1 files changed, 180 insertions, 0 deletions

diff --git a/include/asm-x86/elf_64.h b/include/asm-x86/elf_64.h
new file mode 100644
index 000000000000..b4fbe47f6ccd
--- /dev/null
+++ b/include/asm-x86/elf_64.h
@@ -0,0 +1,180 @@
+#ifndef __ASM_X86_64_ELF_H
+#define __ASM_X86_64_ELF_H
+
+/*
+ * ELF register definitions..
+ */
+
+#include <asm/ptrace.h>
+#include <asm/user.h>
+
+/* x86-64 relocation types */
+#define R_X86_64_NONE           0       /* No reloc */
+#define R_X86_64_64             1       /* Direct 64 bit  */
+#define R_X86_64_PC32           2       /* PC relative 32 bit signed */
+#define R_X86_64_GOT32          3       /* 32 bit GOT entry */
+#define R_X86_64_PLT32          4       /* 32 bit PLT address */
+#define R_X86_64_COPY           5       /* Copy symbol at runtime */
+#define R_X86_64_GLOB_DAT       6       /* Create GOT entry */
+#define R_X86_64_JUMP_SLOT      7       /* Create PLT entry */
+#define R_X86_64_RELATIVE       8       /* Adjust by program base */
+#define R_X86_64_GOTPCREL       9       /* 32 bit signed pc relative
+                                           offset to GOT */
+#define R_X86_64_32             10      /* Direct 32 bit zero extended */
+#define R_X86_64_32S            11      /* Direct 32 bit sign extended */
+#define R_X86_64_16             12      /* Direct 16 bit zero extended */
+#define R_X86_64_PC16           13      /* 16 bit sign extended pc relative */
+#define R_X86_64_8              14      /* Direct 8 bit sign extended  */
+#define R_X86_64_PC8            15      /* 8 bit sign extended pc relative */
+
+#define R_X86_64_NUM            16
+
+typedef unsigned long elf_greg_t;
+
+#define ELF_NGREG (sizeof (struct user_regs_struct) / sizeof(elf_greg_t))
+typedef elf_greg_t elf_gregset_t[ELF_NGREG];
+
+typedef struct user_i387_struct elf_fpregset_t;
+
+/*
+ * These are used to set parameters in the core dumps.
+ */
+#define ELF_CLASS       ELFCLASS64
+#define ELF_DATA        ELFDATA2LSB
+#define ELF_ARCH        EM_X86_64
+
+#ifdef __KERNEL__
+#include <asm/processor.h>
+
+/*
+ * This is used to ensure we don't load something for the wrong architecture.
+ */
+#define elf_check_arch(x) \
+        ((x)->e_machine == EM_X86_64)
+
+
+/* SVR4/i386 ABI (pages 3-31, 3-32) says that when the program starts %edx
+   contains a pointer to a function which might be registered using `atexit'.
+   This provides a mean for the dynamic linker to call DT_FINI functions for
+   shared libraries that have been loaded before the code runs.
+
+   A value of 0 tells we have no such handler. 
+
+   We might as well make sure everything else is cleared too (except for %esp),
+   just to make things more deterministic.
+ */
+#define ELF_PLAT_INIT(_r, load_addr)    do { \
+        struct task_struct *cur = current; \
+        (_r)->rbx = 0; (_r)->rcx = 0; (_r)->rdx = 0; \
+        (_r)->rsi = 0; (_r)->rdi = 0; (_r)->rbp = 0; \
+        (_r)->rax = 0;                          \
+        (_r)->r8 = 0;                           \
+        (_r)->r9 = 0;                           \
+        (_r)->r10 = 0;                          \
+        (_r)->r11 = 0;                          \
+        (_r)->r12 = 0;                          \
+        (_r)->r13 = 0;                          \
+        (_r)->r14 = 0;                          \
+        (_r)->r15 = 0;                          \
+        cur->thread.fs = 0; cur->thread.gs = 0; \
+        cur->thread.fsindex = 0; cur->thread.gsindex = 0; \
+        cur->thread.ds = 0; cur->thread.es = 0;  \
+        clear_thread_flag(TIF_IA32); \
+} while (0)
+
+#define USE_ELF_CORE_DUMP
+#define ELF_EXEC_PAGESIZE       4096
+
+/* This is the location that an ET_DYN program is loaded if exec'ed.  Typical
+   use of this is to invoke "./ld.so someprog" to test out a new version of
+   the loader.  We need to make sure that it is out of the way of the program
+   that it will "exec", and that there is sufficient room for the brk.  */
+
+#define ELF_ET_DYN_BASE         (2 * TASK_SIZE / 3)
+
+/* regs is struct pt_regs, pr_reg is elf_gregset_t (which is
+   now struct_user_regs, they are different). Assumes current is the process
+   getting dumped. */
+
+#define ELF_CORE_COPY_REGS(pr_reg, regs)  do { \
+        unsigned v;                                             \
+        (pr_reg)[0] = (regs)->r15;                              \
+        (pr_reg)[1] = (regs)->r14;                              \
+        (pr_reg)[2] = (regs)->r13;                              \
+        (pr_reg)[3] = (regs)->r12;                              \
+        (pr_reg)[4] = (regs)->rbp;                              \
+        (pr_reg)[5] = (regs)->rbx;                              \
+        (pr_reg)[6] = (regs)->r11;                              \
+        (pr_reg)[7] = (regs)->r10;                              \
+        (pr_reg)[8] = (regs)->r9;                               \
+        (pr_reg)[9] = (regs)->r8;                               \
+        (pr_reg)[10] = (regs)->rax;                             \
+        (pr_reg)[11] = (regs)->rcx;                             \
+        (pr_reg)[12] = (regs)->rdx;                             \
+        (pr_reg)[13] = (regs)->rsi;                             \
+        (pr_reg)[14] = (regs)->rdi;                             \
+        (pr_reg)[15] = (regs)->orig_rax;                        \
+        (pr_reg)[16] = (regs)->rip;                     \
+        (pr_reg)[17] = (regs)->cs;                      \
+        (pr_reg)[18] = (regs)->eflags;                  \
+        (pr_reg)[19] = (regs)->rsp;                     \
+        (pr_reg)[20] = (regs)->ss;                      \
+        (pr_reg)[21] = current->thread.fs;                      \
+        (pr_reg)[22] = current->thread.gs;                      \
+        asm("movl %%ds,%0" : "=r" (v)); (pr_reg)[23] = v;       \
+        asm("movl %%es,%0" : "=r" (v)); (pr_reg)[24] = v;       \
+        asm("movl %%fs,%0" : "=r" (v)); (pr_reg)[25] = v;       \
+        asm("movl %%gs,%0" : "=r" (v)); (pr_reg)[26] = v;       \
+} while(0);
+
+/* This yields a mask that user programs can use to figure out what
+   instruction set this CPU supports.  This could be done in user space,
+   but it's not easy, and we've already done it here.  */
+
+#define ELF_HWCAP       (boot_cpu_data.x86_capability[0])
+
+/* This yields a string that ld.so will use to load implementation
+   specific libraries for optimization.  This is more specific in
+   intent than poking at uname or /proc/cpuinfo.
+
+   For the moment, we have only optimizations for the Intel generations,
+   but that could change... */
+
+/* I'm not sure if we can use '-' here */
+#define ELF_PLATFORM  ("x86_64")
+
+extern void set_personality_64bit(void);
+#define SET_PERSONALITY(ex, ibcs2) set_personality_64bit()
+/*
+ * An executable for which elf_read_implies_exec() returns TRUE will
+ * have the READ_IMPLIES_EXEC personality flag set automatically.
+ */
+#define elf_read_implies_exec(ex, executable_stack)     (executable_stack != EXSTACK_DISABLE_X)
+
+struct task_struct;
+
+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_TASK_REGS(tsk, elf_regs) dump_task_regs(tsk, elf_regs)
+#define ELF_CORE_COPY_FPREGS(tsk, elf_fpregs) dump_task_fpu(tsk, elf_fpregs)
+
+/* 1GB for 64bit, 8MB for 32bit */
+#define STACK_RND_MASK (test_thread_flag(TIF_IA32) ? 0x7ff : 0x3fffff)
+
+
+#define ARCH_HAS_SETUP_ADDITIONAL_PAGES 1
+struct linux_binprm;
+extern int arch_setup_additional_pages(struct linux_binprm *bprm,
+                                       int executable_stack);
+
+extern int vdso_enabled;
+
+#define ARCH_DLINFO                                             \
+do if (vdso_enabled) {                                          \
+        NEW_AUX_ENT(AT_SYSINFO_EHDR,(unsigned long)current->mm->context.vdso);\
+} while (0)
+
+#endif
+
+#endif