1 files changed, 76 insertions, 74 deletions

diff --git a/include/asm-arm/elf.h b/include/asm-arm/elf.h
index 17f0c656d272..642382d2c9f0 100644
--- a/include/asm-arm/elf.h
+++ b/include/asm-arm/elf.h
@@ -1,17 +1,22 @@
 #ifndef __ASMARM_ELF_H
 #define __ASMARM_ELF_H
 
-
+#ifndef __ASSEMBLY__
 /*
  * ELF register definitions..
  */
-
 #include <asm/ptrace.h>
 #include <asm/user.h>
 
 typedef unsigned long elf_greg_t;
 typedef unsigned long elf_freg_t[3];
 
+#define ELF_NGREG (sizeof (struct pt_regs) / sizeof(elf_greg_t))
+typedef elf_greg_t elf_gregset_t[ELF_NGREG];
+
+typedef struct user_fp elf_fpregset_t;
+#endif
+
 #define EM_ARM  40
 #define EF_ARM_APCS26 0x08
 #define EF_ARM_SOFT_FLOAT 0x200
@@ -23,11 +28,6 @@ typedef unsigned long elf_freg_t[3];
 #define R_ARM_CALL      28
 #define R_ARM_JUMP24    29
 
-#define ELF_NGREG (sizeof (struct pt_regs) / sizeof(elf_greg_t))
-typedef elf_greg_t elf_gregset_t[ELF_NGREG];
-
-typedef struct user_fp elf_fpregset_t;
-
 /*
  * These are used to set parameters in the core dumps.
  */
@@ -39,97 +39,99 @@ typedef struct user_fp elf_fpregset_t;
 #endif
 #define ELF_ARCH        EM_ARM
 
-#ifdef __KERNEL__
-#include <asm/procinfo.h>
-
 /*
- * This is used to ensure we don't load something for the wrong architecture.
+ * HWCAP flags - for elf_hwcap (in kernel) and AT_HWCAP
  */
-#define elf_check_arch(x) ( ((x)->e_machine == EM_ARM) && (ELF_PROC_OK((x))) )
-
-#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)
-
-/* When the program starts, a1 contains a pointer to a function to be 
-   registered with atexit, as per the SVR4 ABI.  A value of 0 means we 
-   have no such handler.  */
-#define ELF_PLAT_INIT(_r, load_addr)    (_r)->ARM_r0 = 0
-
-/* This yields a mask that user programs can use to figure out what
-   instruction set this cpu supports. */
+#define HWCAP_SWP       1
+#define HWCAP_HALF      2
+#define HWCAP_THUMB     4
+#define HWCAP_26BIT     8       /* Play it safe */
+#define HWCAP_FAST_MULT 16
+#define HWCAP_FPA       32
+#define HWCAP_VFP       64
+#define HWCAP_EDSP      128
+#define HWCAP_JAVA      256
+#define HWCAP_IWMMXT    512
 
+#ifdef __KERNEL__
+#ifndef __ASSEMBLY__
+/*
+ * This yields a mask that user programs can use to figure out what
+ * instruction set this cpu supports.
+ */
 #define ELF_HWCAP       (elf_hwcap)
+extern unsigned int elf_hwcap;
 
-/* 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 now we just provide a fairly general string that describes the
-   processor family.  This could be made more specific later if someone
-   implemented optimisations that require it.  26-bit CPUs give you
-   "v1l" for ARM2 (no SWP) and "v2l" for anything else (ARM1 isn't
-   supported).  32-bit CPUs give you "v3[lb]" for anything based on an
-   ARM6 or ARM7 core and "armv4[lb]" for anything based on a StrongARM-1
-   core.  */
-
+/*
+ * 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 now we just provide a fairly general string that describes the
+ * processor family.  This could be made more specific later if someone
+ * implemented optimisations that require it.  26-bit CPUs give you
+ * "v1l" for ARM2 (no SWP) and "v2l" for anything else (ARM1 isn't
+ * supported).  32-bit CPUs give you "v3[lb]" for anything based on an
+ * ARM6 or ARM7 core and "armv4[lb]" for anything based on a StrongARM-1
+ * core.
+ */
 #define ELF_PLATFORM_SIZE 8
-extern char elf_platform[];
 #define ELF_PLATFORM    (elf_platform)
 
+extern char elf_platform[];
+#endif
+
+/*
+ * This is used to ensure we don't load something for the wrong architecture.
+ */
+#define elf_check_arch(x) ((x)->e_machine == EM_ARM && ELF_PROC_OK(x))
+
 /*
  * 32-bit code is always OK.  Some cpus can do 26-bit, some can't.
  */
 #define ELF_PROC_OK(x)  (ELF_THUMB_OK(x) && ELF_26BIT_OK(x))
 
 #define ELF_THUMB_OK(x) \
-        (( (elf_hwcap & HWCAP_THUMB) && ((x)->e_entry & 1) == 1) || \
+        ((elf_hwcap & HWCAP_THUMB && ((x)->e_entry & 1) == 1) || \
          ((x)->e_entry & 3) == 0)
 
 #define ELF_26BIT_OK(x) \
-        (( (elf_hwcap & HWCAP_26BIT) && (x)->e_flags & EF_ARM_APCS26) || \
+        ((elf_hwcap & HWCAP_26BIT && (x)->e_flags & EF_ARM_APCS26) || \
           ((x)->e_flags & EF_ARM_APCS26) == 0)
 
-#ifndef CONFIG_IWMMXT
+#define USE_ELF_CORE_DUMP
+#define ELF_EXEC_PAGESIZE       4096
 
-/* Old NetWinder binaries were compiled in such a way that the iBCS
-   heuristic always trips on them.  Until these binaries become uncommon
-   enough not to care, don't trust the `ibcs' flag here.  In any case
-   there is no other ELF system currently supported by iBCS.
-   @@ Could print a warning message to encourage users to upgrade.  */
-#define SET_PERSONALITY(ex,ibcs2) \
-        set_personality(((ex).e_flags&EF_ARM_APCS26 ?PER_LINUX :PER_LINUX_32BIT))
+/* 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.  */
 
-#else
+#define ELF_ET_DYN_BASE (2 * TASK_SIZE / 3)
+
+/* When the program starts, a1 contains a pointer to a function to be 
+   registered with atexit, as per the SVR4 ABI.  A value of 0 means we 
+   have no such handler.  */
+#define ELF_PLAT_INIT(_r, load_addr)    (_r)->ARM_r0 = 0
 
 /*
- * All iWMMXt capable CPUs don't support 26-bit mode.  Yet they can run
- * legacy binaries which used to contain FPA11 floating point instructions
- * that have always been emulated by the kernel.  PFA11 and iWMMXt overlap
- * on coprocessor 1 space though.  We therefore must decide if given task
- * is allowed to use CP 0 and 1 for iWMMXt, or if they should be blocked
- * at all times for the prefetch exception handler to catch FPA11 opcodes
- * and emulate them.  The best indication to discriminate those two cases
- * is the SOFT_FLOAT flag in the ELF header.
+ * Since the FPA coprocessor uses CP1 and CP2, and iWMMXt uses CP0
+ * and CP1, we only enable access to the iWMMXt coprocessor if the
+ * binary is EABI or softfloat (and thus, guaranteed not to use
+ * FPA instructions.)
  */
-
-#define SET_PERSONALITY(ex,ibcs2) \
-do { \
-        set_personality(PER_LINUX_32BIT); \
-        if (((ex).e_flags & EF_ARM_EABI_MASK) || \
-            ((ex).e_flags & EF_ARM_SOFT_FLOAT)) \
-                set_thread_flag(TIF_USING_IWMMXT); \
-        else \
-                clear_thread_flag(TIF_USING_IWMMXT); \
-} while (0)
-
-#endif
+#define SET_PERSONALITY(ex, ibcs2)                                      \
+        do {                                                            \
+                if ((ex).e_flags & EF_ARM_APCS26) {                     \
+                        set_personality(PER_LINUX);                     \
+                } else {                                                \
+                        set_personality(PER_LINUX_32BIT);               \
+                        if (elf_hwcap & HWCAP_IWMMXT && (ex).e_flags & (EF_ARM_EABI_MASK | EF_ARM_SOFT_FLOAT)) \
+                                set_thread_flag(TIF_USING_IWMMXT);      \
+                        else                                            \
+                                clear_thread_flag(TIF_USING_IWMMXT);    \
+                }                                                       \
+        } while (0)
 
 #endif