Implement kgdb_arch_pc() which adjusts the pc if it needs to be adjusted after a software breakpoint trap.
Implement kgdb_arch_set_pc() which is a new required function in the kgdb debug core. When processing a single step return zero in the error exception field so that the debug core can distinguish between a single step trap and a breakpoint trap generically. Signed-off-by: Jason Wessel <[email protected]> Acked-by: Paul Mundt <[email protected]> --- arch/sh/kernel/kgdb.c | 14 +++++++++++++- 1 files changed, 13 insertions(+), 1 deletions(-) diff --git a/arch/sh/kernel/kgdb.c b/arch/sh/kernel/kgdb.c index 3e532d0..1ec03c9 100644 --- a/arch/sh/kernel/kgdb.c +++ b/arch/sh/kernel/kgdb.c @@ -237,6 +237,18 @@ int kgdb_arch_handle_exception(int e_vector, int signo, int err_code, return -1; } +unsigned long kgdb_arch_pc(int exception, struct pt_regs *regs) +{ + if (exception == 60) + return instruction_pointer(regs) - 2; + return instruction_pointer(regs); +} + +void kgdb_arch_set_pc(struct pt_regs *regs, unsigned long ip) +{ + regs->pc = ip; +} + /* * The primary entry points for the kgdb debug trap table entries. */ @@ -247,7 +259,7 @@ BUILD_TRAP_HANDLER(singlestep) local_irq_save(flags); regs->pc -= instruction_size(__raw_readw(regs->pc - 4)); - kgdb_handle_exception(vec >> 2, SIGTRAP, 0, regs); + kgdb_handle_exception(0, SIGTRAP, 0, regs); local_irq_restore(flags); } -- 1.6.3.1.9.g95405b ------------------------------------------------------------------------------ Throughout its 18-year history, RSA Conference consistently attracts the world's best and brightest in the field, creating opportunities for Conference attendees to learn about information security's most important issues through interactions with peers, luminaries and emerging and established companies. http://p.sf.net/sfu/rsaconf-dev2dev _______________________________________________ Kgdb-bugreport mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/kgdb-bugreport
