Commit graph

1298 commits

Author SHA1 Message Date
Robert Morris 020c8e2384 use acquire/release to force order for pid=np->pid;np->state=RUNNING
for bug reported by symingz@gmail.com and cs1100254@cse.iitd.ernet.in
2014-08-04 06:13:49 -04:00
Frans Kaashoek 86188d9d49 newer versions of qemu have different binary names (per Joel Nider <joel@nider.org>) 2014-07-31 11:15:15 -04:00
Stephen Tu ff2783442e Correct a security bug in copyuvm()
copyuvm() should not allow new copied pages to inherit more
permissions than the original pages.
2013-03-04 16:16:54 -05:00
Cam Tenny 241c068066 Prevent extra rebuild of fs.img by keeping intermediate object files. 2012-10-24 18:52:40 -04:00
Frans Kaashoek c440b5cd97 Use static assert instead of _LP64 (thanks Eddie!) 2012-09-10 21:58:18 -04:00
Frans Kaashoek cf57e525c1 Remove -m32 flag from native gcc compiler
But check that mkfs.c is building with LP64
2012-09-07 17:39:04 -04:00
Robert Morris 2ae8392a5c make the book happy 2012-08-28 14:41:08 -04:00
Robert Morris 792d83cad1 nits 2012-08-28 14:11:23 -04:00
Robert Morris c1ee7eb4d3 Merge branch 'master' of git+ssh://amsterdam.csail.mit.edu/home/am0/6.828/xv6 2012-08-28 12:57:13 -04:00
Robert Morris 8960f60b30 junk 2012-08-28 12:57:05 -04:00
Austin Clements 951b77f7ec Various fixes and improvements to printpcs
Search for an addr2line that supports elf32-i386.  Don't print the
path of addr2line as a side-effect of which.  Don't uselessly pipe
"grep '^ '" to addr2line's stdin.  Enable as many pretty-printing and
otherwise helpful options as possible (this makes the output *much*
more pleasant on modern addr2lines).
2012-08-24 14:51:52 -04:00
Frans Kaashoek 020acb4f10 For the convenience of students 2012-08-23 09:35:00 -04:00
Frans Kaashoek 6650cc934a Use addr2line (or i386-jos-elf-addr2line, if you cross compile) 2012-08-22 21:25:19 -04:00
Frans Kaashoek 3fb7eceea7 Runoff still complaints these lines are too long, but it is now ok on printout 2012-08-22 21:24:13 -04:00
Frans Kaashoek f3f4b0fd88 chmod +x 2012-08-22 20:54:47 -04:00
Frans Kaashoek c2d393df13 Decode getcallerpcs() (thanks to Peter Froehlich) 2012-08-22 20:51:29 -04:00
Frans Kaashoek 95692c4a8c Remove left-over from some logging plan making complete syscalls atomic
0 is not a system call (thanks to Peter Froehlich)
2012-08-22 20:28:58 -04:00
Frans Kaashoek 432acbaf9e Merge branch 'master' of git+ssh://amsterdam.csail.mit.edu/home/am0/6.828/xv6 2012-08-22 20:20:17 -04:00
Frans Kaashoek 4ce832ddd2 Remove unused argument to setupkvm (thanks to Peter Froehlich) 2012-08-22 20:19:37 -04:00
Frans Kaashoek 70c555574a Remove unused argument from lapicinit (thanks to Peter Froehlich) 2012-08-22 20:13:43 -04:00
Frans Kaashoek b08d16f61d Fix from Peter Froehlich 2012-08-22 20:07:04 -04:00
Austin Clements 9d59eb0151 Make fetchint and fetchstr use proc instead of taking a struct proc
Previously, these were inconsistent: they used their struct proc
argument for bounds checking, but always copied the argument from the
current address space (and hence the current process).  Drop the
struct proc argument and always use the current proc.

Suggested by Carmi Merimovich.
2012-02-17 23:20:13 -05:00
Robert Morris 12abb1a561 don't let dirty blocks be evicted from cache! 2011-10-14 10:23:23 -04:00
Robert Morris 38eee5bca7 more FS comment clarification 2011-10-11 10:11:53 -04:00
Robert Morris a5fbfe418a clarify some FS comments 2011-10-11 06:41:37 -04:00
Austin Clements d73dd097a5 Fix compile error on newer gcc's 2011-09-30 15:28:33 -04:00
Frans Kaashoek 0ca1c0407d Merge branch 'master' of git+ssh://amsterdam.csail.mit.edu/home/am0/6.828/xv6 2011-09-27 13:00:20 -04:00
Frans Kaashoek 9b972c06b1 Update stressfs to trigger race now the logging code serializes writes 2011-09-27 12:59:47 -04:00
Austin Clements 1e6f0146d2 Use | instead of + for entrypgdir. Linker doesn't get in our way here. 2011-09-14 13:47:04 -04:00
Robert Morris c092540e39 eliminate enter_alloc -- use kalloc for everything 2011-09-13 13:14:52 -04:00
Robert Morris 7e7cb106d0 more regular kmap[] and description 2011-09-13 12:28:45 -04:00
Robert Morris 90a81b3228 comment nits 2011-09-12 14:27:14 -04:00
Austin Clements 9b59dc44dc Remove unused 'state' variable that broke the build in recent gcc's 2011-09-07 16:39:27 -04:00
Austin Clements e64c661ae8 Rev 6 2011-09-07 12:42:09 -04:00
Austin Clements 8bfcffeae1 Remove nice font from master 2011-09-07 12:40:02 -04:00
Austin Clements 5c87802de2 Fetch nice font from font branch, if possible 2011-09-07 12:38:24 -04:00
Austin Clements 5304c854a4 Move xv6 release tars/pdfs in to 6.828 repo 2011-09-07 11:57:41 -04:00
Austin Clements 01a6c054d5 Remove web directory; all cruft or moved to 6.828 repo 2011-09-07 11:49:14 -04:00
Austin Clements 64a03bd7aa Make web page refer to git releases 2011-09-07 11:36:53 -04:00
Austin Clements b81aadf093 Remove old book chapters 2011-09-07 10:05:52 -04:00
Austin Clements 09b1909163 Re-alphabetize OBJS 2011-09-05 23:45:04 -04:00
Austin Clements 03f48901f0 Note about the meaning of sheet1 in runoff.spec 2011-09-05 21:52:50 -04:00
Frans Kaashoek 861cc158be sources -> sources and text 2011-09-05 20:56:48 -04:00
Frans Kaashoek 5f46b272fe Shorten history of xv6
Cut section about commentary
Add (failing) link to xv6 source section pointing to the text.
Delete the incorrect/incomplete list of universities using jos/xv6
2011-09-05 20:54:25 -04:00
Austin Clements 79bc8be8de Setting indent-tabs-mode nil everywhere is dangerous 2011-09-05 15:22:16 -04:00
Austin Clements b1c66ca899 Sync up clean and gitignore better 2011-09-05 15:21:40 -04:00
Austin Clements 87904b01a3 Update gitignore 2011-09-05 12:54:42 -04:00
Austin Clements 310edc99fe Fix stale comments in entryother.S 2011-09-04 15:56:16 -04:00
Austin Clements 2fc6c35b2f Make the ELF entry point a physical address
This way, the bootloader doesn't have to translate the entry point.
This also makes xv6 multiboot-compliant and follows the convention
used by Linux.
2011-09-04 15:51:46 -04:00
Austin Clements 68b5872716 kernel depends on kernel.ld 2011-09-04 15:19:43 -04:00