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(unw_init_remote): Rename from ia64_init_remote(). Initialize

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cfm_loc with UNW_IA64_CFM.  Initialize bspstore_loc with
	UNW_IA64_AR_BSPSTORE.  Renamem rp_loc to ip_loc and initialize
	with UNW_IA64_IP.  Initialized the cached values of
	PR and IP.  Initialize sp and psp to value in UNW_IA64_SP.
	Initialize exception handling args by reading the corresponding
	scratch registers (r15-r18).  If the read fails, initialize
	with 0.  Finish by calling ia64_get_proc_info() instead of
	ia64_get_frame_state().

(Logical change 1.5)
This commit is contained in:
(none)!davidm 2002-02-22 21:58:53 +00:00
parent dffc24cb9f
commit 5cdb197f44
1 changed files with 34 additions and 16 deletions
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50
src/ia64/unw_init_remote.c
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@ -25,10 +25,10 @@ License. */
#include "unwind_i.h" #include "unwind_i.h"
int int
ia64_init_remote (unw_cursor_t *cursor, unw_accessors_t *a) unw_init_remote (unw_cursor_t *cursor, unw_accessors_t *a)
{ {
struct ia64_cursor *c = (struct ia64_cursor *) cursor; struct ia64_cursor *c = (struct ia64_cursor *) cursor;
int i; int i, ret;
if (unw.first_time) if (unw.first_time)
{ {
@ -38,13 +38,13 @@ ia64_init_remote (unw_cursor_t *cursor, unw_accessors_t *a)
c->acc = *a; c->acc = *a;
c->cfm_loc = IA64_REG_LOC (UNW_IA64_AR_PFS); c->cfm_loc = IA64_REG_LOC (UNW_IA64_CFM);
c->top_rnat_loc = IA64_REG_LOC (UNW_IA64_AR_RNAT); c->top_rnat_loc = IA64_REG_LOC (UNW_IA64_AR_RNAT);
c->bsp_loc = IA64_REG_LOC (UNW_IA64_AR_BSP); c->bsp_loc = IA64_REG_LOC (UNW_IA64_AR_BSP);
c->bspstore_loc = IA64_REG_LOC (UNW_IA64_AR_BSP); c->bspstore_loc = IA64_REG_LOC (UNW_IA64_AR_BSPSTORE);
c->pfs_loc = IA64_REG_LOC (UNW_IA64_AR_PFS); c->pfs_loc = IA64_REG_LOC (UNW_IA64_AR_PFS);
c->rnat_loc = IA64_REG_LOC (UNW_IA64_AR_RNAT); c->rnat_loc = IA64_REG_LOC (UNW_IA64_AR_RNAT);
c->rp_loc = IA64_REG_LOC (UNW_IA64_BR + 0); c->ip_loc = IA64_REG_LOC (UNW_IA64_IP);
c->pri_unat_loc = 0; /* no primary UNaT location */ c->pri_unat_loc = 0; /* no primary UNaT location */
c->unat_loc = IA64_REG_LOC (UNW_IA64_AR_UNAT); c->unat_loc = IA64_REG_LOC (UNW_IA64_AR_UNAT);
c->pr_loc = IA64_REG_LOC (UNW_IA64_PR); c->pr_loc = IA64_REG_LOC (UNW_IA64_PR);
@ -74,25 +74,43 @@ ia64_init_remote (unw_cursor_t *cursor, unw_accessors_t *a)
for (i = 16; i <= 31; ++i) for (i = 16; i <= 31; ++i)
c->fr_loc[i - 16] = IA64_FPREG_LOC (UNW_IA64_FR + i); c->fr_loc[i - 16] = IA64_FPREG_LOC (UNW_IA64_FR + i);
if (ia64_get (c, IA64_REG_LOC (UNW_IA64_SP), &c->psp) < 0) ret = ia64_get (c, c->pr_loc, &c->pr);
return -1; if (ret < 0)
return ret;
if (ia64_get (c, c->bsp_loc, &c->bsp) < 0) ret = ia64_get (c, c->ip_loc, &c->ip);
return -1; if (ret < 0)
return ret;
ret = ia64_get (c, IA64_REG_LOC (UNW_IA64_SP), &c->sp);
if (ret < 0)
return ret;
c->psp = c->sp;
ret = ia64_get (c, c->bsp_loc, &c->bsp);
if (ret < 0)
return ret;
c->rbs_top = c->bsp; c->rbs_top = c->bsp;
c->pi.flags = 0; c->pi.flags = 0;
c->eh_args[0] = 0;
c->eh_args[1] = 0; for (i = 0; i < 4; ++i)
c->eh_args[2] = 0; {
c->eh_args[3] = 0; ret = ia64_get (c, IA64_REG_LOC (UNW_IA64_GR + 15 + i), &c->eh_args[i]);
if (ret < 0)
{
if (ret == -UNW_EBADREG)
c->eh_args[i] = 0;
else
return ret;
}
}
#ifdef IA64_UNW_SCRIPT_CACHE #ifdef IA64_UNW_SCRIPT_CACHE
c->hint = 0; c->hint = 0;
c->prev_script = 0; c->prev_script = 0;
#endif #endif
return ia64_get_frame_state (c); return ia64_get_proc_info (c);
} }
alias (ia64_init_remote, UNW_OBJ(init_remote))