diff options
Diffstat (limited to 'sysdeps/unix/sysv/linux/powerpc/powerpc64/swapcontext.S')
| -rw-r--r-- | sysdeps/unix/sysv/linux/powerpc/powerpc64/swapcontext.S | 18 |
1 files changed, 17 insertions, 1 deletions
diff --git a/sysdeps/unix/sysv/linux/powerpc/powerpc64/swapcontext.S b/sysdeps/unix/sysv/linux/powerpc/powerpc64/swapcontext.S index 23422fb948..b1bcd44af1 100644 --- a/sysdeps/unix/sysv/linux/powerpc/powerpc64/swapcontext.S +++ b/sysdeps/unix/sysv/linux/powerpc/powerpc64/swapcontext.S @@ -22,8 +22,10 @@ #define __ASSEMBLY__ #include <asm/ptrace.h> #include "ucontext_i.h" +#include <asm/errno.h> ENTRY(__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 @@ -128,7 +130,7 @@ ENTRY(__swapcontext) addi r5,r3,UCONTEXT_SIGMASK addi r4,r4,UCONTEXT_SIGMASK li r3,SIG_SETMASK - bl .sigprocmask + bl JUMPTARGET(sigprocmask) nop cmpdi r3,0 bne L(error_exit) @@ -251,6 +253,20 @@ L(do_sigret): 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(__swapcontext) |