diff options
Diffstat (limited to 'sysdeps/unix/sysv/linux/powerpc/powerpc64/swapcontext.S')
| -rw-r--r-- | sysdeps/unix/sysv/linux/powerpc/powerpc64/swapcontext.S | 490 |
1 files changed, 488 insertions, 2 deletions
diff --git a/sysdeps/unix/sysv/linux/powerpc/powerpc64/swapcontext.S b/sysdeps/unix/sysv/linux/powerpc/powerpc64/swapcontext.S index 653811bda2..ab6a6254f9 100644 --- a/sysdeps/unix/sysv/linux/powerpc/powerpc64/swapcontext.S +++ b/sysdeps/unix/sysv/linux/powerpc/powerpc64/swapcontext.S @@ -1,5 +1,5 @@ /* Save current context and install the given one. - Copyright (C) 2002 Free Software Foundation, Inc. + Copyright (C) 2002, 2004 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 @@ -18,6 +18,8 @@ 02111-1307 USA. */ #include <sysdep.h> +#include <rtld-global-offsets.h> +#include <shlib-compat.h> #include "kernel-features.h" #define __ASSEMBLY__ @@ -25,6 +27,266 @@ #include "ucontext_i.h" #include <asm/errno.h> +#if SHLIB_COMPAT (libc, GLIBC_2_3, GLIBC_2_3_4) +ENTRY(__novec_swapcontext) +#ifdef __ASSUME_NEW_RT_SIGRETURN_SYSCALL + std r0,(SIGCONTEXT_GP_REGS+(PT_R0*8))(r3) + std r1,(SIGCONTEXT_GP_REGS+(PT_R1*8))(r3) + mflr r0 + std r31,-8(1) + std r2,(SIGCONTEXT_GP_REGS+(PT_R2*8))(r3) + std r0,FRAME_LR_SAVE(r1) + std r0,(SIGCONTEXT_GP_REGS+(PT_LNK*8))(r3) + std r0,(SIGCONTEXT_GP_REGS+(PT_NIP*8))(r3) + stdu r1,-128(r1) + std r4,(SIGCONTEXT_GP_REGS+(PT_R4*8))(r3) + std r5,(SIGCONTEXT_GP_REGS+(PT_R5*8))(r3) + std r6,(SIGCONTEXT_GP_REGS+(PT_R6*8))(r3) + std r7,(SIGCONTEXT_GP_REGS+(PT_R7*8))(r3) + std r8,(SIGCONTEXT_GP_REGS+(PT_R8*8))(r3) + std r9,(SIGCONTEXT_GP_REGS+(PT_R9*8))(r3) + std r10,(SIGCONTEXT_GP_REGS+(PT_R10*8))(r3) + std r11,(SIGCONTEXT_GP_REGS+(PT_R11*8))(r3) + std r12,(SIGCONTEXT_GP_REGS+(PT_R12*8))(r3) + std r13,(SIGCONTEXT_GP_REGS+(PT_R13*8))(r3) + std r14,(SIGCONTEXT_GP_REGS+(PT_R14*8))(r3) + std r15,(SIGCONTEXT_GP_REGS+(PT_R15*8))(r3) + std r16,(SIGCONTEXT_GP_REGS+(PT_R16*8))(r3) + std r17,(SIGCONTEXT_GP_REGS+(PT_R17*8))(r3) + std r18,(SIGCONTEXT_GP_REGS+(PT_R18*8))(r3) + std r19,(SIGCONTEXT_GP_REGS+(PT_R19*8))(r3) + std r20,(SIGCONTEXT_GP_REGS+(PT_R20*8))(r3) + std r21,(SIGCONTEXT_GP_REGS+(PT_R21*8))(r3) + std r22,(SIGCONTEXT_GP_REGS+(PT_R22*8))(r3) + std r23,(SIGCONTEXT_GP_REGS+(PT_R23*8))(r3) + std r24,(SIGCONTEXT_GP_REGS+(PT_R24*8))(r3) + std r25,(SIGCONTEXT_GP_REGS+(PT_R25*8))(r3) + std r26,(SIGCONTEXT_GP_REGS+(PT_R26*8))(r3) + std r27,(SIGCONTEXT_GP_REGS+(PT_R27*8))(r3) + std r28,(SIGCONTEXT_GP_REGS+(PT_R28*8))(r3) + std r29,(SIGCONTEXT_GP_REGS+(PT_R29*8))(r3) + std r30,(SIGCONTEXT_GP_REGS+(PT_R30*8))(r3) + std r31,(SIGCONTEXT_GP_REGS+(PT_R31*8))(r3) + mfctr r0 + std r0,(SIGCONTEXT_GP_REGS+(PT_CTR*8))(r3) + mfxer r0 + std r0,(SIGCONTEXT_GP_REGS+(PT_XER*8))(r3) + mfcr r0 + std r0,(SIGCONTEXT_GP_REGS+(PT_CCR*8))(r3) + + /* Set the return value of swapcontext to "success". R3 is the only + register whose value is not preserved in the saved context. */ + li r0,0 + std r0,(SIGCONTEXT_GP_REGS+(PT_R3*8))(r3) + + /* Zero fill fields that can't be set in user state or are unused. */ + std r0,(SIGCONTEXT_GP_REGS+(PT_MSR*8))(r3) + std r0,(SIGCONTEXT_GP_REGS+(34*8))(r3) + std r0,(SIGCONTEXT_GP_REGS+(PT_SOFTE*8))(r3) + std r0,(SIGCONTEXT_GP_REGS+(40*8))(r3) + std r0,(SIGCONTEXT_GP_REGS+(41*8))(r3) + std r0,(SIGCONTEXT_GP_REGS+(42*8))(r3) + std r0,(SIGCONTEXT_GP_REGS+(PT_RESULT*8))(r3) + + /* Set the PT_REGS pointer to the address of sigcontext gp_regs + field. Struct pt_regs and elf_gregset_t are the same thing. + We kept the regs field for backwards compatibility with + libraries built before we extended sigcontext. */ + addi r0,r3,SIGCONTEXT_GP_REGS + std r0,SIGCONTEXT_PT_REGS(r3) + + stfd fp0,(SIGCONTEXT_FP_REGS+(PT_R0*8))(r3) + stfd fp1,(SIGCONTEXT_FP_REGS+(PT_R1*8))(r3) + stfd fp2,(SIGCONTEXT_FP_REGS+(PT_R2*8))(r3) + stfd fp3,(SIGCONTEXT_FP_REGS+(PT_R3*8))(r3) + stfd fp4,(SIGCONTEXT_FP_REGS+(PT_R4*8))(r3) + stfd fp5,(SIGCONTEXT_FP_REGS+(PT_R5*8))(r3) + stfd fp6,(SIGCONTEXT_FP_REGS+(PT_R6*8))(r3) + stfd fp7,(SIGCONTEXT_FP_REGS+(PT_R7*8))(r3) + stfd fp8,(SIGCONTEXT_FP_REGS+(PT_R8*8))(r3) + stfd fp9,(SIGCONTEXT_FP_REGS+(PT_R9*8))(r3) + stfd fp10,(SIGCONTEXT_FP_REGS+(PT_R10*8))(r3) + stfd fp11,(SIGCONTEXT_FP_REGS+(PT_R11*8))(r3) + stfd fp12,(SIGCONTEXT_FP_REGS+(PT_R12*8))(r3) + stfd fp13,(SIGCONTEXT_FP_REGS+(PT_R13*8))(r3) + stfd fp14,(SIGCONTEXT_FP_REGS+(PT_R14*8))(r3) + stfd fp15,(SIGCONTEXT_FP_REGS+(PT_R15*8))(r3) + stfd fp16,(SIGCONTEXT_FP_REGS+(PT_R16*8))(r3) + stfd fp17,(SIGCONTEXT_FP_REGS+(PT_R17*8))(r3) + stfd fp18,(SIGCONTEXT_FP_REGS+(PT_R18*8))(r3) + stfd fp19,(SIGCONTEXT_FP_REGS+(PT_R19*8))(r3) + stfd fp20,(SIGCONTEXT_FP_REGS+(PT_R20*8))(r3) + stfd fp21,(SIGCONTEXT_FP_REGS+(PT_R21*8))(r3) + stfd fp22,(SIGCONTEXT_FP_REGS+(PT_R22*8))(r3) + stfd fp23,(SIGCONTEXT_FP_REGS+(PT_R23*8))(r3) + stfd fp24,(SIGCONTEXT_FP_REGS+(PT_R24*8))(r3) + stfd fp25,(SIGCONTEXT_FP_REGS+(PT_R25*8))(r3) + stfd fp26,(SIGCONTEXT_FP_REGS+(PT_R26*8))(r3) + stfd fp27,(SIGCONTEXT_FP_REGS+(PT_R27*8))(r3) + stfd fp28,(SIGCONTEXT_FP_REGS+(PT_R28*8))(r3) + stfd fp29,(SIGCONTEXT_GP_REGS+(PT_R29*8))(r3) + mffs fp0 + stfd fp30,(SIGCONTEXT_FP_REGS+(PT_R30*8))(r3) + stfd fp31,(SIGCONTEXT_FP_REGS+(PT_R31*8))(r3) + stfd fp0,(SIGCONTEXT_FP_REGS+(32*8))(r3) + + mr r31,r4 + addi r5,r3,UCONTEXT_SIGMASK + addi r4,r4,UCONTEXT_SIGMASK + li r3,SIG_SETMASK + bl JUMPTARGET(sigprocmask) + nop + cmpdi r3,0 + bne L(nv_error_exit) + +/* + * If this new ucontext refers to the point where we were interrupted + * by a signal, we have to use the rt_sigreturn system call to + * return to the context so we get both LR and CTR restored. + * + * Otherwise, the context we are restoring is either just after + * a procedure call (getcontext/swapcontext) or at the beginning + * of a procedure call (makecontext), so we don't need to restore + * msr and ctr. We don't restore r13 since it will be used as + * the TLS pointer. */ + lwz r0,(SIGCONTEXT_GP_REGS+(PT_MSR*8))(r31) + cmpdi r0,0 + bne L(nv_do_sigret) + + lfd fp0,(SIGCONTEXT_FP_REGS+(32*8))(r31) + lfd fp31,(SIGCONTEXT_FP_REGS+(PT_R31*8))(r31) + lfd fp30,(SIGCONTEXT_FP_REGS+(PT_R30*8))(r31) + mtfsf 0xff,fp0 + lfd fp29,(SIGCONTEXT_FP_REGS+(PT_R29*8))(r31) + lfd fp28,(SIGCONTEXT_FP_REGS+(PT_R28*8))(r31) + lfd fp27,(SIGCONTEXT_FP_REGS+(PT_R27*8))(r31) + lfd fp26,(SIGCONTEXT_FP_REGS+(PT_R26*8))(r31) + lfd fp25,(SIGCONTEXT_FP_REGS+(PT_R25*8))(r31) + lfd fp24,(SIGCONTEXT_FP_REGS+(PT_R24*8))(r31) + lfd fp23,(SIGCONTEXT_FP_REGS+(PT_R23*8))(r31) + lfd fp22,(SIGCONTEXT_FP_REGS+(PT_R22*8))(r31) + lfd fp21,(SIGCONTEXT_FP_REGS+(PT_R21*8))(r31) + lfd fp20,(SIGCONTEXT_FP_REGS+(PT_R20*8))(r31) + lfd fp19,(SIGCONTEXT_FP_REGS+(PT_R19*8))(r31) + lfd fp18,(SIGCONTEXT_FP_REGS+(PT_R18*8))(r31) + lfd fp17,(SIGCONTEXT_FP_REGS+(PT_R17*8))(r31) + lfd fp16,(SIGCONTEXT_FP_REGS+(PT_R16*8))(r31) + lfd fp15,(SIGCONTEXT_FP_REGS+(PT_R15*8))(r31) + 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) + + 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) + mfcr r0 + 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) + 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 + +L(nv_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(nv_do_sigret): + mr r1,r3, + li r0,SYS_ify(rt_sigreturn) + sc + /* No return. */ +#else + /* If the kernel is not at least 2.4.21 then generate a ENOSYS stub. */ + mflr r0 + std r0,FRAME_LR_SAVE(r1) + stdu r1,-128(r1) + li r3,ENOSYS + bl JUMPTARGET(__syscall_error) + nop + li r3,-1 + ld r0,128+FRAME_LR_SAVE(r1) + addi r1,r1,128 + mtlr r0 + blr +#endif + +PSEUDO_END(__novec_swapcontext) + +compat_symbol (libc, __novec_swapcontext, swapcontext, GLIBC_2_3) + +#endif + + .section ".toc","aw" +.LC__dl_hwcap: +#ifdef SHARED + .tc _rtld_global[TC],_rtld_global +#else + .tc _dl_hwcap[TC],_dl_hwcap +#endif + .section ".text" + ENTRY(__swapcontext) #ifdef __ASSUME_NEW_RT_SIGRETURN_SYSCALL std r0,(SIGCONTEXT_GP_REGS+(PT_R0*8))(r3) @@ -126,6 +388,119 @@ ENTRY(__swapcontext) stfd fp30,(SIGCONTEXT_FP_REGS+(PT_R30*8))(r3) stfd fp31,(SIGCONTEXT_FP_REGS+(PT_R31*8))(r3) stfd fp0,(SIGCONTEXT_FP_REGS+(32*8))(r3) + + ld r8,.LC__dl_hwcap@toc(r2) + li r10,0 +#ifdef SHARED +/* Load _rtld-global._dl_hwcap. */ + ld r8,RTLD_GLOBAL_DL_HWCAP_OFFSET(r8) +#else + ld r8,0(r8) /* Load extern _dl_hwcap. */ +#endif + andis. r8,r8,(PPC_FEATURE_HAS_ALTIVEC >> 16) + beq L(has_no_vec) + + la r10,(SIGCONTEXT_V_RESERVE+8)(r3) + la r9,(SIGCONTEXT_V_RESERVE+24)(r3) + clrrdi r10,r10,4 + clrrdi r9,r9,4 + + stvx v0,0,r10 + stvx v1,0,r9 + addi r10,r10,32 + addi r9,r9,32 + + stvx v2,0,r10 + stvx v3,0,r9 + addi r10,r10,32 + addi r9,r9,32 + + stvx v4,0,r10 + stvx v5,0,r9 + addi r10,r10,32 + addi r9,r9,32 + + stvx v6,0,r10 + stvx v7,0,r9 + addi r10,r10,32 + addi r9,r9,32 + + stvx v8,0,r10 + stvx v9,0,r9 + addi r10,r10,32 + addi r9,r9,32 + + stvx v10,0,r10 + stvx v11,0,r9 + addi r10,r10,32 + addi r9,r9,32 + + stvx v12,0,r10 + stvx v13,0,r9 + addi r10,r10,32 + addi r9,r9,32 + + stvx v14,0,r10 + stvx v15,0,r9 + addi r10,r10,32 + addi r9,r9,32 + + stvx v16,0,r10 + stvx v17,0,r9 + addi r10,r10,32 + addi r9,r9,32 + + stvx v18,0,r10 + stvx v11,0,r9 + addi r19,r10,32 + addi r9,r9,32 + + stvx v20,0,r10 + stvx v21,0,r9 + addi r10,r10,32 + addi r9,r9,32 + + stvx v22,0,r10 + stvx v23,0,r9 + addi r10,r10,32 + addi r9,r9,32 + + stvx v24,0,r10 + stvx v25,0,r9 + addi r10,r10,32 + addi r9,r9,32 + + stvx v26,0,r10 + stvx v27,0,r9 + addi r10,r10,32 + addi r9,r9,32 + + stvx v28,0,r10 + stvx v29,0,r9 + addi r10,r10,32 + addi r9,r9,32 + + stvx v30,0,r10 + stvx v31,0,r9 + addi r10,r10,32 + addi r9,r9,32 + + stvx v10,0,r10 + stvx v11,0,r9 + addi r10,r10,32 + addi r9,r9,32 + + mfvscr v0 + mfspr r0,VRSAVE + stvx v0,0,r10 + stw r0,0(9) + +L(has_no_vec): +/* + Store either a NULL or a quadword aligned pointer to the Vector register + array into *v_regs. +*/ + std r10,(SIGCONTEXT_V_REGS_PTR)(r3) mr r31,r4 addi r5,r3,UCONTEXT_SIGMASK @@ -149,6 +524,117 @@ ENTRY(__swapcontext) lwz r0,(SIGCONTEXT_GP_REGS+(PT_MSR*8))(r31) cmpdi r0,0 bne L(do_sigret) + + ld r8,.LC__dl_hwcap@toc(r2) + ld r10,(SIGCONTEXT_V_REGS_PTR)(r31) +#ifdef SHARED +/* Load _rtld-global._dl_hwcap. */ + ld r8,RTLD_GLOBAL_DL_HWCAP_OFFSET(r8) +#else + ld r8,0(r8) /* Load extern _dl_hwcap. */ +#endif + andis. r8,r8,(PPC_FEATURE_HAS_ALTIVEC >> 16) + beq L(has_no_vec2) + + cmpdi r10,0 + beq L(has_no_vec2) + lwz r0,(33*16)(r10) + + li r9,(16*32) + mtspr VRSAVE,r0 + cmpwi r0,0 + beq L(has_no_vec2) + + lvx v19,r9,r10 + la r9,(16)(r10) + + lvx v0,0,r10 + lvx v1,0,r9 + addi r10,r10,32 + addi r9,r9,32 + + mtvscr v19 + lvx v2,0,r10 + lvx v3,0,r9 + addi r10,r10,32 + addi r9,r9,32 + + lvx v4,0,r10 + lvx v5,0,r9 + addi r10,r10,32 + addi r9,r9,32 + + lvx v6,0,r10 + lvx v7,0,r9 + addi r10,r10,32 + addi r9,r9,32 + + lvx v8,0,r10 + lvx v9,0,r9 + addi r10,r10,32 + addi r9,r9,32 + + lvx v10,0,r10 + lvx v11,0,r9 + addi r10,r10,32 + addi r9,r9,32 + + lvx v12,0,r10 + lvx v13,0,r9 + addi r10,r10,32 + addi r9,r9,32 + + lvx v14,0,r10 + lvx v15,0,r9 + addi r10,r10,32 + addi r9,r9,32 + + lvx v16,0,r10 + lvx v17,0,r9 + addi r10,r10,32 + addi r9,r9,32 + + lvx v18,0,r10 + lvx v11,0,r9 + addi r19,r10,32 + addi r9,r9,32 + + lvx v20,0,r10 + lvx v21,0,r9 + addi r10,r10,32 + addi r9,r9,32 + + lvx v22,0,r10 + lvx v23,0,r9 + addi r10,r10,32 + addi r9,r9,32 + + lvx v24,0,r10 + lvx v25,0,r9 + addi r10,r10,32 + addi r9,r9,32 + + lvx v26,0,r10 + lvx v27,0,r9 + addi r10,r10,32 + addi r9,r9,32 + + lvx v28,0,r10 + lvx v29,0,r9 + addi r10,r10,32 + addi r9,r9,32 + + lvx v30,0,r10 + lvx v31,0,r9 + addi r10,r10,32 + addi r9,r9,32 + + lvx v10,0,r10 + lvx v11,0,r9 + addi r10,r10,32 + addi r9,r9,32 + +L(has_no_vec2): lfd fp0,(SIGCONTEXT_FP_REGS+(32*8))(r31) lfd fp31,(SIGCONTEXT_FP_REGS+(PT_R31*8))(r31) @@ -271,4 +757,4 @@ L(do_sigret): PSEUDO_END(__swapcontext) -weak_alias(__swapcontext, swapcontext) +versioned_symbol (libc, __swapcontext, swapcontext, GLIBC_2_3_4) |