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* MIPS: ptrace: Remove FP support when CONFIG_MIPS_FP_SUPPORT=nPaul Burton2018-11-091-13/+20
| | | | | | | | | | | When CONFIG_MIPS_FP_SUPPORT=n we don't support floating point, so remove the related ptrace support. Besides removing code which should not be needed, this prepares us for the removal of FPU state in struct task_struct which this code requires. Signed-off-by: Paul Burton <paul.burton@mips.com> Patchwork: https://patchwork.linux-mips.org/patch/21008/ Cc: linux-mips@linux-mips.org
* MIPS: Correct the 64-bit DSP accumulator register sizeMaciej W. Rozycki2018-07-191-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | Use the `unsigned long' rather than `__u32' type for DSP accumulator registers, like with the regular MIPS multiply/divide accumulator and general-purpose registers, as all are 64-bit in 64-bit implementations and using a 32-bit data type leads to contents truncation on context saving. Update `arch_ptrace' and `compat_arch_ptrace' accordingly, removing casts that are similarly not used with multiply/divide accumulator or general-purpose register accesses. Signed-off-by: Maciej W. Rozycki <macro@mips.com> Signed-off-by: Paul Burton <paul.burton@mips.com> Fixes: e50c0a8fa60d ("Support the MIPS32 / MIPS64 DSP ASE.") Patchwork: https://patchwork.linux-mips.org/patch/19329/ Cc: Alexander Viro <viro@zeniv.linux.org.uk> Cc: James Hogan <jhogan@kernel.org> Cc: Ralf Baechle <ralf@linux-mips.org> Cc: linux-fsdevel@vger.kernel.org Cc: linux-mips@linux-mips.org Cc: linux-kernel@vger.kernel.org Cc: stable@vger.kernel.org # 2.6.15+
* Merge tag 'mips_4.18' of ↵Linus Torvalds2018-06-121-2/+2
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/mips/linux Pull MIPS updates from James Hogan: "These are the main MIPS changes for 4.18. Rough overview: - MAINTAINERS: Add Paul Burton as MIPS co-maintainer - Misc: Generic compiler intrinsics, Y2038 improvements, Perf+MT fixes - Platform support: Netgear WNR1000 V3, Microsemi Ocelot integrated switch, Ingenic watchdog cleanups More detailed summary: Maintainers: - Add Paul Burton as MIPS co-maintainer, as I soon won't have access to much MIPS hardware, nor enough time to properly maintain MIPS on my own. Miscellaneous: - Use generic GCC library routines from lib/ - Add notrace to generic ucmpdi2 implementation - Rename compiler intrinsic selects to GENERIC_LIB_* - vmlinuz: Use generic ashldi3 - y2038: Convert update/read_persistent_clock() to *_clock64() - sni: Remove read_persistent_clock() - perf: Fix perf with MT counting other threads - Probe for per-TC perf counters in cpu-probe.c - Use correct VPE ID for VPE tracing Minor cleanups: - Avoid unneeded built-in.a in DTS dirs - sc-debugfs: Re-use kstrtobool_from_user - memset.S: Reinstate delay slot indentation - VPE: Fix spelling "uneeded" -> "Unneeded" Platform support: BCM47xx: - Add support for Netgear WNR1000 V3 - firmware: Support small NVRAM partitions - Use __initdata for LEDs platform data Ingenic: - Watchdog driver & platform code improvements: - Disable clock after stopping counter - Use devm_* functions - Drop module remove function - Move platform reset code to restart handler in driver - JZ4740: Convert watchdog instantiation to DT - JZ4780: Fix watchdog DT node - qi_lb60_defconfig: Enable watchdog driver Microsemi: - Ocelot: Add support for integrated switch - pcb123: Connect phys to ports" * tag 'mips_4.18' of git://git.kernel.org/pub/scm/linux/kernel/git/mips/linux: (30 commits) MAINTAINERS: Add Paul Burton as MIPS co-maintainer MIPS: ptrace: Make FPU context layout comments match reality MIPS: memset.S: Reinstate delay slot indentation MIPS: perf: Fix perf with MT counting other threads MIPS: perf: Use correct VPE ID when setting up VPE tracing MIPS: perf: More robustly probe for the presence of per-tc counters MIPS: Probe for MIPS MT perf counters per TC MIPS: mscc: Connect phys to ports on ocelot_pcb123 MIPS: mscc: Add switch to ocelot MIPS: JZ4740: Drop old platform reset code MIPS: qi_lb60: Enable the jz4740-wdt driver MIPS: JZ4780: dts: Fix watchdog node MIPS: JZ4740: dts: Add bindings for the jz4740-wdt driver watchdog: JZ4740: Drop module remove function watchdog: JZ4740: Register a restart handler watchdog: JZ4740: Use devm_* functions watchdog: JZ4740: Disable clock after stopping counter MIPS: VPE: Fix spelling mistake: "uneeded" -> "unneeded" MIPS: Re-use kstrtobool_from_user() MIPS: Convert update_persistent_clock() to update_persistent_clock64() ...
| * MIPS: ptrace: Make FPU context layout comments match realityMaciej W. Rozycki2018-05-241-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Correct comments across ptrace(2) handlers about an FPU register context layout discrepancy between MIPS I and later ISAs, which was fixed with `linux-mips.org' (LMO) commit 42533948caac ("Major pile of FP emulator changes."), the fix corrected with LMO commit 849fa7a50dff ("R3k FPU ptrace() handling fixes."), and then broken and fixed over and over again, until last time fixed with commit 80cbfad79096 ("MIPS: Correct MIPS I FP context layout"). NB running the GDB test suite for the relevant ABI/ISA and watching out for regressions is advisable when poking around ptrace(2). Signed-off-by: Maciej W. Rozycki <macro@mips.com> Cc: Ralf Baechle <ralf@linux-mips.org> Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/19326/ Signed-off-by: James Hogan <jhogan@kernel.org>
* | MIPS: ptrace: Fix PTRACE_PEEKUSR requests for 64-bit FGRsMaciej W. Rozycki2018-05-241-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Use 64-bit accesses for 64-bit floating-point general registers with PTRACE_PEEKUSR, removing the truncation of their upper halves in the FR=1 mode, caused by commit bbd426f542cb ("MIPS: Simplify FP context access"), which inadvertently switched them to using 32-bit accesses. The PTRACE_POKEUSR side is fine as it's never been broken and continues using 64-bit accesses. Fixes: bbd426f542cb ("MIPS: Simplify FP context access") Signed-off-by: Maciej W. Rozycki <macro@mips.com> Cc: Ralf Baechle <ralf@linux-mips.org> Cc: linux-mips@linux-mips.org Cc: <stable@vger.kernel.org> # 3.15+ Patchwork: https://patchwork.linux-mips.org/patch/19334/ Signed-off-by: James Hogan <jhogan@kernel.org>
* | MIPS: Fix ptrace(2) PTRACE_PEEKUSR and PTRACE_POKEUSR accesses to o32 FGRsMaciej W. Rozycki2018-05-141-2/+2
|/ | | | | | | | | | | | | | Check the TIF_32BIT_FPREGS task setting of the tracee rather than the tracer in determining the layout of floating-point general registers in the floating-point context, correcting access to odd-numbered registers for o32 tracees where the setting disagrees between the two processes. Fixes: 597ce1723e0f ("MIPS: Support for 64-bit FP with O32 binaries") Signed-off-by: Maciej W. Rozycki <macro@mips.com> Cc: Ralf Baechle <ralf@linux-mips.org> Cc: linux-mips@linux-mips.org Cc: <stable@vger.kernel.org> # 3.14+ Signed-off-by: James Hogan <jhogan@kernel.org>
* MIPS/ptrace: Update syscall nr on register changesJames Hogan2017-11-091-0/+7
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Update the thread_info::syscall field when registers are modified via ptrace to change or cancel the system call being entered. This is important to allow seccomp and the syscall entry and exit trace events to observe the new syscall number changed by the normal ptrace hook or seccomp. That includes allowing seccomp's recheck of the system call number after SECCOMP_RET_TRACE to notice if the syscall is changed to a denied one, which happens in seccomp since commit ce6526e8afa4 ("seccomp: recheck the syscall after RET_TRACE") in v4.8. In the process of doing this, the logic to determine whether an indirect system call is in progress (i.e. the O32 ABI's syscall()) is abstracted into mips_syscall_is_indirect(), and a new mips_syscall_update_nr() is used to update the thread_info::syscall based on the register state. The following ptrace operations are updated: - PTRACE_SETREGS (ptrace_setregs()). - PTRACE_SETREGSET with NT_PRSTATUS (gpr32_set() and gpr64_set()). - PTRACE_POKEUSR with 2/v0 or 4/a0 for indirect syscall ([compat_]arch_ptrace()). Fixes: c2d9f1775731 ("MIPS: Fix syscall_get_nr for the syscall exit tracing.") Signed-off-by: James Hogan <jhogan@kernel.org> Cc: Ralf Baechle <ralf@linux-mips.org> Cc: Lars Persson <larper@axis.com> Cc: Oleg Nesterov <oleg@redhat.com> Cc: Kees Cook <keescook@chromium.org> Cc: Andy Lutomirski <luto@amacapital.net> Cc: Will Drewry <wad@chromium.org> Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/16995/
* sched/headers: Prepare for new header dependencies before moving code to ↵Ingo Molnar2017-03-021-0/+1
| | | | | | | | | | | | | | | | | | | | <linux/sched/task_stack.h> We are going to split <linux/sched/task_stack.h> out of <linux/sched.h>, which will have to be picked up from other headers and a couple of .c files. Create a trivial placeholder <linux/sched/task_stack.h> file that just maps to <linux/sched.h> to make this patch obviously correct and bisectable. Include the new header in the files that are going to need it. Acked-by: Linus Torvalds <torvalds@linux-foundation.org> Cc: Mike Galbraith <efault@gmx.de> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: linux-kernel@vger.kernel.org Signed-off-by: Ingo Molnar <mingo@kernel.org>
* Replace <asm/uaccess.h> with <linux/uaccess.h> globallyLinus Torvalds2016-12-241-1/+1
| | | | | | | | | | | | | This was entirely automated, using the script by Al: PATT='^[[:blank:]]*#[[:blank:]]*include[[:blank:]]*<asm/uaccess.h>' sed -i -e "s!$PATT!#include <linux/uaccess.h>!" \ $(git grep -l "$PATT"|grep -v ^include/linux/uaccess.h) to do the replacement at the end of the merge window. Requested-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* ptrace: Don't allow accessing an undumpable mmEric W. Biederman2016-11-221-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | It is the reasonable expectation that if an executable file is not readable there will be no way for a user without special privileges to read the file. This is enforced in ptrace_attach but if ptrace is already attached before exec there is no enforcement for read-only executables. As the only way to read such an mm is through access_process_vm spin a variant called ptrace_access_vm that will fail if the target process is not being ptraced by the current process, or the current process did not have sufficient privileges when ptracing began to read the target processes mm. In the ptrace implementations replace access_process_vm by ptrace_access_vm. There remain several ptrace sites that still use access_process_vm as they are reading the target executables instructions (for kernel consumption) or register stacks. As such it does not appear necessary to add a permission check to those calls. This bug has always existed in Linux. Fixes: v1.0 Cc: stable@vger.kernel.org Reported-by: Andy Lutomirski <luto@amacapital.net> Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com>
* mm: replace access_process_vm() write parameter with gup_flagsLorenzo Stoakes2016-10-191-2/+3
| | | | | | | | | | | | | | | This removes the 'write' argument from access_process_vm() and replaces it with 'gup_flags' as use of this function previously silently implied FOLL_FORCE, whereas after this patch callers explicitly pass this flag. We make this explicit as use of FOLL_FORCE can result in surprising behaviour (and hence bugs) within the mm subsystem. Signed-off-by: Lorenzo Stoakes <lstoakes@gmail.com> Acked-by: Jesper Nilsson <jesper.nilsson@axis.com> Acked-by: Michal Hocko <mhocko@suse.com> Acked-by: Michael Ellerman <mpe@ellerman.id.au> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* MIPS: Remove asm/user.hAlex Smith2014-08-021-1/+1
| | | | | | | | | | | | The struct user definition in this file is not used anywhere (the ELF core dumper does not use that format). Therefore, remove the header and instead enable the asm-generic user.h which is an empty header to satisfy a few generic headers which still try to include user.h. Signed-off-by: Alex Smith <alex@alex-smith.me.uk> Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/7459/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
* MIPS: ptrace: Fix user pt_regs definition, use in ptrace_{get, set}regs()Alex Smith2014-08-021-2/+4
| | | | | | | | | | | | | | | | | | | | In uapi/asm/ptrace.h, a user version of pt_regs is defined wrapped in ifndef __KERNEL__. This structure definition does not match anything used by any kernel API, in particular it does not match the format used by PTRACE_{GET,SET}REGS. Therefore, replace the structure definition with one matching what is used by PTRACE_{GET,SET}REGS. The format used by these is the same for both 32-bit and 64-bit. Also, change the implementation of PTRACE_{GET,SET}REGS to use this new structure definition. The structure is renamed to user_pt_regs when __KERNEL__ is defined to avoid conflicts with the kernel's own pt_regs. Signed-off-by: Alex Smith <alex@alex-smith.me.uk> Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/7457/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
* MIPS: ptrace: Avoid smp_processor_id() when retrieving FPU IRAlex Smith2014-07-301-1/+1
| | | | | | | | | | | | | Whenever ptrace attempts to retrieve the FPU implementation register it accesses it through current_cpu_data, which calls smp_processor_id(). Since the code may execute with preemption enabled, this can trigger a warning. Fix this by using boot_cpu_data to get the IR instead. Signed-off-by: Alex Smith <alex@alex-smith.me.uk> Cc: <stable@vger.kernel.org> # v3.15+ Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/7449/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
* MIPS: Simplify PTRACE_PEEKUSR for FPC_EIRPaul Burton2014-03-311-39/+3
| | | | | | | | | | | | | | | | | All architecturally defined bits in the FPU implementation register are read only & unchanging. It contains some implementation-defined bits but the architecture manual states "This bits are explicitly not intended to be used for mode control functions" which seems to provide justification for viewing the register as a whole as unchanging. This being the case we can simply re-use the value we read at boot rather than having to re-read it later, and avoid the complexity which that read entails. Signed-off-by: Paul Burton <paul.burton@imgtec.com> Reviewed-by: Qais Yousef <qais.yousef@imgtec.com> Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/6144/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
* MIPS: Simplify FP context accessPaul Burton2014-03-261-17/+8
| | | | | | | | | | | | | | | | This patch replaces the fpureg_t typedef with a "union fpureg" enabling easier access to 32 & 64 bit values. This allows the access macros used in cp1emu.c to be simplified somewhat. It will also make it easier to expand the width of the FP registers as will be done in a future patch in order to support the 128 bit registers introduced with MSA. No behavioural change is intended by this patch. Signed-off-by: Paul Burton <paul.burton@imgtec.com> Reviewed-by: Qais Yousef <qais.yousef@imgtec.com> Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/6532/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
* MIPS: Support for 64-bit FP with O32 binariesPaul Burton2014-01-131-22/+31
| | | | | | | | | | | | | | | | | | | | | | | | | | | | CPUs implementing MIPS32 R2 may include a 64-bit FPU, just as MIPS64 CPUs do. In order to preserve backwards compatibility a 64-bit FPU will act like a 32-bit FPU (by accessing doubles from the least significant 32 bits of an even-odd pair of FP registers) when the Status.FR bit is zero, again just like a mips64 CPU. The standard O32 ABI is defined expecting a 32-bit FPU, however recent toolchains support use of a 64-bit FPU from an O32 MIPS32 executable. When an ELF executable is built to use a 64-bit FPU a new flag (EF_MIPS_FP64) is set in the ELF header. With this patch the kernel will check the EF_MIPS_FP64 flag when executing an O32 binary, and set Status.FR accordingly. The addition of O32 64-bit FP support lessens the opportunity for optimisation in the FPU emulator, so a CONFIG_MIPS_O32_FP64_SUPPORT Kconfig option is introduced to allow this support to be disabled for those that don't require it. Inspired by an earlier patch by Leonid Yegoshin, but implemented more cleanly & correctly. Signed-off-by: Paul Burton <paul.burton@imgtec.com> Cc: linux-mips@linux-mips.org Cc: Paul Burton <paul.burton@imgtec.com> Patchwork: https://patchwork.linux-mips.org/patch/6154/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
* MIPS: Whitespace cleanup.Ralf Baechle2013-02-011-1/+1
| | | | | | | | Having received another series of whitespace patches I decided to do this once and for all rather than dealing with this kind of patches trickling in forever. Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
* Disintegrate asm/system.h for MIPSDavid Howells2012-03-281-1/+0
| | | | | | | | Disintegrate asm/system.h for MIPS. Signed-off-by: David Howells <dhowells@redhat.com> Acked-by: Ralf Baechle <ralf@linux-mips.org> cc: linux-mips@linux-mips.org
* headers: smp_lock.h reduxAlexey Dobriyan2009-07-121-1/+0
| | | | | | | | | | | | | * Remove smp_lock.h from files which don't need it (including some headers!) * Add smp_lock.h to files which do need it * Make smp_lock.h include conditional in hardirq.h It's needed only for one kernel_locked() usage which is under CONFIG_PREEMPT This will make hardirq.h inclusion cheaper for every PREEMPT=n config (which includes allmodconfig/allyesconfig, BTW) Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* MIPS: 64-bit: Use generic 32-bit ptrace compat code.Anirban Sinha2009-01-111-63/+1
| | | | | Signed-off-by: Anirban Sinha <asinha@zeugmasystems.com> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
* MIPS: Move ptrace prototypes to ptrace.hRalf Baechle2008-10-111-6/+0
| | | | Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
* MIPS: Ptrace support for HARDWARE_WATCHPOINTSDavid Daney2008-10-111-0/+10
| | | | | | | | | This is the final part of the watch register patch. Here we hook up ptrace so that the user space debugger (gdb), can set and read the registers. Signed-off-by: David Daney <ddaney@avtrex.com> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
* MIPS: Use compat_sys_ptraceThomas Bogendoerfer2008-10-111-35/+8
| | | | | | | | This replaces mips's sys_ptrace32 with a compat_arch_ptrace and enables the new generic definition of compat_sys_ptrace instead. Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
* [MIPS] Store sign-extend register values for PTRACE_GETREGSAtsushi Nemoto2007-10-291-2/+2
| | | | | | | | | A comment on ptrace_getregs() states "Registers are sign extended to fill the available space." but it is not true. Fix code to match the comment. Also fix casts on each caller to get rid of some warnings. Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
* [MIPS] Fix "no space between function name and open parenthesis" warnings.Ralf Baechle2007-10-111-8/+8
| | | | Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
* [MIPS] Make sure cpu_has_fpu is used only in atomic contextAtsushi Nemoto2006-10-091-1/+2
| | | | | | | | Make sure cpu_has_fpu (which uses smp_processor_id()) is used only in atomic context. Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
* [MIPS] Unify mips_fpu_soft_struct and mips_fpu_hard_structs.Atsushi Nemoto2006-06-191-11/+5
| | | | | | | | | The struct mips_fpu_soft_struct and mips_fpu_hard_struct are completely same now and the kernel fpu emulator assumes that. This patch unifies them to mips_fpu_struct and get rid of mips_fpu_union. Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
* [MIPS] MT: Improved multithreading support.Ralf Baechle2006-04-191-0/+14
| | | | Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
* [MIPS] Sparse: Fix some compiler/sparse warnings in ptrace32.cAtsushi Nemoto2006-02-071-7/+15
| | | | | Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
* [PATCH] mips: task_thread_info()Al Viro2006-01-121-2/+2
| | | | | | Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] mips: task_pt_regs()Al Viro2006-01-121-4/+2
| | | | | | Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* MIPS: DSP: eleminate used_dsp.Ralf Baechle2006-01-101-6/+2
| | | | | | | | | used_dsp was meant to be used like used_math - but since the FPU context is small and lazy context switching is a stupid idea on multiprocessors this idea only got halfway implemented and those bits are were now breaking ptrace. Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
* [PATCH] use ptrace_get_task_struct in various placesChristoph Hellwig2006-01-081-20/+6
| | | | | | | | | | | | | | | | The ptrace_get_task_struct() helper that I added as part of the ptrace consolidation is useful in variety of places that currently opencode it. Switch them to the common helpers. Add a ptrace_traceme() helper that needs to be explicitly called, and simplify the ptrace_get_task_struct() interface. We don't need the request argument now, and we return the task_struct directly, using ERR_PTR() for error returns. It's a bit more code in the callers, but we have two sane routines that do one thing well now. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* Protect manipulation of c0_status against preemption and multithreading.Ralf Baechle2005-10-291-4/+16
| | | | Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
* Revise MIPS 64-bit ptrace interfaceDaniel Jacobowitz2005-10-291-0/+81
| | | | | | | | Change the N32 debugging ABI to something more sane, and add support for o32 and n32 debuggers to trace n64 programs. Signed-off-by: Daniel Jacobowitz <dan@codesourcery.com> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
* Support the MIPS32 / MIPS64 DSP ASE.Ralf Baechle2005-10-291-0/+38
| | | | Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
* NPTL, round one.Ralf Baechle2005-10-291-0/+5
| | | | Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
* 32-bit compatibility for ptrace GETEVENTMSG operation.Ralf Baechle2005-10-291-1/+5
| | | | Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
* [PATCH] convert that currently tests _NSIG directly to use valid_signal()Jesper Juhl2005-05-011-1/+2
| | | | | | | | | Convert most of the current code that uses _NSIG directly to instead use valid_signal(). This avoids gcc -W warnings and off-by-one errors. Signed-off-by: Jesper Juhl <juhl-lkml@dif.dk> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* Linux-2.6.12-rc2v2.6.12-rc2Linus Torvalds2005-04-161-0/+285
Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
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