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| author | Paul E. Murphy <murphyp@linux.vnet.ibm.com> | 2016-09-08 08:48:08 -0500 |
|---|---|---|
| committer | Paul E. Murphy <murphyp@linux.vnet.ibm.com> | 2016-09-20 14:37:40 -0500 |
| commit | 9f9834f582f87cc84bfaa11cff5f98fb661c288d (patch) | |
| tree | 871f7a56da332d8fadb01fb81eae95a7ed6545c2 /sysdeps/generic | |
| parent | 8837917cf17b083ac4178352c740b0bfeada4d7f (diff) | |
| download | glibc-9f9834f582f87cc84bfaa11cff5f98fb661c288d.tar.gz glibc-9f9834f582f87cc84bfaa11cff5f98fb661c288d.tar.xz glibc-9f9834f582f87cc84bfaa11cff5f98fb661c288d.zip | |
Make ldexpF generic.
This one is a little more tricky since it is built both for libm and libc, and exports multiple aliases. To simplify aliasing, a new macro is introduced which handles aliasing to two symbols. By default, it just applies declare_mgen_alias to both target symbols. Likewise, the makefile is tweaked a little to generate templates for shared files too, and a new rule is added to build m_*.c objects from the objpfx directory. Verified there are no symbol or code changes using a script to diff the *_ldexp* object files on s390x, aarch64, arm, x86_64, and ppc64.
Diffstat (limited to 'sysdeps/generic')
| -rw-r--r-- | sysdeps/generic/math-type-macros-double.h | 10 | ||||
| -rw-r--r-- | sysdeps/generic/math-type-macros.h | 12 |
2 files changed, 19 insertions, 3 deletions
diff --git a/sysdeps/generic/math-type-macros-double.h b/sysdeps/generic/math-type-macros-double.h index 154f416a7f..284a6a48db 100644 --- a/sysdeps/generic/math-type-macros-double.h +++ b/sysdeps/generic/math-type-macros-double.h @@ -34,9 +34,13 @@ weak_alias (from, to) \ strong_alias (from, from ## l) \ weak_alias (from, to ## l) -#elif !defined declare_mgen_alias -# define declare_mgen_alias(from, to) \ - weak_alias (M_SUF (from), M_SUF (to)) +#endif + +#if defined NO_LONG_DOUBLE && !defined declare_mgen_alias_2 +# define declare_mgen_alias_2(from, to, to2) \ + declare_mgen_alias (from, to) \ + weak_alias (from, to2) \ + weak_alias (from, to2 ## l) #endif /* Supply the generic macros. */ diff --git a/sysdeps/generic/math-type-macros.h b/sysdeps/generic/math-type-macros.h index 259cb9421f..bd9e25a816 100644 --- a/sysdeps/generic/math-type-macros.h +++ b/sysdeps/generic/math-type-macros.h @@ -38,6 +38,11 @@ This exposes the appropriate symbol(s) for a function f of type FLOAT. + declare_mgen_alias_2(from,to,to2) + This exposes the appropriate symbol(s) for a + function f of type FLOAT when it is aliased + to two symbols. + M_LIBM_NEED_COMPAT(func) This is utilized in macro context to indicate whether func should declare compat symbols. @@ -112,6 +117,13 @@ # define declare_mgen_alias(from, to) weak_alias (M_SUF (from), M_SUF (to)) #endif +/* Likewise, if two aliases are derived from the same symbol. */ +#ifndef declare_mgen_alias_2 +# define declare_mgen_alias_2(from, to, to2) \ + declare_mgen_alias (from, to) \ + declare_mgen_alias (from, to2) +#endif + /* Do not generate anything for compat symbols by default. */ #ifndef M_LIBM_NEED_COMPAT # define M_LIBM_NEED_COMPAT(func) 0 |