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| author | Adhemerval Zanella <adhemerval.zanella@linaro.org> | 2021-03-19 17:21:05 +0000 |
|---|---|---|
| committer | Adhemerval Zanella <adhemerval.zanella@linaro.org> | 2021-03-26 13:36:16 -0300 |
| commit | 4d2e9ef806bd9edc9cf5e133983a4e86ddab381a (patch) | |
| tree | 05707dc6005bfca41fafdc1aa3d6b6648bc65131 /include | |
| parent | 1b53b5d970c232b48843c778ac4566ff5b566c3b (diff) | |
| download | glibc-4d2e9ef806bd9edc9cf5e133983a4e86ddab381a.tar.gz glibc-4d2e9ef806bd9edc9cf5e133983a4e86ddab381a.tar.xz glibc-4d2e9ef806bd9edc9cf5e133983a4e86ddab381a.zip | |
Add OTHER_SHLIB_COMPAT
It is similar to SHLIB_COMPAT, but allows to check versions from other libraries. It is used to move compat symbol from other libraries to libc.
Diffstat (limited to 'include')
| -rw-r--r-- | include/shlib-compat.h | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/include/shlib-compat.h b/include/shlib-compat.h index 537851d753..6c423c8cb0 100644 --- a/include/shlib-compat.h +++ b/include/shlib-compat.h @@ -53,6 +53,14 @@ # define SHLIB_COMPAT(lib, introduced, obsoleted) \ _LIB_COMPAT (lib, introduced, obsoleted) +/* Like SHLIB_COMPAT, but it can check versions in other libraries. It is + not always false for !IS_IN (LIB). */ +#define OTHER_SHLIB_COMPAT(lib, introduced, obsoleted) \ + _OTHER_SHLIB_COMPAT (lib, introduced, obsoleted) +#define _OTHER_SHLIB_COMPAT(lib, introduced, obsoleted) \ + (!(ABI_##lib##_##obsoleted - 0) \ + || ((ABI_##lib##_##introduced - 0) < (ABI_##lib##_##obsoleted - 0))) + /* That header also defines symbols like `VERSION_libm_GLIBC_2_1' to the version set name to use for e.g. symbols first introduced into libm in the GLIBC_2.1 version. Definitions of symbols with explicit @@ -106,6 +114,7 @@ /* Not compiling ELF shared libraries at all, so never any old versions. */ # define SHLIB_COMPAT(lib, introduced, obsoleted) 0 +# define OTHER_SHLIB_COMPAT(lib, introduced, obsoleted) 0 /* No versions to worry about, just make this the global definition. */ # define versioned_symbol(lib, local, symbol, version) \ |