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#ifndef _INTERNAL_RELOC_H
#define _INTERNAL_RELOC_H
#include <features.h>
#include <elf.h>
#include <stdint.h>
#include <stddef.h>
#include <stdarg.h>
#ifdef __EMSCRIPTEN__
// Declare `struct dso` in this header so that it is visible to gen_struct_info.
#include <emscripten/emscripten.h>
struct dso {
// Pointer back to the dlevent in the event sequence which loaded this DSO.
struct dlevent* event;
// Flags used to open the library. We need to cache these so that other
// threads can mirror the open library state.
int flags;
// Location in memory/table of static data/static function addresses
// The first thread to load a given module alloces the memory and table
// address space and then sets this field to non-zero.
uint8_t mem_allocated;
void* mem_addr;
size_t mem_size;
void* table_addr;
size_t table_size;
// For DSO load events, where the DSO comes from a file on disc, this
// is a pointer the file data read in by the laoding thread and shared with
// others.
uint8_t* file_data;
size_t file_data_size;
// Flexible array; must be final element of struct
char name[];
};
#else
#if UINTPTR_MAX == 0xffffffff
typedef Elf32_Ehdr Ehdr;
typedef Elf32_Phdr Phdr;
typedef Elf32_Sym Sym;
#define R_TYPE(x) ((x)&255)
#define R_SYM(x) ((x)>>8)
#define R_INFO ELF32_R_INFO
#else
typedef Elf64_Ehdr Ehdr;
typedef Elf64_Phdr Phdr;
typedef Elf64_Sym Sym;
#define R_TYPE(x) ((x)&0x7fffffff)
#define R_SYM(x) ((x)>>32)
#define R_INFO ELF64_R_INFO
#endif
/* These enum constants provide unmatchable default values for
* any relocation type the arch does not use. */
enum {
REL_NONE = 0,
REL_SYMBOLIC = -100,
REL_USYMBOLIC,
REL_GOT,
REL_PLT,
REL_RELATIVE,
REL_OFFSET,
REL_OFFSET32,
REL_COPY,
REL_SYM_OR_REL,
REL_DTPMOD,
REL_DTPOFF,
REL_TPOFF,
REL_TPOFF_NEG,
REL_TLSDESC,
REL_FUNCDESC,
REL_FUNCDESC_VAL,
};
struct fdpic_loadseg {
uintptr_t addr, p_vaddr, p_memsz;
};
struct fdpic_loadmap {
unsigned short version, nsegs;
struct fdpic_loadseg segs[];
};
struct fdpic_dummy_loadmap {
unsigned short version, nsegs;
struct fdpic_loadseg segs[1];
};
#ifndef FDPIC_CONSTDISP_FLAG
#define FDPIC_CONSTDISP_FLAG 0
#endif
#ifndef DL_FDPIC
#define DL_FDPIC 0
#endif
#ifndef DL_NOMMU_SUPPORT
#define DL_NOMMU_SUPPORT 0
#endif
#ifndef TLSDESC_BACKWARDS
#define TLSDESC_BACKWARDS 0
#endif
#if !DL_FDPIC
#define IS_RELATIVE(x,s) ( \
(R_TYPE(x) == REL_RELATIVE) || \
(R_TYPE(x) == REL_SYM_OR_REL && !R_SYM(x)) )
#else
#define IS_RELATIVE(x,s) ( ( \
(R_TYPE(x) == REL_FUNCDESC_VAL) || \
(R_TYPE(x) == REL_SYMBOLIC) ) \
&& (((s)[R_SYM(x)].st_info & 0xf) == STT_SECTION) )
#endif
#ifndef NEED_MIPS_GOT_RELOCS
#define NEED_MIPS_GOT_RELOCS 0
#endif
#ifndef DT_DEBUG_INDIRECT
#define DT_DEBUG_INDIRECT 0
#endif
#ifndef DT_DEBUG_INDIRECT_REL
#define DT_DEBUG_INDIRECT_REL 0
#endif
#define AUX_CNT 32
#define DYN_CNT 37
typedef void (*stage2_func)(unsigned char *, size_t *);
#endif // __EMSCRIPTEN__
hidden void *__dlsym(void *restrict, const char *restrict, void *restrict);
hidden void __dl_seterr(const char *, ...);
hidden int __dl_invalid_handle(void *);
hidden void __dl_vseterr(const char *, va_list);
hidden ptrdiff_t __tlsdesc_static(), __tlsdesc_dynamic();
hidden extern int __malloc_replaced;
hidden extern int __aligned_alloc_replaced;
hidden void __malloc_donate(char *, char *);
hidden int __malloc_allzerop(void *);
#endif
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