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| author | Martin Sebor <msebor@redhat.com> | 2019-01-05 00:57:30 +0000 |
|---|---|---|
| committer | Martin Sebor <msebor@gcc.gnu.org> | 2019-01-04 17:57:30 -0700 |
| commit | 29d2485270f422a4b89bfa79e448843509cd0568 (patch) | |
| tree | f1e8cf0a03dff36fd00f2c23d9cebce2ecbc3871 /libgcc | |
| parent | f6be1179bb66624403d0f55620d67344d9d98c51 (diff) | |
| download | gcc-29d2485270f422a4b89bfa79e448843509cd0568.zip gcc-29d2485270f422a4b89bfa79e448843509cd0568.tar.gz gcc-29d2485270f422a4b89bfa79e448843509cd0568.tar.bz2 | |
PR c/88546 - Copy attribute unusable for weakrefs
gcc/c-family/ChangeLog:
PR c/88546
* c-attribs.c (handle_copy_attribute): Avoid copying attribute leaf.
Handle C++ empty throw specification and C11 _Noreturn.
(has_attribute): Also handle C11 _Noreturn.
gcc/ChangeLog:
PR c/88546
* attribs.c (decls_mismatched_attributes): Avoid warning for attribute
leaf.
gcc/testsuite/ChangeLog:
PR c/88546
* g++.dg/ext/attr-copy.C: New test.
* gcc.dg/attr-copy-4.c: Disable macro expansion tracking.
* gcc.dg/attr-copy-6.c: New test.
* gcc.dg/attr-copy-7.c: New test.
From-SVN: r267591
Diffstat (limited to 'libgcc')
| -rw-r--r-- | libgcc/gthr-posix.h | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/libgcc/gthr-posix.h b/libgcc/gthr-posix.h index b1a497d..88cbc23 100644 --- a/libgcc/gthr-posix.h +++ b/libgcc/gthr-posix.h @@ -87,7 +87,8 @@ typedef struct timespec __gthread_time_t; # define __gthrw_pragma(pragma) # endif # define __gthrw2(name,name2,type) \ - static __typeof(type) name __attribute__ ((__weakref__(#name2))); \ + static __typeof(type) name \ + __attribute__ ((__weakref__(#name2), __copy__ (type))); \ __gthrw_pragma(weak type) # define __gthrw_(name) __gthrw_ ## name #else |