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alistair23-linux/arch/mips/kernel
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Jason Wessel d7161a6534 kgdb, x86, arm, mips, powerpc: ignore user space single stepping 
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>
2008-09-26 10:36:41 -05:00
..
.gitignore [MIPS] Ignore vmlinux.lds generated files 2008-08-26 09:10:27 +01:00
8250-platform.c
asm-offsets.c mips: use kbuild.h instead of macros in asm-offsets.c 2008-04-29 08:06:29 -07:00
binfmt_elfn32.c remove div_long_long_rem 2008-05-01 08:03:58 -07:00
binfmt_elfo32.c remove div_long_long_rem 2008-05-01 08:03:58 -07:00
branch.c
cevt-bcm1480.c
cevt-ds1287.c [MIPS] DS1287: Add clockevent driver 2008-04-28 17:14:32 +01:00
cevt-gt641xx.c [MIPS] cevt-gt641xx: Kill unnecessary include 2008-04-28 17:14:32 +01:00
cevt-r4k.c
cevt-sb1250.c
cevt-txx9.c [MIPS] cevt-txx9: Reset timer counter on initialization 2008-07-03 19:14:27 +01:00
cpu-bugs64.c [MIPS] Add empty argument parenthesis to GCC_IMM_ASM 2008-05-12 16:46:52 +01:00
cpu-probe.c [MIPS] Fix potential latency problem due to non-atomic cpu_wait. 2008-09-21 14:52:57 +02:00
csrc-bcm1480.c
csrc-ioasic.c [MIPS] add DECstation I/O ASIC clocksource 2008-04-28 17:14:32 +01:00
csrc-r4k.c [MIPS] Clocksource: Only install r4k counter as clocksource if present. 2008-03-12 14:14:42 +00:00
csrc-sb1250.c
early_printk.c [MIPS] fix sparse warning about setup_early_printk() 2008-07-15 18:44:29 +01:00
entry.S
genex.S [MIPS] Fix potential latency problem due to non-atomic cpu_wait. 2008-09-21 14:52:57 +02:00
gpio_txx9.c [MIPS] txx9: Make gpio_txx9 entirely spinlock-safe 2008-07-15 18:44:34 +01:00
head.S [MIPS] Fix loads of section missmatches 2008-03-12 14:14:41 +00:00
i8253.c [MIPS] i8253: make the pit_clockevent variable static 2008-07-15 18:44:31 +01:00
i8259.c
init_task.c [PATCH] take init_files to fs/file.c 2008-05-16 17:22:20 -04:00
irq-gic.c [MIPS] Add support for MIPS CMP platform. 2008-04-28 17:14:26 +01:00
irq-gt641xx.c
irq-msc01.c [MIPS] Fix some sparse warnings on traps.c and irq-msc01.c 2008-04-28 17:14:32 +01:00
irq-rm7000.c [MIPS] Fix broken rm7000/rm9000 interrupt handling 2008-02-19 17:01:31 +00:00
irq-rm9000.c on_each_cpu(): kill unused 'retry' parameter 2008-06-26 11:24:38 +02:00
irq.c [MIPS] kgdb: add arch support for the kernel's kgdb core 2008-07-30 21:54:42 +01:00
irq_cpu.c
irq_txx9.c
kgdb.c kgdb, x86, arm, mips, powerpc: ignore user space single stepping 2008-09-26 10:36:41 -05:00
kspd.c [MIPS] MT: Functional fixes and a little reformatting of APRP support 2008-05-12 16:46:51 +01:00
linux32.c remove unused #include <linux/dirent.h>'s 2008-07-25 10:53:34 -07:00
machine_kexec.c
Makefile [MIPS] kgdb: add arch support for the kernel's kgdb core 2008-07-30 21:54:42 +01:00
mips-mt-fpaff.c [MIPS] Use find_task_by_vpid in system calls 2008-02-19 17:01:30 +00:00
mips-mt.c [MIPS] Replace use of print_symbol with new %sP pointer format. 2008-07-15 18:44:33 +01:00
mips_ksyms.c
module.c PAGE_ALIGN(): correctly handle 64-bit values on 32-bit architectures 2008-07-24 10:47:21 -07:00
proc.c
process.c [MIPS] SMTC: Clear TIF_FPUBOUND on clone / fork. 2008-09-21 14:52:57 +02:00
ptrace.c
ptrace32.c
r4k_fpu.S
r4k_switch.S
r2300_fpu.S
r2300_switch.S
r6000_fpu.S
relocate_kernel.S
reset.c
rtlx.c device create: mips: convert device_create to device_create_drvdata 2008-07-21 21:54:43 -07:00
scall32-o32.S [MIPS] Wire up new syscalls. 2008-08-26 09:10:20 +01:00
scall64-64.S [MIPS] Wire up new syscalls. 2008-08-26 09:10:20 +01:00
scall64-n32.S [MIPS] Wire up new syscalls. 2008-08-26 09:10:20 +01:00
scall64-o32.S [MIPS] Wire up new syscalls. 2008-08-26 09:10:20 +01:00
setup.c [MIPS] Probe initrd header only if explicitly specified 2008-09-05 21:24:12 +01:00
signal-common.h [MIPS] replace remaining __FUNCTION__ occurrences 2008-04-28 17:14:27 +01:00
signal.c
signal32.c
signal_n32.c
smp-cmp.c [MIPS] Add support for MIPS CMP platform. 2008-04-28 17:14:26 +01:00
smp-mt.c [MIPS] Add support for MIPS CMP platform. 2008-04-28 17:14:26 +01:00
smp-up.c
smp.c on_each_cpu(): kill unused 'retry' parameter 2008-06-26 11:24:38 +02:00
smtc-asm.S
smtc-proc.c
smtc.c mips: convert to generic helpers for IPI function calls 2008-06-26 11:22:57 +02:00
spram.c [MIPS] Basic SPRAM support 2008-04-28 17:14:23 +01:00
stacktrace.c arch/mips/kernel/stacktrace.c: Heiko can't type 2008-07-23 11:21:45 +02:00
sync-r4k.c [MIPS] Add support for MIPS CMP platform. 2008-04-28 17:14:26 +01:00
syscall.c flag parameters: pipe 2008-07-24 10:47:28 -07:00
time.c [MIPS] unexport null_perf_irq() and make it static 2008-04-28 17:14:31 +01:00
topology.c
traps.c [MIPS] Fix potential latency problem due to non-atomic cpu_wait. 2008-09-21 14:52:57 +02:00
unaligned.c
vmlinux.lds.S [MIPS] vmlinux.lds.S: handle .text.* 2008-09-21 14:52:58 +02:00
vpe.c mips: cdev lock_kernel() pushdown 2008-05-18 15:43:40 -06:00