Commit yaboot 1.3.0

[yaboot.git] / include / asm / elf.h

diff --git a/include/asm/elf.h b/include/asm/elf.h
new file mode 100644 (file)
index 0000000..fc3c015
--- /dev/null
+++ b/include/asm/elf.h
@@ -0,0 +1,57 @@
+#ifndef __PPC_ELF_H
+#define __PPC_ELF_H
+
+#define ELF_NGREG      48      /* includes nip, msr, lr, etc. */
+#define ELF_NFPREG     33      /* includes fpscr */
+
+/*
+ * This is used to ensure we don't load something for the wrong architecture.
+ */
+#define elf_check_arch(x) ((x) == EM_PPC)
+
+/*
+ * These are used to set parameters in the core dumps.
+ */
+#define ELF_ARCH       EM_PPC
+#define ELF_CLASS      ELFCLASS32
+#define ELF_DATA       ELFDATA2MSB
+
+#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         (0x08000000)
+
+typedef unsigned long elf_greg_t;
+typedef elf_greg_t elf_gregset_t[ELF_NGREG];
+
+typedef double elf_fpreg_t;
+typedef elf_fpreg_t elf_fpregset_t[ELF_NFPREG];
+
+#define ELF_CORE_COPY_REGS(gregs, regs) \
+       memcpy(gregs, regs, \
+              sizeof(struct pt_regs) < sizeof(elf_gregset_t)? \
+              sizeof(struct pt_regs): sizeof(elf_gregset_t));
+
+
+/* This yields a mask that user programs can use to figure out what
+   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      (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 ELF_PLATFORM   (NULL)
+
+
+#endif