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am 24e1dd80: am 4eaa1e1e: Merge "x86_64: add new __NR_arch_prctl syscall"

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* commit '24e1dd8016eeaaa6ef3646cbb143de1506e733e8':
  x86_64: add new __NR_arch_prctl syscall
This commit is contained in:
Elliott Hughes 2013-10-01 14:04:19 -07:00 committed by Android Git Automerger
commit 211fd4f963
3 changed files with 19 additions and 0 deletions
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1
libc/SYSCALLS.TXT
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@ -94,6 +94,7 @@ int chroot(const char*) all
# IMPORTANT: Even though <sys/prctl.h> declares prctl(int, ...), the syscall stub must take 6 arguments
# to match the kernel implementation.
int prctl(int option, unsigned int arg2, unsigned int arg3, unsigned int arg4, unsigned int arg5) all
long arch_prctl(int, unsigned long) x86_64
int capget(cap_user_header_t header, cap_user_data_t data) all
int capset(cap_user_header_t header, const cap_user_data_t data) all
int sigaltstack(const stack_t*, stack_t*) all

1
libc/arch-x86_64/syscalls.mk
View file

@ -41,6 +41,7 @@ syscall_src += arch-x86_64/syscalls/vfork.S
syscall_src += arch-x86_64/syscalls/setregid.S
syscall_src += arch-x86_64/syscalls/chroot.S
syscall_src += arch-x86_64/syscalls/prctl.S
syscall_src += arch-x86_64/syscalls/arch_prctl.S
syscall_src += arch-x86_64/syscalls/capget.S
syscall_src += arch-x86_64/syscalls/capset.S
syscall_src += arch-x86_64/syscalls/sigaltstack.S

17
libc/arch-x86_64/syscalls/arch_prctl.S Normal file
View file

@ -0,0 +1,17 @@
/* autogenerated by gensyscalls.py */
#include <asm/unistd.h>
#include <linux/err.h>
#include <machine/asm.h>
ENTRY(arch_prctl)
movl $__NR_arch_prctl, %eax
syscall
cmpq $-MAX_ERRNO, %rax
jb 1f
negl %eax
movl %eax, %edi
call __set_errno
orq $-1, %rax
1:
ret
END(arch_prctl)