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authorDominik Brodowski <linux@dominikbrodowski.net>2018-04-09 12:51:43 +0200
committerIngo Molnar <mingo@kernel.org>2018-04-09 16:47:28 +0200
commit5ac9efa3c50d7caff9f3933bb8a3ad1139d92d92 (patch)
tree8911252894d4f412bf6e2f1f1b4378a9f366d966 /scripts
parente145242ea0df6b7d28fd7186e61d6840fa4bb06e (diff)
downloadlinux-stericsson-5ac9efa3c50d7caff9f3933bb8a3ad1139d92d92.tar.gz
syscalls/core, syscalls/x86: Clean up compat syscall stub naming convention
Tidy the naming convention for compat syscall subs. Hints which describe the purpose of the stub go in front and receive a double underscore to denote that they are generated on-the-fly by the COMPAT_SYSCALL_DEFINEx() macro. For the generic case, this means: t kernel_waitid # common C function (see kernel/exit.c) __do_compat_sys_waitid # inlined helper doing the actual work # (takes original parameters as declared) T __se_compat_sys_waitid # sign-extending C function calling inlined # helper (takes parameters of type long, # casts them to unsigned long and then to # the declared type) T compat_sys_waitid # alias to __se_compat_sys_waitid() # (taking parameters as declared), to # be included in syscall table For x86, the naming is as follows: t kernel_waitid # common C function (see kernel/exit.c) __do_compat_sys_waitid # inlined helper doing the actual work # (takes original parameters as declared) t __se_compat_sys_waitid # sign-extending C function calling inlined # helper (takes parameters of type long, # casts them to unsigned long and then to # the declared type) T __ia32_compat_sys_waitid # IA32_EMULATION 32-bit-ptregs -> C stub, # calls __se_compat_sys_waitid(); to be # included in syscall table T __x32_compat_sys_waitid # x32 64-bit-ptregs -> C stub, calls # __se_compat_sys_waitid(); to be included # in syscall table If only one of IA32_EMULATION and x32 is enabled, __se_compat_sys_waitid() may be inlined into the stub __{ia32,x32}_compat_sys_waitid(). Suggested-by: Ingo Molnar <mingo@kernel.org> Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net> Cc: Al Viro <viro@zeniv.linux.org.uk> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Andy Lutomirski <luto@kernel.org> Cc: Borislav Petkov <bp@alien8.de> Cc: Brian Gerst <brgerst@gmail.com> Cc: Denys Vlasenko <dvlasenk@redhat.com> Cc: Josh Poimboeuf <jpoimboe@redhat.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Link: http://lkml.kernel.org/r/20180409105145.5364-3-linux@dominikbrodowski.net Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'scripts')
-rwxr-xr-xscripts/bloat-o-meter2
1 files changed, 1 insertions, 1 deletions
diff --git a/scripts/bloat-o-meter b/scripts/bloat-o-meter
index ce129e61cc65..a923f05edb36 100755
--- a/scripts/bloat-o-meter
+++ b/scripts/bloat-o-meter
@@ -31,7 +31,7 @@ def getsizes(file, format):
# strip generated symbols
if name.startswith("__mod_"): continue
if name.startswith("__se_sys"): continue
- if name.startswith("compat_SyS_"): continue
+ if name.startswith("__se_compat_sys"): continue
if name == "linux_banner": continue
# statics and some other optimizations adds random .NUMBER
name = re_NUMBER.sub('', name)