diff options
author | Stefan Agner <stefan.agner@toradex.com> | 2017-09-26 16:04:08 +0200 |
---|---|---|
committer | Stefan Agner <stefan.agner@toradex.com> | 2017-09-26 18:11:18 +0200 |
commit | 1f4d46cea2bc1886a13ae9adfcd9e4243eed6a4c (patch) | |
tree | 2001999c70f8e46b192fc552590810aab35710e3 /arch/s390/include | |
parent | d152ae9d4704d8c7b3775e3b1a20e62aa3b1eed8 (diff) | |
parent | b52c9082f2eb3a6f7fbbc86fad3eaa2a1725da66 (diff) |
Merge tag 'v4.4.88' into toradex_vf_4.4-next
This is the 4.4.88 stable release
Diffstat (limited to 'arch/s390/include')
-rw-r--r-- | arch/s390/include/asm/ctl_reg.h | 4 | ||||
-rw-r--r-- | arch/s390/include/asm/elf.h | 15 | ||||
-rw-r--r-- | arch/s390/include/asm/syscall.h | 6 |
3 files changed, 16 insertions, 9 deletions
diff --git a/arch/s390/include/asm/ctl_reg.h b/arch/s390/include/asm/ctl_reg.h index d7697ab802f6..8e136b88cdf4 100644 --- a/arch/s390/include/asm/ctl_reg.h +++ b/arch/s390/include/asm/ctl_reg.h @@ -15,7 +15,9 @@ BUILD_BUG_ON(sizeof(addrtype) != (high - low + 1) * sizeof(long));\ asm volatile( \ " lctlg %1,%2,%0\n" \ - : : "Q" (*(addrtype *)(&array)), "i" (low), "i" (high));\ + : \ + : "Q" (*(addrtype *)(&array)), "i" (low), "i" (high) \ + : "memory"); \ } #define __ctl_store(array, low, high) { \ diff --git a/arch/s390/include/asm/elf.h b/arch/s390/include/asm/elf.h index bab6739a1154..b9eb7b1a49d2 100644 --- a/arch/s390/include/asm/elf.h +++ b/arch/s390/include/asm/elf.h @@ -154,14 +154,13 @@ extern unsigned int vdso_enabled; #define CORE_DUMP_USE_REGSET #define ELF_EXEC_PAGESIZE 4096 -/* This is the location that an ET_DYN program is loaded if exec'ed. Typical - use of this is to invoke "./ld.so someprog" to test out a new version of - the loader. We need to make sure that it is out of the way of the program - that it will "exec", and that there is sufficient room for the brk. 64-bit - tasks are aligned to 4GB. */ -#define ELF_ET_DYN_BASE (is_32bit_task() ? \ - (STACK_TOP / 3 * 2) : \ - (STACK_TOP / 3 * 2) & ~((1UL << 32) - 1)) +/* + * This is the base location for PIE (ET_DYN with INTERP) loads. On + * 64-bit, this is raised to 4GB to leave the entire 32-bit address + * space open for things that want to use the area for 32-bit pointers. + */ +#define ELF_ET_DYN_BASE (is_compat_task() ? 0x000400000UL : \ + 0x100000000UL) /* This yields a mask that user programs can use to figure out what instruction set this CPU supports. */ diff --git a/arch/s390/include/asm/syscall.h b/arch/s390/include/asm/syscall.h index 6ba0bf928909..6bc941be6921 100644 --- a/arch/s390/include/asm/syscall.h +++ b/arch/s390/include/asm/syscall.h @@ -64,6 +64,12 @@ static inline void syscall_get_arguments(struct task_struct *task, { unsigned long mask = -1UL; + /* + * No arguments for this syscall, there's nothing to do. + */ + if (!n) + return; + BUG_ON(i + n > 6); #ifdef CONFIG_COMPAT if (test_tsk_thread_flag(task, TIF_31BIT)) |