From: Yao Qi Date: Fri, 26 Feb 2016 15:00:36 +0000 (+0000) Subject: Record right reg num of thumb special data instructions X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=1f33efec7c6d1357d7e867176cfb88942fc513a8;p=binutils-gdb.git Record right reg num of thumb special data instructions When GDB decodes these thumb special data instructions, such as 'mov sp, r7' the Rd is got incorrectly. According to the arch reference manual, the Rd is DN:Rdn, in which DN is bit 7 and Rdn is bits 0 to 2. This patch fixes it. gdb: 2016-02-26 Yao Qi * arm-tdep.c (thumb_record_ld_st_reg_offset): Fix the register number of Rd. --- diff --git a/gdb/ChangeLog b/gdb/ChangeLog index fe3aa3627f2..36cbef6e8a8 100644 --- a/gdb/ChangeLog +++ b/gdb/ChangeLog @@ -1,3 +1,8 @@ +2016-02-26 Yao Qi + + * arm-tdep.c (thumb_record_ld_st_reg_offset): Fix the register + number of Rd. + 2016-02-25 Doug Evans * remote-m32r-sdi.c (recv_char_data): Initialize val to avoid diff --git a/gdb/arm-tdep.c b/gdb/arm-tdep.c index 17f6fc6c373..bd0ee97b269 100644 --- a/gdb/arm-tdep.c +++ b/gdb/arm-tdep.c @@ -11512,10 +11512,10 @@ thumb_record_ld_st_reg_offset (insn_decode_record *thumb_insn_r) } else { - /* Format 8; special data processing insns. */ - reg_src1 = bits (thumb_insn_r->arm_insn, 0, 2); - record_buf[0] = ARM_PS_REGNUM; - record_buf[1] = reg_src1; + /* Format 8; special data processing insns. */ + record_buf[0] = ARM_PS_REGNUM; + record_buf[1] = (bit (thumb_insn_r->arm_insn, 7) << 3 + | bits (thumb_insn_r->arm_insn, 0, 2)); thumb_insn_r->reg_rec_count = 2; } }