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eb5ad6b9bc
This patch add static probes for setjmp/longjmp in the way gdb expects,fixing the gdb.base/longjmp.exp gdb testcases. It changes the symbol_name and use macros to to avoid change the probe names and ending up adding more logic on GDB (since with the expected name GDB work seamlessly).
184 lines
4.8 KiB
ArmAsm
184 lines
4.8 KiB
ArmAsm
/* longjmp for PowerPC64.
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Copyright (C) 1995-2013 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; if not, see
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<http://www.gnu.org/licenses/>. */
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#include <sysdep.h>
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#include <stap-probe.h>
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#define _ASM
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#define _SETJMP_H
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#ifdef __NO_VMX__
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# include <novmxsetjmp.h>
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#else
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# include <jmpbuf-offsets.h>
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#endif
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#ifndef __NO_VMX__
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.section ".toc","aw"
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.LC__dl_hwcap:
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# ifdef SHARED
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# ifdef IS_IN_rtld
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/* Inside ld.so we use the local alias to avoid runtime GOT
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relocations. */
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.tc _rtld_local_ro[TC],_rtld_local_ro
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# else
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.tc _rtld_global_ro[TC],_rtld_global_ro
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# endif
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# else
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.tc _dl_hwcap[TC],_dl_hwcap
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# endif
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.section ".text"
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#endif
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.machine "altivec"
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ENTRY (__longjmp)
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CALL_MCOUNT 2
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#ifndef __NO_VMX__
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ld r5,.LC__dl_hwcap@toc(r2)
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# ifdef SHARED
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/* Load _rtld-global._dl_hwcap. */
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ld r5,RTLD_GLOBAL_RO_DL_HWCAP_OFFSET(r5)
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# else
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ld r5,0(r5) /* Load extern _dl_hwcap. */
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# endif
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andis. r5,r5,(PPC_FEATURE_HAS_ALTIVEC >> 16)
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beq L(no_vmx)
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la r5,((JB_VRS)*8)(3)
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andi. r6,r5,0xf
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lwz r0,((JB_VRSAVE)*8)(3) /* 32-bit VRSAVE. */
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mtspr VRSAVE,r0
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beq+ L(aligned_restore_vmx)
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addi r6,r5,16
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lvsl v0,0,r5
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lvx v1,0,r5
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addi r5,r5,32
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lvx v21,0,r6
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vperm v20,v1,v21,v0
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# define load_misaligned_vmx_lo_loaded(loadvr,lovr,shiftvr,loadgpr,addgpr) \
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addi addgpr,addgpr,32; \
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lvx lovr,0,loadgpr; \
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vperm loadvr,loadvr,lovr,shiftvr;
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load_misaligned_vmx_lo_loaded(v21,v22,v0,r5,r6)
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load_misaligned_vmx_lo_loaded(v22,v23,v0,r6,r5)
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load_misaligned_vmx_lo_loaded(v23,v24,v0,r5,r6)
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load_misaligned_vmx_lo_loaded(v24,v25,v0,r6,r5)
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load_misaligned_vmx_lo_loaded(v25,v26,v0,r5,r6)
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load_misaligned_vmx_lo_loaded(v26,v27,v0,r6,r5)
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load_misaligned_vmx_lo_loaded(v27,v28,v0,r5,r6)
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load_misaligned_vmx_lo_loaded(v28,v29,v0,r6,r5)
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load_misaligned_vmx_lo_loaded(v29,v30,v0,r5,r6)
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load_misaligned_vmx_lo_loaded(v30,v31,v0,r6,r5)
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lvx v1,0,r5
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vperm v31,v31,v1,v0
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b L(no_vmx)
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L(aligned_restore_vmx):
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addi r6,r5,16
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lvx v20,0,r5
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addi r5,r5,32
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lvx v21,0,r6
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addi r6,r6,32
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lvx v22,0,r5
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addi r5,r5,32
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lvx v23,0,r6
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addi r6,r6,32
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lvx v24,0,r5
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addi r5,r5,32
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lvx v25,0,r6
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addi r6,r6,32
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lvx v26,0,r5
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addi r5,r5,32
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lvx v27,0,r6
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addi r6,r6,32
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lvx v28,0,r5
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addi r5,r5,32
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lvx v29,0,r6
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addi r6,r6,32
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lvx v30,0,r5
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lvx v31,0,r6
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L(no_vmx):
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#endif
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#if defined PTR_DEMANGLE || defined CHECK_SP
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ld r22,(JB_GPR1*8)(r3)
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#else
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ld r1,(JB_GPR1*8)(r3)
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#endif
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#ifdef PTR_DEMANGLE
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# ifdef CHECK_SP
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PTR_DEMANGLE3 (r22, r22, r25)
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# else
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PTR_DEMANGLE3 (r1, r22, r25)
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# endif
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#endif
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#ifdef CHECK_SP
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CHECK_SP (r22)
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mr r1,r22
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#endif
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ld r2,(JB_GPR2*8)(r3)
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ld r0,(JB_LR*8)(r3)
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ld r14,((JB_GPRS+0)*8)(r3)
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lfd fp14,((JB_FPRS+0)*8)(r3)
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#if defined SHARED && !defined IS_IN_rtld
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std r2,FRAME_TOC_SAVE(r1) /* Restore the callers TOC save area. */
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#endif
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ld r15,((JB_GPRS+1)*8)(r3)
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lfd fp15,((JB_FPRS+1)*8)(r3)
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ld r16,((JB_GPRS+2)*8)(r3)
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lfd fp16,((JB_FPRS+2)*8)(r3)
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ld r17,((JB_GPRS+3)*8)(r3)
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lfd fp17,((JB_FPRS+3)*8)(r3)
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ld r18,((JB_GPRS+4)*8)(r3)
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lfd fp18,((JB_FPRS+4)*8)(r3)
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ld r19,((JB_GPRS+5)*8)(r3)
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lfd fp19,((JB_FPRS+5)*8)(r3)
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ld r20,((JB_GPRS+6)*8)(r3)
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lfd fp20,((JB_FPRS+6)*8)(r3)
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#ifdef PTR_DEMANGLE
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PTR_DEMANGLE2 (r0, r25)
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#endif
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/* longjmp/longjmp_target probe expects longjmp first argument (8@3),
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second argument (-4@4), and target address (8@0), respectively. */
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LIBC_PROBE (longjmp, 3, 8@3, -4@4, 8@0)
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mtlr r0
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/* std r2,FRAME_TOC_SAVE(r1) Restore the TOC save area. */
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ld r21,((JB_GPRS+7)*8)(r3)
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lfd fp21,((JB_FPRS+7)*8)(r3)
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ld r22,((JB_GPRS+8)*8)(r3)
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lfd fp22,((JB_FPRS+8)*8)(r3)
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lwz r5,((JB_CR*8)+4)(r3) /* 32-bit CR. */
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ld r23,((JB_GPRS+9)*8)(r3)
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lfd fp23,((JB_FPRS+9)*8)(r3)
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ld r24,((JB_GPRS+10)*8)(r3)
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lfd fp24,((JB_FPRS+10)*8)(r3)
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ld r25,((JB_GPRS+11)*8)(r3)
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lfd fp25,((JB_FPRS+11)*8)(r3)
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mtcrf 0xFF,r5
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ld r26,((JB_GPRS+12)*8)(r3)
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lfd fp26,((JB_FPRS+12)*8)(r3)
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ld r27,((JB_GPRS+13)*8)(r3)
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lfd fp27,((JB_FPRS+13)*8)(r3)
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ld r28,((JB_GPRS+14)*8)(r3)
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lfd fp28,((JB_FPRS+14)*8)(r3)
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ld r29,((JB_GPRS+15)*8)(r3)
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lfd fp29,((JB_FPRS+15)*8)(r3)
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ld r30,((JB_GPRS+16)*8)(r3)
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lfd fp30,((JB_FPRS+16)*8)(r3)
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ld r31,((JB_GPRS+17)*8)(r3)
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lfd fp31,((JB_FPRS+17)*8)(r3)
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LIBC_PROBE (longjmp_target, 3, 8@3, -4@4, 8@0)
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mr r3,r4
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blr
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END (__longjmp)
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