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[PATCH v2 04/20] hurd: Disable Prefer_MAP_32BIT_EXEC on non-x86_64 for n
From: |
Sergey Bugaev |
Subject: |
[PATCH v2 04/20] hurd: Disable Prefer_MAP_32BIT_EXEC on non-x86_64 for now |
Date: |
Sat, 23 Mar 2024 20:32:45 +0300 |
While we could support it on any architecture, the tunable is currently
only defined on x86_64.
Signed-off-by: Sergey Bugaev <bugaevc@gmail.com>
---
sysdeps/mach/hurd/dl-sysdep.c | 2 +-
sysdeps/mach/hurd/mmap.c | 2 +-
2 files changed, 2 insertions(+), 2 deletions(-)
diff --git a/sysdeps/mach/hurd/dl-sysdep.c b/sysdeps/mach/hurd/dl-sysdep.c
index 43129a1e..6ba00e41 100644
--- a/sysdeps/mach/hurd/dl-sysdep.c
+++ b/sysdeps/mach/hurd/dl-sysdep.c
@@ -457,7 +457,7 @@ __mmap (void *addr, size_t len, int prot, int flags, int
fd, off_t offset)
if (prot & PROT_EXEC)
vmprot |= VM_PROT_EXECUTE;
-#ifdef __LP64__
+#ifdef __x86_64__
if ((addr == NULL) && (prot & PROT_EXEC)
&& HAS_ARCH_FEATURE (Prefer_MAP_32BIT_EXEC))
flags |= MAP_32BIT;
diff --git a/sysdeps/mach/hurd/mmap.c b/sysdeps/mach/hurd/mmap.c
index 7b945610..30e369f0 100644
--- a/sysdeps/mach/hurd/mmap.c
+++ b/sysdeps/mach/hurd/mmap.c
@@ -60,7 +60,7 @@ __mmap (void *addr, size_t len, int prot, int flags, int fd,
off_t offset)
copy = ! (flags & MAP_SHARED);
anywhere = ! (flags & MAP_FIXED);
-#ifdef __LP64__
+#ifdef __x86_64__
if ((addr == NULL) && (prot & PROT_EXEC)
&& HAS_ARCH_FEATURE (Prefer_MAP_32BIT_EXEC))
flags |= MAP_32BIT;
--
2.44.0
- [PATCH v2 00/20] aarch64-gnu port & GNU/Hurd on AArch64 progress, Sergey Bugaev, 2024/03/23
- [PATCH v2 01/20] hurd: Move internal functions to internal header, Sergey Bugaev, 2024/03/23
- [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 <=
- [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, 2024/03/23
- [PATCH v2 12/20] mach: Declare the new thread_set_self_state () trap, Sergey Bugaev, 2024/03/23