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gdb: Workaround stringop-overread warning in debuginfod-support.c on powerpc64

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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.
This commit is contained in:
Mark Wielaard 2022-05-12 00:46:37 +02:00
parent d1fb8316b0
commit 73a5cb257a
1 changed files with 5 additions and 5 deletions
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10
gdb/debuginfod-support.c
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@ -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