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([2a00:1370:818c:b32f:ebdc:fd0:376b:8006]) by smtp.gmail.com with ESMTPSA id y23-20020a196417000000b0050e6d84d177sm3546068lfb.279.2024.01.03.09.15.16 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 03 Jan 2024 09:15:17 -0800 (PST) From: Sergey Bugaev To: libc-alpha@sourceware.org, bug-hurd@gnu.org Subject: [RFC PATCH 14/23] aarch64: Allow building without kernel support for BTI Date: Wed, 3 Jan 2024 20:14:47 +0300 Message-ID: <20240103171502.1358371-15-bugaevc@gmail.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20240103171502.1358371-1-bugaevc@gmail.com> References: <20240103171502.1358371-1-bugaevc@gmail.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-BeenThere: libc-alpha@sourceware.org X-Mailman-Version: 2.1.30 Precedence: list List-Id: Libc-alpha mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: libc-alpha-bounces+e=80x24.org@sourceware.org If PROT_BTI is not defined, turn _dl_bti_protect () into a no-op. We intend to support BTI & PROT_BTI on the Hurd eventually, but we're not there yet. Signed-off-by: Sergey Bugaev --- sysdeps/aarch64/dl-bti.c | 10 ++++++++++ 1 file changed, 10 insertions(+) diff --git a/sysdeps/aarch64/dl-bti.c b/sysdeps/aarch64/dl-bti.c index fd0d308a..4cf85630 100644 --- a/sysdeps/aarch64/dl-bti.c +++ b/sysdeps/aarch64/dl-bti.c @@ -28,6 +28,7 @@ /* Enable BTI protection for MAP. */ +#ifdef PROT_BTI void _dl_bti_protect (struct link_map *map, int fd) { @@ -59,6 +60,15 @@ _dl_bti_protect (struct link_map *map, int fd) } } +#else /* PROT_BTI */ +void +_dl_bti_protect (struct link_map *map, int fd) +{ + (void) map; + (void) fd; +} +#endif + static void bti_failed (struct link_map *l, const char *program) -- 2.43.0