walkero
/
fontconfig
1
0
Fork 0
Code Issues Pull Requests Projects Releases Wiki Activity
fontconfig/src/makealias

39 lines
1020 B
Plaintext
Raw Normal View History

Eliminate .so PLT entries for local symbols. (thanks to Arjan van de Ven) Using a simple shell script that processes the public headers, two header files are constructed that map public symbols to hidden internal aliases avoiding the assocated PLT entry for referring to a public symbol. A few mistakes in the FcPrivate/FcPublic annotations were also discovered through this process
2006-09-05 11:24:01 +02:00
#!/bin/sh
SRCDIR=$1
shift
Remove freetype requirement for build-time applications. This avoids requiring the freetype development files when cross compiling
2008-01-02 17:47:14 +01:00
HEAD=$1
shift
TAIL=$1
shift
Eliminate .so PLT entries for local symbols. (thanks to Arjan van de Ven) Using a simple shell script that processes the public headers, two header files are constructed that map public symbols to hidden internal aliases avoiding the assocated PLT entry for referring to a public symbol. A few mistakes in the FcPrivate/FcPublic annotations were also discovered through this process
2006-09-05 11:24:01 +02:00
rm -f $HEAD $TAIL
Attempt to fix makealias usage for build on Mac OS X. Avoid using fcalias.h or fcaliastail.h on systems which don't support it. Provided solution still generates these files, but does not use them.
2006-09-08 00:17:10 +02:00
echo "#if HAVE_GNUC_ATTRIBUTE" >> $TAIL
Replace gnu-specific sed command with simple grep. makealias was using a gnu-extension to sed addressing, replace that with a simple (and more robuse) grep command. Also, found a bug in the public header file that was leaving one symbol out of the process.
2006-09-07 23:37:52 +02:00
cat "$@" | grep '^Fc[^ ]* *(' | sed -e 's/ *(.*$//' |
Eliminate .so PLT entries for local symbols. (thanks to Arjan van de Ven) Using a simple shell script that processes the public headers, two header files are constructed that map public symbols to hidden internal aliases avoiding the assocated PLT entry for referring to a public symbol. A few mistakes in the FcPrivate/FcPublic annotations were also discovered through this process
2006-09-05 11:24:01 +02:00
while read name; do
case $name in
FcCacheDir|FcCacheSubdir)
;;
*)
alias="IA__$name"
hattr='__attribute((visibility("hidden")))'
echo "extern __typeof ($name) $alias $hattr;" >> $HEAD
echo "#define $name $alias" >> $HEAD
makealias: handle missing funcs better When adding new functions, if the actual definition doesn't match the header (say due to a typo), the regeneration of the internal headers get confused and output bad cpp logic. This causes gcc to barf due to mismatched #ifdef/#endif. Which is a pain to figure out due to the sheer voulme of generated code. So tweak the makealias script to detect this case and error out. While we're here, improve the cpp output a bit to indent, include comments, and merge similar ifdef blocks. Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2011-11-08 20:19:57 +01:00
ifdef=$(grep -l '^'$name'[ (]' "$SRCDIR"/*.c | sed -n 1p | sed -e 's/^.*\/\([^.]*\)\.c/__\1__/')
if [ -z "$ifdef" ] ; then
echo "error: could not locate $name in src/*.c" 1>&2
exit 1
fi
if [ "$ifdef" != "$last" ] ; then
[ -n "$last" ] && echo "#endif /* $last */" >> $TAIL
echo "#ifdef $ifdef" >> $TAIL
last=$ifdef
fi
echo "# undef $name" >> $TAIL
Eliminate .so PLT entries for local symbols. (thanks to Arjan van de Ven) Using a simple shell script that processes the public headers, two header files are constructed that map public symbols to hidden internal aliases avoiding the assocated PLT entry for referring to a public symbol. A few mistakes in the FcPrivate/FcPublic annotations were also discovered through this process
2006-09-05 11:24:01 +02:00
cattr='__attribute((alias("'$alias'"), visibility("default")))'
echo "extern __typeof ($name) $name $cattr;" >> $TAIL
;;
esac
done
makealias: handle missing funcs better When adding new functions, if the actual definition doesn't match the header (say due to a typo), the regeneration of the internal headers get confused and output bad cpp logic. This causes gcc to barf due to mismatched #ifdef/#endif. Which is a pain to figure out due to the sheer voulme of generated code. So tweak the makealias script to detect this case and error out. While we're here, improve the cpp output a bit to indent, include comments, and merge similar ifdef blocks. Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2011-11-08 20:19:57 +01:00
[ $? -ne 0 ] && exit 1
echo "#endif /* $ifdef */" >> $TAIL
echo "#endif /* HAVE_GNUC_ATTRIBUTE */" >> $TAIL