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blackfin: add support for L1 code/data flags 

Add new linker options for marking programs to load into L1 memory
at runtime.  This needs new EF flag bits, so declare them.

Signed-off-by: Jie Zhang <jie.zhang@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
This commit is contained in:
Mike Frysinger 2010-11-15 22:30:47 +00:00
parent c85f715a62
commit 781303cee5
11 changed files with 70 additions and 6 deletions
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7
bfd/ChangeLog
View File

@ -1,3 +1,10 @@
2010-11-16 Jie Zhang <jie.zhang@analog.com>
* elf32-bfin.c (elf32_bfin_code_in_l1): New variable.
(elf32_bfin_data_in_l1): New variable.
(elf32_bfin_final_write_processing): New.
(elf_backend_final_write_processing): Define.
2010-11-15 Mike Frysinger <vapier@gentoo.org>
PR binutils/12177

18
bfd/elf32-bfin.c
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@ -1120,6 +1120,22 @@ bfin_reloc_type_lookup (bfd * abfd ATTRIBUTE_UNUSED,
return (reloc_howto_type *) NULL;
}
/* Set by ld emulation if --code-in-l1. */
bfd_boolean elf32_bfin_code_in_l1 = 0;
/* Set by ld emulation if --data-in-l1. */
bfd_boolean elf32_bfin_data_in_l1 = 0;
static void
elf32_bfin_final_write_processing (bfd *abfd,
bfd_boolean linker ATTRIBUTE_UNUSED)
{
if (elf32_bfin_code_in_l1)
elf_elfheader (abfd)->e_flags |= EF_BFIN_CODE_IN_L1;
if (elf32_bfin_data_in_l1)
elf_elfheader (abfd)->e_flags |= EF_BFIN_DATA_IN_L1;
}
/* Return TRUE if the name is a local label.
bfin local labels begin with L$. */
static bfd_boolean
@ -5787,6 +5803,8 @@ struct bfd_elf_special_section const elf32_bfin_special_sections[] =
elf32_bfin_set_private_flags
#define bfd_elf32_bfd_print_private_bfd_data \
elf32_bfin_print_private_bfd_data
#define elf_backend_final_write_processing \
elf32_bfin_final_write_processing
#define elf_backend_reloc_type_class elf32_bfin_reloc_type_class
#define elf_backend_can_gc_sections 1
#define elf_backend_special_sections elf32_bfin_special_sections

4
binutils/ChangeLog
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@ -1,3 +1,7 @@
2010-11-16 Jie Zhang <jie.zhang@analog.com>
* readelf.c (get_machine_flags): Deal with Blackfin specific flags.
2010-11-11 Mingming Sun <mingm.sun@gmail.com>
* readelf.c (get_machine_flags): Add loongson-3a.

15
binutils/readelf.c
View File

@ -2238,6 +2238,21 @@ get_machine_flags (unsigned e_flags, unsigned e_machine)
decode_ARM_machine_flags (e_flags, buf);
break;
case EM_BLACKFIN:
if (e_flags & EF_BFIN_PIC)
strcat (buf, ", PIC");
if (e_flags & EF_BFIN_FDPIC)
strcat (buf, ", FDPIC");
if (e_flags & EF_BFIN_CODE_IN_L1)
strcat (buf, ", code in L1");
if (e_flags & EF_BFIN_DATA_IN_L1)
strcat (buf, ", data in L1");
break;
case EM_CYGNUS_FRV:
switch (e_flags & EF_FRV_CPU_MASK)
{

5
include/ChangeLog
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@ -1,3 +1,8 @@
2010-11-16 Jie Zhang <jie.zhang@analog.com>
* elf/bfin.h (EF_BFIN_CODE_IN_L1): Define.
(EF_BFIN_DATA_IN_L1): Define.
2010-11-04 Ian Lance Taylor <iant@google.com>
* dwarf2.h (enum dwarf_source_language): Add DW_LANG_Go.

3
include/elf/bfin.h
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@ -88,5 +88,8 @@ END_RELOC_NUMBERS (R_BFIN_max)
#define EF_BFIN_PIC 0x00000001 /* -fpic */
#define EF_BFIN_FDPIC 0x00000002 /* -mfdpic */
#define EF_BFIN_CODE_IN_L1 0x00000010 /* --code-in-l1 */
#define EF_BFIN_DATA_IN_L1 0x00000020 /* --data-in-l1 */
#define EF_BFIN_PIC_FLAGS (EF_BFIN_PIC | EF_BFIN_FDPIC)
#endif /* _ELF_BFIN_H */

8
ld/ChangeLog
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@ -1,3 +1,11 @@
2010-11-16 Jie Zhang <jie.zhang@analog.com>
* Makefile.am (eelf32bfinfd.c, eelf32bfin.c): Depend on bfin.em.
* Makefile.in: Regenerated.
* emulparams/bfin.sh (EXTRA_EM_FILE): Set.
* emulparams/elf32bfinfd.sh (EXTRA_EM_FILE): Likewise.
* emultempl/bfin.em: New.
2010-11-16 Yasuaki Taniguchi <taniguchi.yasua@jp.fujitsu.com>
* emultempl/pe.em (_list_options): Correct typo.

7
ld/Makefile.am
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@ -791,11 +791,12 @@ edelta68.c: $(srcdir)/emulparams/delta68.sh \
$(srcdir)/emultempl/generic.em $(srcdir)/scripttempl/delta68.sc ${GEN_DEPENDS}
${GENSCRIPTS} delta68 "$(tdir_delta68)"
eelf32bfin.c: $(srcdir)/emulparams/bfin.sh \
$(ELF_DEPS) \
$(ELF_DEPS) $(srcdir)/emultempl/bfin.em \
$(srcdir)/scripttempl/elf.sc ${GEN_DEPENDS}
${GENSCRIPTS} elf32bfin "$(tdir_elf32bfin)" bfin
eelf32bfinfd.c: $(srcdir)/emulparams/elf32bfinfd.sh $(srcdir)/emulparams/bfin.sh \
$(ELF_DEPS) \
eelf32bfinfd.c: $(srcdir)/emulparams/elf32bfinfd.sh \
$(srcdir)/emulparams/bfin.sh \
$(ELF_DEPS) $(srcdir)/emultempl/bfin.em \
$(srcdir)/scripttempl/elf.sc ${GEN_DEPENDS}
${GENSCRIPTS} elf32bfinfd "$(tdir_elf32bfinfd)" elf32bfinfd
eelf32_dlx.c: $(srcdir)/emulparams/elf32_dlx.sh \

7
ld/Makefile.in
View File

@ -2214,11 +2214,12 @@ edelta68.c: $(srcdir)/emulparams/delta68.sh \
$(srcdir)/emultempl/generic.em $(srcdir)/scripttempl/delta68.sc ${GEN_DEPENDS}
${GENSCRIPTS} delta68 "$(tdir_delta68)"
eelf32bfin.c: $(srcdir)/emulparams/bfin.sh \
$(ELF_DEPS) \
$(ELF_DEPS) $(srcdir)/emultempl/bfin.em \
$(srcdir)/scripttempl/elf.sc ${GEN_DEPENDS}
${GENSCRIPTS} elf32bfin "$(tdir_elf32bfin)" bfin
eelf32bfinfd.c: $(srcdir)/emulparams/elf32bfinfd.sh $(srcdir)/emulparams/bfin.sh \
$(ELF_DEPS) \
eelf32bfinfd.c: $(srcdir)/emulparams/elf32bfinfd.sh \
$(srcdir)/emulparams/bfin.sh \
$(ELF_DEPS) $(srcdir)/emultempl/bfin.em \
$(srcdir)/scripttempl/elf.sc ${GEN_DEPENDS}
${GENSCRIPTS} elf32bfinfd "$(tdir_elf32bfinfd)" elf32bfinfd
eelf32_dlx.c: $(srcdir)/emulparams/elf32_dlx.sh \

1
ld/emulparams/bfin.sh
View File

@ -9,3 +9,4 @@ TEMPLATE_NAME=elf32
GENERATE_SHLIB_SCRIPT=yes
EMBEDDED=yes
USER_LABEL_PREFIX=_
EXTRA_EM_FILE=bfin

1
ld/emulparams/elf32bfinfd.sh
View File

@ -43,3 +43,4 @@ OTHER_SECTIONS="
*(.l1.text)
}
"
EXTRA_EM_FILE=bfin