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| OS/161 was written by David A. Holland, with contributions from | |
| Amos Blackman | |
| Alexandra Fedorova | |
| Ada T. Lim | |
| Georgi Matev | |
| Jay Moorthi | |
| Geoffrey Werner-Allen | |
| Additional small patches and bug reports have been contributed by | |
| various other people, all of whom are (hopefully) listed below. | |
| ------------------------------------------------------------ | |
| OS/161 2.0.3 released 20160124 | |
| ------------------------------ | |
| 20170124 dholland in base | |
| - Remove obsolete, redundant, or not useful test programs: | |
| guzzle (same as hog) | |
| kitchen (equivalent to multiexec -n 4 sink) | |
| sink (same as conman) | |
| sty (equivalent to multiexec -n 6 hog) | |
| quinthuge (offers little over triplehuge, can be done with multiexec) | |
| quintmat, quintsort (ditto) | |
| 20170118 dholland in base | |
| - Make -g -Og the flags when "debug" is enabled in a kernel config | |
| (which it is in the non-OPT ones) and add an additional kernel | |
| config verb "debugonly" to get just -g in case that becomes | |
| necessary. This should significantly improve the output code | |
| quality from gcc without compromising debugging. (However, gcc | |
| being gcc, it also sometimes leads to additional spurious | |
| warnings that don't occur with either -g or -O2.) | |
| 20170118 dholland in base | |
| - Add a MI mainbus_debugger() function that goes through the right | |
| MD paths to trigger the debugger hook in the ltrace device. Also | |
| add a menu function "debug" to trigger it. | |
| 20170118 dholland in base | |
| - Add some bits to forktest to try to catch the case where the fork | |
| child returns from the next system call instead of from fork. | |
| (Which is a moderately common bug, caused by races copying the | |
| trapframe information in the kernel.) | |
| 20170117 dholland in base | |
| - Add a menu command "deadlock" to intentionally deadlock. | |
| 20170117 dholland in base, from Sam Fishman | |
| - Fix parallelvm -w so that if one of the forks fails the whole | |
| thing doesn't wedge. | |
| 20170117 dholland in base, reported by Sam Fishman | |
| - Don't do semfs I/O from NULL, or from/to insufficiently sized | |
| buffers. Like the 20150615 change, except covering the rest of | |
| the tests that use the semaphores that were doing it wrong: | |
| multiexec, parallelvm, and schedpong. | |
| 20170117 dholland in base, from Sam Fishman | |
| - Add assembler directives to exception-mips1.S that tell gdb how | |
| to read trap frames correctly. Garbage-collect old stuff left | |
| over from making it work with a (much) older version of gdb a | |
| long time back. This also usually makes it possible to trace back | |
| through a syscall into a userlevel process; include a gdb script | |
| with tools for making this useful. | |
| 20170117 dholland in base | |
| - Merge the deadlock detector into base. It was a success last year. | |
| - Mention in the comments that the hangman hooks in locks need to | |
| be called atomically. | |
| 20170117 dholland in base, reported by Jeffrey Cai, patch from Sam Fishman | |
| - Fix off-by-one in tac that makes it skip the first line of files. | |
| 20170117 dholland in base, from Sam Fishman | |
| - Make badcall's "pipe with unaligned pointer" test clean up after | |
| itself if the operation succeeds. Otherwise it leaks fds and that | |
| can intefere with other tests. | |
| 20170116 dholland in base, reported by Sam Fishman | |
| - Don't allow opening an entirely empty pathname to succeed, and | |
| don't allow success for this case in badcall either. | |
| 20170116 dholland in base, from Sasha Fedorova | |
| - Fix write buffer size in filetest. | |
| 20160325 dholland in base | |
| - Fix macro parenthesis bug in ROUNDUP(). | |
| 20160304 dholland in base, from Sam Fishman | |
| - Make runtest.py handle spacing in the command strings it's given. | |
| 20160216 dholland in base | |
| - Fix spacing problems in ls -l output for large files. | |
| 20160203 dholland in base | |
| - Expand comments attached to cpustacks[]/cputhreads[], prompted by | |
| James Mickens. | |
| 20160125 dholland in base, from Nikhil Benesch. | |
| - Fix stupid argument handling bug in test.py. | |
| OS/161 2.0.2 released 20160112 | |
| ------------------------------ | |
| 20160112 dholland in base | |
| - Add vfs_swapon() and vfs_swapoff() functions. These are like | |
| vfs_mount() and vfs_unmount(), except for devices to be used for | |
| swap. Using these instead of just opening the raw device causes | |
| them to be tagged busy, so that accidentally using the same disk | |
| for swap and a file system will fail. | |
| 20160112 dholland in base | |
| - Kill off vm_tlbshootdown_all() and VM_TLBSHOOTDOWN_ALL. While | |
| there's nothing wrong per se with doing a TLB shootdown that | |
| invalidates all mappings, coalescing multiple pending TLB | |
| shootdown requests into a single all-mappings request requires at | |
| least MD logic, which the oversimplified scheme here didn't | |
| support. In practice TLB shootdown requires synchronization, and | |
| the coalescing scheme made it unsafe to put synchronization hooks | |
| (that might get dropped) into struct tlbshootdown. Instead leave | |
| behind a comment suggesting steps to take if the TLB shootdown | |
| queue ever actually overflows in practice, which isn't that | |
| likely. | |
| 20160112 dholland in base, reported by Sam Fishman | |
| - In thread_make_runnable, don't send unidle IPIs to curcpu. | |
| 20160111 dholland in base | |
| - Provide some simple test automation logic, and install it in | |
| $(OSTREE)/testscripts. It uses Python and pexpect, so provide | |
| some suitable infrastructure for handling that. | |
| 20160111 dholland in base | |
| - Have "make clean" in a man directory do nothing instead of failing. | |
| 20160107 dholland in base | |
| - Don't take vfs_biglock in vnode_check(). It isn't safe (e.g. it | |
| can deadlock when paging once you have a VM system) and the | |
| things vnode_check() looks at are supposed to be constant fields | |
| anyway. If they aren't actually constant because of bugs, reading | |
| a stale or even garbage value is not going to hurt more. | |
| 20160107 dholland in deadlock-detector | |
| - Add a deadlock detector. For now this will be supplied to | |
| instructors as a supplementary patch, because it intrudes into | |
| the synchronization primitives and affects what students do | |
| there. We are planning to try it on our students this coming | |
| semester; if that works out well, I'll probably merge it into | |
| base. | |
| 20160107 dholland in base | |
| - In testbin/multiexec, if fork fails partway through, continue | |
| with the forks we got. Otherwise the subprocesses we started hang | |
| around forever, and there's no way to kill them. | |
| 20160106 dholland in all | |
| - New format for CHANGES that admits longer descriptions, and that | |
| deals better with having many branches and patches. | |
| - Merge all the branch CHANGES.* files into the main CHANGES, as | |
| having multiple CHANGES files was never desirable. | |
| OS/161 2.0.1 released 20150805 | |
| ------------------------------ | |
| 20150804 dholland in base | |
| - Improve multiexec's error reporting. | |
| 20150804 dholland in base | |
| - Minor fixes to frack check. | |
| 20150722 dholland in base | |
| - Add assertions to dumbvm to check that sleeping is ok in various | |
| contexts where real VM systems typically sleep. | |
| 20150722 dholland in base | |
| - Initialize curcpu/curthread a bit earlier. | |
| 20150721 dholland in base | |
| - Remove proc->p_threads[] array. Just count the number of threads | |
| in each proc. This is enough to get going on, and it's easy for | |
| students to add and synchronize an explicit array of threads | |
| themselves if they want it. (It needs a sleeplock; but by that | |
| point they'll have those. We don't out of the box though.) | |
| 20150713 dholland in base | |
| - Make all sfs prints/panics include the volume name. | |
| 20150713 dholland in base | |
| - Have sfsck print invalid inode type values instead of just saying | |
| "invalid". | |
| 20150713 dholland in base | |
| - Have forktest print ABCD instead of 1234 for clarity. | |
| 20150713 dholland in base | |
| - Kill off allwchans[]; in practice it isn't useful. | |
| 20150710 dholland in base | |
| - Split out the pieces of sfs_sync for reusability. | |
| 20150706 dholland in base | |
| - Add support for new sys161 profiler control registers. | |
| 20150625 dholland in base | |
| - Fix frack "writetruncseq" workload. | |
| 20150605 dholland in base | |
| - Have semfs update uio_offset; increases robustness. | |
| - Don't do semfs I/O from NULL. It causes consternation. | |
| 20150605 dholland in base | |
| - Warn that copying threadlist structures breaks them. | |
| 20150605 dholland in base | |
| - New test: schedpong, an actual scheduler workload, now possible | |
| because we have semfs. | |
| 20150603 dholland in base | |
| - Add example unit tests for the provided semaphores. | |
| 20150603 dholland in base | |
| - In panic, drop to the debugger before sync, not after. Otherwise, | |
| the sync complicates postmortem analysis. Also, for file system | |
| panics it often deadlocks. | |
| 20150603 dholland in base | |
| - Make "dumpsfs -i N -a image" work. | |
| 20150603 dholland in base | |
| - Make kernel config script reject duplicate .o names. | |
| 20150603 dholland in base | |
| - Improve the printouts of testbin/badcall. | |
| - Improve printouts of testbin/crash for legibility. | |
| 20150528 dholland in base | |
| - Comment up testbin/frack/check.c. Badly needed. | |
| 20150527 dholland in base, from Keno Fischer. | |
| - Fix various minor bugs found by clang-static-analyzer. | |
| 20150527 dholland in base | |
| - Make the skeleton userland stdio less needlessly dumb. | |
| 20150527 dholland in base | |
| - New kernel menu test: at2; tests arrays > 1 page. | |
| 20150519 dholland in base | |
| - New test: bigfork, intended mostly for performance testing. | |
| 20150513 dholland in base | |
| - Fix "unexpected EOF" bug in frack check. | |
| - Fix flagrantly wrong assert in frack check. | |
| - Fix fd leaks in frack check. | |
| 20150428 dholland in base, from Sam Fishman and Michelle Deng. | |
| - Fix error-path assertions in sfs_domount. | |
| 20150422 dholland in base | |
| - Re-enable ftruncate in frack by default. | |
| 20150417 dholland in base, from Nikhil Benesch. | |
| - Fix configure test for ntohll. | |
| 20150417 dholland in base, from Nikhil Benesch. | |
| - Use printf instead of echo -n in shell scripts; it seems that | |
| even in 2015 Mac OS X comes with a broken echo, and we don't care | |
| about host OSes too old to have printf in sh. | |
| 20150322 dholland in base, from Anne Madoff. | |
| - Fix typos in non-dumbvm addrspace.h. | |
| 20150322 dholland in base | |
| - Fix some typos in comments. | |
| 20150127 dholland in base | |
| - Patch more Linux build problems caused by glibc bugs. | |
| OS/161 2.0 released 20150115 | |
| ---------------------------- | |
| 20150113 dholland in base | |
| - Drop to the debugger on panic. | |
| 20150113 dholland in base | |
| - Document parallelvm -w. | |
| 20150113 dholland in base, from Katherine Flavel. | |
| - Better man page typesetting. | |
| 20150108 dholland in base | |
| - Fix FSOP_GETROOT signature/usage so it can fail. | |
| 20150108 dholland in base | |
| - Add several missing man pages for testbin programs. | |
| 20150108 dholland in base | |
| - Fix naming of semaphores in testbin/multiexec. | |
| 20150107 dholland in base | |
| - Rename kern/malloctest.c to kmalloctest.c for clarity. | |
| - Also change malloctest* symbols to kmalloctest*. | |
| 20140924 dholland in base | |
| - Print the kernel build number after linking. | |
| OS/161 1.99.08 released 20140924 | |
| -------------------------------- | |
| Consider this 2.0-RC1. | |
| 20140924 dholland in base | |
| - Make km3 rotate object sizes as originally intended. | |
| 20140924 dholland in base | |
| - Make frack print a visible divider when it syncs. | |
| 20140922 dholland in base | |
| - Add /bin/tac, which uses unlinked scratch files. | |
| 20140919 dholland in base | |
| - Allow giving testbin/bigfile the chunk size to write. | |
| 20140919 dholland in base | |
| - Add a design doc about the structure of assignments. | |
| 20140919 dholland in base | |
| - Make certain sfsck checks set the exit status properly. | |
| 20140918 dholland in base | |
| - Provide general-purpose metadata I/O function in sfs. | |
| 20140916 dholland in base | |
| - Remove size workaround in bigexec; the solution set is now fixed. | |
| 20140904 dholland in base | |
| - Fix problem with stray symlinks in $(OSTREE)/include. | |
| 20140904 dholland in base | |
| - Change sfs_vnode->sv_v to sv_absvn for consistency. | |
| 20140904 dholland in base | |
| - Add bloat test; it uses all available memory rapidly. | |
| 20140904 dholland in base | |
| - Fix testbin/crash for gcc 4.8. | |
| 20140904 dholland in base | |
| - Make testbin/filetest do something useful if given no argv. | |
| 20140904 dholland in base | |
| - Add sys/cdefs.h and move userland __DEAD there. | |
| - Declare userland err* __DEAD. | |
| 20140903 dholland in base | |
| - Simplify ram.c interface as suggested by several of my students. | |
| 20140829 dholland in base | |
| - Add km4: a kmalloc test for multipage allocations. | |
| 20140829 dholland in base | |
| - Add multiexec test for lots of procs in exec at once. | |
| 20140828 dholland in base | |
| - Fix inlining for gcc 4.8, and a few other build issues. | |
| - Tighten asm constraints for gcc 4.8. | |
| 20140825 dholland in base | |
| - Remove DEVOP_LASTCLOSE; nothing uses it and we will never add | |
| rewind-on-close tape devices. | |
| - Don't fsync in sfs_lastclose; it's outdated practice. | |
| - Remove VOP_LASTCLOSE; nothing uses it any more. | |
| - Remove vnode open count and VOP_INC/DECOPEN. | |
| 20140825 dholland in base | |
| - Use a separate spinlock for vnode refcounts. (Using vfs_biglock | |
| causes sleeping while holding spinlocks.) | |
| 20140825 dholland in base | |
| - Don't use sfs_io() for directory entries. | |
| 20140821 dholland in base | |
| - Replace VOP_TRYSEEK with static VOP_ISSEEKABLE. | |
| 20140821 dholland in base | |
| - Make devices check seek position validity on the fly. | |
| 20140806 dholland in base, from Anne Madoff. | |
| - Make sfs_link reject directories. | |
| 20140730 dholland in base | |
| - Make testbin/hog run longer. | |
| 20140729 dholland in base | |
| - Make psort big enough to be useful as a fs test. | |
| - Document psort's sizing knobs. | |
| 20140729 dholland in base | |
| - Add ARRAYCOUNT() macro for static array length. | |
| 20140729 dholland in base | |
| - Add array_preallocate(). | |
| 20140729 dholland in base | |
| - Make npages argument of alloc_kpages() unsigned. | |
| 20140729 dholland in base | |
| - Tidy up construction/destruction of struct sfs_fs. | |
| 20140728 dholland in base | |
| - Make sfs_read/writeblock take the buffer length. (One should | |
| always do that, even if it's really the same everywhere.) | |
| 20140728 dholland in base | |
| - struct sfs_super -> struct sfs_superblock. | |
| 20140728 dholland in base | |
| - Adjust SFS code to make it more readily extensible. | |
| 20140728 dholland in base | |
| - Rename a bunch of the SFS constants for clarity. | |
| - Always call SFS's free block bitmap the "freemap". | |
| 20140725 dholland in base | |
| - Add usemtest for checking the semfs semaphores. | |
| 20140724 dholland in base | |
| - Make failed SFS writes not increase the file size. | |
| 20140724 dholland in base | |
| - Distinguish MIPS 512M RAM limit and LAMEbus 508M limit. | |
| 20140722 dholland in base | |
| - sfs_dir -> sfs_direntry, by popular demand. | |
| 20140722 dholland in base | |
| - Add some notes about the atomicity of dup2(). | |
| 20140722 dholland in base, from Jared Pochtar. | |
| - Add notes about the limits of syscall atomicity in multithreaded | |
| processes. | |
| 20140722 dholland in base | |
| - Add redirect test to check stdin/stdout redirection. | |
| 20140722 dholland in base | |
| - Add bigseek test for checking seeks beyond 2^32. | |
| - Fix emufs handling of seek positions beyond 2^32. | |
| 20140721 dholland in base | |
| - Add file open mode checks to badcall. | |
| 20140721 dholland in base | |
| - Fix interaction of kmalloc guards and kmalloc labels. | |
| 20140721 dholland in base | |
| - Be more conservative about panic on stray interrupt. | |
| 20140721 dholland in base | |
| - Fix userland build to not belch on removed .h files. | |
| - Fix userland build to not rebuild unnecessarily. | |
| 20140721 dholland in base | |
| - In badcall, don't shout if mkdir isn't implemented. | |
| 20140717 dholland in base | |
| - Fix misleading comments and variable names in proc.c. | |
| 20140716 dholland in base | |
| - Add -w option to parallelvm to wait for forking. | |
| 20140716 dholland in base | |
| - Replace a busywait in badcall with the new user semaphores. | |
| 20140716 dholland in base | |
| - Provide userlevel semaphores via semfs filesystem. Open | |
| "sem:<name>", then use read to P() and write to V(). | |
| 20140716 dholland in base | |
| - Move the just-fail vnode op stubs to VFS. | |
| 20140710 dholland in base | |
| - Added new test program: sbrktest. | |
| 20140710 dholland in base | |
| - Ship qsort() in libc, not in sfsck's compat code. | |
| - Make the libc qsort() actually quicksort. | |
| 20140709 dholland in base | |
| - SWAP{S,L,LL} -> SWAP{16,32,64} in sfs tools. | |
| 20140709 dholland in base | |
| - Fix reversed found/expected printout in frack check. | |
| 20140518 dholland in base | |
| - Fix embarrasing sort bugs in native sfsck. | |
| 20140430 dholland in base | |
| - Add poisondisk tool for testing file system recovery. | |
| 20140428 dholland in base | |
| - Add hostcompat logic for 64-bit byte-swapping. | |
| 20140417 dholland in base | |
| - Fix testbin/zero to use page-sized sbrk calls. | |
| 20140415 dholland in base | |
| - Rewrite dumpsfs and make it much more useful. | |
| 20140414 dholland in base | |
| - Fix missing initialization of cpu->c_spinlocks. | |
| 20140410 dholland in base | |
| - Fix bug in malloc changes. Add assertion to malloctest. | |
| 20140326 dholland in base | |
| - Make userlevel malloc allocate in page-sized chunks. | |
| 20140326 dholland in base | |
| - Fix the (unused) 64-bit userlevel malloc code. | |
| 20140314 dholland in base | |
| - Make forktest show how much output is expected. | |
| 20140220 dholland in base | |
| - Add new sy4 test for CVs. | |
| 20140211 dholland in base | |
| - Tidy some logic in thread_make_runnable. | |
| 20140211 dholland in base, from Anne Madoff. | |
| - Mark threads READY when waking them. | |
| 20140201 dholland in base, reported by Emmet Jao. | |
| - Fix some outdated comments. | |
| 20140128 dholland in base | |
| - Fix default OSTREE in configure script. | |
| OS/161 1.99.07 released 20140123 | |
| -------------------------------- | |
| 20140123 dholland in base | |
| - Add "frack" test (filesystem recover and check). | |
| 20140123 dholland in base | |
| - Add factorial test that computes using execv. | |
| 20140123 dholland in base | |
| - Add fs6 test that creates lots of small files. | |
| 20140122 dholland in base | |
| - Mark enter_new_process and related code __DEAD. | |
| 20140122 dholland in base | |
| - Make the semaphore counter unsigned. | |
| 20140122 dholland in base | |
| - When kmalloc gets a page, assert that it's aligned. | |
| 20140122 dholland in base, from Christian Anderson. | |
| - Fix error leak in sfs_balloc. | |
| 20140122 dholland in base | |
| - Use ssize_t and pid_t more in unistd.h. | |
| 20140122 dholland in base | |
| - Add discussion of ARG_MAX to execv man page. | |
| 20140122 dholland in base | |
| - Add missing <stdbool.h> for userland. | |
| 20140122 dholland in base | |
| - Added sparsefile test program for making sparse files. | |
| 20140122 dholland in base | |
| - splx() needs to work before curcpu/curthread exists. | |
| 20140122 dholland in base | |
| - Clarify that proc_remthread requires splhigh. | |
| 20140115 dholland in base | |
| - Remove VOP_INIT/CLEANUP macros. Use vnode_init/cleanup. | |
| 20140115 dholland in base | |
| - Make device open/close eachopen/lastclose like vnodes. | |
| 20140115 dholland in base | |
| - Move vfs-level device ops to an ops table struct. | |
| 20140115 dholland in base | |
| - Clarify/correct comments pertaining to O_APPEND. | |
| 20140114 dholland in base | |
| - Reorganize SFS sources. | |
| 20131112 dholland in base | |
| - Reorganize sfsck sources; rework and improve sfsck. | |
| - In SFS, always provide N{,D,T}INDIRECT macros. | |
| 20131110 dholland in base | |
| - Don't use uninitialized file permissions in badcall. | |
| 20131110 dholland in base | |
| - Provide __UNUSED along with __PF and __DEAD. | |
| 20131108 dholland in base | |
| - Rearrange (and fix) hacks for _exit() returning. It now faults on | |
| "0xeeeee00f" if it can't exit. | |
| 20131107 dholland in base | |
| - Handle TLB pipeline hazards correctly. | |
| 20131107 dholland in base | |
| - Add some sample/experimental gdb scripts. | |
| 20131107 dholland in base | |
| - Make the console polling logic not use internal vars. | |
| 20131107 dholland in base | |
| - Have wchan_sleep assert if holding extra spinlocks. | |
| 20131107 dholland in base | |
| - Don't use (our) assignment numbers for kernel configs. | |
| 20131107 dholland in base | |
| - Remove the synch problems, and their support framework, from the | |
| base system. Ship this material as a patch instead. | |
| 20131107 dholland in base | |
| - Rename src/user -> src/userland. Seems to be the best choice | |
| among a number of unappealing alternatives. | |
| 20131105 dholland in base | |
| - Disallow EINVAL for "no such process" in badcall. | |
| 20131105 dholland in base | |
| - Clean up sh's use of exit codes. | |
| 20131105 dholland in base | |
| - Have testbin/crash check the signal numbers produced. | |
| 20131105 dholland in base | |
| - Create an array of all wchans for debug purposes. | |
| 20131105 dholland in base | |
| - Rearranged wchan API to make wchans more like CVs. | |
| 20131105 dholland in base | |
| - Print the processor ID and version correctly. | |
| 20131105 dholland in base | |
| - Fix boot on pre-multiprocessor System/161. | |
| 20131105 dholland in base | |
| - Parallelize the kernel depend logic. | |
| 20131104 dholland in base | |
| - Add and use memory barrier ops header. Minor impact. | |
| 20131104 dholland in base | |
| - Rename sfs_inode to sfs_dinode. | |
| 20131101 dholland in base | |
| - Edit and revise the man pages. Add some missing ones. | |
| 20131101 dholland in base | |
| - Update the docs and specs for waitpid. | |
| 20131030 dholland in base | |
| - Use execvp() in sh. Don't have to type /bin/cat now. | |
| 20131030 dholland in base | |
| - Provide getenv() and execvp() in libc. | |
| 20131030 dholland in base | |
| - enter_user_process() now accepts an environ pointer. | |
| 20131030 dholland in base | |
| - Add quinthuge, quintmat, quintsort tests. | |
| 20131030 dholland in base | |
| - Added a libtest with common stuff for testbin/. | |
| 20131030 dholland in base | |
| - Rewrite the .depend-munging script to be readable. | |
| 20131030 dholland in base | |
| - Use ENOSYS (standard) instead of EUNIMP (which isn't). | |
| 20131030 dholland in base | |
| - Fix badcall to expect wait with null status to succeed. | |
| 20131030 dholland in base | |
| - Don't use unportable function casts in sfs. | |
| 20131029 dholland in base | |
| - Add more kmalloc debugging modes and checks. | |
| - Add a memory leak detection mode to kmalloc. | |
| 20131028 dholland in base | |
| - Move the whole-filesystem ops to an ops table struct. | |
| 20131028 dholland in base | |
| - Use designated initializers for the vnode ops tables. | |
| 20131028 dholland in base | |
| - Fix the way thread_panic zaps the run queue. | |
| 20131028 dholland in base | |
| - Move memset.c to common/ for use in the kernel. | |
| 20131028 dholland in base | |
| - Mark thread_exit() __DEAD. | |
| 20131028 dholland in base | |
| - Fix addrspace handling in proc_destroy(). | |
| 20131025 dholland in base | |
| - Add another kmalloc test (km3), this one of variable size. | |
| - Improve kmalloc to support larger kernel heaps. | |
| 20131025 dholland in base | |
| - Make printf accept %zd/%zu for size_t. | |
| 20130531 dholland in base | |
| - Add tests for the threadlist code. | |
| 20130531 dholland in base, from Steven Talbot. | |
| - Fix threadlist iterators again. | |
| 20130531 dholland in base | |
| - Do thread migration *before* running the scheduler. | |
| 20130531 dholland in base | |
| - Add some more assertions to kfree. | |
| 20130531 dholland in base | |
| - Make badcall understand wait-for-any waitpid(). | |
| 20130531 dholland in base | |
| - Fix depends bug in os161.hostcompile.mk. | |
| - Put .depend files in build tree where they belong. | |
| - Provide a predepend: hook for makefiles. | |
| 20130531 dholland in base | |
| - Remove getinterval(); replace with timespec arithmetic. | |
| 20130531 dholland in base | |
| - Use struct timespec inside the kernel. | |
| 20130531 dholland in base | |
| - Move kern/startup -> kern/main, like it was in 1.x. | |
| 20130531 dholland in base | |
| - Add "zero" test; checks if the VM system zeros pages. | |
| 20130531 dholland in base | |
| - Change as_activate() to always activate curproc's AS. | |
| 20130531 dholland in base | |
| - Provide both thread and process structures by default. | |
| 20130530 dholland in base | |
| - Fix the scheme for probing LAMEbus device versions; don't require | |
| lockstep upgrades for System/161 changes. | |
| 20130530 dholland in base, from Saagar Deshpande. | |
| - Fix typo in comment. | |
| 20130530 dholland in base | |
| - Add comment warning against borrowing from dumbvm. | |
| 20130530 dholland in base | |
| - Increase DUMBVM_STACKPAGES so 64K argv blocks will fit. | |
| 20130514 dholland in base | |
| - Teach sfsck to handle dirs with invalid inode numbers. | |
| 20130503 dholland in base, reported by multiple students. | |
| - Fix another problem in the inode array in sfsck. | |
| 20130429 dholland in base | |
| - Fix sfsck bitmap-checking problem. | |
| 20130311 dholland in base | |
| - Declare panic() and badassert() noreturn. | |
| 20130308 dholland in base, found by George Kulakowski. | |
| - Fix fd leak in badcall. | |
| 20130306 dholland in base, found by David Palmer. | |
| - Fix off_t printing in randcall. | |
| 20110427 dholland in base, from Andy Brody. | |
| - Fix typo in badcall. | |
| 20110425 dholland in base, found by Jim Danz. | |
| - Fix catastrophic bug in sfsck. | |
| 20110420 dholland in base | |
| - Add new bigexec test for checking large argvs. | |
| 20110319 dholland in base | |
| - Use va_copy() in __printf. (At least if available.) | |
| 20110223 dholland in base, from Amy Tai. | |
| - array.h needs cdefs.h and lib.h. | |
| 20110127 dholland in base | |
| - Fix host-psort build problem caused by glibc on Linux. | |
| OS/161 1.99.06 released 20110126 | |
| -------------------------------- | |
| 20110126 dholland in base | |
| - Fix some parallel build problems. | |
| 20110126 dholland in base | |
| - Rename fs5 test to "long stress test". | |
| 20110126 dholland in base | |
| - Clarify that struct tlbshootdown is a placeholder. | |
| 20110126 dholland in base | |
| - Fix randcall makefile to put calls.c in the build dir. | |
| 20110126 dholland in base | |
| - VOP_OPEN -> VOP_EACHOPEN; VOP_CLOSE -> VOP_LASTCLOSE. | |
| 20110126 dholland in base | |
| - Name struct spinlock's members splk_*, not lk_*. | |
| 20110126 dholland in base | |
| - sfs_fs.c -> sfs_fsops.c, sfs_vnode.c -> sfs_vnops.c | |
| 20100819 dholland in base | |
| - Fix the stray console IRQs problem properly. This requires | |
| System/161 1.99.05 or higher. | |
| 20100819 dholland in base | |
| - Revert start/endpolling hack for stray console IRQs. (But keep | |
| the code for masking interrupts.) | |
| 20100819 dholland in base | |
| - Don't leave the IPI spinlock dangling on a panic IPI. | |
| OS/161 1.99.05 released 20100108 | |
| -------------------------------- | |
| 20100108 dholland in base | |
| - Don't cut corners with relocs in mips-exception1.S. | |
| 20100108 dholland in base | |
| - Rearrange how curthread/curcpu get defined, so the mips gdb can | |
| see curthread. | |
| 20100108 dholland in base | |
| - Disable BSS zeroing in loadelf, because VM systems should already | |
| provide zeroed pages. Make dumbvm do so. | |
| 20100108 dholland in base | |
| - Add ASST3-OPT optimizing config. | |
| 20100108 dholland in base | |
| - Add the shell's design doc to design/. | |
| - Add the usermalloc design doc to design/. | |
| 20100108 dholland in base | |
| - Fix outdated comment in start.S. | |
| 20100108 dholland in base | |
| - Move clocksleep() decl to <clock.h>. | |
| 20100107 dholland in base | |
| - Clarify various comments that seem lacking. | |
| 20090427 dholland in base, from multiple students. | |
| - Fix miscommented uio direction constants. Doh. | |
| 20090424 dholland in base | |
| - Add missing as_activate(NULL) during thread exit. | |
| 20090416 dholland in base, mostly from Robert J. Helblin and Peter Salas. | |
| - Fix err/warn vs. errx/warnx usage in various tests. | |
| 20090413 dholland in base | |
| - Use EFBIG, not EINVAL, for "file too large". | |
| - Note that this and the following few changes were committed on a | |
| separate branch for noncritical fixes that was merged after the | |
| 1.99.04 release, which went to students as a mid-semester patch. | |
| 20090402 dholland in base | |
| - Make sbrk badcall "unaligned negative" really negative. | |
| 20090402 dholland in base | |
| - Add clarifying comments to struct tlbshootdown. | |
| 20090320 dholland in base | |
| - Fix DEBUG() so it accepts zero vararg parameters. | |
| 20090214 dholland in base | |
| - Remove some references to obsolete name "md_usermode". | |
| 20090213 dholland in base | |
| - Note that wchans don't promise to be FIFO. | |
| 20090205 dholland in base | |
| - Add missing 'volatile' to spinlock.h. | |
| OS/161 1.99.04 released 20090414 | |
| -------------------------------- | |
| 20090414 dholland in base | |
| - Fix typo in kern/sfs.h. | |
| 20090414 dholland in base | |
| - Fix up testbin/psort so it works adequately on sfs. | |
| 20090413 dholland in base | |
| - Make sfsck track indirect blocks in the free map right. | |
| 20090413 dholland in base | |
| - Fix bug where sfsck chokes on size 0 directories. | |
| 20090413 dholland in base | |
| - Fix case where sfsck can't add missing . and .. entries. | |
| 20090413 dholland in base | |
| - Add sfsck, simple check/recovery tool for sfs. | |
| OS/161 1.99.03 released 20090402 | |
| -------------------------------- | |
| 20090402 dholland in base | |
| - Fix build of testbin/malloctest. | |
| 20090320 dholland in base | |
| - Check CURCPU_EXISTS in spinlock_do_i_hold. | |
| 20090313 dholland in base | |
| - Fix threadlist iterator macros. | |
| OS/161 1.99.02 released 20090219 | |
| -------------------------------- | |
| 20090219 dholland in base | |
| - Add missing W* macros with waitpid in testbin progs. | |
| 20090219 dholland in base | |
| - Work around gcc tailcall bug affecting testbin/crash. | |
| 20090219 dholland in base | |
| - Fix missing vfs_biglock ops in vfs_getcwd(). | |
| 20090219 dholland in base | |
| - Fix bad userland declaration of lseek(). | |
| 20090219 dholland in base | |
| - Fix userland .depend file generation. | |
| 20090219 dholland in base | |
| - Add join32to64 and split64to32. | |
| 20090219 dholland in base | |
| - Clarify some comments in the mips syscall.c. | |
| 20090219 dholland in base | |
| - Make stack frames in assembly code 64-bit aligned. | |
| 20090217 dholland in base | |
| - Fix some glitches in the shell. | |
| 20090210 dholland in base | |
| - Fix interrupt level management in trap handling. | |
| 20090209 dholland in base | |
| - The on-chip timers can't be used for clocksleep(). | |
| OS/161 1.99.01 released 20090203 | |
| -------------------------------- | |
| 20090202 dholland in base | |
| - Don't ever migrate curthread to another cpu. | |
| 20090202 dholland in base | |
| - Use the W* wait macros in the shell. | |
| 20090202 dholland in base | |
| - Document the W* wait macros. | |
| OS/161 1.99.00 released 20090202 | |
| -------------------------------- | |
| 20090201 dholland in base | |
| - Implement kernel-side support for the GP register. | |
| - Change kernel load address to waste less low memory. | |
| - Add an input buffer to the console device. | |
| - Fix some bugs. | |
| 20090201 dholland in base | |
| - Update man pages for 2.x. | |
| 20090201 dholland in base | |
| - Remove the built-in copy of make. Too much realism; it creates | |
| unnecessary hassles. Just ship make with the toolchain. | |
| 200901** dholland in base | |
| - Assorted major hacking to prepare first pre-2.0 tree. | |
| - Multiprocessor support. | |
| - Improve organization of source tree. | |
| - Add the shell (formerly in sol2) and user malloc (formerly in | |
| sol3) to the base system. | |
| 20081224 dholland in base | |
| - Begin importing OS/161 1.x bits. (OS/161 2.x branches off from | |
| what's projected to be OS/161 1.x release 1.12.) | |
| OS/161 1.x change log | |
| --------------------- | |
| 20090115 dholland in base | |
| - Fix wrong comment in lib.h. | |
| 20090106 dholland in base | |
| - Fix typo in error message in newvers.sh. | |
| 20080825 dholland in base | |
| - Fix typo in comment in start.S. | |
| 20080825 dholland in base, reported by Melissa O'Neill a long time ago. | |
| - Add curspl assertion to thread_yield. | |
| OS/161 1.11 released 20050913 | |
| ----------------------------- | |
| 20050907 dholland in base | |
| - Minor changes for clean build under gcc 4.0.1. | |
| 20050321 dholland in base, found by Qicheng Ma. | |
| - Add volatile to testbin/ctest. | |
| 20050307 dholland in base | |
| - Create <machine/ktypes.h> for vaddr_t/paddr_t. | |
| 20050228 dholland in base, found by R.L. West. | |
| - Some standards compliance. | |
| 20040510 dholland in base, from Lukasz Strozek. | |
| - Fix args handling in testbin/tail. | |
| 20040204 dholland in base | |
| - Be more consistent about refcounts in vfscwd.c. | |
| OS/161 1.10 released 20040203 | |
| ----------------------------- | |
| 20040203 dholland in base | |
| - Support for hosting OS/161 on Solaris. | |
| 20040202 dholland in base | |
| - Update stdarg.h for gcc 3.x; remove machine/stdarg.h. | |
| OS/161 1.09 released 20031227 | |
| ----------------------------- | |
| 20031224 dholland in base | |
| - Add missing man page for triplesort. | |
| 20031224 dholland in base | |
| - Fix failed compile in lnet.c, currently a null driver. | |
| 20031224 dholland in base | |
| - Fix badcall so it doesn't blow up on empty stdin. | |
| 20031224 dholland in base, from Hassan Sultan. | |
| - Fix argument handling in bin/ln. | |
| 20031224 dholland in base, from Brian Greenberg. | |
| - Fix link count leak in sfs_rename. | |
| 20031224 dholland in base | |
| - Fix silly use-after-free in an SFS mount error path. | |
| 20031224 dholland in base, from Mike Hamburg. | |
| - Fix unaligned sections in dumbvm. | |
| 20031224 dholland in base | |
| - Refer to assignments by content, not number, where possible. | |
| - Change "asst1probs" to "synchprobs". | |
| 20031224 dholland in base | |
| - Fix some nonsensical but working code in /bin/pwd. | |
| 20031224 dholland in base | |
| - Update stack assertions in mips/trap.c for 4k stacks. | |
| 20031224 dholland in base | |
| - Install kernels using their configuration name. | |
| 20031224 dholland in base | |
| - Clarify some aspects of the locks/CVs API. | |
| 20031224 dholland in base | |
| - Fix assorted comment typos and glitches. | |
| 20030626 dholland in base | |
| - Commit the fix for a refcounting mistake in SFS. | |
| 20030626 dholland in base | |
| - Fix glitch in one of the dup2 tests in testbin/badcall. | |
| 20030626 dholland in base | |
| - Add missing sized type in mksfs/support.h. | |
| 20030626 dholland in base | |
| - Fix "make depend" glitch in dumpsfs. | |
| 20030626 dholland in base | |
| - Fix minor off-by-one error in menu code. | |
| 20030421 dholland in base | |
| - Fix assertion failure in kernel heap dump code. | |
| 20030421 dholland in base | |
| - Fix crash in testbin/dirconc. | |
| OS/161 1.08 released 20030221 | |
| ----------------------------- | |
| Apparently sol2-1.08 was not released until 20030310. | |
| 20030309 dholland in sol2 | |
| - Make shell accept being run with argc==0. | |
| 20030309 dholland in sol2 | |
| - Add support for WNOHANG to shell. | |
| 20030221 dholland in base | |
| - Fix broken hostcompat build with some Linux libcs. | |
| 20030207 gwa/dholland in base | |
| - Fix broken ASST1 build caused by rushed release. | |
| OS/161 1.07 released 20030131 | |
| ----------------------------- | |
| 20030131 gwa in base | |
| - New assignment 1 problems for 2003. | |
| 20030129 dholland in base | |
| - Make console device full-duplex. | |
| 20030129 dholland in base | |
| - Check for short reads when loading executable headers. | |
| 20030129 dholland in base | |
| - Make rmtest a single standalone executable. | |
| 20030129 dholland in base | |
| - Make first thread stack also 4k rather than 8k. | |
| 20030129 dholland in base | |
| - Fix minor VFS bug handling multiple leading slashes. | |
| 20030129 dholland in base | |
| - Remove code duplication in triple* tests. | |
| 20030129 dholland in base | |
| - Add triplesort test (like triplemat). | |
| 20030128 dholland in base | |
| - Make f_test a single standalone executable. | |
| 20030128 dholland in base | |
| - Add t_ prefix to struct thread members for consistency. | |
| 20030128 dholland in base | |
| - bzero by words instead of bytes when properly aligned. | |
| 20030128 dholland in base | |
| - Add memcmp() to libc. | |
| 20030127 dholland in base | |
| - Minor fixes to parallelvm. | |
| OS/161 1.06 released 20030117 | |
| ----------------------------- | |
| 20030110 dholland in base | |
| - Fix bug in setjmp/longjmp. | |
| 20030110 dholland in base | |
| - Add small explanatory comment to dev/lamebus/emu.c. | |
| 20021120 dholland in base | |
| - Have configure script provide NM and HOST_NM. | |
| 20021120 dholland in base | |
| - Merge hostcompat fixes for Mac OS X. | |
| 20021001 dholland in base | |
| - Avoid undefined C behavior in atoi(). | |
| 20020920 dholland in base | |
| - Provide string names for mips trap codes. | |
| 20020920 dholland in base | |
| - Fix handling of boot-time kernel memory faults. | |
| OS/161 1.05 released 20020917 | |
| ----------------------------- | |
| 20020913 dholland in base | |
| - Created this changelog from CVS log data. | |
| 20020904 dholland in base | |
| - Cleanup/improvement for testbin/malloctest. | |
| 20020904 dholland in sol2 | |
| - Add code to shell to do timing of subprocesses. | |
| 20020904 dholland in base | |
| - Adjust prototype for __time() for hostcompat reasons. | |
| 20020904 dholland in base | |
| - Add parallelvm and dirconc to the default build. | |
| 20020904 dholland in base | |
| - Add mode to testbin/crash to fork and run everything. | |
| 20020904 dholland in base | |
| - Retry certain I/O errors in emufs and sfs. | |
| 20020904 dholland in base | |
| - Make vfs_close not fail. | |
| 20020830 dholland in base | |
| - Prohibit slashes and colons in volume names in mksfs. | |
| 20020830 dholland in base | |
| - _O_RDWRMASK -> O_ACCMODE, per POSIX. | |
| 20020830 dholland in base | |
| - Shrink kernel stacks from 8k to 4k. | |
| 20020830 dholland in base | |
| - Merge the code for the 'p' and 's' menu commands. | |
| 20020830 dholland in base | |
| - Don't use OPEN_MAX in the base system. | |
| 20020829 dholland in base | |
| - Include a copy of the error strings in the kernel. | |
| 20020829 dholland in base | |
| - Assert that spl is 0 on syscall entry and exit. | |
| 20020829 dholland in base | |
| - Fixes and new tests for testbin/badcall. | |
| 20020829 dholland in base | |
| - Add code and menu command for dumping kernel heap. | |
| 20020827 dholland in base | |
| - Close current directory at shutdown time. | |
| 20020827 dholland in base | |
| - Clear bootfs at shutdown time. | |
| 20020827 dholland in base | |
| - Remove extraneous magic argument from free_kpages(). | |
| 20020827 dholland in base | |
| - Fix dangling lock bug in emufs. | |
| 20020826 dholland in base | |
| - Man page fixes for read, write, waitpid. | |
| 20020808 dholland in base | |
| - Make Ant-32 port mostly work. | |
| 20020625 dholland in base | |
| - Kernel makefile tweak for stupid makes. | |
| 20020618 dholland in base | |
| - Fixes to the Ant-32 port. | |
| 20020617 dholland in base | |
| - Update the (unreleased) Ant-32 port. | |
| 20020523 dholland in base | |
| - Make matmult exit 1 on failure. | |
| 20020523 dholland in base | |
| - Fix various forking userlevel tests to wait properly. | |
| 20020523 dholland in base | |
| - Check for short reads when loading executables. | |
| 20020523 dholland in base | |
| - Fix bug in tt3 test. | |
| 20020523 dholland in base | |
| - Some make/build fixes. | |
| 20020523 dholland in base | |
| - More mips calling conventions fixes. | |
| 20020522 dholland in base | |
| - Fix bug in new mips exception code. | |
| 20020522 dholland in base | |
| - Revamp testbin/badcall. | |
| 20020515 dholland in base | |
| - Various accumulated minor cleanups and fixes. | |
| 20020515 dholland in base | |
| - New tests: dirconc, parallelvm. | |
| 20020515 dholland in base | |
| - Add missing V() in lhd driver. | |
| 20020515 dholland in base | |
| - Fixes for the thread code. | |
| 20020515 dholland in base | |
| - Tweak mips exception code for gdb's benefit. | |
| 20020515 dholland in base | |
| - Clean up dumbvm code. | |
| 20020515 dholland in base | |
| - Initialize mips stacks better, for gdb's benefit. | |
| 20020425 dholland in base | |
| - Fixes for testbin/f_test. | |
| 20020424 dholland in base, found by Richard Eisenberg. | |
| - Fix kmalloc bug. | |
| 20020424 dholland in base | |
| - Fix incorrect error codes in testbin/badcall. | |
| 20020424 dholland in base | |
| - Move stray assert in vfs code. | |
| 20020407 dholland in base | |
| - Fix off-by-one error in lhd driver. | |
| 20020325 dholland in base | |
| - Fix memory leak in malloctest. | |
| 20020318 dholland in base | |
| - Patch for race in thread_exit. (Fixed properly 5/15.) | |
| 20020305 dholland in base | |
| - Fix spl leak on thread_fork failure. | |
| 20020305 dholland in base | |
| - Fix for testbin/crash. | |
| OS/161 1.04 released 20020216 | |
| ----------------------------- | |
| 20020216 dholland in base | |
| - Fix warning in kmalloc debugging code. | |
| 20020216 dholland in base | |
| - Adjust testbin/badcall to assignment 2 requirements. | |
| 20020215 dholland in base | |
| - Add cpu_halt() to supplement cpu_idle(), to fix crash. | |
| 20020215 dholland in base | |
| - Fixes for matmult. | |
| 20020215 dholland in base | |
| - Fix garbled comment in vm.h. | |
| 20020215 dholland in base | |
| - Fix prototype of _exit(). | |
| 20020208 dholland in base | |
| - Fix stack frame of mips __start for gdb's benefit. | |
| 20020208 dholland in base | |
| - Fix queue bug. | |
| 20020208 dholland in base | |
| - Fix bug in testbin/{badcall,crash,faulter}. | |
| OS/161 1.03 released 20020131 | |
| ----------------------------- | |
| 20020131 dholland in base | |
| - Yield more on thread start (OPT_ASST1PROBS only). | |
| 20020131 dholland in base | |
| - Fix whalemating code to match assignment. | |
| 20020131 dholland in base | |
| - New synchronization problems for 2002. | |
| 20020131 dholland in base | |
| - Include fix in mips pcb.h. | |
| 20020130 fedorova in base | |
| - Adjust tt3 iteration counts/sizes. | |
| 20020129 georgi in base | |
| - Fix broken mksfs and dumpsfs build. | |
| 20020124 dholland in base | |
| - Put time() in libc; add __time() syscall. | |
| 20020124 dholland in base | |
| - Have hostcompat make stdout and stderr unbuffered. | |
| 20020124 dholland in base | |
| - Add sample optimizing config (ASST2-OPT). | |
| 20020124 dholland in base | |
| - New tests: dirseek, rmdirtest, triplemat. | |
| 20020123 dholland in base | |
| - Move matmult2 over original matmult. | |
| 20020123 dholland in base | |
| - Assert nobody's waiting when destroying a semaphore. | |
| 20020123 dholland in base | |
| - Add driver for new ltrace device. | |
| 20020123 dholland in base | |
| - Fix cosmetic bug in hardclock config. | |
| 20020121 dholland in base | |
| - Support ls over emufs. | |
| 20020121 dholland in base | |
| - Fix bug in copyinstr/copyoutstr code. | |
| 20020121 dholland in base | |
| - Fix broken Linux build of libhostcompat. | |
| 20020119 dholland in base | |
| - Alter dumbvm and loadelf for new toolchain. | |
| 20020117 dholland in base | |
| - Check for stack overflow during context switch. | |
| 20020117 dholland in base | |
| - Stop using -O2 with -g for mips. | |
| 20020117 dholland in base | |
| - More mips calling conventions fixes. | |
| 20020117 dholland in base | |
| - Correct the inline asm in spl.c. | |
| 20020117 dholland in base | |
| - Remove machine/inlineasm.h; fold into spl.c. | |
| 20020117 dholland in base | |
| - Avoid using default make-supplied CFLAGS. | |
| 20020117 dholland in base | |
| - Fix use of libhostcompat in mksfs and dumpsfs. | |
| 20020117 dholland in base | |
| - Fix cosmetic bug in configure script. | |
| 20020116 dholland in base | |
| - Adjust various things for new toolchain. | |
| 20020110 dholland in base | |
| - Install hostcompat includes properly. | |
| 20020110 dholland in base | |
| - Various fixes for new gcc (3.0.3) and binutils. | |
| 20020104 dholland in base | |
| - More man pages. | |
| 20020103 dholland in base | |
| - Remove excess register saves from mips context switch. | |
| 20020103 dholland in base | |
| - Move old getcwd to __getcwd; put POSIX getcwd in libc. | |
| 20020103 dholland in base | |
| - Tinker with tt3 test. | |
| 20020102 dholland in base | |
| - Change thread_fork so it can return errors. | |
| 20020102 dholland in base | |
| - Preallocate various things to avoid dying in mi_switch. | |
| 20010925 dholland in base | |
| - Add a bunch of consistency checks to sfs. | |
| 20010925 dholland in base | |
| - Fix bug in new panic code. | |
| 20010925 dholland in base | |
| - Add menu command to panic intentionally. | |
| 20010925 dholland in base | |
| - Fix bug in emufs. | |
| 20010925 dholland in base | |
| - memcpy by words instead of bytes when properly aligned. | |
| 20010925 dholland in base | |
| - Use setjmp() and longjmp() for aborting copyin/copyout. | |
| 20010925 dholland in base | |
| - Add code for setjmp() and longjmp(). | |
| 20010921 dholland in base | |
| - Add VOP_KILL (undoes VOP_INIT, which can now fail too.) | |
| 20010921 dholland in base | |
| - Fix race conditions in vnode reclaim. | |
| 20010921 dholland in base | |
| - Fix VFS behavior for things like "rmdir foo:". | |
| OS/161 1.02 released 20010921 | |
| ----------------------------- | |
| 20010921 dholland in base | |
| - Revise device config/attach code. | |
| 20010920 dholland in base | |
| - Standards compliance fixes for strchr/strrchr. | |
| 20010920 dholland in base | |
| - Fix bug in system(). | |
| 20010919 dholland in base | |
| - More man pages. | |
| 20010918 dholland in base | |
| - Changed MAXNAMLEN to NAME_MAX. | |
| 20010918 dholland in base | |
| - Fix bug in kernel menu pwd command. | |
| 20010918 dholland in base | |
| - Panic handling improvements. | |
| 20010918 dholland in base | |
| - Kernel bootup and shutdown cleanup. | |
| 20010918 dholland in base | |
| - Fixes for testbin/badcall. | |
| 20010824 dholland in base | |
| - Make config script probe for <err.h>. | |
| 20010821 dholland in base | |
| - Changes to queue code for consistent naming. | |
| 20010808 dholland in base | |
| - Add man pages. | |
| 20010808 dholland in sol2 | |
| - The shell can now use <err.h> again, so do so. | |
| 20010808 dholland in base | |
| - Add explicit support for host-runnable programs. | |
| 20010807 dholland in base | |
| - Clean up -nostdinc/-nostdlib handling. | |
| 20010807 dholland in base | |
| - Fix bug in cp. | |
| 20010807 dholland in base | |
| - New test in testbin/crash. | |
| 20010807 dholland in base | |
| - Fixes for testbin/malloctest. | |
| 20010806 dholland in base | |
| - Fix glitch in testbin/badcall. | |
| 20010806 dholland in base | |
| - New test: randcall. | |
| 20010804 dholland in base | |
| - Add missing strrchr proto to <string.h>. | |
| 20010803 dholland in base | |
| - Clean up ls; among other things, fix ls -R. | |
| 20010803 dholland in base | |
| - Fixes for testbin/badcall. | |
| 20010803 dholland in base | |
| - Add memset() to libc. | |
| 20010803 dholland in base | |
| - Split part of testbin/crash to new testbin/badcall. | |
| 20010802 dholland in base | |
| - Add comments to testbin describing intended uses. | |
| 20010802 dholland in base | |
| - Fix testbin/ctest to be large enough to be interesting. | |
| 20010802 dholland in base | |
| - Fix testbin/sort to be quicksort instead of bubblesort. | |
| 20010802 dholland in base | |
| - Various minor testbin fixes/cleanup. | |
| 20010802 dholland in base | |
| - Add dummy <sys/wait.h> to make porting easier. | |
| - Add dummy <sys/reboot.h> to make porting easier. | |
| - Add dummy <sys/ioctl.h> to make porting easier. | |
| - Add dummy <time.h> to make porting easier. | |
| - Add dummy <fcntl.h> to make porting easier. | |
| 20010802 dholland in base | |
| - Have kfree deadbeef out free blocks. | |
| 20010801 dholland in base | |
| - Time execution of every kernel menu command. | |
| 20010801 dholland in base | |
| - Add getinterval() function for subtracting times. | |
| 20010801 dholland in base | |
| - Print commands as they execute from the command string. | |
| 20010801 dholland in base | |
| - New test tt3; add atoi from libc to kernel build. | |
| 20010801 dholland in base | |
| - Add memcpy from libc. | |
| 20010801 dholland in base | |
| - Fix size_t and add memcpy() to libc. | |
| 20010801 dholland in base | |
| - Reset mips TLB at boot time. | |
| 20010801 dholland in base | |
| - Revise kernel menu layout. | |
| 20010801 dholland in base | |
| - Add tests for arrays, bitmaps, queues, and semaphores. | |
| 20010801 dholland in base | |
| - Add "reconfig" rule to kernel makefiles. | |
| 20010801 dholland in base | |
| - Fix queue code. | |
| 20010731 dholland in base | |
| - Move main.c from kern/thread to kern/main. | |
| 20010730 dholland in base | |
| - Add kernel menu command to unmount things. | |
| 20010730 dholland in base | |
| - Add vfs_unmountall() for shutdown time. | |
| 20010730 dholland in base | |
| - Report mounts to the console as they happen. | |
| 20010730 dholland in base | |
| - Abolish pointless kernel shutdown functions. | |
| 20010726 dholland in base | |
| - Add config support for pseudo-devices. | |
| - Add pseudorand device for when hardware is missing. | |
| - Add random: device accessible through VFS. | |
| 20010724 dholland in base | |
| - Yield randomly at thread start if OPT_ASST1PROBS set. | |
| 20010724 dholland in base | |
| - Clarify comments in mips exception.S. | |
| 20010724 dholland in base | |
| - Don't allow calling P() from an interrupt handler. | |
| 20010724 dholland in base | |
| - Fixes for lser driver. | |
| 20010723 dholland in base | |
| - More mips calling conventions fixes. | |
| 20010626 dholland in base | |
| - Massive changes to kernel menu UI. | |
| - Add pwd and sync to kernel menu. | |
| 20010619 dholland in base | |
| - Change as_copy so it can return error codes. | |
| 20010619 dholland in base | |
| - Merge bitmap_isset() from sol3. | |
| 20010619 dholland in base | |
| - Various fixes for new dumbvm. | |
| 20010619 dholland in base | |
| - Fix overly enthusiastic test in vnode_check(). | |
| 20010619 dholland in base | |
| - Provide a sketch of the skeleton for doing fork. | |
| 20010618 dholland in base | |
| - Add asserts to synch code. | |
| 20010618 dholland in base | |
| - Clean up/clarify syscall entry code. | |
| 20010618 dholland in base | |
| - New dumbvm supporting multiple address spaces. | |
| 20010618 dholland in base | |
| - Remove mips dependencies from loadelf.c. | |
| 20010618 dholland in base | |
| - Add hacks to prevent looping "Unknown syscall -1". | |
| 20010615 dholland in base | |
| - Merge the kmalloc and kfree from sol3. | |
| 20010614 dholland in base | |
| - Move kernel menu stuff to its own file. | |
| 20010614 dholland in base | |
| - Fixes for sfs and vfs layer. | |
| 20010612 dholland in base | |
| - Add sfs_rwblock to encapsulate sfs_device->d_io(). | |
| 20010612 dholland in base | |
| - Add lbolt and clocksleep() functionality to kernel. | |
| 20010612 dholland in base | |
| - Add -W to standard warning options. | |
| 20010611 dholland in base | |
| - Abolish rcsids. | |
| 20010611 dholland in base | |
| - Fix memory leak on error in thread_fork. | |
| 20010611 dholland in base | |
| - Don't panic if kmalloc fails. Add checks. | |
| 20010611 dholland in base | |
| - Add VOP_MAGIC to vnode ops tables, and lots of checks. | |
| 20010611 dholland in base | |
| - Add array_setguy(). | |
| 20010608 dholland in base | |
| - Add random() and srandom() to libc. | |
| 20010608 dholland in base | |
| - Add some framework for user-level malloc to libc. | |
| 20010608 dholland in base | |
| - Correct prototypes for read() and write(). | |
| 20010608 dholland in base | |
| - kprintf synchronization cleanups. | |
| 20010523 dholland in sol2 | |
| - Allow DEL as well as BS for backspacing in shell. | |
| 20010523 dholland in base | |
| - Add warning about the consequences of touching paddr 0. | |
| 20010523 dholland in base | |
| - Fix open count handling on VOP_CLOSE error. | |
| 20010523 dholland in base | |
| - New test: malloctest. | |
| 20010428 dholland in base | |
| - Handle multiple leading slashes on pathnames. | |
| 20010423 dholland in base | |
| - Fix deadlock in vfs layer. | |
| 20010423 dholland in base | |
| - Fix bug in testbin/dirtest. | |
| 20010423 dholland in base | |
| - Fix multiple bugs in ls. | |
| 20010422 dholland in base | |
| - Fix another bug in sfs. | |
| 20010419 dholland in base, from Amos Blackman. | |
| - Fix bug in sfs. | |
| 20010416 dholland in base | |
| - Fix fstest code. | |
| 20010416 dholland in base | |
| - Remove stray debug output from dumpsfs. | |
| 20010414 dholland in base | |
| - Makefile fix: build mksfs and dumpsfs by default. | |
| - Fix host mksfs/dumpsfs build on DU. | |
| 20010414 dholland in base, found by Dafina Toncheva. | |
| - Fix bug in sfs. | |
| 20010414 dholland in base | |
| - Fix endianness bug in dumpsfs. | |
| 20010414 dholland in base | |
| - Do a sync at shutdown time. | |
| 20010414 dholland in base | |
| - Format depend.mk files consistently. | |
| 20010414 dholland in base | |
| - Fix memory leak in sfs. | |
| 20010413 dholland in base | |
| - Allow VOP_FSYNC on sfs directories. | |
| 20010412 dholland in base | |
| - Detect infinite loop triggerable by uio misuse. | |
| 20010411 dholland in base | |
| - Fix bug in bitmap code. | |
| 20010406 dholland in base | |
| - Fix calling conventions in mips asm code. | |
| 20010323 dholland in base, found by Jeff DeSoto. | |
| - Fix multi-sector lhd I/Os. | |
| 20010322 dholland in base, found by Jeffrey Enos. | |
| - Fix bug in comment in pcb.c. | |
| 20010319 dholland in base | |
| - Make matmult smaller. | |
| 20010318 moorthi in base | |
| - Fix bug in array code. | |
| 20010314 dholland in base, found by Edward Lim. | |
| - Fix bug in mv. | |
| 20010314 dholland in base, found by Mike Vernal. | |
| - Fix bug in testbin/crash. | |
| 20010314 dholland in base | |
| - Fix bug in bitmap code. | |
| 20010308 moorthi in base | |
| - Fix bug in sfs. | |
| OS/161 1.01 released 20010226 | |
| ----------------------------- | |
| 20010226 dholland in sol2 | |
| - Shell fixes. | |
| 20010226 dholland in base | |
| - Add a lock to the console device. | |
| 20010226 dholland in base | |
| - Fix another bug in copyin/copyout code. | |
| 20010226 dholland in base | |
| - Use device name for FSes that don't return a volname. | |
| - Add vfs_getdevname(). | |
| 20010226 dholland in base | |
| - Make /bin/pwd work in emufs. | |
| - Fix two bugs in pwd. | |
| 20010225 dholland in base | |
| - Fix bug in mips copyin/copyout code. | |
| - Fix bug in mips trap code. | |
| 20010224 dholland in base | |
| - Add appropriate volatile keywords in various places. | |
| 20010224 dholland in base | |
| - Fix synchronization in placeholder kmalloc. | |
| 20010221 dholland in base | |
| - Fix bug in CV code. | |
| OS/161 1.00 released 20010208 | |
| ----------------------------- | |
| 20010208 dholland in base | |
| - Add EBADF to error list. | |
| 20010208 dholland in base | |
| - Fix specification of VOP_STAT. | |
| 20010208 blackman in base | |
| - Fix naming of queue functions. | |
| 20010208 blackman in base | |
| - Driver for lrandom device. | |
| 20010207 dholland in base | |
| - Check all calls to thread_fork for failure. | |
| 20010206 dholland in base | |
| - Fix comment in mips/specialreg.h. | |
| 20010205 dholland in base | |
| - Prevent recursive scheduler calls. (Fixes crash.) | |
| 20010205 dholland in base | |
| - Make syscall wrapper generation more robust. | |
| 20010205 dholland in base | |
| - Fix bug in cp. | |
| OS/161 0.99 released 20010202 | |
| ----------------------------- | |
| 20010202 dholland in base | |
| - Add host-sh (host-runnable version) to sh makefile. | |
| 20010202 dholland in base | |
| - Add licensing boilerplate. | |
| 20010201 dholland in base | |
| - Switch from getfilesize() to fstat(). | |
| 20010201 dholland in base | |
| - Add system(). | |
| 20010130 dholland in base | |
| - Add strtok() and strtok_r(). | |
| 20010129 dholland in base | |
| - Add ELF code. | |
| 20010111 dholland in base | |
| - Fix bug in ls. | |
| 20010103 dholland in base | |
| - Initial checkin of development tree. |