Török Edvin
f121d43df8
Workaround LLVM JIT PowerPC relocation bug (bb #1921 ).
...
Based on Gary Benson's workaround for OpenJDK Shark / IcedTea.
2010-04-02 13:13:23 +03:00
Török Edvin
556eaf0442
Update ClamBCRTChecks.cpp from bytecode compiler:
...
Check bounds of each pointer passed to/from APIcalls,
forbid recursion.
2010-03-30 23:23:41 +03:00
Török Edvin
b2de4fd85f
Minor optimization in JIT loader.
2010-03-30 11:07:05 +03:00
Török Edvin
cbec3f2446
Update SELinux message.
2010-03-30 00:34:49 +03:00
Török Edvin
44e134312c
More fixes for pdf.cbc.
2010-03-30 00:04:38 +03:00
Török Edvin
c506c2c555
Fallback to interpreter mode when SELinux denies 'execmem' access. (bb #1901 ).
...
This also fixes a crash when run under SELinux: MemoryBlock() needs to
initialize its field to 0!
2010-03-28 13:52:29 +03:00
Török Edvin
11cee1b7de
Disable JITDebugRegisterer, and fix unit_tests rule.
2010-03-24 17:22:34 +02:00
Török Edvin
6ea339aeab
Fix bswap.
2010-03-24 15:27:15 +02:00
Török Edvin
bdd9aeaeeb
Use a watchdog thread. Also make timeout be ms instead of us.
2010-03-23 16:33:41 +02:00
Török Edvin
99536a178c
Insert timeout checks directly into the JITed code.
...
pthread_cancel is broken on Mac OS X (it only works if the thread
you want to kill calls pthread_testcancel, which is never the situation
when you need async cancelation).
Anyway async cancelation is risky, it may leave bc_ctx in an inconsistent state.
So rather than doing using pthread_cancel (or pthread_kill+siglongjmp)
just insert the timeout checks into the JITed code directly.
These are inserted in each loop, if the loop's tripcount is unknown, or
higher than a threshold. They are also inserted after a certain amount
of APIcalls are made (even in absence of loops).
Note that 'loop' in this sense is not LLVM's notion of a natural loop,
it is simply a BB which is reachable both directly and via a backedge.
For example this doesn't contain natural loops but contains backedges (and a
potential infinite loop):
int foo(int a)
{
int x=4;
if (a == 42)
goto head2;
head:
x++;
head2:
if (a >= 2) {
x += 3;
goto head;
} else if (a >= 0) {
x += 9;
goto head;
}
return x;
}
2010-03-23 15:54:41 +02:00
Török Edvin
b63681a52b
Introduce BytecodeTimeout.
2010-03-22 17:16:07 +02:00
Török Edvin
884a0b8f8d
Support for timeouts.
2010-03-22 16:57:27 +02:00
Török Edvin
84edf09bba
Fix clambc -p.
2010-03-22 14:58:51 +02:00
Török Edvin
e2752b2cc8
Fix valgrind warning.
2010-03-22 13:05:20 +02:00
Török Edvin
52d0d8bc7e
More fixes for global vars in the interpreter.
2010-03-22 11:18:28 +02:00
Török Edvin
09667cdd3b
Print size and location of JITed code.
2010-03-22 11:18:28 +02:00
Török Edvin
6ad39a4099
zlib/buffer apis.
2010-03-22 11:18:28 +02:00
Török Edvin
75e18b29c2
minimalistic zlib api.
2010-03-22 11:18:28 +02:00
Török Edvin
b56bea54d3
New API for buffer fill.
2010-03-22 11:18:28 +02:00
Török Edvin
aa745db74d
Add clamscan commandline to load bytecode in debug mode.
2010-03-12 13:13:08 +02:00
Török Edvin
f60c59a471
bb #1800 .
2010-03-10 11:44:55 +02:00
Török Edvin
04d11afedb
Update to new LLVM API.
...
ModuleProvider is gone!
2010-02-15 18:48:35 +02:00
Török Edvin
6eeadbfeda
dconf for bytecode.
2010-02-15 17:32:41 +02:00
Török Edvin
1e30496d2a
runtime checks verifier.
2010-02-15 17:32:41 +02:00
Török Edvin
236fb13647
New pointer handling rules.
2010-02-15 17:32:40 +02:00
Török Edvin
847d7fc1b8
2009->2010
2010-02-02 14:03:32 +02:00
Török Edvin
57bbb2eb14
Fix loading of multiple .cbc files.
...
Common function prototypes must be added only once per Module, otherwise LLVM autorenames
them, and we get llvm.bswap.i326 instead of llvm.bswap.i32, which is of course
not valid and the verifier rejects.
2010-02-02 14:01:38 +02:00
Török Edvin
bcb354a654
_GLIBCXX_PARALLEL is not supported: it creates threads before we fork() causing
...
deadlock.
2010-01-27 14:42:40 +02:00
Török Edvin
a7b7a64833
fix compiler warning.
2010-01-26 14:25:54 +02:00
Török Edvin
ee6ab4f8d3
Support building w/o atomic builtins for i386 (bb #1781 ).
...
Wrap all LLVM API calls with a single mutex when LLVM doesn't have multithreaded
mode.
Also fallback to interpreter mode on i386 and i486.
2010-01-26 12:44:49 +02:00
Török Edvin
be43f951c6
BytecodeSecurity setting.
2010-01-22 16:50:35 +02:00
Török Edvin
4395bb9acf
bytecode ptrdiff32 opcode.
2010-01-21 16:49:22 +02:00
Török Edvin
2d45ef0616
Support for malloc in bytecode. Fix crash with mismatched api/flevel versions.
2010-01-20 20:04:01 +02:00
Török Edvin
8997b14725
bswap.
2009-12-30 15:08:35 +02:00
Török Edvin
b3571ea9ae
Fix __*di3 libcalls on x86-32.
...
On 32-bit targets LLVM emits libcalls for 64-bit operations.
Make sure these libcalls actually map to our own functions, and not to 0.
Also reject any other libcall we don't know about instead of mapping to 0 and crashing.
2009-12-30 12:15:26 +02:00
Török Edvin
c52e92748e
Fix some warnings from clang++ bytecode2llvm.cpp.
2009-12-28 20:18:59 +02:00
Török Edvin
8d18898743
add regalloc local for debug purposes.
2009-12-18 15:04:23 +02:00
Török Edvin
9463f9fd90
Stack protector support.
2009-12-18 14:17:50 +02:00
Török Edvin
688799d126
yc_bytecode is able to unpack a file now!
2009-12-17 17:40:35 +02:00
Török Edvin
3cd48316a3
Fix some compiler warnings.
2009-12-17 10:59:26 +02:00
Török Edvin
5b91dc3455
new deplibs.
2009-12-15 18:15:28 +02:00
Török Edvin
303c6ea016
Minimum required version for multithreaded LLVM is gcc 4.1.3.
...
gcc 3.4.6 doesn't support atomic builtins required by LLVM for multithreaded
mode.
So make the minimum version 4.1.3, since: 4.0 is buggy for ClamAV itself, and
4.1.1, 4.1.2 are buggy when compiling LLVM.
On gcc 3.4.6 clamav will use the interpreter now.
2009-12-14 16:23:22 +02:00
Török Edvin
853b6e5da1
Add LLVM win32 proj files generated by cmake.
...
Fix win32 build issues.
Enable CPU detection on win32 too.
Enable LLVM JIT on win32 too.
Define NDEBUG for libclamavc++ for release win32 builds.
2009-12-12 15:14:39 +02:00
Török Edvin
d0934caf99
Distcheck fixes.
2009-12-11 21:02:19 +02:00
Török Edvin
482e97dbb2
Support for bytecode lines >8k.
...
Size is specified on first line (which must be <8k).
2009-12-11 16:05:38 +02:00
Török Edvin
7945ff1e97
Fix global initializer bitcasts.
2009-12-11 12:08:32 +02:00
Török Edvin
0a11015bf5
Refactor trace API, so that trace printing happens in clambc.
...
This will allow clambc to implement breakpoints, and watchpoints.
2009-12-09 17:05:05 +02:00
Török Edvin
284ffd21f2
Add support for null constant.
2009-12-09 15:15:35 +02:00
Török Edvin
124af5e8a5
Trace formatting fixes.
2009-12-09 11:43:17 +02:00
Török Edvin
65c740d7d8
Add support for tracing (if bytecode compiled with support).
...
TODO: global id 0 is now a null pointer, need to adjust rest of conversion code
accordingly.
2009-12-08 23:02:49 +02:00
