Commit Graph

482 Commits

Author SHA1 Message Date
Kostya Serebryany b0e2506d97 [asan] make AddressSanitizer to be a FunctionPass instead of ModulePass. This will simplify chaining other FunctionPasses with asan. Also some minor cleanup
llvm-svn: 165936
2012-10-15 14:20:06 +00:00
Micah Villmow 0c61134d8d Revert 165732 for further review.
llvm-svn: 165747
2012-10-11 21:27:41 +00:00
Micah Villmow 083189730e Add in the first iteration of support for llvm/clang/lldb to allow variable per address space pointer sizes to be optimized correctly.
llvm-svn: 165726
2012-10-11 17:21:41 +00:00
Bill Wendling f319e9905f Have 'addFnAttr' take the attribute enum value. Then have it build the attribute object and add it appropriately. No functionality change.
llvm-svn: 165595
2012-10-10 03:12:49 +00:00
Bill Wendling 93f70b78fd Use the enum value of the attributes when adding them to the attributes builder.
llvm-svn: 165494
2012-10-09 09:11:20 +00:00
Bill Wendling c9b22d735a Create enums for the different attributes.
We use the enums to query whether an Attributes object has that attribute. The
opaque layer is responsible for knowing where that specific attribute is stored.

llvm-svn: 165488
2012-10-09 07:45:08 +00:00
Bill Wendling 70f3917b0e Convert to using the Attributes::Builder interface.
llvm-svn: 165465
2012-10-09 00:01:21 +00:00
Micah Villmow cdfe20b97f Move TargetData to DataLayout.
llvm-svn: 165402
2012-10-08 16:38:25 +00:00
Kostya Serebryany d23b18fe7f [tsan] add 3 internal flags for fine-grain control of what is instrumented and what is not.
llvm-svn: 165204
2012-10-04 05:28:50 +00:00
Dmitry Vyukov f4cb22121a tsan: prepare for migration to new memory_order enum values (ABI compatible)
llvm-svn: 165107
2012-10-03 13:00:57 +00:00
Sylvestre Ledru 91ce36c986 Revert 'Fix a typo 'iff' => 'if''. iff is an abreviation of if and only if. See: http://en.wikipedia.org/wiki/If_and_only_if Commit 164767
llvm-svn: 164768
2012-09-27 10:14:43 +00:00
Sylvestre Ledru 721cffd53a Fix a typo 'iff' => 'if'
llvm-svn: 164767
2012-09-27 09:59:43 +00:00
Bill Wendling 863bab689a Remove the `hasFnAttr' method from Function.
The hasFnAttr method has been replaced by querying the Attributes explicitly. No
intended functionality change.

llvm-svn: 164725
2012-09-26 21:48:26 +00:00
Bill Wendling 636f1a1d99 s/__llvm_gcov_flush/__gcov_flush/g
llvm-svn: 164040
2012-09-17 17:57:05 +00:00
Axel Naumann 4a1270691e Fix a few vars that can end up being used without initialization.
The cases where no initialization happens should still be checked for logic flaws.

llvm-svn: 164032
2012-09-17 14:20:57 +00:00
Bill Wendling 8d26bc38f5 Remove comment.
llvm-svn: 163945
2012-09-14 22:35:49 +00:00
Bill Wendling fb1f6681a3 Use Nick's suggestion of storing a large NULL into the GV instead of memset, which requires TargetData.
llvm-svn: 163799
2012-09-13 14:32:30 +00:00
Bill Wendling 2e6e86606a Introduce the __llvm_gcov_flush function.
This function writes out the current values of the counters and then resets
them. This can be used similarly to the __gcov_flush function to sync the
counters when need be. For instance, in a situation where the application
doesn't exit.
<rdar://problem/12185886>

llvm-svn: 163757
2012-09-13 00:09:55 +00:00
Kostya Serebryany 5f5973df08 [asan] fix lint
llvm-svn: 163205
2012-09-05 09:00:18 +00:00
Kostya Serebryany 2fa38f8ce0 [asan] extend the blacklist functionality to handle global-init. Patch by Reid Watson
llvm-svn: 163199
2012-09-05 07:29:56 +00:00
Logan Chien 9ab55b8d59 Rename ANDROIDEABI to Android.
Most of the code guarded with ANDROIDEABI are not
ARM-specific, and having no relation with arm-eabi.
Thus, it will be more natural to call this
environment "Android" instead of "ANDROIDEABI".

Note: We are not using ANDROID because several projects
are using "-DANDROID" as the conditional compilation
flag.

llvm-svn: 163087
2012-09-02 09:29:46 +00:00
Alexey Samsonov f54e3aaeaa Whitespace
llvm-svn: 162907
2012-08-30 13:47:13 +00:00
Bill Wendling 14c8a051ca Pass by pointer and not std::string.
llvm-svn: 162888
2012-08-30 01:32:31 +00:00
Bill Wendling 1f6f8c2cb7 Revert r162855 in favor of changing clang to emit the absolute coverage file path.
llvm-svn: 162883
2012-08-30 00:34:21 +00:00
Bill Wendling 11e61b9557 Use the full path to output the .gcda file.
This lets the user run the program from a different directory and still have the
.gcda files show up in the correct place.
<rdar://problem/12179524>

llvm-svn: 162855
2012-08-29 20:30:44 +00:00
Bill Wendling e8aee6b8a5 Use ArrayRef instead of SmallVector when passing vector into function.
llvm-svn: 162851
2012-08-29 18:45:41 +00:00
Benjamin Kramer 8bcc971174 Make MemoryBuiltins aware of TargetLibraryInfo.
This disables malloc-specific optimization when -fno-builtin (or -ffreestanding)
is specified. This has been a problem for a long time but became more severe
with the recent memory builtin improvements.

Since the memory builtin functions are used everywhere, this required passing
TLI in many places. This means that functions that now have an optional TLI
argument, like RecursivelyDeleteTriviallyDeadFunctions, won't remove dead
mallocs anymore if the TLI argument is missing. I've updated most passes to do
the right thing.

Fixes PR13694 and probably others.

llvm-svn: 162841
2012-08-29 15:32:21 +00:00
Kostya Serebryany 4cc511daf0 [asan/tsan] rename FunctionBlackList* to BlackList* as this class is not limited to functions any more
llvm-svn: 162566
2012-08-24 16:44:47 +00:00
Kostya Serebryany 36dfc5ceab [asan/tsan] extend the functionality of FunctionBlackList to globals and modules. Patch by Reid Watson.
llvm-svn: 162565
2012-08-24 16:40:11 +00:00
Richard Smith 976f8605e2 MaximumSpanningTree::EdgeWeightCompare: Make this comparator actually be a
strict weak ordering, and don't pass possibly-null pointers to dyn_cast.

llvm-svn: 162314
2012-08-21 21:03:40 +00:00
Kostya Serebryany f4be019fba [asan] add code to detect global initialization fiasco in C/C++. The sub-pass is off by default for now. Patch by Reid Watson. Note: this patch changes the interface between LLVM and compiler-rt parts of asan. The corresponding patch to compiler-rt will follow.
llvm-svn: 162268
2012-08-21 08:24:25 +00:00
Kostya Serebryany 1e575ab8b2 [asan] implement --asan-always-slow-path, which is a part of the improvement to handle unaligned partially OOB accesses. See http://code.google.com/p/address-sanitizer/issues/detail?id=100
llvm-svn: 161937
2012-08-15 08:58:58 +00:00
Kostya Serebryany fda7a138f7 [asan] insert crash basic blocks inline as opposed to inserting them at the end of the function. This doesn't seem to fix or break anything, but is considered to be more friendly to downstream passes
llvm-svn: 161870
2012-08-14 14:04:51 +00:00
Kostya Serebryany 0f7a80d0c3 [asan] remove the code for --asan-merge-callbacks as it appears to be a bad idea. (partly related to Bug 13225)
llvm-svn: 161757
2012-08-13 14:08:46 +00:00
Nuno Lopes f0626f2205 revert r160742: it's breaking CMake build
original commit msg:
MemoryBuiltins: add support to determine the size of strdup'ed non-constant strings

llvm-svn: 160751
2012-07-25 18:49:28 +00:00
Nuno Lopes f0441e04bd MemoryBuiltins: add support to determine the size of strdup'ed non-constant strings
llvm-svn: 160742
2012-07-25 17:29:22 +00:00
Chandler Carruth c8acd7c96b Move the initialization of the bounds checking pass. The pass itself
moved earlier. This fixes some layering issues.

llvm-svn: 160611
2012-07-22 05:19:32 +00:00
Nuno Lopes 20ea62527a move the bounds checking pass to the instrumentation folder, where it belongs. I dunno why in the world I dropped it in the Scalar folder in the first place.
No functionality change.

llvm-svn: 160587
2012-07-20 22:39:33 +00:00
Kostya Serebryany f02c6069ac [asan] make sure that the crash callbacks do not get merged (Chandler's idea: insert an empty InlineAsm). Change the order in which the new BBs are inserted: the slow path BB is insert between old BBs, the crash BB is inserted at the end. Don't create an empty BB (introduced by recent commits). Update the test. The experimental code that does manual crash callback merge will most likely be deleted later.
llvm-svn: 160544
2012-07-20 09:54:50 +00:00
Kostya Serebryany 986b8da500 [asan] more code to merge crash callbacks. Doesn't fully work yet, but allows to hold performance experiments
llvm-svn: 160361
2012-07-17 11:04:12 +00:00
Kostya Serebryany c4ce5dfe2d [asan] a bit more refactoring, addressed some of the style comments from chandlerc, partially implemented crash callback merging (under flag)
llvm-svn: 160290
2012-07-16 17:12:07 +00:00
Kostya Serebryany 874dae6119 [asan] refactor instrumentation to allow merging the crash callbacks (not fully implemented yet, no functionality change except the BB order)
llvm-svn: 160284
2012-07-16 16:15:40 +00:00
Kostya Serebryany 4273bb05d1 [asan] initialize asan error callbacks in runOnModule instead of doing that on-demand
llvm-svn: 160269
2012-07-16 14:09:42 +00:00
Chandler Carruth 8b540ab337 Revert r160254 temporarily.
It turns out that ASan relied on the at-the-end block insertion order to
(purely by happenstance) disable some LLVM optimizations, which in turn
start firing when the ordering is made more "normal". These
optimizations in turn merge many of the instrumentation reporting calls
which breaks the return address based error reporting in ASan.

We're looking at several different options for fixing this.

llvm-svn: 160256
2012-07-16 10:01:02 +00:00
Chandler Carruth 3dd6c81492 Teach AddressSanitizer to create basic blocks in a more natural order.
This is particularly useful to the backend code generators which try to
process things in the incoming function order.

Also, cleanup some uses of IRBuilder to be a bit simpler and more clear.

llvm-svn: 160254
2012-07-16 08:58:53 +00:00
Chandler Carruth 36e2ecf528 Move llvm/Support/TypeBuilder.h -> llvm/TypeBuilder.h. This completes
the move of *Builder classes into the Core library.

No uses of this builder in Clang or DragonEgg I could find.

If there is a desire to have an IR-building-support library that
contains all of these builders, that can be easily added, but currently
it seems likely that these add no real overhead to VMCore.

llvm-svn: 160243
2012-07-15 23:45:24 +00:00
Kostya Serebryany e36ae68803 [tsan] fix compile-time falilure found while building Chromium with tsan (tsan issue #3). A unit test will follow separately.
llvm-svn: 159736
2012-07-05 09:07:31 +00:00
Kostya Serebryany eeaf688c0f [asan] small code simplification
llvm-svn: 159522
2012-07-02 11:42:29 +00:00
Bill Wendling a164735baa Don't reinsert the 'atexit' function if it already exists.
llvm-svn: 159491
2012-06-30 20:21:19 +00:00
Chandler Carruth aafe0918bc Move llvm/Support/IRBuilder.h -> llvm/IRBuilder.h
This was always part of the VMCore library out of necessity -- it deals
entirely in the IR. The .cpp file in fact was already part of the VMCore
library. This is just a mechanical move.

I've tried to go through and re-apply the coding standard's preferred
header sort, but at 40-ish files, I may have gotten some wrong. Please
let me know if so.

I'll be committing the corresponding updates to Clang and Polly, and
Duncan has DragonEgg.

Thanks to Bill and Eric for giving the green light for this bit of cleanup.

llvm-svn: 159421
2012-06-29 12:38:19 +00:00