/* libunwind - a platform-independent unwind library
Copyright (C) 2001-2005 Hewlett-Packard Co
- Contributed by David Mosberger-Tang <davidm@hpl.hp.com>
+ Contributed by David Mosberger-Tang <davidm@hpl.hp.com>
This file is part of libunwind.
static inline int
linux_sigtramp (struct cursor *c, ia64_loc_t prev_cfm_loc,
- unw_word_t *num_regsp)
+ unw_word_t *num_regsp)
{
#if defined(UNW_LOCAL_ONLY) && !defined(__linux)
return -UNW_EINVAL;
int ret;
if ((ret = ia64_get (c, IA64_LOC_ADDR (c->sp + 0x10
- + LINUX_SIGFRAME_ARG2_OFF, 0),
- &sc_addr)) < 0)
+ + LINUX_SIGFRAME_ARG2_OFF, 0),
+ &sc_addr)) < 0)
return ret;
c->sigcontext_addr = sc_addr;
&& IA64_GET_ADDR (c->loc[IA64_REG_IP]) == sc_addr + LINUX_SC_BR_OFF + 8)
{
/* Linux kernels before 2.4.19 and 2.5.10 had buggy
- unwind info for sigtramp. Fix it up here. */
+ unwind info for sigtramp. Fix it up here. */
c->loc[IA64_REG_IP] = IA64_LOC_ADDR (sc_addr + LINUX_SC_IP_OFF, 0);
c->cfm_loc = IA64_LOC_ADDR (sc_addr + LINUX_SC_CFM_OFF, 0);
}
/* do what can't be described by unwind directives: */
c->loc[IA64_REG_PFS] = IA64_LOC_ADDR (sc_addr + LINUX_SC_AR_PFS_OFF, 0);
c->ec_loc = prev_cfm_loc;
- *num_regsp = c->cfm & 0x7f; /* size of frame */
+ *num_regsp = c->cfm & 0x7f; /* size of frame */
return 0;
#endif
}
static inline int
linux_interrupt (struct cursor *c, ia64_loc_t prev_cfm_loc,
- unw_word_t *num_regsp, int marker)
+ unw_word_t *num_regsp, int marker)
{
#if defined(UNW_LOCAL_ONLY) && !(defined(__linux) && defined(__KERNEL__))
return -UNW_EINVAL;
/* do what can't be described by unwind directives: */
if (marker == ABI_MARKER_OLD_LINUX_INTERRUPT)
- pfs_loc = IA64_LOC_ADDR (sc_addr + LINUX_OLD_PT_PFS_OFF, 0);
+ pfs_loc = IA64_LOC_ADDR (sc_addr + LINUX_OLD_PT_PFS_OFF, 0);
else
- pfs_loc = IA64_LOC_ADDR (sc_addr + LINUX_PT_PFS_OFF, 0);
+ pfs_loc = IA64_LOC_ADDR (sc_addr + LINUX_PT_PFS_OFF, 0);
c->loc[IA64_REG_PFS] = pfs_loc;
c->ec_loc = prev_cfm_loc;
- *num_regsp = num_regs; /* size of frame */
+ *num_regsp = num_regs; /* size of frame */
return 0;
#endif
}
static inline int
hpux_sigtramp (struct cursor *c, ia64_loc_t prev_cfm_loc,
- unw_word_t *num_regsp)
+ unw_word_t *num_regsp)
{
#if defined(UNW_LOCAL_ONLY) && !defined(__hpux)
return -UNW_EINVAL;
if (c->pi.flags & UNW_PI_FLAG_IA64_RBS_SWITCH)
{
/* Got ourselves a frame that has saved ar.bspstore, ar.bsp,
- and ar.rnat, so we're all set for rbs-switching: */
+ and ar.rnat, so we're all set for rbs-switching: */
if ((ret = ia64_get (c, c->loc[IA64_REG_BSP], &saved_bsp)) < 0
- || (ret = ia64_get (c, c->loc[IA64_REG_BSPSTORE], &saved_bspstore)))
- return ret;
+ || (ret = ia64_get (c, c->loc[IA64_REG_BSPSTORE], &saved_bspstore)))
+ return ret;
}
else if ((c->abi_marker == ABI_MARKER_LINUX_SIGTRAMP
- || c->abi_marker == ABI_MARKER_OLD_LINUX_SIGTRAMP)
- && !IA64_IS_REG_LOC (c->loc[IA64_REG_BSP])
- && (IA64_GET_ADDR (c->loc[IA64_REG_BSP])
- == c->sigcontext_addr + LINUX_SC_AR_BSP_OFF))
+ || c->abi_marker == ABI_MARKER_OLD_LINUX_SIGTRAMP)
+ && !IA64_IS_REG_LOC (c->loc[IA64_REG_BSP])
+ && (IA64_GET_ADDR (c->loc[IA64_REG_BSP])
+ == c->sigcontext_addr + LINUX_SC_AR_BSP_OFF))
{
/* When Linux delivers a signal on an alternate stack, it
- does things a bit differently from what the unwind
- conventions allow us to describe: instead of saving
- ar.rnat, ar.bsp, and ar.bspstore, it saves the former two
- plus the "loadrs" value. Because of this, we need to
- detect & record a potential rbs-area switch
- manually... */
+ does things a bit differently from what the unwind
+ conventions allow us to describe: instead of saving
+ ar.rnat, ar.bsp, and ar.bspstore, it saves the former two
+ plus the "loadrs" value. Because of this, we need to
+ detect & record a potential rbs-area switch
+ manually... */
/* If ar.bsp has been saved already AND the current bsp is
- not equal to the saved value, then we know for sure that
- we're past the point where the backing store has been
- switched (and before the point where it's restored). */
+ not equal to the saved value, then we know for sure that
+ we're past the point where the backing store has been
+ switched (and before the point where it's restored). */
if ((ret = ia64_get (c, IA64_LOC_ADDR (c->sigcontext_addr
- + LINUX_SC_AR_BSP_OFF, 0),
- &saved_bsp) < 0)
- || (ret = ia64_get (c, IA64_LOC_ADDR (c->sigcontext_addr
- + LINUX_SC_LOADRS_OFF, 0),
- &loadrs) < 0))
- return ret;
+ + LINUX_SC_AR_BSP_OFF, 0),
+ &saved_bsp) < 0)
+ || (ret = ia64_get (c, IA64_LOC_ADDR (c->sigcontext_addr
+ + LINUX_SC_LOADRS_OFF, 0),
+ &loadrs) < 0))
+ return ret;
loadrs >>= 16;
ndirty = rse_num_regs (c->bsp - loadrs, c->bsp);
saved_bspstore = rse_skip_regs (saved_bsp, -ndirty);
{
c->last_abi_marker = c->abi_marker;
switch (ia64_get_abi_marker (c))
- {
- case ABI_MARKER_LINUX_SIGTRAMP:
- case ABI_MARKER_OLD_LINUX_SIGTRAMP:
- ia64_set_abi (c, ABI_LINUX);
- if ((ret = linux_sigtramp (c, prev_cfm_loc, &num_regs)) < 0)
- return ret;
- break;
-
- case ABI_MARKER_OLD_LINUX_INTERRUPT:
- case ABI_MARKER_LINUX_INTERRUPT:
- ia64_set_abi (c, ABI_LINUX);
- if ((ret = linux_interrupt (c, prev_cfm_loc, &num_regs,
- c->abi_marker)) < 0)
- return ret;
- break;
-
- case ABI_MARKER_HP_UX_SIGTRAMP:
- ia64_set_abi (c, ABI_HPUX);
- if ((ret = hpux_sigtramp (c, prev_cfm_loc, &num_regs)) < 0)
- return ret;
- break;
-
- default:
- Debug (1, "unknown ABI marker: ABI=%u, context=%u\n",
- c->abi_marker >> 8, c->abi_marker & 0xff);
- return -UNW_EINVAL;
- }
+ {
+ case ABI_MARKER_LINUX_SIGTRAMP:
+ case ABI_MARKER_OLD_LINUX_SIGTRAMP:
+ ia64_set_abi (c, ABI_LINUX);
+ if ((ret = linux_sigtramp (c, prev_cfm_loc, &num_regs)) < 0)
+ return ret;
+ break;
+
+ case ABI_MARKER_OLD_LINUX_INTERRUPT:
+ case ABI_MARKER_LINUX_INTERRUPT:
+ ia64_set_abi (c, ABI_LINUX);
+ if ((ret = linux_interrupt (c, prev_cfm_loc, &num_regs,
+ c->abi_marker)) < 0)
+ return ret;
+ break;
+
+ case ABI_MARKER_HP_UX_SIGTRAMP:
+ ia64_set_abi (c, ABI_HPUX);
+ if ((ret = hpux_sigtramp (c, prev_cfm_loc, &num_regs)) < 0)
+ return ret;
+ break;
+
+ default:
+ Debug (1, "unknown ABI marker: ABI=%u, context=%u\n",
+ c->abi_marker >> 8, c->abi_marker & 0xff);
+ return -UNW_EINVAL;
+ }
Debug (12, "sigcontext_addr=%lx (ret=%d)\n",
- (unsigned long) c->sigcontext_addr, ret);
+ (unsigned long) c->sigcontext_addr, ret);
c->sigcontext_off = c->sigcontext_addr - c->sp;
/* update the IP cache: */
if ((ret = ia64_get (c, c->loc[IA64_REG_IP], &ip)) < 0)
- return ret;
+ return ret;
c->ip = ip;
if (ip == 0)
- /* end of frame-chain reached */
- return 0;
+ /* end of frame-chain reached */
+ return 0;
}
else
- num_regs = (c->cfm >> 7) & 0x7f; /* size of locals */
+ num_regs = (c->cfm >> 7) & 0x7f; /* size of locals */
if (!IA64_IS_NULL_LOC (c->loc[IA64_REG_BSP]))
{
ret = check_rbs_switch (c);
if (ret < 0)
- return ret;
+ return ret;
}
c->bsp = rse_skip_regs (c->bsp, -num_regs);
if (c->ip == prev_ip && c->sp == prev_sp && c->bsp == prev_bsp)
{
Dprintf ("%s: ip, sp, and bsp unchanged; stopping here (ip=0x%lx)\n",
- __FUNCTION__, (long) ip);
+ __FUNCTION__, (long) ip);
return -UNW_EBADFRAME;
}
projects / platform / upstream / libunwind.git / blobdiff