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[ARM] Add armelf_linux_fdpiceabi and armelfb_linux_fdpiceabi BFD backends

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Initial definition of these new backends.

2018-04-25  Christophe Lyon  <christophe.lyon@st.com>
	Mickaël Guêné  <mickael.guene@st.com>

	bfd/
	* config.bfd (arm*-*-linux-*): Add arm_elf32_fdpic_be_vec and
	arm_elf32_fdpic_le_vec to targ_selvecs. Accept
	arm*-*-uclinuxfdpiceabi.
	* configure.ac: Add support for arm_elf32_fdpic_be_vec and
	arm_elf32_fdpic_le_vec.
	* configure: Regenerate.
	* elf32-arm.c (struct elf32_arm_link_hash_table): Add fdpic_p.
	(elf32_arm_link_hash_table_create): Initialize fdpic_p.
	(TARGET_LITTLE_SYM, TARGET_LITTLE_NAME, TARGET_BIG_SYM)
	(TARGET_BIG_NAME, elf_match_priority): Define for FDPIC targets.
	(elf32_arm_fdpic_link_hash_table_create): New.
	* targets.c (_bfd_target_vector): Add arm_elf32_fdpic_be_vec and
	arm_elf32_fdpic_le_vec.

	ld/
	* Makefile.am (ALL_EMULATION_SOURCES): Add
	earmelf_linux_fdpiceabi.c and earmelfb_linux_fdpiceabi.c.
	(earmelf_linux_fdpiceabi.c, earmelfb_linux_fdpiceabi.c): New rules.
	* Makefile.in: Regenerate.
	* configure.tgt (arm*-*-uclinuxfdpiceabi): Handle new target.
	* emulparams/armelf_linux_fdpiceabi.sh: New.
	* emulparams/armelfb_linux_fdpiceabi.sh: New.
This commit is contained in:
Christophe Lyon 2018-03-20 10:54:26 +01:00 committed by Christophe Lyon
parent 249b573352
commit 617a5ada88
12 changed files with 131 additions and 3 deletions
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17
bfd/ChangeLog
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@ -1,3 +1,20 @@
2018-04-25 Christophe Lyon <christophe.lyon@st.com>
Mickaël Guêné <mickael.guene@st.com>
* config.bfd (arm*-*-linux-*): Add arm_elf32_fdpic_be_vec and
arm_elf32_fdpic_le_vec to targ_selvecs. Accept
arm*-*-uclinuxfdpiceabi.
* configure.ac: Add support for arm_elf32_fdpic_be_vec and
arm_elf32_fdpic_le_vec.
* configure: Regenerate.
* elf32-arm.c (struct elf32_arm_link_hash_table): Add fdpic_p.
(elf32_arm_link_hash_table_create): Initialize fdpic_p.
(TARGET_LITTLE_SYM, TARGET_LITTLE_NAME, TARGET_BIG_SYM)
(TARGET_BIG_NAME, elf_match_priority): Define for FDPIC targets.
(elf32_arm_fdpic_link_hash_table_create): New.
* targets.c (_bfd_target_vector): Add arm_elf32_fdpic_be_vec and
arm_elf32_fdpic_le_vec.
2018-04-25 Alan Modra <amodra@gmail.com>
* elf-linux-core.h: Disable gcc-8 string truncation warning.

4
bfd/config.bfd
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@ -386,9 +386,9 @@ case "${targ}" in
;;
arm-*-elf | arm*-*-freebsd* | arm*-*-linux-* | arm*-*-conix* | \
arm*-*-uclinux* | arm-*-kfreebsd*-gnu | \
arm*-*-eabi* | arm-*-rtems*)
arm*-*-eabi* | arm-*-rtems* | arm*-*-uclinuxfdpiceabi)
targ_defvec=arm_elf32_le_vec
targ_selvecs=arm_elf32_be_vec
targ_selvecs="arm_elf32_fdpic_le_vec arm_elf32_be_vec arm_elf32_fdpic_be_vec"
;;
arm*-*-vxworks | arm*-*-windiss)
targ_defvec=arm_elf32_vxworks_le_vec

2
bfd/configure vendored
View File

@ -14347,6 +14347,8 @@ do
arc_elf32_le_vec) tb="$tb elf32-arc.lo elf32.lo $elf" ;;
arm_elf32_be_vec) tb="$tb elf32-arm.lo elf32.lo elf-nacl.lo elf-vxworks.lo $elf" ;;
arm_elf32_le_vec) tb="$tb elf32-arm.lo elf32.lo elf-nacl.lo elf-vxworks.lo $elf" ;;
arm_elf32_fdpic_be_vec) tb="$tb elf32-arm.lo elf32.lo elf-nacl.lo elf-vxworks.lo $elf" ;;
arm_elf32_fdpic_le_vec) tb="$tb elf32-arm.lo elf32.lo elf-nacl.lo elf-vxworks.lo $elf" ;;
arm_elf32_nacl_be_vec) tb="$tb elf32-arm.lo elf32.lo elf-nacl.lo elf-vxworks.lo $elf" ;;
arm_elf32_nacl_le_vec) tb="$tb elf32-arm.lo elf32.lo elf-nacl.lo elf-vxworks.lo $elf" ;;
arm_elf32_symbian_be_vec) tb="$tb elf32-arm.lo elf32.lo elf-nacl.lo elf-vxworks.lo $elf" ;;

2
bfd/configure.ac
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@ -424,6 +424,8 @@ do
arc_elf32_le_vec) tb="$tb elf32-arc.lo elf32.lo $elf" ;;
arm_elf32_be_vec) tb="$tb elf32-arm.lo elf32.lo elf-nacl.lo elf-vxworks.lo $elf" ;;
arm_elf32_le_vec) tb="$tb elf32-arm.lo elf32.lo elf-nacl.lo elf-vxworks.lo $elf" ;;
arm_elf32_fdpic_be_vec) tb="$tb elf32-arm.lo elf32.lo elf-nacl.lo elf-vxworks.lo $elf" ;;
arm_elf32_fdpic_le_vec) tb="$tb elf32-arm.lo elf32.lo elf-nacl.lo elf-vxworks.lo $elf" ;;
arm_elf32_nacl_be_vec) tb="$tb elf32-arm.lo elf32.lo elf-nacl.lo elf-vxworks.lo $elf" ;;
arm_elf32_nacl_le_vec) tb="$tb elf32-arm.lo elf32.lo elf-nacl.lo elf-vxworks.lo $elf" ;;
arm_elf32_symbian_be_vec) tb="$tb elf32-arm.lo elf32.lo elf-nacl.lo elf-vxworks.lo $elf" ;;

44
bfd/elf32-arm.c
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@ -3228,6 +3228,9 @@ struct elf32_arm_link_hash_table
unsigned int bfd_count;
unsigned int top_index;
asection **input_list;
/* True if the target system uses FDPIC. */
int fdpic_p;
};
static inline int
@ -3806,6 +3809,7 @@ elf32_arm_link_hash_table_create (bfd *abfd)
#endif
ret->use_rel = TRUE;
ret->obfd = abfd;
ret->fdpic_p = 0;
if (!bfd_hash_table_init (&ret->stub_hash_table, stub_hash_newfunc,
sizeof (struct elf32_arm_stub_hash_entry)))
@ -19411,6 +19415,46 @@ elf32_arm_nacl_plt_sym_val (bfd_vma i, const asection *plt,
#define ELF_COMMONPAGESIZE 0x1000
/* FDPIC Targets. */
#undef TARGET_LITTLE_SYM
#define TARGET_LITTLE_SYM arm_elf32_fdpic_le_vec
#undef TARGET_LITTLE_NAME
#define TARGET_LITTLE_NAME "elf32-littlearm-fdpic"
#undef TARGET_BIG_SYM
#define TARGET_BIG_SYM arm_elf32_fdpic_be_vec
#undef TARGET_BIG_NAME
#define TARGET_BIG_NAME "elf32-bigarm-fdpic"
#undef elf_match_priority
#define elf_match_priority 128
/* Like elf32_arm_link_hash_table_create -- but overrides
appropriately for FDPIC. */
static struct bfd_link_hash_table *
elf32_arm_fdpic_link_hash_table_create (bfd *abfd)
{
struct bfd_link_hash_table *ret;
ret = elf32_arm_link_hash_table_create (abfd);
if (ret)
{
struct elf32_arm_link_hash_table *htab = (struct elf32_arm_link_hash_table *) ret;
htab->fdpic_p = 1;
}
return ret;
}
#undef elf32_bed
#define elf32_bed elf32_arm_fdpic_bed
#undef bfd_elf32_bfd_link_hash_table_create
#define bfd_elf32_bfd_link_hash_table_create elf32_arm_fdpic_link_hash_table_create
#include "elf32-target.h"
#undef elf_match_priority
/* VxWorks Targets. */
#undef TARGET_LITTLE_SYM

4
bfd/targets.c
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@ -599,6 +599,8 @@ extern const bfd_target arc_elf32_be_vec;
extern const bfd_target arc_elf32_le_vec;
extern const bfd_target arm_elf32_be_vec;
extern const bfd_target arm_elf32_le_vec;
extern const bfd_target arm_elf32_fdpic_be_vec;
extern const bfd_target arm_elf32_fdpic_le_vec;
extern const bfd_target arm_elf32_nacl_be_vec;
extern const bfd_target arm_elf32_nacl_le_vec;
extern const bfd_target arm_elf32_symbian_be_vec;
@ -921,6 +923,8 @@ static const bfd_target * const _bfd_target_vector[] =
&arm_elf32_be_vec,
&arm_elf32_le_vec,
&arm_elf32_fdpic_be_vec,
&arm_elf32_fdpic_le_vec,
&arm_elf32_symbian_be_vec,
&arm_elf32_symbian_le_vec,
&arm_elf32_vxworks_be_vec,

11
ld/ChangeLog
View File

@ -1,3 +1,14 @@
2018-04-25 Christophe Lyon <christophe.lyon@st.com>
Mickaël Guêné <mickael.guene@st.com>
* Makefile.am (ALL_EMULATION_SOURCES): Add
earmelf_linux_fdpiceabi.c and earmelfb_linux_fdpiceabi.c.
(earmelf_linux_fdpiceabi.c, earmelfb_linux_fdpiceabi.c): New rules.
* Makefile.in: Regenerate.
* configure.tgt (arm*-*-uclinuxfdpiceabi): Handle new target.
* emulparams/armelf_linux_fdpiceabi.sh: New.
* emulparams/armelfb_linux_fdpiceabi.sh: New.
2018-04-25 Alan Modra <amodra@gmail.com>
* Makefile.am: Remove arm-aout and arm-coff support.

13
ld/Makefile.am
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@ -172,6 +172,7 @@ ALL_EMULATION_SOURCES = \
earmelf_fuchsia.c \
earmelf_linux.c \
earmelf_linux_eabi.c \
earmelf_linux_fdpiceabi.c \
earmelf_nacl.c \
earmelf_nbsd.c \
earmelf_phoenix.c \
@ -181,6 +182,7 @@ ALL_EMULATION_SOURCES = \
earmelfb_fuchsia.c \
earmelfb_linux.c \
earmelfb_linux_eabi.c \
earmelfb_linux_fdpiceabi.c \
earmelfb_nacl.c \
earmelfb_nbsd.c \
earmnto.c \
@ -703,6 +705,11 @@ earmelf_linux_eabi.c: $(srcdir)/emulparams/armelf_linux_eabi.sh \
$(ELF_DEPS) $(srcdir)/emultempl/armelf.em \
$(srcdir)/scripttempl/elf.sc ${GEN_DEPENDS}
earmelf_linux_fdpiceabi.c: $(srcdir)/emulparams/armelf_linux_fdpiceabi.sh \
$(srcdir)/emulparams/armelf_linux.sh \
$(ELF_DEPS) $(srcdir)/emultempl/armelf.em \
$(srcdir)/scripttempl/elf.sc ${GEN_DEPENDS}
earmelf_nacl.c: $(srcdir)/emulparams/armelf_nacl.sh \
$(srcdir)/emulparams/armelf_linux_eabi.sh \
$(srcdir)/emulparams/armelf_linux.sh \
@ -749,6 +756,12 @@ earmelfb_linux_eabi.c: $(srcdir)/emulparams/armelfb_linux_eabi.sh \
$(ELF_DEPS) $(srcdir)/emultempl/armelf.em \
$(srcdir)/scripttempl/elf.sc ${GEN_DEPENDS}
earmelfb_linux_fdpiceabi.c: $(srcdir)/emulparams/armelfb_linux_fdpiceabi.sh \
$(srcdir)/emulparams/armelfb_linux_fdpiceabi.sh \
$(srcdir)/emulparams/armelf_linux.sh \
$(ELF_DEPS) $(srcdir)/emultempl/armelf.em \
$(srcdir)/scripttempl/elf.sc ${GEN_DEPENDS}
earmelfb_nacl.c: $(srcdir)/emulparams/armelfb_nacl.sh \
$(srcdir)/emulparams/armelf_nacl.sh \
$(srcdir)/emulparams/armelf_linux_eabi.sh \

15
ld/Makefile.in
View File

@ -541,6 +541,7 @@ ALL_EMULATION_SOURCES = \
earmelf_fuchsia.c \
earmelf_linux.c \
earmelf_linux_eabi.c \
earmelf_linux_fdpiceabi.c \
earmelf_nacl.c \
earmelf_nbsd.c \
earmelf_phoenix.c \
@ -550,6 +551,7 @@ ALL_EMULATION_SOURCES = \
earmelfb_fuchsia.c \
earmelfb_linux.c \
earmelfb_linux_eabi.c \
earmelfb_linux_fdpiceabi.c \
earmelfb_nacl.c \
earmelfb_nbsd.c \
earmnto.c \
@ -1086,6 +1088,7 @@ distclean-compile:
@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/earmelf_fuchsia.Po@am__quote@
@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/earmelf_linux.Po@am__quote@
@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/earmelf_linux_eabi.Po@am__quote@
@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/earmelf_linux_fdpiceabi.Po@am__quote@
@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/earmelf_nacl.Po@am__quote@
@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/earmelf_nbsd.Po@am__quote@
@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/earmelf_phoenix.Po@am__quote@
@ -1095,6 +1098,7 @@ distclean-compile:
@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/earmelfb_fuchsia.Po@am__quote@
@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/earmelfb_linux.Po@am__quote@
@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/earmelfb_linux_eabi.Po@am__quote@
@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/earmelfb_linux_fdpiceabi.Po@am__quote@
@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/earmelfb_nacl.Po@am__quote@
@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/earmelfb_nbsd.Po@am__quote@
@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/earmnto.Po@am__quote@
@ -2202,6 +2206,11 @@ earmelf_linux_eabi.c: $(srcdir)/emulparams/armelf_linux_eabi.sh \
$(ELF_DEPS) $(srcdir)/emultempl/armelf.em \
$(srcdir)/scripttempl/elf.sc ${GEN_DEPENDS}
earmelf_linux_fdpiceabi.c: $(srcdir)/emulparams/armelf_linux_fdpiceabi.sh \
$(srcdir)/emulparams/armelf_linux.sh \
$(ELF_DEPS) $(srcdir)/emultempl/armelf.em \
$(srcdir)/scripttempl/elf.sc ${GEN_DEPENDS}
earmelf_nacl.c: $(srcdir)/emulparams/armelf_nacl.sh \
$(srcdir)/emulparams/armelf_linux_eabi.sh \
$(srcdir)/emulparams/armelf_linux.sh \
@ -2248,6 +2257,12 @@ earmelfb_linux_eabi.c: $(srcdir)/emulparams/armelfb_linux_eabi.sh \
$(ELF_DEPS) $(srcdir)/emultempl/armelf.em \
$(srcdir)/scripttempl/elf.sc ${GEN_DEPENDS}
earmelfb_linux_fdpiceabi.c: $(srcdir)/emulparams/armelfb_linux_fdpiceabi.sh \
$(srcdir)/emulparams/armelf_linux_fdpiceabi.sh \
$(srcdir)/emulparams/armelf_linux.sh \
$(ELF_DEPS) $(srcdir)/emultempl/armelf.em \
$(srcdir)/scripttempl/elf.sc ${GEN_DEPENDS}
earmelfb_nacl.c: $(srcdir)/emulparams/armelfb_nacl.sh \
$(srcdir)/emulparams/armelf_nacl.sh \
$(srcdir)/emulparams/armelf_linux_eabi.sh \

7
ld/configure.tgt
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@ -129,7 +129,12 @@ arm*b-*-linux-*) targ_emul=armelfb_linux
targ_extra_libpath="armelf_linux"
;;
arm*-*-linux-*eabi*) targ_emul=armelf_linux_eabi
targ_extra_emuls=armelfb_linux_eabi
targ_extra_emuls="armelfb_linux_eabi"
targ_extra_libpath=$targ_extra_emuls
;;
arm*-*-uclinuxfdpiceabi)
targ_emul=armelf_linux_eabi
targ_extra_emuls="armelfb_linux_eabi armelf_linux_fdpiceabi armelfb_linux_fdpiceabi"
targ_extra_libpath=$targ_extra_emuls
;;
arm*-*-linux-*) targ_emul=armelf_linux

13
ld/emulparams/armelf_linux_fdpiceabi.sh Normal file
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@ -0,0 +1,13 @@
. ${srcdir}/emulparams/armelf_linux.sh
OUTPUT_FORMAT="elf32-littlearm-fdpic"
BIG_OUTPUT_FORMAT="elf32-bigarm-fdpic"
LITTLE_OUTPUT_FORMAT="elf32-littlearm-fdpic"
# Use the ARM ABI-compliant exception-handling sections.
OTHER_READONLY_SECTIONS="
.ARM.extab ${RELOCATING-0} : { *(.ARM.extab${RELOCATING+* .gnu.linkonce.armextab.*}) }
${RELOCATING+ PROVIDE_HIDDEN (__exidx_start = .); }
.ARM.exidx ${RELOCATING-0} : { *(.ARM.exidx${RELOCATING+* .gnu.linkonce.armexidx.*}) }
${RELOCATING+ PROVIDE_HIDDEN (__exidx_end = .); }"

2
ld/emulparams/armelfb_linux_fdpiceabi.sh Normal file
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@ -0,0 +1,2 @@
. ${srcdir}/emulparams/armelf_linux_fdpiceabi.sh
OUTPUT_FORMAT="elf32-bigarm-fdpic"