summaryrefslogtreecommitdiff
path: root/src/arch/arm/linux/process.cc
AgeCommit message (Collapse)Author
2016-02-13syscall_emul: Implement clock_getres() system callMichael LeBeane
This patch implements the clock_getres() system call for arm and x86 in linux SE mode.
2015-05-26arm: Implement some missing syscalls (SE mode)Giacomo Gabrielli
Adding a few syscalls that were previously considered unimplemented.
2015-05-05syscall_emul: fix warn_once behaviorSteve Reinhardt
The current ignoreWarnOnceFunc doesn't really work as expected, since it will only generate one warning total, for whichever "warn-once" syscall is invoked first. This patch fixes that behavior by keeping a "warned" flag in the SyscallDesc object, allowing suitably flagged syscalls to warn exactly once per syscall.
2015-01-03arm: Add unlinkat syscall implementationmike upton
added ARM aarch64 unlinkat syscall support, modeled on other <xxx>at syscalls. This gets all of the cpu2006 int workloads passing in SE mode on aarch64. Committed by: Nilay Vaish <nilay@cs.wisc.edu>
2014-10-22sim: revert 6709bbcf564dNilay Vaish
The identifier SYS_getdents is not available on Mac OS X. Therefore, its use results in compilation failure. It seems there is no straight forward way to implement the system call getdents using readdir() or similar C functions. Hence the commit 6709bbcf564d is being rolled back.
2014-10-20sim: implement getdents/getdents64 in user modeMichael Adler
Has been tested only for alpha. Committed by: Nilay Vaish <nilay@cs.wisc.edu>
2014-04-17sim, arm: implement more of the at variety syscallsAli Saidi
Needed for new AArch64 binaries
2014-01-28arm: Enable umask syscall in SE modeMitch Hayenga
Committed by: Nilay Vaish <nilay@cs.wisc.edu>
2014-01-24arm: Add support for ARMv8 (AArch64 & AArch32)ARM gem5 Developers
Note: AArch64 and AArch32 interworking is not supported. If you use an AArch64 kernel you are restricted to AArch64 user-mode binaries. This will be addressed in a later patch. Note: Virtualization is only supported in AArch32 mode. This will also be fixed in a later patch. Contributors: Giacomo Gabrielli (TrustZone, LPAE, system-level AArch64, AArch64 NEON, validation) Thomas Grocutt (AArch32 Virtualization, AArch64 FP, validation) Mbou Eyole (AArch64 NEON, validation) Ali Saidi (AArch64 Linux support, code integration, validation) Edmund Grimley-Evans (AArch64 FP) William Wang (AArch64 Linux support) Rene De Jong (AArch64 Linux support, performance opt.) Matt Horsnell (AArch64 MP, validation) Matt Evans (device models, code integration, validation) Chris Adeniyi-Jones (AArch64 syscall-emulation) Prakash Ramrakhyani (validation) Dam Sunwoo (validation) Chander Sudanthi (validation) Stephan Diestelhorst (validation) Andreas Hansson (code integration, performance opt.) Eric Van Hensbergen (performance opt.) Gabe Black
2013-01-08arm: add access syscall for ARM SE modeMitch Hayenga
This patch adds the "access" syscall for ARM SE as required by some spec2006 benchmarks.
2012-08-06syscall emulation: Enabled getrlimit and getrusage for x86.Marc Orr
Added/moved rlimit constants to base linux header file. This patch is a revised version of Vince Weaver's earlier patch.
2012-06-29ARM: Update version of linux we claim to be to 3.0.0.Ali Saidi
Static binaries generated with new versions of libc complain that the kernel is too old otherwise.
2012-02-24MEM: Make port proxies use references rather than pointersAndreas Hansson
This patch is adding a clearer design intent to all objects that would not be complete without a port proxy by making the proxies members rathen than dynamically allocated. In essence, if NULL would not be a valid value for the proxy, then we avoid using a pointer to make this clear. The same approach is used for the methods using these proxies, such as loadSections, that now use references rather than pointers to better reflect the fact that NULL would not be an acceptable value (in fact the code would break and that is how this patch started out). Overall the concept of "using a reference to express unconditional composition where a NULL pointer is never valid" could be done on a much broader scale throughout the code base, but for now it is only done in the locations affected by the proxies.
2012-01-17MEM: Add port proxies instead of non-structural portsAndreas Hansson
Port proxies are used to replace non-structural ports, and thus enable all ports in the system to correspond to a structural entity. This has the advantage of accessing memory through the normal memory subsystem and thus allowing any constellation of distributed memories, address maps, etc. Most accesses are done through the "system port" that is used for loading binaries, debugging etc. For the entities that belong to the CPU, e.g. threads and thread contexts, they wrap the CPU data port in a port proxy. The following replacements are made: FunctionalPort > PortProxy TranslatingPort > SETranslatingPortProxy VirtualPort > FSTranslatingPortProxy --HG-- rename : src/mem/vport.cc => src/mem/fs_translating_port_proxy.cc rename : src/mem/vport.hh => src/mem/fs_translating_port_proxy.hh rename : src/mem/translating_port.cc => src/mem/se_translating_port_proxy.cc rename : src/mem/translating_port.hh => src/mem/se_translating_port_proxy.hh
2011-10-22SE: move page allocation from PageTable to ProcessSteve Reinhardt
PageTable supported an allocate() call that called back through the Process to allocate memory, but did not have a method to map addresses without allocating new pages. It makes more sense for Process to do the allocation, so this method was renamed allocateMem() and moved to Process, and uses a new map() call on PageTable. The remaining uses of the process pointer in PageTable were only to get the name and the PID, so by passing these in directly in the constructor, we can make PageTable completely independent of Process.
2011-04-15includes: sort all includesNathan Binkert
2011-04-10ARM: Fix checkpoint restoration in ARM_SE.Ali Saidi
2011-04-10ARM: Get rid of some comments/todos that no longer apply.Ali Saidi
2011-03-17ARM: Add minimal ARM_SE support for m5threads.Chris Emmons
Updated some of the assembly code sequences to use armv7 instructions and coprocessor 15 for storing the TLS pointer.
2010-06-02ARM: Fix SPEC2000 benchmarks in SE mode. With this patch allAli Saidi
Spec2k benchmarks seem to run with atomic or timing mode simple CPUs. Fixed up some constants, handling of 64 bit arguments, and marked a few more syscalls ignoreFunc.
2010-06-02ARM: fix sizes of structs for ARM LinuxAli Saidi
2010-06-02ARM: Fixup native trace support and add some v7/recent stack codeAli Saidi
2010-06-02ARM: Implement the getrusage syscall.Ali Saidi
2010-06-02ARM: Allow ARM processes to start in Thumb mode.Gabe Black
2009-10-30Syscalls: Make system calls access arguments like a stack, not an array.Gabe Black
When accessing arguments for a syscall, the position of an argument depends on the policies of the ISA, how much space preceding arguments took up, and the "alignment" of the index for this particular argument into the number of possible storate locations. This change adjusts getSyscallArg to take its index parameter by reference instead of value and to adjust it to point to the possible location of the next argument on the stack, basically just after the current one. This way, the rules for the new argument can be applied locally without knowing about other arguments since those have already been taken into account implicitly. All system calls have also been changed to reflect the new interface. In a number of cases this made the implementation clearer since it encourages arguments to be collected in one place in order and then used as necessary later, as opposed to scattering them throughout the function or using them in place in long expressions. It also discourages using getSyscallArg over and over to retrieve the same value when a temporary would do the job.
2009-09-15Syscalls: Implement sysinfo() syscall.Vince Weaver
2009-07-29ARM: Fix an instruction in the cmpxchg kernel provided routine.Gabe Black
The instruction was encoded as a load instead of the intended store.
2009-07-29ARM: Get rid of a stray line in the set_tls handler.Gabe Black
2009-07-29ARM: Ignore the "times" system call.Ali Saidi
2009-07-27ARM: Fix fstat/fstat64 structs to match EABI definitions.Ali Saidi
2009-07-27ARM: Handle register indexed system calls.Ali Saidi
2009-06-09ARM: Hook in the mmap2 system call. Make ArmLinuxProcess handle 5,6 syscall ↵Gabe Black
params.
2009-06-09ARM: Add a memory_barrier function to the "comm page".Gabe Black
This function doesn't actually provide a memory barrier (I don't think they're implemented) and instead just returns.
2009-06-09ARM: Add a cmpxchg implementation to the "comm page".Gabe Black
This implementation does what it's supposed to (I think), but it's not atomic and doesn't have memory barriers like the kernel's version.
2009-06-09ARM: Implement TLS. This is not tested.Gabe Black
2009-06-09ARM: Make ArmLinuxProcess understand "ARM private" system calls.Gabe Black
2009-06-09ARM: Update the kernel version M5 reports to 2.6.16.19Gabe Black
2009-04-06Merge ARM into the head. ARM will compile but may not actually work.Gabe Black
2009-04-05arm: add ARM support to M5Stephen Hines