On Mon, Mar 23, 2015 at 02:11:45PM +0000, David Drysdale wrote: > On Sun, Mar 15, 2015 at 7:59 AM, Josh Triplett <josh@xxxxxxxxxxxxxxxx> wrote: > > diff --git a/arch/x86/ia32/ia32entry.S b/arch/x86/ia32/ia32entry.S > > index 0286735..ba28306 100644 > > --- a/arch/x86/ia32/ia32entry.S > > +++ b/arch/x86/ia32/ia32entry.S > > @@ -483,6 +483,7 @@ GLOBAL(\label) > > PTREGSCALL stub32_execveat, compat_sys_execveat > > PTREGSCALL stub32_fork, sys_fork > > PTREGSCALL stub32_vfork, sys_vfork > > + PTREGSCALL stub32_clone4, compat_sys_clone4 > > > > ALIGN > > GLOBAL(stub32_clone) > > diff --git a/arch/x86/kernel/entry_64.S b/arch/x86/kernel/entry_64.S > > index 1d74d16..ead143f 100644 > > --- a/arch/x86/kernel/entry_64.S > > +++ b/arch/x86/kernel/entry_64.S > > @@ -520,6 +520,7 @@ END(\label) > > FORK_LIKE clone > > FORK_LIKE fork > > FORK_LIKE vfork > > + FORK_LIKE clone4 > > FIXED_FRAME stub_iopl, sys_iopl > > > > ENTRY(stub_execve) > > diff --git a/arch/x86/syscalls/syscall_32.tbl b/arch/x86/syscalls/syscall_32.tbl > > index b3560ec..56fcc90 100644 > > --- a/arch/x86/syscalls/syscall_32.tbl > > +++ b/arch/x86/syscalls/syscall_32.tbl > > @@ -365,3 +365,4 @@ > > 356 i386 memfd_create sys_memfd_create > > 357 i386 bpf sys_bpf > > 358 i386 execveat sys_execveat stub32_execveat > > +359 i386 clone4 sys_clone4 stub32_clone4 > > diff --git a/arch/x86/syscalls/syscall_64.tbl b/arch/x86/syscalls/syscall_64.tbl > > index 8d656fb..af15b0f 100644 > > --- a/arch/x86/syscalls/syscall_64.tbl > > +++ b/arch/x86/syscalls/syscall_64.tbl > > @@ -329,6 +329,7 @@ > > 320 common kexec_file_load sys_kexec_file_load > > 321 common bpf sys_bpf > > 322 64 execveat stub_execveat > > +323 64 clone4 stub_clone4 > > > > # > > # x32-specific system call numbers start at 512 to avoid cache impact > > @@ -368,3 +369,4 @@ > > 543 x32 io_setup compat_sys_io_setup > > 544 x32 io_submit compat_sys_io_submit > > 545 x32 execveat stub_x32_execveat > > +546 x32 clone4 stub32_clone4 > > Doesn't this need an x32 specific wrapper (to ensure the full > set of registers are saved)? I'm not an x32 expert; I don't know how x32 interacts with pt_regs and compat syscalls. Could an x32 expert weigh in, please? - Josh Triplett -- To unsubscribe from this list: send the line "unsubscribe linux-api" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
