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| author |   Mike Frysinger <vapier@gentoo.org> | 2008-12-23 10:06:48 -0200 |
|---|---|---|
| committer | Mike Frysinger <vapier@gentoo.org> | 2008-12-23 10:06:48 -0200 |
| commit | 56a3e5cd27f2a7b19a0b9855577ae6f6015027aa (patch) | |
| tree | b22d92c27ea9d5603c6a380bad11e0e226eae469 /scripts | |
| parent | define AT_FDCWD for older systems (diff) | |
| download | sandbox-56a3e5cd27f2a7b19a0b9855577ae6f6015027aa.tar.gz sandbox-56a3e5cd27f2a7b19a0b9855577ae6f6015027aa.tar.bz2 sandbox-56a3e5cd27f2a7b19a0b9855577ae6f6015027aa.zip | |
libsandbox: make sure SB_NR_* is always defined
If the host libc does not support a wrapped function, then setup a bogus
SB_NR_* define for it still. This way we don't need to fill up the source
with ugly #ifdef's. The resulting overhead at runtime should be
negligible anyways as it's simply one additional integer compare.
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Diffstat (limited to 'scripts')
| -rw-r--r-- | scripts/gen_symbol_header.awk | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/scripts/gen_symbol_header.awk b/scripts/gen_symbol_header.awk index 636f68e..88eff6e 100644 --- a/scripts/gen_symbol_header.awk +++ b/scripts/gen_symbol_header.awk @@ -80,11 +80,15 @@ BEGIN { END { printf("#ifndef __symbols_h\n"); printf("#define __symbols_h\n\n"); + printf("#define SB_NR_UNDEF -99999\n\n"); # We use the order in SYMBOLS, as some wrappers depends on others ... for (i = 1; i <= COUNT; ++i) { sym_index = SYMBOLS[i]; - split(SYMBOL_LIST[sym_index], sym_full_names); + full_count = split(SYMBOL_LIST[sym_index], sym_full_names); + + if (full_count == 0) + printf("#define SB_NR_%s SB_NR_UNDEF\n", toupper(sym_index)); for (x in sym_full_names) { split(sym_full_names[x], symbol_array, /@|@@/); |