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(_Uia64_install_context): Drop "loadrs" argument and adjust code accordingly.

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(Logical change 1.47)
This commit is contained in:
mostang.com!davidm 2003-02-14 06:25:36 +00:00
parent 508348e693
commit 03f6e9b004
1 changed files with 11 additions and 18 deletions
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29
src/ia64/_Uia64_install_context.S
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@ -30,8 +30,7 @@ WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
#ifndef UNW_REMOTE_ONLY
/* _Uia64_install_context (const cursor *c, long pri_unat, long *extra,
long loadrs_value)
/* _Uia64_install_context (const cursor *c, long pri_unat, long *extra)
Restores the machine-state represented by C and thereby resumes execution
in that frame. If the frame or one of its descendants was interrupted
@ -39,16 +38,15 @@ WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
Otherwise, only the preserved registers, the global-pointer (r1), and
the exception-arguments (r15-r18) are restored. */
.hidden _Uia64_install_context
#define pRet p6
#define pSig p7
.align 32
.hidden _Uia64_install_context
.global _Uia64_install_context
.proc _Uia64_install_context
_Uia64_install_context:
alloc r3 = ar.pfs, 6, 0, 3, 0
alloc r3 = ar.pfs, 3, 0, 0, 0
invala
add r2 = FR_LOC_OFF, in0
;;
@ -132,7 +130,7 @@ _Uia64_install_context:
;;
ld8 r8 = [r8] // r8 = sigcontext_loc
or r11 = in3, r10 // ar.rsc.loadrs = loadrs_value
and r11 = 0x1c, r10 // clear all but rsc.be and rsc.pl
add r2 = PFS_LOC_OFF, in0
ldf.fill f30 = [r30] // f30 restored (don't touch no more)
@ -151,7 +149,7 @@ _Uia64_install_context:
ld8 r14 = [r2], (B1_LOC_OFF - PFS_LOC_OFF) // r14 = pfs_loc
ld8 r15 = [r3], (B2_LOC_OFF - IP_OFF) // r15 = ip
and r11 = ~0x3, r11 // clear ar.rsc.mode
nop 0
;;
ld8 r16 = [r2], (B3_LOC_OFF - B1_LOC_OFF) // r16 = b1_loc
@ -229,33 +227,28 @@ _Uia64_install_context:
ld8 r28 = [r28] // r28 = rnat
mov.m ar.rsc = r11 // put RSE into enforced lazy mode
mov r2 = in2 // r2 = &extra[r15]
;;
alloc r3 = ar.pfs, 0, 0, 0, 0 // drop current frame for loadrs
(pRet) mov.m ar.fpsr = r27 // fpsr restored (don't touch no more)
mov.i ar.lc = r26 // lc restored (don't touch no more)
;;
loadrs // restore or drop dirty partition
loadrs // drop dirty partition
;;
mov.m ar.bspstore = r30 // restore register backing-store
add r3 = 8, r2 // r3 = &extra[r16]
add r3 = 8, in2 // r3 = &extra[r16]
;;
(pRet) mov.m ar.unat = r25 // unat restored (don't touch no more)
(pRet) mov.m ar.fpsr = r27 // fpsr restored (don't touch no more)
mov.m ar.rnat = r28
(pSig) br.cond.dpnt.many 1f
/****** Return via br.ret: */
ld8 r14 = [r14] // r14 = *pfs_loc
ld8 r15 = [r2], 16 // r15 restored (don't touch no more)
ld8 r15 = [in2], 16 // r15 restored (don't touch no more)
mov pr = r31, -1 // pr restored (don't touch no more)
;;
ld8 r16 = [r3], 16 // r16 restored (don't touch no more)
ld8 r17 = [r2] // r17 restored (don't touch no more)
ld8 r17 = [in2] // r17 restored (don't touch no more)
nop.i 0
;;
@ -263,7 +256,7 @@ _Uia64_install_context:
mov.m ar.rsc = r10 // restore original ar.rsc
mov sp = r29
nop.m 0
mov.m ar.unat = r25 // unat restored (don't touch no more)
mov.i ar.pfs = r14
br.ret.sptk.many rp
;;