+2020-02-20 Nelson Chu <nelson.chu@sifive.com>
+
+ * config/tc-riscv.c (riscv_ip): New boolean insn_with_csr to indicate
+ we are assembling instruction with CSR. Call riscv_csr_read_only_check
+ after parsing all arguments.
+ (enum csr_insn_type): New enum is used to classify the CSR instruction.
+ (riscv_csr_insn_type, riscv_csr_read_only_check): New functions. These
+ are used to check if we write a read-only CSR by the CSR instruction.
+ * testsuite/gas/riscv/priv-reg-fail-read-only-01.s: New testcase. Test
+ all CSR for the read-only CSR checking.
+ * testsuite/gas/riscv/priv-reg-fail-read-only-01.d: Likewise.
+ * testsuite/gas/riscv/priv-reg-fail-read-only-01.l: Likewise.
+ * testsuite/gas/riscv/priv-reg-fail-read-only-02.s: New testcase. Test
+ all CSR instructions for the read-only CSR checking.
+ * testsuite/gas/riscv/priv-reg-fail-read-only-02.d: Likewise.
+ * testsuite/gas/riscv/priv-reg-fail-read-only-02.l: Likewise.
+
+ * config/tc-riscv.c (struct riscv_set_options): New field csr_check.
+ (riscv_opts): Initialize it.
+ (reg_lookup_internal): Check the `riscv_opts.csr_check`
+ before doing the CSR checking.
+ (enum options): Add OPTION_CSR_CHECK and OPTION_NO_CSR_CHECK.
+ (md_longopts): Add mcsr-check and mno-csr-check.
+ (md_parse_option): Handle new enum option values.
+ (s_riscv_option): Handle new long options.
+ * doc/c-riscv.texi: Add description for the new .option and assembler
+ options.
+ * testsuite/gas/riscv/priv-reg-fail-fext.d: Add `-mcsr-check` to enable
+ the CSR checking.
+ * testsuite/gas/riscv/priv-reg-fail-rv32-only.d: Likewise.
+
+ * config/tc-riscv.c (csr_extra_hash): New.
+ (enum riscv_csr_class): New enum. Used to decide
+ whether or not this CSR is legal in the current ISA string.
+ (struct riscv_csr_extra): New structure to hold all extra information
+ of CSR.
+ (riscv_init_csr_hashes): New. According to the DECLARE_CSR and
+ DECLARE_CSR_ALIAS, insert CSR extra information into csr_extra_hash.
+ Call hash_reg_name to insert CSR address into reg_names_hash.
+ (reg_csr_lookup_internal, riscv_csr_class_check): New functions.
+ Decide whether the CSR is valid according to the csr_extra_hash.
+ (reg_lookup_internal): Call reg_csr_lookup_internal for CSRs.
+ (init_opcode_hash): Update 'if (hash_error != NULL)' as hash_error is
+ not a boolean. This is same as riscv_init_csr_hash, so keep the
+ consistent usage.
+ (md_begin): Call riscv_init_csr_hashes for each DECLARE_CSR.
+ * testsuite/gas/riscv/csr-dw-regnums.d: Add -march=rv32if option.
+ * testsuite/gas/riscv/priv-reg.d: Add f-ext by -march option.
+ * testsuite/gas/riscv/priv-reg-fail-fext.d: New testcase. The source
+ file is `priv-reg.s`, and the ISA is rv32i without f-ext, so the
+ f-ext CSR are not allowed.
+ * testsuite/gas/riscv/priv-reg-fail-fext.l: Likewise.
+ * testsuite/gas/riscv/priv-reg-fail-rv32-only.d: New testcase. The
+ source file is `priv-reg.s`, and the ISA is rv64if, so the
+ rv32-only CSR are not allowed.
+ * testsuite/gas/riscv/priv-reg-fail-rv32-only.l: Likewise.
+
+2020-02-21 Alan Modra <amodra@gmail.com>
+
+ * config/tc-pdp11.c (md_apply_fix): Handle BFD_RELOC_32.
+ (tc_gen_reloc): Only give a BAD_CASE assertion on pcrel relocs.
+
+2020-02-21 Alan Modra <amodra@gmail.com>
+
+ PR 25569
+ * config/obj-aout.c (obj_aout_frob_file_before_fix): Don't loop
+ on section size adjustment, instead perform another write if
+ exec header size is larger than section size.
+
2020-02-19 Nelson Chu <nelson.chu@sifive.com>
* doc/c-riscv.texi: Add the doc entries for -march-attr/
projects / binutils-gdb.git / blobdiff