aboutsummaryrefslogtreecommitdiff
path: root/arch/c6x/include
diff options
context:
space:
mode:
Diffstat (limited to 'arch/c6x/include')
-rw-r--r--arch/c6x/include/asm/elf.h14
-rw-r--r--arch/c6x/include/asm/mmu.h4
-rw-r--r--arch/c6x/include/asm/ptrace.h5
-rw-r--r--arch/c6x/include/asm/thread_info.h17
4 files changed, 24 insertions, 16 deletions
diff --git a/arch/c6x/include/asm/elf.h b/arch/c6x/include/asm/elf.h
index d57865ba2c4..f4552db20b4 100644
--- a/arch/c6x/include/asm/elf.h
+++ b/arch/c6x/include/asm/elf.h
@@ -30,7 +30,19 @@ typedef elf_fpreg_t elf_fpregset_t[ELF_NFPREG];
*/
#define elf_check_arch(x) ((x)->e_machine == EM_TI_C6000)
-#define elf_check_const_displacement(x) (1)
+#define elf_check_fdpic(x) (1)
+#define elf_check_const_displacement(x) (0)
+
+#define ELF_FDPIC_PLAT_INIT(_regs, _exec_map, _interp_map, _dynamic_addr) \
+do { \
+ _regs->b4 = (_exec_map); \
+ _regs->a6 = (_interp_map); \
+ _regs->b6 = (_dynamic_addr); \
+} while (0)
+
+#define ELF_FDPIC_CORE_EFLAGS 0
+
+#define ELF_CORE_COPY_FPREGS(...) 0 /* No FPU regs to copy */
/*
* These are used to set parameters in the core dumps.
diff --git a/arch/c6x/include/asm/mmu.h b/arch/c6x/include/asm/mmu.h
index 41592bf1606..4467e770a1c 100644
--- a/arch/c6x/include/asm/mmu.h
+++ b/arch/c6x/include/asm/mmu.h
@@ -13,6 +13,10 @@
typedef struct {
unsigned long end_brk;
+#ifdef CONFIG_BINFMT_ELF_FDPIC
+ unsigned long exec_fdpic_loadmap;
+ unsigned long interp_fdpic_loadmap;
+#endif
} mm_context_t;
#endif /* _ASM_C6X_MMU_H */
diff --git a/arch/c6x/include/asm/ptrace.h b/arch/c6x/include/asm/ptrace.h
index 21e8d7931fe..b04ff596425 100644
--- a/arch/c6x/include/asm/ptrace.h
+++ b/arch/c6x/include/asm/ptrace.h
@@ -97,6 +97,11 @@
#define PT_DP PT_B14 /* Data Segment Pointer (B14) */
#define PT_SP PT_B15 /* Stack Pointer (B15) */
+#define PTRACE_GETFDPIC 31 /* get the ELF fdpic loadmap address */
+
+#define PTRACE_GETFDPIC_EXEC 0 /* [addr] request the executable loadmap */
+#define PTRACE_GETFDPIC_INTERP 1 /* [addr] request the interpreter loadmap */
+
#ifndef __ASSEMBLY__
#ifdef _BIG_ENDIAN
diff --git a/arch/c6x/include/asm/thread_info.h b/arch/c6x/include/asm/thread_info.h
index fd99148cda9..1710bcbb8d0 100644
--- a/arch/c6x/include/asm/thread_info.h
+++ b/arch/c6x/include/asm/thread_info.h
@@ -20,11 +20,11 @@
#ifdef CONFIG_4KSTACKS
#define THREAD_SIZE 4096
#define THREAD_SHIFT 12
-#define THREAD_ORDER 0
+#define THREAD_SIZE_ORDER 0
#else
#define THREAD_SIZE 8192
#define THREAD_SHIFT 13
-#define THREAD_ORDER 1
+#define THREAD_SIZE_ORDER 1
#endif
#define THREAD_START_SP (THREAD_SIZE - 8)
@@ -80,19 +80,6 @@ struct thread_info *current_thread_info(void)
return ti;
}
-#define __HAVE_ARCH_THREAD_INFO_ALLOCATOR
-
-/* thread information allocation */
-#ifdef CONFIG_DEBUG_STACK_USAGE
-#define THREAD_FLAGS (GFP_KERNEL | __GFP_NOTRACK | __GFP_ZERO)
-#else
-#define THREAD_FLAGS (GFP_KERNEL | __GFP_NOTRACK)
-#endif
-
-#define alloc_thread_info_node(tsk, node) \
- ((struct thread_info *)__get_free_pages(THREAD_FLAGS, THREAD_ORDER))
-
-#define free_thread_info(ti) free_pages((unsigned long) (ti), THREAD_ORDER)
#define get_thread_info(ti) get_task_struct((ti)->task)
#define put_thread_info(ti) put_task_struct((ti)->task)
#endif /* __ASSEMBLY__ */