getcontext on Linux PPC64

[Steve Munroe]

Sergiy Kyrylkov wrote on 04/01/2004 01:04:21 PM:

>
> According to the output I get on YDL 3.0 with 2.6.4 ppc64 kernel it is
not
> the case on my machine (Apple G5):
> ...
> [sergiy at zeta _test]$ ./a.out
> error: Function not implemented
>
> Any suggestions?
>

They must have built the glibc on 2.4.19 kernel, It does not matter what
kernel you have now. It matters what they told glibc when they built it!

ENTRY(__getcontext)
#ifdef __ASSUME_NEW_RT_SIGRETURN_SYSCALL
  std  r0,(SIGCONTEXT_GP_REGS+(PT_R0*8))(r3)
  std  r1,(SIGCONTEXT_GP_REGS+(PT_R1*8))(r3)
  ....
#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
#endif

Steven J. Munroe
Linux on Power Toolchain Architect
IBM Corporation, Linux Technology Center


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