/* * 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 (c) 1988 AT&T * All Rights Reserved * * Copyright 2008 Sun Microsystems, Inc. All rights reserved. * Use is subject to license terms. */ /* * Local include file for ld library. */ #ifndef _LIBLD_DOT_H #define _LIBLD_DOT_H #pragma ident "%Z%%M% %I% %E% SMI" #include #include <_libelf.h> #include #include #include #include #ifdef __cplusplus extern "C" { #endif /* * In order to allow for cross linking, we need to be able to build * libld with support for multiple targets within a single object. * This is done using a global variable (ld_targ) of type Target to * access target-specific code for the current target via indirection. */ /* * Machine information for target */ typedef struct { Half m_mach; /* ELF machine code for target */ Half m_machplus; /* Alt ELF machine code for target */ /* Used for EM_SPARC32PLUS */ Word m_flagsplus; /* ELF header flags used to identify */ /* a machplus object */ uchar_t m_class; /* Target ELFCLASS */ uchar_t m_data; /* Target byte order */ Xword m_segm_align; /* segment alignment */ Xword m_segm_origin; /* Default 1st segment offset */ Word m_dataseg_perm; /* data segment permission mask */ Word m_word_align; /* alignment to use for Word sections */ const char *m_def_interp; /* Def. interpreter for dyn objects */ /* Relocation type codes */ Word m_r_arrayaddr; Word m_r_copy; Word m_r_glob_dat; Word m_r_jmp_slot; Word m_r_num; Word m_r_none; Word m_r_relative; Word m_r_register; /* Relocation related constants */ Word m_rel_dt_count; /* Either DT_REL or DT_RELA */ Word m_rel_dt_ent; /* Either DT_RELENT or DT_RELAENT */ Word m_rel_dt_size; /* Either DT_RELSZ or DT_RELASZ */ Word m_rel_dt_type; /* Either DT_RELCOUNT or DT_RELACOUNT */ Word m_rel_sht_type; /* Either SHT_REL or SHT_RELA */ /* GOT related constants */ Word m_got_entsize; Word m_got_xnumber; /* reserved # of got ents */ /* PLT related constants */ Word m_plt_align; Word m_plt_entsize; Word m_plt_reservsz; Word m_plt_shf_flags; Word m_dt_register; } Target_mach; /* * Section identifiers, used to order sections in output object */ typedef struct { Word id_array; Word id_bss; Word id_cap; Word id_data; Word id_dynamic; Word id_dynsort; Word id_dynstr; Word id_dynsym; Word id_dynsym_ndx; Word id_got; Word id_gotdata; Word id_hash; Word id_interp; Word id_lbss; Word id_ldynsym; Word id_note; Word id_null; Word id_plt; Word id_rel; Word id_strtab; Word id_syminfo; Word id_symtab; Word id_symtab_ndx; Word id_text; Word id_tls; Word id_tlsbss; Word id_unknown; Word id_unwind; Word id_user; Word id_version; } Target_machid; /* * Target_nullfunc supplies machine code for generating a * * void (*)(void) * * unnamed function. Such a function can be called, and returns * immediately without doing any work. This is used to back FUNC * symbol definitions added with a mapfile. * * The machine instructions are specified as an array of bytes rather * than a larger integer type in order to avoid byte order issues that * can otherwise occur in cross linking. */ typedef struct { const uchar_t *nf_template; /* Array of machine inst. bytes */ size_t nf_size; /* # bytes in nf_template */ } Target_nullfunc; /* * Target_machrel holds pointers to the reloc_table and machrel functions * for a given target machine. * * The following function pointers are allowed to be NULL, if the * underlying target does not require the specified operation. All * other functions must be supplied: * * mr_assign_got * mr_reloc_register * mr_reloc_GOTOP * mr_allocate_got */ typedef struct { const Rel_entry *mr_reloc_table; Word (* mr_init_rel)(Rel_desc *, void *); void (* mr_mach_eflags)(Ehdr *, Ofl_desc *); void (* mr_mach_make_dynamic)(Ofl_desc *, size_t *); void (* mr_mach_update_odynamic)(Ofl_desc *, Dyn **); Xword (* mr_calc_plt_addr)(Sym_desc *, Ofl_desc *); uintptr_t (* mr_perform_outreloc)(Rel_desc *, Ofl_desc *); uintptr_t (* mr_do_activerelocs)(Ofl_desc *); uintptr_t (* mr_add_outrel)(Word, Rel_desc *, Ofl_desc *); uintptr_t (* mr_reloc_register)(Rel_desc *, Is_desc *, Ofl_desc *); uintptr_t (* mr_reloc_local)(Rel_desc *, Ofl_desc *); uintptr_t (* mr_reloc_GOTOP)(Boolean, Rel_desc *, Ofl_desc *); uintptr_t (* mr_reloc_TLS)(Boolean, Rel_desc *, Ofl_desc *); uintptr_t (* mr_assign_got)(Ofl_desc *, Sym_desc *); Gotndx * (* mr_find_gotndx)(List *, Gotref, Ofl_desc *, Rel_desc *); Xword (* mr_calc_got_offset)(Rel_desc *, Ofl_desc *); uintptr_t (* mr_assign_got_ndx)(List *, Gotndx *, Gotref, Ofl_desc *, Rel_desc *, Sym_desc *); void (* mr_assign_plt_ndx)(Sym_desc *, Ofl_desc *); uintptr_t (* mr_allocate_got)(Ofl_desc *); uintptr_t (* mr_fillin_gotplt)(Ofl_desc *); } Target_machrel; /* * Target_machsym holds pointers to the machsym functions * for a given target machine. * * These fields are allowed to be NULL for targets that do not require * special handling of register symbols. Register symbols are used by * sparc targets. If any of these fields are non-NULL, all of them are * required to be present (use empty stub routines if necessary). */ typedef struct { int (* ms_reg_check)(Sym_desc *, Sym *, const char *, Ifl_desc *, Ofl_desc *); int (* ms_mach_sym_typecheck)(Sym_desc *, Sym *, Ifl_desc *, Ofl_desc *); const char *(* ms_is_regsym)(Ofl_desc *, Ifl_desc *, Sym *, const char *, int, Word, const char *, Word *); Sym_desc *(* ms_reg_find)(Sym * sym, Ofl_desc * ofl); int (* ms_reg_enter)(Sym_desc *, Ofl_desc *); } Target_machsym; /* * amd64 unwind header support * * These fields are allowed to be NULL for targets that do not support * amd64 unwind headers. If any of these fields are non-NULL, all of them are * required to be present (use empty stub routines if necessary). */ typedef struct { uintptr_t (* uw_make_unwindhdr)(Ofl_desc *); uintptr_t (* uw_populate_unwindhdr)(Ofl_desc *); uintptr_t (* uw_append_unwind)(Os_desc *, Ofl_desc *); } Target_unwind; typedef struct { Target_mach t_m; Target_machid t_id; Target_nullfunc t_nf; Target_machrel t_mr; Target_machsym t_ms; Target_unwind t_uw; } Target; /* * Types of bss sections */ typedef enum { MAKE_BSS, MAKE_LBSS, MAKE_TLS } Bss_Type; /* * Structure to manage the update of weak symbols from their associated alias. */ typedef struct wk_desc { Sym *wk_symtab; /* the .symtab entry */ Sym *wk_dynsym; /* the .dynsym entry */ Sym_desc *wk_weak; /* the original weak symbol */ Sym_desc *wk_alias; /* the real symbol */ } Wk_desc; /* * Structure to manage the support library interfaces. */ typedef struct func_list { const char *fl_obj; /* name of support object */ /* function is from */ void (*fl_fptr)(); /* function pointer */ uint_t fl_version; /* ld_version() level */ } Func_list; typedef struct support_list { const char *sup_name; /* ld_support function name */ List sup_funcs; /* list of support functions */ } Support_list; /* * Structure to manage a sorted output relocation list. * * rl_key1 -> pointer to needed ndx * rl_key2 -> pointer to symbol relocation is against * rl_key3 -> virtual offset of relocation */ typedef struct reloc_list { Sym_desc *rl_key2; Xword rl_key3; Rel_desc *rl_rsp; Half rl_key1; } Reloc_list; typedef struct sym_s_list { Word sl_hval; Sym_desc * sl_sdp; } Sym_s_list; /* * ld heap management structure */ typedef struct _ld_heap Ld_heap; struct _ld_heap { Ld_heap *lh_next; void *lh_free; void *lh_end; }; #define HEAPBLOCK 0x68000 /* default allocation block size */ #define HEAPALIGN 0x8 /* heap blocks alignment requirement */ /* * Dynamic per-symbol filtee string table descriptor. This associates filtee * strings that will be created in the .dynstr, with .dynamic entries. */ typedef struct { char *dft_str; /* dynstr string */ Word dft_flag; /* auxiliary/filtee type */ Half dft_ndx; /* eventual ndx into .dynamic */ } Dfltr_desc; /* * Per-symbol filtee descriptor. This associates symbol definitions with * their filtees. */ typedef struct { Sym_desc *sft_sdp; /* symbol descriptor */ Aliste sft_idx; /* index into dtstr descriptor */ } Sfltr_desc; /* * Define Alist initialization sizes. */ #define AL_CNT_IFL_GROUPS 20 /* ifl_groups initial alist count */ #define AL_CNT_OFL_DTSFLTRS 4 /* ofl_dtsfltrs initial alist count */ #define AL_CNT_OFL_SYMFLTRS 20 /* ofl_symfltrs initial alist count */ #define AL_CNT_OS_MSTRISDESCS 10 /* os_mstrisdescs */ #define AL_CNT_SG_OSDESC 40 /* sg_osdescs initial alist count */ #define AL_CNT_SG_SECORDER 40 /* sg_secorder initial alist count */ #define AL_CNT_STRMRGREL 500 /* ld_make_strmerge() reloc alist cnt */ #define AL_CNT_STRMRGSYM 20 /* ld_make_strmerge() sym alist cnt */ /* * Return codes for {tls|got}_fixups() routines */ typedef enum { FIX_ERROR, /* fatal error - time to punt */ FIX_DONE, /* relocation done - no further processing required */ FIX_RELOC /* do_reloc() relocation processing required */ } Fixupret; #ifndef FILENAME_MAX #define FILENAME_MAX BUFSIZ /* maximum length of a path name */ #endif /* * We pad the end of the .dynstr section with a block of DYNSTR_EXTRA_PAD * bytes, and we insert DYNAMIC_EXTRA_ELTS unused items into the * .dynamic section (with value DT_NULL). This provides the resources needed * to add and/or alter string items in the .dynamic section, such as runpath. */ #define DYNSTR_EXTRA_PAD 512 #define DYNAMIC_EXTRA_ELTS 10 /* * Relocation buckets are sized based on the number of input relocations and * the following constants. */ #define REL_HAIDESCNO 1000 /* high water mark active buckets */ #define REL_LAIDESCNO 50 /* low water mark active buckets */ #define REL_HOIDESCNO 500 /* high water mark output buckets */ #define REL_LOIDESCNO 10 /* low water mark output buckets */ extern char *Plibpath; extern char *Llibdir; extern char *Ulibdir; extern Ld_heap *ld_heap; extern List lib_support; extern int demangle_flag; extern const Msg reject[]; extern int Verbose; extern const int ldynsym_symtype[STT_NUM]; extern const int dynsymsort_symtype[STT_NUM]; /* * Given a symbol of a type that is allowed within a .SUNW_dynsymsort or * .SUNW_dyntlssort section, examine the symbol attributes to determine * if this particular symbol should be included or not. * * entry: * The symbol must have an allowed type: Either a type verified by * dynsymsort_symtype[] or STT_TLS. * * _sdp - Pointer to symbol descriptor * _sym - Pointer to symbol referenced by _sdp. * * _sym is derivable from _sdp: _sdp->sd_sym * However, most callers assign it to a local variable for efficiency, * and this macro allows such a variable to be used within. If you * don't have such a variable, supply _sdp->sd_sym. * * The tests used require some explanation: * * (_sdp->sd_flags & FLG_SY_DYNSORT) * Some special symbols are kept even if they don't meet the * usual requirements. These symbols have the FLG_SY_DYNSORT * bit set. If this bit isn't set then we look at the other * attributes. * * ((_sdp->sd_ref != REF_DYN_NEED) || (_sdp->sd_flags & FLG_SY_MVTOCOMM)) * We do not want to include symbols that are not defined within * the object we are creating. REF_DYN_NEED corresponds to those * UNDEF items. However, if the symbol is the target of a copy * relocation, then it effectively becomes defined within the * object after all. FLG_SY_MVTOCOMM indicates a copy relocation, * and prevents us from culling those exceptions. * * (_sym->st_size != 0) * Symbols with 0 length are labels injected by the compilers * or the linker for purposes of code generation, and do * not directly correspond to actual code. In fact, most of the * symbols we mark with FLG_SY_DYNSORT need that flag set because * they have size 0. This size test filters out the others. * * !(_sdp->sd_flags & FLG_SY_NODYNSORT) * Some symbols are not kept, even though they do meet the usual * requirements. These symbols have FLG_SY_NODYNSORT set. * For example, if there are weak and non-weak versions of a given * symbol, we only want to keep one of them. So, we set * FLG_SY_NODYNSORT on the one we don't want. */ #define DYNSORT_TEST_ATTR(_sdp, _sym) \ ((_sdp->sd_flags & FLG_SY_DYNSORT) || \ (((_sdp->sd_ref != REF_DYN_NEED) || \ (_sdp->sd_flags & FLG_SY_MVTOCOMM)) && \ (_sym->st_size != 0) && \ !(_sdp->sd_flags & FLG_SY_NODYNSORT))) /* * We use output section descriptor counters to add up the number of * symbol indexes to put in the .SUNW_dynsort and .SUNW_dyntlssort sections. * Non-TLS symbols are counted by ofl->ofl_dynsymsortcnt, while TLS symbols are * counted by ofl->ofl_dyntlssortcnt. This computation is done inline in * several places. The DYNSORT_COUNT macro allows us to generate this from * a single description. * * entry: * _sdp, _sym - As per DYNSORT_TEST_ATTR * _type - Type of symbol (STT_*) * _inc_or_dec_op - Either ++, or --. This specifies the operation * to be applied to the counter, and determines whether we * are adding, or removing, a symbol from .SUNW_dynsymsort. * * Note that _type is derivable from _sym: ELF_ST_TYPE(_sdp->sd_sym->st_info). * Most callers already have it in a variable, so this allows us to use that * variable. If you don't have such a variable, use ELF_ST_TYPE() as shown. */ #define DYNSORT_COUNT(_sdp, _sym, _type, _inc_or_dec_op) \ { \ Word *_cnt_var; \ \ if (dynsymsort_symtype[_type]) { /* Non-TLS counter */ \ _cnt_var = &ofl->ofl_dynsymsortcnt; \ } else if ((_type) == STT_TLS) { /* TLS counter */ \ _cnt_var = &ofl->ofl_dyntlssortcnt; \ } else { /* Don't count this symbol */ \ _cnt_var = NULL; \ } \ if ((_cnt_var != NULL) && DYNSORT_TEST_ATTR(_sdp, _sym)) \ (*_cnt_var)_inc_or_dec_op; /* Increment/Decrement */ \ } /* * The OFL_SWAP_RELOC macros are used to determine whether * relocation processing needs to swap the data being relocated. * It is an optimization to ld_swap_reloc_data(), as it avoids * the function call in the case where the linker host and the * target have the same byte order. */ #define OFL_SWAP_RELOC_DATA(_ofl, _rel) \ (((_ofl)->ofl_flags1 & FLG_OF1_ENCDIFF) && \ ld_swap_reloc_data(_ofl, _rel)) /* * For backward compatibility provide a /dev/zero file descriptor. */ extern int dz_fd; /* * Local functions. */ extern char *add_string(char *, char *); extern const char *demangle(const char *); extern void lds_atexit(Ofl_desc *, int); extern void libld_free(void *); extern void *libld_malloc(size_t); extern void *libld_realloc(void *, size_t); extern Listnode *list_appendc(List *, const void *); extern Listnode *list_insertc(List *, const void *, Listnode *); extern Listnode *list_prependc(List *, const void *); extern Listnode *list_where(List *, Word num); extern Sdf_desc *sdf_add(const char *, List *); extern Sdf_desc *sdf_find(const char *, List *); #if defined(_ELF64) #define ld_add_actrel ld64_add_actrel #define ld_add_libdir ld64_add_libdir #define ld_adj_movereloc ld64_adj_movereloc #define ld_am_I_partial ld64_am_I_partial #define ld_append_isp ld64_append_isp #define ld_ar_member ld64_ar_member #define ld_ar_setup ld64_ar_setup #define ld_assign_got_TLS ld64_assign_got_TLS #define ld_bswap_Word ld64_bswap_Word #define ld_bswap_Xword ld64_bswap_Xword #define ld_disp_errmsg ld64_disp_errmsg #define ld_ent_check ld64_ent_check #define ld_exit ld64_exit #define ld_find_library ld64_find_library #define ld_finish_libs ld64_finish_libs #define ld_get_group ld64_get_group #define ld_lib_setup ld64_lib_setup #define ld_init ld64_init #define ld_lcm ld64_lcm #define ld_make_bss ld64_make_bss #define ld_make_data ld64_make_data #define ld_make_got ld64_make_got #define ld_make_sunwbss ld64_make_sunwbss #define ld_make_sunwdata ld64_make_sunwdata #define ld_make_sunwmove ld64_make_sunmove #define ld_make_text ld64_make_text #define ld_map_out ld64_map_out #define ld_map_parse ld64_map_parse #define ld_open_outfile ld64_open_outfile #define ld_place_section ld64_place_section #define ld_process_archive ld64_process_archive #define ld_process_files ld64_process_files #define ld_process_flags ld64_process_flags #define ld_process_ifl ld64_process_ifl #define ld_process_ordered ld64_process_ordered #define ld_process_sym_reloc ld64_process_sym_reloc #define ld_reloc_GOT_relative ld64_reloc_GOT_relative #define ld_reloc_plt ld64_reloc_plt #define ld_reloc_remain_entry ld64_reloc_remain_entry #define ld_reloc_targval_get ld64_reloc_targval_get #define ld_reloc_targval_set ld64_reloc_targval_set #define ld_sec_validate ld64_sec_validate #define ld_section_reld_name ld64_section_reld_name #define ld_sort_ordered ld64_sort_ordered #define ld_sort_seg_list ld64_sort_seg_list #define ld_sunw_ldmach ld64_sunw_ldmach #define ld_sunwmove_preprocess ld64_sunwmove_preprocess #define ld_sup_atexit ld64_sup_atexit #define ld_sup_open ld64_sup_open #define ld_sup_file ld64_sup_file #define ld_sup_loadso ld64_sup_loadso #define ld_sup_input_done ld64_sup_input_done #define ld_sup_input_section ld64_sup_input_section #define ld_sup_section ld64_sup_section #define ld_sup_start ld64_sup_start #define ld_swap_reloc_data ld64_swap_reloc_data #define ld_sym_add_u ld64_sym_add_u #define ld_sym_adjust_vis ld64_sym_adjust_vis #define ld_sym_avl_comp ld64_sym_avl_comp #define ld_sym_copy ld64_sym_copy #define ld_sym_enter ld64_sym_enter #define ld_sym_find ld64_sym_find #define ld_sym_nodirect ld64_sym_nodirect #define ld_sym_process ld64_sym_process #define ld_sym_resolve ld64_sym_resolve #define ld_sym_spec ld64_sym_spec #define ld_targ ld64_targ #define ld_targ_init_sparc ld64_targ_init_sparc #define ld_targ_init_x86 ld64_targ_init_x86 #define ld_vers_base ld64_vers_base #define ld_vers_check_defs ld64_vers_check_defs #define ld_vers_check_need ld64_vers_check_need #define ld_vers_def_process ld64_vers_def_process #define ld_vers_desc ld64_vers_desc #define ld_vers_find ld64_vers_find #define ld_vers_need_process ld64_vers_need_process #define ld_vers_promote ld64_vers_promote #define ld_vers_sym_process ld64_vers_sym_process #define ld_vers_verify ld64_vers_verify #else #define ld_add_actrel ld32_add_actrel #define ld_add_libdir ld32_add_libdir #define ld_adj_movereloc ld32_adj_movereloc #define ld_am_I_partial ld32_am_I_partial #define ld_append_isp ld32_append_isp #define ld_ar_member ld32_ar_member #define ld_ar_setup ld32_ar_setup #define ld_assign_got_TLS ld32_assign_got_TLS #define ld_bswap_Word ld32_bswap_Word #define ld_bswap_Xword ld32_bswap_Xword #define ld_disp_errmsg ld32_disp_errmsg #define ld_ent_check ld32_ent_check #define ld_exit ld32_exit #define ld_find_library ld32_find_library #define ld_finish_libs ld32_finish_libs #define ld_section_reld_name ld32_section_reld_name #define ld_get_group ld32_get_group #define ld_lib_setup ld32_lib_setup #define ld_init ld32_init #define ld_lcm ld32_lcm #define ld_make_bss ld32_make_bss #define ld_make_data ld32_make_data #define ld_make_got ld32_make_got #define ld_make_sunwbss ld32_make_sunwbss #define ld_make_sunwdata ld32_make_sunwdata #define ld_make_sunwmove ld32_make_sunmove #define ld_make_text ld32_make_text #define ld_map_out ld32_map_out #define ld_map_parse ld32_map_parse #define ld_open_outfile ld32_open_outfile #define ld_place_section ld32_place_section #define ld_process_archive ld32_process_archive #define ld_process_files ld32_process_files #define ld_process_flags ld32_process_flags #define ld_process_ifl ld32_process_ifl #define ld_process_ordered ld32_process_ordered #define ld_process_sym_reloc ld32_process_sym_reloc #define ld_reloc_GOT_relative ld32_reloc_GOT_relative #define ld_reloc_plt ld32_reloc_plt #define ld_reloc_remain_entry ld32_reloc_remain_entry #define ld_reloc_targval_get ld32_reloc_targval_get #define ld_reloc_targval_set ld32_reloc_targval_set #define ld_sec_validate ld32_sec_validate #define ld_sort_ordered ld32_sort_ordered #define ld_sort_seg_list ld32_sort_seg_list #define ld_sunw_ldmach ld32_sunw_ldmach #define ld_sunwmove_preprocess ld32_sunwmove_preprocess #define ld_sup_atexit ld32_sup_atexit #define ld_sup_open ld32_sup_open #define ld_sup_file ld32_sup_file #define ld_sup_loadso ld32_sup_loadso #define ld_sup_input_done ld32_sup_input_done #define ld_sup_input_section ld32_sup_input_section #define ld_sup_section ld32_sup_section #define ld_sup_start ld32_sup_start #define ld_swap_reloc_data ld32_swap_reloc_data #define ld_sym_add_u ld32_sym_add_u #define ld_sym_adjust_vis ld32_sym_adjust_vis #define ld_sym_avl_comp ld32_sym_avl_comp #define ld_sym_copy ld32_sym_copy #define ld_sym_enter ld32_sym_enter #define ld_sym_find ld32_sym_find #define ld_sym_nodirect ld32_sym_nodirect #define ld_sym_process ld32_sym_process #define ld_sym_resolve ld32_sym_resolve #define ld_sym_spec ld32_sym_spec #define ld_targ ld32_targ #define ld_targ_init_sparc ld32_targ_init_sparc #define ld_targ_init_x86 ld32_targ_init_x86 #define ld_vers_base ld32_vers_base #define ld_vers_check_defs ld32_vers_check_defs #define ld_vers_check_need ld32_vers_check_need #define ld_vers_def_process ld32_vers_def_process #define ld_vers_desc ld32_vers_desc #define ld_vers_find ld32_vers_find #define ld_vers_need_process ld32_vers_need_process #define ld_vers_promote ld32_vers_promote #define ld_vers_sym_process ld32_vers_sym_process #define ld_vers_verify ld32_vers_verify #endif extern uintptr_t dbg_setup(const char *, Dbg_desc *, const char **, int); extern uintptr_t ld_add_actrel(Word, Rel_desc *, Ofl_desc *); extern uintptr_t ld_add_libdir(Ofl_desc *, const char *); extern void ld_adj_movereloc(Ofl_desc *, Rel_desc *); extern Sym_desc * ld_am_I_partial(Rel_desc *, Xword); extern int ld_append_isp(Ofl_desc *, Os_desc *, Is_desc *, int); extern void ld_ar_member(Ar_desc *, Elf_Arsym *, Ar_aux *, Ar_mem *); extern Ar_desc *ld_ar_setup(const char *, Elf *, Ofl_desc *); extern uintptr_t ld_assign_got_TLS(Boolean, Rel_desc *, Ofl_desc *, Sym_desc *, Gotndx *, Gotref, Word, Word, Word, Word); extern Word ld_bswap_Word(Word); extern Xword ld_bswap_Xword(Xword); extern void ld_disp_errmsg(const char *, Rel_desc *, Ofl_desc *); extern void ld_ent_check(Ofl_desc *); extern int ld_exit(Ofl_desc *); extern uintptr_t ld_find_library(const char *, Ofl_desc *); extern uintptr_t ld_finish_libs(Ofl_desc *); extern const char *ld_section_reld_name(Sym_desc *, Is_desc *); extern Group_desc *ld_get_group(Ofl_desc *, Is_desc *); extern uintptr_t ld_lib_setup(Ofl_desc *); extern void ld_init(Ofl_desc *); extern Xword ld_lcm(Xword, Xword); extern uintptr_t ld_make_bss(Ofl_desc *, Xword, Xword, Bss_Type); extern Is_desc *ld_make_data(Ofl_desc *, size_t); extern uintptr_t ld_make_got(Ofl_desc *); extern uintptr_t ld_make_sunwbss(Ofl_desc *, size_t, Xword); extern uintptr_t ld_make_sunwdata(Ofl_desc *, size_t, Xword); extern uintptr_t ld_make_sunwmove(Ofl_desc *, int); extern Is_desc *ld_make_text(Ofl_desc *, size_t); extern void ld_map_out(Ofl_desc *); extern uintptr_t ld_map_parse(const char *, Ofl_desc *); extern uintptr_t ld_open_outfile(Ofl_desc *); extern Os_desc * ld_place_section(Ofl_desc *, Is_desc *, int, Word); extern uintptr_t ld_process_archive(const char *, int, Ar_desc *, Ofl_desc *); extern uintptr_t ld_process_files(Ofl_desc *, int, char **); extern uintptr_t ld_process_flags(Ofl_desc *, int, char **); extern Ifl_desc *ld_process_ifl(const char *, const char *, int, Elf *, Word, Ofl_desc *, Rej_desc *); extern uintptr_t ld_process_ordered(Ifl_desc *, Ofl_desc *, Word, Word); extern uintptr_t ld_process_sym_reloc(Ofl_desc *, Rel_desc *, Rel *, Is_desc *, const char *); extern uintptr_t ld_reloc_GOT_relative(Boolean, Rel_desc *, Ofl_desc *); extern uintptr_t ld_reloc_plt(Rel_desc *, Ofl_desc *); extern void ld_reloc_remain_entry(Rel_desc *, Os_desc *, Ofl_desc *); extern int ld_reloc_targval_get(Ofl_desc *, Rel_desc *, uchar_t *, Xword *); extern int ld_reloc_targval_set(Ofl_desc *, Rel_desc *, uchar_t *, Xword); extern void ld_sec_validate(Ofl_desc *); extern uintptr_t ld_sort_ordered(Ofl_desc *); extern uintptr_t ld_sort_seg_list(Ofl_desc *); extern Half ld_sunw_ldmach(); extern uintptr_t ld_sunwmove_preprocess(Ofl_desc *); extern void ld_sup_atexit(Ofl_desc *, int); extern void ld_sup_open(Ofl_desc *, const char **, const char **, int *, int, Elf **, Elf *ref, size_t, const Elf_Kind); extern void ld_sup_file(Ofl_desc *, const char *, const Elf_Kind, int flags, Elf *); extern uintptr_t ld_sup_loadso(Ofl_desc *, const char *); extern void ld_sup_input_done(Ofl_desc *); extern void ld_sup_section(Ofl_desc *, const char *, Shdr *, Word, Elf_Data *, Elf *); extern uintptr_t ld_sup_input_section(Ofl_desc*, Ifl_desc *, const char *, Shdr **, Word, Elf_Scn *, Elf *); extern void ld_sup_start(Ofl_desc *, const Half, const char *); extern int ld_swap_reloc_data(Ofl_desc *, Rel_desc *); extern Sym_desc *ld_sym_add_u(const char *, Ofl_desc *, Msg); extern void ld_sym_adjust_vis(Sym_desc *, Ofl_desc *); extern int ld_sym_avl_comp(const void *, const void *); extern uintptr_t ld_sym_copy(Sym_desc *); extern Sym_desc *ld_sym_enter(const char *, Sym *, Word, Ifl_desc *, Ofl_desc *, Word, Word, Word, Half, avl_index_t *); extern Sym_desc *ld_sym_find(const char *, Word, avl_index_t *, Ofl_desc *); extern uintptr_t ld_sym_nodirect(Is_desc *, Ifl_desc *, Ofl_desc *); extern uintptr_t ld_sym_process(Is_desc *, Ifl_desc *, Ofl_desc *); extern uintptr_t ld_sym_resolve(Sym_desc *, Sym *, Ifl_desc *, Ofl_desc *, int, Word, Word); extern uintptr_t ld_sym_spec(Ofl_desc *); extern Target ld_targ; extern const Target *ld_targ_init_sparc(void); extern const Target *ld_targ_init_x86(void); extern Ver_desc *ld_vers_base(Ofl_desc *); extern uintptr_t ld_vers_check_defs(Ofl_desc *); extern uintptr_t ld_vers_check_need(Ofl_desc *); extern uintptr_t ld_vers_def_process(Is_desc *, Ifl_desc *, Ofl_desc *); extern Ver_desc *ld_vers_desc(const char *, Word, List *); extern Ver_desc *ld_vers_find(const char *, Word, List *); extern uintptr_t ld_vers_need_process(Is_desc *, Ifl_desc *, Ofl_desc *); extern void ld_vers_promote(Sym_desc *, Word, Ifl_desc *, Ofl_desc *); extern int ld_vers_sym_process(Lm_list *, Is_desc *, Ifl_desc *); extern int ld_vers_verify(Ofl_desc *); extern uintptr_t add_regsym(Sym_desc *, Ofl_desc *); extern Word hashbkts(Word); extern Xword lcm(Xword, Xword); extern Listnode * list_where(List *, Word); /* * Most platforms have both a 32 and 64-bit variant (e.g. EM_SPARC and * EM_SPARCV9). To support this, there many files in libld that are built * twice, once for ELFCLASS64 (_ELF64), and once for ELFCLASS32. In these * files, we sometimes want to supply one value for the ELFCLASS32 case * and another for ELFCLASS64. The LD_TARG_BYCLASS macro is used to do * this. It is called with both both alternatives, and yields the one * that applies to the current compilation environment. */ #ifdef _ELF64 #define LD_TARG_BYCLASS(_ec32, _ec64) (_ec64) #else #define LD_TARG_BYCLASS(_ec32, _ec64) (_ec32) #endif #ifdef __cplusplus } #endif #endif /* _LIBLD_DOT_H */