/*
 * CDDL HEADER START
 *
 * The contents of this file are subject to the terms of the
 * Common Development and Distribution License (the "License").
 * You may not use this file except in compliance with the License.
 *
 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
 * or http://www.opensolaris.org/os/licensing.
 * See the License for the specific language governing permissions
 * and limitations under the License.
 *
 * When distributing Covered Code, include this CDDL HEADER in each
 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
 * If applicable, add the following below this CDDL HEADER, with the
 * fields enclosed by brackets "[]" replaced with your own identifying
 * information: Portions Copyright [yyyy] [name of copyright owner]
 *
 * CDDL HEADER END
 */

/*
 * Copyright 2009 Sun Microsystems, Inc.  All rights reserved.
 * Use is subject to license terms.
 */

#include        <sgs.h>
#include        <_debug.h>
#include        <conv.h>
#include        <msg.h>

void
Elf_ehdr(Lm_list *lml, Ehdr *ehdr, Shdr *shdr0)
{
        Conv_inv_buf_t          inv_buf1, inv_buf2;
        Conv_ehdr_flags_buf_t   flags_buf;
        Conv_sec_flags_buf_t    sec_flags_buf;
        Byte                    *byte = &(ehdr->e_ident[0]);
        const char              *flgs;
        int                     xshdr = 0;
        uchar_t                 osabi = ehdr->e_ident[EI_OSABI];
        Half                    mach = ehdr->e_machine;

        dbg_print(lml, MSG_ORIG(MSG_STR_EMPTY));
        dbg_print(lml, MSG_INTL(MSG_ELF_HEADER));

        dbg_print(lml, MSG_ORIG(MSG_ELF_MAGIC), byte[EI_MAG0],
            (byte[EI_MAG1] ? byte[EI_MAG1] : '0'),
            (byte[EI_MAG2] ? byte[EI_MAG2] : '0'),
            (byte[EI_MAG3] ? byte[EI_MAG3] : '0'));
        dbg_print(lml, MSG_ORIG(MSG_ELF_CLASS),
            conv_ehdr_class(ehdr->e_ident[EI_CLASS], 0, &inv_buf1),
            conv_ehdr_data(ehdr->e_ident[EI_DATA], 0, &inv_buf2));
        dbg_print(lml, MSG_ORIG(MSG_ELF_OSABI),
            conv_ehdr_osabi(ehdr->e_ident[EI_OSABI], 0, &inv_buf1),
            conv_ehdr_abivers(ehdr->e_ident[EI_OSABI],
            ehdr->e_ident[EI_ABIVERSION], CONV_FMT_DECIMAL, &inv_buf2));
        dbg_print(lml, MSG_ORIG(MSG_ELF_MACHINE),
            conv_ehdr_mach(mach, 0, &inv_buf1),
            conv_ehdr_vers(ehdr->e_version, 0, &inv_buf2));
        dbg_print(lml, MSG_ORIG(MSG_ELF_TYPE),
            conv_ehdr_type(osabi, ehdr->e_type, 0, &inv_buf1));

        /*
         * Line up the flags differently depending on whether we received a
         * numeric (e.g. "0x200") or text representation (e.g.
         * "[ EF_SPARC_SUN_US1 ]").
         */
        flgs = conv_ehdr_flags(mach, ehdr->e_flags, 0, &flags_buf);
        if (flgs[0] == '[')
                dbg_print(lml, MSG_ORIG(MSG_ELF_FLAGS_FMT), flgs);
        else
                dbg_print(lml, MSG_ORIG(MSG_ELF_FLAGS), flgs);

        /*
         * The e_shnum, e_shstrndx and e_phnum entries may have a different
         * meaning if extended sections exist.
         */
        if (ehdr->e_shstrndx == SHN_XINDEX) {
                dbg_print(lml, MSG_ORIG(MSG_ELFX_ESIZE),
                    EC_ADDR(ehdr->e_entry), ehdr->e_ehsize);
                xshdr++;
        } else
                dbg_print(lml, MSG_ORIG(MSG_ELF_ESIZE), EC_ADDR(ehdr->e_entry),
                    ehdr->e_ehsize, ehdr->e_shstrndx);

        if (ehdr->e_shnum == 0) {
                dbg_print(lml, MSG_ORIG(MSG_ELFX_SHOFF), EC_OFF(ehdr->e_shoff),
                    ehdr->e_shentsize);
                xshdr++;
        } else
                dbg_print(lml, MSG_ORIG(MSG_ELF_SHOFF), EC_OFF(ehdr->e_shoff),
                    ehdr->e_shentsize, ehdr->e_shnum);

        if (ehdr->e_phnum == PN_XNUM) {
                dbg_print(lml, MSG_ORIG(MSG_ELFX_PHOFF), EC_OFF(ehdr->e_phoff),
                    ehdr->e_phentsize);
                xshdr++;
        } else
                dbg_print(lml, MSG_ORIG(MSG_ELF_PHOFF), EC_OFF(ehdr->e_phoff),
                    ehdr->e_phentsize, ehdr->e_phnum);

        if ((xshdr == 0) || (shdr0 == NULL))
                return;

        /*
         * If we have Extended ELF headers - print shdr[0].
         */
        dbg_print(lml, MSG_ORIG(MSG_STR_EMPTY));
        dbg_print(lml, MSG_ORIG(MSG_SHD0_TITLE));
        dbg_print(lml, MSG_ORIG(MSG_SHD0_ADDR), EC_ADDR(shdr0->sh_addr),
            conv_sec_flags(osabi, mach, shdr0->sh_flags, 0, &sec_flags_buf));
        dbg_print(lml, MSG_ORIG(MSG_SHD0_SIZE), EC_XWORD(shdr0->sh_size),
            conv_sec_type(osabi, mach, shdr0->sh_type, 0, &inv_buf1));
        dbg_print(lml, MSG_ORIG(MSG_SHD0_OFFSET), EC_OFF(shdr0->sh_offset),
            EC_XWORD(shdr0->sh_entsize));
        dbg_print(lml, MSG_ORIG(MSG_SHD0_LINK), EC_WORD(shdr0->sh_link),
            EC_WORD(shdr0->sh_info));
        dbg_print(lml, MSG_ORIG(MSG_SHD0_ALIGN), EC_XWORD(shdr0->sh_addralign));
}