1#ifndef _INTERNAL_RELOC_H
  2#define _INTERNAL_RELOC_H
  3
  4#include <features.h>
  5#include <elf.h>
  6#include <stdint.h>
  7#include <stddef.h>
  8#include <stdarg.h>
  9
 10#if UINTPTR_MAX == 0xffffffff
 11typedef Elf32_Ehdr Ehdr;
 12typedef Elf32_Phdr Phdr;
 13typedef Elf32_Sym Sym;
 14#define R_TYPE(x) ((x)&255)
 15#define R_SYM(x) ((x)>>8)
 16#define R_INFO ELF32_R_INFO
 17#else
 18typedef Elf64_Ehdr Ehdr;
 19typedef Elf64_Phdr Phdr;
 20typedef Elf64_Sym Sym;
 21#define R_TYPE(x) ((x)&0x7fffffff)
 22#define R_SYM(x) ((x)>>32)
 23#define R_INFO ELF64_R_INFO
 24#endif
 25
 26/* These enum constants provide unmatchable default values for
 27 * any relocation type the arch does not use. */
 28enum {
 29	REL_NONE = 0,
 30	REL_SYMBOLIC = -100,
 31	REL_USYMBOLIC,
 32	REL_GOT,
 33	REL_PLT,
 34	REL_RELATIVE,
 35	REL_OFFSET,
 36	REL_OFFSET32,
 37	REL_COPY,
 38	REL_SYM_OR_REL,
 39	REL_DTPMOD,
 40	REL_DTPOFF,
 41	REL_TPOFF,
 42	REL_TPOFF_NEG,
 43	REL_TLSDESC,
 44	REL_FUNCDESC,
 45	REL_FUNCDESC_VAL,
 46};
 47
 48struct fdpic_loadseg {
 49	uintptr_t addr, p_vaddr, p_memsz;
 50};
 51
 52struct fdpic_loadmap {
 53	unsigned short version, nsegs;
 54	struct fdpic_loadseg segs[];
 55};
 56
 57struct fdpic_dummy_loadmap {
 58	unsigned short version, nsegs;
 59	struct fdpic_loadseg segs[1];
 60};
 61
 62#include "reloc.h"
 63
 64#ifndef FDPIC_CONSTDISP_FLAG
 65#define FDPIC_CONSTDISP_FLAG 0
 66#endif
 67
 68#ifndef DL_FDPIC
 69#define DL_FDPIC 0
 70#endif
 71
 72#ifndef DL_NOMMU_SUPPORT
 73#define DL_NOMMU_SUPPORT 0
 74#endif
 75
 76#ifndef TLSDESC_BACKWARDS
 77#define TLSDESC_BACKWARDS 0
 78#endif
 79
 80#if !DL_FDPIC
 81#define IS_RELATIVE(x,s) ( \
 82	(R_TYPE(x) == REL_RELATIVE) || \
 83	(R_TYPE(x) == REL_SYM_OR_REL && !R_SYM(x)) )
 84#else
 85#define IS_RELATIVE(x,s) ( ( \
 86	(R_TYPE(x) == REL_FUNCDESC_VAL) || \
 87	(R_TYPE(x) == REL_SYMBOLIC) ) \
 88	&& (((s)[R_SYM(x)].st_info & 0xf) == STT_SECTION) )
 89#endif
 90
 91#ifndef NEED_MIPS_GOT_RELOCS
 92#define NEED_MIPS_GOT_RELOCS 0
 93#endif
 94
 95#ifndef DT_DEBUG_INDIRECT
 96#define DT_DEBUG_INDIRECT 0
 97#endif
 98
 99#ifndef DT_DEBUG_INDIRECT_REL
100#define DT_DEBUG_INDIRECT_REL 0
101#endif
102
103#define AUX_CNT 32
104#define DYN_CNT 37
105
106typedef void (*stage2_func)(unsigned char *, size_t *);
107
108hidden void *__dlsym(void *restrict, const char *restrict, void *restrict);
109
110hidden void __dl_seterr(const char *, ...);
111hidden int __dl_invalid_handle(void *);
112hidden void __dl_vseterr(const char *, va_list);
113
114hidden ptrdiff_t __tlsdesc_static(), __tlsdesc_dynamic();
115
116hidden extern int __malloc_replaced;
117hidden extern int __aligned_alloc_replaced;
118hidden void __malloc_donate(char *, char *);
119hidden int __malloc_allzerop(void *);
120
121#endif