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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 /gcc/attribs.c | |
| 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 'gcc/attribs.c')
| -rw-r--r-- | gcc/attribs.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/gcc/attribs.c b/gcc/attribs.c index 3b4084e..d9b6a04 100644 --- a/gcc/attribs.c +++ b/gcc/attribs.c @@ -1912,6 +1912,12 @@ decls_mismatched_attributes (tree tmpl, tree decl, tree attrlist, for (unsigned i = 0; blacklist[i]; ++i) { + /* Attribute leaf only applies to extern functions. Avoid mentioning + it when it's missing from a static declaration. */ + if (!TREE_PUBLIC (decl) + && !strcmp ("leaf", blacklist[i])) + continue; + for (unsigned j = 0; j != 2; ++j) { if (!has_attribute (tmpls[j], tmpl_attrs[j], blacklist[i])) |