diff options
author | jake <jake@FreeBSD.org> | 2001-07-31 05:45:16 +0000 |
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committer | jake <jake@FreeBSD.org> | 2001-07-31 05:45:16 +0000 |
commit | 489876bc4dc75168229017bfd4c2a43ec2711417 (patch) | |
tree | d0d27ae055cda21943a83b39f6c76f563b021536 /sys/sparc64/include/elf.h | |
parent | f2e1ef72924f0d6ae48277b1b68e47bf3970cbc2 (diff) | |
download | FreeBSD-src-489876bc4dc75168229017bfd4c2a43ec2711417.zip FreeBSD-src-489876bc4dc75168229017bfd4c2a43ec2711417.tar.gz |
Add skeleton machine dependent headers and c files for a port of freebsd
to a new architecture. This is the base of the sparc64 port, but contains
limited machine dependent code, and can be used a base for ports. Included
are:
- standard machine dependent headers, tweaked for a 64 bit, big endian
architecture, including empty versions of all the machine dependent
structures
- a machine independent atomic.h, which can be used until a port has
support for interrupts and the operations really need to be atomic
- stub versions of all the machine dependent functions, which panic
when called and print out the name of the function that needs to
be implemented. functions which are normally in assembly files are
not included, but this should reduce the number of different undefined
references on the first few compiles from hundreds to 5 or 6
Given minimal startup code and console support it should be trivial to
make this compile and run the first few sysinits on almost any architecture.
Requested by: alfred, imp, jhb
Diffstat (limited to 'sys/sparc64/include/elf.h')
-rw-r--r-- | sys/sparc64/include/elf.h | 90 |
1 files changed, 90 insertions, 0 deletions
diff --git a/sys/sparc64/include/elf.h b/sys/sparc64/include/elf.h new file mode 100644 index 0000000..f5f7cfa --- /dev/null +++ b/sys/sparc64/include/elf.h @@ -0,0 +1,90 @@ +/*- + * Copyright (c) 2001 Jake Burkholder. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + * + * $FreeBSD$ + */ + +#ifndef _MACHINE_ELF_H_ +#define _MACHINE_ELF_H_ + +#include <sys/elf64.h> + +#define __ELF_WORD_SIZE 64 +#include <sys/elf_generic.h> + +#define ELF_ARCH EM_SPARCV9 + +#define ELF_TARG_CLASS ELFCLASS64 +#define ELF_TARG_DATA ELFDATA2MSB +#define ELF_TARG_MACH ELF_ARCH +#define ELF_TARG_VER 1 + +#define ELF_MACHINE_OK(m) ((m) == ELF_ARCH) +#define ELF_RTLD_ADDR(vm) (0) + +/* + * Auxiliary vector entries for passing information to the interpreter. + */ + +typedef struct { + long a_type; + union { + long a_val; + void *a_ptr; + void (*a_fcn)(void); + } a_un; +} Elf64_Auxinfo; + +__ElfType(Auxinfo); + +/* + * Values for a_type. + */ + +#define AT_NULL 0 /* Terminates the vector. */ +#define AT_IGNORE 1 /* Ignored entry. */ +#define AT_EXECFD 2 /* File descriptor of program to load. */ +#define AT_PHDR 3 /* Program header of program already loaded. */ +#define AT_PHENT 4 /* Size of each program header entry. */ +#define AT_PHNUM 5 /* Number of program header entries. */ +#define AT_PAGESZ 6 /* Page size in bytes. */ +#define AT_BASE 7 /* Interpreter's base address. */ +#define AT_FLAGS 8 /* Flags (unused). */ +#define AT_ENTRY 9 /* Where interpreter should transfer control. */ + +/* + * The following non-standard values are used for passing information + * from John Polstra's testbed program to the dynamic linker. These + * are expected to go away soon. + * + * Unfortunately, these overlap the Linux non-standard values, so they + * must not be used in the same context. + */ +#define AT_BRK 10 /* Starting point for sbrk and brk. */ +#define AT_DEBUG 11 /* Debugging level. */ + +#define AT_COUNT 15 /* Count of defined aux entry types. */ + +#endif /* !_MACHINE_ELF_H_ */ |