folly::symbolizer::AddressFormatter Class Reference

#include <Symbolizer.h>

Public Member Functions
	AddressFormatter ()
StringPiece	format (uintptr_t address)

Private Attributes
char	buf_ [sizeof(bufTemplate)]

Static Private Attributes
static constexpr char	bufTemplate [] = " @ 0000000000000000"

Detailed Description

Format one address in the way it's usually printed by SymbolizePrinter. Async-signal-safe.

Definition at line 163 of file Symbolizer.h.

Constructor & Destructor Documentation

folly::symbolizer::AddressFormatter::AddressFormatter

(

)

Definition at line 190 of file Symbolizer.cpp.

                                   {
  memcpy(buf_, bufTemplate, sizeof(buf_));
}

Member Function Documentation

folly::StringPiece folly::symbolizer::AddressFormatter::format

(

uintptr_t

address

)

Format the address. Returns an internal buffer.

Definition at line 194 of file Symbolizer.cpp.

References folly::test::end().

Referenced by folly::symbolizer::SymbolizePrinter::print(), folly::symbolizer::SafeStackTracePrinter::printStackTrace(), and folly::symbolizer::FastStackTracePrinter::printStackTrace().

                                                           {
  // Can't use sprintf, not async-signal-safe
  static_assert(sizeof(uintptr_t) <= 8, "huge uintptr_t?");
  char* end = buf_ + sizeof(buf_) - 1 - (16 - 2 * sizeof(uintptr_t));
  char* p = end;
  *p-- = '\0';
  while (address != 0) {
    *p-- = kHexChars[address & 0xf];
    address >>= 4;
  }

  return folly::StringPiece(buf_, end);
}

Member Data Documentation

char folly::symbolizer::AddressFormatter::buf_[sizeof(bufTemplate)]

private

Definition at line 174 of file Symbolizer.h.

constexpr char folly::symbolizer::AddressFormatter::bufTemplate = " @ 0000000000000000"

staticprivate

Definition at line 173 of file Symbolizer.h.

Referenced by folly::symbolizer::Symbolizer::symbolize().

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The documentation for this class was generated from the following files:

• proxygen/folly/folly/experimental/symbolizer/Symbolizer.h
• proxygen/folly/folly/experimental/symbolizer/Symbolizer.cpp