mirror of
https://sourceware.org/git/glibc.git
synced 2024-11-17 10:30:20 +00:00
c0282c0642
2000-05-05 Ulrich Drepper <drepper@redhat.com> * elf/dl-load.c (_dl_map_object_from_fd): Little of computation of parameter to mprotect and for variable assignments. 2000-05-03 Jes Sorensen <jes@linuxcare.com> * sysdeps/generic/ldsodefs.h (LOOKUP_VALUE_ADDRESS): Check the validity of map before dereferencing it. * elf/dl-reloc.c (RESOLVE_MAP): Define. 2000-05-02 Jes Sorensen <jes@linuxcare.com> * elf/dl-runtime.c (fixup): Add the value returned in the symbol lookup to the arguments to elf_machine_fixup_plt(). * sysdeps/ia64/dl-machine.h (elf_machine_fixup_plt): Add Link_map of the symbol being resolved to input argument list and make the function return the pointer to the reloc. * sysdeps/alpha/dl-machine.h (elf_machine_fixup_plt): Change return valuie to lookup_t and return the value. * sysdeps/arm/dl-machine.h (elf_machine_fixup_plt): Likewise. * sysdeps/generic/dl-machine.h (elf_machine_fixup_plt): Likewise. * sysdeps/i386/dl-machine.h (elf_machine_fixup_plt): Likewise. * sysdeps/m68k/dl-machine.h (elf_machine_fixup_plt): Likewise. * sysdeps/sparc/sparc32/dl-machine.h (elf_machine_fixup_plt): Likewise. * sysdeps/sparc/sparc64/dl-machine.h (elf_machine_fixup_plt): Likewise. * sysdeps/powerpc/dl-machine.h (elf_machine_fixup_plt): Likewise. Make it an inline function returning value after calling __elf_machine_fixup_plt(). * elf/dl-sym.c (_dl_vsym): Use DL_SYMBOL_ADDRESS() to obtain the symbol address. * elf/dl-symbol.c (_dl_symbol_value): Use LOOKUP_VALUE_ADDRESS to obtain the symbol address. * sysdeps/generic/ldsodefs.h: Add generic DL_SYMBOL_ADDRESS() macro depending on the definition of ELF_FUNCTION_PTR_IS_SPECIAL. * sysdeps/ia64/dl-machine.h: Add DL_SYMBOL_ADDRESS() macro calling _dl_symbol_address() - this way DL_SYMBOL_ADDRESS() turns into an inline on non ia64. 2000-04-28 Jes Sorensen <jes@linuxcare.com> * elf/dl-runtime.c (fixup): Use the portable macros to get the symbol address of an object. * elf/dl-runtime.c (fixup-profile): Use the portable macros to get the symbol address of an object. * elf/dl-libc.c (struct do_dlsym_args): Change loadbase to a lookup_t. * elf/dl-lookup.c (_dl_lookup_symbol): Likewise. (_dl_lookup_symbol_skip): Likewise. (_dl_lookup_versioned_symbol): Likewise. (_dl_lookup_versioned_symbol_skip): Likewise. 2000-04-27 Jes Sorensen <jes@linuxcare.com> * elf/rtld.c (_dl_start): Get the function pointer return address via _dl_start_address for architectures that need a function pointer descriptor rather than just a pointer (ia64). * sysdeps/generic/dl-lookupcfg.h: New file. * sysdeps/ia64/dl-lookupcfg.h: New file. * sysdeps/ia64/dl-machine.h: New file. * sysdeps/ia64/dl-symaddr.c: New file. * sysdeps/ia64/dl-fptr.c: New file. * elf/elf.h: Add IA-64 specific definitions.
586 lines
15 KiB
C
586 lines
15 KiB
C
/* Machine-dependent ELF dynamic relocation inline functions. IA-64 version.
|
|
Copyright (C) 1995, 1996, 1997, 2000 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 Library General Public License as
|
|
published by the Free Software Foundation; either version 2 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
|
|
Library General Public License for more details.
|
|
|
|
You should have received a copy of the GNU Library General Public
|
|
License along with the GNU C Library; see the file COPYING.LIB. If
|
|
not, write to the Free Software Foundation, Inc.,
|
|
59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
|
|
|
|
#ifndef dl_machine_h
|
|
#define dl_machine_h 1
|
|
|
|
#define ELF_MACHINE_NAME "ia64"
|
|
|
|
#include <assert.h>
|
|
#include <string.h>
|
|
#include <link.h>
|
|
#include <errno.h>
|
|
|
|
|
|
/* Translate a processor specific dynamic tag to the index
|
|
in l_info array. */
|
|
#define DT_IA_64(x) (DT_IA_64_##x - DT_LOPROC + DT_NUM)
|
|
|
|
|
|
/* An FPTR is a function descriptor. Properly they consist of just
|
|
FUNC and GP. But we want to traverse a binary tree too. */
|
|
|
|
#define IA64_BOOT_FPTR_SIZE 256
|
|
|
|
struct ia64_fptr
|
|
{
|
|
Elf64_Addr func;
|
|
Elf64_Addr gp;
|
|
struct ia64_fptr *next;
|
|
};
|
|
|
|
extern struct ia64_fptr __boot_ldso_fptr[];
|
|
extern struct ia64_fptr *__fptr_next;
|
|
extern struct ia64_fptr *__fptr_root;
|
|
extern int __fptr_count;
|
|
|
|
extern Elf64_Addr __ia64_make_fptr (const struct link_map *, Elf64_Addr,
|
|
struct ia64_fptr **, struct ia64_fptr *);
|
|
|
|
/* Return nonzero iff E_MACHINE is compatible with the running host. */
|
|
static inline int
|
|
elf_machine_matches_host (Elf64_Word e_machine)
|
|
{
|
|
return e_machine == EM_IA_64;
|
|
}
|
|
|
|
void * _dl_symbol_address (const struct link_map *map, const ElfW(Sym) *ref);
|
|
|
|
#define DL_SYMBOL_ADDRESS(map, ref) _dl_symbol_address(map, ref)
|
|
|
|
|
|
/* Return the link-time address of _DYNAMIC. */
|
|
static inline Elf64_Addr
|
|
elf_machine_dynamic (void)
|
|
{
|
|
Elf64_Addr *p;
|
|
|
|
__asm__(
|
|
".section .sdata\n"
|
|
" .type __dynamic_ltv#, @object\n"
|
|
" .size __dynamic_ltv#, 8\n"
|
|
"__dynamic_ltv:\n"
|
|
" data8 @ltv(_DYNAMIC#)\n"
|
|
".previous\n"
|
|
" addl %0 = @gprel(__dynamic_ltv#), gp ;;"
|
|
: "=r"(p));
|
|
|
|
return *p;
|
|
}
|
|
|
|
|
|
/* Return the run-time load address of the shared object. */
|
|
static inline Elf64_Addr
|
|
elf_machine_load_address (void)
|
|
{
|
|
Elf64_Addr ip;
|
|
int *p;
|
|
|
|
__asm__(
|
|
"1: mov %0 = ip\n"
|
|
".section .sdata\n"
|
|
"2: data4 @ltv(1b)\n"
|
|
" .align 8\n"
|
|
".previous\n"
|
|
" addl %1 = @gprel(2b), gp ;;"
|
|
: "=r"(ip), "=r"(p));
|
|
|
|
return ip - (Elf64_Addr)*p;
|
|
}
|
|
|
|
|
|
/* Set up the loaded object described by L so its unrelocated PLT
|
|
entries will jump to the on-demand fixup code in dl-runtime.c. */
|
|
|
|
static inline int
|
|
elf_machine_runtime_setup (struct link_map *l, int lazy, int profile)
|
|
{
|
|
extern void _dl_runtime_resolve (void);
|
|
extern void _dl_runtime_profile (void);
|
|
|
|
if (lazy)
|
|
{
|
|
register Elf64_Addr gp __asm__("gp");
|
|
Elf64_Addr *reserve, doit;
|
|
|
|
/*
|
|
* Careful with the typecast here or it will try to add l-l_addr
|
|
* pointer elements
|
|
*/
|
|
reserve = (Elf64_Addr *)
|
|
(l->l_info[DT_IA_64(PLT_RESERVE)]->d_un.d_ptr + l->l_addr);
|
|
/* Identify this shared object. */
|
|
reserve[0] = (Elf64_Addr) l;
|
|
|
|
/* This function will be called to perform the relocation. */
|
|
if (!profile)
|
|
doit = (Elf64_Addr) ((struct ia64_fptr *)&_dl_runtime_resolve)->func;
|
|
else
|
|
{
|
|
if (_dl_name_match_p (_dl_profile, l))
|
|
{
|
|
/* This is the object we are looking for. Say that we really
|
|
want profiling and the timers are started. */
|
|
_dl_profile_map = l;
|
|
}
|
|
doit = (Elf64_Addr) ((struct ia64_fptr *)&_dl_runtime_profile)->func;
|
|
}
|
|
|
|
reserve[1] = doit;
|
|
reserve[2] = gp;
|
|
}
|
|
|
|
return lazy;
|
|
}
|
|
|
|
|
|
/*
|
|
This code is used in dl-runtime.c to call the `fixup' function
|
|
and then redirect to the address it returns. `fixup()' takes two
|
|
arguments, however fixup_profile() takes three.
|
|
|
|
The ABI specifies that we will never see more than 8 input
|
|
registers to a function call, thus it is safe to simply allocate
|
|
those, and simpler than playing stack games.
|
|
- 12/09/99 Jes
|
|
*/
|
|
#define TRAMPOLINE_TEMPLATE(tramp_name, fixup_name) \
|
|
extern void tramp_name (void); \
|
|
asm ( "\
|
|
.global " #tramp_name "#
|
|
.proc " #tramp_name "#
|
|
" #tramp_name ":
|
|
{ .mmi
|
|
alloc loc0 = ar.pfs, 8, 2, 3, 0
|
|
adds r2 = -144, r12
|
|
adds r3 = -128, r12
|
|
}
|
|
{ .mii
|
|
adds r12 = -160, r12
|
|
mov loc1 = b0
|
|
mov out2 = b0 /* needed by fixup_profile */
|
|
;;
|
|
}
|
|
{ .mmi
|
|
stf.spill [r2] = f8, 32
|
|
stf.spill [r3] = f9, 32
|
|
mov out0 = r16
|
|
;;
|
|
}
|
|
{ .mmi
|
|
stf.spill [r2] = f10, 32
|
|
stf.spill [r3] = f11, 32
|
|
shl out1 = r15, 4
|
|
;;
|
|
}
|
|
{ .mmi
|
|
stf.spill [r2] = f12, 32
|
|
stf.spill [r3] = f13, 32
|
|
shladd out1 = r15, 3, out1
|
|
;;
|
|
}
|
|
{ .mmb
|
|
stf.spill [r2] = f14
|
|
stf.spill [r3] = f15
|
|
br.call.sptk.many b0 = " #fixup_name "#
|
|
}
|
|
{ .mii
|
|
ld8 r9 = [ret0], 8
|
|
adds r2 = 16, r12
|
|
adds r3 = 32, r12
|
|
;;
|
|
}
|
|
{ .mmi
|
|
ldf.fill f8 = [r2], 32
|
|
ldf.fill f9 = [r3], 32
|
|
mov b0 = loc1
|
|
;;
|
|
}
|
|
{ .mmi
|
|
ldf.fill f10 = [r2], 32
|
|
ldf.fill f11 = [r3], 32
|
|
mov b6 = r9
|
|
;;
|
|
}
|
|
{ .mmi
|
|
ldf.fill f12 = [r2], 32
|
|
ldf.fill f13 = [r3], 32
|
|
mov ar.pfs = loc0
|
|
;;
|
|
}
|
|
{ .mmi
|
|
ldf.fill f14 = [r2], 32
|
|
ldf.fill f15 = [r3], 32
|
|
adds r12 = 160, r12
|
|
;;
|
|
}
|
|
/* An alloc is needed for the break system call to work.
|
|
We don't care about the old value of the pfs register. */
|
|
{ .mmb
|
|
alloc r2 = ar.pfs, 0, 0, 8, 0
|
|
ld8 gp = [ret0]
|
|
br.sptk.many b6
|
|
;;
|
|
}
|
|
.endp " #tramp_name "#")
|
|
|
|
#ifndef PROF
|
|
#define ELF_MACHINE_RUNTIME_TRAMPOLINE \
|
|
TRAMPOLINE_TEMPLATE (_dl_runtime_resolve, fixup); \
|
|
TRAMPOLINE_TEMPLATE (_dl_runtime_profile, profile_fixup);
|
|
#else
|
|
#define ELF_MACHINE_RUNTIME_TRAMPOLINE \
|
|
TRAMPOLINE_TEMPLATE (_dl_runtime_resolve, fixup); \
|
|
strong_alias (_dl_runtime_resolve, _dl_runtime_profile);
|
|
#endif
|
|
|
|
|
|
/* Initial entry point code for the dynamic linker.
|
|
The C function `_dl_start' is the real entry point;
|
|
its return value is the user program's entry point. */
|
|
|
|
#define RTLD_START asm ("\
|
|
.text
|
|
.global _start#
|
|
.proc _start#
|
|
_start:
|
|
0: { .mii
|
|
alloc loc0 = ar.pfs, 0, 3, 4, 0
|
|
mov r2 = ip
|
|
addl r3 = @gprel(0b), r0
|
|
;;
|
|
}
|
|
{ .mlx
|
|
/* Calculate the GP, and save a copy in loc1. */
|
|
sub gp = r2, r3
|
|
movl r8 = 0x9804c0270033f
|
|
;;
|
|
}
|
|
{ .mii
|
|
mov ar.fpsr = r8
|
|
sub loc1 = r2, r3
|
|
/* _dl_start wants a pointer to the pointer to the arg block
|
|
and the arg block starts with an integer, thus the magic 16. */
|
|
adds out0 = 16, sp
|
|
}
|
|
{ .bbb
|
|
br.call.sptk.many b0 = _dl_start#
|
|
;;
|
|
}
|
|
.endp _start#
|
|
/* FALLTHRU */
|
|
.global _dl_start_user#
|
|
.proc _dl_start_user#
|
|
_dl_start_user:
|
|
{ .mii
|
|
/* Save the pointer to the user entry point fptr in loc2. */
|
|
mov loc2 = ret0
|
|
/* Store the highest stack address. */
|
|
addl r2 = @ltoff(__libc_stack_end#), gp
|
|
addl r3 = @gprel(_dl_skip_args), gp
|
|
;;
|
|
}
|
|
{ .mmi
|
|
ld8 r2 = [r2]
|
|
ld4 r3 = [r3]
|
|
adds r11 = 24, sp /* Load the address of argv. */
|
|
;;
|
|
}
|
|
{ .mii
|
|
st8 [r2] = sp
|
|
adds r10 = 16, sp /* Load the address of argc. */
|
|
mov out2 = r11
|
|
;;
|
|
/* See if we were run as a command with the executable file
|
|
name as an extra leading argument. If so, adjust the argv
|
|
pointer to skip _dl_skip_args words.
|
|
Note that _dl_skip_args is an integer, not a long - Jes
|
|
|
|
The stack pointer has to be 16 byte aligned. We cannot simply
|
|
addjust the stack pointer. We have to move the whole argv and
|
|
envp. H.J. */
|
|
}
|
|
{ .mmi
|
|
ld8 out1 = [r10] /* is argc actually stored as a long
|
|
or as an int? */
|
|
;;
|
|
sub out1 = out1, r3 /* Get the new argc. */
|
|
shladd r15 = r3, 3, r11 /* The address of the argv we move */
|
|
;;
|
|
}
|
|
/* ??? Could probably merge these two loops into 3 bundles.
|
|
using predication to control which set of copies we're on. */
|
|
1: /* Copy argv. */
|
|
{ .mfi
|
|
ld8 r16 = [r15], 8 /* Load the value in the old argv. */
|
|
;;
|
|
}
|
|
{ .mib
|
|
st8 [r11] = r16, 8 /* Store it in the new argv. */
|
|
cmp.ne p6, p7 = 0, r16
|
|
(p6) br.cond.dptk.few 1b
|
|
;;
|
|
}
|
|
{ .mib
|
|
mov out3 = r11
|
|
addl out0 = @ltoff(_dl_loaded), gp
|
|
}
|
|
1: /* Copy env. */
|
|
{ .mfi
|
|
ld8 r16 = [r15], 8 /* Load the value in the old env. */
|
|
;;
|
|
}
|
|
{ .mib
|
|
st8 [r11] = r16, 8 /* Store it in the new env. */
|
|
cmp.ne p6, p7 = 0, r16
|
|
(p6) br.cond.dptk.few 1b
|
|
;;
|
|
}
|
|
{ .mmb
|
|
st8 [r10] = out1 /* Record the new argc. */
|
|
ld8 out0 = [out0]
|
|
}
|
|
{ .mfb
|
|
ld8 out0 = [out0] /* get the linkmap */
|
|
br.call.sptk.many b0 = _dl_init#
|
|
;;
|
|
}
|
|
/* Pass our finializer function to the user,
|
|
and jump to the user's entry point. */
|
|
{ .mmi
|
|
ld8 r3 = [loc2], 8
|
|
mov b0 = r0
|
|
}
|
|
{ .mmi
|
|
addl ret0 = @ltoff(@fptr(_dl_fini#)), gp
|
|
;;
|
|
mov b6 = r3
|
|
}
|
|
{ .mmi
|
|
ld8 ret0 = [ret0]
|
|
ld8 gp = [loc2]
|
|
mov ar.pfs = loc0
|
|
;;
|
|
}
|
|
{ .mfb
|
|
br.sptk.many b6
|
|
;;
|
|
}
|
|
.endp _dl_start_user#
|
|
.previous");
|
|
|
|
|
|
#ifndef RTLD_START_SPECIAL_INIT
|
|
#define RTLD_START_SPECIAL_INIT /* nothing */
|
|
#endif
|
|
|
|
/* Nonzero iff TYPE describes relocation of a PLT entry, so
|
|
PLT entries should not be allowed to define the value. */
|
|
/* ??? Ignore IPLTMSB for now. */
|
|
#define elf_machine_lookup_noplt_p(type) ((type) == R_IA64_IPLTLSB)
|
|
|
|
/* Nonzero iff TYPE should not be allowed to resolve to one of
|
|
the main executable's symbols, as for a COPY reloc, which we don't use. */
|
|
#define elf_machine_lookup_noexec_p(type) (0)
|
|
|
|
/* A reloc type used for ld.so cmdline arg lookups to reject PLT entries. */
|
|
#define ELF_MACHINE_JMP_SLOT R_IA64_IPLTLSB
|
|
|
|
/* According to the IA-64 specific documentation, Rela is always used. */
|
|
#define ELF_MACHINE_NO_REL 1
|
|
|
|
/* Since ia64's stack has to be 16byte aligned, we cannot arbitrarily
|
|
move the stack pointer. */
|
|
#define ELF_MACHINE_FIXED_STACK 1
|
|
|
|
/* Return the address of the entry point. */
|
|
extern ElfW(Addr) _dl_start_address (const struct link_map *map,
|
|
ElfW(Addr) start);
|
|
|
|
#define ELF_MACHINE_START_ADDRESS(map, start) \
|
|
_dl_start_address ((map), (start))
|
|
|
|
#define elf_machine_profile_fixup_plt(l, reloc, rel_addr, value) \
|
|
elf_machine_fixup_plt ((l), (reloc), (rel_addr), (value))
|
|
|
|
#define elf_machine_profile_plt(reloc_addr) ((Elf64_Addr) (reloc_addr))
|
|
|
|
/* Fixup a PLT entry to bounce directly to the function at VALUE. */
|
|
static inline Elf64_Addr
|
|
elf_machine_fixup_plt (struct link_map *l, lookup_t t,
|
|
const Elf64_Rela *reloc,
|
|
Elf64_Addr *reloc_addr, Elf64_Addr value)
|
|
{
|
|
/* l is the link_map for the caller, t is the link_map for the object
|
|
* being called */
|
|
/* got has already been relocated in elf_get_dynamic_info() */
|
|
reloc_addr[1] = t->l_info[DT_PLTGOT]->d_un.d_ptr;
|
|
reloc_addr[0] = value;
|
|
return (Elf64_Addr) reloc_addr;
|
|
}
|
|
|
|
/* Return the final value of a plt relocation. */
|
|
static inline Elf64_Addr
|
|
elf_machine_plt_value (struct link_map *map, const Elf64_Rela *reloc,
|
|
Elf64_Addr value)
|
|
{
|
|
/* No need to handle rel vs rela since IA64 is rela only */
|
|
return value + reloc->r_addend;
|
|
}
|
|
|
|
#endif /* !dl_machine_h */
|
|
|
|
#ifdef RESOLVE_MAP
|
|
|
|
#define R_IA64_TYPE(R) ((R) & -8)
|
|
#define R_IA64_FORMAT(R) ((R) & 7)
|
|
|
|
#define R_IA64_FORMAT_32MSB 4
|
|
#define R_IA64_FORMAT_32LSB 5
|
|
#define R_IA64_FORMAT_64MSB 6
|
|
#define R_IA64_FORMAT_64LSB 7
|
|
|
|
|
|
/* Perform the relocation specified by RELOC and SYM (which is fully
|
|
resolved). MAP is the object containing the reloc. */
|
|
static inline void
|
|
elf_machine_rela (struct link_map *map,
|
|
const Elf64_Rela *reloc,
|
|
const Elf64_Sym *sym,
|
|
const struct r_found_version *version,
|
|
Elf64_Addr *const reloc_addr)
|
|
{
|
|
unsigned long const r_type = ELF64_R_TYPE (reloc->r_info);
|
|
Elf64_Addr value;
|
|
|
|
#ifndef RTLD_BOOTSTRAP
|
|
/* This is defined in rtld.c, but nowhere in the static libc.a; make the
|
|
reference weak so static programs can still link. This declaration
|
|
cannot be done when compiling rtld.c (i.e. #ifdef RTLD_BOOTSTRAP)
|
|
because rtld.c contains the common defn for _dl_rtld_map, which is
|
|
incompatible with a weak decl in the same file. */
|
|
weak_extern (_dl_rtld_map);
|
|
#endif
|
|
|
|
/* We cannot use a switch here because we cannot locate the switch
|
|
jump table until we've self-relocated. */
|
|
|
|
if (R_IA64_TYPE (r_type) == R_IA64_TYPE (R_IA64_REL64LSB))
|
|
{
|
|
value = *reloc_addr;
|
|
#ifndef RTLD_BOOTSTRAP
|
|
/* Already done in dynamic linker. */
|
|
if (map != &_dl_rtld_map)
|
|
#endif
|
|
value += map->l_addr;
|
|
}
|
|
else if (r_type == R_IA64_NONE)
|
|
return;
|
|
else
|
|
{
|
|
struct link_map *sym_map;
|
|
|
|
/*
|
|
* RESOLVE_MAP() will return NULL if it fail to locate the symbol
|
|
*/
|
|
if ((sym_map = RESOLVE_MAP (&sym, version, r_type)))
|
|
{
|
|
value = sym ? sym_map->l_addr + sym->st_value : 0;
|
|
value += reloc->r_addend;
|
|
|
|
if (R_IA64_TYPE (r_type) == R_IA64_TYPE (R_IA64_DIR64LSB))
|
|
;/* No adjustment. */
|
|
else if (r_type == R_IA64_IPLTLSB)
|
|
{
|
|
elf_machine_fixup_plt (NULL, sym_map, reloc, reloc_addr, value);
|
|
return;
|
|
}
|
|
else if (R_IA64_TYPE (r_type) == R_IA64_TYPE (R_IA64_FPTR64LSB))
|
|
#ifndef RTLD_BOOTSTRAP
|
|
value = __ia64_make_fptr (sym_map, value, &__fptr_root, NULL);
|
|
#else
|
|
{
|
|
struct ia64_fptr *p_boot_ldso_fptr;
|
|
struct ia64_fptr **p_fptr_root;
|
|
int *p_fptr_count;
|
|
|
|
/* Special care must be taken to address these variables
|
|
during bootstrap. Further, since we don't know exactly
|
|
when __fptr_next will be relocated, we index directly
|
|
off __boot_ldso_fptr. */
|
|
asm ("addl %0 = @gprel(__boot_ldso_fptr#), gp\n\t"
|
|
"addl %1 = @gprel(__fptr_root#), gp\n\t"
|
|
"addl %2 = @gprel(__fptr_count#), gp"
|
|
: "=r"(p_boot_ldso_fptr),
|
|
"=r"(p_fptr_root),
|
|
"=r"(p_fptr_count));
|
|
|
|
/*
|
|
* Go from the top - __ia64_make_fptr goes from the bottom,
|
|
* this way we will never clash.
|
|
*/
|
|
value = __ia64_make_fptr (sym_map, value, p_fptr_root,
|
|
&p_boot_ldso_fptr[--*p_fptr_count]);
|
|
}
|
|
#endif
|
|
else if (R_IA64_TYPE (r_type) == R_IA64_TYPE (R_IA64_PCREL64LSB))
|
|
value -= (Elf64_Addr)reloc_addr & -16;
|
|
else
|
|
assert (! "unexpected dynamic reloc type");
|
|
}
|
|
else
|
|
value = 0;
|
|
}
|
|
|
|
/* ??? Ignore MSB and Instruction format for now. */
|
|
if (R_IA64_FORMAT (r_type) == R_IA64_FORMAT_64LSB)
|
|
*reloc_addr = value;
|
|
else if (R_IA64_FORMAT (r_type) == R_IA64_FORMAT_32LSB)
|
|
*(int *)reloc_addr = value;
|
|
else if (r_type == R_IA64_IPLTLSB)
|
|
{
|
|
reloc_addr[0] = 0;
|
|
reloc_addr[1] = 0;
|
|
}
|
|
else
|
|
assert (! "unexpected dynamic reloc format");
|
|
}
|
|
|
|
|
|
/* Perform a RELATIVE reloc on the .got entry that transfers to the .plt. */
|
|
static inline void
|
|
elf_machine_lazy_rel (struct link_map *map,
|
|
Elf64_Addr l_addr, const Elf64_Rela *reloc)
|
|
{
|
|
Elf64_Addr * const reloc_addr = (void *)(l_addr + reloc->r_offset);
|
|
unsigned long const r_type = ELF64_R_TYPE (reloc->r_info);
|
|
|
|
if (r_type == R_IA64_IPLTLSB)
|
|
{
|
|
reloc_addr[0] += l_addr;
|
|
reloc_addr[1] += l_addr;
|
|
}
|
|
else if (r_type == R_IA64_NONE)
|
|
return;
|
|
else
|
|
assert (! "unexpected PLT reloc type");
|
|
}
|
|
|
|
#endif /* RESOLVE_MAP */
|