From 29411db7b6cf872e73b5560c46dd941f91e704cd Mon Sep 17 00:00:00 2001 From: Mike Frysinger Date: Sat, 26 Jan 2013 14:13:12 -0500 Subject: [PATCH] buildsys: gen_bits_syscall_h: do not leave undefined SYS_xxx around If we end up doing '#undef __NR_xxx', we don't want to leave the corresponding SYS_xxx symbol defined. So undef it too. For example, with the ARM EABI layer, we have a bunch of legacy syscalls that we define early on and then later undefine (such as __NR_utime). But we left SYS_utime defined so code that tests for that define before using it would be broken (since it'd be defined to a non-existent symbol). URL: https://bugs.gentoo.org/425006 Signed-off-by: Mike Frysinger --- extra/scripts/gen_bits_syscall_h.sh | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/extra/scripts/gen_bits_syscall_h.sh b/extra/scripts/gen_bits_syscall_h.sh index f6353ba..fd141f0 100755 --- a/extra/scripts/gen_bits_syscall_h.sh +++ b/extra/scripts/gen_bits_syscall_h.sh @@ -40,7 +40,8 @@ $CC -E $INCLUDE_OPTS - | sed -ne 's/^UCLIBC\(__ARM_NR_\|__NR_\)\([A-Za-z0-9_]*\) *\(.*\)/#undef \1\2\ #define \1\2 \3\ #define SYS_\2 \1\2/gp' \ - -e 's/^UNDEFUCLIBC\(__ARM_NR_\|__NR_\)\([A-Za-z0-9_]*\).*/#undef \1\2/gp' + -e 's/^UNDEFUCLIBC\(__ARM_NR_\|__NR_\)\([A-Za-z0-9_]*\).*/#undef \1\2\ +#undef SYS_\2/gp' echo ; echo "#endif" ; ) -- 1.7.10.4