Messages in this thread | | | Date | Sat, 15 Mar 2003 22:24:38 +0100 | From | Andi Kleen <> | Subject | Re: Hammer thread fixes |
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On Sat, Mar 15, 2003 at 01:03:16PM -0800, Ulrich Drepper wrote: > The appended two fixes are necessary to get NPTL threads running on > hammer. The changes should be obvious. The exit_group syscall isn't > present at all so far and the r10 -> r8 register use is necessary > because syscall parameter #4 (in r10) is already used for the child_tid > parameter.
It's incorrect like I told you last time. arg 4 is in r10. Linus please don't apply.
The clone prototype is
int clone(int flags, unsigned long newsp, void *parent_tid, void *child_tid) ;
rax: __NR_clone rdi: flags rsi: newsp rdx: parent_tid r10: child_tid
See appendix A of the x86-64 ABI for details. The kernel ABI is different from the user space ABI because of the SYSCALL clobbers.
For exit_group please wait for my next merge.
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