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authorDmitry Torokhov <dmitry.torokhov@gmail.com>2019-07-10 23:24:10 -0700
committerDmitry Torokhov <dmitry.torokhov@gmail.com>2019-07-10 23:24:10 -0700
commit597473720f4dc69749542bfcfed4a927a43d935e (patch)
tree711bf773910fb93d1dd9120c633adc807685e0d8 /arch/s390/include/asm/elf.h
parentInput: atmel_mxt_ts - fix leak in mxt_update_cfg() (diff)
parentInput: gpio_keys_polled - allow specifying name of input device (diff)
downloadlinux-dev-597473720f4dc69749542bfcfed4a927a43d935e.tar.xz
linux-dev-597473720f4dc69749542bfcfed4a927a43d935e.zip
Merge branch 'next' into for-linus
Prepare input updates for 5.3 merge window.
Diffstat (limited to 'arch/s390/include/asm/elf.h')
-rw-r--r--arch/s390/include/asm/elf.h11
1 files changed, 7 insertions, 4 deletions
diff --git a/arch/s390/include/asm/elf.h b/arch/s390/include/asm/elf.h
index 7d22a474a040..f74639a05f0f 100644
--- a/arch/s390/include/asm/elf.h
+++ b/arch/s390/include/asm/elf.h
@@ -252,11 +252,14 @@ do { \
/*
* Cache aliasing on the latest machines calls for a mapping granularity
- * of 512KB. For 64-bit processes use a 512KB alignment and a randomization
- * of up to 1GB. For 31-bit processes the virtual address space is limited,
- * use no alignment and limit the randomization to 8MB.
+ * of 512KB for the anonymous mapping base. For 64-bit processes use a
+ * 512KB alignment and a randomization of up to 1GB. For 31-bit processes
+ * the virtual address space is limited, use no alignment and limit the
+ * randomization to 8MB.
+ * For the additional randomization of the program break use 32MB for
+ * 64-bit and 8MB for 31-bit.
*/
-#define BRK_RND_MASK (is_compat_task() ? 0x7ffUL : 0x3ffffUL)
+#define BRK_RND_MASK (is_compat_task() ? 0x7ffUL : 0x1fffUL)
#define MMAP_RND_MASK (is_compat_task() ? 0x7ffUL : 0x3ff80UL)
#define MMAP_ALIGN_MASK (is_compat_task() ? 0 : 0x7fUL)
#define STACK_RND_MASK MMAP_RND_MASK