diff options
Diffstat (limited to 'lib/sanitizer_common')
| -rw-r--r-- | lib/sanitizer_common/sanitizer_symbolizer.h | 20 |
1 files changed, 7 insertions, 13 deletions
diff --git a/lib/sanitizer_common/sanitizer_symbolizer.h b/lib/sanitizer_common/sanitizer_symbolizer.h index fb9473f3..f4191328 100644 --- a/lib/sanitizer_common/sanitizer_symbolizer.h +++ b/lib/sanitizer_common/sanitizer_symbolizer.h @@ -7,19 +7,14 @@ // //===----------------------------------------------------------------------===// // -// Symbolizer is intended to be used by both -// AddressSanitizer and ThreadSanitizer to symbolize a given -// address. It is an analogue of addr2line utility and allows to map -// instruction address to a location in source code at run-time. +// Symbolizer is used by sanitizers to map instruction address to a location in +// source code at run-time. Symbolizer either uses __sanitizer_symbolize_* +// defined in the program, or (if they are missing) tries to find and +// launch "llvm-symbolizer" commandline tool in a separate process and +// communicate with it. // -// Symbolizer is planned to use debug information (in DWARF format) -// in a binary via interface defined in "llvm/DebugInfo/DIContext.h" -// -// Symbolizer code should be called from the run-time library of -// dynamic tools, and generally should not call memory allocation -// routines or other system library functions intercepted by those tools. -// Instead, Symbolizer code should use their replacements, defined in -// "compiler-rt/lib/sanitizer_common/sanitizer_libc.h". +// Generally we should try to avoid calling system library functions during +// symbolization (and use their replacements from sanitizer_libc.h instead). //===----------------------------------------------------------------------===// #ifndef SANITIZER_SYMBOLIZER_H #define SANITIZER_SYMBOLIZER_H @@ -27,7 +22,6 @@ #include "sanitizer_allocator_internal.h" #include "sanitizer_internal_defs.h" #include "sanitizer_libc.h" -// WARNING: Do not include system headers here. See details above. namespace __sanitizer { |