x86: merge elf_32/64.h

Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>

1 files changed, 288 insertions, 11 deletions

diff --git a/include/asm-x86/elf.h b/include/asm-x86/elf.h
index ed6bb6e546b9..ec42a4d2e83b 100644
--- a/include/asm-x86/elf.h
+++ b/include/asm-x86/elf.h
@@ -1,13 +1,290 @@
-#ifdef __KERNEL__
-# ifdef CONFIG_X86_32
-#  include "elf_32.h"
-# else
-#  include "elf_64.h"
-# endif
+#ifndef _ASM_X86_ELF_H
+#define _ASM_X86_ELF_H
+
+/*
+ * ELF register definitions..
+ */
+
+#include <asm/ptrace.h>
+#include <asm/user.h>
+#include <asm/auxvec.h>
+
+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;
+
+#ifdef __i386__
+
+typedef struct user_fxsr_struct elf_fpxregset_t;
+
+#define R_386_NONE      0
+#define R_386_32        1
+#define R_386_PC32      2
+#define R_386_GOT32     3
+#define R_386_PLT32     4
+#define R_386_COPY      5
+#define R_386_GLOB_DAT  6
+#define R_386_JMP_SLOT  7
+#define R_386_RELATIVE  8
+#define R_386_GOTOFF    9
+#define R_386_GOTPC     10
+#define R_386_NUM       11
+
+/*
+ * These are used to set parameters in the core dumps.
+ */
+#define ELF_CLASS       ELFCLASS32
+#define ELF_DATA        ELFDATA2LSB
+#define ELF_ARCH        EM_386
+
 #else
-# ifdef __i386__
-#  include "elf_32.h"
-# else
-#  include "elf_64.h"
-# endif
+
+/* 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
+
+/*
+ * These are used to set parameters in the core dumps.
+ */
+#define ELF_CLASS       ELFCLASS64
+#define ELF_DATA        ELFDATA2LSB
+#define ELF_ARCH        EM_X86_64
+
+#endif
+
+#ifdef __KERNEL__
+
+#ifdef CONFIG_X86_32
+#include <asm/processor.h>
+#include <asm/system.h>         /* for savesegment */
+#include <asm/desc.h>
+
+/*
+ * This is used to ensure we don't load something for the wrong architecture.
+ */
+#define elf_check_arch(x) \
+        (((x)->e_machine == EM_386) || ((x)->e_machine == EM_486))
+
+/* 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 { \
+        _r->ebx = 0; _r->ecx = 0; _r->edx = 0; \
+        _r->esi = 0; _r->edi = 0; _r->ebp = 0; \
+        _r->eax = 0; \
+} while (0)
+
+/* regs is struct pt_regs, pr_reg is elf_gregset_t (which is
+   now struct_user_regs, they are different) */
+
+#define ELF_CORE_COPY_REGS(pr_reg, regs)                \
+        pr_reg[0] = regs->ebx;                          \
+        pr_reg[1] = regs->ecx;                          \
+        pr_reg[2] = regs->edx;                          \
+        pr_reg[3] = regs->esi;                          \
+        pr_reg[4] = regs->edi;                          \
+        pr_reg[5] = regs->ebp;                          \
+        pr_reg[6] = regs->eax;                          \
+        pr_reg[7] = regs->xds & 0xffff;                 \
+        pr_reg[8] = regs->xes & 0xffff;                 \
+        pr_reg[9] = regs->xfs & 0xffff;                 \
+        savesegment(gs,pr_reg[10]);                     \
+        pr_reg[11] = regs->orig_eax;                    \
+        pr_reg[12] = regs->eip;                         \
+        pr_reg[13] = regs->xcs & 0xffff;                \
+        pr_reg[14] = regs->eflags;                      \
+        pr_reg[15] = regs->esp;                         \
+        pr_reg[16] = regs->xss & 0xffff;
+
+#define ELF_PLATFORM    (utsname()->machine)
+#define set_personality_64bit() do { } while (0)
+extern unsigned int vdso_enabled;
+
+#else /* CONFIG_X86_32 */
+
+#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)
+
+#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)
+
+/* 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);
+
+/* I'm not sure if we can use '-' here */
+#define ELF_PLATFORM       ("x86_64")
+extern void set_personality_64bit(void);
+extern int vdso_enabled;
+
+#endif /* !CONFIG_X86_32 */
+
+#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         (TASK_SIZE / 3 * 2)
+
+/* 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... */
+
+#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)
+
+#ifdef CONFIG_X86_32
+extern int dump_task_extended_fpu (struct task_struct *,
+                                   struct user_fxsr_struct *);
+#define ELF_CORE_COPY_XFPREGS(tsk, elf_xfpregs) \
+        dump_task_extended_fpu(tsk, elf_xfpregs)
+#define ELF_CORE_XFPREG_TYPE NT_PRXFPREG
+
+#define VDSO_HIGH_BASE          (__fix_to_virt(FIX_VDSO))
+#define VDSO_CURRENT_BASE       ((unsigned long)current->mm->context.vdso)
+#define VDSO_PRELINK            0
+
+#define VDSO_SYM(x) \
+                (VDSO_CURRENT_BASE + (unsigned long)(x) - VDSO_PRELINK)
+
+#define VDSO_HIGH_EHDR          ((const struct elfhdr *) VDSO_HIGH_BASE)
+#define VDSO_EHDR               ((const struct elfhdr *) VDSO_CURRENT_BASE)
+
+extern void __kernel_vsyscall;
+
+#define VDSO_ENTRY              VDSO_SYM(&__kernel_vsyscall)
+
+/* update AT_VECTOR_SIZE_ARCH if the number of NEW_AUX_ENT entries changes */
+
+#define ARCH_DLINFO \
+do if (vdso_enabled) {                                                  \
+                NEW_AUX_ENT(AT_SYSINFO, VDSO_ENTRY);                    \
+                NEW_AUX_ENT(AT_SYSINFO_EHDR, VDSO_CURRENT_BASE);        \
+} while (0)
+
+#else /* CONFIG_X86_32 */
+
+/* 1GB for 64bit, 8MB for 32bit */
+#define STACK_RND_MASK (test_thread_flag(TIF_IA32) ? 0x7ff : 0x3fffff)
+
+#define ARCH_DLINFO                                             \
+do if (vdso_enabled) {                                          \
+        NEW_AUX_ENT(AT_SYSINFO_EHDR,(unsigned long)current->mm->context.vdso);\
+} while (0)
+
+#endif /* !CONFIG_X86_32 */
+
+struct linux_binprm;
+
+#define ARCH_HAS_SETUP_ADDITIONAL_PAGES 1
+extern int arch_setup_additional_pages(struct linux_binprm *bprm,
+                                       int executable_stack);
+
+#endif /* __KERNEL__ */
+
 #endif