tags, powerpc: Update tags.sh to support _GLOBAL symbols

On PowerPC we use _GLOBAL throughout the assembly to define symbols, but
currently these symbols are missing from the tags generated with
ARCH=powerpc make tags. This patch modifies the tags.sh script to
recognise _GLOBAL(.*) so that these symbols will be in the tags.

This is almost (but not quite) PowerPC specific and this change should
not affect anyone else:

$ git grep -E '^_GLOBAL\(([^)]*)\).*' |sed 's/^\([^/]*\/[^/]*\)\/.*$/\1/'|uniq -c
    627 arch/powerpc
      2 arch/um

Signed-off-by: Ian Munsie <imunsie@au1.ibm.com>
Signed-off-by: Michal Marek <mmarek@suse.cz>

diff --git a/scripts/tags.sh b/scripts/tags.sh
index 75c5d24..38f6617 100755 (executable)
--- a/scripts/tags.sh
+++ b/scripts/tags.sh
@@ -129,7 +129,7 @@ exuberant()
        -I EXPORT_SYMBOL,EXPORT_SYMBOL_GPL                      \
        -I DEFINE_TRACE,EXPORT_TRACEPOINT_SYMBOL,EXPORT_TRACEPOINT_SYMBOL_GPL \
        --extra=+f --c-kinds=+px                                \
-       --regex-asm='/^ENTRY\(([^)]*)\).*/\1/'                  \
+       --regex-asm='/^(ENTRY|_GLOBAL)\(([^)]*)\).*/\2/'        \
        --regex-c='/^SYSCALL_DEFINE[[:digit:]]?\(([^,)]*).*/sys_\1/' \
        --regex-c++='/^TRACE_EVENT\(([^,)]*).*/trace_\1/'               \
        --regex-c++='/^DEFINE_EVENT\([^,)]*, *([^,)]*).*/trace_\1/'
@@ -151,7 +151,7 @@ exuberant()
 emacs()
 {
        all_sources | xargs $1 -a                               \
-       --regex='/^ENTRY(\([^)]*\)).*/\1/'                      \
+       --regex='/^(ENTRY|_GLOBAL)(\([^)]*\)).*/\2/'            \
        --regex='/^SYSCALL_DEFINE[0-9]?(\([^,)]*\).*/sys_\1/'   \
        --regex='/^TRACE_EVENT(\([^,)]*\).*/trace_\1/'          \
        --regex='/^DEFINE_EVENT([^,)]*, *\([^,)]*\).*/trace_\1/'