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(linux_interrupt): Add "marker" argument. Support both old and new

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Linux kernel "struct pt_regs" layout.
(update_frame_state): Handle ABI_MARKER_OLD_LINUX_SIGTRAMP and
	ABI_MARKRE_OLD_LINUX_INTERRUPT.  Cast values of type unw_word_t
	to (unsigned long) before printing them.

(Logical change 1.91)
This commit is contained in:
hp.com!davidm 2003-07-08 22:29:34 +00:00
parent 3053ee9de1
commit f3b8566331
1 changed files with 13 additions and 5 deletions
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18
src/ia64/Gstep-ia64.c
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@ -60,7 +60,7 @@ linux_sigtramp (struct cursor *c, unw_word_t *num_regsp)
}
static inline int
linux_interrupt (struct cursor *c, unw_word_t *num_regsp)
linux_interrupt (struct cursor *c, unw_word_t *num_regsp, int marker)
{
#if defined(UNW_LOCAL_ONLY)
/* Perhaps libunwind will some day become the Linux kernel unwinder.
@ -69,6 +69,7 @@ linux_interrupt (struct cursor *c, unw_word_t *num_regsp)
return -UNW_EINVAL;
#else
unw_word_t sc_addr, num_regs;
ia64_loc_t pfs_loc;
sc_addr = c->sigcontext_addr = c->sp + 0x10;
@ -78,7 +79,11 @@ linux_interrupt (struct cursor *c, unw_word_t *num_regsp)
num_regs = 0;
/* do what can't be described by unwind directives: */
c->loc[IA64_REG_PFS] = IA64_LOC_ADDR (sc_addr + LINUX_PT_PFS_OFF, 0);
if (marker == ABI_MARKER_OLD_LINUX_INTERRUPT)
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);
c->loc[IA64_REG_PFS] = pfs_loc;
*num_regsp = num_regs; /* size of frame */
return 0;
#endif
@ -174,7 +179,8 @@ check_rbs_switch (struct cursor *c)
|| (ret = ia64_get (c, c->loc[IA64_REG_BSPSTORE], &saved_bspstore)))
return ret;
}
else if (c->abi_marker == ABI_MARKER_LINUX_SIGTRAMP
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))
@ -250,14 +256,16 @@ update_frame_state (struct cursor *c)
switch (c->abi_marker)
{
case ABI_MARKER_LINUX_SIGTRAMP:
case ABI_MARKER_OLD_LINUX_SIGTRAMP:
c->as->abi = ABI_LINUX;
if ((ret = linux_sigtramp (c, &num_regs)) < 0)
return ret;
break;
case ABI_MARKER_OLD_LINUX_INTERRUPT:
case ABI_MARKER_LINUX_INTERRUPT:
c->as->abi = ABI_LINUX;
if ((ret = linux_interrupt (c, &num_regs)) < 0)
if ((ret = linux_interrupt (c, &num_regs, c->abi_marker)) < 0)
return ret;
break;
@ -273,7 +281,7 @@ update_frame_state (struct cursor *c)
return -UNW_EINVAL;
}
debug (100, "%s: sigcontext_addr=%lx (ret=%d)\n",
__FUNCTION__, c->sigcontext_addr, ret);
__FUNCTION__, (unsigned long) c->sigcontext_addr, ret);
c->sigcontext_off = c->sigcontext_addr - c->sp;