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| author | Jakub Jelinek <jakub@redhat.com> | 2018-04-25 12:02:24 +0200 |
|---|---|---|
| committer | Jakub Jelinek <jakub@gcc.gnu.org> | 2018-04-25 12:02:24 +0200 |
| commit | b33a0cb323fa000f8fe50b8ad844fda2bda47c1d (patch) | |
| tree | 14ae49465d58278bc2c4e120847f9c4c7c40e6d7 /gcc/c | |
| parent | 87ed4159acd89266d3aeae39c3ce9e548556d7f4 (diff) | |
| download | gcc-b33a0cb323fa000f8fe50b8ad844fda2bda47c1d.zip gcc-b33a0cb323fa000f8fe50b8ad844fda2bda47c1d.tar.gz gcc-b33a0cb323fa000f8fe50b8ad844fda2bda47c1d.tar.bz2 | |
re PR sanitizer/84307 (asan blocks dead-store elimination)
PR sanitizer/84307
* c-decl.c (build_compound_literal): Call pushdecl (decl) even when
it is not TREE_STATIC.
* c-typeck.c (c_mark_addressable) <case COMPOUND_LITERAL_EXPR>: Mark
not just the COMPOUND_LITERAL_EXPR node itself addressable, but also
its COMPOUND_LITERAL_EXPR_DECL.
From-SVN: r259641
Diffstat (limited to 'gcc/c')
| -rw-r--r-- | gcc/c/ChangeLog | 9 | ||||
| -rw-r--r-- | gcc/c/c-decl.c | 2 | ||||
| -rw-r--r-- | gcc/c/c-typeck.c | 4 |
3 files changed, 15 insertions, 0 deletions
diff --git a/gcc/c/ChangeLog b/gcc/c/ChangeLog index fc077a8..7a3cf3f 100644 --- a/gcc/c/ChangeLog +++ b/gcc/c/ChangeLog @@ -1,3 +1,12 @@ +2018-04-25 Jakub Jelinek <jakub@redhat.com> + + PR sanitizer/84307 + * c-decl.c (build_compound_literal): Call pushdecl (decl) even when + it is not TREE_STATIC. + * c-typeck.c (c_mark_addressable) <case COMPOUND_LITERAL_EXPR>: Mark + not just the COMPOUND_LITERAL_EXPR node itself addressable, but also + its COMPOUND_LITERAL_EXPR_DECL. + 2018-03-21 Joseph Myers <joseph@codesourcery.com> * c-parser.c (c_parser_postfix_expression): For __builtin_tgmath diff --git a/gcc/c/c-decl.c b/gcc/c/c-decl.c index f0198ec..7255588 100644 --- a/gcc/c/c-decl.c +++ b/gcc/c/c-decl.c @@ -5348,6 +5348,8 @@ build_compound_literal (location_t loc, tree type, tree init, bool non_const, pushdecl (decl); rest_of_decl_compilation (decl, 1, 0); } + else + pushdecl (decl); if (non_const) { diff --git a/gcc/c/c-typeck.c b/gcc/c/c-typeck.c index ffd0644..5b3ea28 100644 --- a/gcc/c/c-typeck.c +++ b/gcc/c/c-typeck.c @@ -4821,6 +4821,10 @@ c_mark_addressable (tree exp, bool array_ref_p) break; case COMPOUND_LITERAL_EXPR: + TREE_ADDRESSABLE (x) = 1; + TREE_ADDRESSABLE (COMPOUND_LITERAL_EXPR_DECL (x)) = 1; + return true; + case CONSTRUCTOR: TREE_ADDRESSABLE (x) = 1; return true; |