kgdb_arch_handle_exception(9) [suse man page]

KGDB_ARCH_HANDLE_EXC(9) 					  KGDB Internals					   KGDB_ARCH_HANDLE_EXC(9)

NAME

       kgdb_arch_handle_exception - Handle architecture specific GDB packets.

SYNOPSIS

       int kgdb_arch_handle_exception(int vector, int signo, int err_code, char * remcom_in_buffer, char * remcom_out_buffer,
				      struct pt_regs * regs);

ARGUMENTS

       vector
	   The error vector of the exception that happened.

       signo
	   The signal number of the exception that happened.

       err_code
	   The error code of the exception that happened.

       remcom_in_buffer
	   The buffer of the packet we have read.

       remcom_out_buffer
	   The buffer of BUFMAX bytes to write a packet into.

       regs
	   The struct pt_regs of the current process.

DESCRIPTION

       This function MUST handle the 'c' and 's' command packets, as well packets to set / remove a hardware breakpoint, if used. If there are
       additional packets which the hardware needs to handle, they are handled here. The code should return -1 if it wants to process more
       packets, and a 0 or 1 if it wants to exit from the kgdb callback.

AUTHORS

       Jason Wessel <jason.wessel@windriver.com>
	   Author.

       Tom Rini <trini@kernel.crashing.org>
	   Author.

       Amit S. Kale <amitkale@linsyssoft.com>
	   Author.

COPYRIGHT

Kernel Hackers Manual 2.6.					     July 2010						   KGDB_ARCH_HANDLE_EXC(9)

STRUCT 
KGDB_ARCH(9)					     Kernel Debugger Internals					       STRUCT KGDB_ARCH(9)

NAME

       struct_kgdb_arch - Describe architecture specific values.

SYNOPSIS

       struct kgdb_arch {
	 unsigned char gdb_bpt_instr[BREAK_INSTR_SIZE];
	 unsigned long flags;
	 int (* set_breakpoint) (unsigned long, char *);
	 int (* remove_breakpoint) (unsigned long, char *);
	 int (* set_hw_breakpoint) (unsigned long, int, enum kgdb_bptype);
	 int (* remove_hw_breakpoint) (unsigned long, int, enum kgdb_bptype);
	 void (* disable_hw_break) (struct pt_regs *regs);
	 void (* remove_all_hw_break) (void);
	 void (* correct_hw_break) (void);
	 void (* enable_nmi) (bool on);
       };

MEMBERS

       gdb_bpt_instr[BREAK_INSTR_SIZE]
	   The instruction to trigger a breakpoint.

       flags
	   Flags for the breakpoint, currently just KGDB_HW_BREAKPOINT.

       set_breakpoint
	   Allow an architecture to specify how to set a software breakpoint.

       remove_breakpoint
	   Allow an architecture to specify how to remove a software breakpoint.

       set_hw_breakpoint
	   Allow an architecture to specify how to set a hardware breakpoint.

       remove_hw_breakpoint
	   Allow an architecture to specify how to remove a hardware breakpoint.

       disable_hw_break
	   Allow an architecture to specify how to disable hardware breakpoints for a single cpu.

       remove_all_hw_break
	   Allow an architecture to specify how to remove all hardware breakpoints.

       correct_hw_break
	   Allow an architecture to specify how to correct the hardware debug registers.

       enable_nmi
	   Manage NMI-triggered entry to KGDB

AUTHOR

       Jason Wessel <jason.wessel@windriver.com>
	   Author.

COPYRIGHT

Kernel Hackers Manual 3.10					     June 2014						       STRUCT KGDB_ARCH(9)