uprobe: Change uretprobe syscall scope and number

After discussing with Arnd [1] it's preferable to change uretprobe
syscall number to 467 to omit the merge conflict with xattrat syscalls.

Also changing the ABI to 'common' which will ease up the global
scripts/syscall.tbl management. One consequence is we generate uretprobe
syscall numbers for ABIs that do not support uretprobe syscall, but the
syscall still returns -ENOSYS when called in that ABI.

[1] https://lore.kernel.org/lkml/784a34e5-4654-44c9-9c07-f9f4ffd952a0@app.fastmail.com/

Link: https://lore.kernel.org/all/[email protected]/
Fixes: 190fec72df4a ("uprobe: Wire up uretprobe system call")
Suggested-by: Arnd Bergmann <[email protected]>
Signed-off-by: Jiri Olsa <[email protected]>
Acked-by: Andrii Nakryiko <[email protected]>
Signed-off-by: Masami Hiramatsu (Google) <[email protected]>

diff --git a/arch/x86/entry/syscalls/syscall_64.tbl b/arch/x86/entry/syscalls/syscall_64.tbl
index 6452c2ec469aa9cb009d1bf2cdcaf8c8ab6e0982..dabf1982de6d4ef9ec394ccc3c7fa44605dcb0da 100644 (file)
--- a/arch/x86/entry/syscalls/syscall_64.tbl
+++ b/arch/x86/entry/syscalls/syscall_64.tbl
@@ -384,7 +384,7 @@
 460    common  lsm_set_self_attr       sys_lsm_set_self_attr
 461    common  lsm_list_modules        sys_lsm_list_modules
 462    common  mseal                   sys_mseal
-463    64      uretprobe               sys_uretprobe
+467    common  uretprobe               sys_uretprobe
 
 #
 # Due to a historical design error, certain syscalls are numbered differently