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Diffstat (limited to 'arch/x86/include/asm/elf.h')
-rw-r--r--arch/x86/include/asm/elf.h28
1 files changed, 17 insertions, 11 deletions
diff --git a/arch/x86/include/asm/elf.h b/arch/x86/include/asm/elf.h
index 3762536619f8..e8ab9a46bc68 100644
--- a/arch/x86/include/asm/elf.h
+++ b/arch/x86/include/asm/elf.h
@@ -293,8 +293,23 @@ do { \
} \
} while (0)
+/*
+ * True on X86_32 or when emulating IA32 on X86_64
+ */
+static inline int mmap_is_ia32(void)
+{
+ return IS_ENABLED(CONFIG_X86_32) ||
+ (IS_ENABLED(CONFIG_COMPAT) &&
+ test_thread_flag(TIF_ADDR32));
+}
+
+extern unsigned long tasksize_32bit(void);
+extern unsigned long tasksize_64bit(void);
+extern unsigned long get_mmap_base(int is_legacy);
+
#ifdef CONFIG_X86_32
+#define __STACK_RND_MASK(is32bit) (0x7ff)
#define STACK_RND_MASK (0x7ff)
#define ARCH_DLINFO ARCH_DLINFO_IA32
@@ -304,7 +319,8 @@ do { \
#else /* CONFIG_X86_32 */
/* 1GB for 64bit, 8MB for 32bit */
-#define STACK_RND_MASK (test_thread_flag(TIF_ADDR32) ? 0x7ff : 0x3fffff)
+#define __STACK_RND_MASK(is32bit) ((is32bit) ? 0x7ff : 0x3fffff)
+#define STACK_RND_MASK __STACK_RND_MASK(mmap_is_ia32())
#define ARCH_DLINFO \
do { \
@@ -348,16 +364,6 @@ extern int compat_arch_setup_additional_pages(struct linux_binprm *bprm,
int uses_interp);
#define compat_arch_setup_additional_pages compat_arch_setup_additional_pages
-/*
- * True on X86_32 or when emulating IA32 on X86_64
- */
-static inline int mmap_is_ia32(void)
-{
- return IS_ENABLED(CONFIG_X86_32) ||
- (IS_ENABLED(CONFIG_COMPAT) &&
- test_thread_flag(TIF_ADDR32));
-}
-
/* Do not change the values. See get_align_mask() */
enum align_flags {
ALIGN_VA_32 = BIT(0),