#ifndef _ASM_POWERPC_ELF_H
#define _ASM_POWERPC_ELF_H
+#ifdef __KERNEL__
+#include <linux/sched.h> /* for task_struct */
+#endif
+
#include <asm/types.h>
#include <asm/ptrace.h>
#include <asm/cputable.h>
#include <asm/auxvec.h>
#include <asm/page.h>
+#include <asm/string.h>
/* PowerPC relocations defined by the ABIs */
#define R_PPC_NONE 0
* as published by the Free Software Foundation; either version
* 2 of the License, or (at your option) any later version.
*/
-#include <asm/ptrace.h>
#define ELF_NGREG 48 /* includes nip, msr, lr, etc. */
#define ELF_NFPREG 33 /* includes fpscr */
static inline void ppc_elf_core_copy_regs(elf_gregset_t elf_regs,
struct pt_regs *regs)
{
- int i;
- int gprs = sizeof(struct pt_regs)/sizeof(ELF_GREG_TYPE);
-
- if (gprs > ELF_NGREG)
- gprs = ELF_NGREG;
+ int i, nregs;
- for (i=0; i < gprs; i++)
- elf_regs[i] = (elf_greg_t)((ELF_GREG_TYPE *)regs)[i];
+ memset((void *)elf_regs, 0, sizeof(elf_gregset_t));
- memset((char *)(elf_regs) + sizeof(struct pt_regs), 0, \
- sizeof(elf_gregset_t) - sizeof(struct pt_regs));
+ /* Our registers are always unsigned longs, whether we're a 32 bit
+ * process or 64 bit, on either a 64 bit or 32 bit kernel.
+ * Don't use ELF_GREG_TYPE here. */
+ nregs = sizeof(struct pt_regs) / sizeof(unsigned long);
+ if (nregs > ELF_NGREG)
+ nregs = ELF_NGREG;
+ for (i = 0; i < nregs; i++) {
+ /* This will correctly truncate 64 bit registers to 32 bits
+ * for a 32 bit process on a 64 bit kernel. */
+ elf_regs[i] = (elf_greg_t)((ELF_GREG_TYPE *)regs)[i];
+ }
}
#define ELF_CORE_COPY_REGS(gregs, regs) ppc_elf_core_copy_regs(gregs, regs);
instruction set this cpu supports. This could be done in userspace,
but it's not easy, and we've already done it here. */
# define ELF_HWCAP (cur_cpu_spec->cpu_user_features)
-#ifdef __powerpc64__
-# define ELF_PLAT_INIT(_r, load_addr) do { \
- _r->gpr[2] = load_addr; \
-} while (0)
-#endif /* __powerpc64__ */
/* 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.
+ intent than poking at uname or /proc/cpuinfo. */
- For the moment, we have only optimizations for the Intel generations,
- but that could change... */
+#define ELF_PLATFORM (cur_cpu_spec->platform)
-#define ELF_PLATFORM (NULL)
+#ifdef __powerpc64__
+# define ELF_PLAT_INIT(_r, load_addr) do { \
+ _r->gpr[2] = load_addr; \
+} while (0)
+#endif /* __powerpc64__ */
#ifdef __KERNEL__
extern int icache_bsize;
extern int ucache_bsize;
-#ifdef __powerpc64__
+/* vDSO has arch_setup_additional_pages */
+#define ARCH_HAS_SETUP_ADDITIONAL_PAGES
struct linux_binprm;
-#define ARCH_HAS_SETUP_ADDITIONAL_PAGES /* vDSO has arch_setup_additional_pages */
-extern int arch_setup_additional_pages(struct linux_binprm *bprm, int executable_stack);
+extern int arch_setup_additional_pages(struct linux_binprm *bprm,
+ int executable_stack);
#define VDSO_AUX_ENT(a,b) NEW_AUX_ENT(a,b);
-#else
-#define VDSO_AUX_ENT(a,b)
-#endif /* __powerpc64__ */
/*
* The requirements here are: