1 /* 2 * Copyright (c) 2003, 2020, Oracle and/or its affiliates. All rights reserved. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 * 5 * This code is free software; you can redistribute it and/or modify it 6 * under the terms of the GNU General Public License version 2 only, as 7 * published by the Free Software Foundation. 8 * 9 * This code is distributed in the hope that it will be useful, but WITHOUT 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 12 * version 2 for more details (a copy is included in the LICENSE file that 13 * accompanied this code). 14 * 15 * You should have received a copy of the GNU General Public License version 16 * 2 along with this work; if not, write to the Free Software Foundation, 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 18 * 19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 20 * or visit www.oracle.com if you need additional information or have any 21 * questions. 22 * 23 */ 24 25 #ifndef _SALIBELF_H_ 26 #define _SALIBELF_H_ 27 28 #include <elf.h> 29 #include "elfmacros.h" 30 #include "libproc_impl.h" 31 32 struct elf_section { 33 ELF_SHDR *c_shdr; 34 void *c_data; 35 }; 36 37 // read ELF file header. 38 int read_elf_header(int fd, ELF_EHDR* ehdr); 39 40 // is given file descriptor corresponds to an ELF file? 41 bool is_elf_file(int fd); 42 43 // read program header table of an ELF file. caller has to 44 // free the result pointer after use. NULL on failure. 45 ELF_PHDR* read_program_header_table(int fd, ELF_EHDR* hdr); 46 47 // read section header table of an ELF file. caller has to 48 // free the result pointer after use. NULL on failure. 49 ELF_SHDR* read_section_header_table(int fd, ELF_EHDR* hdr); 50 51 // read a particular section's data. caller has to free the 52 // result pointer after use. NULL on failure. 53 void* read_section_data(int fd, ELF_EHDR* ehdr, ELF_SHDR* shdr); 54 55 // find the base address at which the library wants to load itself 56 uintptr_t find_base_address(int fd, ELF_EHDR* ehdr); 57 58 // Find an ELF section. 59 struct elf_section *find_section_by_name(char *name, 60 int fd, 61 ELF_EHDR *ehdr, 62 struct elf_section *scn_cache); 63 #endif /* _SALIBELF_H_ */