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* [binutils-gdb] gdb: Workaround stringop-overread warning in debuginfod-support.c on powerpc64
@ 2022-05-12 10:41 Mark Wielaard
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From: Mark Wielaard @ 2022-05-12 10:41 UTC (permalink / raw)
To: gdb-cvs
https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git;h=73a5cb257a21ad38c85932b7be4a903404d91899
commit 73a5cb257a21ad38c85932b7be4a903404d91899
Author: Mark Wielaard <mark@klomp.org>
Date: Thu May 12 00:46:37 2022 +0200
gdb: Workaround stringop-overread warning in debuginfod-support.c on powerpc64
Just like on s390x with g++ 11.2.1, ppc64le with g++ 11.3.1 produces a
spurious warning for stringop-overread in debuginfod_is_enabled
for url_view. Also suppress it on powerpc64.
gdb/ChangeLog:
* debuginfod-support.c (debuginfod_is_enabled): Use
DIAGNOSTIC_IGNORE_STRINGOP_OVERREAD on powerpc64.
Diff:
---
gdb/debuginfod-support.c | 10 +++++-----
1 file changed, 5 insertions(+), 5 deletions(-)
diff --git a/gdb/debuginfod-support.c b/gdb/debuginfod-support.c
index f2a31ea1952..6dc08fc29b6 100644
--- a/gdb/debuginfod-support.c
+++ b/gdb/debuginfod-support.c
@@ -193,15 +193,15 @@ 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. */
+#if defined (__s390x__) || defined (__powerpc64__)
+ /* g++ 11.2.1 on s390x and g++ 11.3.1 on ppc64le seem 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__)
+#if defined (__s390x__) || defined (__powerpc64__)
DIAGNOSTIC_POP
#endif
gdb_printf
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