From 01004f9796fd7a5223a40802026d2023e3f9cf28 Mon Sep 17 00:00:00 2001
From: Denys Vlasenko <vda.linux@googlemail.com>
Date: Tue, 15 Dec 2020 21:24:04 +0100
Subject: [PATCH] libbb: enable fixed 4k pagesize for 32bit ARM

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
---
 include/libbb.h | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/include/libbb.h b/include/libbb.h
index db5bf7a51..202e3f39c 100644
--- a/include/libbb.h
+++ b/include/libbb.h
@@ -393,8 +393,13 @@ void *xmmap_anon(size_t size) FAST_FUNC;
 
 #if defined(__x86_64__) || defined(i386)
 # define BB_ARCH_FIXED_PAGESIZE 4096
+#elif defined(__arm__) /* only 32bit, 64bit ARM has variable page size */
+# define BB_ARCH_FIXED_PAGESIZE 4096
 #else /* if defined(ARCH) */
 /* add you favorite arch today! */
+//From Linux kernel inspection:
+//xtenza,s390[x],riscv,nios2,csky,sparc32: fixed 4k pages
+//sparc64,alpha,openrisc: fixed 8k pages
 #endif
 
 #if defined BB_ARCH_FIXED_PAGESIZE