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(rbs_underflow): Remove.

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(rbs_contains): New function.

(Logical change 1.52)
This commit is contained in:
mostang.com!davidm 2003-02-21 07:36:26 +00:00
parent 0d0c84f63c
commit 749cd25529
1 changed files with 23 additions and 8 deletions
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27
src/ia64/unwind_i.h
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@ -310,8 +310,7 @@ struct ia64_labeled_state
#define ia64_local_resume UNW_OBJ(local_resume)
#define ia64_local_addr_space_init UNW_OBJ(local_addr_space_init)
#define ia64_init UNW_ARCH_OBJ(init)
#define rbs_record_switch UNW_ARCH_OBJ(rbs_record_switch)
#define rbs_underflow UNW_ARCH_OBJ(rbs_underflow)
#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)
@ -333,14 +332,30 @@ extern void _Uia64_install_context (struct cursor *c, unw_word_t pri_unat,
__attribute__ ((noreturn));
extern int ia64_local_resume (unw_addr_space_t as, unw_cursor_t *cursor,
void *arg);
extern int rbs_record_switch (struct cursor *c,
extern int rbs_switch (struct cursor *c,
unw_word_t saved_bsp, unw_word_t saved_bspstore,
unw_word_t saved_rnat_loc);
extern void rbs_underflow (struct cursor *c);
extern int rbs_find_stacked (struct cursor *c, unw_word_t regs_to_skip,
unw_word_t *locp, unw_word_t *rnat_locp);
extern int rbs_cover_and_flush (struct cursor *c, unw_word_t nregs);
/* Return true if BSP points to a word that's stored on register
backing-store RBS. */
static inline int
rbs_contains (struct rbs_area *rbs, unw_word_t bsp)
{
int result;
/* Caveat: this takes advantage of unsigned arithmetic. The full
test is (bsp >= rbs->end - rbs->size) && (bsp < rbs->end). We
take advantage of the fact that -n == ~n + 1. */
result = bsp - rbs->end > ~rbs->size;
debug (150, "%s: 0x%lx in [0x%lx-0x%lx) => %d\n\t(from %p)\n", __FUNCTION__,
(long) bsp, (long) (rbs->end - rbs->size), (long) rbs->end, result,
__builtin_return_address (0));
return result;
}
static inline int
ia64_get_stacked (struct cursor *c, unw_word_t reg,
unw_word_t *locp, unw_word_t *rnat_locp)
@ -355,11 +370,11 @@ ia64_get_stacked (struct cursor *c, unw_word_t reg,
if (rnat_locp)
{
*rnat_locp = ia64_rse_rnat_addr (loc);
if (*rnat_locp >= rbs->end)
if (!rbs_contains (rbs, *rnat_locp))
*rnat_locp = rbs->rnat_loc;
}
if (loc >= rbs->end)
if (!rbs_contains (rbs, loc))
ret = rbs_find_stacked (c, regs_to_skip, locp, rnat_locp);
return ret;
}