kernel.git/arch/s390/include/asm/elf.h, branch linux-3.1.y

[S390] Do not clobber personality flags on exec

2011-09-26T14:40:50Z

Analog to git commit 59e4c3a2fe9cb1681bb2cff508ff79466f7585ba do not clear the additional personality flags on exec. We need to inherit the personality bits in PER_MASK across exec. Signed-off-by: Martin Schwidefsky

[S390] Remove data execution protection

2011-05-23T08:24:28Z

The noexec support on s390 does not rely on a bit in the page table entry but utilizes the secondary space mode to distinguish between memory accesses for instructions vs. data. The noexec code relies on the assumption that the cpu will always use the secondary space page table for data accesses while it is running in the secondary space mode. Up to the z9-109 class machines this has been the case. Unfortunately this is not true anymore with z10 and later machines. The load-relative-long instructions lrl, lgrl and lgfrl access the memory operand using the same addressing-space mode that has been used to fetch the instruction. This breaks the noexec mode for all user space binaries compiled with march=z10 or later. The only option is to remove the current noexec support. Signed-off-by: Martin Schwidefsky

[S390] Randomize PIEs

2011-01-12T08:55:25Z

Randomize ELF_ET_DYN_BASE, which is used when loading position independent executables. Signed-off-by: Heiko Carstens Signed-off-by: Martin Schwidefsky

[S390] Randomise the brk region

2011-01-12T08:55:25Z

Randomize heap address like other architectures do already. Signed-off-by: Heiko Carstens Signed-off-by: Martin Schwidefsky

[S390] mmap: consider stack address randomization

2011-01-12T08:55:24Z

Consider stack address randomization when calulating mmap_base for flexible mmap layout . Because of address randomization the stack address can be up to 8MB lower than STACK_TOP. When calculating mmap_base this isn't taken into account, which could lead to the case that the gap between the real stack top and mmap_base is lower than what ulimit specifies for the maximum stack size. Signed-off-by: Heiko Carstens Signed-off-by: Martin Schwidefsky

elf: kill USE_ELF_CORE_DUMP

2009-12-16T15:20:12Z

Currently all architectures but microblaze unconditionally define USE_ELF_CORE_DUMP. The microblaze omission seems like an error to me, so let's kill this ifdef and make sure we are the same everywhere. Signed-off-by: Christoph Hellwig Acked-by: Hugh Dickins Cc: Cc: Michal Simek Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds

[S390] 64-bit register support for 31-bit processes

2009-10-06T08:35:10Z

From: Heiko Carstens From: Martin Schwidefsky Signed-off-by: Heiko Carstens Signed-off-by: Martin Schwidefsky

[S390] personality: fix personality loss on execve

2009-01-23T15:40:28Z

Use the personality() macro to mask out all bits that are not relevant for the personality type. The personality field contains bits for other things as well, so without masking out the not relevalent bits the comparison won't do what is expected. Reported-by: Andreas Krebbel Signed-off-by: Heiko Carstens

[S390] introduce vdso on s390

2008-12-25T12:38:55Z

Add a vdso to speed up gettimeofday and clock_getres/clock_gettime for CLOCK_REALTIME/CLOCK_MONOTONIC. Signed-off-by: Martin Schwidefsky

[PATCH] remove unused ibcs2/PER_SVR4 in SET_PERSONALITY

2008-10-16T13:40:05Z

The SET_PERSONALITY macro is always called with a second argument of 0. Remove the ibcs argument and the various tests to set the PER_SVR4 personality. Signed-off-by: Martin Schwidefsky