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-rw-r--r--sysdeps/ia64/dl-fptr.c186
-rw-r--r--sysdeps/ia64/dl-lookupcfg.h23
-rw-r--r--sysdeps/ia64/dl-machine.h585
-rw-r--r--sysdeps/ia64/dl-symaddr.c39
4 files changed, 833 insertions, 0 deletions
diff --git a/sysdeps/ia64/dl-fptr.c b/sysdeps/ia64/dl-fptr.c
new file mode 100644
index 0000000000..0fb9654ab8
--- /dev/null
+++ b/sysdeps/ia64/dl-fptr.c
@@ -0,0 +1,186 @@
+/* Unmap a loaded object. IA-64 version.
+ Copyright (C) 1999, 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. */
+
+#include <unistd.h>
+#include <string.h>
+#include <sys/param.h>
+#include <sys/mman.h>
+#include <link.h>
+#include <ldsodefs.h>
+#include <elf/dynamic-link.h>
+#include <dl-machine.h>
+#ifdef _LIBC_REENTRANT
+# include <pt-machine.h>
+
+static int __ia64_fptr_lock = 0;
+#endif
+
+/* Because ld.so is now versioned, these functions can be in their own
+ file; no relocations need to be done to call them. Of course, if
+ ld.so is not versioned... */
+#if 0
+#ifndef DO_VERSIONING
+# error "This will not work with versioning turned off, sorry."
+#endif
+#endif
+
+#ifdef MAP_ANON
+/* The fd is not examined when using MAP_ANON. */
+#define ANONFD -1
+#else
+extern int _dl_zerofd;
+#define ANONFD _dl_zerofd
+#endif
+
+
+/* ld.so currently has 14 FPTR relocs, we take 256 and use them for
+ the relocs for the dynamic app itself. */
+struct ia64_fptr __boot_ldso_fptr[IA64_BOOT_FPTR_SIZE];
+struct ia64_fptr *__fptr_root = NULL;
+struct ia64_fptr *__fptr_next = __boot_ldso_fptr;
+static struct ia64_fptr *__fptr_free = NULL;
+int __fptr_count = IA64_BOOT_FPTR_SIZE;
+
+Elf64_Addr
+__ia64_make_fptr (const struct link_map *sym_map, Elf64_Addr value,
+ struct ia64_fptr **root, struct ia64_fptr *mem)
+{
+ struct ia64_fptr **loc;
+ struct ia64_fptr *f;
+
+#ifdef _LIBC_REENTRANT
+ /* Make sure we are alone. We don't need a lock during bootstrap. */
+ if (mem == NULL)
+ while (testandset (&__ia64_fptr_lock));
+#endif
+
+ /* Search the sorted linked list for an existing entry for this
+ symbol. */
+ loc = root;
+ f = *loc;
+ while (f != NULL && f->func <= value)
+ {
+ if (f->func == value)
+ goto found;
+ loc = &f->next;
+ f = *loc;
+ }
+
+ /* Not found. Create a new one. */
+ if (mem != NULL)
+ f = mem;
+ else if (__fptr_free != NULL)
+ {
+ f = __fptr_free;
+ __fptr_free = f->next;
+ }
+ else
+ {
+ if (__fptr_count == 0)
+ {
+#ifndef MAP_ANON
+# define MAP_ANON 0
+ if (_dl_zerofd == -1)
+ {
+ _dl_zerofd = _dl_sysdep_open_zero_fill ();
+ if (_dl_zerofd == -1)
+ {
+ __close (fd);
+ _dl_signal_error (errno, NULL,
+ "cannot open zero fill device");
+ }
+ }
+#endif
+
+ __fptr_next = __mmap (0, _dl_pagesize, PROT_READ | PROT_WRITE,
+ MAP_ANON | MAP_PRIVATE, ANONFD, 0);
+ if (__fptr_next == MAP_FAILED)
+ _dl_signal_error(errno, NULL, "cannot map page for fptr");
+ __fptr_count = _dl_pagesize / sizeof (struct ia64_fptr);
+ }
+ f = __fptr_next++;
+ __fptr_count--;
+ }
+
+ f->func = value;
+ /* GOT has already been relocated in elf_get_dynamic_info - don't
+ try to relocate it again. */
+ f->gp = sym_map->l_info[DT_PLTGOT]->d_un.d_ptr;
+ f->next = *loc;
+ *loc = f;
+
+found:
+#ifdef _LIBC_REENTRANT
+ /* Release the lock. */
+ if (mem == NULL)
+ __ia64_fptr_lock = 0;
+#endif
+
+ return (Elf64_Addr) f;
+}
+
+void
+_dl_unmap (struct link_map *map)
+{
+ struct ia64_fptr **floc;
+ struct ia64_fptr *f;
+ struct ia64_fptr **lloc;
+ struct ia64_fptr *l;
+
+ __munmap ((void *) map->l_map_start, map->l_map_end - map->l_map_start);
+
+#ifdef _LIBC_REENTRANT
+ /* Make sure we are alone. */
+ while (testandset (&__ia64_fptr_lock));
+#endif
+
+ /* Search the sorted linked list for the first entry for this object. */
+ floc = &__fptr_root;
+ f = *floc;
+ while (f != NULL && f->func < map->l_map_start)
+ {
+ floc = &f->next;
+ f = *floc;
+ }
+
+ /* We found one. */
+ if (f != NULL && f->func < map->l_map_end)
+ {
+ /* Get the last entry. */
+ lloc = floc;
+ l = f;
+ while (l && l->func < map->l_map_end)
+ {
+ lloc = &l->next;
+ l = *lloc;
+ }
+
+ /* Updated FPTR. */
+ *floc = l;
+
+ /* Prepend them to the free list. */
+ *lloc = __fptr_free;
+ __fptr_free = f;
+ }
+
+#ifdef _LIBC_REENTRANT
+ /* Release the lock. */
+ __ia64_fptr_lock = 0;
+#endif
+}
diff --git a/sysdeps/ia64/dl-lookupcfg.h b/sysdeps/ia64/dl-lookupcfg.h
new file mode 100644
index 0000000000..f954a5cd49
--- /dev/null
+++ b/sysdeps/ia64/dl-lookupcfg.h
@@ -0,0 +1,23 @@
+/* Configuration of lookup functions.
+ Copyright (C) 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. */
+
+/* The ia64 need more information from the symbol lookup function
+ than just the address. */
+#define DL_LOOKUP_RETURNS_MAP
+#define ELF_FUNCTION_PTR_IS_SPECIAL
diff --git a/sysdeps/ia64/dl-machine.h b/sysdeps/ia64/dl-machine.h
new file mode 100644
index 0000000000..7fba08dabe
--- /dev/null
+++ b/sysdeps/ia64/dl-machine.h
@@ -0,0 +1,585 @@
+/* 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 */
diff --git a/sysdeps/ia64/dl-symaddr.c b/sysdeps/ia64/dl-symaddr.c
new file mode 100644
index 0000000000..bc3301c707
--- /dev/null
+++ b/sysdeps/ia64/dl-symaddr.c
@@ -0,0 +1,39 @@
+/* Get the symbol address. IA-64 version.
+ Copyright (C) 1999, 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. */
+
+#include <ldsodefs.h>
+#include <dl-machine.h>
+
+void *
+_dl_symbol_address (const struct link_map *map, const ElfW(Sym) *ref)
+{
+ Elf64_Addr value = (map ? map->l_addr : 0) + ref->st_value;
+
+ /* On ia64, we have to return the pointer to function descriptor. */
+ if (ELFW(ST_TYPE) (ref->st_info) == STT_FUNC)
+ return (void *) __ia64_make_fptr (map, value, &__fptr_root, NULL);
+ else
+ return (void *) value;
+}
+
+ElfW(Addr)
+_dl_start_address (const struct link_map *map, ElfW(Addr) start)
+{
+ return __ia64_make_fptr (map, start, &__fptr_root, NULL);
+}