Commit Graph

253 Commits

Author SHA1 Message Date
Kostya Serebryany baf583c443 [asan] add two asan flags: fast_unwind_on_fatal and fast_unwind_on_malloc to allow using the slow CFI-based unwinder
llvm-svn: 170117
2012-12-13 09:34:23 +00:00
Alexey Samsonov a0e4706fe6 ASan: change the strategy we use for installing malloc/free/symbolization hooks on Linux: don't provide a default no-op implementations for hooks in runtime, and optionally call hooks if they are provided by the user. Don't force weak interface functions into runtime.
llvm-svn: 169641
2012-12-07 22:01:28 +00:00
Alexey Samsonov 45b6edbd1d ASan: add new interface functions - __asan_(un)poison_stack_memory. Calls to these functions are inserted by the instrumentation pass in use-after-scope mode
llvm-svn: 169201
2012-12-04 01:38:15 +00:00
Kostya Serebryany df198db1aa [asan/tsan] get rid of kPageSize completely in favor of GetPageSizeCached(). This makes the code friendly to more platforms
llvm-svn: 168537
2012-11-24 05:03:11 +00:00
Kostya Serebryany f22c697f58 [asan] get rid of some of the uses of kPageSize. The intent is to get rid of it completely to support platforms with multiple possible page sizes.
llvm-svn: 168517
2012-11-23 15:38:49 +00:00
Kostya Serebryany 734f1eb5f4 [asan/tsan] do not use __WORDSIZE macro, as it is glibc-private thing. Instead, define our own SANITIZER_WORDSIZE
llvm-svn: 168424
2012-11-21 12:38:58 +00:00
Alexey Samsonov 78c340d205 [ASan] Change __asan_set_on_error_callback to weak overridable __asan_on_error, so that ASan would call the latter even if it finds the error early (i.e. during module initialization)
llvm-svn: 165008
2012-10-02 14:06:39 +00:00
Alexey Samsonov e29c6731aa [Sanitizer/ASan] Simplify the code that prints and symbolizes stack traces. Fall back to module+offset if user-provided symbolizer failed. Use weak function __asan_symbolize instead of __asan_set_symbolize_callback in ASan interface, so that we're able to symbolize reports for errors that happen before the main() is called, for example, during module initialization.
llvm-svn: 165000
2012-10-02 12:11:17 +00:00
Kostya Serebryany 45d849c4bd [asan] add asan option log_path=PATH to let users redirect asan reports to a file PATH.PID instead of stderr
llvm-svn: 163872
2012-09-14 04:35:14 +00:00
Alexey Samsonov 5c6b93bc33 [Sanitizer] Get rid of dependency between sanitizer_common and asan/tsan runtimes: implement tool-specific Die and CheckFailed functions via callbacks
llvm-svn: 163603
2012-09-11 09:44:48 +00:00
Alexander Potapenko 38c3f9ef2f Remove the infinite recursion check for now, as we don't have __thread on Mac, and TSD is an overkill.
llvm-svn: 163393
2012-09-07 15:50:19 +00:00
Alexander Potapenko c5adb8a700 Two minor changes:
-- exit from infinite recursion in CHECK()
 -- print a verbose message if mapping of the shadow memory has failed.

llvm-svn: 163391
2012-09-07 15:34:40 +00:00
Evgeniy Stepanov 6e6817a823 [asan] Raise quarantine size a bit with ASAN_LOW_MEMORY.
Our tests expect that a 16M block will fit in the quarantine.

llvm-svn: 163384
2012-09-07 12:13:52 +00:00
Alexander Potapenko 35bc23ce58 Fix two compiler warnings: must use at least one argument for "..." in a variadic macros, signed vs. unsigned comparison.
llvm-svn: 163314
2012-09-06 13:31:13 +00:00
Kostya Serebryany f9caa28ccf [asan] increase max stack size to 256 (+test)
llvm-svn: 163308
2012-09-06 10:57:03 +00:00
Kostya Serebryany ae350f66d4 [asan] increase the maximal size of malloc/free stack
llvm-svn: 163291
2012-09-06 04:46:47 +00:00
Alexey Samsonov c402cb62fd [ASan] Add print_full_thread_history runtime option (on by default) that prints all full thread creation paths for threads involved in ASan error report
llvm-svn: 163200
2012-09-05 07:37:15 +00:00
Chandler Carruth 1aa4fef601 Relocate the external headers provided by ASan and the common sanitizer
library.

These headers are intended to be available to user code when built with
AddressSanitizer (or one of the other sanitizer's in the future) to
interface with the runtime library. As such, they form stable external
C interfaces, and the headers shouldn't be located within the
implementation.

I've pulled them out into what seem like fairly obvious locations and
names, but I'm wide open to further bikeshedding of these names and
locations.

I've updated the code and the build system to cope with the new
locations, both CMake and Makefile. Please let me know if this breaks
anyone's build.

The eventual goal is to install these headers along side the Clang
builtin headers when we build the ASan runtime and install it. My
current thinking is to locate them at:

  <prefix>/lib/clang/X.Y/include/sanitizer/common_interface_defs.h
  <prefix>/lib/clang/X.Y/include/sanitizer/asan_interface.h
  <prefix>/lib/clang/X.Y/include/sanitizer/...

But maybe others have different suggestions?

Fixing the style of the #include between these headers at least unblocks
experimentation with installing them as they now should work when
installed in these locations.

llvm-svn: 162822
2012-08-29 02:27:54 +00:00
Kostya Serebryany bb6f165952 [asan] get rid of AsanPrintf in favor of Printf from sanitizer_common
llvm-svn: 162746
2012-08-28 11:34:40 +00:00
Alexey Samsonov e67a5dd8e1 [Sanitizer] Use low-level allocator in flag parsing to avoid calling malloc() before ASan/TSan initialization is done
llvm-svn: 162673
2012-08-27 14:04:54 +00:00
Alexey Samsonov dc8d1f1039 [Sanitizer] move low-level (mmap-based) allocator to sanitizer_common
llvm-svn: 162663
2012-08-27 09:30:58 +00:00
Alexander Potapenko 00492cab3e Revert the erroneous changes made to Makefile.old in r162547
Remove a spare newline from asan_rtl.cc

llvm-svn: 162548
2012-08-24 09:31:53 +00:00
Alexander Potapenko fefc1e989c If the program is linked to a dynamic ASan runtime which is not present in DYLD_INSERT_LIBRARIES
(which, in turn, is required for our interceptors to take effect), re-exec the program with
DYLD_INSERT_LIBRARIES set.

llvm-svn: 162547
2012-08-24 09:22:05 +00:00
Alexey Samsonov 419f610a74 [Sanitizer] Switch the symbolization strategy that would be used by sanitizer tools family: as compiling in-process symbolizer into runtime involves certain difficulties, we may instead launch an external symbolizer program (fork + execl) in a subprocess and communicate with it via pipe.
llvm-svn: 162437
2012-08-23 07:32:06 +00:00
Alexey Samsonov a85b6b8154 [ASan] get rid of ASAN_USE_EXTERNAL_SYMBOLIZER compiler def in favor of __asan_set_symbolize_callback interface function. Now the user doesn't have to recompile ASan runtime to provide its own symbolizer
llvm-svn: 162358
2012-08-22 13:31:37 +00:00
Alexey Samsonov de17f86655 [ASan] make ASan malloc/free hooks weak interface functions, overridable by user. Now the user can control malloc/free hooks without recompiling ASan runtime
llvm-svn: 162355
2012-08-22 10:12:47 +00:00
Kostya Serebryany 68d9c9da40 [asan] fix mac build
llvm-svn: 162279
2012-08-21 14:43:36 +00:00
Kostya Serebryany 676bcdb838 [asan] run-time part of the initialization order checker. Patch by Reid Watson with some bits from kcc. The sub-pass is off by default for now. On simple tests it works fine.
llvm-svn: 162278
2012-08-21 14:10:25 +00:00
Alexander Potapenko 9a168a7405 Use SANITIZER_INTERFACE_ATTRIBUTE instead of __attribute__((visibility("default")))
Export CheckFailed, asan_malloc, asan_free, asan_memalign, AsanStackTrace::CompressStack, AsanStackTrace::UncompressStack from the dynamic runtime library.

llvm-svn: 161943
2012-08-15 11:57:52 +00:00
Alexey Samsonov 517842b2fc [ASan] make sure __asan_default_options symbol is exported
llvm-svn: 161873
2012-08-14 15:03:24 +00:00
Alexey Samsonov eb39adc9fa [ASan] make sure __asan_default_options gets default visibility, port corresponding test to lit
llvm-svn: 161869
2012-08-14 13:54:28 +00:00
Alexey Samsonov b39b0fa9a0 [ASan] add __asan_set_on_error_callback into force_interface_symbols (thanks to cool test by glider@)
llvm-svn: 161756
2012-08-13 14:05:00 +00:00
Alexander Potapenko 8aba007fe1 Add a test checking that all the "__asan_" interface functions are present in a binary built with -dead_strip.
Fix force_interface_symbols() so that none of the interface symbols is stripped.

llvm-svn: 161582
2012-08-09 16:05:17 +00:00
Alexey Samsonov f688412b8c [ASan] Move __asan_report_error implementation to asan_report.cc
llvm-svn: 161574
2012-08-09 10:56:57 +00:00
Alexander Potapenko ba6174889c Use a switch instead of a simple condition in force_interface_symbols().
Otherwise Clang eliminates everything after the first interface symbol that is marked noreturn.

llvm-svn: 161573
2012-08-09 09:46:12 +00:00
Alexey Samsonov 4ce12349d6 [ASan] move some functions that describe addresses to asan_report.cc
llvm-svn: 161571
2012-08-09 09:06:52 +00:00
Alexey Samsonov 0295edbfd5 [ASan] add new ASan option 'strip_path_prefix' to remove useless prefices from filenames in stack traces
llvm-svn: 161321
2012-08-06 13:00:21 +00:00
Kostya Serebryany bb0ade6daa [asan] don't return from a never-return function. fix a test that had a chain of bugs instead of just one
llvm-svn: 160719
2012-07-25 10:56:09 +00:00
Alexey Samsonov c145b02607 [ASan] fixup for r160712: provide a default definition for weak __asan_default_options()
llvm-svn: 160718
2012-07-25 10:40:57 +00:00
Alexander Potapenko 9bac1cedbc Make __asan_default_options a weak function that returns a const char*.
Users may define it to override the default ASan options.
This function has to be marked with __attribute__((no_address_safety_analysis)), because it is called before ASan is fully initialized.

Add an output test checking the __asan_default_options functionality.

llvm-svn: 160712
2012-07-25 09:18:43 +00:00
Alexander Potapenko 7f3e84c9fd For wild addresses in the shadow or shadow gap areas print an error message instead of crashing on a check.
Add AddressSanitizer.MemsetWildAddressTest that makes sure a proper error message is printed.

llvm-svn: 160620
2012-07-23 08:22:27 +00:00
Kostya Serebryany 78713bc574 [asan] get rid of the last operator new call in asan rtl
llvm-svn: 160347
2012-07-17 07:20:13 +00:00
Alexey Samsonov 2d4bd13eb6 [Sanitizer] fix CMake build
llvm-svn: 159988
2012-07-10 09:17:06 +00:00
Alexey Samsonov 9f666ea6ca [ASan] move flags description to separate header, add comments about them.
llvm-svn: 159985
2012-07-10 07:41:27 +00:00
Alexey Samsonov 2467ca5010 [ASan] cleanup: remove dead flag
llvm-svn: 159934
2012-07-09 15:11:28 +00:00
Alexey Samsonov 34efb8e9b9 [ASan] Use common flags parsing machinery.
llvm-svn: 159933
2012-07-09 14:36:04 +00:00
Dmitry Vyukov 6fa46f7003 tsan/asan: unify atomics (move atomics from tsan to sanitizer_common)
llvm-svn: 159437
2012-06-29 16:58:33 +00:00
Kostya Serebryany 875f99a6bf [asan] fix -Wsign-compare
llvm-svn: 159083
2012-06-23 16:30:48 +00:00
Alexey Samsonov f8947a3360 [ASan] fix lint error
llvm-svn: 158905
2012-06-21 08:13:49 +00:00
Alexander Potapenko 1bde28b464 Factor the common code out of cf_free and mz_free.
Introduce the mac_ignore_invalid_free flag (0 by default) which makes both cf_free and mz_free ignore invalid free invocations and leak memory.

llvm-svn: 158885
2012-06-21 01:01:20 +00:00
Alexey Samsonov 156958dd0c [Sanitizer] move all the rest re-implementations of libc functions from ASan runtime to common sanitizer runtime
llvm-svn: 158519
2012-06-15 13:09:52 +00:00
Alexey Samsonov 40e5128412 [Sanitizer] move ShadowRangeIsAvailable and several defines to common runtime
llvm-svn: 158499
2012-06-15 07:29:14 +00:00
Alexey Samsonov ae1e171b72 [Sanitizer] move DumpProcessMap and DisableCoreDumper to common runtime
llvm-svn: 158490
2012-06-15 06:08:19 +00:00
Alexey Samsonov c70d1086f6 [Sanitizer] move rest of mmap routines to common sanitizer runtime
llvm-svn: 158452
2012-06-14 14:42:58 +00:00
Alexey Samsonov 0c53a38abb [Sanitizer] move portable GetEnv to common sanitizer runtime
llvm-svn: 158451
2012-06-14 14:07:21 +00:00
Kostya Serebryany 0b14fd855b [asan] slow 16-byte redzones (still experimental)
llvm-svn: 158143
2012-06-07 09:15:48 +00:00
Alexey Samsonov fe44fbd750 [Sanitizer] Move ReadFileToBuffer to sanitizer_common.
llvm-svn: 158138
2012-06-07 05:38:26 +00:00
Alexey Samsonov 40d5b772e5 [Sanitizer] Switch to common mmap/munmap routines in ASan run-time.
llvm-svn: 158078
2012-06-06 16:15:07 +00:00
Alexey Samsonov e428779dbf [Sanitizer] Use common CHECK machinery. Currently each tool has to define its own CheckFailed function.
llvm-svn: 158075
2012-06-06 15:22:20 +00:00
Kostya Serebryany 79437fe376 [asan] make tid u32 instead of int
llvm-svn: 158074
2012-06-06 15:06:58 +00:00
Alexey Samsonov 51ae983718 [Sanitizer]: Introduce a common internal printf function. For now, also use tool-specific wrappers TsanPrintf (its output is controlled by TSan flags) and AsanPrintf (which copies its results to the ASan-private buffer). Supported formats: %[z]{d,u,x}, %s, %p. Re-write all format strings in TSan according to this format (this should have no effect on 64-bit platforms).
llvm-svn: 158065
2012-06-06 13:11:29 +00:00
Alexey Samsonov cd96c44dce [ASan] more format fixes
llvm-svn: 158060
2012-06-06 10:54:25 +00:00
Alexey Samsonov 461820ad67 [ASan] Make printf arguments match format strings better.
llvm-svn: 158059
2012-06-06 10:46:00 +00:00
Alexey Samsonov c4b201308b [ASan] Use __sanitizer::Die() in ASan runtime.
llvm-svn: 158051
2012-06-06 07:02:44 +00:00
Alexey Samsonov 8602c65719 [Sanitizer] remove using namespace __sanitizer lines
llvm-svn: 157999
2012-06-05 14:05:09 +00:00
Alexey Samsonov ef2e2cfd33 [Sanitizer] Use common defines for ASan and TSan runtime. Split defines between interface defines (can be visible in user code that includes interface ASan/TSan headers) and internal defines.
llvm-svn: 157998
2012-06-05 13:50:57 +00:00
Alexey Samsonov 1b12eda7ec [ASan] use internal_{close,read,write} in ASan runtime.
llvm-svn: 157991
2012-06-05 08:48:10 +00:00
Alexey Samsonov f5e2dc3c3d [ASan] use internal_open from sanitizer_libc in ASan runtime
llvm-svn: 157986
2012-06-05 07:25:47 +00:00
Alexey Samsonov 485d3dc363 Remove file-type tags for .cc files in ASan run-time library
llvm-svn: 157927
2012-06-04 13:50:10 +00:00
Alexey Samsonov 4ecc8f43c7 [ASan] Use ASan option symbolize to turn on internal symbolizer (in development)
llvm-svn: 157924
2012-06-04 11:20:17 +00:00
Kostya Serebryany 1d35d155fd [asan] more renaming
llvm-svn: 157747
2012-05-31 15:02:07 +00:00
Kostya Serebryany 8d03204204 [asan] more renaming
llvm-svn: 157746
2012-05-31 14:35:53 +00:00
Kostya Serebryany 1b71207f48 [asan,tsan] introduce sanitizer_common/sanitizer_defs.h and perform some renaming in asan rt. More to come.
llvm-svn: 157743
2012-05-31 14:11:07 +00:00
Alexander Potapenko 6e216bea86 Fix a bug in parsing boolean flags: we used to take the first char of the key=value string
instead of the first character of the value.

llvm-svn: 157692
2012-05-30 15:28:45 +00:00
Alexander Potapenko 93b2c7d516 Be less verbose when parsing the default options.
llvm-svn: 157691
2012-05-30 14:12:20 +00:00
Kostya Serebryany 458b4006b2 [asan,tsan] Add a new directory compiler-rt/lib/sanitizer_common
which will contain code shared between asan and tsan run-times.

Naming is hard. If you can suggest a better name for the directory -- speak up.

llvm-svn: 157611
2012-05-29 12:18:18 +00:00
Alexey Samsonov 1cbe656d66 Fixing ASan build on Win: don't use __asan_default_options
llvm-svn: 157608
2012-05-29 09:39:01 +00:00
Alexander Potapenko 0efd915d92 Rework the flags machinery a bit.
Clients may define the __asan_default_options char string containing the default options for the tool now.

llvm-svn: 157582
2012-05-28 16:21:19 +00:00
Alexander Potapenko 4e424b85e3 Typo fix.
llvm-svn: 157477
2012-05-25 15:56:40 +00:00
Alexander Potapenko 85e93ef612 Factor ParseAsanOptions outside __asan_init
llvm-svn: 157473
2012-05-25 15:37:16 +00:00
Alexander Potapenko 442002568c Introduce the check_malloc_usable_size flag (on by default).
When the flag is set to zero, we do not check for errors in malloc_usable_size.
This may be useful to work around a bug in Nvidia drivers prior to 295.*

llvm-svn: 157472
2012-05-25 15:20:13 +00:00
Alexander Potapenko a1c3c6582c Increase error_message_buffer_size to 64K (16K is insufficient for large programs)
llvm-svn: 156711
2012-05-12 12:33:41 +00:00
Alexander Potapenko 66e6de10cf Fix ReadFileToBuffer to return 0 on failure (-1 is too large if returned as size_t).
llvm-svn: 156538
2012-05-10 12:03:09 +00:00
Kostya Serebryany b7f68dee45 [asan] minor change to please gcc
llvm-svn: 154201
2012-04-06 20:19:59 +00:00
Alexey Samsonov 6a19d5d209 [ASan] move replacements for new/delete to separate file
llvm-svn: 154167
2012-04-06 08:21:08 +00:00
Kostya Serebryany 1490c7996f [asan] add flags: disable_core, abort_on_error and unmap_shadow_on_exit
llvm-svn: 154159
2012-04-06 01:27:11 +00:00
Alexander Potapenko 08342aa1a1 Introduce the use_sigaltstack flag (off by default), which enables using alternate
per-thread stacks for signal handling. This allows to print more verbose error reports
for stack overflows.

llvm-svn: 154092
2012-04-05 10:54:52 +00:00
Evgeniy Stepanov 823085a8f4 [asan] Support for %z to Printf()
At the moment, asan internal Printf() uses %l modifier for printing
values of size_t and related types. This works, because we control
both the implementation of Printf and all its uses, but can be a
little misleading.

This change adds support for %z to Printf(). All callers that print
sizes and pointers as integers are switched to %zu / %zx.

llvm-svn: 153177
2012-03-21 11:32:46 +00:00
Alexey Samsonov cae79fbab9 [ASan]: re-enable noreturn attribute on posix
llvm-svn: 153082
2012-03-20 10:14:55 +00:00
Alexander Potapenko fa391a7df2 [ASan] Print the parsed ASAN_OPTIONS for verbosity>0.
Move the flags around slightly.

llvm-svn: 152929
2012-03-16 16:38:31 +00:00
Kostya Serebryany 54a3cac5c5 [asan] fix unwinding inside libc intercepors (asan issue #46)
llvm-svn: 152768
2012-03-15 01:36:00 +00:00
Kostya Serebryany baf68ffcf8 [asan] fix -Wnull-conversion warnings
llvm-svn: 152747
2012-03-14 22:48:09 +00:00
Alexander Potapenko b780ad9117 Force __asan_handle_no_return into the binary built with ASan.
llvm-svn: 152117
2012-03-06 11:45:59 +00:00
Alexander Potapenko 8e9d772c5a Force __asan_set_death_callback into the resulting binary.
llvm-svn: 151808
2012-03-01 14:39:21 +00:00
Alexander Potapenko 7e07f56811 Introduce __asan_set_error_report_callback() to allow the client program post-process the error reports.
If the callback is set, Report() and Printf() print the reports into a buffer (together with stderr), which is then passed to the client.

llvm-svn: 151528
2012-02-27 14:06:48 +00:00
Evgeniy Stepanov d84e16e6a3 Replace some #ifdef(s) with plain if(s).
llvm-svn: 151526
2012-02-27 13:07:29 +00:00
Alexey Samsonov d6651509d0 AddressSanitizer: get rid of stdlib.h and add (smaller) stddef.h instead
llvm-svn: 151162
2012-02-22 14:07:06 +00:00
Timur Iskhodzhanov 94602b48ee [ASan] Fix style + suppress 'long' lint warnings
llvm-svn: 151149
2012-02-22 09:28:14 +00:00
Alexander Potapenko 2c0ed61c7a Move the contents of AsanProcMaps::Dump() into AsanDumpProcessMaps() for Posix systems.
Define AsanDumpProcessMaps as unimplemented on Windows.

This should fix the Windows build.

llvm-svn: 151147
2012-02-22 09:11:55 +00:00
Alexander Potapenko c259ab3cac Dump the process memory map if any of the mappings interleaves with the shadow.
llvm-svn: 151141
2012-02-22 08:27:32 +00:00
Timur Iskhodzhanov a1c987ff38 [ASan] Add __asan_init to the list of C dynamic initializers to support /MD on Windows
llvm-svn: 151059
2012-02-21 16:24:23 +00:00
Alexey Samsonov 0d0b406aba AddressSanitizer: use custom strtol/atoll functions
llvm-svn: 150812
2012-02-17 16:15:09 +00:00
Alexey Samsonov 8e7bfceb98 AddressSanitizer: fix lint
llvm-svn: 150802
2012-02-17 08:31:10 +00:00
Evgeniy Stepanov 5d47e9164c [asan] Allocator tweaks for low memory systems.
llvm-svn: 150689
2012-02-16 13:35:11 +00:00
Kostya Serebryany 10dbd68bd2 [asan] don't do AsanDie twice
llvm-svn: 150641
2012-02-16 00:40:18 +00:00
Timur Iskhodzhanov d2a9075de0 [ASan] Define an internal implementation of strchr to make stack OOB tests pass on Windows
llvm-svn: 150499
2012-02-14 19:33:04 +00:00
Kostya Serebryany fcd535ba6c [asan] implement __asan_set_death_callback
llvm-svn: 150414
2012-02-13 21:24:29 +00:00
Alexander Potapenko 720aaefb8d Move the non-trivial implementation of AsanShadowRangeIsAvailable to asan_mac.cc
to avoid crashes on Linux and Win.

llvm-svn: 150398
2012-02-13 17:09:40 +00:00
Alexander Potapenko ef4521e239 Check whether the shadow memory range intersects with an existing mapping.
This should help to detect problems with ASLR or linker tricks early.

llvm-svn: 150391
2012-02-13 15:11:23 +00:00
Evgeniy Stepanov 45fd36110b [asan] Default visibility for __asan_handle_no_return.
llvm-svn: 150372
2012-02-13 11:55:24 +00:00
Timur Iskhodzhanov 7ce3e5bb8e [asan] The first version of the RTL for Windows, reviewed at http://codereview.appspot.com/5647052
llvm-svn: 150185
2012-02-09 17:20:14 +00:00
Kostya Serebryany 0394da7bea [asan] unpoison the stack before every noreturn call. Fixes asan issue 37. rt part
llvm-svn: 150101
2012-02-08 21:33:27 +00:00
Alexey Samsonov e725478e2f AddressSanitizer: replace all "real_X" calls with "REAL(X)"
llvm-svn: 150073
2012-02-08 13:45:31 +00:00
Alexey Samsonov 23e3b90319 AddressSanitizer: Replace __attribute__ with macro (for Win compatibility). Patch by timurrrr@google.com
llvm-svn: 149686
2012-02-03 08:37:19 +00:00
Kostya Serebryany bca91defcb [asan] new run-time flag: sleep_before_dying (asan Issue #31)
llvm-svn: 149306
2012-01-31 00:52:18 +00:00
Alexander Potapenko f519564d7c Make compiler-rt/trunk/lib/asan compileable with Visual Studio 2008 on Windows.
Patch by Timur Iskhodzhanov (timurrrr@google.com)

To test:
$ cl /c *.c*
in the asan directory.

The code fails to link if you omit the "/c" part but that's one of the
next steps,
as well as a few TODO's I've put into the Windows-specific code.

llvm-svn: 149130
2012-01-27 15:15:04 +00:00
Evgeniy Stepanov 84c44a8b8b EHABI-based stack trace on ARM.
The change removes the unused FLAG_fast_unwind, and forces EHABI-based unwind
on ARM, and fast (FP-based) unwind everywhere else.

llvm-svn: 148468
2012-01-19 11:34:18 +00:00
Kostya Serebryany 86d4492627 [asan] fix ReadFileToBuffer to correctly handle files from /proc/ (asan issue 27)
llvm-svn: 148311
2012-01-17 18:00:07 +00:00
Alexander Potapenko 553c208d22 This patch moves the code reading /proc/self/environ into AsanGetEnv
in asan_linux.cc, because /proc is unavailable on Mac.
Instead the Mac version of AsanGetEnv iterates over the array of
environment variables obtained from _NSGetEnviron()

llvm-svn: 148114
2012-01-13 12:59:48 +00:00
Evgeniy Stepanov 837fe5bcc9 Call asan_init from .preinit_array.
Protected by an #ifdef, disabled by default.

llvm-svn: 147932
2012-01-11 08:17:19 +00:00
Kostya Serebryany 0c8fa7b8ed [asan] remove OS-dependent includes from asan_interceptors.h
llvm-svn: 147916
2012-01-11 02:32:40 +00:00
Kostya Serebryany edb4a8a128 [asan] don't include unistd.h in the headers
llvm-svn: 147811
2012-01-09 23:11:26 +00:00
Kostya Serebryany 65518014e2 [asan] don't use strstr/strncat from libc, use our own versions instead
llvm-svn: 147807
2012-01-09 22:20:49 +00:00
Kostya Serebryany 5be458ccfd [asan] refactoring: move some common linux/mac code to asan_posix.cc
llvm-svn: 147788
2012-01-09 19:18:27 +00:00
Kostya Serebryany 9fd01e5ea5 [asan] refactoring: move all interceptors to a single file
llvm-svn: 147784
2012-01-09 18:53:15 +00:00
Kostya Serebryany 3f4b9bb4a0 [asan] do not use new/delete for the internal thread structure
llvm-svn: 147674
2012-01-06 19:44:11 +00:00
Kostya Serebryany 25d6c1b3c3 [asan] move more code into OS-specific files
llvm-svn: 147671
2012-01-06 19:11:09 +00:00
Kostya Serebryany adebf0caf5 [asan] cleanup: remove the SIGILL-related code (rt part)
llvm-svn: 147665
2012-01-06 18:02:04 +00:00
Kostya Serebryany 2b08718bba [asan] move more stuff to OS-specific files
llvm-svn: 147647
2012-01-06 02:12:25 +00:00
Kostya Serebryany cd271f5440 [asan] implement our own /proc/self/maps reader and use it on linux instead of sysinfo.h
llvm-svn: 147581
2012-01-05 00:44:33 +00:00
Kostya Serebryany d2d043be45 [asan] force the __asan_unregister_globals to reside in the runtime library
llvm-svn: 147329
2011-12-28 23:35:46 +00:00
Kostya Serebryany a772096156 [asan] refactoring: don't #include <sys/mman.h> in non-os-specific files
llvm-svn: 147328
2011-12-28 23:28:54 +00:00
Kostya Serebryany 6c4bd806fa [asan] use custom libc-free getenv; a bit of refactoring around mmap calls
llvm-svn: 147326
2011-12-28 22:58:01 +00:00
Kostya Serebryany 2b87e403c4 [asan] no ucontext on Android. patch by eugeni.stepanov@gmail.com
llvm-svn: 147320
2011-12-28 20:22:21 +00:00
Kostya Serebryany 76eca5e53a [asan] enable memset/memcpy/memmove interceptors in asan-rt (in addition to those in the compiler module)
llvm-svn: 147319
2011-12-28 19:55:30 +00:00
Kostya Serebryany 46c70d33d7 [asan] make sure __asan_report_* functions are not inlined (so that they are not optimized away and are kept in the resulting library). Patch by glider@google.com
llvm-svn: 147302
2011-12-28 00:59:39 +00:00
Kostya Serebryany dd1386f882 new() has slightly different signature on Android. This patch adds the
llvm-svn: 147300
2011-12-27 23:11:09 +00:00
Kostya Serebryany 6d37656c1a [asan] revert r146529: we do need to build asan-rt as a shared library. Will need to find a different way to modify preinit_array
llvm-svn: 146703
2011-12-15 23:08:00 +00:00
Kostya Serebryany 7fb33a3d40 [asan] poison the internal asan heap memory, just in case. Change Printf to Report when debugging globals.
llvm-svn: 146663
2011-12-15 17:41:30 +00:00
Kostya Serebryany 9bd5208965 [asan] insert __asan_init into ".preinit_array" section. Linux-only.
llvm-svn: 146529
2011-12-14 00:19:03 +00:00
Kostya Serebryany 72fde3727e [asan] make use-after-return mode more robust: allow to call instrumented functions while reporting an error
llvm-svn: 146231
2011-12-09 01:49:31 +00:00
Kostya Serebryany b50a539eba [asan] move build-time config options from makefile to source (otherwise we need config options in all makefiles)
llvm-svn: 146161
2011-12-08 18:30:42 +00:00
Kostya Serebryany f0d799a6bc [asan] fix the error message for 16-byte accesses (it previously printed 'unknown-crash')
llvm-svn: 146075
2011-12-07 21:30:20 +00:00
Kostya Serebryany ca207f0473 [asan] minor cleanup
llvm-svn: 145966
2011-12-06 21:10:15 +00:00
Kostya Serebryany 49a182fa12 [asan] always collect malloc statstics (removed FLAG_stats)
llvm-svn: 145838
2011-12-05 19:17:53 +00:00
Kostya Serebryany 93927f9e01 [asan] don't require __cxa_throw to be present in the process. This is the last dependency on libstdc++
llvm-svn: 145821
2011-12-05 17:56:32 +00:00
Kostya Serebryany e4bada2c94 [asan] get rid of std::map. No STL and almost no libstdc++ left.
llvm-svn: 145706
2011-12-02 21:02:20 +00:00
Kostya Serebryany 2d27cdf621 [asan] minimize the use of STL. One bit is still left.
llvm-svn: 145691
2011-12-02 18:42:04 +00:00
Daniel Dunbar cf7fb02388 build/asan: Better fix for ASAN i386 build on Darwin, this causes us to see the
non-standard struct names.

llvm-svn: 145658
2011-12-02 00:52:55 +00:00
Daniel Dunbar 8a5fd211ab build/asan: Fix ASAN build for i386, for reasons I don't really understand we
get the DARWIN_UNIX03 definition on x86_64 but not on i386.

llvm-svn: 145657
2011-12-02 00:45:48 +00:00