m2-internship/libunwind-eh_elf
1
0
Fork 0
mirror of https://github.com/tobast/libunwind-eh_elf.git synced 2024-12-23 20:03:43 +01:00
Code Issues Releases Activity

(inlined_uc_addr): New function.

Browse source 
(uc_addr): Moved to here from Ginit-ia64.c and added a special
	case when the register is constant.
(IA64_REG_LOC): Use uc_addr() instead of tdep_uc_addr().
(IA64_REG_NAT_LOC): Likewise.
(IA64_FPREG_LOC): Likewise.

(Logical change 1.186)
This commit is contained in:
mostang.com!davidm 2004-03-20 09:54:28 +00:00
parent bd286e3260
commit 76b4736bde
1 changed files with 70 additions and 6 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

76
src/ia64/unwind_i.h
View file

@ -48,6 +48,72 @@ WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
#include "tdep.h"
#if !defined(HAVE_SYS_UC_ACCESS_H) && !defined(UNW_REMOTE_ONLY)
static inline ALWAYS_INLINE void *
inlined_uc_addr (ucontext_t *uc, int reg, uint8_t *nat_bitnr)
{
unw_word_t reg_addr;
void *addr;
switch (reg)
{
case UNW_IA64_GR + 0: addr = &unw.r0; break;
case UNW_IA64_NAT + 0: addr = &unw.r0; break;
case UNW_IA64_IP: addr = &uc->uc_mcontext.sc_br[0]; break;
case UNW_IA64_CFM: addr = &uc->uc_mcontext.sc_ar_pfs; break;
case UNW_IA64_AR_RNAT: addr = &uc->uc_mcontext.sc_ar_rnat; break;
case UNW_IA64_AR_UNAT: addr = &uc->uc_mcontext.sc_ar_unat; break;
case UNW_IA64_AR_LC: addr = &uc->uc_mcontext.sc_ar_lc; break;
case UNW_IA64_AR_FPSR: addr = &uc->uc_mcontext.sc_ar_fpsr; break;
case UNW_IA64_PR: addr = &uc->uc_mcontext.sc_pr; break;
/* This may look confusing, but it's correct: AR_BSPSTORE needs
to return the address past the last word written, which is
stored in sc_ar_bsp. On the other hand, AR_BSP needs to
return the address that was in ar.bsp at the time the context
was captured. As described in unw_init_local(), sc_ar_bsp is
(ab-)used for this purpose. */
case UNW_IA64_AR_BSP: addr = &uc->uc_mcontext.sc_rbs_base; break;
case UNW_IA64_AR_BSPSTORE: addr = &uc->uc_mcontext.sc_ar_bsp; break;
case UNW_IA64_GR + 4 ... UNW_IA64_GR + 7:
case UNW_IA64_GR + 12:
addr = &uc->uc_mcontext.sc_gr[reg - UNW_IA64_GR];
break;
case UNW_IA64_NAT + 4 ... UNW_IA64_NAT + 7:
case UNW_IA64_NAT + 12:
addr = &uc->uc_mcontext.sc_nat;
reg_addr = (unw_word_t) &uc->uc_mcontext.sc_gr[reg - UNW_IA64_NAT];
*nat_bitnr = reg - UNW_IA64_NAT;
break;
case UNW_IA64_BR + 1 ... UNW_IA64_BR + 5:
addr = &uc->uc_mcontext.sc_br[reg - UNW_IA64_BR];
break;
case UNW_IA64_FR+ 2 ... UNW_IA64_FR+ 5:
case UNW_IA64_FR+16 ... UNW_IA64_FR+31:
addr = &uc->uc_mcontext.sc_fr[reg - UNW_IA64_FR];
break;
default:
addr = NULL;
}
return addr;
}
static inline void *
uc_addr (ucontext_t *uc, int reg, uint8_t *nat_bitnr)
{
if (__builtin_constant_p (reg))
return inlined_uc_addr (uc, reg, nat_bitnr);
else
return tdep_uc_addr (uc, reg, nat_bitnr);
}
#endif /* !defined(HAVE_SYS_UC_ACCESS_H) && !defined(UNW_REMOTE_ONLY) */
/* Bits 0 and 1 of a 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. */
@ -56,7 +122,6 @@ WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
#define IA64_LOC_TYPE_MEMSTK_NAT (1 << 1)
#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)
@ -70,11 +135,10 @@ WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
#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, \
NULL))
#define IA64_REG_NAT_LOC(c,r,n) ((unw_word_t) tdep_uc_addr((c)->as_arg, r, n))
#define IA64_REG_LOC(c,r) ((unw_word_t) uc_addr((c)->as_arg, r, NULL))
#define IA64_REG_NAT_LOC(c,r,n) ((unw_word_t) uc_addr((c)->as_arg, r, n))
#define IA64_FPREG_LOC(c,r) \
((unw_word_t) tdep_uc_addr((c)->as_arg, (r), NULL) | IA64_LOC_TYPE_FP)
((unw_word_t) uc_addr((c)->as_arg, (r), NULL) | IA64_LOC_TYPE_FP)
# define ia64_find_proc_info(c,ip,n) \
tdep_find_proc_info(unw_local_addr_space, (ip), &(c)->pi, (n), \
@ -82,7 +146,7 @@ WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
# define ia64_put_unwind_info(c, pi) do { ; } while (0)
/* Note: the register accessors (ia64_{get,set}{,fp}()) must check for
NULL locations because tdep_uc_addr() returns NULL for unsaved
NULL locations because uc_addr() returns NULL for unsaved
registers. */
static inline int