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Commit cad08ace authored by Jason Wessel's avatar Jason Wessel
Browse files

kgdbts,sh: Add in breakpoint pc offset for superh 



The kgdb test suite mimics the behavior of gdb.  For the sh
architecture the pc must be decremented by 2 for software breakpoint.

Signed-off-by: default avatarJason Wessel <jason.wessel@windriver.com>
Acked-by: default avatarPaul Mundt <lethal@linux-sh.org>
parent a0279bd5

drivers/misc/kgdbts.c

+6 −0
Original line number Diff line number Diff line
@@ -295,6 +295,10 @@ static int check_and_rewind_pc(char *put_str, char *arg) 
	/* On x86 a breakpoint stop requires it to be decremented */

	if (addr + 1 == kgdbts_regs.ip)

		offset = -1;

#elif defined(CONFIG_SUPERH)

	/* On SUPERH a breakpoint stop requires it to be decremented */

	if (addr + 2 == kgdbts_regs.pc)

		offset = -2;

#endif

	if (strcmp(arg, "silent") &&

		instruction_pointer(&kgdbts_regs) + offset != addr) {
@@ -305,6 +309,8 @@ static int check_and_rewind_pc(char *put_str, char *arg) 
#ifdef CONFIG_X86

	/* On x86 adjust the instruction pointer if needed */

	kgdbts_regs.ip += offset;

#elif defined(CONFIG_SUPERH)

	kgdbts_regs.pc += offset;

#endif

	return 0;

}