rbs_get_rnat_loc (struct rbs_area *rbs, unw_word_t bsp)
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if (rbs_contains (rbs, rnat_addr))
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{
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if (IA64_IS_UC_LOC (rbs->rnat_loc))
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if (rbs_on_uc (rbs))
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rnat_loc = IA64_LOC_UC_ADDR (rnat_addr, 0);
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else
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rnat_loc = IA64_LOC_ADDR (rnat_addr, 0);
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@ -420,7 +457,7 @@ rbs_get_rnat_loc (struct rbs_area *rbs, unw_word_t bsp)
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static ia64_loc_t
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rbs_loc (struct rbs_area *rbs, unw_word_t bsp)
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{
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if (IA64_IS_UC_LOC (rbs->rnat_loc))
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if (rbs_on_uc (rbs))
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return IA64_LOC_UC_ADDR (bsp, 0);
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else
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return IA64_LOC_ADDR (bsp, 0);
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