#include <asm/user.h>
#include <asm/processor.h>
#include <asm/system.h> /* for savesegment */
+#include <asm/desc.h>
#include <linux/utsname.h>
#define AT_SYSINFO_EHDR 33
#ifdef __KERNEL__
-#define SET_PERSONALITY(ex, ibcs2) set_personality((ibcs2)?PER_SVR4:PER_LINUX)
+/* child inherits the personality of the parent */
+#define SET_PERSONALITY(ex, ibcs2) do { } while (0)
extern int dump_task_regs (struct task_struct *, elf_gregset_t *);
extern int dump_task_fpu (struct task_struct *, elf_fpregset_t *);
#define ELF_CORE_COPY_FPREGS(tsk, elf_fpregs) dump_task_fpu(tsk, elf_fpregs)
#define ELF_CORE_COPY_XFPREGS(tsk, elf_xfpregs) dump_task_extended_fpu(tsk, elf_xfpregs)
-#define VSYSCALL_BASE (__fix_to_virt(FIX_VSYSCALL))
-#define VSYSCALL_EHDR ((const struct elfhdr *) VSYSCALL_BASE)
-#define VSYSCALL_ENTRY ((unsigned long) &__kernel_vsyscall)
extern void __kernel_vsyscall;
-
-#define ARCH_DLINFO \
-do { \
- NEW_AUX_ENT(AT_SYSINFO, VSYSCALL_ENTRY); \
- NEW_AUX_ENT(AT_SYSINFO_EHDR, VSYSCALL_BASE); \
+#define VSYSCALL_BASE ((unsigned long)current->mm->context.vdso)
+#define VSYSCALL_EHDR ((const struct elfhdr *) VSYSCALL_BASE)
+#define VSYSCALL_OFFSET ((unsigned long) &__kernel_vsyscall)
+#define VSYSCALL_ENTRY (VSYSCALL_BASE + VSYSCALL_OFFSET)
+
+/* kernel-internal fixmap address: */
+#define __VSYSCALL_BASE (__fix_to_virt(FIX_VSYSCALL))
+#define __VSYSCALL_EHDR ((const struct elfhdr *) __VSYSCALL_BASE)
+
+#define ARCH_DLINFO \
+do { \
+ if (VSYSCALL_BASE) { \
+ NEW_AUX_ENT(AT_SYSINFO, VSYSCALL_ENTRY); \
+ NEW_AUX_ENT(AT_SYSINFO_EHDR, VSYSCALL_BASE); \
+ } \
} while (0)
/*
* Dumping its extra ELF program headers includes all the other information
* a debugger needs to easily find how the vsyscall DSO was being used.
*/
-#define ELF_CORE_EXTRA_PHDRS (VSYSCALL_EHDR->e_phnum)
+#define ELF_CORE_EXTRA_PHDRS (__VSYSCALL_EHDR->e_phnum)
#define ELF_CORE_WRITE_EXTRA_PHDRS \
do { \
const struct elf_phdr *const vsyscall_phdrs = \
- (const struct elf_phdr *) (VSYSCALL_BASE \
- + VSYSCALL_EHDR->e_phoff); \
+ (const struct elf_phdr *) (__VSYSCALL_BASE \
+ + __VSYSCALL_EHDR->e_phoff); \
int i; \
Elf32_Off ofs = 0; \
- for (i = 0; i < VSYSCALL_EHDR->e_phnum; ++i) { \
+ for (i = 0; i < __VSYSCALL_EHDR->e_phnum; ++i) { \
struct elf_phdr phdr = vsyscall_phdrs[i]; \
if (phdr.p_type == PT_LOAD) { \
BUG_ON(ofs != 0); \
#define ELF_CORE_WRITE_EXTRA_DATA \
do { \
const struct elf_phdr *const vsyscall_phdrs = \
- (const struct elf_phdr *) (VSYSCALL_BASE \
- + VSYSCALL_EHDR->e_phoff); \
+ (const struct elf_phdr *) (__VSYSCALL_BASE \
+ + __VSYSCALL_EHDR->e_phoff); \
int i; \
- for (i = 0; i < VSYSCALL_EHDR->e_phnum; ++i) { \
+ for (i = 0; i < __VSYSCALL_EHDR->e_phnum; ++i) { \
if (vsyscall_phdrs[i].p_type == PT_LOAD) \
DUMP_WRITE((void *) vsyscall_phdrs[i].p_vaddr, \
PAGE_ALIGN(vsyscall_phdrs[i].p_memsz)); \
#endif
+#define __HAVE_ARCH_RANDOMIZE_BRK
+extern void randomize_brk(unsigned long old_brk);
+
+#define __HAVE_ARCH_VSYSCALL
+extern void map_vsyscall(void);
+
#endif