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-rw-r--r--arch/s390/include/asm/elf.h32
1 files changed, 32 insertions, 0 deletions
diff --git a/arch/s390/include/asm/elf.h b/arch/s390/include/asm/elf.h
index e8f6230..ec024c0 100644
--- a/arch/s390/include/asm/elf.h
+++ b/arch/s390/include/asm/elf.h
@@ -117,6 +117,9 @@
#define ELF_DATA ELFDATA2MSB
#define ELF_ARCH EM_S390
+/* s390 specific phdr types */
+#define PT_S390_PGSTE 0x70000000
+
/*
* ELF register definitions..
*/
@@ -151,6 +154,35 @@ extern unsigned int vdso_enabled;
&& (x)->e_ident[EI_CLASS] == ELF_CLASS)
#define compat_start_thread start_thread31
+struct arch_elf_state {
+ int rc;
+};
+
+#define INIT_ARCH_ELF_STATE { .rc = 0 }
+
+#define arch_check_elf(ehdr, interp, interp_ehdr, state) (0)
+#ifdef CONFIG_PGSTE
+#define arch_elf_pt_proc(ehdr, phdr, elf, interp, state) \
+({ \
+ struct arch_elf_state *_state = state; \
+ if ((phdr)->p_type == PT_S390_PGSTE && \
+ !page_table_allocate_pgste && \
+ !test_thread_flag(TIF_PGSTE) && \
+ !current->mm->context.alloc_pgste) { \
+ set_thread_flag(TIF_PGSTE); \
+ set_pt_regs_flag(task_pt_regs(current), \
+ PIF_SYSCALL_RESTART); \
+ _state->rc = -EAGAIN; \
+ } \
+ _state->rc; \
+})
+#else
+#define arch_elf_pt_proc(ehdr, phdr, elf, interp, state) \
+({ \
+ (state)->rc; \
+})
+#endif
+
/* For SVR4/S390 the function pointer to be registered with `atexit` is
passed in R14. */
#define ELF_PLAT_INIT(_r, load_addr) \
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