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2016-06-02Fix some license headers.Richard Braun
As the original author of the files imported, I explicitely dual license them to something compatible with GPLv2. kern/macros.h: Switch license from GPLv3 to BSD 2-clause. kern/rdxtree_i.h: Likewise.
2015-09-07kern: fix loop reading the time valueJustus Winter
Previously, recent versions of gcc would hoist the loads out of the loop reading the time value. * kern/macros.h (access_once): New macro. * kern/mach_clock.c (host_get_time): Use the new macro to prevent the loads from being hoisted out of the loop.
2015-08-15Avoid re-defining macrosJustus Winter
* kern/macros.h: Avoid re-defining macros. * linux/src/include/linux/compiler-gcc.h: Likewise. * linux/src/include/linux/compiler.h: Likewise.
2015-05-19kern: import `macros.h' from x15Justus Winter
Import the macro definitions from the x15 kernel project, and replace all similar definitions littered all over the place with it. Importing this file will make importing code from the x15 kernel easier. We are already using the red-black tree implementation and the slab allocator from it, and we will import even more code in the near future. * kern/list.h: Do not define `structof', include `macros.h' instead. * kern/rbtree.h: Likewise. * kern/slab.c: Do not define `ARRAY_SIZE', include `macros.h' instead. * i386/grub/misc.h: Likewise. * i386/i386/xen.h: Do not define `barrier', include `macros.h' instead. * kern/macro_help.h: Delete file. Replaced by `macros.h'. * kern/macros.h: New file. * Makefrag.am (libkernel_a_SOURCES): Add new file, remove old file. * device/dev_master.h: Adopt accordingly. * device/io_req.h: Likewise. * device/net_io.h: Likewise. * i386/intel/read_fault.c: Likewise. * ipc/ipc_kmsg.h: Likewise. * ipc/ipc_mqueue.h: Likewise. * ipc/ipc_object.h: Likewise. * ipc/ipc_port.h: Likewise. * ipc/ipc_space.h: Likewise. * ipc/ipc_splay.c: Likewise. * ipc/ipc_splay.h: Likewise. * kern/assert.h: Likewise. * kern/ast.h: Likewise. * kern/pc_sample.h: Likewise. * kern/refcount.h: Likewise. * kern/sched.h: Likewise. * kern/sched_prim.c: Likewise. * kern/timer.c: Likewise. * kern/timer.h: Likewise. * vm/vm_fault.c: Likewise. * vm/vm_map.h: Likewise. * vm/vm_object.h: Likewise. * vm/vm_page.h: Likewise.