/* longjmp for PowerPC.
- Copyright (C) 1995-99, 2000, 2003-2005, 2006 Free Software Foundation, Inc.
+ Copyright (C) 1995-2019 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
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, write to the Free
- Software Foundation, Inc., 1 Franklin Street, Fifth Floor, Boston MA
- 02110-1301 USA. */
+ License along with the GNU C Library; if not, see
+ <https://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
-#include <bp-sym.h>
-#include <bp-asm.h>
.machine "altivec"
-ENTRY (BP_SYM (__longjmp))
- CHECK_BOUNDS_BOTH_WIDE_LIT (r3, r8, r9, JB_SIZE)
+ENTRY (__longjmp_symbol)
#ifndef __NO_VMX__
# ifdef PIC
mflr r6
cfi_register (lr,r6)
-# ifdef HAVE_ASM_PPC_REL16
- bcl 20,31,1f
-1: mflr r5
- addis r5,r5,_GLOBAL_OFFSET_TABLE_-1b@ha
- addi r5,r5,_GLOBAL_OFFSET_TABLE_-1b@l
-# else
- bl _GLOBAL_OFFSET_TABLE_@local-4
- mflr r5
-# endif
+ 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(r5)
+ lwz r5,RTLD_GLOBAL_RO_DL_HWCAP_OFFSET+LOWORD(r5)
# else
lwz r5,_dl_hwcap@got(r5)
mtlr r6
cfi_same_value (lr)
- lwz r5,0(r5)
+ lwz r5,LOWORD(r5)
# endif
# else
- lis r5,_dl_hwcap@ha
- lwz r5,_dl_hwcap@l(r5)
+ 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)
andi. r6,r5,0xf
lwz r0,((JB_VRSAVE)*4)(3)
mtspr VRSAVE,r0
- beq+ aligned_restore_vmx
+ beq+ L(aligned_restore_vmx)
addi r6,r5,16
lvsl v0,0,r5
lvx v1,0,r5
lvx v1,0,r5
vperm v31,v31,v1,v0
b L(no_vmx)
-aligned_restore_vmx:
+L(aligned_restore_vmx):
addi r6,r5,16
lvx v20,0,r5
addi r5,r5,32
lvx v31,0,r6
L(no_vmx):
#endif
-#ifdef PTR_DEMANGLE
+#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 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 r0,(JB_CR*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,r0
+ 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 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 (BP_SYM (__longjmp))
+END (__longjmp_symbol)
projects / thirdparty / glibc.git / blobdiff