With trunk as well 2.23 gas is erroring out on assembling a valid ldrt instruction with 'al' conditional code testcase /tmp/as.s ldralt r5,[r1],#4 $ ./gas/as-new -march=armv5te /tmp/a.s /tmp/a.s: Assembler messages: /tmp/a.s:1: Error: selected processor does not support ARM mode `ldralt r5,[r1],#4' The below commit is the casue of this error Author: mgretton <mgretton> Date: Fri Aug 24 08:03:38 2012 +0000 * gas/config/tc-arm.c (do_rm_rn): New function. (do_strlex): Likewise. (do_t_strlex): Likewise. (insns): Add support for LDRA/STRL instructions. * gas/testsuite/gas/arm/armv8-a-bad.l: Update testcase. * gas/testsuite/gas/arm/armv8-a-bad.s: Likewise. * gas/testsuite/gas/arm/armv8-a.d: Likewise. * gas/testsuite/gas/arm/armv8-a.s: Likewise. * opcodes/arm-dis.c (arm_opcodes): Add LDRA/STRL instructions. (thumb32_opcodes): Likewise. (print_arm_insn): Add support for %<>T formatter.
The problem was described here... http://sourceware.org/ml/binutils/2012-09/msg00130.html ... and fixed here: http://sourceware.org/ml/binutils-cvs/2012-09/msg00119.html (patch checked into 2.23 branch and mainline)