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Code Issues Releases Activity

(update_frame_state): Handle "cfm" cache.

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(Logical change 1.42)
This commit is contained in:
mostang.com!davidm 2003-01-23 18:47:51 +00:00
parent 717cb71374
commit 83893355b0
1 changed files with 11 additions and 12 deletions

23
src/ia64/Gstep-ia64.c
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@ -76,7 +76,7 @@ check_rbs_switch (struct cursor *c)
static inline int static inline int
update_frame_state (struct cursor *c) update_frame_state (struct cursor *c)
{ {
unw_word_t prev_ip, prev_sp, prev_bsp, ip, pr, num_regs, cfm; unw_word_t prev_ip, prev_sp, prev_bsp, ip, pr, num_regs;
int ret; int ret;
prev_ip = c->ip; prev_ip = c->ip;
@ -84,6 +84,10 @@ update_frame_state (struct cursor *c)
prev_bsp = c->bsp; prev_bsp = c->bsp;
c->cfm_loc = c->pfs_loc; c->cfm_loc = c->pfs_loc;
/* update the CFM cache: */
ret = ia64_get (c, c->cfm_loc, &c->cfm);
if (ret < 0)
return ret;
num_regs = 0; num_regs = 0;
if (c->is_signal_frame) if (c->is_signal_frame)
@ -102,24 +106,19 @@ update_frame_state (struct cursor *c)
unwind info for sigtramp. Fix it up here. */ unwind info for sigtramp. Fix it up here. */
c->ip_loc = (c->sigcontext_loc + SIGCONTEXT_IP_OFF); c->ip_loc = (c->sigcontext_loc + SIGCONTEXT_IP_OFF);
c->cfm_loc = (c->sigcontext_loc + SIGCONTEXT_CFM_OFF); c->cfm_loc = (c->sigcontext_loc + SIGCONTEXT_CFM_OFF);
/* update the CFM cache: */
ret = ia64_get (c, c->cfm_loc, &c->cfm);
if (ret < 0)
return ret;
} }
/* do what can't be described by unwind directives: */ /* do what can't be described by unwind directives: */
c->pfs_loc = (c->sigcontext_loc + SIGCONTEXT_AR_PFS_OFF); c->pfs_loc = (c->sigcontext_loc + SIGCONTEXT_AR_PFS_OFF);
ret = ia64_get (c, c->cfm_loc, &cfm); num_regs = c->cfm & 0x7f; /* size of frame */
if (ret < 0)
return ret;
num_regs = cfm & 0x7f; /* size of frame */
} }
else else
{ num_regs = (c->cfm >> 7) & 0x7f; /* size of locals */
ret = ia64_get (c, c->cfm_loc, &cfm);
if (ret < 0)
return ret;
num_regs = (cfm >> 7) & 0x7f; /* size of locals */
}
if (c->bsp_loc) if (c->bsp_loc)
{ {