Date: Fri, 24 Jan 2003 23:22:20 -0800 (PST) From: Juli Mallett <jmallett@FreeBSD.org> To: Perforce Change Reviews <perforce@freebsd.org> Subject: PERFORCE change 24171 for review Message-ID: <200301250722.h0P7MKZV091306@repoman.freebsd.org>
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http://perforce.freebsd.org/chv.cgi?CH=24171 Change 24171 by jmallett@jmallett_dalek on 2003/01/24 23:22:07 Fill in ELF information for a 32-bit system (for now), based on the format of FreeBSD/powerpc's elf.h, and using data from NetBSD's elf_machdep.h for MIPS, and doing the logical thing everywhere else. Affected files ... .. //depot/projects/mips/sys/mips/include/elf.h#2 edit Differences ... ==== //depot/projects/mips/sys/mips/include/elf.h#2 (text+ko) ==== @@ -22,6 +22,9 @@ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. * + * Derived from: + * $NetBSD: elf_machdep.h,v 1.8 2001/12/09 23:05:58 thorpej Exp $ + * * $FreeBSD$ */ @@ -29,7 +32,120 @@ #define _MACHINE_ELF_H_ /* - * Nothing to see here. + * EABI ELF definitions for the MIPS architecture. + */ + +#include <sys/elf32.h> /* Definitions common to all 32 bit architectures. */ + +#define __ELF_WORD_SIZE 32 /* Used by <sys/elf_generic.h> */ +#include <sys/elf_generic.h> + +/* ELF_ARCH */ +#define ELF_ARCH EM_MIPS + +#define ELF_MACHINE_OK(x) ((x) == ELF_ARCH) + +/* + * Auxillary info. + * + * XXX Empty for now. + */ + +/* + * Relocation types. + */ + +#define R_MIPS_NONE 0 +#define R_MIPS_16 1 +#define R_MIPS_32 2 +#define R_MIPS_REL32 3 +#define R_MIPS_REL R_MIPS_REL32 +#define R_MIPS_26 4 +#define R_MIPS_HI16 5 /* high 16 bits of symbol value */ +#define R_MIPS_LO16 6 /* low 16 bits of symbol value */ +#define R_MIPS_GPREL16 7 /* GP-relative reference */ +#define R_MIPS_LITERAL 8 /* Reference to literal section */ +#define R_MIPS_GOT16 9 /* Reference to global offset table */ +#define R_MIPS_GOT R_MIPS_GOT16 +#define R_MIPS_PC16 10 /* 16 bit PC relative reference */ +#define R_MIPS_CALL16 11 /* 16 bit call thru glbl offset tbl */ +#define R_MIPS_CALL R_MIPS_CALL16 +#define R_MIPS_GPREL32 12 + +/* 13, 14, 15 are not defined at this point. */ +#define R_MIPS_UNUSED1 13 +#define R_MIPS_UNUSED2 14 +#define R_MIPS_UNUSED3 15 + +/* + * The remaining relocs are apparently part of the 64-bit Irix ELF ABI. + */ +#define R_MIPS_SHIFT5 16 +#define R_MIPS_SHIFT6 17 + +#define R_MIPS_64 18 +#define R_MIPS_GOT_DISP 19 +#define R_MIPS_GOT_PAGE 20 +#define R_MIPS_GOT_OFST 21 +#define R_MIPS_GOT_HI16 22 +#define R_MIPS_GOT_LO16 23 +#define R_MIPS_SUB 24 +#define R_MIPS_INSERT_A 25 +#define R_MIPS_INSERT_B 26 +#define R_MIPS_DELETE 27 +#define R_MIPS_HIGHER 28 +#define R_MIPS_HIGHEST 29 +#define R_MIPS_CALL_HI16 30 +#define R_MIPS_CALL_LO16 31 +#define R_MIPS_SCN_DISP 32 +#define R_MIPS_REL16 33 +#define R_MIPS_ADD_IMMEDIATE 34 +#define R_MIPS_PJUMP 35 +#define R_MIPS_RELGOT 36 + +#define R_MIPS_COUNT 37 +#define R_TYPE(name) __CONCAT(R_MIPS_,name) + +/* + * Dynamic tags. + */ + +#define DT_MIPS_RLD_VERSION 0x70000001 +#define DT_MIPS_TIME_STAMP 0x70000002 +#define DT_MIPS_ICHECKSUM 0x70000003 +#define DT_MIPS_IVERSION 0x70000004 +#define DT_MIPS_FLAGS 0x70000005 +#define DT_MIPS_BASE_ADDRESS 0x70000006 +#define DT_MIPS_CONFLICT 0x70000008 +#define DT_MIPS_LIBLIST 0x70000009 +#define DT_MIPS_CONFLICTNO 0x7000000b +#define DT_MIPS_LOCAL_GOTNO 0x7000000a /* number of local got ents */ +#define DT_MIPS_LIBLISTNO 0x70000010 +#define DT_MIPS_SYMTABNO 0x70000011 /* number of .dynsym entries */ +#define DT_MIPS_UNREFEXTNO 0x70000012 +#define DT_MIPS_GOTSYM 0x70000013 /* first dynamic sym in got */ +#define DT_MIPS_HIPAGENO 0x70000014 +#define DT_MIPS_RLD_MAP 0x70000016 /* address of loader map */ + +/* + * Define "machine" characteristics + */ +#define ELF_TARG_CLASS ELFCLASS32 +#define ELF_TARG_DATA ELFDATA2MSB +#define ELF_TARG_MACH ELF_ARCH +#define ELF_TARG_VER 1 + +#ifdef _KERNEL + +/* + * On the MIPS we load the dynamic linker where a userland call + * to mmap(0, ...) would put it. The rationale behind this + * calculation is that it leaves room for the heap to grow to + * its maximum allowed size. */ +#define ELF_RTLD_ADDR(vmspace) \ + (round_page((vm_offset_t)(vmspace)->vm_daddr + maxdsiz)) + +#endif /* _KERNEL */ #endif /* !_MACHINE_ELF_H_ */ To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe p4-projects" in the body of the message
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