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X-Received-From: 216.71.154.42 Subject: [Qemu-devel] [PATCH v2 1/5] util/qemu-sockets: 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=98unix_connect_saddr.isra.0=E2=80=99 at util/qemu-s= ockets.c:925:5: /usr/include/bits/string_fortified.h:106:10: error: =E2=80=98__builtin_strn= cpy=E2=80=99 specified bound 108 equals destination size [-Werror=3Dstringo= p-truncation] 106 | return __builtin___strncpy_chk (__dest, __src, __len, __bos (__de= st)); | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~= ~~~~ In function =E2=80=98strncpy=E2=80=99, inlined from =E2=80=98unix_listen_saddr.isra.0=E2=80=99 at util/qemu-so= ckets.c:880:5: Signed-off-by: Alistair Francis --- util/qemu-sockets.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/util/qemu-sockets.c b/util/qemu-sockets.c index 9705051690..8c3322958f 100644 --- a/util/qemu-sockets.c +++ b/util/qemu-sockets.c @@ -829,7 +829,7 @@ static int unix_listen_saddr(UnixSocketAddress *saddr, struct sockaddr_un un; int sock, fd; char *pathbuf =3D NULL; - const char *path; + const char *path QEMU_NONSTRING; =20 sock =3D qemu_socket(PF_UNIX, SOCK_STREAM, 0); if (sock < 0) { @@ -922,7 +922,7 @@ static int unix_connect_saddr(UnixSocketAddress *saddr,= Error **errp) =20 memset(&un, 0, sizeof(un)); un.sun_family =3D AF_UNIX; - strncpy(un.sun_path, saddr->path, sizeof(un.sun_path)); + memcpy(un.sun_path, saddr->path, MIN(strlen(saddr->path), sizeof(un.su= n_path))); =20 /* connect to peer */ do { --=20 2.21.0 From nobody Mon Nov 10 12:43:29 2025 Delivered-To: importer@patchew.org Received-SPF: pass (zoho.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Authentication-Results: mx.zohomail.com; dkim=fail header.i=@wdc.com; spf=pass (zoho.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org; dmarc=fail(p=none dis=none) header.from=wdc.com ARC-Seal: i=1; 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X-Received-From: 216.71.153.144 Subject: [Qemu-devel] [PATCH v2 2/5] hw/usb/hcd-xhci: Fix GCC 9 build warning 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 build warning with GCC 9 on Fedora 30: hw/usb/hcd-xhci.c:3339:66: error: =E2=80=98%d=E2=80=99 directive output may= be truncated writing between 1 and 10 bytes into a region of size 5 [-Werr= or=3Dformat-truncation=3D] 3339 | snprintf(port->name, sizeof(port->name), "usb2 port #%d= ", i+1); | ^~ hw/usb/hcd-xhci.c:3339:54: note: directive argument in the range [1, 214748= 3647] 3339 | snprintf(port->name, sizeof(port->name), "usb2 port #%d= ", i+1); | ^~~~~~~~~~~~~~~ In file included from /usr/include/stdio.h:867, from /home/alistair/qemu/include/qemu/osdep.h:99, from hw/usb/hcd-xhci.c:21: /usr/include/bits/stdio2.h:67:10: note: =E2=80=98__builtin___snprintf_chk= =E2=80=99 output between 13 and 22 bytes into a destination of size 16 67 | return __builtin___snprintf_chk (__s, __n, __USE_FORTIFY_LEVEL - = 1, | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~= ~~ 68 | __bos (__s), __fmt, __va_arg_pack ()); | ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Signed-off-by: Alistair Francis Reviewed-by: Laurent Vivier Reviewed-by: Philippe Mathieu-Daud=C3=A9 --- hw/usb/hcd-xhci.c | 1 + 1 file changed, 1 insertion(+) diff --git a/hw/usb/hcd-xhci.c b/hw/usb/hcd-xhci.c index ec28bee319..2b061772b2 100644 --- a/hw/usb/hcd-xhci.c +++ b/hw/usb/hcd-xhci.c @@ -3322,6 +3322,7 @@ static void usb_xhci_init(XHCIState *xhci) usb_bus_new(&xhci->bus, sizeof(xhci->bus), &xhci_bus_ops, dev); =20 for (i =3D 0; i < usbports; i++) { + g_assert(i < MAX(MAXPORTS_2, MAXPORTS_3)); speedmask =3D 0; if (i < xhci->numports_2) { if (xhci_get_flag(xhci, XHCI_FLAG_SS_FIRST)) { --=20 2.21.0 From nobody Mon Nov 10 12:43:29 2025 Delivered-To: importer@patchew.org Received-SPF: pass (zoho.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Authentication-Results: mx.zohomail.com; dkim=fail header.i=@wdc.com; spf=pass (zoho.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org; dmarc=fail(p=none dis=none) header.from=wdc.com ARC-Seal: i=1; a=rsa-sha256; t=1556667544; cv=none; d=zoho.com; s=zohoarc; b=msH8dWN50kMvurI1Owqg8UH01aunn5SAV4CX3lp32mylTzWiRa/RKxjVf3xScDTkzct4DcsdtWdTM3jhsruQLznM4vcfUcoDgTW+NJuQxp4GQGn/GnGZuK4I/OiOJ3UGRCTyZy0FGinkMZzuwI8pCi0k55aOkclq6/TViBmnkmg= ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=zoho.com; s=zohoarc; t=1556667544; h=Content-ID:Content-Type:Content-Transfer-Encoding:Cc:Date:From:In-Reply-To:List-Subscribe:List-Post:List-Id:List-Archive:List-Help:List-Unsubscribe:MIME-Version:Message-ID:References:Sender:Subject:To:ARC-Authentication-Results; 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X-Received-From: 216.71.154.42 Subject: [Qemu-devel] [PATCH v2 3/5] hw/usb/dev-mtp: Fix GCC 9 build warning 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 with GCC 9 on Fedora 30: hw/usb/dev-mtp.c:1715:36: error: taking address of packed member of =E2=80= =98struct =E2=80=99 may result in an unaligned pointer value [-W= error=3Daddress-of-packed-member] 1715 | dataset->filename); | ~~~~~~~^~~~~~~~~~ Signed-off-by: Alistair Francis --- hw/usb/dev-mtp.c | 13 +++++++++++++ 1 file changed, 13 insertions(+) diff --git a/hw/usb/dev-mtp.c b/hw/usb/dev-mtp.c index 99548b012d..8233beacab 100644 --- a/hw/usb/dev-mtp.c +++ b/hw/usb/dev-mtp.c @@ -1711,9 +1711,22 @@ static void usb_mtp_write_metadata(MTPState *s, uint= 64_t dlen) assert(!s->write_pending); assert(p !=3D NULL); =20 +/* + * We are about to access a packed struct. We are confident that the point= er + * address won't be unaligned, so we ignore GCC warnings. + */ +#if defined(CONFIG_PRAGMA_DIAGNOSTIC_AVAILABLE) && QEMU_GNUC_PREREQ(9, 0) +#pragma GCC diagnostic push +#pragma GCC diagnostic ignored "-Waddress-of-packed-member" +#endif + filename =3D utf16_to_str(MIN(dataset->length, filename_chars), dataset->filename); =20 +#if defined(CONFIG_PRAGMA_DIAGNOSTIC_AVAILABLE) && QEMU_GNUC_PREREQ(9, 0) +#pragma GCC diagnostic pop +#endif + if (strchr(filename, '/')) { usb_mtp_queue_result(s, RES_PARAMETER_NOT_SUPPORTED, d->trans, 0, 0, 0, 0); --=20 2.21.0 From nobody Mon Nov 10 12:43:29 2025 Delivered-To: importer@patchew.org Received-SPF: temperror (zoho.com: Error in retrieving data from DNS) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Authentication-Results: mx.zohomail.com; dkim=fail header.i=@wdc.com; spf=temperror (zoho.com: Error in retrieving data from DNS) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org; 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X-Received-From: 216.71.154.42 Subject: [Qemu-devel] [PATCH v2 4/5] linux-user/uname: 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=98sys_uname=E2=80=99 at /home/alistair/qemu/linux-u= ser/uname.c:94:3: /usr/include/bits/string_fortified.h:106:10: error: =E2=80=98__builtin_strn= cpy=E2=80=99 output may be truncated copying 64 bytes from a string of leng= th 64 [-Werror=3Dstringop-truncation] 106 | return __builtin___strncpy_chk (__dest, __src, __len, __bos (__de= st)); | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~= ~~~~ Signed-off-by: Alistair Francis --- linux-user/uname.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/linux-user/uname.c b/linux-user/uname.c index 313b79dbad..2fc6096a5b 100644 --- a/linux-user/uname.c +++ b/linux-user/uname.c @@ -73,7 +73,7 @@ const char *cpu_to_uname_machine(void *cpu_env) #define COPY_UTSNAME_FIELD(dest, src) \ do { \ /* __NEW_UTS_LEN doesn't include terminating null */ \ - (void) strncpy((dest), (src), __NEW_UTS_LEN); \ + (void) memcpy((dest), (src), MIN(strlen(src), __NEW_UTS_LEN)); \ (dest)[__NEW_UTS_LEN] =3D '\0'; \ } while (0) =20 --=20 2.21.0 From nobody Mon Nov 10 12:43:29 2025 Delivered-To: importer@patchew.org Received-SPF: pass (zoho.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Authentication-Results: mx.zohomail.com; dkim=fail header.i=@wdc.com; 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X-Received-From: 216.71.154.42 Subject: [Qemu-devel] [PATCH v2 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 Reviewed-by: Laurent Vivier Reviewed-by: Richard Henderson --- linux-user/elfload.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/linux-user/elfload.c b/linux-user/elfload.c index c1a26021f8..d08fe23466 100644 --- a/linux-user/elfload.c +++ b/linux-user/elfload.c @@ -2872,7 +2872,7 @@ struct target_elf_prpsinfo { target_gid_t pr_gid; target_pid_t pr_pid, pr_ppid, pr_pgrp, pr_sid; /* Lots missing */ - char pr_fname[16]; /* filename of executable */ + char pr_fname[16] QEMU_NONSTRING; /* filename of executable */ char pr_psargs[ELF_PRARGSZ]; /* initial part of arg list */ }; =20 --=20 2.21.0