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Tue, 14 Jul 2026 12:49:05 +0000 (UTC) Received: from dovecot-director2.suse.de ([2a07:de40:b281:106:10:150:64:167]) by imap1.dmz-prg2.suse.org with ESMTPSA id tznkH0EwVmo3NgAAD6G6ig (envelope-from ); Tue, 14 Jul 2026 12:49:05 +0000 Date: Tue, 14 Jul 2026 14:48:52 +0200 From: Cyril Hrubis To: Andrea Cervesato Message-ID: References: <20260714-syscall_invalid_nr-v2-1-b94a8f60f112@suse.com> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: <20260714-syscall_invalid_nr-v2-1-b94a8f60f112@suse.com> X-Spamd-Result: default: False [-8.30 / 50.00]; REPLY(-4.00)[]; BAYES_HAM(-3.00)[100.00%]; NEURAL_HAM_LONG(-1.00)[-1.000]; NEURAL_HAM_SHORT(-0.20)[-0.998]; MIME_GOOD(-0.10)[text/plain]; TO_DN_ALL(0.00)[]; URIBL_BLOCKED(0.00)[suse.com:email,imap1.dmz-prg2.suse.org:helo,suse.cz:email,yuki.lan:mid]; RCPT_COUNT_TWO(0.00)[2]; FUZZY_RATELIMITED(0.00)[rspamd.com]; DKIM_SIGNED(0.00)[suse.cz:s=susede2_rsa,suse.cz:s=susede2_ed25519]; ARC_NA(0.00)[]; TO_MATCH_ENVRCPT_ALL(0.00)[]; FROM_HAS_DN(0.00)[]; RCVD_TLS_ALL(0.00)[]; FROM_EQ_ENVFROM(0.00)[]; MIME_TRACE(0.00)[0:+]; RCVD_COUNT_TWO(0.00)[2]; MISSING_XM_UA(0.00)[]; RCVD_VIA_SMTP_AUTH(0.00)[]; DBL_BLOCKED_OPENRESOLVER(0.00)[yuki.lan:mid, suse.cz:email, suse.com:email, imap1.dmz-prg2.suse.org:helo] X-Virus-Scanned: clamav-milter 1.0.9 at in-4.smtp.seeweb.it X-Virus-Status: Clean Subject: Re: [LTP] [PATCH v2] syscall02: test invalid syscall number -1 X-BeenThere: ltp@lists.linux.it X-Mailman-Version: 2.1.29 Precedence: list List-Id: Linux Test Project List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Linux Test Project Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Errors-To: ltp-bounces+ltp=archiver.kernel.org@lists.linux.it Sender: "ltp" Hi! > diff --git a/runtest/syscalls b/runtest/syscalls > index a021c79da49d4157c33187caed2dd3f0483759e0..8a777e61da1af59ba694e0bc5b5d92bb1d63754a 100644 > --- a/runtest/syscalls > +++ b/runtest/syscalls > @@ -1678,6 +1678,7 @@ sync_file_range01 sync_file_range01 > sync_file_range02 sync_file_range02 > > syscall01 syscall01 > +syscall02 syscall02 > > sysconf01 sysconf01 > > diff --git a/testcases/kernel/syscalls/syscall/.gitignore b/testcases/kernel/syscalls/syscall/.gitignore > index 74a081e40cb564e874e0f81478d3d1a0e95b6df4..fed1d81079450a7442023447285cd112924f7a10 100644 > --- a/testcases/kernel/syscalls/syscall/.gitignore > +++ b/testcases/kernel/syscalls/syscall/.gitignore > @@ -1 +1,2 @@ > /syscall01 > +/syscall02 > diff --git a/testcases/kernel/syscalls/syscall/syscall02.c b/testcases/kernel/syscalls/syscall/syscall02.c > new file mode 100644 > index 0000000000000000000000000000000000000000..2fefcb17c763813653a6644759c2a035bee2c604 > --- /dev/null > +++ b/testcases/kernel/syscalls/syscall/syscall02.c > @@ -0,0 +1,31 @@ > +// SPDX-License-Identifier: GPL-2.0-or-later > +/* > + * Copyright (c) 2026 SUSE LLC Andrea Cervesato > + */ > + > +/*\ > + * Verify that a raw :manpage:`syscall(2)` with the invalid system call > + * number -1 fails with ENOSYS. > + * > + * The behavior of number -1 is architecture specific, so the test only runs on > + * the architectures where it has been verified against the kernel entry code. > + */ > + > +#define _GNU_SOURCE > +#include > + > +#include "tst_test.h" > + > +static void run(void) > +{ > + TST_EXP_FAIL2(syscall(-1), ENOSYS, "invalid syscall number -1"); > +} > + > +static struct tst_test test = { > + .test_all = run, > + .supported_archs = (const char *const []) { > + "x86_64", > + "aarch64", > + NULL > + }, > +}; I do not think that there is an architecture that has a valid syscall mapped to -1. I do not think that we need to restrict the architecture here. -- Cyril Hrubis chrubis@suse.cz -- Mailing list info: https://lists.linux.it/listinfo/ltp