consistently add \n to log and trace messages

[emaste]

Summary

Previously most messages included a newline, but a few of them were missing. Fix these and simplify by just adding the newline in the _LIBUNWIND_LOG macro itself.

Example output from unpatched libunwind, from https://lists.freebsd.org/pipermail/freebsd-ports/2016-August/104595.html:

libuwind: _unw_add_dynamic_fde: bad fde: FDE is really a CIElibuwind:
_unw_add_dynamic_fde: bad fde: FDE is really a CIElibuwind:
_unw_add_dynamic_fde: bad fde: FDE is really a CIElibuwind:

[compnerd]

Thanks!

libunwind/trunk/src/AddressSpace.hpp

#ifdef _LIBUNWIND_IS_BAREMETAL
   info.arm_section =        (uintptr_t)(&__exidx_start);
   info.arm_section_length = (uintptr_t)(&__exidx_end - &__exidx_start);
  #else
   int length = 0;
   info.arm_section = (uintptr_t) dl_unwind_find_exidx(
       (_Unwind_Ptr) targetAddr, &length);
   info.arm_section_length = (uintptr_t)length;
  #endif
-  _LIBUNWIND_TRACE_UNWINDING("findUnwindSections: section %X length %x\n",
+  _LIBUNWIND_TRACE_UNWINDING("findUnwindSections: section %X length %x",
                              info.arm_section, info.arm_section_length);
   if (info.arm_section && info.arm_section_length)
     return true;
 #elif _LIBUNWIND_SUPPORT_DWARF_UNWIND
 #if _LIBUNWIND_SUPPORT_DWARF_INDEX
   struct dl_iterate_cb_data {
     LocalAddressSpace *addressSpace;
     UnwindInfoSections *sects;

libunwind/trunk/src/CompactUnwinder.hpp

case UNWIND_X86_REG_EDI:
       registers.setEDI(addressSpace.get32(savedRegisters));
       break;
     case UNWIND_X86_REG_ESI:
       registers.setESI(addressSpace.get32(savedRegisters));
       break;
     default:
       (void)functionStart;
       _LIBUNWIND_DEBUG_LOG("bad register for EBP frame, encoding=%08X for  "
-                           "function starting at 0x%X\n",
+                           "function starting at 0x%X",
                             compactEncoding, functionStart);
       _LIBUNWIND_ABORT("invalid compact unwind encoding");
     }
     savedRegisters += 4;
     savedRegistersLocations = (savedRegistersLocations >> 3);
   }
   frameUnwind(addressSpace, registers);
   return UNW_STEP_SUCCESS;
for (uint32_t i = 0; i < regCount; ++i) {
     case UNWIND_X86_REG_ESI:
       registers.setESI(addressSpace.get32(savedRegisters));
       break;
     case UNWIND_X86_REG_EBP:
       registers.setEBP(addressSpace.get32(savedRegisters));
       break;
     default:
       _LIBUNWIND_DEBUG_LOG("bad register for frameless, encoding=%08X for "
-                           "function starting at 0x%X\n",
+                           "function starting at 0x%X",
                            encoding, functionStart);
       _LIBUNWIND_ABORT("invalid compact unwind encoding");
     }
     savedRegisters += 4;
   }
   framelessUnwind(addressSpace, savedRegisters, registers);
   return UNW_STEP_SUCCESS;
 }
case UNWIND_X86_64_REG_R14:
       registers.setR14(addressSpace.get64(savedRegisters));
       break;
     case UNWIND_X86_64_REG_R15:
       registers.setR15(addressSpace.get64(savedRegisters));
       break;
     default:
       (void)functionStart;
       _LIBUNWIND_DEBUG_LOG("bad register for RBP frame, encoding=%08X for "
-                           "function starting at 0x%llX\n",
+                           "function starting at 0x%llX",
                             compactEncoding, functionStart);
       _LIBUNWIND_ABORT("invalid compact unwind encoding");
     }
     savedRegisters += 8;
     savedRegistersLocations = (savedRegistersLocations >> 3);
   }
   frameUnwind(addressSpace, registers);
   return UNW_STEP_SUCCESS;
for (uint32_t i = 0; i < regCount; ++i) {
     case UNWIND_X86_64_REG_R15:
       registers.setR15(addressSpace.get64(savedRegisters));
       break;
     case UNWIND_X86_64_REG_RBP:
       registers.setRBP(addressSpace.get64(savedRegisters));
       break;
     default:
       _LIBUNWIND_DEBUG_LOG("bad register for frameless, encoding=%08X for "
-                           "function starting at 0x%llX\n",
+                           "function starting at 0x%llX",
                             encoding, functionStart);
       _LIBUNWIND_ABORT("invalid compact unwind encoding");
     }
     savedRegisters += 8;
   }
   framelessUnwind(addressSpace, savedRegisters, registers);
   return UNW_STEP_SUCCESS;
 }

libunwind/trunk/src/EHHeaderParser.hpp

bool EHHeaderParser<A>::decodeTableEntry(
   // Have to decode the whole FDE for the PC range anyway, so just throw away
   // the PC start.
   addressSpace.getEncodedP(tableEntry, ehHdrEnd, tableEnc, ehHdrStart);
   pint_t fde =
       addressSpace.getEncodedP(tableEntry, ehHdrEnd, tableEnc, ehHdrStart);
   const char *message =
       CFI_Parser<A>::decodeFDE(addressSpace, fde, fdeInfo, cieInfo);
   if (message != NULL) {
-    _LIBUNWIND_DEBUG_LOG("EHHeaderParser::decodeTableEntry: bad fde: %s\n",
+    _LIBUNWIND_DEBUG_LOG("EHHeaderParser::decodeTableEntry: bad fde: %s",
                          message);
     return false;
   }
 
   return true;
 }
 
 template <typename A>

libunwind/trunk/src/Unwind-EHABI.cpp

unwind_phase1(unw_context_t *uc, unw_cursor_t *cursor, _Unwind_Exception *exception_object) {
 
   // Walk each frame looking for a place to stop.
   for (bool handlerNotFound = true; handlerNotFound;) {
 
     // See if frame has code to run (has personality routine).
     unw_proc_info_t frameInfo;
     if (unw_get_proc_info(cursor, &frameInfo) != UNW_ESUCCESS) {
       _LIBUNWIND_TRACE_UNWINDING("unwind_phase1(ex_ojb=%p): unw_get_proc_info "
-                                 "failed => _URC_FATAL_PHASE1_ERROR\n",
+                                 "failed => _URC_FATAL_PHASE1_ERROR",
                                  static_cast<void *>(exception_object));
       return _URC_FATAL_PHASE1_ERROR;
     }
 
     // When tracing, print state information.
     if (_LIBUNWIND_TRACING_UNWINDING) {
       char functionBuf[512];
       const char *functionName = functionBuf;
       unw_word_t offset;
       if ((unw_get_proc_name(cursor, functionBuf, sizeof(functionBuf),
                              &offset) != UNW_ESUCCESS) ||
           (frameInfo.start_ip + offset > frameInfo.end_ip))
         functionName = ".anonymous.";
       unw_word_t pc;
       unw_get_reg(cursor, UNW_REG_IP, &pc);
       _LIBUNWIND_TRACE_UNWINDING(
           "unwind_phase1(ex_ojb=%p): pc=0x%llX, start_ip=0x%llX, func=%s, "
-          "lsda=0x%llX, personality=0x%llX\n",
+          "lsda=0x%llX, personality=0x%llX",
           static_cast<void *>(exception_object), (long long)pc,
           (long long)frameInfo.start_ip, functionName,
           (long long)frameInfo.lsda, (long long)frameInfo.handler);
     }
 
     // If there is a personality routine, ask it if it will want to stop at
     // this frame.
     if (frameInfo.handler != 0) {
       __personality_routine p =
           (__personality_routine)(long)(frameInfo.handler);
       _LIBUNWIND_TRACE_UNWINDING(
-          "unwind_phase1(ex_ojb=%p): calling personality function %p\n",
+          "unwind_phase1(ex_ojb=%p): calling personality function %p",
           static_cast<void *>(exception_object),
           reinterpret_cast<void *>(reinterpret_cast<uintptr_t>(p)));
       struct _Unwind_Context *context = (struct _Unwind_Context *)(cursor);
       exception_object->pr_cache.fnstart = frameInfo.start_ip;
       exception_object->pr_cache.ehtp =
           (_Unwind_EHT_Header *)frameInfo.unwind_info;
       exception_object->pr_cache.additional = frameInfo.flags;
       _Unwind_Reason_Code personalityResult =
           (*p)(_US_VIRTUAL_UNWIND_FRAME, exception_object, context);
       _LIBUNWIND_TRACE_UNWINDING(
           "unwind_phase1(ex_ojb=%p): personality result %d start_ip %x ehtp %p "
-          "additional %x\n",
+          "additional %x",
           static_cast<void *>(exception_object), personalityResult,
           exception_object->pr_cache.fnstart,
           static_cast<void *>(exception_object->pr_cache.ehtp),
           exception_object->pr_cache.additional);
       switch (personalityResult) {
       case _URC_HANDLER_FOUND:
         // found a catch clause or locals that need destructing in this frame
         // stop search and remember stack pointer at the frame
         handlerNotFound = false;
         // p should have initialized barrier_cache. EHABI #7.3.5
         _LIBUNWIND_TRACE_UNWINDING(
-            "unwind_phase1(ex_ojb=%p): _URC_HANDLER_FOUND \n",
+            "unwind_phase1(ex_ojb=%p): _URC_HANDLER_FOUND",
             static_cast<void *>(exception_object));
         return _URC_NO_REASON;
 
       case _URC_CONTINUE_UNWIND:
         _LIBUNWIND_TRACE_UNWINDING(
-            "unwind_phase1(ex_ojb=%p): _URC_CONTINUE_UNWIND\n",
+            "unwind_phase1(ex_ojb=%p): _URC_CONTINUE_UNWIND",
             static_cast<void *>(exception_object));
         // continue unwinding
         break;
 
       // EHABI #7.3.3
       case _URC_FAILURE:
         return _URC_FAILURE;
 
       default:
         // something went wrong
         _LIBUNWIND_TRACE_UNWINDING(
-            "unwind_phase1(ex_ojb=%p): _URC_FATAL_PHASE1_ERROR\n",
+            "unwind_phase1(ex_ojb=%p): _URC_FATAL_PHASE1_ERROR",
             static_cast<void *>(exception_object));
         return _URC_FATAL_PHASE1_ERROR;
       }
     }
   }
   return _URC_NO_REASON;
 }
 
 static _Unwind_Reason_Code unwind_phase2(unw_context_t *uc, unw_cursor_t *cursor,
                                          _Unwind_Exception *exception_object,
                                          bool resume) {
   // See comment at the start of unwind_phase1 regarding VRS integrity.
   unw_init_local(cursor, uc);
 
-  _LIBUNWIND_TRACE_UNWINDING("unwind_phase2(ex_ojb=%p)\n",
+  _LIBUNWIND_TRACE_UNWINDING("unwind_phase2(ex_ojb=%p)",
                              static_cast<void *>(exception_object));
   int frame_count = 0;
 
   // Walk each frame until we reach where search phase said to stop.
   while (true) {
     // Ask libunwind to get next frame (skip over first which is
     // _Unwind_RaiseException or _Unwind_Resume).
     //
while (true) {
     }
 
     // Get info about this frame.
     unw_word_t sp;
     unw_proc_info_t frameInfo;
     unw_get_reg(cursor, UNW_REG_SP, &sp);
     if (unw_get_proc_info(cursor, &frameInfo) != UNW_ESUCCESS) {
       _LIBUNWIND_TRACE_UNWINDING("unwind_phase2(ex_ojb=%p): unw_get_proc_info "
-                                 "failed => _URC_FATAL_PHASE2_ERROR\n",
+                                 "failed => _URC_FATAL_PHASE2_ERROR",
                                  static_cast<void *>(exception_object));
       return _URC_FATAL_PHASE2_ERROR;
     }
 
     // When tracing, print state information.
     if (_LIBUNWIND_TRACING_UNWINDING) {
       char functionBuf[512];
       const char *functionName = functionBuf;
       unw_word_t offset;
       if ((unw_get_proc_name(cursor, functionBuf, sizeof(functionBuf),
                              &offset) != UNW_ESUCCESS) ||
           (frameInfo.start_ip + offset > frameInfo.end_ip))
         functionName = ".anonymous.";
       _LIBUNWIND_TRACE_UNWINDING(
           "unwind_phase2(ex_ojb=%p): start_ip=0x%llX, func=%s, sp=0x%llX, "
-          "lsda=0x%llX, personality=0x%llX\n",
+          "lsda=0x%llX, personality=0x%llX",
           static_cast<void *>(exception_object), (long long)frameInfo.start_ip,
           functionName, (long long)sp, (long long)frameInfo.lsda,
           (long long)frameInfo.handler);
     }
 
     // If there is a personality routine, tell it we are unwinding.
     if (frameInfo.handler != 0) {
       __personality_routine p =
           (__personality_routine)(long)(frameInfo.handler);
       struct _Unwind_Context *context = (struct _Unwind_Context *)(cursor);
       // EHABI #7.2
       exception_object->pr_cache.fnstart = frameInfo.start_ip;
       exception_object->pr_cache.ehtp =
           (_Unwind_EHT_Header *)frameInfo.unwind_info;
       exception_object->pr_cache.additional = frameInfo.flags;
       _Unwind_Reason_Code personalityResult =
           (*p)(state, exception_object, context);
       switch (personalityResult) {
       case _URC_CONTINUE_UNWIND:
         // Continue unwinding
         _LIBUNWIND_TRACE_UNWINDING(
-            "unwind_phase2(ex_ojb=%p): _URC_CONTINUE_UNWIND\n",
+            "unwind_phase2(ex_ojb=%p): _URC_CONTINUE_UNWIND",
             static_cast<void *>(exception_object));
         // EHABI #7.2
         if (sp == exception_object->barrier_cache.sp) {
           // Phase 1 said we would stop at this frame, but we did not...
           _LIBUNWIND_ABORT("during phase1 personality function said it would "
                            "stop here, but now in phase2 it did not stop here");
         }
         break;
       case _URC_INSTALL_CONTEXT:
         _LIBUNWIND_TRACE_UNWINDING(
-            "unwind_phase2(ex_ojb=%p): _URC_INSTALL_CONTEXT\n",
+            "unwind_phase2(ex_ojb=%p): _URC_INSTALL_CONTEXT",
             static_cast<void *>(exception_object));
         // Personality routine says to transfer control to landing pad.
         // We may get control back if landing pad calls _Unwind_Resume().
         if (_LIBUNWIND_TRACING_UNWINDING) {
           unw_word_t pc;
           unw_get_reg(cursor, UNW_REG_IP, &pc);
           unw_get_reg(cursor, UNW_REG_SP, &sp);
           _LIBUNWIND_TRACE_UNWINDING("unwind_phase2(ex_ojb=%p): re-entering "
-                                     "user code with ip=0x%llX, sp=0x%llX\n",
+                                     "user code with ip=0x%llX, sp=0x%llX",
                                      static_cast<void *>(exception_object),
                                      (long long)pc, (long long)sp);
         }
 
         {
           // EHABI #7.4.1 says we need to preserve pc for when _Unwind_Resume
           // is called back, to find this same frame.
           unw_word_t pc;
static _Unwind_Reason_Code unwind_phase2(unw_context_t *uc, unw_cursor_t *cursor,
   // Clean up phase did not resume at the frame that the search phase
   // said it would...
   return _URC_FATAL_PHASE2_ERROR;
 }
 
 /// Called by __cxa_throw.  Only returns if there is a fatal error.
 _LIBUNWIND_EXPORT _Unwind_Reason_Code
 _Unwind_RaiseException(_Unwind_Exception *exception_object) {
-  _LIBUNWIND_TRACE_API("_Unwind_RaiseException(ex_obj=%p)\n",
+  _LIBUNWIND_TRACE_API("_Unwind_RaiseException(ex_obj=%p)",
                        static_cast<void *>(exception_object));
   unw_context_t uc;
   unw_cursor_t cursor;
   unw_getcontext(&uc);
 
   // This field for is for compatibility with GCC to say this isn't a forced
   // unwind. EHABI #7.2
   exception_object->unwinder_cache.reserved1 = 0;

 /// geneated user code.  All other _Unwind_* routines are called
 /// by the C++ runtime __cxa_* routines.
 ///
 /// Note: re-throwing an exception (as opposed to continuing the unwind)
 /// is implemented by having the code call __cxa_rethrow() which
 /// in turn calls _Unwind_Resume_or_Rethrow().
 _LIBUNWIND_EXPORT void
 _Unwind_Resume(_Unwind_Exception *exception_object) {
-  _LIBUNWIND_TRACE_API("_Unwind_Resume(ex_obj=%p)\n",
+  _LIBUNWIND_TRACE_API("_Unwind_Resume(ex_obj=%p)",
                        static_cast<void *>(exception_object));
   unw_context_t uc;
   unw_cursor_t cursor;
   unw_getcontext(&uc);
 
   // _Unwind_RaiseException on EHABI will always set the reserved1 field to 0,
   // which is in the same position as private_1 below.
   // TODO(ajwong): Who wronte the above? Why is it true?
   unwind_phase2(&uc, &cursor, exception_object, true);
 
   // Clients assume _Unwind_Resume() does not return, so all we can do is abort.
   _LIBUNWIND_ABORT("_Unwind_Resume() can't return");
 }
 
 /// Called by personality handler during phase 2 to get LSDA for current frame.
 _LIBUNWIND_EXPORT uintptr_t
 _Unwind_GetLanguageSpecificData(struct _Unwind_Context *context) {
   unw_cursor_t *cursor = (unw_cursor_t *)context;
   unw_proc_info_t frameInfo;
   uintptr_t result = 0;
   if (unw_get_proc_info(cursor, &frameInfo) == UNW_ESUCCESS)
     result = (uintptr_t)frameInfo.lsda;
   _LIBUNWIND_TRACE_API(
-      "_Unwind_GetLanguageSpecificData(context=%p) => 0x%llx\n",
+      "_Unwind_GetLanguageSpecificData(context=%p) => 0x%llx",
       static_cast<void *>(context), (long long)result);
   return result;
 }
 
 static uint64_t ValueAsBitPattern(_Unwind_VRS_DataRepresentation representation,
                                   void* valuep) {
   uint64_t value = 0;
   switch (representation) {
static uint64_t ValueAsBitPattern(_Unwind_VRS_DataRepresentation representation,
   return value;
 }
 
 _Unwind_VRS_Result
 _Unwind_VRS_Set(_Unwind_Context *context, _Unwind_VRS_RegClass regclass,
                 uint32_t regno, _Unwind_VRS_DataRepresentation representation,
                 void *valuep) {
   _LIBUNWIND_TRACE_API("_Unwind_VRS_Set(context=%p, regclass=%d, reg=%d, "
-                       "rep=%d, value=0x%llX)\n",
+                       "rep=%d, value=0x%llX)",
                        static_cast<void *>(context), regclass, regno,
                        representation,
                        ValueAsBitPattern(representation, valuep));
   unw_cursor_t *cursor = (unw_cursor_t *)context;
   switch (regclass) {
     case _UVRSC_CORE:
       if (representation != _UVRSD_UINT32 || regno > 15)
         return _UVRSR_FAILED;
_Unwind_VRS_Result _Unwind_VRS_Get(
     _Unwind_VRS_RegClass regclass,
     uint32_t regno,
     _Unwind_VRS_DataRepresentation representation,
     void *valuep) {
   _Unwind_VRS_Result result =
       _Unwind_VRS_Get_Internal(context, regclass, regno, representation,
                                valuep);
   _LIBUNWIND_TRACE_API("_Unwind_VRS_Get(context=%p, regclass=%d, reg=%d, "
-                       "rep=%d, value=0x%llX, result = %d)\n",
+                       "rep=%d, value=0x%llX, result = %d)",
                        static_cast<void *>(context), regclass, regno,
                        representation,
                        ValueAsBitPattern(representation, valuep), result);
   return result;
 }
 
 _Unwind_VRS_Result
 _Unwind_VRS_Pop(_Unwind_Context *context, _Unwind_VRS_RegClass regclass,
                 uint32_t discriminator,
                 _Unwind_VRS_DataRepresentation representation) {
   _LIBUNWIND_TRACE_API("_Unwind_VRS_Pop(context=%p, regclass=%d, "
-                       "discriminator=%d, representation=%d)\n",
+                       "discriminator=%d, representation=%d)",
                        static_cast<void *>(context), regclass, discriminator,
                        representation);
   switch (regclass) {
     case _UVRSC_WMMXC:
 #if !defined(__ARM_WMMX)
       break;
 #endif
     case _UVRSC_CORE: {

 /// function.
 _LIBUNWIND_EXPORT uintptr_t
 _Unwind_GetRegionStart(struct _Unwind_Context *context) {
   unw_cursor_t *cursor = (unw_cursor_t *)context;
   unw_proc_info_t frameInfo;
   uintptr_t result = 0;
   if (unw_get_proc_info(cursor, &frameInfo) == UNW_ESUCCESS)
     result = (uintptr_t)frameInfo.start_ip;
-  _LIBUNWIND_TRACE_API("_Unwind_GetRegionStart(context=%p) => 0x%llX\n",
+  _LIBUNWIND_TRACE_API("_Unwind_GetRegionStart(context=%p) => 0x%llX",
                        static_cast<void *>(context), (long long)result);
   return result;
 }
 
 
 /// Called by personality handler during phase 2 if a foreign exception
 // is caught.
 _LIBUNWIND_EXPORT void
 _Unwind_DeleteException(_Unwind_Exception *exception_object) {
-  _LIBUNWIND_TRACE_API("_Unwind_DeleteException(ex_obj=%p)\n",
+  _LIBUNWIND_TRACE_API("_Unwind_DeleteException(ex_obj=%p)",
                        static_cast<void *>(exception_object));
   if (exception_object->exception_cleanup != NULL)
     (*exception_object->exception_cleanup)(_URC_FOREIGN_EXCEPTION_CAUGHT,
                                            exception_object);
 }
 
 extern "C" _LIBUNWIND_EXPORT _Unwind_Reason_Code
 __gnu_unwind_frame(_Unwind_Exception *exception_object,
                    struct _Unwind_Context *context) {
   unw_cursor_t *cursor = (unw_cursor_t *)context;
   if (unw_step(cursor) != UNW_STEP_SUCCESS)
     return _URC_FAILURE;
   return _URC_OK;
 }
 
 #endif  // _LIBUNWIND_ARM_EHABI

libunwind/trunk/src/Unwind-sjlj.c

 _Unwind_SjLj_Unregister(struct _Unwind_FunctionContext *fc) {
   __Unwind_SjLj_SetTopOfFunctionStack(fc->prev);
 }
 
 
 static _Unwind_Reason_Code
 unwind_phase1(struct _Unwind_Exception *exception_object) {
   _Unwind_FunctionContext_t c = __Unwind_SjLj_GetTopOfFunctionStack();
-  _LIBUNWIND_TRACE_UNWINDING("unwind_phase1: initial function-context=%p\n", c);
+  _LIBUNWIND_TRACE_UNWINDING("unwind_phase1: initial function-context=%p", c);
 
   // walk each frame looking for a place to stop
   for (bool handlerNotFound = true; handlerNotFound; c = c->prev) {
 
     // check for no more frames
     if (c == NULL) {
       _LIBUNWIND_TRACE_UNWINDING("unwind_phase1(ex_ojb=%p): reached "
-                                 "bottom => _URC_END_OF_STACK\n",
+                                 "bottom => _URC_END_OF_STACK",
                                   exception_object);
       return _URC_END_OF_STACK;
     }
 
-    _LIBUNWIND_TRACE_UNWINDING("unwind_phase1: function-context=%p\n", c);
+    _LIBUNWIND_TRACE_UNWINDING("unwind_phase1: function-context=%p", c);
     // if there is a personality routine, ask it if it will want to stop at this
     // frame
     if (c->personality != NULL) {
       _LIBUNWIND_TRACE_UNWINDING("unwind_phase1(ex_ojb=%p): calling "
-                                "personality function %p\n",
+                                "personality function %p",
                                  exception_object, c->personality);
       _Unwind_Reason_Code personalityResult = (*c->personality)(
           1, _UA_SEARCH_PHASE, exception_object->exception_class,
           exception_object, (struct _Unwind_Context *)c);
       switch (personalityResult) {
       case _URC_HANDLER_FOUND:
         // found a catch clause or locals that need destructing in this frame
         // stop search and remember function context
         handlerNotFound = false;
         exception_object->private_2 = (uintptr_t) c;
         _LIBUNWIND_TRACE_UNWINDING("unwind_phase1(ex_ojb=%p): "
-                                   "_URC_HANDLER_FOUND\n", exception_object);
+                                   "_URC_HANDLER_FOUND", exception_object);
         return _URC_NO_REASON;
 
       case _URC_CONTINUE_UNWIND:
         _LIBUNWIND_TRACE_UNWINDING("unwind_phase1(ex_ojb=%p): "
-                                   "_URC_CONTINUE_UNWIND\n", exception_object);
+                                   "_URC_CONTINUE_UNWIND", exception_object);
         // continue unwinding
         break;
 
       default:
         // something went wrong
         _LIBUNWIND_TRACE_UNWINDING(
-            "unwind_phase1(ex_ojb=%p): _URC_FATAL_PHASE1_ERROR\n",
+            "unwind_phase1(ex_ojb=%p): _URC_FATAL_PHASE1_ERROR",
             exception_object);
         return _URC_FATAL_PHASE1_ERROR;
       }
     }
   }
   return _URC_NO_REASON;
 }
 
 
 static _Unwind_Reason_Code
 unwind_phase2(struct _Unwind_Exception *exception_object) {
-  _LIBUNWIND_TRACE_UNWINDING("unwind_phase2(ex_ojb=%p)\n", exception_object);
+  _LIBUNWIND_TRACE_UNWINDING("unwind_phase2(ex_ojb=%p)", exception_object);
 
   // walk each frame until we reach where search phase said to stop
   _Unwind_FunctionContext_t c = __Unwind_SjLj_GetTopOfFunctionStack();
   while (true) {
-    _LIBUNWIND_TRACE_UNWINDING("unwind_phase2s(ex_ojb=%p): context=%p\n",
+    _LIBUNWIND_TRACE_UNWINDING("unwind_phase2s(ex_ojb=%p): context=%p",
                               exception_object, c);
 
     // check for no more frames
     if (c == NULL) {
       _LIBUNWIND_TRACE_UNWINDING("unwind_phase2(ex_ojb=%p): unw_step() reached "
-                                "bottom => _URC_END_OF_STACK\n",
+                                "bottom => _URC_END_OF_STACK",
                                  exception_object);
       return _URC_END_OF_STACK;
     }
 
     // if there is a personality routine, tell it we are unwinding
     if (c->personality != NULL) {
       _Unwind_Action action = _UA_CLEANUP_PHASE;
       if ((uintptr_t) c == exception_object->private_2)
         action = (_Unwind_Action)(
             _UA_CLEANUP_PHASE |
             _UA_HANDLER_FRAME); // tell personality this was the frame it marked
                                 // in phase 1
       _Unwind_Reason_Code personalityResult =
           (*c->personality)(1, action, exception_object->exception_class,
                             exception_object, (struct _Unwind_Context *)c);
       switch (personalityResult) {
       case _URC_CONTINUE_UNWIND:
         // continue unwinding
         _LIBUNWIND_TRACE_UNWINDING(
-            "unwind_phase2(ex_ojb=%p): _URC_CONTINUE_UNWIND\n",
+            "unwind_phase2(ex_ojb=%p): _URC_CONTINUE_UNWIND",
             exception_object);
         if ((uintptr_t) c == exception_object->private_2) {
           // phase 1 said we would stop at this frame, but we did not...
           _LIBUNWIND_ABORT("during phase1 personality function said it would "
                            "stop here, but now if phase2 it did not stop here");
         }
         break;
       case _URC_INSTALL_CONTEXT:
         _LIBUNWIND_TRACE_UNWINDING("unwind_phase2(ex_ojb=%p): "
                                   "_URC_INSTALL_CONTEXT, will resume at "
-                                  "landing pad %p\n",
+                                  "landing pad %p",
                                   exception_object, c->jbuf[1]);
         // personality routine says to transfer control to landing pad
         // we may get control back if landing pad calls _Unwind_Resume()
         __Unwind_SjLj_SetTopOfFunctionStack(c);
         __builtin_longjmp(c->jbuf, 1);
         // unw_resume() only returns if there was an error
         return _URC_FATAL_PHASE2_ERROR;
       default:
unwind_phase2_forced(struct _Unwind_Exception *exception_object,
                      _Unwind_Stop_Fn stop, void *stop_parameter) {
   // walk each frame until we reach where search phase said to stop
   _Unwind_FunctionContext_t c = __Unwind_SjLj_GetTopOfFunctionStack();
   while (true) {
 
     // get next frame (skip over first which is _Unwind_RaiseException)
     if (c == NULL) {
       _LIBUNWIND_TRACE_UNWINDING("unwind_phase2(ex_ojb=%p): unw_step() reached "
-                                 "bottom => _URC_END_OF_STACK\n",
+                                 "bottom => _URC_END_OF_STACK",
                                  exception_object);
       return _URC_END_OF_STACK;
     }
 
     // call stop function at each frame
     _Unwind_Action action =
         (_Unwind_Action)(_UA_FORCE_UNWIND | _UA_CLEANUP_PHASE);
     _Unwind_Reason_Code stopResult =
         (*stop)(1, action, exception_object->exception_class, exception_object,
                 (struct _Unwind_Context *)c, stop_parameter);
     _LIBUNWIND_TRACE_UNWINDING("unwind_phase2_forced(ex_ojb=%p): "
-                               "stop function returned %d\n",
+                               "stop function returned %d",
                                 exception_object, stopResult);
     if (stopResult != _URC_NO_REASON) {
       _LIBUNWIND_TRACE_UNWINDING("unwind_phase2_forced(ex_ojb=%p): "
-                                 "stopped by stop function\n",
+                                 "stopped by stop function",
                                   exception_object);
       return _URC_FATAL_PHASE2_ERROR;
     }
 
     // if there is a personality routine, tell it we are unwinding
     if (c->personality != NULL) {
       __personality_routine p = (__personality_routine) c->personality;
       _LIBUNWIND_TRACE_UNWINDING("unwind_phase2_forced(ex_ojb=%p): "
-                                 "calling personality function %p\n",
+                                 "calling personality function %p",
                                   exception_object, p);
       _Unwind_Reason_Code personalityResult =
           (*p)(1, action, exception_object->exception_class, exception_object,
                (struct _Unwind_Context *)c);
       switch (personalityResult) {
       case _URC_CONTINUE_UNWIND:
         _LIBUNWIND_TRACE_UNWINDING("unwind_phase2_forced(ex_ojb=%p):  "
-                                   "personality returned _URC_CONTINUE_UNWIND\n",
+                                   "personality returned _URC_CONTINUE_UNWIND",
                                     exception_object);
         // destructors called, continue unwinding
         break;
       case _URC_INSTALL_CONTEXT:
         _LIBUNWIND_TRACE_UNWINDING("unwind_phase2_forced(ex_ojb=%p): "
-                                   "personality returned _URC_INSTALL_CONTEXT\n",
+                                   "personality returned _URC_INSTALL_CONTEXT",
                                     exception_object);
         // we may get control back if landing pad calls _Unwind_Resume()
         __Unwind_SjLj_SetTopOfFunctionStack(c);
         __builtin_longjmp(c->jbuf, 1);
         break;
       default:
         // something went wrong
         _LIBUNWIND_TRACE_UNWINDING("unwind_phase2_forced(ex_ojb=%p): "
                                    "personality returned %d, "
-                                   "_URC_FATAL_PHASE2_ERROR\n",
+                                   "_URC_FATAL_PHASE2_ERROR",
                                     exception_object, personalityResult);
         return _URC_FATAL_PHASE2_ERROR;
       }
     }
     c = c->prev;
   }
 
   // call stop function one last time and tell it we've reached the end of the
   // stack
   _LIBUNWIND_TRACE_UNWINDING("unwind_phase2_forced(ex_ojb=%p): calling stop "
-                        "function with _UA_END_OF_STACK\n",
+                        "function with _UA_END_OF_STACK",
                         exception_object);
   _Unwind_Action lastAction =
       (_Unwind_Action)(_UA_FORCE_UNWIND | _UA_CLEANUP_PHASE | _UA_END_OF_STACK);
   (*stop)(1, lastAction, exception_object->exception_class, exception_object,
           (struct _Unwind_Context *)c, stop_parameter);
 
   // clean up phase did not resume at the frame that the search phase said it
   // would
   return _URC_FATAL_PHASE2_ERROR;
 }
 
 
 /// Called by __cxa_throw.  Only returns if there is a fatal error
 _LIBUNWIND_EXPORT _Unwind_Reason_Code
 _Unwind_SjLj_RaiseException(struct _Unwind_Exception *exception_object) {
-  _LIBUNWIND_TRACE_API("_Unwind_SjLj_RaiseException(ex_obj=%p)\n", exception_object);
+  _LIBUNWIND_TRACE_API("_Unwind_SjLj_RaiseException(ex_obj=%p)", exception_object);
 
   // mark that this is a non-forced unwind, so _Unwind_Resume() can do the right
   // thing
   exception_object->private_1 = 0;
   exception_object->private_2 = 0;
 
   // phase 1: the search phase
   _Unwind_Reason_Code phase1 = unwind_phase1(exception_object);

 /// unwinding.  Note: the call to _Unwind_Resume() is from compiler
 /// geneated user code.  All other _Unwind_* routines are called
 /// by the C++ runtime __cxa_* routines.
 ///
 /// Re-throwing an exception is implemented by having the code call
 /// __cxa_rethrow() which in turn calls _Unwind_Resume_or_Rethrow()
 _LIBUNWIND_EXPORT void
 _Unwind_SjLj_Resume(struct _Unwind_Exception *exception_object) {
-  _LIBUNWIND_TRACE_API("_Unwind_SjLj_Resume(ex_obj=%p)\n", exception_object);
+  _LIBUNWIND_TRACE_API("_Unwind_SjLj_Resume(ex_obj=%p)", exception_object);
 
   if (exception_object->private_1 != 0)
     unwind_phase2_forced(exception_object,
                          (_Unwind_Stop_Fn) exception_object->private_1,
                          (void *)exception_object->private_2);
   else
     unwind_phase2(exception_object);
 
   // clients assume _Unwind_Resume() does not return, so all we can do is abort.
   _LIBUNWIND_ABORT("_Unwind_SjLj_Resume() can't return");
 }
 
 
 ///  Called by __cxa_rethrow().
 _LIBUNWIND_EXPORT _Unwind_Reason_Code
 _Unwind_SjLj_Resume_or_Rethrow(struct _Unwind_Exception *exception_object) {
   _LIBUNWIND_TRACE_API("__Unwind_SjLj_Resume_or_Rethrow(ex_obj=%p), "
-                             "private_1=%ld\n",
+                             "private_1=%ld",
                               exception_object, exception_object->private_1);
   // If this is non-forced and a stopping place was found, then this is a
   // re-throw.
   // Call _Unwind_RaiseException() as if this was a new exception.
   if (exception_object->private_1 == 0) {
     return _Unwind_SjLj_RaiseException(exception_object);
     // should return if there is no catch clause, so that __cxa_rethrow can call
     // std::terminate()
   }
 
   // Call through to _Unwind_Resume() which distiguishes between forced and
   // regular exceptions.
   _Unwind_SjLj_Resume(exception_object);
   _LIBUNWIND_ABORT("__Unwind_SjLj_Resume_or_Rethrow() called "
                     "_Unwind_SjLj_Resume() which unexpectedly returned");
 }
 
 
 /// Called by personality handler during phase 2 to get LSDA for current frame.
 _LIBUNWIND_EXPORT uintptr_t
 _Unwind_GetLanguageSpecificData(struct _Unwind_Context *context) {
   _Unwind_FunctionContext_t ufc = (_Unwind_FunctionContext_t) context;
   _LIBUNWIND_TRACE_API("_Unwind_GetLanguageSpecificData(context=%p) "
-                             "=> 0x%0lX\n",  context, ufc->lsda);
+                             "=> 0x%0lX",  context, ufc->lsda);
   return ufc->lsda;
 }
 
 
 /// Called by personality handler during phase 2 to get register values.
 _LIBUNWIND_EXPORT uintptr_t _Unwind_GetGR(struct _Unwind_Context *context,
                                           int index) {
-  _LIBUNWIND_TRACE_API("_Unwind_GetGR(context=%p, reg=%d)\n",
+  _LIBUNWIND_TRACE_API("_Unwind_GetGR(context=%p, reg=%d)",
                              context, index);
   _Unwind_FunctionContext_t ufc = (_Unwind_FunctionContext_t) context;
   return ufc->resumeParameters[index];
 }
 
 
 /// Called by personality handler during phase 2 to alter register values.
 _LIBUNWIND_EXPORT void _Unwind_SetGR(struct _Unwind_Context *context, int index,
                                      uintptr_t new_value) {
-  _LIBUNWIND_TRACE_API("_Unwind_SetGR(context=%p, reg=%d, value=0x%0lX)\n"
+  _LIBUNWIND_TRACE_API("_Unwind_SetGR(context=%p, reg=%d, value=0x%0lX)"
                             , context, index, new_value);
   _Unwind_FunctionContext_t ufc = (_Unwind_FunctionContext_t) context;
   ufc->resumeParameters[index] = new_value;
 }
 
 
 /// Called by personality handler during phase 2 to get instruction pointer.
 _LIBUNWIND_EXPORT uintptr_t _Unwind_GetIP(struct _Unwind_Context *context) {
   _Unwind_FunctionContext_t ufc = (_Unwind_FunctionContext_t) context;
-  _LIBUNWIND_TRACE_API("_Unwind_GetIP(context=%p) => 0x%lX\n", context,
+  _LIBUNWIND_TRACE_API("_Unwind_GetIP(context=%p) => 0x%lX", context,
                   ufc->resumeLocation + 1);
   return ufc->resumeLocation + 1;
 }
 
 
 /// Called by personality handler during phase 2 to get instruction pointer.
 /// ipBefore is a boolean that says if IP is already adjusted to be the call
 /// site address.  Normally IP is the return address.
 _LIBUNWIND_EXPORT uintptr_t _Unwind_GetIPInfo(struct _Unwind_Context *context,
                                               int *ipBefore) {
   _Unwind_FunctionContext_t ufc = (_Unwind_FunctionContext_t) context;
   *ipBefore = 0;
-  _LIBUNWIND_TRACE_API("_Unwind_GetIPInfo(context=%p, %p) => 0x%lX\n",
+  _LIBUNWIND_TRACE_API("_Unwind_GetIPInfo(context=%p, %p) => 0x%lX",
                              context, ipBefore, ufc->resumeLocation + 1);
   return ufc->resumeLocation + 1;
 }
 
 
 /// Called by personality handler during phase 2 to alter instruction pointer.
 _LIBUNWIND_EXPORT void _Unwind_SetIP(struct _Unwind_Context *context,
                                      uintptr_t new_value) {
-  _LIBUNWIND_TRACE_API("_Unwind_SetIP(context=%p, value=0x%0lX)\n",
+  _LIBUNWIND_TRACE_API("_Unwind_SetIP(context=%p, value=0x%0lX)",
                              context, new_value);
   _Unwind_FunctionContext_t ufc = (_Unwind_FunctionContext_t) context;
   ufc->resumeLocation = new_value - 1;
 }
 
 
 /// Called by personality handler during phase 2 to find the start of the
 /// function.
 _LIBUNWIND_EXPORT uintptr_t
 _Unwind_GetRegionStart(struct _Unwind_Context *context) {
   // Not supported or needed for sjlj based unwinding
   (void)context;
-  _LIBUNWIND_TRACE_API("_Unwind_GetRegionStart(context=%p)\n", context);
+  _LIBUNWIND_TRACE_API("_Unwind_GetRegionStart(context=%p)", context);
   return 0;
 }
 
 
 /// Called by personality handler during phase 2 if a foreign exception
 /// is caught.
 _LIBUNWIND_EXPORT void
 _Unwind_DeleteException(struct _Unwind_Exception *exception_object) {
-  _LIBUNWIND_TRACE_API("_Unwind_DeleteException(ex_obj=%p)\n",
+  _LIBUNWIND_TRACE_API("_Unwind_DeleteException(ex_obj=%p)",
                               exception_object);
   if (exception_object->exception_cleanup != NULL)
     (*exception_object->exception_cleanup)(_URC_FOREIGN_EXCEPTION_CAUGHT,
                                            exception_object);
 }
 
 
 
 /// Called by personality handler during phase 2 to get base address for data
 /// relative encodings.
 _LIBUNWIND_EXPORT uintptr_t
 _Unwind_GetDataRelBase(struct _Unwind_Context *context) {
   // Not supported or needed for sjlj based unwinding
   (void)context;
-  _LIBUNWIND_TRACE_API("_Unwind_GetDataRelBase(context=%p)\n", context);
+  _LIBUNWIND_TRACE_API("_Unwind_GetDataRelBase(context=%p)", context);
   _LIBUNWIND_ABORT("_Unwind_GetDataRelBase() not implemented");
 }
 
 
 /// Called by personality handler during phase 2 to get base address for text
 /// relative encodings.
 _LIBUNWIND_EXPORT uintptr_t
 _Unwind_GetTextRelBase(struct _Unwind_Context *context) {
   // Not supported or needed for sjlj based unwinding
   (void)context;
-  _LIBUNWIND_TRACE_API("_Unwind_GetTextRelBase(context=%p)\n", context);
+  _LIBUNWIND_TRACE_API("_Unwind_GetTextRelBase(context=%p)", context);
   _LIBUNWIND_ABORT("_Unwind_GetTextRelBase() not implemented");
 }
 
 
 /// Called by personality handler to get "Call Frame Area" for current frame.
 _LIBUNWIND_EXPORT uintptr_t _Unwind_GetCFA(struct _Unwind_Context *context) {
-  _LIBUNWIND_TRACE_API("_Unwind_GetCFA(context=%p)\n", context);
+  _LIBUNWIND_TRACE_API("_Unwind_GetCFA(context=%p)", context);
   if (context != NULL) {
     _Unwind_FunctionContext_t ufc = (_Unwind_FunctionContext_t) context;
     // Setjmp/longjmp based exceptions don't have a true CFA.
     // Instead, the SP in the jmpbuf is the closest approximation.
     return (uintptr_t) ufc->jbuf[2];
   }
   return 0;
 }
 
 #endif // _LIBUNWIND_BUILD_SJLJ_APIS

libunwind/trunk/src/UnwindCursor.hpp

#if _LIBUNWIND_SUPPORT_DWARF_INDEX
         if (sects.dwarf_index_section == 0)
   #endif
         DwarfFDECache<A>::add(sects.dso_base, fdeInfo.pcStart, fdeInfo.pcEnd,
                               fdeInfo.fdeStart);
       }
       return true;
     }
   }
-  //_LIBUNWIND_DEBUG_LOG("can't find/use FDE for pc=0x%llX\n", (uint64_t)pc);
+  //_LIBUNWIND_DEBUG_LOG("can't find/use FDE for pc=0x%llX", (uint64_t)pc);
   return false;
 }
 #endif // _LIBUNWIND_SUPPORT_DWARF_UNWIND
 
 
 #if _LIBUNWIND_SUPPORT_COMPACT_UNWIND
 template <typename A, typename R>
 bool UnwindCursor<A, R>::getInfoFromCompactEncodingSection(pint_t pc,
if (pageKind == UNWIND_SECOND_LEVEL_REGULAR) {
     if (low < last)
       funcEnd =
           pageIndex.functionOffset(low + 1) + firstLevelFunctionOffset
                                                               + sects.dso_base;
     else
       funcEnd = firstLevelNextPageFunctionOffset + sects.dso_base;
     if (pc < funcStart) {
       _LIBUNWIND_DEBUG_LOG("malformed __unwind_info, pc=0x%llX not in second  "
-                           "level compressed unwind table. funcStart=0x%llX\n",
+                           "level compressed unwind table. funcStart=0x%llX",
                             (uint64_t) pc, (uint64_t) funcStart);
       return false;
     }
     if (pc > funcEnd) {
       _LIBUNWIND_DEBUG_LOG("malformed __unwind_info, pc=0x%llX not in second  "
-                          "level compressed unwind table. funcEnd=0x%llX\n",
+                          "level compressed unwind table. funcEnd=0x%llX",
                            (uint64_t) pc, (uint64_t) funcEnd);
       return false;
     }
     uint16_t encodingIndex = pageIndex.encodingIndex(low);
     if (encodingIndex < sectionHeader.commonEncodingsArrayCount()) {
       // encoding is in common table in section header
       encoding = _addressSpace.get32(
           sects.compact_unwind_section +
           sectionHeader.commonEncodingsArraySectionOffset() +
           encodingIndex * sizeof(uint32_t));
     } else {
       // encoding is in page specific table
       uint16_t pageEncodingIndex =
           encodingIndex - (uint16_t)sectionHeader.commonEncodingsArrayCount();
       encoding = _addressSpace.get32(secondLevelAddr +
                                      pageHeader.encodingsPageOffset() +
                                      pageEncodingIndex * sizeof(uint32_t));
     }
   } else {
     _LIBUNWIND_DEBUG_LOG("malformed __unwind_info at 0x%0llX bad second "
-                         "level page\n",
+                         "level page",
                           (uint64_t) sects.compact_unwind_section);
     return false;
   }
 
   // look up LSDA, if encoding says function has one
   if (encoding & UNWIND_HAS_LSDA) {
     UnwindSectionLsdaArray<A> lsdaIndex(_addressSpace, lsdaArrayStartAddr);
     uint32_t funcStartOffset = (uint32_t)(funcStart - sects.dso_base);
while (low < high) {
       } else if (lsdaIndex.functionOffset(mid) < funcStartOffset) {
         low = mid + 1;
       } else {
         high = mid;
       }
     }
     if (lsda == 0) {
       _LIBUNWIND_DEBUG_LOG("found encoding 0x%08X with HAS_LSDA bit set for "
-                    "pc=0x%0llX, but lsda table has no entry\n",
+                    "pc=0x%0llX, but lsda table has no entry",
                     encoding, (uint64_t) pc);
       return false;
     }
   }
 
   // extact personality routine, if encoding says function has one
   uint32_t personalityIndex = (encoding & UNWIND_PERSONALITY_MASK) >>
                               (__builtin_ctz(UNWIND_PERSONALITY_MASK));
   if (personalityIndex != 0) {
     --personalityIndex; // change 1-based to zero-based index
     if (personalityIndex > sectionHeader.personalityArrayCount()) {
       _LIBUNWIND_DEBUG_LOG("found encoding 0x%08X with personality index %d,  "
-                            "but personality table has only %d entires\n",
+                            "but personality table has only %d entires",
                             encoding, personalityIndex,
                             sectionHeader.personalityArrayCount());
       return false;
     }
     int32_t personalityDelta = (int32_t)_addressSpace.get32(
         sects.compact_unwind_section +
         sectionHeader.personalityArraySectionOffset() +
         personalityIndex * sizeof(uint32_t));

libunwind/trunk/src/UnwindLevel1-gcc-ext.c

 #include "unwind.h"
 
 #if _LIBUNWIND_BUILD_ZERO_COST_APIS
 
 ///  Called by __cxa_rethrow().
 _LIBUNWIND_EXPORT _Unwind_Reason_Code
 _Unwind_Resume_or_Rethrow(_Unwind_Exception *exception_object) {
 #if _LIBUNWIND_ARM_EHABI
-  _LIBUNWIND_TRACE_API("_Unwind_Resume_or_Rethrow(ex_obj=%p), private_1=%ld\n",
+  _LIBUNWIND_TRACE_API("_Unwind_Resume_or_Rethrow(ex_obj=%p), private_1=%ld",
                        (void *)exception_object,
                        (long)exception_object->unwinder_cache.reserved1);
 #else
-  _LIBUNWIND_TRACE_API("_Unwind_Resume_or_Rethrow(ex_obj=%p), private_1=%ld\n",
+  _LIBUNWIND_TRACE_API("_Unwind_Resume_or_Rethrow(ex_obj=%p), private_1=%ld",
                        (void *)exception_object,
                        (long)exception_object->private_1);
 #endif
 
 #if _LIBUNWIND_ARM_EHABI
   // _Unwind_RaiseException on EHABI will always set the reserved1 field to 0,
   // which is in the same position as private_1 below.
   return _Unwind_RaiseException(exception_object);

 }
 
 
 /// Called by personality handler during phase 2 to get base address for data
 /// relative encodings.
 _LIBUNWIND_EXPORT uintptr_t
 _Unwind_GetDataRelBase(struct _Unwind_Context *context) {
   (void)context;
-  _LIBUNWIND_TRACE_API("_Unwind_GetDataRelBase(context=%p)\n", (void *)context);
+  _LIBUNWIND_TRACE_API("_Unwind_GetDataRelBase(context=%p)", (void *)context);
   _LIBUNWIND_ABORT("_Unwind_GetDataRelBase() not implemented");
 }
 
 
 /// Called by personality handler during phase 2 to get base address for text
 /// relative encodings.
 _LIBUNWIND_EXPORT uintptr_t
 _Unwind_GetTextRelBase(struct _Unwind_Context *context) {
   (void)context;
-  _LIBUNWIND_TRACE_API("_Unwind_GetTextRelBase(context=%p)\n", (void *)context);
+  _LIBUNWIND_TRACE_API("_Unwind_GetTextRelBase(context=%p)", (void *)context);
   _LIBUNWIND_ABORT("_Unwind_GetTextRelBase() not implemented");
 }
 
 
 /// Scans unwind information to find the function that contains the
 /// specified code address "pc".
 _LIBUNWIND_EXPORT void *_Unwind_FindEnclosingFunction(void *pc) {
-  _LIBUNWIND_TRACE_API("_Unwind_FindEnclosingFunction(pc=%p)\n", pc);
+  _LIBUNWIND_TRACE_API("_Unwind_FindEnclosingFunction(pc=%p)", pc);
   // This is slow, but works.
   // We create an unwind cursor then alter the IP to be pc
   unw_cursor_t cursor;
   unw_context_t uc;
   unw_proc_info_t info;
   unw_getcontext(&uc);
   unw_init_local(&cursor, &uc);
   unw_set_reg(&cursor, UNW_REG_IP, (unw_word_t)(long) pc);
   if (unw_get_proc_info(&cursor, &info) == UNW_ESUCCESS)
     return (void *)(long) info.start_ip;
   else
     return NULL;
 }
 
 /// Walk every frame and call trace function at each one.  If trace function
 /// returns anything other than _URC_NO_REASON, then walk is terminated.
 _LIBUNWIND_EXPORT _Unwind_Reason_Code
 _Unwind_Backtrace(_Unwind_Trace_Fn callback, void *ref) {
   unw_cursor_t cursor;
   unw_context_t uc;
   unw_getcontext(&uc);
   unw_init_local(&cursor, &uc);
 
-  _LIBUNWIND_TRACE_API("_Unwind_Backtrace(callback=%p)\n",
+  _LIBUNWIND_TRACE_API("_Unwind_Backtrace(callback=%p)",
                        (void *)(uintptr_t)callback);
 
 #if _LIBUNWIND_ARM_EHABI
   // Create a mock exception object for force unwinding.
   _Unwind_Exception ex;
   memset(&ex, '\0', sizeof(ex));
   ex.exception_class = 0x434C4E47554E5700; // CLNGUNW\0
 #endif
 
   // walk each frame
   while (true) {
     _Unwind_Reason_Code result;
 
 #if !_LIBUNWIND_ARM_EHABI
     // ask libunwind to get next frame (skip over first frame which is
     // _Unwind_Backtrace())
     if (unw_step(&cursor) <= 0) {
       _LIBUNWIND_TRACE_UNWINDING(" _backtrace: ended because cursor reached "
-                                 "bottom of stack, returning %d\n",
+                                 "bottom of stack, returning %d",
                                  _URC_END_OF_STACK);
       return _URC_END_OF_STACK;
     }
 #else
     // Get the information for this frame.
     unw_proc_info_t frameInfo;
     if (unw_get_proc_info(&cursor, &frameInfo) != UNW_ESUCCESS) {
       return _URC_END_OF_STACK;
#endif // _LIBUNWIND_ARM_EHABI
     // debugging
     if (_LIBUNWIND_TRACING_UNWINDING) {
       char functionName[512];
       unw_proc_info_t frame;
       unw_word_t offset;
       unw_get_proc_name(&cursor, functionName, 512, &offset);
       unw_get_proc_info(&cursor, &frame);
       _LIBUNWIND_TRACE_UNWINDING(
-          " _backtrace: start_ip=0x%llX, func=%s, lsda=0x%llX, context=%p\n",
+          " _backtrace: start_ip=0x%llX, func=%s, lsda=0x%llX, context=%p",
           (long long)frame.start_ip, functionName, (long long)frame.lsda,
           (void *)&cursor);
     }
 
     // call trace function with this frame
     result = (*callback)((struct _Unwind_Context *)(&cursor), ref);
     if (result != _URC_NO_REASON) {
       _LIBUNWIND_TRACE_UNWINDING(
-          " _backtrace: ended because callback returned %d\n", result);
+          " _backtrace: ended because callback returned %d", result);
       return result;
     }
   }
 }
 
 
 /// Find DWARF unwind info for an address 'pc' in some function.
 _LIBUNWIND_EXPORT const void *_Unwind_Find_FDE(const void *pc,
                                                struct dwarf_eh_bases *bases) {
   // This is slow, but works.
   // We create an unwind cursor then alter the IP to be pc
   unw_cursor_t cursor;
   unw_context_t uc;
   unw_proc_info_t info;
   unw_getcontext(&uc);
   unw_init_local(&cursor, &uc);
   unw_set_reg(&cursor, UNW_REG_IP, (unw_word_t)(long) pc);
   unw_get_proc_info(&cursor, &info);
   bases->tbase = (uintptr_t)info.extra;
   bases->dbase = 0; // dbase not used on Mac OS X
   bases->func = (uintptr_t)info.start_ip;
-  _LIBUNWIND_TRACE_API("_Unwind_Find_FDE(pc=%p) => %p\n", pc,
+  _LIBUNWIND_TRACE_API("_Unwind_Find_FDE(pc=%p) => %p", pc,
                   (void *)(long) info.unwind_info);
   return (void *)(long) info.unwind_info;
 }
 
 /// Returns the CFA (call frame area, or stack pointer at start of function)
 /// for the current context.
 _LIBUNWIND_EXPORT uintptr_t _Unwind_GetCFA(struct _Unwind_Context *context) {
   unw_cursor_t *cursor = (unw_cursor_t *)context;
   unw_word_t result;
   unw_get_reg(cursor, UNW_REG_SP, &result);
-  _LIBUNWIND_TRACE_API("_Unwind_GetCFA(context=%p) => 0x%" PRIx64 "\n",
+  _LIBUNWIND_TRACE_API("_Unwind_GetCFA(context=%p) => 0x%" PRIx64,
                        (void *)context, (uint64_t)result);
   return (uintptr_t)result;
 }
 
 
 /// Called by personality handler during phase 2 to get instruction pointer.
 /// ipBefore is a boolean that says if IP is already adjusted to be the call
 /// site address.  Normally IP is the return address.
 _LIBUNWIND_EXPORT uintptr_t _Unwind_GetIPInfo(struct _Unwind_Context *context,
                                               int *ipBefore) {
-  _LIBUNWIND_TRACE_API("_Unwind_GetIPInfo(context=%p)\n", (void *)context);
+  _LIBUNWIND_TRACE_API("_Unwind_GetIPInfo(context=%p)", (void *)context);
   *ipBefore = 0;
   return _Unwind_GetIP(context);
 }
 
 #if _LIBUNWIND_SUPPORT_DWARF_UNWIND
 
 /// Called by programs with dynamic code generators that want
 /// to register a dynamically generated FDE.
 /// This function has existed on Mac OS X since 10.4, but
 /// was broken until 10.6.
 _LIBUNWIND_EXPORT void __register_frame(const void *fde) {
-  _LIBUNWIND_TRACE_API("__register_frame(%p)\n", fde);
+  _LIBUNWIND_TRACE_API("__register_frame(%p)", fde);
   _unw_add_dynamic_fde((unw_word_t)(uintptr_t) fde);
 }
 
 
 /// Called by programs with dynamic code generators that want
 /// to unregister a dynamically generated FDE.
 /// This function has existed on Mac OS X since 10.4, but
 /// was broken until 10.6.
 _LIBUNWIND_EXPORT void __deregister_frame(const void *fde) {
-  _LIBUNWIND_TRACE_API("__deregister_frame(%p)\n", fde);
+  _LIBUNWIND_TRACE_API("__deregister_frame(%p)", fde);
   _unw_remove_dynamic_fde((unw_word_t)(uintptr_t) fde);
 }
 
 
 // The following register/deregister functions are gcc extensions.
 // They have existed on Mac OS X, but have never worked because Mac OS X
 // before 10.6 used keymgr to track known FDEs, but these functions
 // never got updated to use keymgr.
 // For now, we implement these as do-nothing functions to keep any existing
 // applications working.  We also add the not in 10.6 symbol so that nwe
 // application won't be able to use them.
 
 #if _LIBUNWIND_SUPPORT_FRAME_APIS
 _LIBUNWIND_EXPORT void __register_frame_info_bases(const void *fde, void *ob,
                                                    void *tb, void *db) {
   (void)fde;
   (void)ob;
   (void)tb;
   (void)db;
- _LIBUNWIND_TRACE_API("__register_frame_info_bases(%p,%p, %p, %p)\n",
+ _LIBUNWIND_TRACE_API("__register_frame_info_bases(%p,%p, %p, %p)",
                             fde, ob, tb, db);
   // do nothing, this function never worked in Mac OS X
 }
 
 _LIBUNWIND_EXPORT void __register_frame_info(const void *fde, void *ob) {
   (void)fde;
   (void)ob;
-  _LIBUNWIND_TRACE_API("__register_frame_info(%p, %p)\n", fde, ob);
+  _LIBUNWIND_TRACE_API("__register_frame_info(%p, %p)", fde, ob);
   // do nothing, this function never worked in Mac OS X
 }
 
 _LIBUNWIND_EXPORT void __register_frame_info_table_bases(const void *fde,
                                                          void *ob, void *tb,
                                                          void *db) {
   (void)fde;
   (void)ob;
   (void)tb;
   (void)db;
   _LIBUNWIND_TRACE_API("__register_frame_info_table_bases"
-                             "(%p,%p, %p, %p)\n", fde, ob, tb, db);
+                             "(%p,%p, %p, %p)", fde, ob, tb, db);
   // do nothing, this function never worked in Mac OS X
 }
 
 _LIBUNWIND_EXPORT void __register_frame_info_table(const void *fde, void *ob) {
   (void)fde;
   (void)ob;
-  _LIBUNWIND_TRACE_API("__register_frame_info_table(%p, %p)\n", fde, ob);
+  _LIBUNWIND_TRACE_API("__register_frame_info_table(%p, %p)", fde, ob);
   // do nothing, this function never worked in Mac OS X
 }
 
 _LIBUNWIND_EXPORT void __register_frame_table(const void *fde) {
   (void)fde;
-  _LIBUNWIND_TRACE_API("__register_frame_table(%p)\n", fde);
+  _LIBUNWIND_TRACE_API("__register_frame_table(%p)", fde);
   // do nothing, this function never worked in Mac OS X
 }
 
 _LIBUNWIND_EXPORT void *__deregister_frame_info(const void *fde) {
   (void)fde;
-  _LIBUNWIND_TRACE_API("__deregister_frame_info(%p)\n", fde);
+  _LIBUNWIND_TRACE_API("__deregister_frame_info(%p)", fde);
   // do nothing, this function never worked in Mac OS X
   return NULL;
 }
 
 _LIBUNWIND_EXPORT void *__deregister_frame_info_bases(const void *fde) {
   (void)fde;
-  _LIBUNWIND_TRACE_API("__deregister_frame_info_bases(%p)\n", fde);
+  _LIBUNWIND_TRACE_API("__deregister_frame_info_bases(%p)", fde);
   // do nothing, this function never worked in Mac OS X
   return NULL;
 }
 #endif // _LIBUNWIND_SUPPORT_FRAME_APIS
 
 #endif // _LIBUNWIND_SUPPORT_DWARF_UNWIND
 
 #endif // _LIBUNWIND_BUILD_ZERO_COST_APIS

libunwind/trunk/src/UnwindLevel1.c

unwind_phase1(unw_context_t *uc, unw_cursor_t *cursor, _Unwind_Exception *exception_object) {
   // Walk each frame looking for a place to stop.
   bool handlerNotFound = true;
   while (handlerNotFound) {
     // Ask libunwind to get next frame (skip over first which is
     // _Unwind_RaiseException).
     int stepResult = unw_step(cursor);
     if (stepResult == 0) {
       _LIBUNWIND_TRACE_UNWINDING("unwind_phase1(ex_ojb=%p): unw_step() reached "
-                                 "bottom => _URC_END_OF_STACK\n",
+                                 "bottom => _URC_END_OF_STACK",
                                  (void *)exception_object);
       return _URC_END_OF_STACK;
     } else if (stepResult < 0) {
       _LIBUNWIND_TRACE_UNWINDING("unwind_phase1(ex_ojb=%p): unw_step failed => "
-                                 "_URC_FATAL_PHASE1_ERROR\n",
+                                 "_URC_FATAL_PHASE1_ERROR",
                                  (void *)exception_object);
       return _URC_FATAL_PHASE1_ERROR;
     }
 
     // See if frame has code to run (has personality routine).
     unw_proc_info_t frameInfo;
     unw_word_t sp;
     if (unw_get_proc_info(cursor, &frameInfo) != UNW_ESUCCESS) {
       _LIBUNWIND_TRACE_UNWINDING("unwind_phase1(ex_ojb=%p): unw_get_proc_info "
-                                 "failed => _URC_FATAL_PHASE1_ERROR\n",
+                                 "failed => _URC_FATAL_PHASE1_ERROR",
                                  (void *)exception_object);
       return _URC_FATAL_PHASE1_ERROR;
     }
 
     // When tracing, print state information.
     if (_LIBUNWIND_TRACING_UNWINDING) {
       char functionBuf[512];
       const char *functionName = functionBuf;
       unw_word_t offset;
       if ((unw_get_proc_name(cursor, functionBuf, sizeof(functionBuf),
                              &offset) != UNW_ESUCCESS) ||
           (frameInfo.start_ip + offset > frameInfo.end_ip))
         functionName = ".anonymous.";
       unw_word_t pc;
       unw_get_reg(cursor, UNW_REG_IP, &pc);
       _LIBUNWIND_TRACE_UNWINDING(
           "unwind_phase1(ex_ojb=%p): pc=0x%" PRIx64 ", start_ip=0x%" PRIx64
-          ", func=%s, lsda=0x%" PRIx64 ", personality=0x%" PRIx64 "\n",
+          ", func=%s, lsda=0x%" PRIx64 ", personality=0x%" PRIx64 "",
           (void *)exception_object, pc, frameInfo.start_ip, functionName,
           frameInfo.lsda, frameInfo.handler);
     }
 
     // If there is a personality routine, ask it if it will want to stop at
     // this frame.
     if (frameInfo.handler != 0) {
       __personality_routine p =
           (__personality_routine)(long)(frameInfo.handler);
       _LIBUNWIND_TRACE_UNWINDING(
-          "unwind_phase1(ex_ojb=%p): calling personality function %p\n",
+          "unwind_phase1(ex_ojb=%p): calling personality function %p",
           (void *)exception_object, (void *)(uintptr_t)p);
       _Unwind_Reason_Code personalityResult =
           (*p)(1, _UA_SEARCH_PHASE, exception_object->exception_class,
                exception_object, (struct _Unwind_Context *)(cursor));
       switch (personalityResult) {
       case _URC_HANDLER_FOUND:
         // found a catch clause or locals that need destructing in this frame
         // stop search and remember stack pointer at the frame
         handlerNotFound = false;
         unw_get_reg(cursor, UNW_REG_SP, &sp);
         exception_object->private_2 = (uintptr_t)sp;
         _LIBUNWIND_TRACE_UNWINDING(
-            "unwind_phase1(ex_ojb=%p): _URC_HANDLER_FOUND \n",
+            "unwind_phase1(ex_ojb=%p): _URC_HANDLER_FOUND",
             (void *)exception_object);
         return _URC_NO_REASON;
 
       case _URC_CONTINUE_UNWIND:
         _LIBUNWIND_TRACE_UNWINDING(
-            "unwind_phase1(ex_ojb=%p): _URC_CONTINUE_UNWIND\n",
+            "unwind_phase1(ex_ojb=%p): _URC_CONTINUE_UNWIND",
             (void *)exception_object);
         // continue unwinding
         break;
 
       default:
         // something went wrong
         _LIBUNWIND_TRACE_UNWINDING(
-            "unwind_phase1(ex_ojb=%p): _URC_FATAL_PHASE1_ERROR\n",
+            "unwind_phase1(ex_ojb=%p): _URC_FATAL_PHASE1_ERROR",
             (void *)exception_object);
         return _URC_FATAL_PHASE1_ERROR;
       }
     }
   }
   return _URC_NO_REASON;
 }
 
 
 static _Unwind_Reason_Code
 unwind_phase2(unw_context_t *uc, unw_cursor_t *cursor, _Unwind_Exception *exception_object) {
   unw_init_local(cursor, uc);
 
-  _LIBUNWIND_TRACE_UNWINDING("unwind_phase2(ex_ojb=%p)\n",
+  _LIBUNWIND_TRACE_UNWINDING("unwind_phase2(ex_ojb=%p)",
                              (void *)exception_object);
 
   // Walk each frame until we reach where search phase said to stop.
   while (true) {
 
     // Ask libunwind to get next frame (skip over first which is
     // _Unwind_RaiseException).
     int stepResult = unw_step(cursor);
     if (stepResult == 0) {
       _LIBUNWIND_TRACE_UNWINDING("unwind_phase2(ex_ojb=%p): unw_step() reached "
-                                 "bottom => _URC_END_OF_STACK\n",
+                                 "bottom => _URC_END_OF_STACK",
                                  (void *)exception_object);
       return _URC_END_OF_STACK;
     } else if (stepResult < 0) {
       _LIBUNWIND_TRACE_UNWINDING("unwind_phase2(ex_ojb=%p): unw_step failed => "
-                                 "_URC_FATAL_PHASE1_ERROR\n",
+                                 "_URC_FATAL_PHASE1_ERROR",
                                  (void *)exception_object);
       return _URC_FATAL_PHASE2_ERROR;
     }
 
     // Get info about this frame.
     unw_word_t sp;
     unw_proc_info_t frameInfo;
     unw_get_reg(cursor, UNW_REG_SP, &sp);
     if (unw_get_proc_info(cursor, &frameInfo) != UNW_ESUCCESS) {
       _LIBUNWIND_TRACE_UNWINDING("unwind_phase2(ex_ojb=%p): unw_get_proc_info "
-                                 "failed => _URC_FATAL_PHASE1_ERROR\n",
+                                 "failed => _URC_FATAL_PHASE1_ERROR",
                                  (void *)exception_object);
       return _URC_FATAL_PHASE2_ERROR;
     }
 
     // When tracing, print state information.
     if (_LIBUNWIND_TRACING_UNWINDING) {
       char functionBuf[512];
       const char *functionName = functionBuf;
       unw_word_t offset;
       if ((unw_get_proc_name(cursor, functionBuf, sizeof(functionBuf),
                              &offset) != UNW_ESUCCESS) ||
           (frameInfo.start_ip + offset > frameInfo.end_ip))
         functionName = ".anonymous.";
       _LIBUNWIND_TRACE_UNWINDING("unwind_phase2(ex_ojb=%p): start_ip=0x%" PRIx64
                                  ", func=%s, sp=0x%" PRIx64 ", lsda=0x%" PRIx64
-                                 ", personality=0x%" PRIx64 "\n",
+                                 ", personality=0x%" PRIx64,
                                  (void *)exception_object, frameInfo.start_ip,
                                  functionName, sp, frameInfo.lsda,
                                  frameInfo.handler);
     }
 
     // If there is a personality routine, tell it we are unwinding.
     if (frameInfo.handler != 0) {
       __personality_routine p =
           (__personality_routine)(long)(frameInfo.handler);
       _Unwind_Action action = _UA_CLEANUP_PHASE;
       if (sp == exception_object->private_2) {
         // Tell personality this was the frame it marked in phase 1.
         action = (_Unwind_Action)(_UA_CLEANUP_PHASE | _UA_HANDLER_FRAME);
       }
        _Unwind_Reason_Code personalityResult =
           (*p)(1, action, exception_object->exception_class, exception_object,
                (struct _Unwind_Context *)(cursor));
       switch (personalityResult) {
       case _URC_CONTINUE_UNWIND:
         // Continue unwinding
         _LIBUNWIND_TRACE_UNWINDING(
-            "unwind_phase2(ex_ojb=%p): _URC_CONTINUE_UNWIND\n",
+            "unwind_phase2(ex_ojb=%p): _URC_CONTINUE_UNWIND",
             (void *)exception_object);
         if (sp == exception_object->private_2) {
           // Phase 1 said we would stop at this frame, but we did not...
           _LIBUNWIND_ABORT("during phase1 personality function said it would "
                            "stop here, but now in phase2 it did not stop here");
         }
         break;
       case _URC_INSTALL_CONTEXT:
         _LIBUNWIND_TRACE_UNWINDING(
-            "unwind_phase2(ex_ojb=%p): _URC_INSTALL_CONTEXT\n",
+            "unwind_phase2(ex_ojb=%p): _URC_INSTALL_CONTEXT",
             (void *)exception_object);
         // Personality routine says to transfer control to landing pad.
         // We may get control back if landing pad calls _Unwind_Resume().
         if (_LIBUNWIND_TRACING_UNWINDING) {
           unw_word_t pc;
           unw_get_reg(cursor, UNW_REG_IP, &pc);
           unw_get_reg(cursor, UNW_REG_SP, &sp);
           _LIBUNWIND_TRACE_UNWINDING("unwind_phase2(ex_ojb=%p): re-entering "
                                      "user code with ip=0x%" PRIx64
-                                     ", sp=0x%" PRIx64 "\n",
+                                     ", sp=0x%" PRIx64,
                                      (void *)exception_object, pc, sp);
         }
         unw_resume(cursor);
         // unw_resume() only returns if there was an error.
         return _URC_FATAL_PHASE2_ERROR;
       default:
         // Personality routine returned an unknown result code.
         _LIBUNWIND_DEBUG_LOG("personality function returned unknown result %d",
unwind_phase2_forced(unw_context_t *uc, unw_cursor_t *cursor,
 
   // Walk each frame until we reach where search phase said to stop
   while (unw_step(cursor) > 0) {
 
     // Update info about this frame.
     unw_proc_info_t frameInfo;
     if (unw_get_proc_info(cursor, &frameInfo) != UNW_ESUCCESS) {
       _LIBUNWIND_TRACE_UNWINDING("unwind_phase2_forced(ex_ojb=%p): unw_step "
-                                 "failed => _URC_END_OF_STACK\n",
+                                 "failed => _URC_END_OF_STACK",
                                  (void *)exception_object);
       return _URC_FATAL_PHASE2_ERROR;
     }
 
     // When tracing, print state information.
     if (_LIBUNWIND_TRACING_UNWINDING) {
       char functionBuf[512];
       const char *functionName = functionBuf;
       unw_word_t offset;
       if ((unw_get_proc_name(cursor, functionBuf, sizeof(functionBuf),
                              &offset) != UNW_ESUCCESS) ||
           (frameInfo.start_ip + offset > frameInfo.end_ip))
         functionName = ".anonymous.";
       _LIBUNWIND_TRACE_UNWINDING(
           "unwind_phase2_forced(ex_ojb=%p): start_ip=0x%" PRIx64
-          ", func=%s, lsda=0x%" PRIx64 ", personality=0x%" PRIx64 "\n",
+          ", func=%s, lsda=0x%" PRIx64 ", personality=0x%" PRIx64,
           (void *)exception_object, frameInfo.start_ip, functionName,
           frameInfo.lsda, frameInfo.handler);
     }
 
     // Call stop function at each frame.
     _Unwind_Action action =
         (_Unwind_Action)(_UA_FORCE_UNWIND | _UA_CLEANUP_PHASE);
     _Unwind_Reason_Code stopResult =
         (*stop)(1, action, exception_object->exception_class, exception_object,
                 (struct _Unwind_Context *)(cursor), stop_parameter);
     _LIBUNWIND_TRACE_UNWINDING(
-        "unwind_phase2_forced(ex_ojb=%p): stop function returned %d\n",
+        "unwind_phase2_forced(ex_ojb=%p): stop function returned %d",
         (void *)exception_object, stopResult);
     if (stopResult != _URC_NO_REASON) {
       _LIBUNWIND_TRACE_UNWINDING(
-          "unwind_phase2_forced(ex_ojb=%p): stopped by stop function\n",
+          "unwind_phase2_forced(ex_ojb=%p): stopped by stop function",
           (void *)exception_object);
       return _URC_FATAL_PHASE2_ERROR;
     }
 
     // If there is a personality routine, tell it we are unwinding.
     if (frameInfo.handler != 0) {
       __personality_routine p =
           (__personality_routine)(long)(frameInfo.handler);
       _LIBUNWIND_TRACE_UNWINDING(
-          "unwind_phase2_forced(ex_ojb=%p): calling personality function %p\n",
+          "unwind_phase2_forced(ex_ojb=%p): calling personality function %p",
           (void *)exception_object, (void *)(uintptr_t)p);
       _Unwind_Reason_Code personalityResult =
           (*p)(1, action, exception_object->exception_class, exception_object,
                (struct _Unwind_Context *)(cursor));
       switch (personalityResult) {
       case _URC_CONTINUE_UNWIND:
         _LIBUNWIND_TRACE_UNWINDING("unwind_phase2_forced(ex_ojb=%p): "
                                    "personality returned "
-                                   "_URC_CONTINUE_UNWIND\n",
+                                   "_URC_CONTINUE_UNWIND",
                                    (void *)exception_object);
         // Destructors called, continue unwinding
         break;
       case _URC_INSTALL_CONTEXT:
         _LIBUNWIND_TRACE_UNWINDING("unwind_phase2_forced(ex_ojb=%p): "
                                    "personality returned "
-                                   "_URC_INSTALL_CONTEXT\n",
+                                   "_URC_INSTALL_CONTEXT",
                                    (void *)exception_object);
         // We may get control back if landing pad calls _Unwind_Resume().
         unw_resume(cursor);
         break;
       default:
         // Personality routine returned an unknown result code.
         _LIBUNWIND_TRACE_UNWINDING("unwind_phase2_forced(ex_ojb=%p): "
                                    "personality returned %d, "
-                                   "_URC_FATAL_PHASE2_ERROR\n",
+                                   "_URC_FATAL_PHASE2_ERROR",
                                    (void *)exception_object, personalityResult);
         return _URC_FATAL_PHASE2_ERROR;
       }
     }
   }
 
   // Call stop function one last time and tell it we've reached the end
   // of the stack.
   _LIBUNWIND_TRACE_UNWINDING("unwind_phase2_forced(ex_ojb=%p): calling stop "
-                             "function with _UA_END_OF_STACK\n",
+                             "function with _UA_END_OF_STACK",
                              (void *)exception_object);
   _Unwind_Action lastAction =
       (_Unwind_Action)(_UA_FORCE_UNWIND | _UA_CLEANUP_PHASE | _UA_END_OF_STACK);
   (*stop)(1, lastAction, exception_object->exception_class, exception_object,
           (struct _Unwind_Context *)(cursor), stop_parameter);
 
   // Clean up phase did not resume at the frame that the search phase said it
   // would.
   return _URC_FATAL_PHASE2_ERROR;
 }
 
 
 /// Called by __cxa_throw.  Only returns if there is a fatal error.
 _LIBUNWIND_EXPORT _Unwind_Reason_Code
 _Unwind_RaiseException(_Unwind_Exception *exception_object) {
-  _LIBUNWIND_TRACE_API("_Unwind_RaiseException(ex_obj=%p)\n",
+  _LIBUNWIND_TRACE_API("_Unwind_RaiseException(ex_obj=%p)",
                        (void *)exception_object);
   unw_context_t uc;
   unw_cursor_t cursor;
   unw_getcontext(&uc);
 
   // Mark that this is a non-forced unwind, so _Unwind_Resume()
   // can do the right thing.
   exception_object->private_1 = 0;

 /// geneated user code.  All other _Unwind_* routines are called
 /// by the C++ runtime __cxa_* routines.
 ///
 /// Note: re-throwing an exception (as opposed to continuing the unwind)
 /// is implemented by having the code call __cxa_rethrow() which
 /// in turn calls _Unwind_Resume_or_Rethrow().
 _LIBUNWIND_EXPORT void
 _Unwind_Resume(_Unwind_Exception *exception_object) {
-  _LIBUNWIND_TRACE_API("_Unwind_Resume(ex_obj=%p)\n", (void *)exception_object);
+  _LIBUNWIND_TRACE_API("_Unwind_Resume(ex_obj=%p)", (void *)exception_object);
   unw_context_t uc;
   unw_cursor_t cursor;
   unw_getcontext(&uc);
 
   if (exception_object->private_1 != 0)
     unwind_phase2_forced(&uc, &cursor, exception_object,
                          (_Unwind_Stop_Fn) exception_object->private_1,
                          (void *)exception_object->private_2);
   else
     unwind_phase2(&uc, &cursor, exception_object);
 
   // Clients assume _Unwind_Resume() does not return, so all we can do is abort.
   _LIBUNWIND_ABORT("_Unwind_Resume() can't return");
 }
 
 
 
 /// Not used by C++.
 /// Unwinds stack, calling "stop" function at each frame.
 /// Could be used to implement longjmp().
 _LIBUNWIND_EXPORT _Unwind_Reason_Code
 _Unwind_ForcedUnwind(_Unwind_Exception *exception_object,
                      _Unwind_Stop_Fn stop, void *stop_parameter) {
-  _LIBUNWIND_TRACE_API("_Unwind_ForcedUnwind(ex_obj=%p, stop=%p)\n",
+  _LIBUNWIND_TRACE_API("_Unwind_ForcedUnwind(ex_obj=%p, stop=%p)",
                        (void *)exception_object, (void *)(uintptr_t)stop);
   unw_context_t uc;
   unw_cursor_t cursor;
   unw_getcontext(&uc);
 
   // Mark that this is a forced unwind, so _Unwind_Resume() can do
   // the right thing.
   exception_object->private_1 = (uintptr_t) stop;
   exception_object->private_2 = (uintptr_t) stop_parameter;
 
   // do it
   return unwind_phase2_forced(&uc, &cursor, exception_object, stop, stop_parameter);
 }
 
 
 /// Called by personality handler during phase 2 to get LSDA for current frame.
 _LIBUNWIND_EXPORT uintptr_t
 _Unwind_GetLanguageSpecificData(struct _Unwind_Context *context) {
   unw_cursor_t *cursor = (unw_cursor_t *)context;
   unw_proc_info_t frameInfo;
   uintptr_t result = 0;
   if (unw_get_proc_info(cursor, &frameInfo) == UNW_ESUCCESS)
     result = (uintptr_t)frameInfo.lsda;
   _LIBUNWIND_TRACE_API(
-      "_Unwind_GetLanguageSpecificData(context=%p) => 0x%" PRIxPTR "\n",
+      "_Unwind_GetLanguageSpecificData(context=%p) => 0x%" PRIxPTR,
       (void *)context, result);
   if (result != 0) {
     if (*((uint8_t *)result) != 0xFF)
-      _LIBUNWIND_DEBUG_LOG("lsda at 0x%" PRIxPTR " does not start with 0xFF\n",
+      _LIBUNWIND_DEBUG_LOG("lsda at 0x%" PRIxPTR " does not start with 0xFF",
                            result);
   }
   return result;
 }
 
 
 /// Called by personality handler during phase 2 to find the start of the
 /// function.
 _LIBUNWIND_EXPORT uintptr_t
 _Unwind_GetRegionStart(struct _Unwind_Context *context) {
   unw_cursor_t *cursor = (unw_cursor_t *)context;
   unw_proc_info_t frameInfo;
   uintptr_t result = 0;
   if (unw_get_proc_info(cursor, &frameInfo) == UNW_ESUCCESS)
     result = (uintptr_t)frameInfo.start_ip;
-  _LIBUNWIND_TRACE_API("_Unwind_GetRegionStart(context=%p) => 0x%" PRIxPTR "\n",
+  _LIBUNWIND_TRACE_API("_Unwind_GetRegionStart(context=%p) => 0x%" PRIxPTR,
                        (void *)context, result);
   return result;
 }
 
 
 /// Called by personality handler during phase 2 if a foreign exception
 // is caught.
 _LIBUNWIND_EXPORT void
 _Unwind_DeleteException(_Unwind_Exception *exception_object) {
-  _LIBUNWIND_TRACE_API("_Unwind_DeleteException(ex_obj=%p)\n",
+  _LIBUNWIND_TRACE_API("_Unwind_DeleteException(ex_obj=%p)",
                        (void *)exception_object);
   if (exception_object->exception_cleanup != NULL)
     (*exception_object->exception_cleanup)(_URC_FOREIGN_EXCEPTION_CAUGHT,
                                            exception_object);
 }
 
 /// Called by personality handler during phase 2 to get register values.
 _LIBUNWIND_EXPORT uintptr_t
 _Unwind_GetGR(struct _Unwind_Context *context, int index) {
   unw_cursor_t *cursor = (unw_cursor_t *)context;
   unw_word_t result;
   unw_get_reg(cursor, index, &result);
-  _LIBUNWIND_TRACE_API("_Unwind_GetGR(context=%p, reg=%d) => 0x%" PRIx64 "\n",
+  _LIBUNWIND_TRACE_API("_Unwind_GetGR(context=%p, reg=%d) => 0x%" PRIx64,
                        (void *)context, index, (uint64_t)result);
   return (uintptr_t)result;
 }
 
 /// Called by personality handler during phase 2 to alter register values.
 _LIBUNWIND_EXPORT void _Unwind_SetGR(struct _Unwind_Context *context, int index,
                                      uintptr_t value) {
   _LIBUNWIND_TRACE_API("_Unwind_SetGR(context=%p, reg=%d, value=0x%0" PRIx64
-                       ")\n",
+                       ")",
                        (void *)context, index, (uint64_t)value);
   unw_cursor_t *cursor = (unw_cursor_t *)context;
   unw_set_reg(cursor, index, value);
 }
 
 /// Called by personality handler during phase 2 to get instruction pointer.
 _LIBUNWIND_EXPORT uintptr_t _Unwind_GetIP(struct _Unwind_Context *context) {
   unw_cursor_t *cursor = (unw_cursor_t *)context;
   unw_word_t result;
   unw_get_reg(cursor, UNW_REG_IP, &result);
-  _LIBUNWIND_TRACE_API("_Unwind_GetIP(context=%p) => 0x%" PRIx64 "\n",
+  _LIBUNWIND_TRACE_API("_Unwind_GetIP(context=%p) => 0x%" PRIx64,
                        (void *)context, (uint64_t)result);
   return (uintptr_t)result;
 }
 
 /// Called by personality handler during phase 2 to alter instruction pointer,
 /// such as setting where the landing pad is, so _Unwind_Resume() will
 /// start executing in the landing pad.
 _LIBUNWIND_EXPORT void _Unwind_SetIP(struct _Unwind_Context *context,
                                      uintptr_t value) {
-  _LIBUNWIND_TRACE_API("_Unwind_SetIP(context=%p, value=0x%0" PRIx64 ")\n",
+  _LIBUNWIND_TRACE_API("_Unwind_SetIP(context=%p, value=0x%0" PRIx64 ")",
                        (void *)context, (uint64_t)value);
   unw_cursor_t *cursor = (unw_cursor_t *)context;
   unw_set_reg(cursor, UNW_REG_IP, value);
 }
 
 #endif // !_LIBUNWIND_ARM_EHABI

libunwind/trunk/src/config.h

 
 #define _LIBUNWIND_ABORT(msg)                                                  \
   do {                                                                         \
     fprintf(stderr, "libunwind: %s %s:%d - %s\n", __func__, __FILE__,          \
             __LINE__, msg);                                                    \
     fflush(stderr);                                                            \
     abort();                                                                   \
   } while (0)
-#define _LIBUNWIND_LOG(msg, ...) fprintf(stderr, "libunwind: " msg, __VA_ARGS__)
+#define _LIBUNWIND_LOG(msg, ...) fprintf(stderr, "libunwind: " msg "\n", __VA_ARGS__)
 
 // Macros that define away in non-Debug builds
 #ifdef NDEBUG
   #define _LIBUNWIND_DEBUG_LOG(msg, ...)
   #define _LIBUNWIND_TRACE_API(msg, ...)
   #define _LIBUNWIND_TRACING_UNWINDING 0
   #define _LIBUNWIND_TRACE_UNWINDING(msg, ...)
   #define _LIBUNWIND_LOG_NON_ZERO(x) x

libunwind/trunk/src/libunwind.cpp

 /// record the registers and stack position of the caller
 extern int unw_getcontext(unw_context_t *);
 // note: unw_getcontext() implemented in assembly
 
 /// Create a cursor of a thread in this process given 'context' recorded by
 /// unw_getcontext().
 _LIBUNWIND_EXPORT int unw_init_local(unw_cursor_t *cursor,
                                      unw_context_t *context) {
-  _LIBUNWIND_TRACE_API("unw_init_local(cursor=%p, context=%p)\n",
+  _LIBUNWIND_TRACE_API("unw_init_local(cursor=%p, context=%p)",
                        static_cast<void *>(cursor),
                        static_cast<void *>(context));
 #if defined(__i386__)
 # define REGISTER_KIND Registers_x86
 #elif defined(__x86_64__)
 # define REGISTER_KIND Registers_x86_64
 #elif defined(__ppc__)
 # define REGISTER_KIND Registers_ppc
#endif
   }
 }
 #endif // UNW_REMOTE
 
 
 /// Get value of specified register at cursor position in stack frame.
 _LIBUNWIND_EXPORT int unw_get_reg(unw_cursor_t *cursor, unw_regnum_t regNum,
                                   unw_word_t *value) {
-  _LIBUNWIND_TRACE_API("unw_get_reg(cursor=%p, regNum=%d, &value=%p)\n",
+  _LIBUNWIND_TRACE_API("unw_get_reg(cursor=%p, regNum=%d, &value=%p)",
                        static_cast<void *>(cursor), regNum,
                        static_cast<void *>(value));
   AbstractUnwindCursor *co = (AbstractUnwindCursor *)cursor;
   if (co->validReg(regNum)) {
     *value = co->getReg(regNum);
     return UNW_ESUCCESS;
   }
   return UNW_EBADREG;
 }
 
 
 /// Set value of specified register at cursor position in stack frame.
 _LIBUNWIND_EXPORT int unw_set_reg(unw_cursor_t *cursor, unw_regnum_t regNum,
                                   unw_word_t value) {
-  _LIBUNWIND_TRACE_API("unw_set_reg(cursor=%p, regNum=%d, value=0x%llX)\n",
+  _LIBUNWIND_TRACE_API("unw_set_reg(cursor=%p, regNum=%d, value=0x%llX)",
                        static_cast<void *>(cursor), regNum, (long long)value);
   typedef LocalAddressSpace::pint_t pint_t;
   AbstractUnwindCursor *co = (AbstractUnwindCursor *)cursor;
   if (co->validReg(regNum)) {
     co->setReg(regNum, (pint_t)value);
     // specical case altering IP to re-find info (being called by personality
     // function)
     if (regNum == UNW_REG_IP)
       co->setInfoBasedOnIPRegister(false);
     return UNW_ESUCCESS;
   }
   return UNW_EBADREG;
 }
 
 
 /// Get value of specified float register at cursor position in stack frame.
 _LIBUNWIND_EXPORT int unw_get_fpreg(unw_cursor_t *cursor, unw_regnum_t regNum,
                                     unw_fpreg_t *value) {
-  _LIBUNWIND_TRACE_API("unw_get_fpreg(cursor=%p, regNum=%d, &value=%p)\n",
+  _LIBUNWIND_TRACE_API("unw_get_fpreg(cursor=%p, regNum=%d, &value=%p)",
                        static_cast<void *>(cursor), regNum,
                        static_cast<void *>(value));
   AbstractUnwindCursor *co = (AbstractUnwindCursor *)cursor;
   if (co->validFloatReg(regNum)) {
     *value = co->getFloatReg(regNum);
     return UNW_ESUCCESS;
   }
   return UNW_EBADREG;
 }
 
 
 /// Set value of specified float register at cursor position in stack frame.
 _LIBUNWIND_EXPORT int unw_set_fpreg(unw_cursor_t *cursor, unw_regnum_t regNum,
                                     unw_fpreg_t value) {
 #if _LIBUNWIND_ARM_EHABI
-  _LIBUNWIND_TRACE_API("unw_set_fpreg(cursor=%p, regNum=%d, value=%llX)\n",
+  _LIBUNWIND_TRACE_API("unw_set_fpreg(cursor=%p, regNum=%d, value=%llX)",
                        static_cast<void *>(cursor), regNum, value);
 #else
-  _LIBUNWIND_TRACE_API("unw_set_fpreg(cursor=%p, regNum=%d, value=%g)\n",
+  _LIBUNWIND_TRACE_API("unw_set_fpreg(cursor=%p, regNum=%d, value=%g)",
                        static_cast<void *>(cursor), regNum, value);
 #endif
   AbstractUnwindCursor *co = (AbstractUnwindCursor *)cursor;
   if (co->validFloatReg(regNum)) {
     co->setFloatReg(regNum, value);
     return UNW_ESUCCESS;
   }
   return UNW_EBADREG;
 }
 
 
 /// Move cursor to next frame.
 _LIBUNWIND_EXPORT int unw_step(unw_cursor_t *cursor) {
-  _LIBUNWIND_TRACE_API("unw_step(cursor=%p)\n", static_cast<void *>(cursor));
+  _LIBUNWIND_TRACE_API("unw_step(cursor=%p)", static_cast<void *>(cursor));
   AbstractUnwindCursor *co = (AbstractUnwindCursor *)cursor;
   return co->step();
 }
 
 
 /// Get unwind info at cursor position in stack frame.
 _LIBUNWIND_EXPORT int unw_get_proc_info(unw_cursor_t *cursor,
                                         unw_proc_info_t *info) {
-  _LIBUNWIND_TRACE_API("unw_get_proc_info(cursor=%p, &info=%p)\n",
+  _LIBUNWIND_TRACE_API("unw_get_proc_info(cursor=%p, &info=%p)",
                        static_cast<void *>(cursor), static_cast<void *>(info));
   AbstractUnwindCursor *co = (AbstractUnwindCursor *)cursor;
   co->getInfo(info);
   if (info->end_ip == 0)
     return UNW_ENOINFO;
   else
     return UNW_ESUCCESS;
 }
 
 
 /// Resume execution at cursor position (aka longjump).
 _LIBUNWIND_EXPORT int unw_resume(unw_cursor_t *cursor) {
-  _LIBUNWIND_TRACE_API("unw_resume(cursor=%p)\n", static_cast<void *>(cursor));
+  _LIBUNWIND_TRACE_API("unw_resume(cursor=%p)", static_cast<void *>(cursor));
   AbstractUnwindCursor *co = (AbstractUnwindCursor *)cursor;
   co->jumpto();
   return UNW_EUNSPEC;
 }
 
 
 /// Get name of function at cursor position in stack frame.
 _LIBUNWIND_EXPORT int unw_get_proc_name(unw_cursor_t *cursor, char *buf,
                                         size_t bufLen, unw_word_t *offset) {
-  _LIBUNWIND_TRACE_API("unw_get_proc_name(cursor=%p, &buf=%p, bufLen=%lu)\n",
+  _LIBUNWIND_TRACE_API("unw_get_proc_name(cursor=%p, &buf=%p, bufLen=%lu)",
                        static_cast<void *>(cursor), static_cast<void *>(buf),
                        static_cast<unsigned long>(bufLen));
   AbstractUnwindCursor *co = (AbstractUnwindCursor *)cursor;
   if (co->getFunctionName(buf, bufLen, offset))
     return UNW_ESUCCESS;
   else
     return UNW_EUNSPEC;
 }
 
 
 /// Checks if a register is a floating-point register.
 _LIBUNWIND_EXPORT int unw_is_fpreg(unw_cursor_t *cursor, unw_regnum_t regNum) {
-  _LIBUNWIND_TRACE_API("unw_is_fpreg(cursor=%p, regNum=%d)\n",
+  _LIBUNWIND_TRACE_API("unw_is_fpreg(cursor=%p, regNum=%d)",
                        static_cast<void *>(cursor), regNum);
   AbstractUnwindCursor *co = (AbstractUnwindCursor *)cursor;
   return co->validFloatReg(regNum);
 }
 
 
 /// Checks if a register is a floating-point register.
 _LIBUNWIND_EXPORT const char *unw_regname(unw_cursor_t *cursor,
                                           unw_regnum_t regNum) {
-  _LIBUNWIND_TRACE_API("unw_regname(cursor=%p, regNum=%d)\n",
+  _LIBUNWIND_TRACE_API("unw_regname(cursor=%p, regNum=%d)",
                        static_cast<void *>(cursor), regNum);
   AbstractUnwindCursor *co = (AbstractUnwindCursor *)cursor;
   return co->getRegisterName(regNum);
 }
 
 
 /// Checks if current frame is signal trampoline.
 _LIBUNWIND_EXPORT int unw_is_signal_frame(unw_cursor_t *cursor) {
-  _LIBUNWIND_TRACE_API("unw_is_signal_frame(cursor=%p)\n",
+  _LIBUNWIND_TRACE_API("unw_is_signal_frame(cursor=%p)",
                        static_cast<void *>(cursor));
   AbstractUnwindCursor *co = (AbstractUnwindCursor *)cursor;
   return co->isSignalFrame();
 }
 
 #ifdef __arm__
 // Save VFP registers d0-d15 using FSTMIADX instead of FSTMIADD
 _LIBUNWIND_EXPORT void unw_save_vfp_as_X(unw_cursor_t *cursor) {
-  _LIBUNWIND_TRACE_API("unw_fpreg_save_vfp_as_X(cursor=%p)\n",
+  _LIBUNWIND_TRACE_API("unw_fpreg_save_vfp_as_X(cursor=%p)",
                        static_cast<void *>(cursor));
   AbstractUnwindCursor *co = (AbstractUnwindCursor *)cursor;
   return co->saveVFPAsX();
 }
 #endif
 
 
 #if _LIBUNWIND_SUPPORT_DWARF_UNWIND
 /// SPI: walks cached DWARF entries
 _LIBUNWIND_EXPORT void unw_iterate_dwarf_unwind_cache(void (*func)(
     unw_word_t ip_start, unw_word_t ip_end, unw_word_t fde, unw_word_t mh)) {
-  _LIBUNWIND_TRACE_API("unw_iterate_dwarf_unwind_cache(func=%p)\n",
+  _LIBUNWIND_TRACE_API("unw_iterate_dwarf_unwind_cache(func=%p)",
                        reinterpret_cast<void *>(func));
   DwarfFDECache<LocalAddressSpace>::iterateCacheEntries(func);
 }
 
 
 /// IPI: for __register_frame()
 void _unw_add_dynamic_fde(unw_word_t fde) {
   CFI_Parser<LocalAddressSpace>::FDE_Info fdeInfo;