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| author | Mark Wielaard <mark@klomp.org> | 2022-05-03 23:17:31 +0000 |
|---|---|---|
| committer | Mark Wielaard <mark@klomp.org> | 2022-05-04 16:07:59 +0200 |
| commit | 716e54731f30bc60b2fc52996ebe4fc087420b2e (patch) | |
| tree | 041b27d552dc090fecd5bf4582c757c3bc61e90d /gdb | |
| parent | 5890af36e5112bcbb8d7555e63570f68466e6944 (diff) | |
| download | gdb-716e54731f30bc60b2fc52996ebe4fc087420b2e.zip gdb-716e54731f30bc60b2fc52996ebe4fc087420b2e.tar.gz gdb-716e54731f30bc60b2fc52996ebe4fc087420b2e.tar.bz2 | |
gdb: Workaround stringop-overread warning in debuginfod-support.c on s390x
For some reason g++ 11.2.1 on s390x produces a spurious warning for
stringop-overread in debuginfod_is_enabled for url_view. Add a new
DIAGNOSTIC_IGNORE_STRINGOP_OVERREAD macro to suppress this warning.
include/ChangeLog:
* diagnostics.h (DIAGNOSTIC_IGNORE_STRINGOP_OVERREAD): New
macro.
gdb/ChangeLog:
* debuginfod-support.c (debuginfod_is_enabled): Use
DIAGNOSTIC_IGNORE_STRINGOP_OVERREAD on s390x.
Diffstat (limited to 'gdb')
| -rw-r--r-- | gdb/debuginfod-support.c | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/gdb/debuginfod-support.c b/gdb/debuginfod-support.c index dffcd78..f2a31ea 100644 --- a/gdb/debuginfod-support.c +++ b/gdb/debuginfod-support.c @@ -17,6 +17,7 @@ along with this program. If not, see <http://www.gnu.org/licenses/>. */ #include "defs.h" +#include "diagnostics.h" #include <errno.h> #include "gdbsupport/scoped_fd.h" #include "debuginfod-support.h" @@ -192,7 +193,17 @@ debuginfod_is_enabled () if (off == gdb::string_view::npos) break; url_view = url_view.substr (off); +#if defined (__s390x__) + /* g++ 11.2.1 on s390x seems convinced url_view might be of + SIZE_MAX length. And so complains because the length of + an array can only be PTRDIFF_MAX. */ + DIAGNOSTIC_PUSH + DIAGNOSTIC_IGNORE_STRINGOP_OVERREAD +#endif off = url_view.find_first_of (' '); +#if defined (__s390x__) + DIAGNOSTIC_POP +#endif gdb_printf (_(" <%ps>\n"), styled_string (file_name_style.style (), |