791e65dcfb
Overhaul the symbolizer interface.
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This moves away from creating the symbolizer object and initializing the
external symbolizer as separate steps. Those steps now always take place
together.
Sanitizers with a legacy requirement to specify their own symbolizer path
should use InitSymbolizer to initialize the symbolizer with the desired
path, and GetSymbolizer to access the symbolizer. Sanitizers with no
such requirement (e.g. UBSan) can use GetOrInitSymbolizer with no need for
initialization.
The symbolizer interface has been made thread-safe (as far as I can
tell) by protecting its member functions with mutexes.
Finally, the symbolizer interface no longer relies on weak externals, the
introduction of which was probably a mistake on my part.
Differential Revision: http://llvm-reviews.chandlerc.com/D1985
llvm-svn: 193448
2013-10-25 23:03:29 +00:00
333e0cb055
Revert r190520 as it wasn't the right fix.
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llvm-svn: 190524
2013-09-11 12:53:04 +00:00
2b3f143f23
Add empty virtual destructor...
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... as this otherwise triggers -Wnon-virtual-dtor.
llvm-svn: 190520
2013-09-11 12:28:15 +00:00
7a36e6126b
[Sanitizer] Refactor symbolization interface: use class instead of several functions. Move some code around to get rid of extra source files
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llvm-svn: 190410
2013-09-10 14:36:16 +00:00
5b5c99d219
ASan, LSan, MSan: try to find llvm-symbolizer binary in PATH if it is not provided. Now we don't need to explicitly set the location of llvm-symbolizer in lit test configs.
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llvm-svn: 189801
2013-09-03 13:22:51 +00:00
eee13914e2
Define SANITIZER_INTERFACE_ATTRIBUTE on Windows and fix all the places where SANITIZER_INTERFACE_ATTRIBUTE or SANITIZER_ATTRIBUTE_WEAK are used
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llvm-svn: 188261
2013-08-13 11:42:45 +00:00
6a5b0758ec
Demangle names using pluggable internal symbolizer if possible
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llvm-svn: 185146
2013-06-28 12:30:24 +00:00
c8e7364763
[Sanitizer] support running external llvm-symbolizer on Mac
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llvm-svn: 183730
2013-06-11 08:13:36 +00:00
112e5ba281
[nolibc] Unweak SymbolizerPrepareForSandboxing and move it to libc-independent part.
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Fixes the Go build.
Differential Revision: http://llvm-reviews.chandlerc.com/D877
llvm-svn: 182851
2013-05-29 12:11:43 +00:00
fb1a9f17e3
[nolibc] Make SymbolizerPrepareForSandboxing weak and optional.
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Differential Revision: http://llvm-reviews.chandlerc.com/D872
llvm-svn: 182765
2013-05-28 11:05:05 +00:00
5b2669049a
[nolibc] Make AddressInfo::Clear a weak function.
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llvm-svn: 182743
2013-05-27 21:00:36 +00:00
6535f510a3
[ASan] Introduce SymbolizerPrepareForSandboxing(), which is a no-op on every platform except Linux (because we don't support sandboxing anywhere else yet)
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On Linux we pre-cache the value of readlink("/proc/self/exe"), so that it can be later used when the sandbox has been turned on.
llvm-svn: 182579
2013-05-23 11:53:36 +00:00
c787d42f40
[nolibc] Move symbolizer to RTSanitizerCommonLibc, and make it optional using a weak symbol.
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llvm-svn: 182372
2013-05-21 12:08:37 +00:00
2b42716213
[asan] fix powerpc build and one test; fix lint
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llvm-svn: 181881
2013-05-15 12:36:29 +00:00
4b603e5c50
[sanitizer] Filtering in GetListOfModules.
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llvm-svn: 181791
2013-05-14 14:04:06 +00:00
29f335ae80
tsan: symbolizer "flush caches" functinality
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llvm-svn: 177388
2013-03-19 10:23:17 +00:00
7943b69002
tsan: add IsSymbolizerAvailable() function for querying for presence of internal/external symbolizer
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llvm-svn: 173783
2013-01-29 09:35:14 +00:00
5cb6c62641
tsan: symbolize global variables
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llvm-svn: 172181
2013-01-11 07:23:51 +00:00
64e25ce53d
Move C++ name demangling support from ubsan into sanitizer_common.
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llvm-svn: 170666
2012-12-20 05:00:13 +00:00
e982a1d368
tsan: describe global vars (module+offset for now)
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llvm-svn: 169122
2012-12-03 11:45:34 +00:00
68791d162a
[Sanitizer] symbolizer: increase the maximal number of shared libraries to 16K
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llvm-svn: 166098
2012-10-17 13:12:23 +00:00
3ebf2fa654
[Sanitizer] remove unused field
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llvm-svn: 163296
2012-09-06 08:47:38 +00:00
6f696f4d17
[Sanitizer] Support for reading inlined frames from llvm-symbolizer
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llvm-svn: 163140
2012-09-04 15:34:43 +00:00
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.
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llvm-svn: 162437
2012-08-23 07:32:06 +00:00
500e99639d
[Sanitizer] Wrapper around llvm::DIContext from LLVM DebugInfo library. If a macro SANITIZER_USES_LLVM_LIBS is defined (by default it is not), then sanitizer runtime includes llvm headers and tries to use LLVM libs for in-process symbolization. To make it functional, we have to link with these LLVM libs - either pass them to linker from Clang driver, or link them into static ASan runtime when we build it.
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llvm-svn: 161045
2012-07-31 11:51:26 +00:00
7acdc1738f
[Sanitizer] When obtaining the data for loaded modules, add address ranges of loadable segments only. Looks like address range of PT_TLS segment may intersect with loadable segments of other modules.
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llvm-svn: 160498
2012-07-19 07:51:20 +00:00
38b1ec4317
[ASan] Add a default constructor for DWARFSection to initialize it with zeros.
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llvm-svn: 159748
2012-07-05 14:28:37 +00:00
961276af26
[Sanitizer] Extend a symbolizer code. Implemented for Linux only. Use dl_iterate_phdr to get virtual addresses of mapped module sections. To symbolize an address from a module, map this module to memory and obtain pointers to debug info sections. Later these pointers can be passed to constructor of DWARF context-in-memory from LLVM DebugInfo lib.
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llvm-svn: 159652
2012-07-03 08:24:14 +00:00
0d76e8983f
[Sanitizer] Use ProcessMaps in symbolizer to get module name and offset for instruction address
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llvm-svn: 158522
2012-06-15 14:00:25 +00:00
5bbf8290a7
[Sanitizer] rename sanitizer_defs.h to sanitizer_internal_defs.h
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llvm-svn: 158001
2012-06-05 14:25:27 +00:00
c1971ca12f
[Sanitizer_common] fix filenames in comments
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llvm-svn: 157919
2012-06-04 09:33:06 +00:00
6f596767c3
Stub files for common symbolizer for AddressSanitizer and ThreadSanitizer tools.
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It is an analogue of addr2line utility and should allow to map instruction address to a location
in source code at run-time. It should use debug information (in DWARF) in a binary, and hopefully
it would be possible to re-use code from llvm/DebugInfo/DIContext.h
llvm-svn: 157806
2012-06-01 06:11:13 +00:00
Peter Collingbourne