CSKY: Support attribute section.

bfd
        * elf32-csky.c (csky_archs): Fix arch names.
        (csky_find_arch_with_name): New.
        (elf32_csky_merge_attributes): New.
        (csky_elf_merge_private_bfd_data): Add process of merge
        attribute section.
        (elf32_csky_obj_attrs_arg_type): New.
        (elf32_csky_obj_attrs_handle_unknown): New.
        (elf_backend_obj_attrs_vendor): Define.
        (elf_backend_obj_attrs_section): Define.
        (elf_backend_obj_attrs_arg_type): Define.
        (elf_backend_obj_attrs_section_type): Define.

binutils/
        * readelf.c (get_csky_section_type_name): New.
        (get_section_type_name): Add handler for CSKY.
        (display_csky_attribute): New.
        (process_arch_specific): Add handler for CSKY.
        * testsuite/binutils-all/strip-3.d: Remove .csky.attributes
        section.

elfcpp/
        * elfcpp.h (enum SHT): New enum SHT_CSKY_ATTRIBUTES.

gas/
        * gas/config/tc-csky.c (md_begin): Set attributes.
        (isa_flag): Change type to unsigned 64 bits.
        (struct csky_cpu_info): Likewise.
        (struct csky_macro_info): Likewise.
        (set_csky_attribute): New.
        * testsuite/gas/csky/802j.d: Ignore .csky.attributes section.
        * testsuite/gas/csky/all.d: Likewise.
        * testsuite/gas/csky/bsr1.d: Likewise.
        * testsuite/gas/csky/csky_vdsp.d: Likewise.
        * testsuite/gas/csky/cskyv2_all.d: Likewise.
        * testsuite/gas/csky/cskyv2_ck803r2.d: Likewise.
        * testsuite/gas/csky/cskyv2_ck860.d: Likewise.
        * testsuite/gas/csky/cskyv2_dsp.d: Likewise.
        * testsuite/gas/csky/cskyv2_elrw.d: Likewise.
        * testsuite/gas/csky/cskyv2_float.d: Likewise.
        * testsuite/gas/csky/enhance_dsp.d: Likewise.
        * testsuite/gas/csky/java.d: Likewise.
        * testsuite/gas/csky/v1_float.d: Likewise.
        * testsuite/gas/csky/v2_float_part1.d: Likewise.
        * testsuite/gas/csky/v2_float_part2.d: Likewise.
        * testsuite/gas/csky/v2_tls_gd.d: Likewise.
        * testsuite/gas/csky/v2_tls_ie.d: Likewise.
        * testsuite/gas/csky/v2_tls_ld.d: Likewise.
        * testsuite/gas/csky/v2_tls_le.d: Likewise.
        * testsuite/gas/elf/elf.exp: Add handler for CSKY.
        * testsuite/gas/elf/section2.e-csky: New.

include/
        * elf/csky.h (SHT_CSKY_ATTRIBUTES): Define.
        (Tag_CSKY_ARCH_NAME): New enum constant.
        (Tag_CSKY_CPU_NAME): Likewise.
        (Tag_CSKY_ISA_FLAGS): Likewise.
        (Tag_CSKY_DSP_VERSION): Likewise.
        (Tag_CSKY_VDSP_VERSION): Likewise.
        (Tag_CSKY_FPU_VERSION): Likewise.
        (Tag_CSKY_FPU_ABI): Likewise.
        (Tag_CSKY_FPU_ROUNDING): Likewise.
        (Tag_CSKY_FPU_DENORMAL): Likewise.
        (Tag_CSKY_FPU_Exception): Likewise.
        (Tag_CSKY_FPU_NUMBER_MODULE): Likewise.
        (Tag_CSKY_FPU_HARDFP): Likewise.
        (Tag_CSKY_MAX): Likewise.
        (VAL_CSKY_DSP_VERSION_EXTENSION): Likewise.
        (VAL_CSKY_DSP_VERSION_2): Likewise.
        (VAL_CSKY_VDSP_VERSION_1): Likewise.
        (VAL_CSKY_VDSP_VERSION_2): Likewise.
        (VAL_CSKY_FPU_ABI_SOFT): Likewise.
        (VAL_CSKY_FPU_ABI_SOFTFP): Likewise.
        (VAL_CSKY_FPU_ABI_HARD): Likewise.
        (VAL_CSKY_FPU_HARDFP_HALF): Likewise.
        (VAL_CSKY_FPU_HARDFP_SINGLE): Likewise.
        (VAL_CSKY_FPU_HARDFP_DOUBLE): Likewise.
        * opcode/csky.h (CSKY_ISA_VDSP_V2): Define.
        CSKYV1_ISA_E1: Change to long constant type.
        CSKYV2_ISA_E1: Likewise.
        CSKYV2_ISA_1E2: Likewise.
        CSKYV2_ISA_2E3: Likewise.
        CSKYV2_ISA_3E7: Likewise.
        CSKYV2_ISA_7E10: Likewise.
        CSKYV2_ISA_3E3R1: Likewise.
        CSKYV2_ISA_3E3R2: Likewise.
        CSKYV2_ISA_10E60: Likewise.
        CSKY_ISA_TRUST: Likewise.
        CSKY_ISA_CACHE: Likewise.
        CSKY_ISA_NVIC: Likewise.
        CSKY_ISA_CP: Likewise.
        CSKY_ISA_MP: Likewise.
        CSKY_ISA_MP_1E2: Likewise.
        CSKY_ISA_JAVA: Likewise.
        CSKY_ISA_MAC: Likewise.
        CSKY_ISA_MAC_DSP: Likewise.
        CSKY_ISA_DSP: Likewise.
        CSKY_ISA_DSP_1E2: Likewise.
        CSKY_ISA_DSP_ENHANCE: Likewise.
        CSKY_ISA_FLOAT_E1: Likewise.
        CSKY_ISA_FLOAT_1E2: Likewise.
        CSKY_ISA_FLOAT_1E3: Likewise.
        CSKY_ISA_FLOAT_3E4: Likewise.
        CSKY_ISA_VDSP: Likewise.

ld/
        * emulparams/cskyelf.sh: Support attribute section.
        * testsuite/ld-csky/tls-le-v1.d: Match .csky.attributes section.
        * ld/testsuite/ld-csky/tls-le.d: Likewise.
        * testsuite/ld-elf/non-contiguous.ld: Ignore .csky.attributes
        section.

opcodes/
        * csky-dis.c (CSKY_DEFAULT_ISA): Define.
        (csky_dis_info): Add member isa.
        (csky_find_inst_info): Skip instructions that do not belong to
        current CPU.
        (csky_get_disassembler): Get infomation from attribute section.
        (print_insn_csky): Set defualt ISA flag.
        * csky.h (CSKY_ISA_VDSP_2): Rename from CSKY_ISA_VDSP_V2.
        * csky-opc.h (struct csky_opcode): Change isa_flag16 and
        isa_flag32'type to unsigned 64 bits.

5 files changed, 14 insertions, 0 deletions

diff --git a/ld/ChangeLog b/ld/ChangeLog
index 568e221..16274e8 100644
--- a/ld/ChangeLog
+++ b/ld/ChangeLog
@@ -1,3 +1,11 @@
+2020-08-28  Cooper Qu  <cooper.qu@linux.alibaba.com>
+
+	* emulparams/cskyelf.sh: Support attribute section.
+	* testsuite/ld-csky/tls-le-v1.d: Match .csky.attributes section.
+	* ld/testsuite/ld-csky/tls-le.d: Likewise.
+	* testsuite/ld-elf/non-contiguous.ld: Ignore .csky.attributes
+	section.
+
 2020-08-28  Nick Clifton  <nickc@redhat.com>
 
 	PR 19011
diff --git a/ld/emulparams/cskyelf.sh b/ld/emulparams/cskyelf.sh
index d572ac8..b940c6c 100644
--- a/ld/emulparams/cskyelf.sh
+++ b/ld/emulparams/cskyelf.sh
@@ -10,6 +10,7 @@ MAXPAGESIZE="CONSTANT (MAXPAGESIZE)"
 TEXT_START_ADDR=0x8000
 CHECK_RELOCS_AFTER_OPEN_INPUT=yes
 NONPAGED_TEXT_START_ADDR=0
+ATTRS_SECTIONS='.csky.attributes 0 : { KEEP (*(.csky.attributes)) KEEP (*(.csky.attributes)) }'
 ARCH=csky
 EMBEDDED=yes
 EXTRA_EM_FILE=cskyelf
diff --git a/ld/testsuite/ld-csky/tls-le-v1.d b/ld/testsuite/ld-csky/tls-le-v1.d
index 034d5d9..d13c403 100644
--- a/ld/testsuite/ld-csky/tls-le-v1.d
+++ b/ld/testsuite/ld-csky/tls-le-v1.d
@@ -12,3 +12,5 @@ Idx Name          Size      VMA       LMA       File off  Algn
                   .*
   1 .tbss         .*
                   .*
+  2 .csky.attributes .*
+                  .*
diff --git a/ld/testsuite/ld-csky/tls-le.d b/ld/testsuite/ld-csky/tls-le.d
index 8a0d90f..0a241b3 100644
--- a/ld/testsuite/ld-csky/tls-le.d
+++ b/ld/testsuite/ld-csky/tls-le.d
@@ -11,3 +11,5 @@ Idx Name          Size      VMA       LMA       File off  Algn
                   .*
   1 .tbss         .*
                   .*
+  2 .csky.attributes .*
+                  .*
diff --git a/ld/testsuite/ld-elf/non-contiguous.ld b/ld/testsuite/ld-elf/non-contiguous.ld
index fc72253..cfd3f24 100644
--- a/ld/testsuite/ld-elf/non-contiguous.ld
+++ b/ld/testsuite/ld-elf/non-contiguous.ld
@@ -23,6 +23,7 @@ SECTIONS
 	     *(.note.renesas)
 	     *(.MIPS.abiflags)
 	     *(.MSP430.attributes)
+	     *(.csky.attributes)
 	     *(.gnu.attributes)
    }