mirror of
https://sourceware.org/git/glibc.git
synced 2024-12-11 22:00:08 +00:00
179 lines
4.7 KiB
ArmAsm
179 lines
4.7 KiB
ArmAsm
/* longjmp for PowerPC.
|
|
Copyright (C) 1995-2015 Free Software Foundation, Inc.
|
|
This file is part of the GNU C Library.
|
|
|
|
The GNU C Library is free software; you can redistribute it and/or
|
|
modify it under the terms of the GNU Lesser General Public
|
|
License as published by the Free Software Foundation; either
|
|
version 2.1 of the License, or (at your option) any later version.
|
|
|
|
The GNU C Library is distributed in the hope that it will be useful,
|
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
Lesser General Public License for more details.
|
|
|
|
You should have received a copy of the GNU Lesser General Public
|
|
License along with the GNU C Library; if not, see
|
|
<http://www.gnu.org/licenses/>. */
|
|
|
|
#include <sysdep.h>
|
|
#include <stap-probe.h>
|
|
#define _ASM
|
|
#ifdef __NO_VMX__
|
|
# include <novmxsetjmp.h>
|
|
#else
|
|
# include <jmpbuf-offsets.h>
|
|
#endif
|
|
|
|
.machine "altivec"
|
|
ENTRY (__longjmp_symbol)
|
|
#ifndef __NO_VMX__
|
|
# ifdef PIC
|
|
mflr r6
|
|
cfi_register (lr,r6)
|
|
SETUP_GOT_ACCESS(r5,got_label)
|
|
addis r5,r5,_GLOBAL_OFFSET_TABLE_-got_label@ha
|
|
addi r5,r5,_GLOBAL_OFFSET_TABLE_-got_label@l
|
|
# ifdef SHARED
|
|
# if IS_IN (rtld)
|
|
/* Inside ld.so we use the local alias to avoid runtime GOT
|
|
relocations. */
|
|
lwz r5,_rtld_local_ro@got(r5)
|
|
# else
|
|
lwz r5,_rtld_global_ro@got(r5)
|
|
# endif
|
|
mtlr r6
|
|
cfi_same_value (lr)
|
|
lwz r5,RTLD_GLOBAL_RO_DL_HWCAP_OFFSET+LOWORD(r5)
|
|
# else
|
|
lwz r5,_dl_hwcap@got(r5)
|
|
mtlr r6
|
|
cfi_same_value (lr)
|
|
lwz r5,LOWORD(r5)
|
|
# endif
|
|
# else
|
|
lis r5,(_dl_hwcap+LOWORD)@ha
|
|
lwz r5,(_dl_hwcap+LOWORD)@l(r5)
|
|
# endif
|
|
andis. r5,r5,(PPC_FEATURE_HAS_ALTIVEC >> 16)
|
|
beq L(no_vmx)
|
|
la r5,((JB_VRS)*4)(3)
|
|
andi. r6,r5,0xf
|
|
lwz r0,((JB_VRSAVE)*4)(3)
|
|
mtspr VRSAVE,r0
|
|
beq+ L(aligned_restore_vmx)
|
|
addi r6,r5,16
|
|
lvsl v0,0,r5
|
|
lvx v1,0,r5
|
|
addi r5,r5,32
|
|
lvx v21,0,r6
|
|
vperm v20,v1,v21,v0
|
|
# define load_misaligned_vmx_lo_loaded(loadvr,lovr,shiftvr,loadgpr,addgpr) \
|
|
addi addgpr,addgpr,32; \
|
|
lvx lovr,0,loadgpr; \
|
|
vperm loadvr,loadvr,lovr,shiftvr;
|
|
load_misaligned_vmx_lo_loaded(v21,v22,v0,r5,r6)
|
|
load_misaligned_vmx_lo_loaded(v22,v23,v0,r6,r5)
|
|
load_misaligned_vmx_lo_loaded(v23,v24,v0,r5,r6)
|
|
load_misaligned_vmx_lo_loaded(v24,v25,v0,r6,r5)
|
|
load_misaligned_vmx_lo_loaded(v25,v26,v0,r5,r6)
|
|
load_misaligned_vmx_lo_loaded(v26,v27,v0,r6,r5)
|
|
load_misaligned_vmx_lo_loaded(v27,v28,v0,r5,r6)
|
|
load_misaligned_vmx_lo_loaded(v28,v29,v0,r6,r5)
|
|
load_misaligned_vmx_lo_loaded(v29,v30,v0,r5,r6)
|
|
load_misaligned_vmx_lo_loaded(v30,v31,v0,r6,r5)
|
|
lvx v1,0,r5
|
|
vperm v31,v31,v1,v0
|
|
b L(no_vmx)
|
|
L(aligned_restore_vmx):
|
|
addi r6,r5,16
|
|
lvx v20,0,r5
|
|
addi r5,r5,32
|
|
lvx v21,0,r6
|
|
addi r6,r6,32
|
|
lvx v22,0,r5
|
|
addi r5,r5,32
|
|
lvx v23,0,r6
|
|
addi r6,r6,32
|
|
lvx v24,0,r5
|
|
addi r5,r5,32
|
|
lvx v25,0,r6
|
|
addi r6,r6,32
|
|
lvx v26,0,r5
|
|
addi r5,r5,32
|
|
lvx v27,0,r6
|
|
addi r6,r6,32
|
|
lvx v28,0,r5
|
|
addi r5,r5,32
|
|
lvx v29,0,r6
|
|
addi r6,r6,32
|
|
lvx v30,0,r5
|
|
lvx v31,0,r6
|
|
L(no_vmx):
|
|
#endif
|
|
#if defined PTR_DEMANGLE || defined CHECK_SP
|
|
lwz r24,(JB_GPR1*4)(r3)
|
|
# ifdef CHECK_SP
|
|
# ifdef PTR_DEMANGLE
|
|
PTR_DEMANGLE3 (r24, r24, r25)
|
|
# endif
|
|
CHECK_SP (r24)
|
|
mr r1,r24
|
|
# endif
|
|
#else
|
|
lwz r1,(JB_GPR1*4)(r3)
|
|
#endif
|
|
lwz r0,(JB_LR*4)(r3)
|
|
lwz r14,((JB_GPRS+0)*4)(r3)
|
|
lfd fp14,((JB_FPRS+0*2)*4)(r3)
|
|
lwz r15,((JB_GPRS+1)*4)(r3)
|
|
lfd fp15,((JB_FPRS+1*2)*4)(r3)
|
|
lwz r16,((JB_GPRS+2)*4)(r3)
|
|
lfd fp16,((JB_FPRS+2*2)*4)(r3)
|
|
lwz r17,((JB_GPRS+3)*4)(r3)
|
|
lfd fp17,((JB_FPRS+3*2)*4)(r3)
|
|
lwz r18,((JB_GPRS+4)*4)(r3)
|
|
lfd fp18,((JB_FPRS+4*2)*4)(r3)
|
|
lwz r19,((JB_GPRS+5)*4)(r3)
|
|
lfd fp19,((JB_FPRS+5*2)*4)(r3)
|
|
lwz r20,((JB_GPRS+6)*4)(r3)
|
|
lfd fp20,((JB_FPRS+6*2)*4)(r3)
|
|
#ifdef PTR_DEMANGLE
|
|
# ifndef CHECK_SP
|
|
PTR_DEMANGLE3 (r1, r24, r25)
|
|
# endif
|
|
PTR_DEMANGLE2 (r0, r25)
|
|
#endif
|
|
/* longjmp/longjmp_target probe expects longjmp first argument (4@3),
|
|
second argument (-4@4), and target address (4@0), respectively. */
|
|
LIBC_PROBE (longjmp, 3, 4@3, -4@4, 4@0)
|
|
mtlr r0
|
|
lwz r21,((JB_GPRS+7)*4)(r3)
|
|
lfd fp21,((JB_FPRS+7*2)*4)(r3)
|
|
lwz r22,((JB_GPRS+8)*4)(r3)
|
|
lfd fp22,((JB_FPRS+8*2)*4)(r3)
|
|
lwz r5,(JB_CR*4)(r3)
|
|
lwz r23,((JB_GPRS+9)*4)(r3)
|
|
lfd fp23,((JB_FPRS+9*2)*4)(r3)
|
|
lwz r24,((JB_GPRS+10)*4)(r3)
|
|
lfd fp24,((JB_FPRS+10*2)*4)(r3)
|
|
lwz r25,((JB_GPRS+11)*4)(r3)
|
|
lfd fp25,((JB_FPRS+11*2)*4)(r3)
|
|
mtcrf 0xFF,r5
|
|
lwz r26,((JB_GPRS+12)*4)(r3)
|
|
lfd fp26,((JB_FPRS+12*2)*4)(r3)
|
|
lwz r27,((JB_GPRS+13)*4)(r3)
|
|
lfd fp27,((JB_FPRS+13*2)*4)(r3)
|
|
lwz r28,((JB_GPRS+14)*4)(r3)
|
|
lfd fp28,((JB_FPRS+14*2)*4)(r3)
|
|
lwz r29,((JB_GPRS+15)*4)(r3)
|
|
lfd fp29,((JB_FPRS+15*2)*4)(r3)
|
|
lwz r30,((JB_GPRS+16)*4)(r3)
|
|
lfd fp30,((JB_FPRS+16*2)*4)(r3)
|
|
lwz r31,((JB_GPRS+17)*4)(r3)
|
|
lfd fp31,((JB_FPRS+17*2)*4)(r3)
|
|
LIBC_PROBE (longjmp_target, 3, 4@3, -4@4, 4@0)
|
|
mr r3,r4
|
|
blr
|
|
END (__longjmp_symbol)
|