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kgdbts,sh: Add in breakpoint pc offset for superh

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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: Jason Wessel <jason.wessel@windriver.com>
Acked-by: Paul Mundt <lethal@linux-sh.org>
This commit is contained in:
Jason Wessel 2010-04-02 11:31:35 -05:00
parent a0279bd580
commit cad08acebf
1 changed files with 6 additions and 0 deletions
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6
drivers/misc/kgdbts.c
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@ -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 */ /* On x86 a breakpoint stop requires it to be decremented */
if (addr + 1 == kgdbts_regs.ip) if (addr + 1 == kgdbts_regs.ip)
offset = -1; 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 #endif
if (strcmp(arg, "silent") && if (strcmp(arg, "silent") &&
instruction_pointer(&kgdbts_regs) + offset != addr) { instruction_pointer(&kgdbts_regs) + offset != addr) {
@ -305,6 +309,8 @@ static int check_and_rewind_pc(char *put_str, char *arg)
#ifdef CONFIG_X86 #ifdef CONFIG_X86
/* On x86 adjust the instruction pointer if needed */ /* On x86 adjust the instruction pointer if needed */
kgdbts_regs.ip += offset; kgdbts_regs.ip += offset;
#elif defined(CONFIG_SUPERH)
kgdbts_regs.pc += offset;
#endif #endif
return 0; return 0;
} }