106 lines
4.5 KiB
C
106 lines
4.5 KiB
C
/*-
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* Copyright (c) 2010-2013 Kai Wang
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* $Id: ld_symbols.h 2882 2013-01-09 22:47:04Z kaiwang27 $
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*/
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struct ld_symver_verdef;
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struct ld_symbol {
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char *lsb_name; /* symbol name */
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uint64_t lsb_nameindex; /* symbol name index */
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char *lsb_ver; /* symbol version */
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char *lsb_longname; /* symbol name+version (as hash key)*/
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uint64_t lsb_size; /* symbol size */
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uint64_t lsb_value; /* symbol value */
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uint16_t lsb_shndx; /* symbol section index */
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uint64_t lsb_index; /* symbol index */
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uint64_t lsb_dyn_index; /* dynamic symbol index */
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uint64_t lsb_out_index; /* symbol index (in output) */
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uint64_t lsb_got_off; /* got entry offset */
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uint64_t lsb_plt_off; /* plt entry offset */
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struct ld_script_variable *lsb_var; /* associated ldscript variable */
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unsigned char lsb_bind; /* symbol binding */
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unsigned char lsb_type; /* symbol type */
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unsigned char lsb_other; /* symbol visibility */
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unsigned char lsb_default; /* symbol is default/only version */
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unsigned char lsb_provide; /* provide symbol */
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unsigned char lsb_import; /* symbol is a import symbol */
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unsigned char lsb_ref_dso; /* symbol appeared in a DSO */
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unsigned char lsb_ref_ndso; /* symbol appeared in elsewhere */
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unsigned char lsb_dynrel; /* symbol used by dynamic reloc */
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unsigned char lsb_copy_reloc; /* symbol has copy reloc */
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unsigned char lsb_got; /* symbol has got entry */
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unsigned char lsb_plt; /* symbol has plt entry */
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unsigned char lsb_func_addr; /* symbol(function) has address */
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unsigned char lsb_tls_ld; /* local dynamic TLS symbol */
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unsigned char lsb_vndx_known; /* version index is known */
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uint16_t lsb_vndx; /* version index */
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struct ld_symver_verdef *lsb_vd; /* version definition */
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struct ld_symbol *lsb_prev; /* symbol resolved by this symbol */
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struct ld_symbol *lsb_ref; /* this symbol resolves to ... */
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struct ld_input *lsb_input; /* containing input object */
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struct ld_input_section *lsb_is; /* containing input section */
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struct ld_output_section *lsb_preset_os; /* Preset output section */
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UT_hash_handle hh; /* hash handle */
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STAILQ_ENTRY(ld_symbol) lsb_next; /* next symbol */
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STAILQ_ENTRY(ld_symbol) lsb_dyn; /* next dynamic symbol */
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};
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STAILQ_HEAD(ld_symbol_head, ld_symbol);
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struct ld_symbol_table {
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void *sy_buf;
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size_t sy_cap;
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size_t sy_size;
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size_t sy_first_nonlocal;
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size_t sy_write_pos;
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};
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struct ld_symbol_defver {
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char *dv_name;
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char *dv_longname;
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char *dv_ver;
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UT_hash_handle hh;
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};
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void ld_symbols_add_extern(struct ld *, char *);
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void ld_symbols_add_variable(struct ld *, struct ld_script_variable *,
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unsigned, unsigned);
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void ld_symbols_add_internal(struct ld *, const char *, uint64_t, uint64_t,
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uint16_t, unsigned char, unsigned char, unsigned char,
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struct ld_input_section *, struct ld_output_section *);
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void ld_symbols_build_symtab(struct ld *);
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void ld_symbols_cleanup(struct ld *);
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void ld_symbols_scan(struct ld *);
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void ld_symbols_finalize_dynsym(struct ld *);
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int ld_symbols_get_value(struct ld *, char *, uint64_t *);
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void ld_symbols_resolve(struct ld *);
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void ld_symbols_update(struct ld *);
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struct ld_symbol *ld_symbols_ref(struct ld_symbol *);
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int ld_symbols_overridden(struct ld *, struct ld_symbol *);
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int ld_symbols_in_dso(struct ld_symbol *);
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int ld_symbols_in_regular(struct ld_symbol *);
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