Hello, I'm trying to get GDB working in Linux (Ubuntu 14.04) with the MSP432P401R board using the instructions in SLAU688 -- GCC ARM Embedded Toolchain for MSP432 MCUs. I can build the blinking light example using gcc, I can attach to the device using the gdb agent from the XDS software package ( processors.wiki.ti.com/.../XDS_Emulation_Software_Package) , and I can run the code successfully. However, I'm unable to set and use breakpoints. This is what the GDB terminal looks like: (gdb) monitor reset CPU has been reset (gdb) break main Breakpoint 1 at 0x4ea: file msp432p401_cs.c, line 88. (gdb) c Continuing. Warning: Cannot insert breakpoint 1. Cannot access memory at address 0x4ea This is what the GDB-agent terminal looks like: Successfully configured xds110_msp432_jtag.dat CPU Name Port -------- ---- cortex_m4_0 :55000 Starting all cores CPU Name Status -------- ------ cortex_m4_0 Waiting for client cortex_m4_0 Client connected...Connecting to Target cortex_m4_0 - Processor type =CORTEX_MXX (Little endian) cortex_m4_0 - Target device is connected Unable to load libctools.so, Hardware breakpoints not available. Target connected...Starting server FAILED! GTI_SETBP_EX(hpid=0x8c40e38,addr=0x4ea,type=0,count=1,access=0)=ffffffff (Error -1066 @ 0x4EA) Unable to set/clear requested breakpoint. Verify that the breakpoint address is in valid memory. (Emulation package 6.0.228.0) ERROR: set_breakpoint() backend call returned 64 I noticed the line about unable to load libctools.so, so I also tried taking a copy of libctools.so from a CCS install and making it available to this process (from information here: e2e.ti.com/.../456749). This is what the GDB-agent terminal looks like if I include the libctools from CCS in my LD_LIBRARY_PATH: Successfully configured xds110_msp432_jtag.dat CPU Name Port -------- ---- cortex_m4_0 :55000 Starting all cores CPU Name Status -------- ------ cortex_m4_0 Waiting for client cortex_m4_0 Client connected...Connecting to Target cortex_m4_0 - Processor type =CORTEX_MXX (Little endian) cortex_m4_0 - Target device is connected Target connected...Starting server FAILED! GTI_SETBP_EX(hpid=0x8dd9e38,addr=0x4ea,type=0,count=1,access=0)=ffffffff (Error -1066 @ 0x4EA) Unable to set/clear requested breakpoint. Verify that the breakpoint address is in valid memory. (Emulation package 6.0.228.0) ERROR: set_breakpoint() backend call returned 64 My gcc is version 5.3.1 20160307 (from launchpad.net/gcc-arm-embedded) and my gdb is 7.10.1.20160210-cvs. Any ideas? Debugging works inside CCS, I'd just much rather use the command line tools if I possible. Thanks! Ben
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