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| author | Denis Vlasenko <vda.linux@googlemail.com> | 2007-03-15 19:48:35 +0000 |
|---|---|---|
| committer | Denis Vlasenko <vda.linux@googlemail.com> | 2007-03-15 19:48:35 +0000 |
| commit | bff32ce4d5a22fe7664f77c96f281fe3b02a9c75 (patch) | |
| tree | 820b303027a64c7ce81bc084ce30140792b36d3a /include | |
| parent | 1cc70225e7bfee447543ea38b08c7caeb6492c8b (diff) | |
| download | busybox-bff32ce4d5a22fe7664f77c96f281fe3b02a9c75.tar.gz | |
gzip: Improve ptr_to_globals trick, allowing gcc
to optimize better. -480 bytes.
Diffstat (limited to 'include')
| -rw-r--r-- | include/libbb.h | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/include/libbb.h b/include/libbb.h index 90fb0ad91..d68519dfa 100644 --- a/include/libbb.h +++ b/include/libbb.h @@ -804,7 +804,10 @@ extern char bb_common_bufsiz1[BUFSIZ+1]; /* This struct is deliberately not defined. */ /* See docs/keep_data_small.txt */ struct globals; -extern struct globals *ptr_to_globals; +/* Magic prevents this from going into rodata */ +/* If you want to assign a value, use PTR_TO_GLOBALS = xxx */ +extern struct globals *const ptr_to_globals; +#define PTR_TO_GLOBALS (*(struct globals**)&ptr_to_globals) /* You can change LIBBB_DEFAULT_LOGIN_SHELL, but don't use it, * use bb_default_login_shell and following defines. |