136 Commits (2c859ec754734dd15f29eecd28aadec952d325d0)

Author	SHA1	Message	Date
Török Edvin	71ca3536c4	Fix hung clamd on FreeBSD (bb #2235). ... bytecode selfcheck running under JIT ran too early, and spawned a thread. Then clamd forked. threads + fork = bad idea. So prevent the thread from being spawned in selfcheck mode. So at the time of fork clamd will still be single threaded as in 0.96.1.	16 years ago
Török Edvin	f1d071c8ed	Avoid false 'Verification error' messages (bb #2239). ... The fix for bb #1924 already fixed most of these, by using the stackprotectreq attribute to determine if a function was already verified, not to verify it twice. However very simple bytecodes don't get that attribute applied. Fix this by always applying the stackprotect attribute, and checking for that attribute instead of stackprotectreq.	16 years ago
Török Edvin	c85060ff79	Move environment detection code to bytecode_detect.c. ... This is in preparation for bug #2078, so that the bytecodes can turn themselves off based on more than just the arch itself.	16 years ago
Török Edvin	8977ed61fe	Update paxctl message to 'paxctl -cm' (bb #2092).	16 years ago
Török Edvin	a5a19f4518	bytecode: PaX and selfcheck. ... Detect PaX and fallback to intepreter if needed (bb #2092). Recent PaX versions deny the RWX mapping, but older versions silently change it to RW, which causes the program to die as soon as it tries to execute JITed code. Add selfcheck on startup (bb #2092). This will run a very simple bytecode on startup in both JIT and interpreter mode. The bytecode only calls 1 libclamav API and returns.	16 years ago
Török Edvin	fa0a9143bb	Fix types for store/copy instructions.	16 years ago
Török Edvin	daad92ace3	Relax bounds checks. It was rejecting correct code. ... Bounds checks were too strict, causing the bytecode to abort when it shouldn't. This happened when trying to access the last byte of an array, the verifier was too conservative and considered to be out of bounds, when in fact it wasn't. This is an update of the runtime verifier from the bytecode compiler.	16 years ago
Török Edvin	7a7365efe9	0.96.1 new APIs (cli_map etc.)	16 years ago
Török Edvin	b0a5ddb3a5	Fix memcmp and memmove. ... Due to a bug src and dest were always the same, so they were never working in JIT mode.	16 years ago
Török Edvin	2a7f1cdaf5	Print C++ compiler version. ... This requires exporting a function from libclamav, since clamconf is not C++...	16 years ago
Török Edvin	e4a0f2c94f	fix compiler warnings (bb #1872, bb #1934, bb #1935)	16 years ago
Török Edvin	f121d43df8	Workaround LLVM JIT PowerPC relocation bug (bb #1921). ... Based on Gary Benson's workaround for OpenJDK Shark / IcedTea.	16 years ago
Török Edvin	556eaf0442	Update ClamBCRTChecks.cpp from bytecode compiler: ... Check bounds of each pointer passed to/from APIcalls, forbid recursion.	16 years ago
Török Edvin	b2de4fd85f	Minor optimization in JIT loader.	16 years ago
Török Edvin	cbec3f2446	Update SELinux message.	16 years ago
Török Edvin	44e134312c	More fixes for pdf.cbc.	16 years ago
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!	16 years ago
Török Edvin	11cee1b7de	Disable JITDebugRegisterer, and fix unit_tests rule.	16 years ago
Török Edvin	6ea339aeab	Fix bswap.	16 years ago
Török Edvin	bdd9aeaeeb	Use a watchdog thread. Also make timeout be ms instead of us.	16 years ago
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; }	16 years ago
Török Edvin	b63681a52b	Introduce BytecodeTimeout.	16 years ago
Török Edvin	884a0b8f8d	Support for timeouts.	16 years ago
Török Edvin	84edf09bba	Fix clambc -p.	16 years ago
Török Edvin	e2752b2cc8	Fix valgrind warning.	16 years ago
Török Edvin	52d0d8bc7e	More fixes for global vars in the interpreter.	16 years ago
Török Edvin	09667cdd3b	Print size and location of JITed code.	16 years ago
Török Edvin	6ad39a4099	zlib/buffer apis.	16 years ago
Török Edvin	75e18b29c2	minimalistic zlib api.	16 years ago
Török Edvin	b56bea54d3	New API for buffer fill.	16 years ago
Török Edvin	aa745db74d	Add clamscan commandline to load bytecode in debug mode.	16 years ago
Török Edvin	f60c59a471	bb #1800.	16 years ago
Török Edvin	04d11afedb	Update to new LLVM API. ... ModuleProvider is gone!	16 years ago
Török Edvin	6eeadbfeda	dconf for bytecode.	16 years ago
Török Edvin	1e30496d2a	runtime checks verifier.	16 years ago
Török Edvin	236fb13647	New pointer handling rules.	16 years ago
Török Edvin	847d7fc1b8	2009->2010	16 years ago
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.	16 years ago
Török Edvin	bcb354a654	_GLIBCXX_PARALLEL is not supported: it creates threads before we fork() causing ... deadlock.	16 years ago
Török Edvin	a7b7a64833	fix compiler warning.	16 years ago
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.	16 years ago
Török Edvin	be43f951c6	BytecodeSecurity setting.	16 years ago
Török Edvin	4395bb9acf	bytecode ptrdiff32 opcode.	16 years ago
Török Edvin	2d45ef0616	Support for malloc in bytecode. Fix crash with mismatched api/flevel versions.	16 years ago
Török Edvin	8997b14725	bswap.	16 years ago
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.	16 years ago
Török Edvin	c52e92748e	Fix some warnings from clang++ bytecode2llvm.cpp.	16 years ago
Török Edvin	8d18898743	add regalloc local for debug purposes.	16 years ago
Török Edvin	9463f9fd90	Stack protector support.	16 years ago
Török Edvin	688799d126	yc_bytecode is able to unpack a file now!	16 years ago