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grub2/0274-Fix-ia64-efi-image-generation-on-big-endian-machines.patch
Peter Jones a5bd9f682f Rebase to newer upstream (git snapshot)
2013-05-02 16:54:52 -04:00

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From e5668a21f2e71785573ab072471c9254fa6e73b0 Mon Sep 17 00:00:00 2001
From: Vladimir 'phcoder' Serbinenko <phcoder@gmail.com>
Date: Tue, 9 Apr 2013 19:19:19 +0200
Subject: [PATCH 274/364] Fix ia64-efi image generation on big-endian
machines. Deduplicate some code while on it. Reported by: Leif Lindholm.
---
ChangeLog | 6 ++
grub-core/kern/ia64/dl.c | 135 ++----------------------------
grub-core/kern/ia64/dl_helper.c | 159 +++++++++++++++++++++++++++++++++--
include/grub/ia64/reloc.h | 42 ++++++++++
util/grub-mkimage.c | 9 +-
util/grub-mkimagexx.c | 178 +++++++---------------------------------
6 files changed, 243 insertions(+), 286 deletions(-)
create mode 100644 include/grub/ia64/reloc.h
diff --git a/ChangeLog b/ChangeLog
index 083d86a..e45ca35 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,9 @@
+2013-04-08 Vladimir Serbinenko <phcoder@gmail.com>
+
+ Fix ia64-efi image generation on big-endian machines. Deduplicate
+ some code while on it.
+ Reported by: Leif Lindholm.
+
2013-04-08 Andrey Borzenkov <arvidjaar@gmail.com>
* grub-core/Makefile.core.def: Add kern/elfXX.c to elf module
diff --git a/grub-core/kern/ia64/dl.c b/grub-core/kern/ia64/dl.c
index 7c22b0b..957ceaa 100644
--- a/grub-core/kern/ia64/dl.c
+++ b/grub-core/kern/ia64/dl.c
@@ -23,6 +23,9 @@
#include <grub/err.h>
#include <grub/mm.h>
#include <grub/i18n.h>
+#include <grub/ia64/reloc.h>
+
+#define MASK19 ((1 << 19) - 1)
/* Check if EHDR is a valid ELF header. */
grub_err_t
@@ -41,126 +44,6 @@ grub_arch_dl_check_header (void *ehdr)
#pragma GCC diagnostic ignored "-Wcast-align"
-#define MASK20 ((1 << 20) - 1)
-#define MASK19 ((1 << 19) - 1)
-
-struct unaligned_uint32
-{
- grub_uint32_t val;
-} __attribute__ ((packed));
-
-static void
-add_value_to_slot_20b (grub_addr_t addr, grub_uint32_t value)
-{
- struct unaligned_uint32 *p;
- switch (addr & 3)
- {
- case 0:
- p = (struct unaligned_uint32 *) ((addr & ~3ULL) + 2);
- p->val = ((((((p->val >> 2) & MASK20) + value) & MASK20) << 2)
- | (p->val & ~(MASK20 << 2)));
- break;
- case 1:
- p = (struct unaligned_uint32 *) ((grub_uint8_t *) (addr & ~3ULL) + 7);
- p->val = ((((((p->val >> 3) & MASK20) + value) & MASK20) << 3)
- | (p->val & ~(MASK20 << 3)));
- break;
- case 2:
- p = (struct unaligned_uint32 *) ((grub_uint8_t *) (addr & ~3ULL) + 12);
- p->val = ((((((p->val >> 4) & MASK20) + value) & MASK20) << 4)
- | (p->val & ~(MASK20 << 4)));
- break;
- }
-}
-
-#define MASKF21 ( ((1 << 23) - 1) & ~((1 << 7) | (1 << 8)) )
-
-static grub_uint32_t
-add_value_to_slot_21_real (grub_uint32_t a, grub_uint32_t value)
-{
- grub_uint32_t high, mid, low, c;
- low = (a & 0x00007f);
- mid = (a & 0x7fc000) >> 7;
- high = (a & 0x003e00) << 7;
- c = (low | mid | high) + value;
- return (c & 0x7f) | ((c << 7) & 0x7fc000) | ((c >> 7) & 0x0003e00); //0x003e00
-}
-
-static void
-add_value_to_slot_21 (grub_addr_t addr, grub_uint32_t value)
-{
- struct unaligned_uint32 *p;
- switch (addr & 3)
- {
- case 0:
- p = (struct unaligned_uint32 *) ((addr & ~3ULL) + 2);
- p->val = ((add_value_to_slot_21_real (((p->val >> 2) & MASKF21), value) & MASKF21) << 2) | (p->val & ~(MASKF21 << 2));
- break;
- case 1:
- p = (struct unaligned_uint32 *) ((grub_uint8_t *) (addr & ~3ULL) + 7);
- p->val = ((add_value_to_slot_21_real (((p->val >> 3) & MASKF21), value) & MASKF21) << 3) | (p->val & ~(MASKF21 << 3));
- break;
- case 2:
- p = (struct unaligned_uint32 *) ((grub_uint8_t *) (addr & ~3ULL) + 12);
- p->val = ((add_value_to_slot_21_real (((p->val >> 4) & MASKF21), value) & MASKF21) << 4) | (p->val & ~(MASKF21 << 4));
- break;
- }
-}
-
-static const grub_uint8_t nopm[5] =
- {
- /* [MLX] nop.m 0x0 */
- 0x05, 0x00, 0x00, 0x00, 0x01
- };
-
-static const grub_uint8_t jump[0x20] =
- {
- /* ld8 r16=[r15],8 */
- 0x02, 0x80, 0x20, 0x1e, 0x18, 0x14,
- /* mov r14=r1;; */
- 0xe0, 0x00, 0x04, 0x00, 0x42, 0x00,
- /* nop.i 0x0 */
- 0x00, 0x00, 0x04, 0x00,
- /* ld8 r1=[r15] */
- 0x11, 0x08, 0x00, 0x1e, 0x18, 0x10,
- /* mov b6=r16 */
- 0x60, 0x80, 0x04, 0x80, 0x03, 0x00,
- /* br.few b6;; */
- 0x60, 0x00, 0x80, 0x00
- };
-
-struct ia64_trampoline
-{
- /* nop.m */
- grub_uint8_t nop[5];
- /* movl r15 = addr*/
- grub_uint8_t addr_hi[6];
- grub_uint8_t e0;
- grub_uint8_t addr_lo[4];
- grub_uint8_t jump[0x20];
-};
-
-static void
-make_trampoline (struct ia64_trampoline *tr, grub_uint64_t addr)
-{
- COMPILE_TIME_ASSERT (sizeof (struct ia64_trampoline)
- == GRUB_IA64_DL_TRAMP_SIZE);
- grub_memcpy (tr->nop, nopm, sizeof (tr->nop));
- tr->addr_hi[0] = ((addr & 0xc00000) >> 16);
- tr->addr_hi[1] = (addr >> 24) & 0xff;
- tr->addr_hi[2] = (addr >> 32) & 0xff;
- tr->addr_hi[3] = (addr >> 40) & 0xff;
- tr->addr_hi[4] = (addr >> 48) & 0xff;
- tr->addr_hi[5] = (addr >> 56) & 0xff;
- tr->e0 = 0xe0;
- tr->addr_lo[0] = ((addr & 0x000f) << 4) | 0x01;
- tr->addr_lo[1] = (((addr & 0x0070) >> 4) | ((addr & 0x070000) >> 11)
- | ((addr & 0x200000) >> 17));
- tr->addr_lo[2] = ((addr & 0x1f80) >> 5) | ((addr & 0x180000) >> 19);
- tr->addr_lo[3] = ((addr & 0xe000) >> 13) | 0x60;
- grub_memcpy (tr->jump, jump, sizeof (tr->jump));
-}
-
/* Relocate symbols. */
grub_err_t
grub_arch_dl_relocate_symbols (grub_dl_t mod, void *ehdr)
@@ -170,7 +53,7 @@ grub_arch_dl_relocate_symbols (grub_dl_t mod, void *ehdr)
Elf_Word entsize;
unsigned i;
grub_uint64_t *gp, *gpptr;
- struct ia64_trampoline *tr;
+ struct grub_ia64_trampoline *tr;
gp = (grub_uint64_t *) mod->base;
gpptr = (grub_uint64_t *) mod->got;
@@ -230,13 +113,13 @@ grub_arch_dl_relocate_symbols (grub_dl_t mod, void *ehdr)
case R_IA64_PCREL21B:
{
grub_uint64_t noff;
- make_trampoline (tr, value);
+ grub_ia64_make_trampoline (tr, value);
noff = ((char *) tr - (char *) (addr & ~3)) >> 4;
- tr++;
+ tr = (struct grub_ia64_trampoline *) ((char *) tr + GRUB_IA64_DL_TRAMP_SIZE);
if (noff & ~MASK19)
return grub_error (GRUB_ERR_BAD_OS,
"trampoline offset too big (%lx)", noff);
- add_value_to_slot_20b (addr, noff);
+ grub_ia64_add_value_to_slot_20b (addr, noff);
}
break;
case R_IA64_SEGREL64LSB:
@@ -250,7 +133,7 @@ grub_arch_dl_relocate_symbols (grub_dl_t mod, void *ehdr)
*(grub_uint64_t *) addr += value - addr;
break;
case R_IA64_GPREL22:
- add_value_to_slot_21 (addr, value - (grub_addr_t) gp);
+ grub_ia64_add_value_to_slot_21 (addr, value - (grub_addr_t) gp);
break;
case R_IA64_LTOFF22X:
@@ -259,7 +142,7 @@ grub_arch_dl_relocate_symbols (grub_dl_t mod, void *ehdr)
value = *(grub_uint64_t *) sym->st_value + rel->r_addend;
case R_IA64_LTOFF_FPTR22:
*gpptr = value;
- add_value_to_slot_21 (addr, (grub_addr_t) gpptr - (grub_addr_t) gp);
+ grub_ia64_add_value_to_slot_21 (addr, (grub_addr_t) gpptr - (grub_addr_t) gp);
gpptr++;
break;
diff --git a/grub-core/kern/ia64/dl_helper.c b/grub-core/kern/ia64/dl_helper.c
index 9394e32..e2209ca 100644
--- a/grub-core/kern/ia64/dl_helper.c
+++ b/grub-core/kern/ia64/dl_helper.c
@@ -22,9 +22,154 @@
#include <grub/misc.h>
#include <grub/err.h>
#include <grub/mm.h>
+#include <grub/i18n.h>
+#include <grub/ia64/reloc.h>
#pragma GCC diagnostic ignored "-Wcast-align"
+#define MASK20 ((1 << 20) - 1)
+#define MASK3 (~(grub_addr_t) 3)
+
+void
+grub_ia64_add_value_to_slot_20b (grub_addr_t addr, grub_uint32_t value)
+{
+ grub_uint32_t val;
+ switch (addr & 3)
+ {
+ case 0:
+ val = grub_le_to_cpu32 (grub_get_unaligned32 (((grub_uint8_t *)
+ (addr & MASK3) + 2)));
+ val = (((((val & MASK20) + value) & MASK20) << 2)
+ | (val & ~(MASK20 << 2)));
+ grub_set_unaligned32 (((grub_uint8_t *) (addr & MASK3) + 2),
+ grub_cpu_to_le32 (val));
+ break;
+ case 1:
+ val = grub_le_to_cpu32 (grub_get_unaligned32 (((grub_uint8_t *)
+ (addr & MASK3) + 7)));
+ val = ((((((val >> 3) & MASK20) + value) & MASK20) << 3)
+ | (val & ~(MASK20 << 3)));
+ grub_set_unaligned32 (((grub_uint8_t *) (addr & MASK3) + 7),
+ grub_cpu_to_le32 (val));
+ break;
+ case 2:
+ val = grub_le_to_cpu32 (grub_get_unaligned32 (((grub_uint8_t *)
+ (addr & MASK3) + 12)));
+ val = ((((((val >> 4) & MASK20) + value) & MASK20) << 4)
+ | (val & ~(MASK20 << 4)));
+ grub_set_unaligned32 (((grub_uint8_t *) (addr & MASK3) + 12),
+ grub_cpu_to_le32 (val));
+ break;
+ }
+}
+
+#define MASKF21 ( ((1 << 23) - 1) & ~((1 << 7) | (1 << 8)) )
+
+static grub_uint32_t
+add_value_to_slot_21_real (grub_uint32_t a, grub_uint32_t value)
+{
+ grub_uint32_t high, mid, low, c;
+ low = (a & 0x00007f);
+ mid = (a & 0x7fc000) >> 7;
+ high = (a & 0x003e00) << 7;
+ c = (low | mid | high) + value;
+ return (c & 0x7f) | ((c << 7) & 0x7fc000) | ((c >> 7) & 0x0003e00); //0x003e00
+}
+
+void
+grub_ia64_add_value_to_slot_21 (grub_addr_t addr, grub_uint32_t value)
+{
+ grub_uint32_t val;
+ switch (addr & 3)
+ {
+ case 0:
+ val = grub_le_to_cpu32 (grub_get_unaligned32 (((grub_uint8_t *)
+ (addr & MASK3) + 2)));
+ val = ((add_value_to_slot_21_real (((val >> 2) & MASKF21), value)
+ & MASKF21) << 2) | (val & ~(MASKF21 << 2));
+ grub_set_unaligned32 (((grub_uint8_t *) (addr & MASK3) + 2),
+ grub_cpu_to_le32 (val));
+ break;
+ case 1:
+ val = grub_le_to_cpu32 (grub_get_unaligned32 (((grub_uint8_t *)
+ (addr & MASK3) + 7)));
+ val = ((add_value_to_slot_21_real (((val >> 3) & MASKF21), value)
+ & MASKF21) << 3) | (val & ~(MASKF21 << 3));
+ grub_set_unaligned32 (((grub_uint8_t *) (addr & MASK3) + 7),
+ grub_cpu_to_le32 (val));
+ break;
+ case 2:
+ val = grub_le_to_cpu32 (grub_get_unaligned32 (((grub_uint8_t *)
+ (addr & MASK3) + 12)));
+ val = ((add_value_to_slot_21_real (((val >> 4) & MASKF21), value)
+ & MASKF21) << 4) | (val & ~(MASKF21 << 4));
+ grub_set_unaligned32 (((grub_uint8_t *) (addr & MASK3) + 12),
+ grub_cpu_to_le32 (val));
+ break;
+ }
+}
+
+static const grub_uint8_t nopm[5] =
+ {
+ /* [MLX] nop.m 0x0 */
+ 0x05, 0x00, 0x00, 0x00, 0x01
+ };
+
+#ifdef GRUB_UTIL
+static grub_uint8_t jump[0x20] =
+ {
+ /* [MMI] add r15=r15,r1;; */
+ 0x0b, 0x78, 0x3c, 0x02, 0x00, 0x20,
+ /* ld8 r16=[r15],8 */
+ 0x00, 0x41, 0x3c, 0x30, 0x28, 0xc0,
+ /* mov r14=r1;; */
+ 0x01, 0x08, 0x00, 0x84,
+ /* [MIB] ld8 r1=[r15] */
+ 0x11, 0x08, 0x00, 0x1e, 0x18, 0x10,
+ /* mov b6=r16 */
+ 0x60, 0x80, 0x04, 0x80, 0x03, 0x00,
+ /* br.few b6;; */
+ 0x60, 0x00, 0x80, 0x00
+ };
+#else
+static const grub_uint8_t jump[0x20] =
+ {
+ /* ld8 r16=[r15],8 */
+ 0x02, 0x80, 0x20, 0x1e, 0x18, 0x14,
+ /* mov r14=r1;; */
+ 0xe0, 0x00, 0x04, 0x00, 0x42, 0x00,
+ /* nop.i 0x0 */
+ 0x00, 0x00, 0x04, 0x00,
+ /* ld8 r1=[r15] */
+ 0x11, 0x08, 0x00, 0x1e, 0x18, 0x10,
+ /* mov b6=r16 */
+ 0x60, 0x80, 0x04, 0x80, 0x03, 0x00,
+ /* br.few b6;; */
+ 0x60, 0x00, 0x80, 0x00
+ };
+#endif
+
+void
+grub_ia64_make_trampoline (struct grub_ia64_trampoline *tr, grub_uint64_t addr)
+{
+ COMPILE_TIME_ASSERT (sizeof (struct grub_ia64_trampoline)
+ == GRUB_IA64_DL_TRAMP_SIZE);
+ grub_memcpy (tr->nop, nopm, sizeof (tr->nop));
+ tr->addr_hi[0] = ((addr & 0xc00000) >> 16);
+ tr->addr_hi[1] = (addr >> 24) & 0xff;
+ tr->addr_hi[2] = (addr >> 32) & 0xff;
+ tr->addr_hi[3] = (addr >> 40) & 0xff;
+ tr->addr_hi[4] = (addr >> 48) & 0xff;
+ tr->addr_hi[5] = (addr >> 56) & 0xff;
+ tr->e0 = 0xe0;
+ tr->addr_lo[0] = ((addr & 0x000f) << 4) | 0x01;
+ tr->addr_lo[1] = (((addr & 0x0070) >> 4) | ((addr & 0x070000) >> 11)
+ | ((addr & 0x200000) >> 17));
+ tr->addr_lo[2] = ((addr & 0x1f80) >> 5) | ((addr & 0x180000) >> 19);
+ tr->addr_lo[3] = ((addr & 0xe000) >> 13) | 0x60;
+ grub_memcpy (tr->jump, jump, sizeof (tr->jump));
+}
+
void
grub_ia64_dl_get_tramp_got_size (const void *ehdr, grub_size_t *tramp,
grub_size_t *got)
@@ -35,26 +180,26 @@ grub_ia64_dl_get_tramp_got_size (const void *ehdr, grub_size_t *tramp,
unsigned i;
/* Find a symbol table. */
- for (i = 0, s = (Elf64_Shdr *) ((char *) e + grub_le_to_cpu32 (e->e_shoff));
+ for (i = 0, s = (Elf64_Shdr *) ((char *) e + grub_le_to_cpu64 (e->e_shoff));
i < grub_le_to_cpu16 (e->e_shnum);
i++, s = (Elf64_Shdr *) ((char *) s + grub_le_to_cpu16 (e->e_shentsize)))
- if (grub_le_to_cpu32 (s->sh_type) == SHT_SYMTAB)
+ if (s->sh_type == grub_cpu_to_le32_compile_time (SHT_SYMTAB))
break;
if (i == grub_le_to_cpu16 (e->e_shnum))
return;
- for (i = 0, s = (Elf64_Shdr *) ((char *) e + grub_le_to_cpu32 (e->e_shoff));
+ for (i = 0, s = (Elf64_Shdr *) ((char *) e + grub_le_to_cpu64 (e->e_shoff));
i < grub_le_to_cpu16 (e->e_shnum);
i++, s = (Elf64_Shdr *) ((char *) s + grub_le_to_cpu16 (e->e_shentsize)))
- if (grub_le_to_cpu32 (s->sh_type) == SHT_RELA)
+ if (s->sh_type == grub_cpu_to_le32_compile_time (SHT_RELA))
{
Elf64_Rela *rel, *max;
- for (rel = (Elf64_Rela *) ((char *) e + grub_le_to_cpu32 (s->sh_offset)),
- max = rel + grub_le_to_cpu32 (s->sh_size) / grub_le_to_cpu16 (s->sh_entsize);
+ for (rel = (Elf64_Rela *) ((char *) e + grub_le_to_cpu64 (s->sh_offset)),
+ max = rel + grub_le_to_cpu64 (s->sh_size) / grub_le_to_cpu64 (s->sh_entsize);
rel < max; rel++)
- switch (ELF64_R_TYPE (grub_le_to_cpu32 (rel->r_info)))
+ switch (ELF64_R_TYPE (grub_le_to_cpu64 (rel->r_info)))
{
case R_IA64_PCREL21B:
cntt++;
diff --git a/include/grub/ia64/reloc.h b/include/grub/ia64/reloc.h
new file mode 100644
index 0000000..4c02ab2
--- /dev/null
+++ b/include/grub/ia64/reloc.h
@@ -0,0 +1,42 @@
+/*
+ * GRUB -- GRand Unified Bootloader
+ * Copyright (C) 2013 Free Software Foundation, Inc.
+ *
+ * GRUB is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * GRUB 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 General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with GRUB. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#ifndef GRUB_IA64_RELOC_H
+#define GRUB_IA64_RELOC_H 1
+
+struct grub_ia64_trampoline;
+
+void
+grub_ia64_add_value_to_slot_20b (grub_addr_t addr, grub_uint32_t value);
+void
+grub_ia64_add_value_to_slot_21 (grub_addr_t addr, grub_uint32_t value);
+void
+grub_ia64_make_trampoline (struct grub_ia64_trampoline *tr, grub_uint64_t addr);
+
+struct grub_ia64_trampoline
+{
+ /* nop.m */
+ grub_uint8_t nop[5];
+ /* movl r15 = addr*/
+ grub_uint8_t addr_hi[6];
+ grub_uint8_t e0;
+ grub_uint8_t addr_lo[4];
+ grub_uint8_t jump[0x20];
+};
+
+#endif
diff --git a/util/grub-mkimage.c b/util/grub-mkimage.c
index ecea5d4..dce2c29 100644
--- a/util/grub-mkimage.c
+++ b/util/grub-mkimage.c
@@ -40,6 +40,7 @@
#include <stdlib.h>
#include <assert.h>
#include <grub/efi/pe32.h>
+#include <grub/ia64/reloc.h>
#define _GNU_SOURCE 1
#include <argp.h>
@@ -1201,10 +1202,10 @@ generate_image (const char *dir, const char *prefix,
o->subsystem = grub_host_to_target16 (GRUB_PE32_SUBSYSTEM_EFI_APPLICATION);
/* Do these really matter? */
- o->stack_reserve_size = grub_host_to_target32 (0x10000);
- o->stack_commit_size = grub_host_to_target32 (0x10000);
- o->heap_reserve_size = grub_host_to_target32 (0x10000);
- o->heap_commit_size = grub_host_to_target32 (0x10000);
+ o->stack_reserve_size = grub_host_to_target64 (0x10000);
+ o->stack_commit_size = grub_host_to_target64 (0x10000);
+ o->heap_reserve_size = grub_host_to_target64 (0x10000);
+ o->heap_commit_size = grub_host_to_target64 (0x10000);
o->num_data_directories
= grub_host_to_target32 (GRUB_PE32_NUM_DATA_DIRECTORIES);
diff --git a/util/grub-mkimagexx.c b/util/grub-mkimagexx.c
index 476d05e..b6b263d 100644
--- a/util/grub-mkimagexx.c
+++ b/util/grub-mkimagexx.c
@@ -117,7 +117,7 @@ SUFFIX (relocate_symbols) (Elf_Ehdr *e, Elf_Shdr *sections,
if (image_target->elf_target == EM_IA_64 && ELF_ST_TYPE (sym->st_info)
== STT_FUNC)
{
- *jptr = sym->st_value;
+ *jptr = grub_host_to_target64 (sym->st_value);
sym->st_value = (char *) jptr - (char *) jumpers + jumpers_addr;
jptr++;
*jptr = 0;
@@ -143,8 +143,8 @@ SUFFIX (get_symbol_address) (Elf_Ehdr *e, Elf_Shdr *s, Elf_Word i,
Elf_Sym *sym;
sym = (Elf_Sym *) ((char *) e
- + grub_target_to_host32 (s->sh_offset)
- + i * grub_target_to_host32 (s->sh_entsize));
+ + grub_target_to_host (s->sh_offset)
+ + i * grub_target_to_host (s->sh_entsize));
return sym->st_value;
}
@@ -153,7 +153,7 @@ static Elf_Addr *
SUFFIX (get_target_address) (Elf_Ehdr *e, Elf_Shdr *s, Elf_Addr offset,
struct image_target_desc *image_target)
{
- return (Elf_Addr *) ((char *) e + grub_target_to_host32 (s->sh_offset) + offset);
+ return (Elf_Addr *) ((char *) e + grub_target_to_host (s->sh_offset) + offset);
}
#ifdef MKIMAGE_ELF64
@@ -182,128 +182,6 @@ SUFFIX (count_funcs) (Elf_Ehdr *e, Elf_Shdr *symtab_section,
}
#endif
-#ifdef MKIMAGE_ELF64
-struct unaligned_uint32
-{
- grub_uint32_t val;
-} __attribute__ ((packed));
-
-#define MASK20 ((1 << 20) - 1)
-#define MASK19 ((1 << 19) - 1)
-#define MASK3 (~(grub_addr_t) 3)
-
-static void
-add_value_to_slot_20b (grub_addr_t addr, grub_uint32_t value)
-{
- struct unaligned_uint32 *p;
- switch (addr & 3)
- {
- case 0:
- p = (struct unaligned_uint32 *) ((addr & MASK3) + 2);
- p->val = ((((((p->val >> 2) & MASK20) + value) & MASK20) << 2)
- | (p->val & ~(MASK20 << 2)));
- break;
- case 1:
- p = (struct unaligned_uint32 *) ((grub_uint8_t *) (addr & MASK3) + 7);
- p->val = ((((((p->val >> 3) & MASK20) + value) & MASK20) << 3)
- | (p->val & ~(MASK20 << 3)));
- break;
- case 2:
- p = (struct unaligned_uint32 *) ((grub_uint8_t *) (addr & MASK3) + 12);
- p->val = ((((((p->val >> 4) & MASK20) + value) & MASK20) << 4)
- | (p->val & ~(MASK20 << 4)));
- break;
- }
-}
-
-#define MASKF21 ( ((1 << 23) - 1) & ~((1 << 7) | (1 << 8)) )
-
-static grub_uint32_t
-add_value_to_slot_21_real (grub_uint32_t a, grub_uint32_t value)
-{
- grub_uint32_t high, mid, low, c;
- low = (a & 0x00007f);
- mid = (a & 0x7fc000) >> 7;
- high = (a & 0x003e00) << 7;
- c = (low | mid | high) + value;
- return (c & 0x7f) | ((c << 7) & 0x7fc000) | ((c >> 7) & 0x0003e00); //0x003e00
-}
-
-static void
-add_value_to_slot_21 (grub_addr_t addr, grub_uint32_t value)
-{
- struct unaligned_uint32 *p;
- switch (addr & 3)
- {
- case 0:
- p = (struct unaligned_uint32 *) ((addr & MASK3) + 2);
- p->val = ((add_value_to_slot_21_real (((p->val >> 2) & MASKF21), value) & MASKF21) << 2) | (p->val & ~(MASKF21 << 2));
- break;
- case 1:
- p = (struct unaligned_uint32 *) ((grub_uint8_t *) (addr & MASK3) + 7);
- p->val = ((add_value_to_slot_21_real (((p->val >> 3) & MASKF21), value) & MASKF21) << 3) | (p->val & ~(MASKF21 << 3));
- break;
- case 2:
- p = (struct unaligned_uint32 *) ((grub_uint8_t *) (addr & MASK3) + 12);
- p->val = ((add_value_to_slot_21_real (((p->val >> 4) & MASKF21), value) & MASKF21) << 4) | (p->val & ~(MASKF21 << 4));
- break;
- }
-}
-
-
-struct ia64_kernel_trampoline
-{
- /* nop.m */
- grub_uint8_t nop[5];
- /* movl r15 = addr*/
- grub_uint8_t addr_hi[6];
- grub_uint8_t e0;
- grub_uint8_t addr_lo[4];
- grub_uint8_t jump[0x20];
-};
-
-static grub_uint8_t nopm[5] =
- {
- /* [MLX] nop.m 0x0 */
- 0x05, 0x00, 0x00, 0x00, 0x01
- };
-
-static grub_uint8_t jump[0x20] =
- {
- /* [MMI] add r15=r15,r1;; */
- 0x0b, 0x78, 0x3c, 0x02, 0x00, 0x20,
- /* ld8 r16=[r15],8 */
- 0x00, 0x41, 0x3c, 0x30, 0x28, 0xc0,
- /* mov r14=r1;; */
- 0x01, 0x08, 0x00, 0x84,
- /* [MIB] ld8 r1=[r15] */
- 0x11, 0x08, 0x00, 0x1e, 0x18, 0x10,
- /* mov b6=r16 */
- 0x60, 0x80, 0x04, 0x80, 0x03, 0x00,
- /* br.few b6;; */
- 0x60, 0x00, 0x80, 0x00
- };
-
-static void
-make_trampoline (struct ia64_kernel_trampoline *tr, grub_uint64_t addr)
-{
- grub_memcpy (tr->nop, nopm, sizeof (tr->nop));
- tr->addr_hi[0] = ((addr & 0xc00000) >> 16);
- tr->addr_hi[1] = (addr >> 24) & 0xff;
- tr->addr_hi[2] = (addr >> 32) & 0xff;
- tr->addr_hi[3] = (addr >> 40) & 0xff;
- tr->addr_hi[4] = (addr >> 48) & 0xff;
- tr->addr_hi[5] = (addr >> 56) & 0xff;
- tr->e0 = 0xe0;
- tr->addr_lo[0] = ((addr & 0x000f) << 4) | 0x01;
- tr->addr_lo[1] = (((addr & 0x0070) >> 4) | ((addr & 0x070000) >> 11)
- | ((addr & 0x200000) >> 17));
- tr->addr_lo[2] = ((addr & 0x1f80) >> 5) | ((addr & 0x180000) >> 19);
- tr->addr_lo[3] = ((addr & 0xe000) >> 13) | 0x60;
- grub_memcpy (tr->jump, jump, sizeof (tr->jump));
-}
-#endif
-
/* Deal with relocation information. This function relocates addresses
within the virtual address space starting from 0. So only relative
addresses can be fully resolved. Absolute addresses must be relocated
@@ -320,8 +198,9 @@ SUFFIX (relocate_addresses) (Elf_Ehdr *e, Elf_Shdr *sections,
Elf_Half i;
Elf_Shdr *s;
#ifdef MKIMAGE_ELF64
- struct ia64_kernel_trampoline *tr = (void *) (pe_target + tramp_off);
+ struct grub_ia64_trampoline *tr = (void *) (pe_target + tramp_off);
grub_uint64_t *gpptr = (void *) (pe_target + got_off);
+#define MASK19 ((1 << 19) - 1)
#endif
for (i = 0, s = sections;
@@ -352,9 +231,9 @@ SUFFIX (relocate_addresses) (Elf_Ehdr *e, Elf_Shdr *sections,
strtab + grub_target_to_host32 (s->sh_name),
strtab + grub_target_to_host32 (target_section->sh_name));
- rtab_size = grub_target_to_host32 (s->sh_size);
- r_size = grub_target_to_host32 (s->sh_entsize);
- rtab_offset = grub_target_to_host32 (s->sh_offset);
+ rtab_size = grub_target_to_host (s->sh_size);
+ r_size = grub_target_to_host (s->sh_entsize);
+ rtab_offset = grub_target_to_host (s->sh_offset);
num_rs = rtab_size / r_size;
for (j = 0, r = (Elf_Rela *) ((char *) e + rtab_offset);
@@ -375,7 +254,7 @@ SUFFIX (relocate_addresses) (Elf_Ehdr *e, Elf_Shdr *sections,
ELF_R_SYM (info), image_target);
addend = (s->sh_type == grub_target_to_host32 (SHT_RELA)) ?
- r->r_addend : 0;
+ grub_target_to_host (r->r_addend) : 0;
switch (image_target->elf_target)
{
@@ -461,14 +340,14 @@ SUFFIX (relocate_addresses) (Elf_Ehdr *e, Elf_Shdr *sections,
case R_IA64_PCREL21B:
{
grub_uint64_t noff;
- make_trampoline (tr, addend + sym_addr);
+ grub_ia64_make_trampoline (tr, addend + sym_addr);
noff = ((char *) tr - (char *) pe_target
- target_section_addr - (offset & ~3)) >> 4;
tr++;
if (noff & ~MASK19)
grub_util_error ("trampoline offset too big (%"
PRIxGRUB_UINT64_T ")", noff);
- add_value_to_slot_20b ((grub_addr_t) target, noff);
+ grub_ia64_add_value_to_slot_20b ((grub_addr_t) target, noff);
}
break;
@@ -478,8 +357,8 @@ SUFFIX (relocate_addresses) (Elf_Ehdr *e, Elf_Shdr *sections,
Elf_Sym *sym;
sym = (Elf_Sym *) ((char *) e
- + grub_target_to_host32 (symtab_section->sh_offset)
- + ELF_R_SYM (info) * grub_target_to_host32 (symtab_section->sh_entsize));
+ + grub_target_to_host (symtab_section->sh_offset)
+ + ELF_R_SYM (info) * grub_target_to_host (symtab_section->sh_entsize));
if (ELF_ST_TYPE (sym->st_info) == STT_FUNC)
sym_addr = grub_target_to_host64 (*(grub_uint64_t *) (pe_target
+ sym->st_value
@@ -487,15 +366,15 @@ SUFFIX (relocate_addresses) (Elf_Ehdr *e, Elf_Shdr *sections,
}
case R_IA64_LTOFF_FPTR22:
*gpptr = grub_host_to_target64 (addend + sym_addr);
- add_value_to_slot_21 ((grub_addr_t) target,
- (char *) gpptr - (char *) pe_target
- + image_target->vaddr_offset);
+ grub_ia64_add_value_to_slot_21 ((grub_addr_t) target,
+ (char *) gpptr - (char *) pe_target
+ + image_target->vaddr_offset);
gpptr++;
break;
case R_IA64_GPREL22:
- add_value_to_slot_21 ((grub_addr_t) target,
- addend + sym_addr);
+ grub_ia64_add_value_to_slot_21 ((grub_addr_t) target,
+ addend + sym_addr);
break;
case R_IA64_PCREL64LSB:
*target = grub_host_to_target64 (grub_target_to_host64 (*target)
@@ -514,7 +393,8 @@ SUFFIX (relocate_addresses) (Elf_Ehdr *e, Elf_Shdr *sections,
+ addend + sym_addr);
grub_util_info ("relocating a direct entry to 0x%"
PRIxGRUB_UINT64_T " at the offset 0x%llx",
- *target, (unsigned long long) offset);
+ grub_target_to_host64 (*target),
+ (unsigned long long) offset);
break;
/* We treat LTOFF22X as LTOFF22, so we can ignore LDXMOV. */
@@ -650,8 +530,8 @@ SUFFIX (make_reloc_section) (Elf_Ehdr *e, void **out,
for (i = 0, s = sections; i < num_sections;
i++, s = (Elf_Shdr *) ((char *) s + section_entsize))
- if ((s->sh_type == grub_cpu_to_le32 (SHT_REL)) ||
- (s->sh_type == grub_cpu_to_le32 (SHT_RELA)))
+ if ((grub_target_to_host32 (s->sh_type) == SHT_REL) ||
+ (grub_target_to_host32 (s->sh_type) == SHT_RELA))
{
Elf_Rel *r;
Elf_Word rtab_size, r_size, num_rs;
@@ -662,9 +542,9 @@ SUFFIX (make_reloc_section) (Elf_Ehdr *e, void **out,
grub_util_info ("translating the relocation section %s",
strtab + grub_le_to_cpu32 (s->sh_name));
- rtab_size = grub_le_to_cpu32 (s->sh_size);
- r_size = grub_le_to_cpu32 (s->sh_entsize);
- rtab_offset = grub_le_to_cpu32 (s->sh_offset);
+ rtab_size = grub_target_to_host (s->sh_size);
+ r_size = grub_target_to_host (s->sh_entsize);
+ rtab_offset = grub_target_to_host (s->sh_offset);
num_rs = rtab_size / r_size;
section_address = section_addresses[grub_le_to_cpu32 (s->sh_info)];
@@ -676,8 +556,8 @@ SUFFIX (make_reloc_section) (Elf_Ehdr *e, void **out,
Elf_Addr info;
Elf_Addr offset;
- offset = grub_le_to_cpu32 (r->r_offset);
- info = grub_le_to_cpu32 (r->r_info);
+ offset = grub_target_to_host (r->r_offset);
+ info = grub_target_to_host (r->r_info);
/* Necessary to relocate only absolute addresses. */
switch (image_target->elf_target)
@@ -1027,7 +907,7 @@ SUFFIX (load_image) (const char *kernel_path, grub_size_t *exec_size,
*kernel_sz = ALIGN_UP (*kernel_sz, 16);
grub_ia64_dl_get_tramp_got_size (e, &tramp, &got);
- tramp *= sizeof (struct ia64_kernel_trampoline);
+ tramp *= sizeof (struct grub_ia64_trampoline);
ia64_toff = *kernel_sz;
*kernel_sz += ALIGN_UP (tramp, 16);
--
1.8.1.4
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