| Commit message (Collapse) | Author | Age | Files | Lines | |
|---|---|---|---|---|---|
| * | kgdb, x86, arm, mips, powerpc: ignore user space single stepping | Jason Wessel | 2008-09-26 | 1 | -2/+1 |
| | | | | | | | | | | | | | | | | | | | | | On the x86 arch, user space single step exceptions should be ignored if they occur in the kernel space, such as ptrace stepping through a system call. First check if it is kgdb that is executing a single step, then ensure it is not an accidental traversal into the user space, while in kgdb, any other time the TIF_SINGLESTEP is set, kgdb should ignore the exception. On x86, arm, mips and powerpc, the kgdb_contthread usage was inconsistent with the way single stepping is implemented in the kgdb core. The arch specific stub should always set the kgdb_cpu_doing_single_step correctly if it is single stepping. This allows kgdb to correctly process an instruction steps if ptrace happens to be requesting an instruction step over a system call. Signed-off-by: Jason Wessel <jason.wessel@windriver.com> | ||||
| * | [MIPS] kgdb: Do not call fixup_exception | Atsushi Nemoto | 2008-08-26 | 1 | -3/+0 |
| | | | | | | | | | | kgdb_mips_notify is called on IBE/DBE/FPE/BP/TRAP/RI exception. None of them need fixup. And doing fixup for a breakpoint exception will confuse gdb. Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp> Signed-off-by: Ralf Baechle <ralf@linux-mips.org> | ||||
| * | [MIPS] kgdb: s/(void *)0)/NULL/ | Ralf Baechle | 2008-08-26 | 1 | -1/+1 |
| | | | | | Signed-off-by: Ralf Baechle <ralf@linux-mips.org> | ||||
| * | [MIPS] kgdb: smp_call_function's 3rd argument is a pointer. | Ralf Baechle | 2008-08-26 | 1 | -1/+1 |
| | | | | | Signed-off-by: Ralf Baechle <ralf@linux-mips.org> | ||||
| * | [MIPS] kgdb: add arch support for the kernel's kgdb core | Jason Wessel | 2008-07-30 | 1 | -0/+281 |
| The new kgdb architecture specific handler registers and unregisters dynamically for exceptions depending on when you configure a kgdb I/O driver. Aside from initializing the exceptions earlier in the boot process, kgdb should have no impact on a device when it is compiled in so long as an I/O module is not configured for use. There have been quite a number of contributors during the existence of this patch (see arch/mips/kernel/kgdb.c). Most recently Jason re-wrote the mips kgdb logic to use the die notification handlers. Signed-off-by: Jason Wessel <jason.wessel@windriver.com> Signed-off-by: Ralf Baechle <ralf@linux-mips.org> | |||||
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