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Author SHA1 Message Date
Josh Poimboeuf
a3efb7e1aa Merge pull request #177 from spartacus06/linked-list 
convert core data structures from arrays to linked-lists
 2014-05-12 09:23:36 -05:00
Seth Jennings
a78bb8bcb3 cleanup logic in rela comparison 
Per review comments.

Signed-off-by: Seth Jennings <sjenning@redhat.com>
 2014-05-12 08:48:33 -05:00
Seth Jennings
207c237e48 fixup review comments 
Signed-off-by: Seth Jennings <sjenning@redhat.com>
 2014-05-09 23:42:11 -05:00
Seth Jennings
c34f4c23e0 Merge pull request #179 from jpoimboe/modprobe-core-module 
kpatch: try to modprobe core module
 2014-05-09 23:24:42 -05:00
Josh Poimboeuf
ac8a54e535 kpatch: try to modprobe core module 
Try to modprobe the core module, for systems that have the core module
properly installed with depmod.
 2014-05-09 20:24:26 -05:00
Seth Jennings
20c7882d93 remove temporary debug message 
Signed-off-by: Seth Jennings <sjenning@redhat.com>
 2014-05-07 11:18:54 -05:00
Seth Jennings
08dbc37c75 add null symbol to inventory files 
Add the null symbol to in inventory files.  Before the linked-link
change, the null symbol wasn't included in the inventory.  However,
it is required to be a valid ELF file and should be inventoried and
check for in the test.

Signed-off-by: Seth Jennings <sjenning@redhat.com>
 2014-05-07 10:16:39 -05:00
Seth Jennings
5d36dd1c32 convert from arrays to linked-lists 
Signed-off-by: Seth Jennings <sjenning@redhat.com>
 2014-05-07 10:06:41 -05:00
Josh Poimboeuf
a7dc43ab24 Merge pull request #176 from ryanmiao/for-pr-141 
Fix kpatch.ko build on Ubuntu Saucy.
 2014-05-07 09:54:57 -05:00
Jincheng Miao
171cd567ce Fix kpatch.ko build on Ubuntu Saucy. 
The error likes:
make -C /lib/modules/3.11.0-12-generic/build M=/home/ryan/kpatch/kmod/core kpatch.ko
make[3]: Entering directory `/usr/src/linux-headers-3.11.0-12-generic'
  CC [M]  /home/ryan/kpatch/kmod/core/core.o
/home/ryan/kpatch/kmod/core/core.c:42:32: fatal error: linux/preempt_mask.h: No such file or directory
 #include <linux/preempt_mask.h>

I feel sorry to introduce this problem from my laster commit 6c2d6444.
Some old kernel doesn't have header file preempt_mask.h, and the safe
way is using hardirq.h to find in_nmi().

Signed-off-by: Jincheng Miao <jincheng.miao@gmail.com>
 2014-05-07 17:48:02 +08:00
Seth Jennings
135b438af0 Merge pull request #175 from jpoimboe/kpatch-list 
kpatch: show loaded modules in list command
 2014-05-06 14:02:55 -05:00
Josh Poimboeuf
49f832c2b9 kpatch: change "patches" to "patch modules" in list 2014-05-06 12:53:45 -05:00
Josh Poimboeuf
10004a9e6e kpatch: list loaded modules 2014-05-06 12:52:00 -05:00
Seth Jennings
74fb803eac Merge pull request #173 from madper/dracut-fix 
Add dirname to initramfs
 2014-05-06 08:51:25 -05:00
Madper Xie
b74395c537 Add dirname to initramfs 
kpatch script need dirname to git SCRIPTDIR. But dracut won't copy it to
initramfs by default.

Signed-off-by: Madper Xie <cxie@redhat.com>
 2014-05-06 17:43:49 +08:00
Josh Poimboeuf
c41319e1a5 Merge pull request #172 from jpoimboe/integration-tests 
add more integration tests
 2014-05-05 20:05:03 -05:00
Josh Poimboeuf
b541692061 test: add test for loading multiple modules 2014-05-05 20:03:57 -05:00
Josh Poimboeuf
1fced0bc3d test: fix unload_all 2014-05-05 20:03:57 -05:00
Josh Poimboeuf
df2e2daa92 test: send status messages to log file 2014-05-05 20:03:54 -05:00
Josh Poimboeuf
100f358b1d test: fix custom test error condition check 2014-05-05 17:05:49 -05:00
Josh Poimboeuf
bcbc9d3109 test: make .init sections can't be changed 2014-05-05 17:05:49 -05:00
Josh Poimboeuf
7c60dcf2a3 test: make output messages easier to read 2014-05-05 17:05:49 -05:00
Josh Poimboeuf
46786dad93 test: add custom test for kpatch replace 2014-05-05 17:05:44 -05:00
Josh Poimboeuf
757120d8a0 test: add meminfo-cmdline test 2014-05-05 16:05:00 -05:00
Josh Poimboeuf
a0c9aff4cc test: fix uninitialized skip variable 2014-05-05 16:05:00 -05:00
Josh Poimboeuf
3ae6bc46ff test: add cmdline-string test 2014-05-05 16:05:00 -05:00
Josh Poimboeuf
d3aee7c734 test: test 'kpatch reload' and cleanup between tests 2014-05-05 16:04:58 -05:00
Seth Jennings
3866aeab03 Merge pull request #171 from jpoimboe/style 
kmod/core: minor style fix
 2014-05-05 14:01:00 -05:00
Josh Poimboeuf
ab112cce2d kmod/core: minor style fix 
For compatibility with checkpatch
 2014-05-05 13:40:42 -05:00
Seth Jennings
66cab1d4a2 Merge pull request #170 from jpoimboe/module-special-chars 
kpatch-build: replace special characters in module name
 2014-05-05 11:10:47 -05:00
Josh Poimboeuf
5e4ac36253 kpatch-build: replace special characters in module name 
Having a '.' in the kmod name confuses lsmod, which prints "Size" and
"Used by" values of -2.  Prevent any special characters other than '_'
and '-', so that our patch module names will be consistent with typical
kmod names.
 2014-05-05 11:07:35 -05:00
Seth Jennings
2adb1d6837 Merge pull request #168 from jpoimboe/readme-patch-example 
readme: give a more concrete patch example
 2014-05-05 09:01:52 -05:00
Seth Jennings
6ecc8ce254 Merge pull request #169 from jpoimboe/unregister-fix 
kmod/core: fixes in the unregister path
 2014-05-05 09:01:41 -05:00
Josh Poimboeuf
6ee8803978 kmod/core: kpatch_unregister return error if !kpmod->enabled 
It's probably cleaner to just return -EINVAL if the kpmod isn't enabled,
instead of warning and continuing, which would be dangerous.

I think the reason I had it WARN before is because this condition
shouldn't be possible given the source for the patch module.  But the
core module can't necessarily assume that it's our trustworthy patch
module code on the other side.
 2014-05-02 23:02:29 -05:00
Josh Poimboeuf
4bde6c3bbf kmod/core: fix kpatch_num_registered decrement 
Oops, kpatch_unregister doesn't decrement kpatch_num_registered whenever
it's > 1.
 2014-05-02 22:55:32 -05:00
Josh Poimboeuf
9f69d1fe61 readme: give a more concrete patch example 
I think a more concrete example makes it a little easier to grok.
 2014-05-02 22:53:04 -05:00
Seth Jennings
8bce2712c7 Merge pull request #166 from jpoimboe/ftrace-check 
kmod/core: check for needed kernel config options
 2014-05-02 16:30:14 -05:00
Josh Poimboeuf
de40ff3e54 kmod/core: check for needed kernel config options 
Yes, this is ugly.  There's a much cleaner way to do this for an in-tree
module, but this is the only way I know how to do it here.
 2014-05-02 16:11:55 -05:00
Seth Jennings
bf45d8dc5e Merge pull request #160 from jpoimboe/kpatch-load-replace 
support for "kpatch replace"
 2014-05-02 15:49:54 -05:00
Josh Poimboeuf
65810a47d0 kpatch replace 
Allow the user to atomically replace all existing modules with a new
"kpatch replace" command.  This provides a safe way to do atomic
upgrades for cumulative patch module updates.
 2014-05-02 15:35:00 -05:00
Josh Poimboeuf
354b399be5 kpatch: reformat usage message 
In prepraration for "kpatch load --replace", reformat the usage message
to give more room for the command descriptions.  Also move the
formatting logic to its own function.
 2014-05-02 15:15:25 -05:00
Josh Poimboeuf
b7f32f8ade gitignore *.o.d 
When the core module compilation fails, a kmod/core/.core.o.d file
appears.
 2014-05-02 15:15:25 -05:00
Seth Jennings
59cbfe63b8 Merge pull request #164 from useidel/master 
correct build requirements for Fedora 20; yum-utils was missing
 2014-05-02 09:41:32 -05:00
Udo Seidel
6ea2a2ffcb correct build requirements for Fedora 20; yum-utils was missing 2014-05-02 12:18:36 +02:00
Seth Jennings
1717e17290 Merge pull request #162 from jpoimboe/lkml 
a few style fixes
 2014-05-01 16:14:01 -05:00
Josh Poimboeuf
411fd570f2 kmod/core: update a few comments 
- update the file description comment to be a little more accurate and
  concise
- s/trampoline/ftrace handler/
 2014-05-01 12:36:28 -05:00
Josh Poimboeuf
b5de5a8b25 kmod/core: checkpatch and sparse fixes 
- checkpatch doesn't like the FSF address since it's subject to change
- checkpatch doesn't like strings split by line
- whitespace fix
- sparse suggested to change some variables and functions to static
 2014-05-01 12:31:33 -05:00
Josh Poimboeuf
d76ba0b9a7 readme: taint clarifications 2014-05-01 12:15:58 -05:00
Josh Poimboeuf
c85467db04 readme: kpatch is an infrastructure, not a tool 2014-05-01 12:15:30 -05:00
Seth Jennings
c3f5766a69 Merge pull request #159 from jpoimboe/nmi-redesign 
kmod/core: NMI synchronization improvements
 2014-04-30 14:37:12 -05:00