diff --git a/src/ia64/_Uia64_install_context.S b/src/ia64/_Uia64_install_context.S deleted file mode 100644 index cba7a356..00000000 --- a/src/ia64/_Uia64_install_context.S +++ /dev/null @@ -1,311 +0,0 @@ -/* libunwind - a platform-independent unwind library - Copyright (C) 2001-2003 Hewlett-Packard Co - Contributed by David Mosberger-Tang - -This file is part of libunwind. - -Permission is hereby granted, free of charge, to any person obtaining -a copy of this software and associated documentation files (the -"Software"), to deal in the Software without restriction, including -without limitation the rights to use, copy, modify, merge, publish, -distribute, sublicense, and/or sell copies of the Software, and to -permit persons to whom the Software is furnished to do so, subject to -the following conditions: - -The above copyright notice and this permission notice shall be -included in all copies or substantial portions of the Software. - -THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, -EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF -MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND -NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE -LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION -OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION -WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */ - -#include "ucontext_i.h" -#include "cursor_i.h" - -#define SYS_sigreturn 1181 - -#ifndef UNW_REMOTE_ONLY - -/* _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 - by a signal, all registers are restored (including the signal mask). - Otherwise, only the preserved registers, the global-pointer (r1), and - the exception-arguments (r15-r18) are restored. */ - -#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, 3, 0, 0, 0 - invala - add r2 = FR_LOC_OFF, in0 - ;; - - ld8 r16 = [r2], 8 // r16 = fr_loc[0] - mov.m r10 = ar.rsc // (ar.rsc: ~ 12 cycle latency) - add r3 = FR_LOC_OFF + 16, in0 - ;; - - ld8 r17 = [r2], 16 // r17 = fr_loc[1] - ld8 r18 = [r3], 16 // r18 = fr_loc[2] - and r16 = -8, r16 - ;; - - ld8 r19 = [r2], 16 // r19 = fr_loc[3] - ld8 r20 = [r3], 16 // r20 = fr_loc[4] - and r17 = -8, r17 - ;; - - ldf.fill f16 = [r16] // f16 restored (don't touch no more) - ldf.fill f17 = [r17] // f17 restored (don't touch no more) - and r18 = -8, r18 - - ld8 r21 = [r2], 16 // r21 = fr_loc[5] - ld8 r22 = [r3], 16 // r22 = fr_loc[6] - and r19 = -8, r19 - ;; - - ldf.fill f18 = [r18] // f18 restored (don't touch no more) - ldf.fill f19 = [r19] // f19 restored (don't touch no more) - and r20 = -8, r20 - - ld8 r23 = [r2], 16 // r23 = fr_loc[7] - ld8 r24 = [r3], 16 // r24 = fr_loc[8] - and r21 = -8, r21 - ;; - - ldf.fill f20 = [r20] // f20 restored (don't touch no more) - ldf.fill f21 = [r21] // f21 restored (don't touch no more) - and r22 = -8, r22 - - ld8 r25 = [r2], 16 // r25 = fr_loc[9] - ld8 r26 = [r3], 16 // r26 = fr_loc[10] - and r23 = -8, r23 - ;; - - ldf.fill f22 = [r22] // f22 restored (don't touch no more) - ldf.fill f23 = [r23] // f23 restored (don't touch no more) - and r24 = -8, r24 - - ld8 r27 = [r2], 16 // r27 = fr_loc[11] - ld8 r28 = [r3], 16 // r28 = fr_loc[12] - and r25 = -8, r25 - ;; - - ldf.fill f24 = [r24] // f24 restored (don't touch no more) - ldf.fill f25 = [r25] // f25 restored (don't touch no more) - and r26 = -8, r26 - - ld8 r29 = [r2], 16 // r29 = fr_loc[13] - ld8 r30 = [r3], 16 // r30 = fr_loc[14] - and r27 = -8, r27 - ;; - - ldf.fill f26 = [r26] // f26 restored (don't touch no more) - ldf.fill f27 = [r27] // f27 restored (don't touch no more) - and r28 = -8, r28 - - ld8 r31 = [r2] // r31 = fr_loc[15] - mov.m ar.unat = in1 - and r29 = -8, r29 - ;; - - ldf.fill f28 = [r28] // f28 restored (don't touch no more) - ldf.fill f29 = [r29] // f29 restored (don't touch no more) - and r30 = -8, r30 - - ld8 r1 = [in2], 8 // gp restored (don't touch no more) - add r8 = SIGCONTEXT_LOC_OFF, in0 - and r31 = -8, r31 - ;; - - ld8 r8 = [r8] // r8 = sigcontext_loc - 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) - ldf.fill f31 = [r31] // f31 restored (don't touch no more) - add r3 = 16, in2 - ;; - - ld8.fill r4 = [in2], 16 // r4 restored (don't touch no more) - ld8.fill r5 = [r3], 16 // r5 restored (don't touch no more) - cmp.eq pRet, pSig = r0, r8 // sigcontext_loc == NULL? - ;; - ld8.fill r6 = [in2], 16 // r6 restored (don't touch no more) - ld8.fill r7 = [r3] // r7 restored (don't touch no more) - add r3 = IP_OFF, in0 - ;; - - ld8 r14 = [r2], (B1_LOC_OFF - PFS_LOC_OFF) // r14 = pfs_loc - ld8 r15 = [r3], (B2_LOC_OFF - IP_OFF) // r15 = ip - nop 0 - ;; - - ld8 r16 = [r2], (B3_LOC_OFF - B1_LOC_OFF) // r16 = b1_loc - ld8 r17= [r3], (B4_LOC_OFF - B2_LOC_OFF) // r17 = b2_loc - and r14 = -8, r14 - ;; - - ld8 r18 = [r2], (B5_LOC_OFF - B3_LOC_OFF) // r18 = b3_loc - ld8 r19 = [r3], (F2_LOC_OFF - B4_LOC_OFF) // r19 = b4_loc - and r16 = -8, r16 - ;; - - ld8 r20 = [r2], (F3_LOC_OFF - B5_LOC_OFF) // r20 = b5_loc - ld8 r21 = [r3], (F4_LOC_OFF - F2_LOC_OFF) // r21 = f2_loc - and r17 = -8, r17 - ;; - - ld8 r16 = [r16] // r16 = *b1_loc - ld8 r17 = [r17] // r17 = *b2_loc - and r18 = -8, r18 - - ld8 r22 = [r2], (F5_LOC_OFF - F3_LOC_OFF) // r21 = f3_loc - ld8 r23 = [r3], (UNAT_LOC_OFF - F4_LOC_OFF) // r22 = f4_loc - and r19 = -8, r19 - ;; - - ld8 r18 = [r18] // r18 = *b3_loc - ld8 r19 = [r19] // r19 = *b4_loc - and r20 = -8, r20 - - ld8 r24 = [r2], (LC_LOC_OFF - F5_LOC_OFF) // r24 = f5_loc - ld8 r25 = [r3], (FPSR_LOC_OFF - UNAT_LOC_OFF) // r25 = unat_loc - and r21 = -8, r21 - ;; - - and r22 = -8, r22 - and r23 = -8, r23 - and r24 = -8, r24 - - ld8 r20 = [r20] // r20 = *b5_loc - ldf.fill f2 = [r21] // f2 restored (don't touch no more) - mov b1 = r16 // b1 restored (don't touch no more) - ;; - - ldf.fill f3 = [r22] // f3 restored (don't touch no more) - ldf.fill f4 = [r23] // f4 restored (don't touch no more) - mov b2 = r17 // b2 restored (don't touch no more) - - ld8 r26 = [r2], (RNAT_LOC_OFF - LC_LOC_OFF) // r26 = lc_loc - ld8 r27 = [r3], (PSP_OFF - FPSR_LOC_OFF) // r27 = fpsr_loc - and r25 = -8, r25 - ;; - - ldf.fill f5 = [r24] // f5 restored (don't touch no more) -(pRet) ld8 r25 = [r25] // r25 = *unat_loc - mov b3 = r18 // b3 restored (don't touch no more) - - ld8 r28 = [r2], (BSP_OFF - RNAT_LOC_OFF) // r28 = rnat_loc - ld8 r29 = [r3], (PR_OFF - PSP_OFF) // r29 = sp - mov b4 = r19 // b4 restored (don't touch no more) - - and r26 = -8, r26 - and r27 = -8, r27 - mov b5 = r20 // b5 restored (don't touch no more) - ;; - - ld8 r26 = [r26] // r26 = *lc_loc - ld8 r27 = [r27] // r27 = *fpsr_loc - and r28 = -8, r28 - - ld8 r30 = [r2] // r30 = bsp - ld8 r31 = [r3] // r31 = pr - mov rp = r15 - ;; - - ld8 r28 = [r28] // r28 = rnat - mov.m ar.rsc = r11 // put RSE into enforced lazy mode - mov.i ar.lc = r26 // lc restored (don't touch no more) - ;; - - loadrs // drop dirty partition - ;; - mov.m ar.bspstore = r30 // restore register backing-store - add r3 = 8, in2 // r3 = &extra[r16] - ;; - -(pRet) mov.m ar.fpsr = r27 // fpsr restored (don't touch no more) - mov.m ar.rnat = r28 -(pSig) br.cond.dpnt.many .next - -/****** Return via br.ret: */ - - ld8 r14 = [r14] // r14 = *pfs_loc - 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 = [in2] // r17 restored (don't touch no more) - nop.i 0 - ;; - - ld8 r18 = [r3] // r18 restored (don't touch no more) - mov.m ar.rsc = r10 // restore original ar.rsc - mov sp = r29 - - mov.m ar.unat = r25 // unat restored (don't touch no more) - mov.i ar.pfs = r14 - br.ret.sptk.many rp - ;; - -/****** Return via sigreturn(): */ - -.next: mov.m ar.rsc = r10 // restore original ar.rsc - add r2 = (SC_FR + 6*16), r8 - add r3 = (SC_FR + 7*16), r8 - ;; - - ldf.fill f6 = [r2], 32 - ldf.fill f7 = [r3], 32 - nop 0 - ;; - - ldf.fill f8 = [r2], 32 - ldf.fill f9 = [r3], 32 - nop 0 - ;; - - ldf.fill f10 = [r2], 32 - ldf.fill f11 = [r3], 32 - nop 0 - ;; - - ldf.fill f12 = [r2], 32 - ldf.fill f13 = [r3], 32 - nop 0 - ;; - - ldf.fill f14 = [r2], 32 - ldf.fill f15 = [r3], 32 - mov sp = r29 - ;; - -#if NEW_SYSCALL - add r2 = -8, tp;; - ld8 r2 = [r2] - mov r15 = SYS_sigreturn - mov b7 = r2 - br.call.sptk.many b6 = b7 - ;; -#else - mov r15 = SYS_sigreturn - break 0x100000 -#endif - break 0 // bug out if sigreturn() returns - - .endp _Uia64_install_context - -#endif /* !UNW_REMOTE_ONLY */