Dear All, I have developed machine code for my Samsung S3C2510A MCU under Linux kernel 2.6.36. The code exists at arch/arm/mach-s3c2510a. I developed only CPU, UART and Clocks initialization code, especially. For developing the S3C2510A HAL code, I have gone through the existing mach-s3c2410 code. I build vmlinux image on a Linux box in the ELF format for my Samsung MCU. Then, I am trying to load the build vmlinux image on to my device’s (targets) RAM area using J-link J-TAG and J-LinkGDBServer tool with a gdbinit script file from Cygwin on a Windows XP system. The gdb init script file initializes the CPU system configuration registers, RAM, Flash and UART registers and then loads ELF image. I am able to put break points in the developed HAL code. However, when I run (continue) from gdb prompt, I did not see any break points in the GDB server tool, but, when I press “Ctrl+C”, I am seeing the following messages. <gdb> break s3c2510a_init Breakpoint 1 at 0x3000b648: file arch/arm/mach-s3c2510a/s3c2510a.c, line 59. <gdb> c Continuing. Pressing “control+c”, then the statements are as follows. Program received signal SIGTRAP, Trace/Breakpoint trap. __error_p () at head-common.S:142 <gdb>bt #0 __error_p () at head-common.S:142 Why am I seeing these errors? Am I missing any CPU configuration, still? FYI: I build the kernel with debugging information enabled i.e. I set CONFIG_DEBUG_KERNEL to y. I did not see any debug messages in the hyper terminal. I have gone through the following links. However, there are all based on the 2.4.x kernel versions. I think, they are slightly different. http://gicl.cs.drexel.edu/people/sevy/linux/ARM_Linux_boot_sequence.html http://www.simtec.co.uk/products/SWLINUX/files/booting_article.html Any hints/help/links would be appreciated. Thanks and Regards, Madhavi M. -- To unsubscribe from this list: send the line "unsubscribe linux-arch" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
