diff options
Diffstat (limited to 'arch/mips/kernel/vdso.c')
| -rw-r--r-- | arch/mips/kernel/vdso.c | 26 |
1 files changed, 15 insertions, 11 deletions
diff --git a/arch/mips/kernel/vdso.c b/arch/mips/kernel/vdso.c index bc35f8499111..3adb7354bc01 100644 --- a/arch/mips/kernel/vdso.c +++ b/arch/mips/kernel/vdso.c @@ -71,10 +71,12 @@ subsys_initcall(init_vdso); static unsigned long vdso_base(void) { - unsigned long base; + unsigned long base = STACK_TOP; - /* Skip the delay slot emulation page */ - base = STACK_TOP + PAGE_SIZE; + if (IS_ENABLED(CONFIG_MIPS_FP_SUPPORT)) { + /* Skip the delay slot emulation page */ + base += PAGE_SIZE; + } if (current->flags & PF_RANDOMIZE) { base += get_random_int() & (VDSO_RANDOMIZE_SIZE - 1); @@ -95,14 +97,16 @@ int arch_setup_additional_pages(struct linux_binprm *bprm, int uses_interp) if (down_write_killable(&mm->mmap_sem)) return -EINTR; - /* Map delay slot emulation page */ - base = mmap_region(NULL, STACK_TOP, PAGE_SIZE, - VM_READ | VM_EXEC | - VM_MAYREAD | VM_MAYWRITE | VM_MAYEXEC, - 0, NULL); - if (IS_ERR_VALUE(base)) { - ret = base; - goto out; + if (IS_ENABLED(CONFIG_MIPS_FP_SUPPORT)) { + /* Map delay slot emulation page */ + base = mmap_region(NULL, STACK_TOP, PAGE_SIZE, + VM_READ | VM_EXEC | + VM_MAYREAD | VM_MAYWRITE | VM_MAYEXEC, + 0, NULL); + if (IS_ERR_VALUE(base)) { + ret = base; + goto out; + } } /* |