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2019-02-08kern,sim: implement FUTEX_WAKE_OPMoyang Wang
This patch implements FUTEX_WAKE_OP operation in the futex syscall. Below is its description: int futex(int *uaddr, int futex_op, int val, const struct timespec *timeout, int *uaddr2, int val3); This operation was added to support some user-space use cases where more than one futex must be handled at the same time. The most notable example is the implementation of pthread_cond_signal(3), which requires operations on two futexes, the one used to implement the mutex and the one used in the implementation of the wait queue associated with the condition variable. FUTEX_WAKE_OP allows such cases to be implemented without leading to high rates of contention and context switching. Reference: http://man7.org/linux/man-pages/man2/futex.2.html Change-Id: I215f3c2a7bdc6374e5dfe06ee721c76933a10f2d Reviewed-on: https://gem5-review.googlesource.com/c/9630 Reviewed-by: Jason Lowe-Power <jason@lowepower.com> Reviewed-by: Brandon Potter <Brandon.Potter@amd.com> Maintainer: Jason Lowe-Power <jason@lowepower.com>
2019-02-08sim, kern: support FUTEX_CMP_REQUEUEMoyang Wang
This patch supports FUTEX_CMP_REQUEUE operation. Below is its description from Linux man page: futex syscall: int futex(int *uaddr, int futex_op, int val, const struct timespec *timeout, int *uaddr2, int val3); This operation first checks whether the location uaddr still contains the value val3. If not, the operation fails with the error EAGAIN. Otherwise, the operation wakes up a maximum of val waiters that are waiting on the futex at uaddr. If there are more than val waiters, then the remaining waiters are removed from the wait queue of the source futex at uaddr and added to the wait queue of the target futex at uaddr2. The val2 argument specifies an upper limit on the number of waiters that are requeued to the futex at uaddr2. Reference: http://man7.org/linux/man-pages/man2/futex.2.html Change-Id: I6d2ebd19a935b656d19d8342f7ab450c0d2031f4 Reviewed-on: https://gem5-review.googlesource.com/c/9629 Reviewed-by: Brandon Potter <Brandon.Potter@amd.com> Maintainer: Brandon Potter <Brandon.Potter@amd.com>
2019-02-08sim: handle the case when there're not enough HW thread contextsTuan Ta
In SE mode, since there's no OS scheduler, the number of active SW threads is limited by the number of HW thread contexts. Previously, if there is no spare HW thread context, the simulator just fails and stops. Instead, this patch returns EAGAIN error code from a clone syscall if there's no available HW thread context. Then it's up to the simulated program to handle the error. Linux man page reference: http://man7.org/linux/man-pages/man2/clone.2.html http://man7.org/linux/man-pages/man2/fork.2.html Change-Id: Ib4e092433e49de4dde376c8cb81f7d3f7851cbc0 Reviewed-on: https://gem5-review.googlesource.com/c/9628 Reviewed-by: Brandon Potter <Brandon.Potter@amd.com> Maintainer: Brandon Potter <Brandon.Potter@amd.com>
2019-02-08sim,kern: support FUTEX_WAIT_BITSET and FUTEX_WAKE_BITSET opsTuan Ta
This patch adds support for two operations in futex system call: FUTEX_WAIT_BITSET and FUTEX_WAKE_BITSET. The two operations are used to selectively wake up a certain thread waiting on a futex variable. Basically each thread waiting on a futex variable is associated with a bitset that is checked when another thread tries to wake up all threads waiting on the futex variable. Change-Id: I2300e53b144d8fae226423fa2efb0238c1d93ef9 Reviewed-on: https://gem5-review.googlesource.com/c/9621 Reviewed-by: Brandon Potter <Brandon.Potter@amd.com> Maintainer: Brandon Potter <Brandon.Potter@amd.com>
2019-02-06sim: added missed macro definition on MacOSAndrea Mondelli
A recent patch add the use of the macro: CMSG_ALIGN This macro is not very cross-platform, and needs to be defined according to the platform. This patch defines the missing macro on MacOS. Change-Id: I582f69e652dc060b4532358141179ad6d37eafc7 Reviewed-on: https://gem5-review.googlesource.com/c/16102 Reviewed-by: Jason Lowe-Power <jason@lowepower.com> Maintainer: Brandon Potter <Brandon.Potter@amd.com>
2019-01-22sim-se add readv and modifies writevBrandon Potter
Change-Id: I6cbce4389d5697da34058dc910306394e48c6582 Reviewed-on: https://gem5-review.googlesource.com/c/12117 Reviewed-by: Anthony Gutierrez <anthony.gutierrez@amd.com> Maintainer: Anthony Gutierrez <anthony.gutierrez@amd.com>
2019-01-22sim-se: add ability to get/set sock metadataBrandon Potter
Add getsockopt, getsockname, setsockname, and getpeername system calls. Change-Id: Ifa1d9a95f15b4fb12859dbfd3c4bd248de2e3d32 Reviewed-on: https://gem5-review.googlesource.com/c/12116 Reviewed-by: Anthony Gutierrez <anthony.gutierrez@amd.com> Maintainer: Anthony Gutierrez <anthony.gutierrez@amd.com>
2019-01-22sim-se: add syscalls related to pollingBrandon Potter
Fix poll so that it will use the syscall retry capability instead of causing a blocking call. Add the accept and wait4 system calls. Add polling to read to remove deadlocks that occur in the event queue that are caused by blocking system calls. Modify the write system call to return an error number in case of error. Change-Id: I0b4091a2e41e4187ebf69d63e0088f988f37d5da Reviewed-on: https://gem5-review.googlesource.com/c/12115 Reviewed-by: Anthony Gutierrez <anthony.gutierrez@amd.com> Maintainer: Anthony Gutierrez <anthony.gutierrez@amd.com>
2019-01-22sim-se: add calls for network transmissionsBrandon Potter
Add recvfrom, sendto, recvmsg, and sendmsg system calls. Change-Id: I2eb50ea7823c8af57d99b3b8d443d2099418c06c Reviewed-on: https://gem5-review.googlesource.com/c/12114 Reviewed-by: Anthony Gutierrez <anthony.gutierrez@amd.com> Maintainer: Anthony Gutierrez <anthony.gutierrez@amd.com>
2019-01-22sim-se: add socket-based functionalityBrandon Potter
Add socket, socketpair, bind, list, connect and shutdown system calls. Change-Id: I635af3fca410f96fe28f8fe497e3d457a9dbc470 Reviewed-on: https://gem5-review.googlesource.com/c/12113 Reviewed-by: Anthony Gutierrez <anthony.gutierrez@amd.com> Maintainer: Anthony Gutierrez <anthony.gutierrez@amd.com>
2019-01-16cpu: dev: sim: gpu-compute: Banish some ISA specific register types.Gabe Black
These types are IntReg, FloatReg, FloatRegBits, and MiscReg. There are some remaining types, specifically the vector registers and the CCReg. I'm less familiar with these new types of registers, and so will look at getting rid of them at some later time. Change-Id: Ide8f76b15c531286f61427330053b44074b8ac9b Reviewed-on: https://gem5-review.googlesource.com/c/13624 Reviewed-by: Gabe Black <gabeblack@google.com> Maintainer: Gabe Black <gabeblack@google.com>
2019-01-10sim-se, arch-arm: Add support for getdents64Javier Setoain
Change-Id: Ib27950144d4c9802ffb842db98aec9e433ccbfc5 Signed-off-by: Andreas Sandberg <andreas.sandberg@arm.com> Cc: Giacomo Travaglini <giacomo.travaglini@arm.com> Cc: Javier Setoain <javier.setoain@arm.com> Cc: Brandon Potter <Brandon.Potter@amd.com> Reviewed-on: https://gem5-review.googlesource.com/c/15438 Maintainer: Brandon Potter <Brandon.Potter@amd.com> Reviewed-by: Jason Lowe-Power <jason@lowepower.com>
2019-01-10sim-se: Refactor clone to avoid most ifdefsAndreas Sandberg
Some parts of clone are architecture dependent. In some cases, we are able to use architecture-specific helper functions or register aliases. However, there is still some architecture-specific that is protected by ifdefs in the common clone implementation. Move these architecture-specific bits to the architecture-specific OS class instead to avoid these ifdefs and make the code a bit more readable. Change-Id: Ia0903d738d0ba890863bddfa77e3b717db7f45de Signed-off-by: Andreas Sandberg <andreas.sandberg@arm.com> Cc: Giacomo Travaglini <giacomo.travaglini@arm.com> Cc: Javier Setoain <javier.setoain@arm.com> Cc: Brandon Potter <Brandon.Potter@amd.com> Reviewed-on: https://gem5-review.googlesource.com/c/15435 Reviewed-by: Jason Lowe-Power <jason@lowepower.com> Maintainer: Brandon Potter <Brandon.Potter@amd.com>
2019-01-10sim-se: Correctly calculate next PC in cloneAndreas Sandberg
The clone syscall doesn't propagate all state in the PCState object when calculating the return PC of a newly created process. Instead of creating a new PCState object from the next PC address, copy the old PC and advance it. Change-Id: Ice53831920bcb5d198865169ed2cca8d06e37cfe Signed-off-by: Andreas Sandberg <andreas.sandberg@arm.com> Cc: Giacomo Travaglini <giacomo.travaglini@arm.com> Cc: Javier Setoain <javier.setoain@arm.com> Cc: Brandon Potter <Brandon.Potter@amd.com> Reviewed-on: https://gem5-review.googlesource.com/c/15417 Reviewed-by: Jason Lowe-Power <jason@lowepower.com> Maintainer: Brandon Potter <Brandon.Potter@amd.com>
2019-01-10sim-se: Use CONFIG_CLONE_BACKWARDS for ArmAndreas Sandberg
Linxu on Arm users the CLONE_BACKWARDS argument order for the clone syscall. Change-Id: I48deb4f03140c9d4ef7a89e3e33813e76777f999 Signed-off-by: Andreas Sandberg <andreas.sandberg@arm.com> Cc: Giacomo Travaglini <giacomo.travaglini@arm.com> Cc: Javier Setoain <javier.setoain@arm.com> Cc: Brandon Potter <Brandon.Potter@amd.com> Reviewed-on: https://gem5-review.googlesource.com/c/15416 Reviewed-by: Brandon Potter <Brandon.Potter@amd.com> Reviewed-by: Jason Lowe-Power <jason@lowepower.com> Maintainer: Brandon Potter <Brandon.Potter@amd.com>
2018-11-27sim-se: only implement getdentsFunc on supported hostsCiro Santilli
The implementation of the getdents syscall relies on SYS_getdents, which is not available on all archs, because the getdents syscall has been superseded by getdents64, and does not exist on newer archs such as aarch64. This leads the build to break on aarch64 hosts with error: error: 'SYS_getdents' was not declared in this scope Change-Id: I8701fb5b61c0418b14a9463ef135a391a7f7a9ba Reviewed-on: https://gem5-review.googlesource.com/c/14596 Reviewed-by: Brandon Potter <Brandon.Potter@amd.com> Maintainer: Brandon Potter <Brandon.Potter@amd.com>
2018-10-30syscall_emul: fix openat when directory does not end in "/"Ciro Santilli
Before this commit, the following code: dir_fd = open(".", O_DIRECTORY); file_fd = openat(dir_fd, "ble", O_CREAT, S_IRUSR | S_IWUSR); would create a file called ".ble" in the current working directory, instead of the correct "ble". Change-Id: I1525a088d49744e29b760387afabef9f1ac98646 Reviewed-by: Andreas Sandberg <andreas.sandberg@arm.com> Reviewed-on: https://gem5-review.googlesource.com/c/13005 Reviewed-by: Brandon Potter <Brandon.Potter@amd.com> Maintainer: Brandon Potter <Brandon.Potter@amd.com>
2018-09-19syscall_emul: implement dir-related syscallsBrandon Potter
Add getdents, rmdir, chdir, and mknod to SE mode for x86. Change-Id: I387ea3066869e8999bc0064f74070f4e47c1e9a1 Reviewed-on: https://gem5-review.googlesource.com/12112 Reviewed-by: Jason Lowe-Power <jason@lowepower.com> Maintainer: Anthony Gutierrez <anthony.gutierrez@amd.com>
2018-06-25syscall_emul: adding symlink system callMatt Sinclair
Change-Id: Iebda05c130b4d2ee8434cad1e703933bfda486c8 Reviewed-on: https://gem5-review.googlesource.com/11490 Reviewed-by: Jason Lowe-Power <jason@lowepower.com> Maintainer: Jason Lowe-Power <jason@lowepower.com>
2018-06-25syscall_emul: adding link system callMatt Sinclair
Change-Id: If8922c2233bbe1f6fce35f64d1a44b91d2cfeed2 Reviewed-on: https://gem5-review.googlesource.com/11489 Reviewed-by: Jason Lowe-Power <jason@lowepower.com> Maintainer: Brandon Potter <Brandon.Potter@amd.com>
2018-03-15sim-se: Fix fallthrough in prlimitJason Lowe-Power
Change-Id: Ieec4651000b3b4de05ba5ba11fdfa5392a5477e7 Signed-off-by: Jason Lowe-Power <jason@lowepower.com> Reviewed-on: https://gem5-review.googlesource.com/8904 Reviewed-by: Gabe Black <gabeblack@google.com> Maintainer: Brandon Potter <Brandon.Potter@amd.com>
2018-01-23tarch, mem: Abstract the data stored in the SE page tables.Gabe Black
Rather than store the actual TLB entry that corresponds to a mapping, we can just store some abstracted information (address, a few flags) and then let the caller turn that into the appropriate entry. There could potentially be some small amount of overhead from creating entries vs. storing them and just installing them, but it's likely pretty minimal since that only happens on a TLB miss (ideally rare), and, if it is problematic, there could be some preallocated TLB entries which are just minimally filled in as necessary. This has the nice effect of finally making the page tables ISA agnostic. Change-Id: I11e630f60682f0a0029b0683eb8ff0135fbd4317 Reviewed-on: https://gem5-review.googlesource.com/7350 Reviewed-by: Gabe Black <gabeblack@google.com> Maintainer: Gabe Black <gabeblack@google.com>
2018-01-10arch-riscv,sim: Support clone syscall in RISC-VTuan Ta
(1) This patch sets a correct order of clone syscall's arguments for RISC-V. Linux kernel 4.15 uses CLONE_BACKWARDS flag by default for RISC-V. The flag in the Linux kernel defines the list of clone syscall's arguments in the following order: clone_flags (flags) newsp (newStack) parent_tidptr (ptidPtr) tls (tlsPtr) child_tidptr (ctidPtr) Code reference: https://github.com/riscv/riscv-linux/blob/master/kernel/fork.c https://github.com/riscv/riscv-linux/blob/master/arch/riscv/Kconfig (2) This patch copies a parent thread's register values to its child thread in clone syscall. Change-Id: I2eb1c8e80990861080ce7153503ed784fb2c7bdf Reviewed-on: https://gem5-review.googlesource.com/6904 Maintainer: Brandon Potter <Brandon.Potter@amd.com> Reviewed-by: Alec Roelke <ar4jc@virginia.edu>
2018-01-05sim: Fix a bug in prlimit syscall in SE modeTuan Ta
The old_limit pointer is supposed to be the 4th argument (index 3) of the prlimit syscall. This patch sets old_limit pointer to the correct argument. Change-Id: I97808f7234cd2622cb3eb2f1e0beb7fc8cf492c1 Reviewed-on: https://gem5-review.googlesource.com/6903 Reviewed-by: Alec Roelke <ar4jc@virginia.edu> Maintainer: Brandon Potter <Brandon.Potter@amd.com>
2017-12-04misc: Rename misc.(hh|cc) to logging.(hh|cc)Gabe Black
These files aren't a collection of miscellaneous stuff, they're the definition of the Logger interface, and a few utility macros for calling into that interface (panic, warn, etc.). Change-Id: I84267ac3f45896a83c0ef027f8f19c5e9a5667d1 Reviewed-on: https://gem5-review.googlesource.com/6226 Reviewed-by: Brandon Potter <Brandon.Potter@amd.com> Maintainer: Gabe Black <gabeblack@google.com>
2017-11-06sim-se: Add prlimit system callAlec Roelke
Some ISAs (namely RISC-V) implement getrlimit and setrlimit using prlimit. This patch adds an implementation for the prlimit system call. Normally prlimit is supposed to provide the functionality of both getrlimit and setrlimit, but because gem5 does not support setrlimit this implementation of prlimit will simply display a warning and return a failure code if the setrlimit mode is used. The same thing will happen if a pid other than 0 is passed to it. Change-Id: I653af2d5a60e716f4d6286196be7600409efcef8 Reviewed-on: https://gem5-review.googlesource.com/5321 Maintainer: Brandon Potter <Brandon.Potter@amd.com> Reviewed-by: Jason Lowe-Power <jason@lowepower.com>
2017-09-28sim-se: Fix mremap for downward growing mmap regionsRico Amslinger
mremapFunc(...) did not respect Process::mmapGrowsDown(). This resulted in an attempt to remap into an already allocated region and a panic in FuncPageTable::allocate(...). This behavior can be observed in 435.gromacs. Change-Id: Ib3ad33816126c76506d69679bdcefa7a98ef69f9 Reviewed-on: https://gem5-review.googlesource.com/4700 Reviewed-by: Jason Lowe-Power <jason@lowepower.com> Maintainer: Brandon Potter <Brandon.Potter@amd.com>
2017-05-19base, sim, arch: Fix clang 5.0 warningsAndreas Sandberg
Compiling gem5 with recent version of clang (4 and 5) triggers warnings that are treated as errors: * Global templatized static functions result in a warning if they are not used. These should either be declared as static inline or without the static identifier to avoid the warning. * Some templatized classes contain static variables. The instantiated versions of these variables / templates need to be explicitly declared to avoid a compiler warning. Change-Id: Ie8261144836e94ebab7ea04ccccb90927672c257 Signed-off-by: Andreas Sandberg <andreas.sandberg@arm.com> Reviewed-by: Curtis Dunham <curtis.dunham@arm.com> Reviewed-on: https://gem5-review.googlesource.com/3420 Reviewed-by: Jason Lowe-Power <jason@lowepower.com>
2017-05-12syscall_emul: Fix undefined macro behaviorAndreas Sandberg
Clang's UBSAN implementation complains about macros that expand to expressions that contain 'defined'. Explicitly set the various feature macros to 1 or 0 to avoid this issue. Change-Id: Iba239dacfe526c43ab9c5da5183a350fc4fdc57d Signed-off-by: Andreas Sandberg <andreas.sandberg@arm.com> Reviewed-by: Andreas Hansson <andreas.hansson@arm.com> Reviewed-by: Curtis Dunham <curtis.dunham@arm.com> Reviewed-on: https://gem5-review.googlesource.com/3241
2017-03-09style: change NULL to nullptr in syscall filesBrandon Potter
Change-Id: I02719f3572f6665cace1eb5681f297dcde9e71ce Reviewed-on: https://gem5-review.googlesource.com/2271 Reviewed-by: Andreas Sandberg <andreas.sandberg@arm.com> Reviewed-by: Michael LeBeane <Michael.Lebeane@amd.com> Reviewed-by: Tony Gutierrez <anthony.gutierrez@amd.com> Maintainer: Jason Lowe-Power <jason@lowepower.com>
2017-03-09syscall-emul: Rewrite system call exit codeBrandon Potter
The changeset does a major refactor on the exit, exit_group, and futex system calls regarding exit functionality. A FutexMap class and related structures are added into a new file. This increases code clarity by encapsulating the futex operations and the futex state into an object. Several exit conditions were added to allow the simulator to end processes under certain conditions. Also, the simulation only exits now when all processes have finished executing. Change-Id: I1ee244caa9b5586fe7375e5b9b50fd3959b9655e Reviewed-on: https://gem5-review.googlesource.com/2269 Maintainer: Jason Lowe-Power <jason@lowepower.com> Reviewed-by: Jason Lowe-Power <jason@lowepower.com>
2017-03-09syscall-emul: Add the tgkill system callBrandon Potter
This changeset adds support to kill a thread group by calling the tgkill system call. The functionality is needed in some pthread applications. Change-Id: I0413a3331be69b74dfab30de95384113ec4efb63 Reviewed-on: https://gem5-review.googlesource.com/2268 Maintainer: Jason Lowe-Power <jason@lowepower.com> Reviewed-by: Tony Gutierrez <anthony.gutierrez@amd.com> Reviewed-by: Michael LeBeane <Michael.Lebeane@amd.com>
2017-03-09syscall-emul: Add or extend dup, dup2, and pipeBrandon Potter
This changeset extends the pipe system call to work with architectures other than Alpha (and enables the syscall for x86). For the dup system call, it sets the clone-on-exec flag by default. For the dup2 system call, the changeset adds an implementation (and enables it for x86). Change-Id: I00ddb416744ee7dd61a5cd02c4c3d97f30543878 Reviewed-on: https://gem5-review.googlesource.com/2266 Maintainer: Jason Lowe-Power <jason@lowepower.com> Reviewed-by: Tony Gutierrez <anthony.gutierrez@amd.com> Reviewed-by: Michael LeBeane <Michael.Lebeane@amd.com>
2017-03-09syscall-emul: Add functionality to open syscallsBrandon Potter
This changeset adds refactors the existing open system call, adds the openat variant (enabled for x86 builds), and adds additional "special file" test cases for /proc/meminfo and /etc/passwd. Change-Id: I6f429db65bbf2a28ffa3fd12df518c2d0de49663 Reviewed-on: https://gem5-review.googlesource.com/2265 Maintainer: Jason Lowe-Power <jason@lowepower.com> Reviewed-by: Tony Gutierrez <anthony.gutierrez@amd.com> Reviewed-by: Michael LeBeane <Michael.Lebeane@amd.com>
2017-03-09style: Correct some style issuesBrandon Potter
This changeset fixes line alignment issues, spacing, spelling, etc. for files that are used during SE Mode. Change-Id: Ie61b8d0eb4ebb5af554d72f1297808027833616e Reviewed-on: https://gem5-review.googlesource.com/2264 Maintainer: Jason Lowe-Power <jason@lowepower.com> Reviewed-by: Tony Gutierrez <anthony.gutierrez@amd.com> Reviewed-by: Michael LeBeane <Michael.Lebeane@amd.com> Reviewed-by: Andreas Sandberg <andreas.sandberg@arm.com> Reviewed-by: Pierre-Yves Péneau <pierre-yves.peneau@lirmm.fr>
2017-03-09syscall-emul: Move memState into its own fileBrandon Potter
The Process class is full of implementation details and structures related to SE Mode. This changeset factors out an internal class from Process and moves it into a separate file. The purpose behind doing this is to clean up the code and make it a bit more modular. Change-Id: Ic6941a1657751e8d51d5b6b1dcc04f1195884280 Reviewed-on: https://gem5-review.googlesource.com/2263 Reviewed-by: Jason Lowe-Power <jason@lowepower.com> Reviewed-by: Andreas Sandberg <andreas.sandberg@arm.com> Maintainer: Andreas Sandberg <andreas.sandberg@arm.com>
2017-02-27syscall_emul: [PATCH 15/22] add clone/execve for threading and multiprocess ↵Brandon Potter
simulations Modifies the clone system call and adds execve system call. Requires allowing processes to steal thread contexts from other processes in the same system object and the ability to detach pieces of process state (such as MemState) to allow dynamic sharing.
2017-02-27syscall_emul: [patch 14/22] adds identifier system callsBrandon Potter
This changeset add fields to the process object and adds the following three system calls: setpgid, gettid, getpid.
2015-07-20syscall_emul: [patch 11/22] extend functionality of fcntlBrandon Potter
This changeset adds the ability to set a close-on-exec flag for a given file descriptor. It also reworks some of the logic surrounding setting and retrieving flags from the file description.
2016-11-09syscall_emul: [patch 10/22] refactor fdentry and add fdarray classBrandon Potter
Several large changes happen in this patch. The FDEntry class is rewritten so that file descriptors now correspond to types: 'File' which is normal file-backed file with the file open on the host machine, 'Pipe' which is a pipe that has been opened on the host machine, and 'Device' which does not have an open file on the host yet acts as a pseudo device with which to issue ioctls. Other types which might be added in the future are directory entries and sockets (off the top of my head). The FDArray class was create to hold most of the file descriptor handling that was stuffed into the Process class. It uses shared pointers and the std::array type to hold the FDEntries mentioned above. The changes to these two classes needed to be propagated out to the rest of the code so there were quite a few changes for that. Also, comments were added where I thought they were needed to help others and extend our DOxygen coverage.
2016-11-09syscall_emul: [patch 5/22] remove LiveProcess class and use Process insteadBrandon Potter
The EIOProcess class was removed recently and it was the only other class which derived from Process. Since every Process invocation is also a LiveProcess invocation, it makes sense to simplify the organization by combining the fields from LiveProcess into Process.
2017-02-09sim: Patch to fix the statfs buildBjoern A. Zeeb
See developers mailing list. Trying to unbreak statfs. Testing Done: Builds on FreeBSD now. Reviewed at http://reviews.gem5.org/r/3803/ Signed-off-by: Jason Lowe-Power <jason@lowepower.com>
2016-11-09style: [patch 3/22] reduce include dependencies in some headersBrandon Potter
Used cppclean to help identify useless includes and removed them. This involved erroneously included headers, but also cases where forward declarations could have been used rather than a full include.
2017-01-20syscall_emul: #ifdef new system calls to allow builds on OSX and BSDBrandon Potter
2016-11-09syscall_emul: [patch 2/22] move SyscallDesc into its own .hh and .ccBrandon Potter
The class was crammed into syscall_emul.hh which has tons of forward declarations and template definitions. To clean it up a bit, moved the class into separate files and commented the class with doxygen style comments. Also, provided some encapsulation by adding some accessors and a mutator. The syscallreturn.hh file was renamed syscall_return.hh to make it consistent with other similarly named files in the src/sim directory. The DPRINTF_SYSCALL macro was moved into its own header file with the include the Base and Verbose flags as well. --HG-- rename : src/sim/syscallreturn.hh => src/sim/syscall_return.hh
2016-12-15syscall_emul: implement fallocateBrandon Potter
2016-12-15syscall_emul: add support for x86 statfs system callsBrandon Potter
2016-12-15syscall_emul: extend sysinfo system call to include mem_unitBrandon Potter
2016-09-13sim, syscall_emul: Add mmap to EmulatedDriverMichael LeBeane
Add support for calling mmap on an EmulatedDriver file descriptor.
2016-08-05sim: fix issues with pwrite(); don't enable fstatfsTony Gutierrez
this patch fixes issues with changeset 11593 use the host's pwrite() syscall for pwrite64Func(), as opposed to pwrite64(), because pwrite64() does not work well on all distros. undo the enabling of fstatfs, as we will add this in a separate pate.
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