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Diffstat (limited to 'sys/xen/interface/libelf.h')
-rw-r--r-- | sys/xen/interface/libelf.h | 265 |
1 files changed, 0 insertions, 265 deletions
diff --git a/sys/xen/interface/libelf.h b/sys/xen/interface/libelf.h deleted file mode 100644 index d238330..0000000 --- a/sys/xen/interface/libelf.h +++ /dev/null @@ -1,265 +0,0 @@ -/****************************************************************************** - * libelf.h - * - * Permission is hereby granted, free of charge, to any person obtaining a copy - * of this software and associated documentation files (the "Software"), to - * deal in the Software without restriction, including without limitation the - * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or - * sell copies of the Software, and to permit persons to whom the Software is - * furnished to do so, subject to the following conditions: - * - * The above copyright notice and this permission notice shall be included in - * all copies or substantial portions of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR - * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE - * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER - * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING - * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER - * DEALINGS IN THE SOFTWARE. - */ - -#ifndef __XC_LIBELF__ -#define __XC_LIBELF__ 1 - -#if defined(__i386__) || defined(__x86_64__) || defined(__ia64__) -#define XEN_ELF_LITTLE_ENDIAN -#else -#error define architectural endianness -#endif - -#undef ELFSIZE -#include "elfnote.h" -#include "elfstructs.h" -#include "features.h" - -/* ------------------------------------------------------------------------ */ - -typedef union { - Elf32_Ehdr e32; - Elf64_Ehdr e64; -} elf_ehdr; - -typedef union { - Elf32_Phdr e32; - Elf64_Phdr e64; -} elf_phdr; - -typedef union { - Elf32_Shdr e32; - Elf64_Shdr e64; -} elf_shdr; - -typedef union { - Elf32_Sym e32; - Elf64_Sym e64; -} elf_sym; - -typedef union { - Elf32_Rel e32; - Elf64_Rel e64; -} elf_rel; - -typedef union { - Elf32_Rela e32; - Elf64_Rela e64; -} elf_rela; - -typedef union { - Elf32_Note e32; - Elf64_Note e64; -} elf_note; - -struct elf_binary { - /* elf binary */ - const char *image; - size_t size; - char class; - char data; - - const elf_ehdr *ehdr; - const char *sec_strtab; - const elf_shdr *sym_tab; - const char *sym_strtab; - - /* loaded to */ - char *dest; - uint64_t pstart; - uint64_t pend; - uint64_t reloc_offset; - - uint64_t bsd_symtab_pstart; - uint64_t bsd_symtab_pend; - -#ifndef __XEN__ - /* misc */ - FILE *log; -#endif - int verbose; -}; - -/* ------------------------------------------------------------------------ */ -/* accessing elf header fields */ - -#ifdef XEN_ELF_BIG_ENDIAN -# define NATIVE_ELFDATA ELFDATA2MSB -#else -# define NATIVE_ELFDATA ELFDATA2LSB -#endif - -#define elf_32bit(elf) (ELFCLASS32 == (elf)->class) -#define elf_64bit(elf) (ELFCLASS64 == (elf)->class) -#define elf_msb(elf) (ELFDATA2MSB == (elf)->data) -#define elf_lsb(elf) (ELFDATA2LSB == (elf)->data) -#define elf_swap(elf) (NATIVE_ELFDATA != (elf)->data) - -#define elf_uval(elf, str, elem) \ - ((ELFCLASS64 == (elf)->class) \ - ? elf_access_unsigned((elf), (str), \ - offsetof(typeof(*(str)),e64.elem), \ - sizeof((str)->e64.elem)) \ - : elf_access_unsigned((elf), (str), \ - offsetof(typeof(*(str)),e32.elem), \ - sizeof((str)->e32.elem))) - -#define elf_sval(elf, str, elem) \ - ((ELFCLASS64 == (elf)->class) \ - ? elf_access_signed((elf), (str), \ - offsetof(typeof(*(str)),e64.elem), \ - sizeof((str)->e64.elem)) \ - : elf_access_signed((elf), (str), \ - offsetof(typeof(*(str)),e32.elem), \ - sizeof((str)->e32.elem))) - -#define elf_size(elf, str) \ - ((ELFCLASS64 == (elf)->class) \ - ? sizeof((str)->e64) : sizeof((str)->e32)) - -uint64_t elf_access_unsigned(struct elf_binary *elf, const void *ptr, - uint64_t offset, size_t size); -int64_t elf_access_signed(struct elf_binary *elf, const void *ptr, - uint64_t offset, size_t size); - -uint64_t elf_round_up(struct elf_binary *elf, uint64_t addr); - -/* ------------------------------------------------------------------------ */ -/* xc_libelf_tools.c */ - -int elf_shdr_count(struct elf_binary *elf); -int elf_phdr_count(struct elf_binary *elf); - -const elf_shdr *elf_shdr_by_name(struct elf_binary *elf, const char *name); -const elf_shdr *elf_shdr_by_index(struct elf_binary *elf, int index); -const elf_phdr *elf_phdr_by_index(struct elf_binary *elf, int index); - -const char *elf_section_name(struct elf_binary *elf, const elf_shdr * shdr); -const void *elf_section_start(struct elf_binary *elf, const elf_shdr * shdr); -const void *elf_section_end(struct elf_binary *elf, const elf_shdr * shdr); - -const void *elf_segment_start(struct elf_binary *elf, const elf_phdr * phdr); -const void *elf_segment_end(struct elf_binary *elf, const elf_phdr * phdr); - -const elf_sym *elf_sym_by_name(struct elf_binary *elf, const char *symbol); -const elf_sym *elf_sym_by_index(struct elf_binary *elf, int index); - -const char *elf_note_name(struct elf_binary *elf, const elf_note * note); -const void *elf_note_desc(struct elf_binary *elf, const elf_note * note); -uint64_t elf_note_numeric(struct elf_binary *elf, const elf_note * note); -const elf_note *elf_note_next(struct elf_binary *elf, const elf_note * note); - -int elf_is_elfbinary(const void *image); -int elf_phdr_is_loadable(struct elf_binary *elf, const elf_phdr * phdr); - -/* ------------------------------------------------------------------------ */ -/* xc_libelf_loader.c */ - -int elf_init(struct elf_binary *elf, const char *image, size_t size); -#ifdef __XEN__ -void elf_set_verbose(struct elf_binary *elf); -#else -void elf_set_logfile(struct elf_binary *elf, FILE * log, int verbose); -#endif - -void elf_parse_binary(struct elf_binary *elf); -void elf_load_binary(struct elf_binary *elf); - -void *elf_get_ptr(struct elf_binary *elf, unsigned long addr); -uint64_t elf_lookup_addr(struct elf_binary *elf, const char *symbol); - -void elf_parse_bsdsyms(struct elf_binary *elf, uint64_t pstart); /* private */ - -/* ------------------------------------------------------------------------ */ -/* xc_libelf_relocate.c */ - -int elf_reloc(struct elf_binary *elf); - -/* ------------------------------------------------------------------------ */ -/* xc_libelf_dominfo.c */ - -#define UNSET_ADDR ((uint64_t)-1) - -enum xen_elfnote_type { - XEN_ENT_NONE = 0, - XEN_ENT_LONG = 1, - XEN_ENT_STR = 2 -}; - -struct xen_elfnote { - enum xen_elfnote_type type; - const char *name; - union { - const char *str; - uint64_t num; - } data; -}; - -struct elf_dom_parms { - /* raw */ - const char *guest_info; - const void *elf_note_start; - const void *elf_note_end; - struct xen_elfnote elf_notes[XEN_ELFNOTE_MAX + 1]; - - /* parsed */ - char guest_os[16]; - char guest_ver[16]; - char xen_ver[16]; - char loader[16]; - int pae; - int bsd_symtab; - uint64_t virt_base; - uint64_t virt_entry; - uint64_t virt_hypercall; - uint64_t virt_hv_start_low; - uint64_t elf_paddr_offset; - uint32_t f_supported[XENFEAT_NR_SUBMAPS]; - uint32_t f_required[XENFEAT_NR_SUBMAPS]; - - /* calculated */ - uint64_t virt_offset; - uint64_t virt_kstart; - uint64_t virt_kend; -}; - -static inline void elf_xen_feature_set(int nr, uint32_t * addr) -{ - addr[nr >> 5] |= 1 << (nr & 31); -} -static inline int elf_xen_feature_get(int nr, uint32_t * addr) -{ - return !!(addr[nr >> 5] & (1 << (nr & 31))); -} - -int elf_xen_parse_features(const char *features, - uint32_t *supported, - uint32_t *required); -int elf_xen_parse_note(struct elf_binary *elf, - struct elf_dom_parms *parms, - const elf_note *note); -int elf_xen_parse_guest_info(struct elf_binary *elf, - struct elf_dom_parms *parms); -int elf_xen_parse(struct elf_binary *elf, - struct elf_dom_parms *parms); - -#endif /* __XC_LIBELF__ */ |