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[PATCH v2 10/20] aarch64: Allow building without kernel support for BTI
From: |
Sergey Bugaev |
Subject: |
[PATCH v2 10/20] aarch64: Allow building without kernel support for BTI |
Date: |
Sat, 23 Mar 2024 20:32:51 +0300 |
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 <bugaevc@gmail.com>
---
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)
--
2.44.0
- [PATCH v2 05/20] hurd: Use the RETURN_ADDRESS macro, (continued)
- [PATCH v2 05/20] hurd: Use the RETURN_ADDRESS macro, Sergey Bugaev, 2024/03/23
- [PATCH v2 04/20] hurd: Disable Prefer_MAP_32BIT_EXEC on non-x86_64 for now, Sergey Bugaev, 2024/03/23
- [PATCH v2 06/20] htl: Respect GL(dl_stack_flags) when allocating stacks, Sergey Bugaev, 2024/03/23
- [PATCH v2 08/20] aarch64: Add dl-procinfo, Sergey Bugaev, 2024/03/23
- [PATCH v2 11/20] mach: Add a basic AArch64 port, Sergey Bugaev, 2024/03/23
- [PATCH v2 13/20] hurd: Add a basic AArch64 port, Sergey Bugaev, 2024/03/23
- [PATCH v2 18/20] htl: Implement some support for TLS_DTV_AT_TP, Sergey Bugaev, 2024/03/23
- [PATCH v2 02/20] hurd: Stop relying on VM_MAX_ADDRESS, Sergey Bugaev, 2024/03/23
- [PATCH v2 03/20] Allow glibc to be compiled without EXEC_PAGESIZE, Sergey Bugaev, 2024/03/23
- [PATCH v2 07/20] aarch64: Move pointer_guard.h out of sysdeps/unix/sysv/linux, Sergey Bugaev, 2024/03/23
- [PATCH v2 10/20] aarch64: Allow building without kernel support for BTI,
Sergey Bugaev <=
- [PATCH v2 12/20] mach: Declare the new thread_set_self_state () trap, Sergey Bugaev, 2024/03/23
- [PATCH v2 15/20] hurd: Implement longjmp for AArch64, Sergey Bugaev, 2024/03/23
- [PATCH v2 17/20] hurd: Add an AArch64 signal implementation, Sergey Bugaev, 2024/03/23
- [PATCH v2 09/20] aarch64: Move saving user entry into _dl_start_user, Sergey Bugaev, 2024/03/23
- [PATCH v2 14/20] hurd: Implement TLS on AArch64, Sergey Bugaev, 2024/03/23
- [PATCH v2 16/20] Add FPE_FLTIDO, Sergey Bugaev, 2024/03/23
- [PATCH v2 19/20] htl: Add an AArch64 implementation, Sergey Bugaev, 2024/03/23
- [PATCH v2 20/20] hurd: Add expected aarch64-gnu abistlists, Sergey Bugaev, 2024/03/23
- Re: [PATCH v2 00/20] aarch64-gnu port & GNU/Hurd on AArch64 progress, Samuel Thibault, 2024/03/23