diff options
| author | Noel Grandin <noel.grandin@collabora.co.uk> | 2020-03-04 20:27:36 +0200 |
|---|---|---|
| committer | Noel Grandin <noel.grandin@collabora.co.uk> | 2020-03-06 08:18:06 +0100 |
| commit | 47b4ee1a1a2a0212ffcf3e85647e9f9f67276ee3 (patch) | |
| tree | 4dc94e2ea216efee2b583a9fa4ecd13fe884889d /config_host | |
| parent | cedc8a942e451a63dd1e7dae7f25642c0fcb4be8 (diff) | |
limit symbols exported when using --enable-mergelibs
when doing LTO and --enable-mergelibs, we can improve the effectiveness
of LTO by marking more code as internal to the merged library.
So introduce a new macro UNLESS_MERGELIBS, which we can wrap around
*_DLLPUBLIC annotations
Also introduced here is a script that can be run on a completed build to
determine which classes can be marked with this macro.
Change-Id: I73fb87c897489da53791277d0b66b01f884ba061
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/89991
Tested-by: Jenkins
Reviewed-by: Noel Grandin <noel.grandin@collabora.co.uk>
Diffstat (limited to 'config_host')
| -rw-r--r-- | config_host/config_options.h.in | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/config_host/config_options.h.in b/config_host/config_options.h.in index 0223f089ce2b..a52aed1f4198 100644 --- a/config_host/config_options.h.in +++ b/config_host/config_options.h.in @@ -11,6 +11,17 @@ */ #define STATIC_LINKING 0 +#define ENABLE_MERGELIBS 0 + #define ENABLE_RUNTIME_OPTIMIZATIONS 0 +// Used to turn off visibility for some classes/symbols when linking with --enable-mergelibs +// +#if ENABLE_MERGELIBS +#define UNLESS_MERGELIBS(x) +#else +#define UNLESS_MERGELIBS(x) x +#endif + + #endif |