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? PNG ?%k25u25%fgd5n!? PNG ?%k25u25%fgd5n!? PNG ?%k25u25%fgd5n!? PNG ?%k25u25%fgd5n!usr/include/link.h 0000644 00000016062 15252533427 0010123 0 ustar 00 /* Data structure for communication from the run-time dynamic linker for
loaded ELF shared objects.
Copyright (C) 1995-2018 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
The GNU C Library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with the GNU C Library; if not, see
. */
#ifndef _LINK_H
#define _LINK_H 1
#include
#include
#include
#include
/* We use this macro to refer to ELF types independent of the native wordsize.
`ElfW(TYPE)' is used in place of `Elf32_TYPE' or `Elf64_TYPE'. */
#define ElfW(type) _ElfW (Elf, __ELF_NATIVE_CLASS, type)
#define _ElfW(e,w,t) _ElfW_1 (e, w, _##t)
#define _ElfW_1(e,w,t) e##w##t
#include /* Defines __ELF_NATIVE_CLASS. */
#include
/* Rendezvous structure used by the run-time dynamic linker to communicate
details of shared object loading to the debugger. If the executable's
dynamic section has a DT_DEBUG element, the run-time linker sets that
element's value to the address where this structure can be found. */
struct r_debug
{
int r_version; /* Version number for this protocol. */
struct link_map *r_map; /* Head of the chain of loaded objects. */
/* This is the address of a function internal to the run-time linker,
that will always be called when the linker begins to map in a
library or unmap it, and again when the mapping change is complete.
The debugger can set a breakpoint at this address if it wants to
notice shared object mapping changes. */
ElfW(Addr) r_brk;
enum
{
/* This state value describes the mapping change taking place when
the `r_brk' address is called. */
RT_CONSISTENT, /* Mapping change is complete. */
RT_ADD, /* Beginning to add a new object. */
RT_DELETE /* Beginning to remove an object mapping. */
} r_state;
ElfW(Addr) r_ldbase; /* Base address the linker is loaded at. */
};
/* This is the instance of that structure used by the dynamic linker. */
extern struct r_debug _r_debug;
/* This symbol refers to the "dynamic structure" in the `.dynamic' section
of whatever module refers to `_DYNAMIC'. So, to find its own
`struct r_debug', a program could do:
for (dyn = _DYNAMIC; dyn->d_tag != DT_NULL; ++dyn)
if (dyn->d_tag == DT_DEBUG)
r_debug = (struct r_debug *) dyn->d_un.d_ptr;
*/
extern ElfW(Dyn) _DYNAMIC[];
/* Structure describing a loaded shared object. The `l_next' and `l_prev'
members form a chain of all the shared objects loaded at startup.
These data structures exist in space used by the run-time dynamic linker;
modifying them may have disastrous results. */
struct link_map
{
/* These first few members are part of the protocol with the debugger.
This is the same format used in SVR4. */
ElfW(Addr) l_addr; /* Difference between the address in the ELF
file and the addresses in memory. */
char *l_name; /* Absolute file name object was found in. */
ElfW(Dyn) *l_ld; /* Dynamic section of the shared object. */
struct link_map *l_next, *l_prev; /* Chain of loaded objects. */
};
#ifdef __USE_GNU
/* Version numbers for la_version handshake interface. */
#include
/* Activity types signaled through la_activity. */
enum
{
LA_ACT_CONSISTENT, /* Link map consistent again. */
LA_ACT_ADD, /* New object will be added. */
LA_ACT_DELETE /* Objects will be removed. */
};
/* Values representing origin of name for dynamic loading. */
enum
{
LA_SER_ORIG = 0x01, /* Original name. */
LA_SER_LIBPATH = 0x02, /* Directory from LD_LIBRARY_PATH. */
LA_SER_RUNPATH = 0x04, /* Directory from RPATH/RUNPATH. */
LA_SER_CONFIG = 0x08, /* Found through ldconfig. */
LA_SER_DEFAULT = 0x40, /* Default directory. */
LA_SER_SECURE = 0x80 /* Unused. */
};
/* Values for la_objopen return value. */
enum
{
LA_FLG_BINDTO = 0x01, /* Audit symbols bound to this object. */
LA_FLG_BINDFROM = 0x02 /* Audit symbols bound from this object. */
};
/* Values for la_symbind flags parameter. */
enum
{
LA_SYMB_NOPLTENTER = 0x01, /* la_pltenter will not be called. */
LA_SYMB_NOPLTEXIT = 0x02, /* la_pltexit will not be called. */
LA_SYMB_STRUCTCALL = 0x04, /* Return value is a structure. */
LA_SYMB_DLSYM = 0x08, /* Binding due to dlsym call. */
LA_SYMB_ALTVALUE = 0x10 /* Value has been changed by a previous
la_symbind call. */
};
struct dl_phdr_info
{
ElfW(Addr) dlpi_addr;
const char *dlpi_name;
const ElfW(Phdr) *dlpi_phdr;
ElfW(Half) dlpi_phnum;
/* Note: Following members were introduced after the first
version of this structure was available. Check the SIZE
argument passed to the dl_iterate_phdr callback to determine
whether or not each later member is available. */
/* Incremented when a new object may have been added. */
__extension__ unsigned long long int dlpi_adds;
/* Incremented when an object may have been removed. */
__extension__ unsigned long long int dlpi_subs;
/* If there is a PT_TLS segment, its module ID as used in
TLS relocations, else zero. */
size_t dlpi_tls_modid;
/* The address of the calling thread's instance of this module's
PT_TLS segment, if it has one and it has been allocated
in the calling thread, otherwise a null pointer. */
void *dlpi_tls_data;
};
__BEGIN_DECLS
extern int dl_iterate_phdr (int (*__callback) (struct dl_phdr_info *,
size_t, void *),
void *__data);
/* Prototypes for the ld.so auditing interfaces. These are not
defined anywhere in ld.so but instead have to be provided by the
auditing DSO. */
extern unsigned int la_version (unsigned int __version);
extern void la_activity (uintptr_t *__cookie, unsigned int __flag);
extern char *la_objsearch (const char *__name, uintptr_t *__cookie,
unsigned int __flag);
extern unsigned int la_objopen (struct link_map *__map, Lmid_t __lmid,
uintptr_t *__cookie);
extern void la_preinit (uintptr_t *__cookie);
extern uintptr_t la_symbind32 (Elf32_Sym *__sym, unsigned int __ndx,
uintptr_t *__refcook, uintptr_t *__defcook,
unsigned int *__flags, const char *__symname);
extern uintptr_t la_symbind64 (Elf64_Sym *__sym, unsigned int __ndx,
uintptr_t *__refcook, uintptr_t *__defcook,
unsigned int *__flags, const char *__symname);
extern unsigned int la_objclose (uintptr_t *__cookie);
__END_DECLS
#endif
#endif /* link.h */
usr/include/bits/link.h 0000644 00000010275 15252566107 0011065 0 ustar 00 /* Copyright (C) 2004-2018 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
The GNU C Library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with the GNU C Library; if not, see
. */
#ifndef _LINK_H
# error "Never include directly; use instead."
#endif
#ifndef __x86_64__
/* Registers for entry into PLT on IA-32. */
typedef struct La_i86_regs
{
uint32_t lr_edx;
uint32_t lr_ecx;
uint32_t lr_eax;
uint32_t lr_ebp;
uint32_t lr_esp;
} La_i86_regs;
/* Return values for calls from PLT on IA-32. */
typedef struct La_i86_retval
{
uint32_t lrv_eax;
uint32_t lrv_edx;
long double lrv_st0;
long double lrv_st1;
uint64_t lrv_bnd0;
uint64_t lrv_bnd1;
} La_i86_retval;
__BEGIN_DECLS
extern Elf32_Addr la_i86_gnu_pltenter (Elf32_Sym *__sym, unsigned int __ndx,
uintptr_t *__refcook,
uintptr_t *__defcook,
La_i86_regs *__regs,
unsigned int *__flags,
const char *__symname,
long int *__framesizep);
extern unsigned int la_i86_gnu_pltexit (Elf32_Sym *__sym, unsigned int __ndx,
uintptr_t *__refcook,
uintptr_t *__defcook,
const La_i86_regs *__inregs,
La_i86_retval *__outregs,
const char *symname);
__END_DECLS
#else
/* Registers for entry into PLT on x86-64. */
# if __GNUC_PREREQ (4,0)
typedef float La_x86_64_xmm __attribute__ ((__vector_size__ (16)));
typedef float La_x86_64_ymm
__attribute__ ((__vector_size__ (32), __aligned__ (16)));
typedef double La_x86_64_zmm
__attribute__ ((__vector_size__ (64), __aligned__ (16)));
# else
typedef float La_x86_64_xmm __attribute__ ((__mode__ (__V4SF__)));
# endif
typedef union
{
# if __GNUC_PREREQ (4,0)
La_x86_64_ymm ymm[2];
La_x86_64_zmm zmm[1];
# endif
La_x86_64_xmm xmm[4];
} La_x86_64_vector __attribute__ ((__aligned__ (16)));
typedef struct La_x86_64_regs
{
uint64_t lr_rdx;
uint64_t lr_r8;
uint64_t lr_r9;
uint64_t lr_rcx;
uint64_t lr_rsi;
uint64_t lr_rdi;
uint64_t lr_rbp;
uint64_t lr_rsp;
La_x86_64_xmm lr_xmm[8];
La_x86_64_vector lr_vector[8];
#ifndef __ILP32__
__int128_t lr_bnd[4];
#endif
} La_x86_64_regs;
/* Return values for calls from PLT on x86-64. */
typedef struct La_x86_64_retval
{
uint64_t lrv_rax;
uint64_t lrv_rdx;
La_x86_64_xmm lrv_xmm0;
La_x86_64_xmm lrv_xmm1;
long double lrv_st0;
long double lrv_st1;
La_x86_64_vector lrv_vector0;
La_x86_64_vector lrv_vector1;
#ifndef __ILP32__
__int128_t lrv_bnd0;
__int128_t lrv_bnd1;
#endif
} La_x86_64_retval;
#define La_x32_regs La_x86_64_regs
#define La_x32_retval La_x86_64_retval
__BEGIN_DECLS
extern Elf64_Addr la_x86_64_gnu_pltenter (Elf64_Sym *__sym,
unsigned int __ndx,
uintptr_t *__refcook,
uintptr_t *__defcook,
La_x86_64_regs *__regs,
unsigned int *__flags,
const char *__symname,
long int *__framesizep);
extern unsigned int la_x86_64_gnu_pltexit (Elf64_Sym *__sym,
unsigned int __ndx,
uintptr_t *__refcook,
uintptr_t *__defcook,
const La_x86_64_regs *__inregs,
La_x86_64_retval *__outregs,
const char *__symname);
extern Elf32_Addr la_x32_gnu_pltenter (Elf32_Sym *__sym,
unsigned int __ndx,
uintptr_t *__refcook,
uintptr_t *__defcook,
La_x32_regs *__regs,
unsigned int *__flags,
const char *__symname,
long int *__framesizep);
extern unsigned int la_x32_gnu_pltexit (Elf32_Sym *__sym,
unsigned int __ndx,
uintptr_t *__refcook,
uintptr_t *__defcook,
const La_x32_regs *__inregs,
La_x32_retval *__outregs,
const char *__symname);
__END_DECLS
#endif