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| author | Martin Sebor <msebor@redhat.com> | 2017-12-06 17:59:01 +0000 |
|---|---|---|
| committer | Martin Sebor <msebor@gcc.gnu.org> | 2017-12-06 10:59:01 -0700 |
| commit | 9c1caf50e16b50903364709d774244928c719b35 (patch) | |
| tree | 37e9610f886770d0980145594fd7487eac2c1c1a /gcc/testsuite/gcc.dg/builtin-stringop-chk-1.c | |
| parent | 8a797929f09274ccbf95ee7d8e415d35c1f5b0d1 (diff) | |
| download | gcc-9c1caf50e16b50903364709d774244928c719b35.zip gcc-9c1caf50e16b50903364709d774244928c719b35.tar.gz gcc-9c1caf50e16b50903364709d774244928c719b35.tar.bz2 | |
PR tree-optimization/82646 - bogus -Wstringop-overflow with -D_FORTIFY_SOURCE=2 on strncpy with range to a member array
gcc/ChangeLog:
PR tree-optimization/82646
* builtins.c (maybe_emit_chk_warning): Use size as the bound for
strncpy, not maxlen.
gcc/testsuite/ChangeLog:
PR tree-optimization/82646
* gcc.dg/builtin-stringop-chk-1.c: Adjust.
* gcc.dg/builtin-stringop-chk-9.c: New test.
* g++.dg/ext/strncpy-chk1.C: Adjust.
From-SVN: r255448
Diffstat (limited to 'gcc/testsuite/gcc.dg/builtin-stringop-chk-1.c')
| -rw-r--r-- | gcc/testsuite/gcc.dg/builtin-stringop-chk-1.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/gcc/testsuite/gcc.dg/builtin-stringop-chk-1.c b/gcc/testsuite/gcc.dg/builtin-stringop-chk-1.c index 35cc6dc..10048f3 100644 --- a/gcc/testsuite/gcc.dg/builtin-stringop-chk-1.c +++ b/gcc/testsuite/gcc.dg/builtin-stringop-chk-1.c @@ -36,7 +36,7 @@ test (int arg, ...) vx = stpcpy (&buf2[18], "a"); vx = stpcpy (&buf2[18], "ab"); /* { dg-warning "writing 3" "stpcpy" } */ strncpy (&buf2[18], "a", 2); - strncpy (&buf2[18], "a", 3); /* { dg-warning "specified bound 3 exceeds destination size 2" "strncpy" } */ + strncpy (&buf2[18], "a", 3); /* { dg-warning "writing 3 bytes into a region of size 2" "strncpy" } */ strncpy (&buf2[18], "abc", 2); strncpy (&buf2[18], "abc", 3); /* { dg-warning "writing 3 " "strncpy" } */ memset (buf2, '\0', sizeof (buf2)); @@ -93,7 +93,7 @@ void test2 (const H h) { char c; - strncpy (&c, str, 3); /* { dg-warning "specified bound 3 exceeds destination size 1" "strncpy" } */ + strncpy (&c, str, 3); /* { dg-warning "writing 3 bytes into a region of size 1" "strncpy" } */ struct { char b[4]; } x; sprintf (x.b, "%s", "ABCD"); /* { dg-warning "writing 5" "sprintf" } */ |