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I posted a patch in 2008 here: http://sourceware.org/ml/gdb-patches/2008-10/msg00462.html but unfortunately it wasn't applied. Without it, GDB cannot debug Cortex-M processors as the thumb bit is in a different place in the CPSR register. I have updated it for GDB 7.1, as per the attached mail and updated ChangeLog below. I do have a copyright assignment, as well as the ability to commit. Can someone review please? Jifl 2010-07-08 Jonathan Larmour <jifl@eCosCentric.com> * arm-tdep.h (CPSR_T): define as function-like macro, checking for M-profile, which affects T_bit position, e.g. for Cortex-M. (struct gdbarch_tdep): add arm_eabi_cpu_arch and arm_eabi_cpu_arch_profile members. * arm-tdep.c (arm_frame_is_thumb, arm_prologue_prev_register, arm_dwarf2_prev_register, displaced_in_arm_mode, bx_write_pc, arm_write_pc): Get tdep and use with updated CPSR_T macro. (arm_gdbarch_init): If EABI, extract architecture and profile attributes and store in tdep. -- eCosCentric Limited http://www.eCosCentric.com/ The eCos experts Barnwell House, Barnwell Drive, Cambridge, UK. Tel: +44 1223 245571 Registered in England and Wales: Reg No 4422071. ------["Si fractum non sit, noli id reficere"]------ Opinions==mine
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