| /branches/dynload/uspace/lib/libc/rtld/include/rtld.h |
|---|
| 0,0 → 1,74 |
| /* |
| * Copyright (c) 2008 Jiri Svoboda |
| * All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions |
| * are met: |
| * |
| * - Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * - Redistributions in binary form must reproduce the above copyright |
| * notice, this list of conditions and the following disclaimer in the |
| * documentation and/or other materials provided with the distribution. |
| * - The name of the author may not be used to endorse or promote products |
| * derived from this software without specific prior written permission. |
| * |
| * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
| * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
| * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
| * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
| * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
| * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
| * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| */ |
| /** @addtogroup generic |
| * @{ |
| */ |
| /** @file |
| */ |
| #ifndef RTLD_H_ |
| #define RTLD_H_ |
| #include <sys/types.h> |
| #include <libadt/list.h> |
| #include <dynamic.h> |
| #include <module.h> |
| /* Define to enable debugging mode. */ |
| #undef RTLD_DEBUG |
| #ifdef RTLD_DEBUG |
| #define DPRINTF(format, ...) printf(format, ##__VA_ARGS__); |
| #else |
| #define DPRINTF(format, ...) |
| #endif |
| typedef struct { |
| elf_dyn_t *rtld_dynamic; |
| module_t rtld; |
| module_t *program; |
| module_t *libc; |
| /** List of all loaded modules including rtld and the program */ |
| link_t modules_head; |
| /** Temporary hack to place each module at different address. */ |
| uintptr_t next_bias; |
| } runtime_env_t; |
| extern runtime_env_t *runtime_env; |
| extern void rtld_init_static(void); |
| #endif |
| /** @} |
| */ |
| /branches/dynload/uspace/lib/libc/rtld/include/dynamic.h |
|---|
| 0,0 → 1,107 |
| /* |
| * Copyright (c) 2008 Jiri Svoboda |
| * All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions |
| * are met: |
| * |
| * - Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * - Redistributions in binary form must reproduce the above copyright |
| * notice, this list of conditions and the following disclaimer in the |
| * documentation and/or other materials provided with the distribution. |
| * - The name of the author may not be used to endorse or promote products |
| * derived from this software without specific prior written permission. |
| * |
| * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
| * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
| * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
| * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
| * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
| * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
| * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| */ |
| /** @addtogroup generic |
| * @{ |
| */ |
| /** @file |
| */ |
| #ifndef DYNAMIC_H_ |
| #define DYNAMIC_H_ |
| #include <bool.h> |
| #include <elf_dyn.h> |
| #include <arch/dynamic.h> |
| /** |
| * Holds the data extracted from an ELF Dynamic section. |
| * |
| * The data is already pre-processed: Pointers are adjusted |
| * to their final run-time values by adding the load bias |
| * and indices into the symbol table are converted to pointers. |
| */ |
| typedef struct dyn_info { |
| /** Type of relocations used for the PLT, either DT_REL or DT_RELA */ |
| int plt_rel; |
| /** Relocation table without explicit addends */ |
| void *rel; |
| size_t rel_sz; |
| size_t rel_ent; |
| /** Relocation table with explicit addends */ |
| void *rela; |
| size_t rela_sz; |
| size_t rela_ent; |
| /** PLT relocation table */ |
| void *jmp_rel; |
| size_t plt_rel_sz; |
| /** Pointer to PLT/GOT (processor-specific) */ |
| void *plt_got; |
| /** Hash table */ |
| elf_word *hash; |
| /** String table */ |
| char *str_tab; |
| size_t str_sz; |
| /** Symbol table */ |
| void *sym_tab; |
| size_t sym_ent; |
| void *init; /**< Module initialization code */ |
| void *fini; /**< Module cleanup code */ |
| char *soname; /**< Library identifier */ |
| char *rpath; /**< Library search path list */ |
| bool symbolic; |
| bool text_rel; |
| bool bind_now; |
| /* Assume for now that there's at most one needed library */ |
| char *needed; |
| /** Pointer to the module's dynamic section */ |
| elf_dyn_t *dynamic; |
| /** Architecture-specific info. */ |
| dyn_info_arch_t arch; |
| } dyn_info_t; |
| void dynamic_parse(elf_dyn_t *dyn_ptr, size_t bias, dyn_info_t *info); |
| void dyn_parse_arch(elf_dyn_t *dp, size_t bias, dyn_info_t *info); |
| #endif |
| /** @} |
| */ |
| /branches/dynload/uspace/lib/libc/rtld/include/module.h |
|---|
| 0,0 → 1,74 |
| /* |
| * Copyright (c) 2008 Jiri Svoboda |
| * All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions |
| * are met: |
| * |
| * - Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * - Redistributions in binary form must reproduce the above copyright |
| * notice, this list of conditions and the following disclaimer in the |
| * documentation and/or other materials provided with the distribution. |
| * - The name of the author may not be used to endorse or promote products |
| * derived from this software without specific prior written permission. |
| * |
| * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
| * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
| * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
| * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
| * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
| * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
| * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| */ |
| /** @addtogroup generic |
| * @{ |
| */ |
| /** @file |
| */ |
| #ifndef MODULE_H_ |
| #define MODULE_H_ |
| #include <sys/types.h> |
| #include <dynamic.h> |
| #include <libadt/list.h> |
| typedef struct module { |
| dyn_info_t dyn; |
| size_t bias; |
| /** Array of pointers to directly dependent modules */ |
| struct module **deps; |
| /** Number of fields in deps */ |
| size_t n_deps; |
| /** True iff relocations have already been processed in this module. */ |
| bool relocated; |
| /** Link to list of all modules in runtime environment */ |
| link_t modules_link; |
| /** Link to BFS queue. Only used when doing a BFS of the module graph */ |
| link_t queue_link; |
| /** Tag for modules already processed during a BFS */ |
| bool bfs_tag; |
| } module_t; |
| void module_process_relocs(module_t *m); |
| module_t *module_find(char *name); |
| module_t *module_load(char *name); |
| void module_load_deps(module_t *m); |
| void modules_process_relocs(module_t *start); |
| void modules_untag(void); |
| #endif |
| /** @} |
| */ |
| /branches/dynload/uspace/lib/libc/rtld/include/symbol.h |
|---|
| 0,0 → 1,48 |
| /* |
| * Copyright (c) 2008 Jiri Svoboda |
| * All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions |
| * are met: |
| * |
| * - Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * - Redistributions in binary form must reproduce the above copyright |
| * notice, this list of conditions and the following disclaimer in the |
| * documentation and/or other materials provided with the distribution. |
| * - The name of the author may not be used to endorse or promote products |
| * derived from this software without specific prior written permission. |
| * |
| * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
| * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
| * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
| * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
| * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
| * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
| * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| */ |
| /** @addtogroup generic |
| * @{ |
| */ |
| /** @file |
| */ |
| #ifndef SYMBOL_H_ |
| #define SYMBOL_H_ |
| #include <rtld.h> |
| #include <elf.h> |
| elf_symbol_t *symbol_bfs_find(char *name, module_t *start, module_t **mod); |
| elf_symbol_t *symbol_def_find(char *name, module_t *origin, module_t **mod); |
| uintptr_t symbol_get_addr(elf_symbol_t *sym, module_t *m); |
| #endif |
| /** @} |
| */ |
| /branches/dynload/uspace/lib/libc/rtld/include/rtld_arch.h |
|---|
| 0,0 → 1,51 |
| /* |
| * Copyright (c) 2008 Jiri Svoboda |
| * All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions |
| * are met: |
| * |
| * - Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * - Redistributions in binary form must reproduce the above copyright |
| * notice, this list of conditions and the following disclaimer in the |
| * documentation and/or other materials provided with the distribution. |
| * - The name of the author may not be used to endorse or promote products |
| * derived from this software without specific prior written permission. |
| * |
| * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
| * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
| * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
| * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
| * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
| * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
| * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| */ |
| /** @addtogroup generic |
| * @{ |
| */ |
| /** @file |
| */ |
| #ifndef RTLD_ARCH_H_ |
| #define RTLD_ARCH_H_ |
| #include <rtld.h> |
| #include <loader/pcb.h> |
| void module_process_pre_arch(module_t *m); |
| void rel_table_process(module_t *m, elf_rel_t *rt, size_t rt_size); |
| void rela_table_process(module_t *m, elf_rela_t *rt, size_t rt_size); |
| void program_run(void *entry, pcb_t *pcb); |
| #endif |
| /** @} |
| */ |
| /branches/dynload/uspace/lib/libc/rtld/include/elf_dyn.h |
|---|
| 0,0 → 1,122 |
| /* |
| * Copyright (c) 2008 Jiri Svoboda |
| * All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions |
| * are met: |
| * |
| * - Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * - Redistributions in binary form must reproduce the above copyright |
| * notice, this list of conditions and the following disclaimer in the |
| * documentation and/or other materials provided with the distribution. |
| * - The name of the author may not be used to endorse or promote products |
| * derived from this software without specific prior written permission. |
| * |
| * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
| * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
| * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
| * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
| * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
| * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
| * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| */ |
| /** @addtogroup generic |
| * @{ |
| */ |
| /** @file |
| */ |
| #ifndef ELF_DYN_H_ |
| #define ELF_DYN_H_ |
| #include <arch/elf.h> |
| #include <sys/types.h> |
| #include <elf.h> |
| #include <arch/elf_dyn.h> |
| #define ELF32_R_SYM(i) ((i)>>8) |
| #define ELF32_R_TYPE(i) ((unsigned char)(i)) |
| struct elf32_dyn { |
| elf_sword d_tag; |
| union { |
| elf_word d_val; |
| elf32_addr d_ptr; |
| } d_un; |
| }; |
| struct elf32_rel { |
| elf32_addr r_offset; |
| elf_word r_info; |
| }; |
| struct elf32_rela { |
| elf32_addr r_offset; |
| elf_word r_info; |
| elf_sword r_addend; |
| }; |
| #ifdef __32_BITS__ |
| typedef struct elf32_dyn elf_dyn_t; |
| typedef struct elf32_rel elf_rel_t; |
| typedef struct elf32_rela elf_rela_t; |
| #endif |
| /* |
| * Dynamic array tags |
| */ |
| #define DT_NULL 0 |
| #define DT_NEEDED 1 |
| #define DT_PLTRELSZ 2 |
| #define DT_PLTGOT 3 |
| #define DT_HASH 4 |
| #define DT_STRTAB 5 |
| #define DT_SYMTAB 6 |
| #define DT_RELA 7 |
| #define DT_RELASZ 8 |
| #define DT_RELAENT 9 |
| #define DT_STRSZ 10 |
| #define DT_SYMENT 11 |
| #define DT_INIT 12 |
| #define DT_FINI 13 |
| #define DT_SONAME 14 |
| #define DT_RPATH 15 |
| #define DT_SYMBOLIC 16 |
| #define DT_REL 17 |
| #define DT_RELSZ 18 |
| #define DT_RELENT 19 |
| #define DT_PLTREL 20 |
| #define DT_DEBUG 21 |
| #define DT_TEXTREL 22 |
| #define DT_JMPREL 23 |
| #define DT_BIND_NOW 24 |
| #define DT_LOPROC 0x70000000 |
| #define DT_HIPROC 0x7fffffff |
| /* |
| * Special section indexes |
| */ |
| #define SHN_UNDEF 0 |
| #define SHN_LORESERVE 0xff00 |
| #define SHN_LOPROC 0xff00 |
| #define SHN_HIPROC 0xff1f |
| #define SHN_ABS 0xfff1 |
| #define SHN_COMMON 0xfff2 |
| #define SHN_HIRESERVE 0xffff |
| /* |
| * Special symbol table index |
| */ |
| #define STN_UNDEF 0 |
| #endif |
| /** @} |
| */ |