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From 7244fbfa85bc874225cd91a797e94bca78697848 Mon Sep 17 00:00:00 2001
From: Holger Freyther <ich@tamarin.(none)>
Date: Sun, 12 Oct 2008 13:45:14 +0200
Subject: [PATCH] ARM EABI patch from Openembedded? Taken from where?
---
src/arch-arm.c | 177 ++++++++++++++++++++++++++++++++++++++++++++++++++++++--
1 files changed, 172 insertions(+), 5 deletions(-)
diff --git a/src/arch-arm.c b/src/arch-arm.c
index 6641e86..3080b0a 100644
--- a/src/arch-arm.c
+++ b/src/arch-arm.c
@@ -145,6 +145,26 @@ arm_prelink_rel (struct prelink_info *info, GElf_Rel *rel, GElf_Addr reladdr)
error (0, 0, "%s: R_ARM_PC24 relocs with non-zero addend should not be present in prelinked REL sections",
dso->filename);
return 1;
+ /* DTPOFF32, DTPMOD32 and TPOFF32 is impossible to predict unless prelink
+ sets the rules. Also for DTPOFF32/TPOFF32 there is REL->RELA problem. */
+ case R_ARM_TLS_DTPOFF32:
+ if (dso->ehdr.e_type == ET_EXEC)
+ error (0, 0, "%s: R_ARM_TLS_DTPOFF32 relocs should not be present in prelinked ET_EXEC REL sections",
+ dso->filename);
+ break;
+ case R_ARM_TLS_DTPMOD32:
+ if (dso->ehdr.e_type == ET_EXEC)
+ {
+ error (0, 0, "%s: R_ARM_TLS_DTPMOD32 reloc in executable?",
+ dso->filename);
+ return 1;
+ }
+ break;
+ case R_ARM_TLS_TPOFF32:
+ if (dso->ehdr.e_type == ET_EXEC)
+ error (0, 0, "%s: R_ARM_TLS_TPOFF32 relocs should not be present in prelinked ET_EXEC REL sections",
+ dso->filename);
+ break;
case R_ARM_COPY:
if (dso->ehdr.e_type == ET_EXEC)
/* COPY relocs are handled specially in generic code. */
@@ -195,6 +215,25 @@ arm_prelink_rela (struct prelink_info *info, GElf_Rela *rela,
write_le32 (dso, rela->r_offset,
(read_ule32 (dso, rela->r_offset) & 0xff000000) | val);
break;
+ case R_ARM_TLS_DTPOFF32:
+ if (dso->ehdr.e_type == ET_EXEC)
+ write_le32 (dso, rela->r_offset, value + rela->r_addend);
+ break;
+ /* DTPMOD32 and TPOFF32 are impossible to predict unless prelink
+ sets the rules. */
+ case R_ARM_TLS_DTPMOD32:
+ if (dso->ehdr.e_type == ET_EXEC)
+ {
+ error (0, 0, "%s: R_ARM_TLS_DTPMOD32 reloc in executable?",
+ dso->filename);
+ return 1;
+ }
+ break;
+ case R_ARM_TLS_TPOFF32:
+ if (dso->ehdr.e_type == ET_EXEC && info->resolvetls)
+ write_le32 (dso, rela->r_offset,
+ value + rela->r_addend + info->resolvetls->offset);
+ break;
case R_ARM_COPY:
if (dso->ehdr.e_type == ET_EXEC)
/* COPY relocs are handled specially in generic code. */
@@ -315,6 +354,7 @@ arm_prelink_conflict_rel (DSO *dso, struct prelink_info *info, GElf_Rel *rel,
{
GElf_Addr value;
struct prelink_conflict *conflict;
+ struct prelink_tls *tls;
GElf_Rela *ret;
if (GELF_R_TYPE (rel->r_info) == R_ARM_RELATIVE
@@ -324,8 +364,32 @@ arm_prelink_conflict_rel (DSO *dso, struct prelink_info *info, GElf_Rel *rel,
conflict = prelink_conflict (info, GELF_R_SYM (rel->r_info),
GELF_R_TYPE (rel->r_info));
if (conflict == NULL)
- return 0;
- value = conflict_lookup_value (conflict);
+ {
+ if (info->curtls == NULL)
+ return 0;
+ switch (GELF_R_TYPE (rel->r_info))
+ {
+ /* Even local DTPMOD and {D,}TPOFF relocs need conflicts. */
+ case R_ARM_TLS_DTPMOD32:
+ case R_ARM_TLS_DTPOFF32:
+ case R_ARM_TLS_TPOFF32:
+ break;
+ default:
+ return 0;
+ }
+ value = 0;
+ }
+ else
+ {
+ /* DTPOFF32 wants to see only real conflicts, not lookups
+ with reloc_class RTYPE_CLASS_TLS. */
+ if (GELF_R_TYPE (rel->r_info) == R_ARM_TLS_DTPOFF32
+ && conflict->lookup.tls == conflict->conflict.tls
+ && conflict->lookupval == conflict->conflictval)
+ return 0;
+
+ value = conflict_lookup_value (conflict);
+ }
ret = prelink_conflict_add_rela (info);
if (ret == NULL)
return 1;
@@ -342,6 +406,33 @@ arm_prelink_conflict_rel (DSO *dso, struct prelink_info *info, GElf_Rel *rel,
error (0, 0, "%s: R_ARM_%s relocs should not be present in prelinked REL sections",
dso->filename, GELF_R_TYPE (rel->r_info) == R_ARM_ABS32 ? "ABS32" : "PC24");
return 1;
+ case R_ARM_TLS_DTPMOD32:
+ case R_ARM_TLS_DTPOFF32:
+ case R_ARM_TLS_TPOFF32:
+ if (conflict != NULL
+ && (conflict->reloc_class != RTYPE_CLASS_TLS
+ || conflict->lookup.tls == NULL))
+ {
+ error (0, 0, "%s: R_ARM_TLS not resolving to STT_TLS symbol",
+ dso->filename);
+ return 1;
+ }
+ tls = conflict ? conflict->lookup.tls : info->curtls;
+ ret->r_info = GELF_R_INFO (0, R_ARM_ABS32);
+ switch (GELF_R_TYPE (rel->r_info))
+ {
+ case R_ARM_TLS_DTPMOD32:
+ ret->r_addend = tls->modid;
+ break;
+ case R_ARM_TLS_DTPOFF32:
+ ret->r_addend = value + read_ule32 (dso, rel->r_offset);
+ break;
+ case R_ARM_TLS_TPOFF32:
+ ret->r_addend = value + read_ule32 (dso, rel->r_offset)
+ + tls->offset;
+ break;
+ }
+ break;
case R_ARM_COPY:
error (0, 0, "R_ARM_COPY should not be present in shared libraries");
return 1;
@@ -359,6 +450,7 @@ arm_prelink_conflict_rela (DSO *dso, struct prelink_info *info,
{
GElf_Addr value;
struct prelink_conflict *conflict;
+ struct prelink_tls *tls;
GElf_Rela *ret;
Elf32_Sword val;
@@ -369,8 +461,32 @@ arm_prelink_conflict_rela (DSO *dso, struct prelink_info *info,
conflict = prelink_conflict (info, GELF_R_SYM (rela->r_info),
GELF_R_TYPE (rela->r_info));
if (conflict == NULL)
- return 0;
- value = conflict_lookup_value (conflict);
+ {
+ if (info->curtls == NULL)
+ return 0;
+ switch (GELF_R_TYPE (rela->r_info))
+ {
+ /* Even local DTPMOD and {D,}TPOFF relocs need conflicts. */
+ case R_ARM_TLS_DTPMOD32:
+ case R_ARM_TLS_DTPOFF32:
+ case R_ARM_TLS_TPOFF32:
+ break;
+ default:
+ return 0;
+ }
+ value = 0;
+ }
+ else
+ {
+ /* DTPOFF32 wants to see only real conflicts, not lookups
+ with reloc_class RTYPE_CLASS_TLS. */
+ if (GELF_R_TYPE (rela->r_info) == R_ARM_TLS_DTPOFF32
+ && conflict->lookup.tls == conflict->conflict.tls
+ && conflict->lookupval == conflict->conflictval)
+ return 0;
+
+ value = conflict_lookup_value (conflict);
+ }
ret = prelink_conflict_add_rela (info);
if (ret == NULL)
return 1;
@@ -398,6 +514,32 @@ arm_prelink_conflict_rela (DSO *dso, struct prelink_info *info,
case R_ARM_COPY:
error (0, 0, "R_ARM_COPY should not be present in shared libraries");
return 1;
+ case R_ARM_TLS_DTPMOD32:
+ case R_ARM_TLS_DTPOFF32:
+ case R_ARM_TLS_TPOFF32:
+ if (conflict != NULL
+ && (conflict->reloc_class != RTYPE_CLASS_TLS
+ || conflict->lookup.tls == NULL))
+ {
+ error (0, 0, "%s: R_386_TLS not resolving to STT_TLS symbol",
+ dso->filename);
+ return 1;
+ }
+ tls = conflict ? conflict->lookup.tls : info->curtls;
+ ret->r_info = GELF_R_INFO (0, R_ARM_ABS32);
+ switch (GELF_R_TYPE (rela->r_info))
+ {
+ case R_ARM_TLS_DTPMOD32:
+ ret->r_addend = tls->modid;
+ break;
+ case R_ARM_TLS_DTPOFF32:
+ ret->r_addend = value + rela->r_addend;
+ break;
+ case R_ARM_TLS_TPOFF32:
+ ret->r_addend = value + rela->r_addend + tls->offset;
+ break;
+ }
+ break;
default:
error (0, 0, "%s: Unknown arm relocation type %d", dso->filename,
(int) GELF_R_TYPE (rela->r_info));
@@ -418,6 +560,8 @@ arm_rel_to_rela (DSO *dso, GElf_Rel *rel, GElf_Rela *rela)
abort ();
case R_ARM_RELATIVE:
case R_ARM_ABS32:
+ case R_ARM_TLS_TPOFF32:
+ case R_ARM_TLS_DTPOFF32:
rela->r_addend = (Elf32_Sword) read_ule32 (dso, rel->r_offset);
break;
case R_ARM_PC24:
@@ -426,6 +570,7 @@ arm_rel_to_rela (DSO *dso, GElf_Rel *rel, GElf_Rela *rela)
break;
case R_ARM_COPY:
case R_ARM_GLOB_DAT:
+ case R_ARM_TLS_DTPMOD32:
rela->r_addend = 0;
break;
}
@@ -445,6 +590,8 @@ arm_rela_to_rel (DSO *dso, GElf_Rela *rela, GElf_Rel *rel)
abort ();
case R_ARM_RELATIVE:
case R_ARM_ABS32:
+ case R_ARM_TLS_TPOFF32:
+ case R_ARM_TLS_DTPOFF32:
write_le32 (dso, rela->r_offset, rela->r_addend);
break;
case R_ARM_PC24:
@@ -453,6 +600,7 @@ arm_rela_to_rel (DSO *dso, GElf_Rela *rela, GElf_Rel *rel)
| ((rela->r_addend >> 2) & 0xffffff));
break;
case R_ARM_GLOB_DAT:
+ case R_ARM_TLS_DTPMOD32:
write_le32 (dso, rela->r_offset, 0);
break;
}
@@ -488,6 +636,15 @@ arm_need_rel_to_rela (DSO *dso, int first, int last)
/* FALLTHROUGH */
case R_ARM_PC24:
return 1;
+ case R_ARM_TLS_DTPOFF32:
+ case R_ARM_TLS_TPOFF32:
+ /* In shared libraries {D,}TPOFF32 is changed always into
+ conflicts, for executables we need to preserve
+ original addend. */
+ if (dso->ehdr.e_type == ET_EXEC) {
+ return 1;
+ }
+ break;
}
}
}
@@ -614,6 +771,12 @@ arm_undo_prelink_rel (DSO *dso, GElf_Rel *rel, GElf_Addr reladdr)
return 0;
error (0, 0, "%s: R_ARM_COPY reloc in shared library?", dso->filename);
return 1;
+ case R_ARM_TLS_DTPMOD32:
+ write_le32 (dso, rel->r_offset, 0);
+ break;
+ case R_ARM_TLS_DTPOFF32:
+ case R_ARM_TLS_TPOFF32:
+ break;
default:
error (0, 0, "%s: Unknown arm relocation type %d", dso->filename,
(int) GELF_R_TYPE (rel->r_info));
@@ -636,6 +799,10 @@ arm_reloc_class (int reloc_type)
{
case R_ARM_COPY: return RTYPE_CLASS_COPY;
case R_ARM_JUMP_SLOT: return RTYPE_CLASS_PLT;
+ case R_ARM_TLS_DTPMOD32:
+ case R_ARM_TLS_DTPOFF32:
+ case R_ARM_TLS_TPOFF32:
+ return RTYPE_CLASS_TLS;
default: return RTYPE_CLASS_VALID;
}
}
@@ -648,7 +815,7 @@ PL_ARCH = {
.R_JMP_SLOT = R_ARM_JUMP_SLOT,
.R_COPY = R_ARM_COPY,
.R_RELATIVE = R_ARM_RELATIVE,
- .dynamic_linker = "/lib/ld-linux.so.2",
+ .dynamic_linker = "/lib/ld-linux.so.3",
.adjust_dyn = arm_adjust_dyn,
.adjust_rel = arm_adjust_rel,
.adjust_rela = arm_adjust_rela,
--
1.5.4.3
|
