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authorMike Frysinger <vapier@gentoo.org>2013-01-26 14:13:12 -0500
committerMike Frysinger <vapier@gentoo.org>2013-01-26 14:13:12 -0500
commit48d8e3721ecf04744e7b3e9f72cd2b269e036fc0 (patch)
tree39d0c444dd7c34d3241659bb3a7aab1c88348c6f
parent5ce6b30bd1a0077f450735162e6d53de793dab5f (diff)
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 <vapier@gentoo.org>
-rwxr-xr-xextra/scripts/gen_bits_syscall_h.sh3
1 files changed, 2 insertions, 1 deletions
diff --git a/extra/scripts/gen_bits_syscall_h.sh b/extra/scripts/gen_bits_syscall_h.sh
index 4345388f4..c44cd8fa4 100755
--- a/extra/scripts/gen_bits_syscall_h.sh
+++ b/extra/scripts/gen_bits_syscall_h.sh
@@ -50,7 +50,8 @@ EOF
sed -n -r -e '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'
cat <<-EOF
#endif