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authorAndrew Waterman <andrew@sifive.com>2016-12-20 14:25:33 -0800
committerAlan Modra <amodra@gmail.com>2016-12-22 00:19:47 +1030
commit58a6d3c9d8d4d4be8f1dfc1a49fed264dceddaba (patch)
treea3770cd80918701a536178b68fa33e91563e9d86
parent9ef7906f20e81faa4498761002e6376f4d35c865 (diff)
downloadbinutils-gdb-58a6d3c9d8d4d4be8f1dfc1a49fed264dceddaba.tar.gz
Avoid creating symbol table entries for registers
Instructions like "jal t0, foo" were erroneously creating symbol table entries for t0 as well as foo, which causes linking problems. Fix by reordering instruction alternatives so that t0 is first attempted to be parsed as a register, rather than as a symbol. * riscv-opc.c (riscv_opcodes): Reorder jal and call entries.
-rw-r--r--opcodes/ChangeLog4
-rw-r--r--opcodes/riscv-opc.c4
2 files changed, 6 insertions, 2 deletions
diff --git a/opcodes/ChangeLog b/opcodes/ChangeLog
index d009f233c36..128bb2320fe 100644
--- a/opcodes/ChangeLog
+++ b/opcodes/ChangeLog
@@ -1,3 +1,7 @@
+2016-12-21 Andrew Waterman <andrew@sifive.com>
+
+ * riscv-opc.c (riscv_opcodes): Reorder jal and call entries.
+
2016-12-20 Maciej W. Rozycki <macro@imgtec.com>
* mips-dis.c (mips_arch_choices): Use ISA_MIPS64 rather than
diff --git a/opcodes/riscv-opc.c b/opcodes/riscv-opc.c
index 3c732fdfccc..464078d7118 100644
--- a/opcodes/riscv-opc.c
+++ b/opcodes/riscv-opc.c
@@ -143,11 +143,11 @@ const struct riscv_opcode riscv_opcodes[] =
{"jalr", "I", "d,s,j", MATCH_JALR, MASK_JALR, match_opcode, 0 },
{"j", "C", "Ca", MATCH_C_J, MASK_C_J, match_opcode, INSN_ALIAS },
{"j", "I", "a", MATCH_JAL, MASK_JAL | MASK_RD, match_opcode, INSN_ALIAS },
+{"jal", "I", "d,a", MATCH_JAL, MASK_JAL, match_opcode, 0 },
{"jal", "32C", "Ca", MATCH_C_JAL, MASK_C_JAL, match_opcode, INSN_ALIAS },
{"jal", "I", "a", MATCH_JAL | (X_RA << OP_SH_RD), MASK_JAL | MASK_RD, match_opcode, INSN_ALIAS },
-{"jal", "I", "d,a", MATCH_JAL, MASK_JAL, match_opcode, 0 },
-{"call", "I", "c", (X_T1 << OP_SH_RS1) | (X_RA << OP_SH_RD), (int) M_CALL, match_never, INSN_MACRO },
{"call", "I", "d,c", (X_T1 << OP_SH_RS1), (int) M_CALL, match_never, INSN_MACRO },
+{"call", "I", "c", (X_T1 << OP_SH_RS1) | (X_RA << OP_SH_RD), (int) M_CALL, match_never, INSN_MACRO },
{"tail", "I", "c", (X_T1 << OP_SH_RS1), (int) M_CALL, match_never, INSN_MACRO },
{"jump", "I", "c,s", 0, (int) M_CALL, match_never, INSN_MACRO },
{"nop", "C", "", MATCH_C_ADDI, 0xffff, match_opcode, INSN_ALIAS },