libconv/common/sections.c

	sections.c revision de777a601dfef76d8d54837de77dc672dce47498
/*
 * 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 2007 Sun Microsystems, Inc.  All rights reserved.
 * Use is subject to license terms.
 */
#pragma ident   "%Z%%M% %I% %E% SMI"

/*
 * String conversion routines for section attributes.
 */
#include    <string.h>
#include    <sys/param.h>
#include    <sys/elf_SPARC.h>
#include    <sys/elf_amd64.h>
#include    <_conv.h>
#include    <sections_msg.h>


/* Instantiate a local copy of conv_map2str() from _conv.h */
DEFINE_conv_map2str


static const Msg secs[SHT_NUM] = {
    MSG_SHT_NULL,       MSG_SHT_PROGBITS,   MSG_SHT_SYMTAB,
    MSG_SHT_STRTAB,     MSG_SHT_RELA,       MSG_SHT_HASH,
    MSG_SHT_DYNAMIC,    MSG_SHT_NOTE,       MSG_SHT_NOBITS,
    MSG_SHT_REL,        MSG_SHT_SHLIB,      MSG_SHT_DYNSYM,
    MSG_SHT_UNKNOWN12,  MSG_SHT_UNKNOWN13,  MSG_SHT_INIT_ARRAY,
    MSG_SHT_FINI_ARRAY, MSG_SHT_PREINIT_ARRAY,  MSG_SHT_GROUP,
    MSG_SHT_SYMTAB_SHNDX
};
static const Msg secs_alt[SHT_NUM] = {
    MSG_SHT_NULL_ALT,   MSG_SHT_PROGBITS_ALT,   MSG_SHT_SYMTAB_ALT,
    MSG_SHT_STRTAB_ALT, MSG_SHT_RELA_ALT,   MSG_SHT_HASH_ALT,
    MSG_SHT_DYNAMIC_ALT,    MSG_SHT_NOTE_ALT,   MSG_SHT_NOBITS_ALT,
    MSG_SHT_REL_ALT,    MSG_SHT_SHLIB_ALT,  MSG_SHT_DYNSYM_ALT,
    MSG_SHT_UNKNOWN12,  MSG_SHT_UNKNOWN13,  MSG_SHT_INIT_ARRAY_ALT,
    MSG_SHT_FINI_ARRAY_ALT, MSG_SHT_PREINIT_ARRAY_ALT, MSG_SHT_GROUP_ALT,
    MSG_SHT_SYMTAB_SHNDX_ALT
};
#if (SHT_NUM != (SHT_SYMTAB_SHNDX + 1))
#error  "SHT_NUM has grown"
#endif

static const Msg usecs[SHT_HISUNW - SHT_LOSUNW + 1] = {
    MSG_SHT_SUNW_symsort,       MSG_SHT_SUNW_tlssort,
    MSG_SHT_SUNW_LDYNSYM,       MSG_SHT_SUNW_dof,
    MSG_SHT_SUNW_cap,       MSG_SHT_SUNW_SIGNATURE,
    MSG_SHT_SUNW_ANNOTATE,      MSG_SHT_SUNW_DEBUGSTR,
    MSG_SHT_SUNW_DEBUG,     MSG_SHT_SUNW_move,
    MSG_SHT_SUNW_COMDAT,        MSG_SHT_SUNW_syminfo,
    MSG_SHT_SUNW_verdef,        MSG_SHT_SUNW_verneed,
    MSG_SHT_SUNW_versym
};
static const Msg usecs_alt[SHT_HISUNW - SHT_LOSUNW + 1] = {
    MSG_SHT_SUNW_symsort_ALT,   MSG_SHT_SUNW_tlssort_ALT,
    MSG_SHT_SUNW_LDYNSYM_ALT,   MSG_SHT_SUNW_dof_ALT,
    MSG_SHT_SUNW_cap_ALT,       MSG_SHT_SUNW_SIGNATURE_ALT,
    MSG_SHT_SUNW_ANNOTATE_ALT,  MSG_SHT_SUNW_DEBUGSTR_ALT,
    MSG_SHT_SUNW_DEBUG_ALT,     MSG_SHT_SUNW_move_ALT,
    MSG_SHT_SUNW_COMDAT_ALT,    MSG_SHT_SUNW_syminfo_ALT,
    MSG_SHT_SUNW_verdef_ALT,    MSG_SHT_SUNW_verneed_ALT,
    MSG_SHT_SUNW_versym_ALT
};
#if (SHT_LOSUNW != SHT_SUNW_symsort)
#error  "SHT_LOSUNW has moved"
#endif


const char *
conv_sec_type(Half mach, Word sec, int fmt_flags, Conv_inv_buf_t *inv_buf)
{
    if (sec < SHT_NUM) {
        return (conv_map2str(inv_buf, sec, fmt_flags,
            ARRAY_NELTS(secs), secs, secs_alt, NULL));
    } else if ((sec >= SHT_LOSUNW) && (sec <= SHT_HISUNW)) {
        return (conv_map2str(inv_buf, sec - SHT_LOSUNW,
            fmt_flags, ARRAY_NELTS(usecs), usecs, usecs_alt, NULL));
    } else if ((sec >= SHT_LOPROC) && (sec <= SHT_HIPROC)) {
        switch (mach) {
        case EM_SPARC:
        case EM_SPARC32PLUS:
        case EM_SPARCV9:
            if (sec == SHT_SPARC_GOTDATA) {
                return (fmt_flags & CONV_FMT_ALTDUMP)
                    ? MSG_ORIG(MSG_SHT_SPARC_GOTDATA_ALT)
                    : MSG_ORIG(MSG_SHT_SPARC_GOTDATA);
            }
            break;
        case EM_AMD64:
            if (sec == SHT_AMD64_UNWIND) {
                return (fmt_flags & CONV_FMT_ALTDUMP)
                    ? MSG_ORIG(MSG_SHT_AMD64_UNWIND_ALT)
                    : MSG_ORIG(MSG_SHT_AMD64_UNWIND);
            }
        }
    }

    /* If we get here, it's an unknown type */
    return (conv_invalid_val(inv_buf, sec, fmt_flags));
}

#define FLAGSZ  CONV_EXPN_FIELD_DEF_PREFIX_SIZE + \
        MSG_SHF_WRITE_SIZE  + CONV_EXPN_FIELD_DEF_SEP_SIZE + \
        MSG_SHF_ALLOC_SIZE  + CONV_EXPN_FIELD_DEF_SEP_SIZE + \
        MSG_SHF_EXECINSTR_SIZE  + CONV_EXPN_FIELD_DEF_SEP_SIZE + \
        MSG_SHF_MERGE_SIZE  + CONV_EXPN_FIELD_DEF_SEP_SIZE + \
        MSG_SHF_STRINGS_SIZE    + CONV_EXPN_FIELD_DEF_SEP_SIZE + \
        MSG_SHF_INFO_LINK_SIZE  + CONV_EXPN_FIELD_DEF_SEP_SIZE + \
        MSG_SHF_LINK_ORDER_SIZE + CONV_EXPN_FIELD_DEF_SEP_SIZE + \
        MSG_SHF_OS_NONCONFORMING_SIZE + CONV_EXPN_FIELD_DEF_SEP_SIZE + \
        MSG_SHF_GROUP_SIZE  + CONV_EXPN_FIELD_DEF_SEP_SIZE + \
        MSG_SHF_TLS_SIZE    + CONV_EXPN_FIELD_DEF_SEP_SIZE + \
        MSG_SHF_EXCLUDE_SIZE    + CONV_EXPN_FIELD_DEF_SEP_SIZE + \
        MSG_SHF_ORDERED_SIZE    + CONV_EXPN_FIELD_DEF_SEP_SIZE + \
        MSG_SHF_AMD64_LARGE_SIZE + CONV_EXPN_FIELD_DEF_SEP_SIZE + \
        CONV_INV_BUFSIZE + CONV_EXPN_FIELD_DEF_SUFFIX_SIZE

/*
 * Ensure that Conv_sec_flags_buf_t is large enough:
 *
 * FLAGSZ is the real minimum size of the buffer required by conv_sec_flags().
 * However, Conv_sec_flags_buf_t uses CONV_SEC_FLAGS_BUFSIZE to set the
 * buffer size. We do things this way because the definition of FLAGSZ uses
 * information that is not available in the environment of other programs
 * that include the conv.h header file.
 */
#if CONV_SEC_FLAGS_BUFSIZE < FLAGSZ
#error "CONV_SEC_FLAGS_BUFSIZE is not large enough"
#endif

const char *
conv_sec_flags(Xword flags, Conv_sec_flags_buf_t *sec_flags_buf)
{
    static Val_desc vda[] = {
        { SHF_WRITE,        MSG_ORIG(MSG_SHF_WRITE) },
        { SHF_ALLOC,        MSG_ORIG(MSG_SHF_ALLOC) },
        { SHF_EXECINSTR,    MSG_ORIG(MSG_SHF_EXECINSTR) },
        { SHF_MERGE,        MSG_ORIG(MSG_SHF_MERGE) },
        { SHF_STRINGS,      MSG_ORIG(MSG_SHF_STRINGS) },
        { SHF_INFO_LINK,    MSG_ORIG(MSG_SHF_INFO_LINK) },
        { SHF_LINK_ORDER,   MSG_ORIG(MSG_SHF_LINK_ORDER) },
        { SHF_OS_NONCONFORMING, MSG_ORIG(MSG_SHF_OS_NONCONFORMING) },
        { SHF_GROUP,        MSG_ORIG(MSG_SHF_GROUP) },
        { SHF_TLS,      MSG_ORIG(MSG_SHF_TLS) },
        { SHF_EXCLUDE,      MSG_ORIG(MSG_SHF_EXCLUDE) },
        { SHF_ORDERED,      MSG_ORIG(MSG_SHF_ORDERED) },
        { SHF_AMD64_LARGE,  MSG_ORIG(MSG_SHF_AMD64_LARGE) },
        { 0,            0 }
    };
    static CONV_EXPN_FIELD_ARG conv_arg = {
        NULL, sizeof (sec_flags_buf->buf), vda };

    if (flags == 0)
        return (MSG_ORIG(MSG_GBL_ZERO));

    conv_arg.buf = sec_flags_buf->buf;
    conv_arg.oflags = conv_arg.rflags = flags;
    (void) conv_expn_field(&conv_arg);

    return ((const char *)sec_flags_buf->buf);
}

const char *
conv_sec_linkinfo(Word info, Xword flags, Conv_inv_buf_t *inv_buf)
{
    if (flags & ALL_SHF_ORDER) {
        if (info == SHN_BEFORE)
            return (MSG_ORIG(MSG_SHN_BEFORE));
        else if (info == SHN_AFTER)
            return (MSG_ORIG(MSG_SHN_AFTER));
    }

    (void) conv_invalid_val(inv_buf, info, 1);
    return ((const char *)inv_buf->buf);
}