diff options
Diffstat (limited to 'arch/x86/include')
| -rw-r--r-- | arch/x86/include/asm/elf.h | 20 |
1 files changed, 13 insertions, 7 deletions
diff --git a/arch/x86/include/asm/elf.h b/arch/x86/include/asm/elf.h index 2c71182d30e..e96df2c0dd6 100644 --- a/arch/x86/include/asm/elf.h +++ b/arch/x86/include/asm/elf.h @@ -75,7 +75,12 @@ typedef struct user_fxsr_struct elf_fpxregset_t; #include <asm/vdso.h> -extern unsigned int vdso_enabled; +#ifdef CONFIG_X86_64 +extern unsigned int vdso64_enabled; +#endif +#if defined(CONFIG_X86_32) || defined(CONFIG_COMPAT) +extern unsigned int vdso32_enabled; +#endif /* * This is used to ensure we don't load something for the wrong architecture. @@ -269,9 +274,9 @@ extern int force_personality32; struct task_struct; -#define ARCH_DLINFO_IA32(vdso_enabled) \ +#define ARCH_DLINFO_IA32 \ do { \ - if (vdso_enabled) { \ + if (vdso32_enabled) { \ NEW_AUX_ENT(AT_SYSINFO, VDSO_ENTRY); \ NEW_AUX_ENT(AT_SYSINFO_EHDR, VDSO_CURRENT_BASE); \ } \ @@ -281,7 +286,7 @@ do { \ #define STACK_RND_MASK (0x7ff) -#define ARCH_DLINFO ARCH_DLINFO_IA32(vdso_enabled) +#define ARCH_DLINFO ARCH_DLINFO_IA32 /* update AT_VECTOR_SIZE_ARCH if the number of NEW_AUX_ENT entries changes */ @@ -292,14 +297,15 @@ do { \ #define ARCH_DLINFO \ do { \ - if (vdso_enabled) \ + if (vdso64_enabled) \ NEW_AUX_ENT(AT_SYSINFO_EHDR, \ (unsigned long)current->mm->context.vdso); \ } while (0) +/* As a historical oddity, the x32 and x86_64 vDSOs are controlled together. */ #define ARCH_DLINFO_X32 \ do { \ - if (vdso_enabled) \ + if (vdso64_enabled) \ NEW_AUX_ENT(AT_SYSINFO_EHDR, \ (unsigned long)current->mm->context.vdso); \ } while (0) @@ -310,7 +316,7 @@ do { \ if (test_thread_flag(TIF_X32)) \ ARCH_DLINFO_X32; \ else \ - ARCH_DLINFO_IA32(sysctl_vsyscall32) + ARCH_DLINFO_IA32 #define COMPAT_ELF_ET_DYN_BASE (TASK_UNMAPPED_BASE + 0x1000000) |