[glibc] hurd: Disable Prefer_MAP_32BIT_EXEC on non-x86_64 for now

[Samuel Thibault <sthibaul@sourceware.org>]

https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=6afeac1289b92bc893613cc9efc9b5c692369e64

commit 6afeac1289b92bc893613cc9efc9b5c692369e64
Author: Sergey Bugaev <bugaevc@gmail.com>
Date:   Sat Mar 23 20:32:45 2024 +0300

    hurd: Disable Prefer_MAP_32BIT_EXEC on non-x86_64 for now
    
    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>
    Message-ID: <20240323173301.151066-5-bugaevc@gmail.com>

Diff:
---
 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 43129a1e74..6ba00e413d 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 7b94561015..30e369f067 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;