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authorHans-Peter Nilsson <hp@axis.com>2004-11-04 14:58:13 +0000
committerHans-Peter Nilsson <hp@axis.com>2004-11-04 14:58:13 +0000
commitbac23f82ae51ce67cf2d2e0ce4e2e222413efadc (patch)
tree152e46a798bc588e0a5798e53dd527e03540375e /bfd
parentbd21e58e631f4320cd48921034fdcabfdbd1c943 (diff)
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* config.bfd: Support crisv32-*-* like cris-*-*.
* archures.c (bfd_mach_cris_v0_v10, bfd_mach_cris_v32) (bfd_mach_cris_v10_v32): New macros. * cpu-cris.c: Tweak formatting. (get_compatible): New function. (N): New macro. (bfd_cris_arch_compat_v10_v32, bfd_cris_arch_v32): New bfd_arch_info_type:s. (bfd_cris_arch): Use bfd_mach_cris_v0_v10 for member mach, get_compatible for member compatible and link bfd_cris_arch_v32 as next. * elf32-cris.c (cris_elf_pcrel_reloc) (cris_elf_set_mach_from_flags): New functions. (cris_elf_howto_table) <R_CRIS_8_PCREL, R_CRIS_16_PCREL> <R_CRIS_32_PCREL>: Use cris_elf_pcrel_reloc. (cris_elf_grok_prstatus, cris_elf_grok_psinfo): Give correct numbers for bfd_mach_cris_v32. (PLT_ENTRY_SIZE_V32): New macro. (elf_cris_plt0_entry): Drop last comma in initializer. (elf_cris_plt0_entry_v32, elf_cris_plt_entry_v32) (elf_cris_pic_plt0_entry_v32, elf_cris_pic_plt_entry_v32): New PLT initializers. (cris_elf_relocate_section): Change all "%B(%A)" messages to "%B, section %A". (elf_cris_finish_dynamic_symbol): Do V32-specific PLT entries. (elf_cris_finish_dynamic_sections): Similar. (elf_cris_adjust_dynamic_symbol): Similar. (cris_elf_check_relocs): Change all "%B(%A)" messages to "%B, section %A". <switch with PIC relocs>: Emit error and return FALSE for bfd_mach_cris_v10_v32. <case R_CRIS_8_PCREL, case R_CRIS_16_PCREL, case R_CRIS_32_PCREL>: Emit warning when generating textrel reloc. (cris_elf_object_p): Call cris_elf_set_mach_from_flags. (cris_elf_final_write_processing): Set flags according to mach. (cris_elf_print_private_bfd_data): Display EF_CRIS_VARIANT_COMMON_V10_V32 and EF_CRIS_VARIANT_V32. (cris_elf_merge_private_bfd_data): Drop variables old_flags, new_flags. Don't call cris_elf_final_write_processing. Don't look at the actual elf header flags at all; use bfd_get_symbol_leading_char to check ibfd, obfd. Trap difference in bfd_get_mach for ibfd and obfd and handle merging of compatible objects. (bfd_elf32_bfd_copy_private_bfd_data): Define. * reloc.c (BFD_RELOC_CRIS_SIGNED_8, BFD_RELOC_CRIS_UNSIGNED_8) (BFD_RELOC_CRIS_SIGNED_16, BFD_RELOC_CRIS_UNSIGNED_16) (BFD_RELOC_CRIS_LAPCQ_OFFSET): New relocs. * bfd-in2.h, libbfd.h: Regenerate.
Diffstat (limited to 'bfd')
-rw-r--r--bfd/ChangeLog51
-rw-r--r--bfd/archures.c3
-rw-r--r--bfd/bfd-in2.h8
-rw-r--r--bfd/config.bfd3
-rw-r--r--bfd/cpu-cris.c66
-rw-r--r--bfd/elf32-cris.c454
-rw-r--r--bfd/libbfd.h5
-rw-r--r--bfd/reloc.c10
8 files changed, 531 insertions, 69 deletions
diff --git a/bfd/ChangeLog b/bfd/ChangeLog
index e2e79d0..444f905 100644
--- a/bfd/ChangeLog
+++ b/bfd/ChangeLog
@@ -1,3 +1,54 @@
+2004-11-04 Hans-Peter Nilsson <hp@axis.com>
+
+ * config.bfd: Support crisv32-*-* like cris-*-*.
+ * archures.c (bfd_mach_cris_v0_v10, bfd_mach_cris_v32)
+ (bfd_mach_cris_v10_v32): New macros.
+ * cpu-cris.c: Tweak formatting.
+ (get_compatible): New function.
+ (N): New macro.
+ (bfd_cris_arch_compat_v10_v32, bfd_cris_arch_v32): New
+ bfd_arch_info_type:s.
+ (bfd_cris_arch): Use bfd_mach_cris_v0_v10 for member mach,
+ get_compatible for member compatible and link bfd_cris_arch_v32 as
+ next.
+ * elf32-cris.c (cris_elf_pcrel_reloc)
+ (cris_elf_set_mach_from_flags): New functions.
+ (cris_elf_howto_table) <R_CRIS_8_PCREL, R_CRIS_16_PCREL>
+ <R_CRIS_32_PCREL>: Use cris_elf_pcrel_reloc.
+ (cris_elf_grok_prstatus, cris_elf_grok_psinfo): Give correct
+ numbers for bfd_mach_cris_v32.
+ (PLT_ENTRY_SIZE_V32): New macro.
+ (elf_cris_plt0_entry): Drop last comma in initializer.
+ (elf_cris_plt0_entry_v32, elf_cris_plt_entry_v32)
+ (elf_cris_pic_plt0_entry_v32, elf_cris_pic_plt_entry_v32): New
+ PLT initializers.
+ (cris_elf_relocate_section): Change all "%B(%A)" messages to
+ "%B, section %A".
+ (elf_cris_finish_dynamic_symbol): Do V32-specific PLT entries.
+ (elf_cris_finish_dynamic_sections): Similar.
+ (elf_cris_adjust_dynamic_symbol): Similar.
+ (cris_elf_check_relocs): Change all "%B(%A)" messages to "%B,
+ section %A".
+ <switch with PIC relocs>: Emit error and return FALSE for
+ bfd_mach_cris_v10_v32.
+ <case R_CRIS_8_PCREL, case R_CRIS_16_PCREL, case R_CRIS_32_PCREL>:
+ Emit warning when generating textrel reloc.
+ (cris_elf_object_p): Call cris_elf_set_mach_from_flags.
+ (cris_elf_final_write_processing): Set flags according to mach.
+ (cris_elf_print_private_bfd_data): Display
+ EF_CRIS_VARIANT_COMMON_V10_V32 and EF_CRIS_VARIANT_V32.
+ (cris_elf_merge_private_bfd_data): Drop variables old_flags,
+ new_flags. Don't call cris_elf_final_write_processing. Don't
+ look at the actual elf header flags at all; use
+ bfd_get_symbol_leading_char to check ibfd, obfd. Trap difference
+ in bfd_get_mach for ibfd and obfd and handle merging of compatible
+ objects.
+ (bfd_elf32_bfd_copy_private_bfd_data): Define.
+ * reloc.c (BFD_RELOC_CRIS_SIGNED_8, BFD_RELOC_CRIS_UNSIGNED_8)
+ (BFD_RELOC_CRIS_SIGNED_16, BFD_RELOC_CRIS_UNSIGNED_16)
+ (BFD_RELOC_CRIS_LAPCQ_OFFSET): New relocs.
+ * bfd-in2.h, libbfd.h: Regenerate.
+
2004-11-04 Alan Modra <amodra@bigpond.net.au>
* elf64-ppc.h (ppc64_elf_edit_toc): Declare.
diff --git a/bfd/archures.c b/bfd/archures.c
index 4904b62..c8375bb 100644
--- a/bfd/archures.c
+++ b/bfd/archures.c
@@ -323,6 +323,9 @@ DESCRIPTION
. bfd_arch_crx, {* National Semiconductor CRX. *}
.#define bfd_mach_crx 1
. bfd_arch_cris, {* Axis CRIS *}
+.#define bfd_mach_cris_v0_v10 255
+.#define bfd_mach_cris_v32 32
+.#define bfd_mach_cris_v10_v32 1032
. bfd_arch_s390, {* IBM s390 *}
.#define bfd_mach_s390_31 31
.#define bfd_mach_s390_64 64
diff --git a/bfd/bfd-in2.h b/bfd/bfd-in2.h
index a25bef3..0ee36a7 100644
--- a/bfd/bfd-in2.h
+++ b/bfd/bfd-in2.h
@@ -1774,6 +1774,9 @@ enum bfd_architecture
bfd_arch_crx, /* National Semiconductor CRX. */
#define bfd_mach_crx 1
bfd_arch_cris, /* Axis CRIS */
+#define bfd_mach_cris_v0_v10 255
+#define bfd_mach_cris_v32 32
+#define bfd_mach_cris_v10_v32 1032
bfd_arch_s390, /* IBM s390 */
#define bfd_mach_s390_31 31
#define bfd_mach_s390_64 64
@@ -3508,6 +3511,11 @@ This is the 5 bits of a value. */
BFD_RELOC_CRIS_UNSIGNED_5,
BFD_RELOC_CRIS_SIGNED_6,
BFD_RELOC_CRIS_UNSIGNED_6,
+ BFD_RELOC_CRIS_SIGNED_8,
+ BFD_RELOC_CRIS_UNSIGNED_8,
+ BFD_RELOC_CRIS_SIGNED_16,
+ BFD_RELOC_CRIS_UNSIGNED_16,
+ BFD_RELOC_CRIS_LAPCQ_OFFSET,
BFD_RELOC_CRIS_UNSIGNED_4,
/* Relocs used in ELF shared libraries for CRIS. */
diff --git a/bfd/config.bfd b/bfd/config.bfd
index 2e137b2..fe668c3 100644
--- a/bfd/config.bfd
+++ b/bfd/config.bfd
@@ -54,6 +54,7 @@ arm*) targ_archs=bfd_arm_arch ;;
c30*) targ_archs=bfd_tic30_arch ;;
c4x*) targ_archs=bfd_tic4x_arch ;;
c54x*) targ_archs=bfd_tic54x_arch ;;
+crisv32) targ_archs=bfd_cris_arch ;;
crx*) targ_archs=bfd_crx_arch ;;
dlx*) targ_archs=bfd_dlx_arch ;;
hppa*) targ_archs=bfd_hppa_arch ;;
@@ -326,7 +327,7 @@ case "${targ}" in
targ_underscore=yes
;;
- cris-*-*)
+ cris-*-* | crisv32-*-*)
targ_defvec=cris_aout_vec
targ_selvecs="bfd_elf32_us_cris_vec bfd_elf32_cris_vec ieee_vec"
targ_underscore=yes # Note: not true for bfd_elf32_cris_vec.
diff --git a/bfd/cpu-cris.c b/bfd/cpu-cris.c
index 9e60ff0..d15a275 100644
--- a/bfd/cpu-cris.c
+++ b/bfd/cpu-cris.c
@@ -23,8 +23,58 @@ Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
#include "sysdep.h"
#include "libbfd.h"
-const bfd_arch_info_type
-bfd_cris_arch =
+/* This routine is provided two arch_infos and returns the lowest common
+ denominator. CRIS v0..v10 vs. v32 are not compatible in general, but
+ there's a compatible subset for which we provide an arch_info. */
+
+static const bfd_arch_info_type * get_compatible
+ PARAMS ((const bfd_arch_info_type *, const bfd_arch_info_type *));
+
+static const bfd_arch_info_type *
+get_compatible (a,b)
+ const bfd_arch_info_type *a;
+ const bfd_arch_info_type *b;
+{
+ /* Arches must match. */
+ if (a->arch != b->arch)
+ return NULL;
+
+ /* If either is the compatible mach, return the other. */
+ if (a->mach == bfd_mach_cris_v10_v32)
+ return b;
+ if (b->mach == bfd_mach_cris_v10_v32)
+ return a;
+
+#if 0
+ /* See ldlang.c:lang_check. Quite illogically, incompatible arches
+ (as signalled by this function) are only *warned* about, while with
+ this function signalling compatible ones, we can have the
+ cris_elf_merge_private_bfd_data function return an error. This is
+ undoubtedly a FIXME: in general. Also, the
+ command_line.warn_mismatch flag and the --no-warn-mismatch option
+ are misnamed for the multitude of ports that signal compatibility:
+ it is there an error, not a warning. We work around it by
+ pretending matching machs here. */
+
+ /* Except for the compatible mach, machs must match. */
+ if (a->mach != b->mach)
+ return NULL;
+#endif
+
+ return a;
+}
+
+#define N(NUMBER, PRINT, NEXT) \
+ { 32, 32, 8, bfd_arch_cris, NUMBER, "cris", PRINT, 1, FALSE, \
+ get_compatible, bfd_default_scan, NEXT }
+
+static const bfd_arch_info_type bfd_cris_arch_compat_v10_v32 =
+ N (bfd_mach_cris_v10_v32, "cris:common_v10_v32", NULL);
+
+static const bfd_arch_info_type bfd_cris_arch_v32 =
+ N (bfd_mach_cris_v32, "crisv32", &bfd_cris_arch_compat_v10_v32);
+
+const bfd_arch_info_type bfd_cris_arch =
{
32, /* There's 32 bits_per_word. */
32, /* There's 32 bits_per_address. */
@@ -32,20 +82,20 @@ bfd_cris_arch =
bfd_arch_cris, /* One of enum bfd_architecture, defined
in archures.c and provided in
generated header files. */
- 0xff, /* Only 1 machine, but #255 for
- historical reasons. */
+ bfd_mach_cris_v0_v10, /* Random BFD-internal number for this
+ machine, similarly listed in
+ archures.c. Not emitted in output. */
"cris", /* The arch_name. */
"cris", /* The printable name is the same. */
1, /* Section alignment power; each section
is aligned to (only) 2^1 bytes. */
- TRUE, /* This is the default "machine", since
- there's only one. */
- bfd_default_compatible, /* A default function for testing
+ TRUE, /* This is the default "machine". */
+ get_compatible, /* A function for testing
"machine" compatibility of two
bfd_arch_info_type. */
bfd_default_scan, /* Check if a bfd_arch_info_type is a
match. */
- NULL /* Pointer to next bfd_arch_info_type in
+ &bfd_cris_arch_v32 /* Pointer to next bfd_arch_info_type in
the same family. */
};
diff --git a/bfd/elf32-cris.c b/bfd/elf32-cris.c
index ad93071..d043111 100644
--- a/bfd/elf32-cris.c
+++ b/bfd/elf32-cris.c
@@ -33,6 +33,9 @@ static reloc_howto_type * cris_reloc_type_lookup
static void cris_info_to_howto_rela
PARAMS ((bfd *, arelent *, Elf_Internal_Rela *));
+static bfd_reloc_status_type cris_elf_pcrel_reloc
+ PARAMS ((bfd *, arelent *, asymbol *, PTR, asection *, bfd *, char **));
+
static bfd_boolean cris_elf_grok_prstatus
PARAMS ((bfd *abfd, Elf_Internal_Note *note));
@@ -59,9 +62,13 @@ static bfd_boolean cris_elf_object_p PARAMS ((bfd *));
static void cris_elf_final_write_processing PARAMS ((bfd *, bfd_boolean));
+static bfd_boolean cris_elf_set_mach_from_flags
+ PARAMS ((bfd *, unsigned long int));
+
static bfd_boolean cris_elf_print_private_bfd_data PARAMS ((bfd *, PTR));
static bfd_boolean cris_elf_merge_private_bfd_data PARAMS ((bfd *, bfd *));
+static bfd_boolean cris_elf_copy_private_bfd_data PARAMS ((bfd *, bfd *));
struct elf_cris_link_hash_entry;
static bfd_boolean elf_cris_discard_excess_dso_dynamics
@@ -164,7 +171,7 @@ static reloc_howto_type cris_elf_howto_table [] =
TRUE, /* pc_relative */
0, /* bitpos */
complain_overflow_bitfield, /* complain_on_overflow */
- bfd_elf_generic_reloc, /* special_function */
+ cris_elf_pcrel_reloc, /* special_function */
"R_CRIS_8_PCREL", /* name */
FALSE, /* partial_inplace */
0x0000, /* src_mask */
@@ -179,7 +186,7 @@ static reloc_howto_type cris_elf_howto_table [] =
TRUE, /* pc_relative */
0, /* bitpos */
complain_overflow_bitfield, /* complain_on_overflow */
- bfd_elf_generic_reloc, /* special_function */
+ cris_elf_pcrel_reloc, /* special_function */
"R_CRIS_16_PCREL", /* name */
FALSE, /* partial_inplace */
0x00000000, /* src_mask */
@@ -194,7 +201,7 @@ static reloc_howto_type cris_elf_howto_table [] =
TRUE, /* pc_relative */
0, /* bitpos */
complain_overflow_bitfield, /* complain_on_overflow */
- bfd_elf_generic_reloc, /* special_function */
+ cris_elf_pcrel_reloc, /* special_function */
"R_CRIS_32_PCREL", /* name */
FALSE, /* partial_inplace */
0x00000000, /* src_mask */
@@ -398,7 +405,7 @@ static reloc_howto_type cris_elf_howto_table [] =
TRUE, /* pc_relative */
0, /* bitpos */
complain_overflow_bitfield, /* complain_on_overflow */
- bfd_elf_generic_reloc, /* special_function */
+ cris_elf_pcrel_reloc, /* special_function */
"R_CRIS_32_PLT_PCREL", /* name */
FALSE, /* partial_inplace */
0, /* src_mask */
@@ -466,8 +473,39 @@ cris_info_to_howto_rela (abfd, cache_ptr, dst)
BFD_ASSERT (r_type < (unsigned int) R_CRIS_max);
cache_ptr->howto = & cris_elf_howto_table [r_type];
}
+
+bfd_reloc_status_type
+cris_elf_pcrel_reloc (abfd, reloc_entry, symbol, data, input_section,
+ output_bfd, error_message)
+ bfd *abfd ATTRIBUTE_UNUSED;
+ arelent *reloc_entry;
+ asymbol *symbol;
+ PTR data ATTRIBUTE_UNUSED;
+ asection *input_section;
+ bfd *output_bfd;
+ char **error_message ATTRIBUTE_UNUSED;
+{
+ /* By default (using only bfd_elf_generic_reloc when linking to
+ non-ELF formats) PC-relative relocs are relative to the beginning
+ of the reloc. CRIS PC-relative relocs are relative to the position
+ *after* the reloc because that's what pre-CRISv32 PC points to
+ after reading an insn field with that reloc. (For CRISv32, PC is
+ actually relative to the start of the insn, but we keep the old
+ definition.) Still, we use as much generic machinery as we can.
+
+ Only adjust when doing a final link. */
+ if (output_bfd == (bfd *) NULL)
+ reloc_entry->addend -= 1 << reloc_entry->howto->size;
+
+ return
+ bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data,
+ input_section, output_bfd, error_message);
+}
-/* Support for core dump NOTE sections. */
+/* Support for core dump NOTE sections.
+ The slightly unintuitive code layout is an attempt to keep at least
+ some similarities with other ports, hoping to simplify general
+ changes, while still keeping Linux/CRIS and Linux/CRISv32 code apart. */
static bfd_boolean
cris_elf_grok_prstatus (abfd, note)
@@ -477,8 +515,28 @@ cris_elf_grok_prstatus (abfd, note)
int offset;
size_t size;
- switch (note->descsz)
- {
+ if (bfd_get_mach (abfd) == bfd_mach_cris_v32)
+ switch (note->descsz)
+ {
+ default:
+ return FALSE;
+
+ case 202: /* Linux/CRISv32 */
+ /* pr_cursig */
+ elf_tdata (abfd)->core_signal = bfd_get_16 (abfd, note->descdata + 12);
+
+ /* pr_pid */
+ elf_tdata (abfd)->core_pid = bfd_get_32 (abfd, note->descdata + 22);
+
+ /* pr_reg */
+ offset = 70;
+ size = 128;
+
+ break;
+ }
+ else
+ switch (note->descsz)
+ {
default:
return FALSE;
@@ -494,7 +552,7 @@ cris_elf_grok_prstatus (abfd, note)
size = 140;
break;
- }
+ }
/* Make a ".reg/999" section. */
return _bfd_elfcore_make_pseudosection (abfd, ".reg",
@@ -506,17 +564,30 @@ cris_elf_grok_psinfo (abfd, note)
bfd *abfd;
Elf_Internal_Note *note;
{
- switch (note->descsz)
- {
+ if (bfd_get_mach (abfd) == bfd_mach_cris_v32)
+ switch (note->descsz)
+ {
+ default:
+ return FALSE;
+
+ case 124: /* Linux/CRISv32 elf_prpsinfo */
+ elf_tdata (abfd)->core_program
+ = _bfd_elfcore_strndup (abfd, note->descdata + 28, 16);
+ elf_tdata (abfd)->core_command
+ = _bfd_elfcore_strndup (abfd, note->descdata + 44, 80);
+ }
+ else
+ switch (note->descsz)
+ {
default:
return FALSE;
case 124: /* Linux/CRIS elf_prpsinfo */
elf_tdata (abfd)->core_program
- = _bfd_elfcore_strndup (abfd, note->descdata + 28, 16);
+ = _bfd_elfcore_strndup (abfd, note->descdata + 28, 16);
elf_tdata (abfd)->core_command
- = _bfd_elfcore_strndup (abfd, note->descdata + 44, 80);
- }
+ = _bfd_elfcore_strndup (abfd, note->descdata + 44, 80);
+ }
/* Note that for some reason, a spurious space is tacked
onto the end of the args in some (at least one anyway)
@@ -541,6 +612,7 @@ cris_elf_grok_psinfo (abfd, note)
/* The size in bytes of an entry in the procedure linkage table. */
#define PLT_ENTRY_SIZE 20
+#define PLT_ENTRY_SIZE_V32 26
/* The first entry in an absolute procedure linkage table looks like this. */
@@ -553,7 +625,21 @@ static const bfd_byte elf_cris_plt0_entry[PLT_ENTRY_SIZE] =
0x30, 0x7a, /* move [...],mof */
0x7f, 0x0d, /* (dip [pc+]) */
0, 0, 0, 0, /* Replaced with address of .got + 8. */
- 0x30, 0x09, /* jump [...] */
+ 0x30, 0x09 /* jump [...] */
+};
+
+static const bfd_byte elf_cris_plt0_entry_v32[PLT_ENTRY_SIZE_V32] =
+{
+ 0x84, 0xe2, /* subq 4,$sp */
+ 0x6f, 0xfe, /* move.d 0,$acr */
+ 0, 0, 0, 0, /* Replaced by address of .got + 4. */
+ 0x7e, 0x7a, /* move $mof,[$sp] */
+ 0x3f, 0x7a, /* move [$acr],$mof */
+ 0x04, 0xf2, /* addq 4,acr */
+ 0x6f, 0xfa, /* move.d [$acr],$acr */
+ 0xbf, 0x09, /* jump $acr */
+ 0xb0, 0x05, /* nop */
+ 0, 0 /* Pad out to 26 bytes. */
};
/* Subsequent entries in an absolute procedure linkage table look like
@@ -571,6 +657,20 @@ static const bfd_byte elf_cris_plt_entry[PLT_ENTRY_SIZE] =
0xff, 0xff /* Replaced with offset to start of .plt. */
};
+static const bfd_byte elf_cris_plt_entry_v32[PLT_ENTRY_SIZE_V32] =
+{
+ 0x6f, 0xfe, /* move.d 0,$acr */
+ 0, 0, 0, 0, /* Replaced with address of this symbol in .got. */
+ 0x6f, 0xfa, /* move.d [$acr],$acr */
+ 0xbf, 0x09, /* jump $acr */
+ 0xb0, 0x05, /* nop */
+ 0x3f, 0x7e, /* move 0,mof */
+ 0, 0, 0, 0, /* Replaced with offset into relocation table. */
+ 0xbf, 0x0e, /* ba start_of_plt0_entry */
+ 0, 0, 0, 0, /* Replaced with offset to plt0 entry. */
+ 0xb0, 0x05 /* nop */
+};
+
/* The first entry in a PIC procedure linkage table looks like this. */
static const bfd_byte elf_cris_pic_plt0_entry[PLT_ENTRY_SIZE] =
@@ -581,6 +681,21 @@ static const bfd_byte elf_cris_pic_plt0_entry[PLT_ENTRY_SIZE] =
0, 0, 0, 0, 0, 0, 0, 0, /* Pad out to 20 bytes. */
};
+static const bfd_byte elf_cris_pic_plt0_entry_v32[PLT_ENTRY_SIZE_V32] =
+{
+ 0x84, 0xe2, /* subq 4,$sp */
+ 0x04, 0x01, /* addoq 4,$r0,$acr */
+ 0x7e, 0x7a, /* move $mof,[$sp] */
+ 0x3f, 0x7a, /* move [$acr],$mof */
+ 0x04, 0xf2, /* addq 4,$acr */
+ 0x6f, 0xfa, /* move.d [$acr],$acr */
+ 0xbf, 0x09, /* jump $acr */
+ 0xb0, 0x05, /* nop */
+ 0, 0, /* Pad out to 26 bytes. */
+ 0, 0, 0, 0,
+ 0, 0, 0, 0
+};
+
/* Subsequent entries in a PIC procedure linkage table look like this. */
static const bfd_byte elf_cris_pic_plt_entry[PLT_ENTRY_SIZE] =
@@ -594,6 +709,20 @@ static const bfd_byte elf_cris_pic_plt_entry[PLT_ENTRY_SIZE] =
0xec, 0xff, /* Replaced with offset to start of .plt. */
0xff, 0xff
};
+
+static const bfd_byte elf_cris_pic_plt_entry_v32[PLT_ENTRY_SIZE_V32] =
+{
+ 0x6f, 0x0d, /* addo.d 0,$r0,$acr */
+ 0, 0, 0, 0, /* Replaced with offset of this symbol in .got. */
+ 0x6f, 0xfa, /* move.d [$acr],$acr */
+ 0xbf, 0x09, /* jump $acr */
+ 0xb0, 0x05, /* nop */
+ 0x3f, 0x7e, /* move relocoffs,$mof */
+ 0, 0, 0, 0, /* Replaced with offset into relocation table. */
+ 0xbf, 0x0e, /* ba start_of_plt */
+ 0, 0, 0, 0, /* Replaced with offset to start of .plt. */
+ 0xb0, 0x05 /* nop */
+};
/* We copy elf32-m68k.c and elf32-i386.c for the basic linker hash bits
(and most other PIC/shlib stuff). Check that we don't drift away
@@ -917,7 +1046,7 @@ cris_elf_relocate_section (output_bfd, info, input_bfd, input_section,
else if (unresolved_reloc)
{
_bfd_error_handler
- (_("%B(%A): unresolvable relocation %s against symbol `%s'"),
+ (_("%B, section %A: unresolvable relocation %s against symbol `%s'"),
input_bfd,
input_section,
cris_elf_howto_table[r_type].name,
@@ -972,9 +1101,9 @@ cris_elf_relocate_section (output_bfd, info, input_bfd, input_section,
{
(*_bfd_error_handler)
((h->got.offset == (bfd_vma) -1)
- ? _("%B(%A): No PLT nor GOT for relocation %s"
+ ? _("%B, section %A: No PLT nor GOT for relocation %s"
" against symbol `%s'")
- : _("%B(%A): No PLT for relocation %s"
+ : _("%B, section %A: No PLT for relocation %s"
" against symbol `%s'"),
input_bfd,
input_section,
@@ -1098,7 +1227,7 @@ cris_elf_relocate_section (output_bfd, info, input_bfd, input_section,
allowed to pass us these kinds of things. */
if (h == NULL)
(*_bfd_error_handler)
- (_("%B(%A): relocation %s with non-zero addend %d"
+ (_("%B, section %A: relocation %s with non-zero addend %d"
" against local symbol"),
input_bfd,
input_section,
@@ -1106,7 +1235,7 @@ cris_elf_relocate_section (output_bfd, info, input_bfd, input_section,
rel->r_addend);
else
(*_bfd_error_handler)
- (_("%B(%A): relocation %s with non-zero addend %d"
+ (_("%B, section %A: relocation %s with non-zero addend %d"
" against symbol `%s'"),
input_bfd,
input_section,
@@ -1132,7 +1261,8 @@ cris_elf_relocate_section (output_bfd, info, input_bfd, input_section,
&& h->root.type == bfd_link_hash_undefweak))))
{
(*_bfd_error_handler)
- (_("%B(%A): relocation %s is not allowed for global symbol: `%s'"),
+ (_("%B, section %A: relocation %s is"
+ " not allowed for global symbol: `%s'"),
input_bfd,
input_section,
cris_elf_howto_table[r_type].name,
@@ -1147,7 +1277,7 @@ cris_elf_relocate_section (output_bfd, info, input_bfd, input_section,
if (sgot == NULL)
{
(*_bfd_error_handler)
- (_("%B: relocation %s in section %A with no GOT created"),
+ (_("%B, section %A: relocation %s with no GOT created"),
input_bfd,
input_section,
cris_elf_howto_table[r_type].name);
@@ -1407,8 +1537,33 @@ elf_cris_finish_dynamic_symbol (output_bfd, info, h, sym)
Elf_Internal_Sym *sym;
{
bfd *dynobj;
+
+ /* Where in the plt entry to put values. */
int plt_off1 = 2, plt_off2 = 10, plt_off3 = 16;
+ /* What offset to add to the distance to the first PLT entry for the
+ value at plt_off3. */
+ int plt_off3_value_bias = 4;
+
+ /* Where in the PLT entry the call-dynlink-stub is (happens to be same
+ for PIC and non-PIC for v32 and pre-v32). */
+ int plt_stub_offset = 8;
+ int plt_entry_size = PLT_ENTRY_SIZE;
+ const bfd_byte *plt_entry = elf_cris_plt_entry;
+ const bfd_byte *plt_pic_entry = elf_cris_pic_plt_entry;
+
+ /* Adjust the various PLT entry offsets. */
+ if (bfd_get_mach (output_bfd) == bfd_mach_cris_v32)
+ {
+ plt_off2 = 14;
+ plt_off3 = 20;
+ plt_off3_value_bias = -2;
+ plt_stub_offset = 12;
+ plt_entry_size = PLT_ENTRY_SIZE_V32;
+ plt_entry = elf_cris_plt_entry_v32;
+ plt_pic_entry = elf_cris_pic_plt_entry_v32;
+ }
+
dynobj = elf_hash_table (info)->dynobj;
if (h->plt.offset != (bfd_vma) -1)
@@ -1460,8 +1615,8 @@ elf_cris_finish_dynamic_symbol (output_bfd, info, h, sym)
/* Fill in the entry in the procedure linkage table. */
if (! info->shared)
{
- memcpy (splt->contents + h->plt.offset, elf_cris_plt_entry,
- PLT_ENTRY_SIZE);
+ memcpy (splt->contents + h->plt.offset, plt_entry,
+ plt_entry_size);
/* We need to enter the absolute address of the GOT entry here. */
bfd_put_32 (output_bfd, got_base + got_offset,
@@ -1469,8 +1624,8 @@ elf_cris_finish_dynamic_symbol (output_bfd, info, h, sym)
}
else
{
- memcpy (splt->contents + h->plt.offset, elf_cris_pic_plt_entry,
- PLT_ENTRY_SIZE);
+ memcpy (splt->contents + h->plt.offset, plt_pic_entry,
+ plt_entry_size);
bfd_put_32 (output_bfd, got_offset,
splt->contents + h->plt.offset + plt_off1);
}
@@ -1479,13 +1634,14 @@ elf_cris_finish_dynamic_symbol (output_bfd, info, h, sym)
PLT entry. */
if (has_gotplt)
{
- /* Fill in the offset into the reloc table. */
+ /* Fill in the offset to the reloc table. */
bfd_put_32 (output_bfd,
gotplt_index * sizeof (Elf32_External_Rela),
splt->contents + h->plt.offset + plt_off2);
/* Fill in the offset to the first PLT entry, where to "jump". */
- bfd_put_32 (output_bfd, - (h->plt.offset + plt_off3 + 4),
+ bfd_put_32 (output_bfd,
+ - (h->plt.offset + plt_off3 + plt_off3_value_bias),
splt->contents + h->plt.offset + plt_off3);
/* Fill in the entry in the global offset table with the address of
@@ -1494,7 +1650,7 @@ elf_cris_finish_dynamic_symbol (output_bfd, info, h, sym)
(splt->output_section->vma
+ splt->output_offset
+ h->plt.offset
- + 8),
+ + plt_stub_offset),
sgotplt->contents + got_offset);
/* Fill in the entry in the .rela.plt section. */
@@ -1695,20 +1851,45 @@ elf_cris_finish_dynamic_sections (output_bfd, info)
/* Fill in the first entry in the procedure linkage table. */
if (splt->size > 0)
{
- if (info->shared)
- memcpy (splt->contents, elf_cris_pic_plt0_entry, PLT_ENTRY_SIZE);
+ if (bfd_get_mach (output_bfd) == bfd_mach_cris_v32)
+ {
+ if (info->shared)
+ memcpy (splt->contents, elf_cris_pic_plt0_entry_v32,
+ PLT_ENTRY_SIZE_V32);
+ else
+ {
+ memcpy (splt->contents, elf_cris_plt0_entry_v32,
+ PLT_ENTRY_SIZE_V32);
+ bfd_put_32 (output_bfd,
+ sgot->output_section->vma
+ + sgot->output_offset + 4,
+ splt->contents + 4);
+
+ elf_section_data (splt->output_section)->this_hdr.sh_entsize
+ = PLT_ENTRY_SIZE_V32;
+ }
+ }
else
- {
- memcpy (splt->contents, elf_cris_plt0_entry, PLT_ENTRY_SIZE);
- bfd_put_32 (output_bfd,
- sgot->output_section->vma + sgot->output_offset + 4,
- splt->contents + 6);
- bfd_put_32 (output_bfd,
- sgot->output_section->vma + sgot->output_offset + 8,
- splt->contents + 14);
-
- elf_section_data (splt->output_section)->this_hdr.sh_entsize
- = PLT_ENTRY_SIZE;
+ {
+ if (info->shared)
+ memcpy (splt->contents, elf_cris_pic_plt0_entry,
+ PLT_ENTRY_SIZE);
+ else
+ {
+ memcpy (splt->contents, elf_cris_plt0_entry,
+ PLT_ENTRY_SIZE);
+ bfd_put_32 (output_bfd,
+ sgot->output_section->vma
+ + sgot->output_offset + 4,
+ splt->contents + 6);
+ bfd_put_32 (output_bfd,
+ sgot->output_section->vma
+ + sgot->output_offset + 8,
+ splt->contents + 14);
+
+ elf_section_data (splt->output_section)->this_hdr.sh_entsize
+ = PLT_ENTRY_SIZE;
+ }
}
}
}
@@ -2018,6 +2199,7 @@ elf_cris_adjust_dynamic_symbol (info, h)
bfd *dynobj;
asection *s;
unsigned int power_of_two;
+ bfd_size_type plt_entry_size;
dynobj = elf_hash_table (info)->dynobj;
@@ -2029,6 +2211,10 @@ elf_cris_adjust_dynamic_symbol (info, h)
&& h->ref_regular
&& !h->def_regular)));
+ plt_entry_size
+ = (bfd_get_mach (dynobj) == bfd_mach_cris_v32
+ ? PLT_ENTRY_SIZE_V32 : PLT_ENTRY_SIZE);
+
/* If this is a function, put it in the procedure linkage table. We
will fill in the contents of the procedure linkage table later,
when we know the address of the .got section. */
@@ -2089,7 +2275,7 @@ elf_cris_adjust_dynamic_symbol (info, h)
/* If this is the first .plt entry, make room for the special
first entry. */
if (s->size == 0)
- s->size += PLT_ENTRY_SIZE;
+ s->size += plt_entry_size;
/* If this symbol is not defined in a regular file, and we are
not generating a shared library, then set the symbol to this
@@ -2113,8 +2299,8 @@ elf_cris_adjust_dynamic_symbol (info, h)
/* Mark the PLT offset to use the GOT entry by setting the low
bit in the plt offset; it is always a multiple of
- pointer-size. */
- BFD_ASSERT ((s->size & 3) == 0);
+ plt_entry_size (which is at least a multiple of 2). */
+ BFD_ASSERT ((s->size % plt_entry_size) == 0);
/* Change the PLT refcount to an offset. */
h->plt.offset = s->size;
@@ -2125,7 +2311,7 @@ elf_cris_adjust_dynamic_symbol (info, h)
h)->gotplt_offset == 0);
/* Make room for this entry. */
- s->size += PLT_ENTRY_SIZE;
+ s->size += plt_entry_size;
return TRUE;
}
@@ -2134,7 +2320,7 @@ elf_cris_adjust_dynamic_symbol (info, h)
h->plt.offset = s->size;
/* Make room for this entry. */
- s->size += PLT_ENTRY_SIZE;
+ s->size += plt_entry_size;
/* We also need to make an entry in the .got.plt section, which
will be placed in the .got section by the linker script. */
@@ -2305,6 +2491,18 @@ cris_elf_check_relocs (abfd, info, sec, relocs)
{
elf_hash_table (info)->dynobj = dynobj = abfd;
+ /* We could handle this if we can get a handle on the
+ output bfd in elf_cris_adjust_dynamic_symbol. Failing
+ that, we must insist on dynobj being a specific mach. */
+ if (bfd_get_mach (dynobj) == bfd_mach_cris_v10_v32)
+ {
+ (*_bfd_error_handler)
+ (_("%B, section %A:\n v10/v32 compatible object %s"
+ " must not contain a PIC relocation"),
+ abfd, sec);
+ return FALSE;
+ }
+
/* Create the .got section, so we can assume it's always
present whenever there's a dynobj. */
if (!_bfd_elf_create_got_section (dynobj, info))
@@ -2486,7 +2684,8 @@ cris_elf_check_relocs (abfd, info, sec, relocs)
{
/* FIXME: How do we make this optionally a warning only? */
(*_bfd_error_handler)
- (_("%B, section %A:\n relocation %s should not be used in a shared object; recompile with -fPIC"),
+ (_("%B, section %A:\n relocation %s should not"
+ " be used in a shared object; recompile with -fPIC"),
abfd,
sec,
cris_elf_howto_table[r_type].name);
@@ -2548,6 +2747,17 @@ cris_elf_check_relocs (abfd, info, sec, relocs)
&& h->root.type != bfd_link_hash_defweak
&& h->def_regular)
break;
+
+ if ((sec->flags & SEC_READONLY) != 0)
+ {
+ /* FIXME: How do we make this optionally a warning only? */
+ (*_bfd_error_handler)
+ (_("%B, section %A:\n relocation %s should not be used"
+ " in a shared object; recompile with -fPIC"),
+ abfd,
+ sec,
+ cris_elf_howto_table[r_type].name);
+ }
}
/* We create a reloc section in dynobj and make room for this
@@ -2932,23 +3142,81 @@ static bfd_boolean
cris_elf_object_p (abfd)
bfd *abfd;
{
+ if (! cris_elf_set_mach_from_flags (abfd, elf_elfheader (abfd)->e_flags))
+ return FALSE;
+
if ((elf_elfheader (abfd)->e_flags & EF_CRIS_UNDERSCORE))
return (bfd_get_symbol_leading_char (abfd) == '_');
else
return (bfd_get_symbol_leading_char (abfd) == 0);
}
-/* Mark presence or absence of leading underscore. */
+/* Mark presence or absence of leading underscore. Set machine type
+ flags from mach type. */
static void
cris_elf_final_write_processing (abfd, linker)
bfd *abfd;
bfd_boolean linker ATTRIBUTE_UNUSED;
{
+ unsigned long e_flags = elf_elfheader (abfd)->e_flags;
+
+ e_flags &= ~EF_CRIS_UNDERSCORE;
if (bfd_get_symbol_leading_char (abfd) == '_')
- elf_elfheader (abfd)->e_flags |= EF_CRIS_UNDERSCORE;
- else
- elf_elfheader (abfd)->e_flags &= ~EF_CRIS_UNDERSCORE;
+ e_flags |= EF_CRIS_UNDERSCORE;
+
+ switch (bfd_get_mach (abfd))
+ {
+ case bfd_mach_cris_v0_v10:
+ e_flags |= EF_CRIS_VARIANT_ANY_V0_V10;
+ break;
+
+ case bfd_mach_cris_v10_v32:
+ e_flags |= EF_CRIS_VARIANT_COMMON_V10_V32;
+ break;
+
+ case bfd_mach_cris_v32:
+ e_flags |= EF_CRIS_VARIANT_V32;
+ break;
+
+ default:
+ _bfd_abort (__FILE__, __LINE__,
+ _("Unexpected machine number"));
+ }
+
+ elf_elfheader (abfd)->e_flags = e_flags;
+}
+
+/* Set the mach type from e_flags value. */
+
+static bfd_boolean
+cris_elf_set_mach_from_flags (abfd, flags)
+ bfd *abfd;
+ unsigned long flags;
+{
+ switch (flags & EF_CRIS_VARIANT_MASK)
+ {
+ case EF_CRIS_VARIANT_ANY_V0_V10:
+ bfd_default_set_arch_mach (abfd, bfd_arch_cris, bfd_mach_cris_v0_v10);
+ break;
+
+ case EF_CRIS_VARIANT_V32:
+ bfd_default_set_arch_mach (abfd, bfd_arch_cris, bfd_mach_cris_v32);
+ break;
+
+ case EF_CRIS_VARIANT_COMMON_V10_V32:
+ bfd_default_set_arch_mach (abfd, bfd_arch_cris, bfd_mach_cris_v10_v32);
+ break;
+
+ default:
+ /* Since we don't recognize them, we obviously can't support them
+ with this code; we'd have to require that all future handling
+ would be optional. */
+ bfd_set_error (bfd_error_wrong_format);
+ return FALSE;
+ }
+
+ return TRUE;
}
/* Display the flags field. */
@@ -2968,6 +3236,12 @@ cris_elf_print_private_bfd_data (abfd, ptr)
if (elf_elfheader (abfd)->e_flags & EF_CRIS_UNDERSCORE)
fprintf (file, _(" [symbols have a _ prefix]"));
+ if ((elf_elfheader (abfd)->e_flags & EF_CRIS_VARIANT_MASK)
+ == EF_CRIS_VARIANT_COMMON_V10_V32)
+ fprintf (file, _(" [v10 and v32]"));
+ if ((elf_elfheader (abfd)->e_flags & EF_CRIS_VARIANT_MASK)
+ == EF_CRIS_VARIANT_V32)
+ fprintf (file, _(" [v32]"));
fputc ('\n', file);
return TRUE;
@@ -2980,7 +3254,7 @@ cris_elf_merge_private_bfd_data (ibfd, obfd)
bfd *ibfd;
bfd *obfd;
{
- flagword old_flags, new_flags;
+ int imach, omach;
if (! _bfd_generic_verify_endian_match (ibfd, obfd))
return FALSE;
@@ -2989,23 +3263,29 @@ cris_elf_merge_private_bfd_data (ibfd, obfd)
|| bfd_get_flavour (obfd) != bfd_target_elf_flavour)
return TRUE;
+ imach = bfd_get_mach (ibfd);
+
if (! elf_flags_init (obfd))
{
/* This happens when ld starts out with a 'blank' output file. */
elf_flags_init (obfd) = TRUE;
- /* Set flags according to current bfd_target. */
- cris_elf_final_write_processing (obfd, FALSE);
+ /* We ignore the linker-set mach, and instead set it according to
+ the first input file. This would also happen if we could
+ somehow filter out the OUTPUT_ARCH () setting from elf.sc.
+ This allows us to keep the same linker config across
+ cris(v0..v10) and crisv32. The drawback is that we can't force
+ the output type, which might be a sane thing to do for a
+ v10+v32 compatibility object. */
+ if (! bfd_set_arch_mach (obfd, bfd_arch_cris, imach))
+ return FALSE;
}
- old_flags = elf_elfheader (obfd)->e_flags;
- new_flags = elf_elfheader (ibfd)->e_flags;
-
- /* Is this good or bad? We'll follow with other excluding flags. */
- if ((old_flags & EF_CRIS_UNDERSCORE) != (new_flags & EF_CRIS_UNDERSCORE))
+ if (bfd_get_symbol_leading_char (ibfd)
+ != bfd_get_symbol_leading_char (obfd))
{
(*_bfd_error_handler)
- ((new_flags & EF_CRIS_UNDERSCORE)
+ (bfd_get_symbol_leading_char (ibfd) == '_'
? _("%B: uses _-prefixed symbols, but writing file with non-prefixed symbols")
: _("%B: uses non-prefixed symbols, but writing file with _-prefixed symbols"),
ibfd);
@@ -3013,9 +3293,61 @@ cris_elf_merge_private_bfd_data (ibfd, obfd)
return FALSE;
}
+ omach = bfd_get_mach (obfd);
+
+ if (imach != omach)
+ {
+ /* We can get an incompatible combination only if either is
+ bfd_mach_cris_v32, and the other one isn't compatible. */
+ if ((imach == bfd_mach_cris_v32
+ && omach != bfd_mach_cris_v10_v32)
+ || (omach == bfd_mach_cris_v32
+ && imach != bfd_mach_cris_v10_v32))
+ {
+ (*_bfd_error_handler)
+ ((imach == bfd_mach_cris_v32)
+ ? _("%B contains CRIS v32 code, incompatible"
+ " with previous objects")
+ : _("%B contains non-CRIS-v32 code, incompatible"
+ " with previous objects"),
+ ibfd);
+ bfd_set_error (bfd_error_bad_value);
+ return FALSE;
+ }
+
+ /* We don't have to check the case where the input is compatible
+ with v10 and v32, because the output is already known to be set
+ to the other (compatible) mach. */
+ if (omach == bfd_mach_cris_v10_v32
+ && ! bfd_set_arch_mach (obfd, bfd_arch_cris, imach))
+ return FALSE;
+ }
+
return TRUE;
}
+/* Do side-effects of e_flags copying to obfd. */
+
+static bfd_boolean
+cris_elf_copy_private_bfd_data (ibfd, obfd)
+ bfd *ibfd;
+ bfd *obfd;
+{
+ /* Call the base function. */
+ if (!_bfd_elf_copy_private_bfd_data (ibfd, obfd))
+ return FALSE;
+
+ /* If output is big-endian for some obscure reason, stop here. */
+ if (_bfd_generic_verify_endian_match (ibfd, obfd) == FALSE)
+ return FALSE;
+
+ if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour
+ || bfd_get_flavour (obfd) != bfd_target_elf_flavour)
+ return TRUE;
+
+ /* Do what we really came here for. */
+ return bfd_set_arch_mach (obfd, bfd_arch_cris, bfd_get_mach (ibfd));
+}
static enum elf_reloc_type_class
elf_cris_reloc_type_class (rela)
@@ -3061,6 +3393,8 @@ elf_cris_reloc_type_class (rela)
cris_elf_print_private_bfd_data
#define bfd_elf32_bfd_merge_private_bfd_data \
cris_elf_merge_private_bfd_data
+#define bfd_elf32_bfd_copy_private_bfd_data \
+ cris_elf_copy_private_bfd_data
#define bfd_elf32_bfd_reloc_type_lookup cris_reloc_type_lookup
diff --git a/bfd/libbfd.h b/bfd/libbfd.h
index c308d88..20372dd 100644
--- a/bfd/libbfd.h
+++ b/bfd/libbfd.h
@@ -1579,6 +1579,11 @@ static const char *const bfd_reloc_code_real_names[] = { "@@uninitialized@@",
"BFD_RELOC_CRIS_UNSIGNED_5",
"BFD_RELOC_CRIS_SIGNED_6",
"BFD_RELOC_CRIS_UNSIGNED_6",
+ "BFD_RELOC_CRIS_SIGNED_8",
+ "BFD_RELOC_CRIS_UNSIGNED_8",
+ "BFD_RELOC_CRIS_SIGNED_16",
+ "BFD_RELOC_CRIS_UNSIGNED_16",
+ "BFD_RELOC_CRIS_LAPCQ_OFFSET",
"BFD_RELOC_CRIS_UNSIGNED_4",
"BFD_RELOC_CRIS_COPY",
"BFD_RELOC_CRIS_GLOB_DAT",
diff --git a/bfd/reloc.c b/bfd/reloc.c
index 78d19d2..e4fdbe3 100644
--- a/bfd/reloc.c
+++ b/bfd/reloc.c
@@ -3947,6 +3947,16 @@ ENUMX
ENUMX
BFD_RELOC_CRIS_UNSIGNED_6
ENUMX
+ BFD_RELOC_CRIS_SIGNED_8
+ENUMX
+ BFD_RELOC_CRIS_UNSIGNED_8
+ENUMX
+ BFD_RELOC_CRIS_SIGNED_16
+ENUMX
+ BFD_RELOC_CRIS_UNSIGNED_16
+ENUMX
+ BFD_RELOC_CRIS_LAPCQ_OFFSET
+ENUMX
BFD_RELOC_CRIS_UNSIGNED_4
ENUMDOC
These relocs are only used within the CRIS assembler. They are not