mirror of
git://sourceware.org/git/glibc.git
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db8fed87d9
The attached patch fixes a glibc build failure with gcc 5 on powerpc64le caused by a recent change in gcc where the compiler defines the _ARCH_PWR6 macro when processing assembly files but doesn't invoke the assembler in the corresponding machine mode (unless it has been explicitly configured to target POWER 6 or later). A bug had been filed with gcc for this (65341) but was closed as won't fix. Glibc relies on the _ARCH_PWR6 macro in a few .S files to make use of Power ISA 2.5 instructions (specifically, the four-argument form of the mtfsf insn). A similar problem had occurred in the past (bug 10118) but the fix that was committed for it didn't anticipate this new problem.
514 lines
15 KiB
ArmAsm
514 lines
15 KiB
ArmAsm
/* Switch to context.
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Copyright (C) 2002-2015 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 <rtld-global-offsets.h>
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#include <shlib-compat.h>
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#define __ASSEMBLY__
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#include <asm/ptrace.h>
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#include "ucontext_i.h"
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#include <asm/errno.h>
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.section ".toc","aw"
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.LC__dl_hwcap:
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#ifdef SHARED
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.tc _rtld_global_ro[TC],_rtld_global_ro
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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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#if SHLIB_COMPAT (libc, GLIBC_2_3, GLIBC_2_3_4)
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ENTRY(__novec_setcontext)
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CALL_MCOUNT 1
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mflr r0
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std r31,-8(1)
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cfi_offset(r31,-8)
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std r0,FRAME_LR_SAVE(r1)
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cfi_offset (lr, FRAME_LR_SAVE)
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stdu r1,-128(r1)
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cfi_adjust_cfa_offset (128)
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mr r31,r3
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/*
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* If this ucontext refers to the point where we were interrupted
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* by a signal, we have to use the rt_sigreturn system call to
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* return to the context so we get both LR and CTR restored.
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*
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* Otherwise, the context we are restoring is either just after
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* a procedure call (getcontext/swapcontext) or at the beginning
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* of a procedure call (makecontext), so we don't need to restore
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* msr and ctr. We don't restore r13 since it will be used as
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* the TLS pointer. */
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ld r0,(SIGCONTEXT_GP_REGS+(PT_MSR*8))(r31)
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cmpdi r0,0
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bne L(nv_do_sigret)
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li r5,0
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addi r4,r3,UCONTEXT_SIGMASK
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li r3,SIG_SETMASK
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bl JUMPTARGET(__sigprocmask)
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nop
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cmpdi r3,0
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bne L(nv_error_exit)
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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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lfd fp0,(SIGCONTEXT_FP_REGS+(32*8))(r31)
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lfd fp31,(SIGCONTEXT_FP_REGS+(PT_R31*8))(r31)
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lfd fp30,(SIGCONTEXT_FP_REGS+(PT_R30*8))(r31)
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# ifdef _ARCH_PWR6
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/* Use the extended four-operand version of the mtfsf insn. */
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.machine push
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.machine "power6"
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mtfsf 0xff,fp0,1,0
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.machine pop
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# else
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/* Availability of DFP indicates a 64-bit FPSCR. */
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andi. r6,r5,PPC_FEATURE_HAS_DFP
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beq 5f
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/* Use the extended four-operand version of the mtfsf insn. */
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.machine push
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.machine "power6"
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mtfsf 0xff,fp0,1,0
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.machine pop
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b 6f
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/* Continue to operate on the FPSCR as if it were 32-bits. */
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5:
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mtfsf 0xff,fp0
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6:
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# endif /* _ARCH_PWR6 */
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lfd fp29,(SIGCONTEXT_FP_REGS+(PT_R29*8))(r31)
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lfd fp28,(SIGCONTEXT_FP_REGS+(PT_R28*8))(r31)
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lfd fp27,(SIGCONTEXT_FP_REGS+(PT_R27*8))(r31)
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lfd fp26,(SIGCONTEXT_FP_REGS+(PT_R26*8))(r31)
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lfd fp25,(SIGCONTEXT_FP_REGS+(PT_R25*8))(r31)
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lfd fp24,(SIGCONTEXT_FP_REGS+(PT_R24*8))(r31)
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lfd fp23,(SIGCONTEXT_FP_REGS+(PT_R23*8))(r31)
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lfd fp22,(SIGCONTEXT_FP_REGS+(PT_R22*8))(r31)
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lfd fp21,(SIGCONTEXT_FP_REGS+(PT_R21*8))(r31)
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lfd fp20,(SIGCONTEXT_FP_REGS+(PT_R20*8))(r31)
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lfd fp19,(SIGCONTEXT_FP_REGS+(PT_R19*8))(r31)
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lfd fp18,(SIGCONTEXT_FP_REGS+(PT_R18*8))(r31)
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lfd fp17,(SIGCONTEXT_FP_REGS+(PT_R17*8))(r31)
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lfd fp16,(SIGCONTEXT_FP_REGS+(PT_R16*8))(r31)
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lfd fp15,(SIGCONTEXT_FP_REGS+(PT_R15*8))(r31)
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lfd fp14,(SIGCONTEXT_FP_REGS+(PT_R14*8))(r31)
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lfd fp13,(SIGCONTEXT_FP_REGS+(PT_R13*8))(r31)
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lfd fp12,(SIGCONTEXT_FP_REGS+(PT_R12*8))(r31)
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lfd fp11,(SIGCONTEXT_FP_REGS+(PT_R11*8))(r31)
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lfd fp10,(SIGCONTEXT_FP_REGS+(PT_R10*8))(r31)
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lfd fp9,(SIGCONTEXT_FP_REGS+(PT_R9*8))(r31)
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lfd fp8,(SIGCONTEXT_FP_REGS+(PT_R8*8))(r31)
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lfd fp7,(SIGCONTEXT_FP_REGS+(PT_R7*8))(r31)
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lfd fp6,(SIGCONTEXT_FP_REGS+(PT_R6*8))(r31)
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lfd fp5,(SIGCONTEXT_FP_REGS+(PT_R5*8))(r31)
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lfd fp4,(SIGCONTEXT_FP_REGS+(PT_R4*8))(r31)
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lfd fp3,(SIGCONTEXT_FP_REGS+(PT_R3*8))(r31)
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lfd fp2,(SIGCONTEXT_FP_REGS+(PT_R2*8))(r31)
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lfd fp1,(SIGCONTEXT_FP_REGS+(PT_R1*8))(r31)
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lfd fp0,(SIGCONTEXT_FP_REGS+(PT_R0*8))(r31)
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/* End FDE now, because the unwind info would be wrong while
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we're reloading registers to switch to the new context. */
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cfi_endproc
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ld r0,(SIGCONTEXT_GP_REGS+(PT_LNK*8))(r31)
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ld r1,(SIGCONTEXT_GP_REGS+(PT_R1*8))(r31)
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mtlr r0
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ld r2,(SIGCONTEXT_GP_REGS+(PT_R2*8))(r31)
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ld r0,(SIGCONTEXT_GP_REGS+(PT_XER*8))(r31)
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ld r3,(SIGCONTEXT_GP_REGS+(PT_R3*8))(r31)
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mtxer r0
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ld r4,(SIGCONTEXT_GP_REGS+(PT_R4*8))(r31)
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ld r0,(SIGCONTEXT_GP_REGS+(PT_CCR*8))(r31)
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ld r5,(SIGCONTEXT_GP_REGS+(PT_R5*8))(r31)
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mtcr r0
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ld r6,(SIGCONTEXT_GP_REGS+(PT_R6*8))(r31)
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ld r7,(SIGCONTEXT_GP_REGS+(PT_R7*8))(r31)
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ld r8,(SIGCONTEXT_GP_REGS+(PT_R8*8))(r31)
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ld r9,(SIGCONTEXT_GP_REGS+(PT_R9*8))(r31)
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ld r10,(SIGCONTEXT_GP_REGS+(PT_R10*8))(r31)
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ld r11,(SIGCONTEXT_GP_REGS+(PT_R11*8))(r31)
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ld r12,(SIGCONTEXT_GP_REGS+(PT_R12*8))(r31)
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/* Don't reload the thread ID or TLS pointer (r13). */
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ld r14,(SIGCONTEXT_GP_REGS+(PT_R14*8))(r31)
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ld r15,(SIGCONTEXT_GP_REGS+(PT_R15*8))(r31)
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ld r16,(SIGCONTEXT_GP_REGS+(PT_R16*8))(r31)
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ld r17,(SIGCONTEXT_GP_REGS+(PT_R17*8))(r31)
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ld r18,(SIGCONTEXT_GP_REGS+(PT_R18*8))(r31)
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ld r19,(SIGCONTEXT_GP_REGS+(PT_R19*8))(r31)
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ld r20,(SIGCONTEXT_GP_REGS+(PT_R20*8))(r31)
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ld r21,(SIGCONTEXT_GP_REGS+(PT_R21*8))(r31)
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ld r22,(SIGCONTEXT_GP_REGS+(PT_R22*8))(r31)
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ld r23,(SIGCONTEXT_GP_REGS+(PT_R23*8))(r31)
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ld r24,(SIGCONTEXT_GP_REGS+(PT_R24*8))(r31)
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ld r25,(SIGCONTEXT_GP_REGS+(PT_R25*8))(r31)
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ld r26,(SIGCONTEXT_GP_REGS+(PT_R26*8))(r31)
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ld r27,(SIGCONTEXT_GP_REGS+(PT_R27*8))(r31)
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ld r28,(SIGCONTEXT_GP_REGS+(PT_R28*8))(r31)
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ld r29,(SIGCONTEXT_GP_REGS+(PT_R29*8))(r31)
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ld r30,(SIGCONTEXT_GP_REGS+(PT_R30*8))(r31)
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/* Now we branch to the "Next Instruction Pointer" from the saved
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context. With the powerpc64 instruction set there is no good way to
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do this (from user state) without clobbering either the LR or CTR.
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The makecontext and swapcontext functions depend on the callers
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LR being preserved so we use the CTR. */
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ld r0,(SIGCONTEXT_GP_REGS+(PT_NIP*8))(r31)
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mtctr r0
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ld r0,(SIGCONTEXT_GP_REGS+(PT_R0*8))(r31)
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ld r31,(SIGCONTEXT_GP_REGS+(PT_R31*8))(r31)
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bctr
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/* Re-establish FDE for the rest of the actual setcontext routine. */
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cfi_startproc
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cfi_offset (lr, FRAME_LR_SAVE)
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cfi_adjust_cfa_offset (128)
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L(nv_error_exit):
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ld r0,128+FRAME_LR_SAVE(r1)
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addi r1,r1,128
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mtlr r0
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ld r31,-8(r1)
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blr
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/* At this point we assume that the ucontext was created by a
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rt_signal and we should use rt_sigreturn to restore the original
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state. As of the 2.4.21 kernel the ucontext is the first thing
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(offset 0) in the rt_signal frame and rt_sigreturn expects the
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ucontext address in R1. Normally the rt-signal trampoline handles
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this by popping dummy frame before the rt_signal syscall. In our
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case the stack may not be in its original (signal handler return with
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R1 pointing at the dummy frame) state. We do have the ucontext
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address in R3, so simply copy R3 to R1 before the syscall. */
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L(nv_do_sigret):
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mr r1,r3,
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li r0,SYS_ify(rt_sigreturn)
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sc
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/* No return. */
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PSEUDO_END(__novec_setcontext)
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compat_symbol (libc, __novec_setcontext, setcontext, GLIBC_2_3)
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#endif
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.section ".text"
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.machine "altivec"
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ENTRY(__setcontext)
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CALL_MCOUNT 1
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mflr r0
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std r31,-8(1)
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cfi_offset(r31,-8)
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std r0,FRAME_LR_SAVE(r1)
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cfi_offset (lr, FRAME_LR_SAVE)
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stdu r1,-128(r1)
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cfi_adjust_cfa_offset (128)
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mr r31,r3
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/*
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* If this ucontext refers to the point where we were interrupted
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* by a signal, we have to use the rt_sigreturn system call to
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* return to the context so we get both LR and CTR restored.
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*
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* Otherwise, the context we are restoring is either just after
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* a procedure call (getcontext/swapcontext) or at the beginning
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* of a procedure call (makecontext), so we don't need to restore
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* msr and ctr. We don't restore r13 since it will be used as
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* the TLS pointer. */
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ld r0,(SIGCONTEXT_GP_REGS+(PT_MSR*8))(r31)
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cmpdi r0,0
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bne L(do_sigret)
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li r5,0
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addi r4,r3,UCONTEXT_SIGMASK
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li r3,SIG_SETMASK
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bl JUMPTARGET(__sigprocmask)
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nop
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cmpdi r3,0
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bne L(error_exit)
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ld r5,.LC__dl_hwcap@toc(r2)
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ld r10,(SIGCONTEXT_V_REGS_PTR)(r31)
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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. r6,r5,(PPC_FEATURE_HAS_ALTIVEC >> 16)
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beq L(has_no_vec)
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cmpdi r10,0
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beq L(has_no_vec)
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lwz r0,(33*16)(r10)
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li r9,(16*32)
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mtspr VRSAVE,r0
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cmpwi r0,0
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beq L(has_no_vec)
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lvx v19,r9,r10
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la r9,(16)(r10)
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lvx v0,0,r10
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lvx v1,0,r9
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addi r10,r10,32
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addi r9,r9,32
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mtvscr v19
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lvx v2,0,r10
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lvx v3,0,r9
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addi r10,r10,32
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addi r9,r9,32
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lvx v4,0,r10
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lvx v5,0,r9
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addi r10,r10,32
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addi r9,r9,32
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lvx v6,0,r10
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lvx v7,0,r9
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addi r10,r10,32
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addi r9,r9,32
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lvx v8,0,r10
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lvx v9,0,r9
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addi r10,r10,32
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addi r9,r9,32
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lvx v10,0,r10
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lvx v11,0,r9
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addi r10,r10,32
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addi r9,r9,32
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lvx v12,0,r10
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lvx v13,0,r9
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addi r10,r10,32
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addi r9,r9,32
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lvx v14,0,r10
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lvx v15,0,r9
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addi r10,r10,32
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addi r9,r9,32
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lvx v16,0,r10
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lvx v17,0,r9
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addi r10,r10,32
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addi r9,r9,32
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lvx v18,0,r10
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lvx v19,0,r9
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addi r10,r10,32
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addi r9,r9,32
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lvx v20,0,r10
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lvx v21,0,r9
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addi r10,r10,32
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addi r9,r9,32
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lvx v22,0,r10
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lvx v23,0,r9
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addi r10,r10,32
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addi r9,r9,32
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lvx v24,0,r10
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lvx v25,0,r9
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addi r10,r10,32
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addi r9,r9,32
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lvx v26,0,r10
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lvx v27,0,r9
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addi r10,r10,32
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addi r9,r9,32
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lvx v28,0,r10
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lvx v29,0,r9
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addi r10,r10,32
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addi r9,r9,32
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lvx v30,0,r10
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lvx v31,0,r9
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addi r10,r10,32
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addi r9,r9,32
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lvx v10,0,r10
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lvx v11,0,r9
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addi r10,r10,32
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addi r9,r9,32
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L(has_no_vec):
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lfd fp0,(SIGCONTEXT_FP_REGS+(32*8))(r31)
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lfd fp31,(SIGCONTEXT_FP_REGS+(PT_R31*8))(r31)
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lfd fp30,(SIGCONTEXT_FP_REGS+(PT_R30*8))(r31)
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# ifdef _ARCH_PWR6
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/* Use the extended four-operand version of the mtfsf insn. */
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.machine push
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.machine "power6"
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mtfsf 0xff,fp0,1,0
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.machine pop
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# else
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/* Availability of DFP indicates a 64-bit FPSCR. */
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andi. r6,r5,PPC_FEATURE_HAS_DFP
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beq 7f
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/* Use the extended four-operand version of the mtfsf insn. */
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.machine push
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.machine "power6"
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mtfsf 0xff,fp0,1,0
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.machine pop
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b 8f
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/* Continue to operate on the FPSCR as if it were 32-bits. */
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7:
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mtfsf 0xff,fp0
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8:
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# endif /* _ARCH_PWR6 */
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lfd fp29,(SIGCONTEXT_FP_REGS+(PT_R29*8))(r31)
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lfd fp28,(SIGCONTEXT_FP_REGS+(PT_R28*8))(r31)
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lfd fp27,(SIGCONTEXT_FP_REGS+(PT_R27*8))(r31)
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lfd fp26,(SIGCONTEXT_FP_REGS+(PT_R26*8))(r31)
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lfd fp25,(SIGCONTEXT_FP_REGS+(PT_R25*8))(r31)
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lfd fp24,(SIGCONTEXT_FP_REGS+(PT_R24*8))(r31)
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lfd fp23,(SIGCONTEXT_FP_REGS+(PT_R23*8))(r31)
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lfd fp22,(SIGCONTEXT_FP_REGS+(PT_R22*8))(r31)
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lfd fp21,(SIGCONTEXT_FP_REGS+(PT_R21*8))(r31)
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lfd fp20,(SIGCONTEXT_FP_REGS+(PT_R20*8))(r31)
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lfd fp19,(SIGCONTEXT_FP_REGS+(PT_R19*8))(r31)
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lfd fp18,(SIGCONTEXT_FP_REGS+(PT_R18*8))(r31)
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lfd fp17,(SIGCONTEXT_FP_REGS+(PT_R17*8))(r31)
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lfd fp16,(SIGCONTEXT_FP_REGS+(PT_R16*8))(r31)
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lfd fp15,(SIGCONTEXT_FP_REGS+(PT_R15*8))(r31)
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|
lfd fp14,(SIGCONTEXT_FP_REGS+(PT_R14*8))(r31)
|
|
lfd fp13,(SIGCONTEXT_FP_REGS+(PT_R13*8))(r31)
|
|
lfd fp12,(SIGCONTEXT_FP_REGS+(PT_R12*8))(r31)
|
|
lfd fp11,(SIGCONTEXT_FP_REGS+(PT_R11*8))(r31)
|
|
lfd fp10,(SIGCONTEXT_FP_REGS+(PT_R10*8))(r31)
|
|
lfd fp9,(SIGCONTEXT_FP_REGS+(PT_R9*8))(r31)
|
|
lfd fp8,(SIGCONTEXT_FP_REGS+(PT_R8*8))(r31)
|
|
lfd fp7,(SIGCONTEXT_FP_REGS+(PT_R7*8))(r31)
|
|
lfd fp6,(SIGCONTEXT_FP_REGS+(PT_R6*8))(r31)
|
|
lfd fp5,(SIGCONTEXT_FP_REGS+(PT_R5*8))(r31)
|
|
lfd fp4,(SIGCONTEXT_FP_REGS+(PT_R4*8))(r31)
|
|
lfd fp3,(SIGCONTEXT_FP_REGS+(PT_R3*8))(r31)
|
|
lfd fp2,(SIGCONTEXT_FP_REGS+(PT_R2*8))(r31)
|
|
lfd fp1,(SIGCONTEXT_FP_REGS+(PT_R1*8))(r31)
|
|
lfd fp0,(SIGCONTEXT_FP_REGS+(PT_R0*8))(r31)
|
|
|
|
/* End FDE now, because the unwind info would be wrong while
|
|
we're reloading registers to switch to the new context. */
|
|
cfi_endproc
|
|
|
|
ld r0,(SIGCONTEXT_GP_REGS+(PT_LNK*8))(r31)
|
|
ld r1,(SIGCONTEXT_GP_REGS+(PT_R1*8))(r31)
|
|
mtlr r0
|
|
ld r2,(SIGCONTEXT_GP_REGS+(PT_R2*8))(r31)
|
|
ld r0,(SIGCONTEXT_GP_REGS+(PT_XER*8))(r31)
|
|
ld r3,(SIGCONTEXT_GP_REGS+(PT_R3*8))(r31)
|
|
mtxer r0
|
|
ld r4,(SIGCONTEXT_GP_REGS+(PT_R4*8))(r31)
|
|
ld r0,(SIGCONTEXT_GP_REGS+(PT_CCR*8))(r31)
|
|
ld r5,(SIGCONTEXT_GP_REGS+(PT_R5*8))(r31)
|
|
ld r6,(SIGCONTEXT_GP_REGS+(PT_R6*8))(r31)
|
|
ld r7,(SIGCONTEXT_GP_REGS+(PT_R7*8))(r31)
|
|
ld r8,(SIGCONTEXT_GP_REGS+(PT_R8*8))(r31)
|
|
ld r9,(SIGCONTEXT_GP_REGS+(PT_R9*8))(r31)
|
|
mtcr r0
|
|
ld r10,(SIGCONTEXT_GP_REGS+(PT_R10*8))(r31)
|
|
ld r11,(SIGCONTEXT_GP_REGS+(PT_R11*8))(r31)
|
|
ld r12,(SIGCONTEXT_GP_REGS+(PT_R12*8))(r31)
|
|
/* Don't reload the thread ID or TLS pointer (r13). */
|
|
ld r14,(SIGCONTEXT_GP_REGS+(PT_R14*8))(r31)
|
|
ld r15,(SIGCONTEXT_GP_REGS+(PT_R15*8))(r31)
|
|
ld r16,(SIGCONTEXT_GP_REGS+(PT_R16*8))(r31)
|
|
ld r17,(SIGCONTEXT_GP_REGS+(PT_R17*8))(r31)
|
|
ld r18,(SIGCONTEXT_GP_REGS+(PT_R18*8))(r31)
|
|
ld r19,(SIGCONTEXT_GP_REGS+(PT_R19*8))(r31)
|
|
ld r20,(SIGCONTEXT_GP_REGS+(PT_R20*8))(r31)
|
|
ld r21,(SIGCONTEXT_GP_REGS+(PT_R21*8))(r31)
|
|
ld r22,(SIGCONTEXT_GP_REGS+(PT_R22*8))(r31)
|
|
ld r23,(SIGCONTEXT_GP_REGS+(PT_R23*8))(r31)
|
|
ld r24,(SIGCONTEXT_GP_REGS+(PT_R24*8))(r31)
|
|
ld r25,(SIGCONTEXT_GP_REGS+(PT_R25*8))(r31)
|
|
ld r26,(SIGCONTEXT_GP_REGS+(PT_R26*8))(r31)
|
|
ld r27,(SIGCONTEXT_GP_REGS+(PT_R27*8))(r31)
|
|
ld r28,(SIGCONTEXT_GP_REGS+(PT_R28*8))(r31)
|
|
ld r29,(SIGCONTEXT_GP_REGS+(PT_R29*8))(r31)
|
|
ld r30,(SIGCONTEXT_GP_REGS+(PT_R30*8))(r31)
|
|
|
|
/* Now we branch to the "Next Instruction Pointer" from the saved
|
|
context. With the powerpc64 instruction set there is no good way to
|
|
do this (from user state) without clobbering either the LR or CTR.
|
|
The makecontext and swapcontext functions depend on the callers
|
|
LR being preserved so we use the CTR. */
|
|
ld r0,(SIGCONTEXT_GP_REGS+(PT_NIP*8))(r31)
|
|
mtctr r0
|
|
ld r0,(SIGCONTEXT_GP_REGS+(PT_R0*8))(r31)
|
|
ld r31,(SIGCONTEXT_GP_REGS+(PT_R31*8))(r31)
|
|
bctr
|
|
|
|
/* Re-establish FDE for the rest of the actual setcontext routine. */
|
|
cfi_startproc
|
|
cfi_offset (lr, FRAME_LR_SAVE)
|
|
cfi_adjust_cfa_offset (128)
|
|
|
|
L(error_exit):
|
|
ld r0,128+FRAME_LR_SAVE(r1)
|
|
addi r1,r1,128
|
|
mtlr r0
|
|
ld r31,-8(r1)
|
|
blr
|
|
|
|
/* At this point we assume that the ucontext was created by a
|
|
rt_signal and we should use rt_sigreturn to restore the original
|
|
state. As of the 2.4.21 kernel the ucontext is the first thing
|
|
(offset 0) in the rt_signal frame and rt_sigreturn expects the
|
|
ucontext address in R1. Normally the rt-signal trampoline handles
|
|
this by popping dummy frame before the rt_signal syscall. In our
|
|
case the stack may not be in its original (signal handler return with
|
|
R1 pointing at the dummy frame) state. We do have the ucontext
|
|
address in R3, so simply copy R3 to R1 before the syscall. */
|
|
L(do_sigret):
|
|
mr r1,r3,
|
|
li r0,SYS_ify(rt_sigreturn)
|
|
sc
|
|
/* No return. */
|
|
|
|
PSEUDO_END(__setcontext)
|
|
|
|
versioned_symbol (libc, __setcontext, setcontext, GLIBC_2_3_4)
|