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linux/arch/s390
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Martin Schwidefsky 4ba2815d3b s390/mm: align 64-bit PIE binaries to 4GB 
The base address (STACK_TOP / 3 * 2) for a 64-bit program is two thirds
into the 4GB segment at 0x2aa00000000. The randomization added on z13
can eat another 1GB of the remaining 1.33GB to the next 4GB boundary.
In the worst case 300MB are left for the executable + bss which may
cross into the next 4GB segment. This is bad for branch prediction,
therefore align the base address to 4GB to give the program more room
before it crosses the 4GB boundary.

Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2015-02-19 10:36:32 +01:00
..
appldata s390: appldata: drop owner assignment from platform_drivers 2014-10-20 16:20:13 +02:00
boot s390/sclp: fix declaration of _sclp_print_early() 2015-01-08 10:02:51 +01:00
configs s390: update default configuration 2015-01-22 12:16:09 +01:00
crypto s390/crypto: remove 'const' to avoid compiler warnings 2015-01-08 10:02:53 +01:00
hypfs s390/hypfs: Eliminate hypfs interval 2015-02-10 16:39:02 +01:00
include s390/topology: convert cpu_topology array to per cpu variable 2015-02-12 09:37:22 +01:00
kernel s390/cacheinfo: coding style changes 2015-02-12 09:37:24 +01:00
kvm rcu: Make SRCU optional by using CONFIG_SRCU 2015-01-06 11:04:29 -08:00
lib s390/spinlock: add compare-and-delay to lock wait loops 2015-01-23 15:17:04 +01:00
math-emu s390: fix save and restore of the floating-point-control register 2013-10-24 17:17:11 +02:00
mm s390/mm: align 64-bit PIE binaries to 4GB 2015-02-19 10:36:32 +01:00
net s390/bpf: Zero extend parameters before calling C function 2015-01-15 11:10:41 +01:00
oprofile s390: Replace __get_cpu_var uses 2014-08-26 13:45:52 -04:00
pci s390/pci: add missing address space annotation 2015-01-08 10:02:47 +01:00
defconfig s390: update default configuration 2015-01-22 12:16:09 +01:00
Kbuild
Kconfig s390/smp: increase maximum value of NR_CPUS to 512 2015-01-30 09:31:13 +01:00
Kconfig.debug Kconfig: consolidate CONFIG_DEBUG_STRICT_USER_COPY_CHECKS 2013-04-30 17:04:09 -07:00
Makefile s390/ftrace: hotpatch support for function tracing 2015-01-29 09:19:25 +01:00