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X-Received-From: 68.232.143.124 Subject: [Qemu-devel] [PATCH v1 5/5] linux-user/elfload: Fix GCC 9 build warnings X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: "qemu-trivial@nongnu.org" , "riku.voipio@iki.fi" , "laurent@vivier.eu" , Alistair Francis , "kraxel@redhat.com" , "alistair23@gmail.com" Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" X-ZohoMail-DKIM: fail (found 2 invalid signatures) Fix this warning when building with GCC9 on Fedora 30: In function =E2=80=98strncpy=E2=80=99, inlined from =E2=80=98fill_psinfo=E2=80=99 at /home/alistair/qemu/linux= -user/elfload.c:3208:12, inlined from =E2=80=98fill_note_info=E2=80=99 at /home/alistair/qemu/li= nux-user/elfload.c:3390:5, inlined from =E2=80=98elf_core_dump=E2=80=99 at /home/alistair/qemu/lin= ux-user/elfload.c:3539:9: /usr/include/bits/string_fortified.h:106:10: error: =E2=80=98__builtin_strn= cpy=E2=80=99 specified bound 16 equals destination size [-Werror=3Dstringop= -truncation] 106 | return __builtin___strncpy_chk (__dest, __src, __len, __bos (__de= st)); | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~= ~~~~ Signed-off-by: Alistair Francis --- linux-user/elfload.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/linux-user/elfload.c b/linux-user/elfload.c index c1a26021f8..cbb7fc10fa 100644 --- a/linux-user/elfload.c +++ b/linux-user/elfload.c @@ -3206,7 +3206,7 @@ static int fill_psinfo(struct target_elf_prpsinfo *ps= info, const TaskState *ts) * this field is not NUL-terminated. */ (void) strncpy(psinfo->pr_fname, base_filename, - sizeof(psinfo->pr_fname)); + sizeof(psinfo->pr_fname) - 1); =20 g_free(base_filename); bswap_psinfo(psinfo); @@ -3389,7 +3389,7 @@ static int fill_note_info(struct elf_note_info *info, sizeof (*info->prstatus), info->prstatus); fill_psinfo(info->psinfo, ts); fill_note(&info->notes[1], "CORE", NT_PRPSINFO, - sizeof (*info->psinfo), info->psinfo); + sizeof(*info->psinfo) - 1, info->psinfo); fill_auxv_note(&info->notes[2], ts); info->numnote =3D 3; =20 --=20 2.21.0