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[NFC][libc++abi] Remove trailing whitespace from sources

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llvm-svn: 373379
This commit is contained in:
Louis Dionne 2019-10-01 18:28:20 +00:00
parent 856c1cd852
commit 2cee0e2d97
6 changed files with 86 additions and 86 deletions
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42
libcxxabi/src/cxa_exception.cpp
View File

@ -4,10 +4,10 @@
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//
//
// This file implements the "Exception Handling APIs"
// https://itanium-cxx-abi.github.io/cxx-abi/abi-eh.html
//
//
//===----------------------------------------------------------------------===//
#include "cxxabi.h"
@ -81,7 +81,7 @@ size_t cxa_exception_size_from_exception_thrown_size(size_t size) {
void __setExceptionClass(_Unwind_Exception* unwind_exception, uint64_t newValue) {
::memcpy(&unwind_exception->exception_class, &newValue, sizeof(newValue));
}
static void setOurExceptionClass(_Unwind_Exception* unwind_exception) {
__setExceptionClass(unwind_exception, kOurExceptionClass);
@ -103,7 +103,7 @@ uint64_t __getExceptionClass(const _Unwind_Exception* unwind_exception) {
}
bool __isOurExceptionClass(const _Unwind_Exception* unwind_exception) {
return (__getExceptionClass(unwind_exception) & get_vendor_and_language) ==
return (__getExceptionClass(unwind_exception) & get_vendor_and_language) ==
(kOurExceptionClass & get_vendor_and_language);
}
@ -123,7 +123,7 @@ static inline int decrementHandlerCount(__cxa_exception *exception) {
/*
If reason isn't _URC_FOREIGN_EXCEPTION_CAUGHT, then the terminateHandler
stored in exc is called. Otherwise the exceptionDestructor stored in
stored in exc is called. Otherwise the exceptionDestructor stored in
exc is called, and then the memory for the exception is deallocated.
This is never called for a __cxa_dependent_exception.
@ -145,7 +145,7 @@ static _LIBCXXABI_NORETURN void failed_throw(__cxa_exception* exception_header)
// * For purposes of this ABI, several things are considered exception handlers:
// ** A terminate() call due to a throw.
// and
// * Upon entry, Following initialization of the catch parameter,
// * Upon entry, Following initialization of the catch parameter,
// a handler must call:
// * void *__cxa_begin_catch(void *exceptionObject );
(void) __cxa_begin_catch(&exception_header->unwindHeader);
@ -237,15 +237,15 @@ routine never returns.
The __cxa_throw routine will do the following:
* Obtain the __cxa_exception header from the thrown exception object address,
which can be computed as follows:
__cxa_exception *header = ((__cxa_exception *) thrown_exception - 1);
which can be computed as follows:
__cxa_exception *header = ((__cxa_exception *) thrown_exception - 1);
* Save the current unexpected_handler and terminate_handler in the __cxa_exception header.
* Save the tinfo and dest arguments in the __cxa_exception header.
* Save the tinfo and dest arguments in the __cxa_exception header.
* Set the exception_class field in the unwind header. This is a 64-bit value
representing the ASCII string "XXXXC++\0", where "XXXX" is a
vendor-dependent string. That is, for implementations conforming to this
ABI, the low-order 4 bytes of this 64-bit value will be "C++\0".
* Increment the uncaught_exception flag.
* Increment the uncaught_exception flag.
* Call _Unwind_RaiseException in the system unwind library, Its argument is the
pointer to the thrown exception, which __cxa_throw itself received as an argument.
__Unwind_RaiseException begins the process of stack unwinding, described
@ -386,7 +386,7 @@ asm (
" .popsection"
);
#endif // defined(_LIBCXXABI_ARM_EHABI)
/*
This routine can catch foreign or native exceptions. If native, the exception
can be a primary or dependent variety. This routine may remain blissfully
@ -394,7 +394,7 @@ ignorant of whether the native exception is primary or dependent.
If the exception is native:
* Increment's the exception's handler count.
* Push the exception on the stack of currently-caught exceptions if it is not
* Push the exception on the stack of currently-caught exceptions if it is not
already there (from a rethrow).
* Decrements the uncaught_exception count.
* Returns the adjusted pointer to the exception object, which is stored in
@ -415,7 +415,7 @@ to terminate or unexpected during unwinding.
doesn't. It has a stack of __cxa_exception (which has a next* in it).
* Do not decrement the uncaught_exception count because we didn't increment it
in __cxa_throw (or one of our rethrow functions).
* If we haven't terminated, assume the exception object is just past the
* If we haven't terminated, assume the exception object is just past the
_Unwind_Exception and return a pointer to that.
*/
void*
@ -539,7 +539,7 @@ void __cxa_end_catch() {
__cxa_decrement_exception_refcount(thrown_object_from_cxa_exception(exception_header));
}
}
}
}
else
{
// The foreign exception has not been rethrown. Pop the stack
@ -572,10 +572,10 @@ std::type_info *__cxa_current_exception_type() {
// 2.5.4 Rethrowing Exceptions
/* This routine can rethrow native or foreign exceptions.
If the exception is native:
* marks the exception object on top of the caughtExceptions stack
(in an implementation-defined way) as being rethrown.
* If the caughtExceptions stack is empty, it calls terminate()
(see [C++FDIS] [except.throw], 15.1.8).
* marks the exception object on top of the caughtExceptions stack
(in an implementation-defined way) as being rethrown.
* If the caughtExceptions stack is empty, it calls terminate()
(see [C++FDIS] [except.throw], 15.1.8).
* It then calls _Unwind_RaiseException which should not return
(terminate if it does).
Note: exception_header may be masquerading as a __cxa_dependent_exception
@ -609,7 +609,7 @@ void __cxa_rethrow() {
#endif
// If we get here, some kind of unwinding error has occurred.
// There is some weird code generation bug happening with
// There is some weird code generation bug happening with
// Apple clang version 4.0 (tags/Apple/clang-418.0.2) (based on LLVM 3.1svn)
// If we call failed_throw here. Turns up with -O2 or higher, and -Os.
__cxa_begin_catch(&exception_header->unwindHeader);
@ -664,7 +664,7 @@ void __cxa_decrement_exception_refcount(void *thrown_object) throw() {
returns null.
We can use __cxa_get_globals_fast here to get the globals because if there have
been no exceptions thrown, ever, on this thread, we can return NULL without
been no exceptions thrown, ever, on this thread, we can return NULL without
the need to allocate the exception-handling globals.
*/
void *__cxa_current_primary_exception() throw() {
@ -697,7 +697,7 @@ static
void
dependent_exception_cleanup(_Unwind_Reason_Code reason, _Unwind_Exception* unwind_exception)
{
__cxa_dependent_exception* dep_exception_header =
__cxa_dependent_exception* dep_exception_header =
reinterpret_cast<__cxa_dependent_exception*>(unwind_exception + 1) - 1;
if (_URC_FOREIGN_EXCEPTION_CAUGHT != reason)
std::__terminate(dep_exception_header->terminateHandler);

4
libcxxabi/src/cxa_exception.h
View File

@ -4,10 +4,10 @@
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//
//
// This file implements the "Exception Handling APIs"
// https://itanium-cxx-abi.github.io/cxx-abi/abi-eh.html
//
//
//===----------------------------------------------------------------------===//
#ifndef _CXA_EXCEPTION_H

10
libcxxabi/src/cxa_exception_storage.cpp
View File

@ -4,10 +4,10 @@
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//
//
// This file implements the storage for the "Caught Exception Stack"
// https://itanium-cxx-abi.github.io/cxx-abi/abi-eh.html#cxx-exc-stack
//
//
//===----------------------------------------------------------------------===//
#include "cxa_exception.h"
@ -69,13 +69,13 @@ namespace {
if ( 0 != std::__libcpp_tls_create ( &key_, destruct_ ) )
abort_message("cannot create thread specific key for __cxa_get_globals()");
}
}
}
extern "C" {
__cxa_eh_globals * __cxa_get_globals () {
// Try to get the globals for this thread
__cxa_eh_globals* retVal = __cxa_get_globals_fast ();
// If this is the first time we've been asked for these globals, create them
if ( NULL == retVal ) {
retVal = static_cast<__cxa_eh_globals*>
@ -99,7 +99,7 @@ extern "C" {
// static int init = construct_();
return static_cast<__cxa_eh_globals*>(std::__libcpp_tls_get(key_));
}
}
}
#endif

4
libcxxabi/src/cxa_noexception.cpp
View File

@ -4,10 +4,10 @@
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//
//
// This file implements the "Exception Handling APIs"
// https://itanium-cxx-abi.github.io/cxx-abi/abi-eh.html
//
//
//===----------------------------------------------------------------------===//
// Support functions for the no-exceptions libc++ library

42
libcxxabi/src/cxa_personality.cpp
View File

@ -4,11 +4,11 @@
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//
//
// This file implements the "Exception Handling APIs"
// https://itanium-cxx-abi.github.io/cxx-abi/abi-eh.html
// http://www.intel.com/design/itanium/downloads/245358.htm
//
//
//===----------------------------------------------------------------------===//
#include <assert.h>
@ -188,8 +188,8 @@ enum
DW_EH_PE_omit = 0xFF
};
/// Read a uleb128 encoded value and advance pointer
/// See Variable Length Data Appendix C in:
/// Read a uleb128 encoded value and advance pointer
/// See Variable Length Data Appendix C in:
/// @link http://dwarfstd.org/Dwarf4.pdf @unlink
/// @param data reference variable holding memory pointer to decode from
/// @returns decoded value
@ -211,8 +211,8 @@ readULEB128(const uint8_t** data)
return result;
}
/// Read a sleb128 encoded value and advance pointer
/// See Variable Length Data Appendix C in:
/// Read a sleb128 encoded value and advance pointer
/// See Variable Length Data Appendix C in:
/// @link http://dwarfstd.org/Dwarf4.pdf @unlink
/// @param data reference variable holding memory pointer to decode from
/// @returns decoded value
@ -236,8 +236,8 @@ readSLEB128(const uint8_t** data)
return static_cast<intptr_t>(result);
}
/// Read a pointer encoded value and advance pointer
/// See Variable Length Data in:
/// Read a pointer encoded value and advance pointer
/// See Variable Length Data in:
/// @link http://dwarfstd.org/Dwarf3.pdf @unlink
/// @param data reference variable holding memory pointer to decode from
/// @param encoding dwarf encoding type
@ -247,10 +247,10 @@ uintptr_t
readEncodedPointer(const uint8_t** data, uint8_t encoding)
{
uintptr_t result = 0;
if (encoding == DW_EH_PE_omit)
if (encoding == DW_EH_PE_omit)
return result;
const uint8_t* p = *data;
// first get value
// first get value
switch (encoding & 0x0F)
{
case DW_EH_PE_absptr:
@ -281,15 +281,15 @@ readEncodedPointer(const uint8_t** data, uint8_t encoding)
result = readPointerHelper<int64_t>(p);
break;
default:
// not supported
// not supported
abort();
break;
}
// then add relative offset
// then add relative offset
switch (encoding & 0x70)
{
case DW_EH_PE_absptr:
// do nothing
// do nothing
break;
case DW_EH_PE_pcrel:
if (result)
@ -300,11 +300,11 @@ readEncodedPointer(const uint8_t** data, uint8_t encoding)
case DW_EH_PE_funcrel:
case DW_EH_PE_aligned:
default:
// not supported
// not supported
abort();
break;
}
// then apply indirection
// then apply indirection
if (result && (encoding & DW_EH_PE_indirect))
result = *((uintptr_t*)result);
*data = p;
@ -613,7 +613,7 @@ static void scan_eh_tab(scan_results &results, _Unwind_Action actions,
// Get the current instruction pointer and offset it before next
// instruction in the current frame which threw the exception.
uintptr_t ip = _Unwind_GetIP(context) - 1;
// Get beginning current frame's code (as defined by the
// Get beginning current frame's code (as defined by the
// emitted dwarf code)
uintptr_t funcStart = _Unwind_GetRegionStart(context);
#ifdef __USING_SJLJ_EXCEPTIONS__
@ -646,8 +646,8 @@ static void scan_eh_tab(scan_results &results, _Unwind_Action actions,
uintptr_t classInfoOffset = readULEB128(&lsda);
classInfo = lsda + classInfoOffset;
}
// Walk call-site table looking for range that
// includes current PC.
// Walk call-site table looking for range that
// includes current PC.
uint8_t callSiteEncoding = *lsda++;
#ifdef __USING_SJLJ_EXCEPTIONS__
(void)callSiteEncoding; // When using SjLj exceptions, callSiteEncoding is never used
@ -928,13 +928,13 @@ _UA_CLEANUP_PHASE
else
Recover state from header
Transfer control to landing pad. return _URC_INSTALL_CONTEXT
Else
This branch handles both normal C++ non-catching handlers (cleanups)
and forced unwinding.
and forced unwinding.
Scan for anything that can not stop unwinding:
1. A cleanup.
If a cleanup is found

70
libcxxabi/src/cxa_vector.cpp
View File

@ -4,10 +4,10 @@
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//
//
// This file implements the "Array Construction and Destruction APIs"
// https://itanium-cxx-abi.github.io/cxx-abi/abi.html#array-ctor
//
//
//===----------------------------------------------------------------------===//
#include "cxxabi.h"
@ -51,27 +51,27 @@ namespace {
class st_heap_block2 {
public:
typedef void (*dealloc_f)(void *);
st_heap_block2 ( dealloc_f dealloc, void *ptr )
st_heap_block2 ( dealloc_f dealloc, void *ptr )
: dealloc_ ( dealloc ), ptr_ ( ptr ), enabled_ ( true ) {}
~st_heap_block2 () { if ( enabled_ ) dealloc_ ( ptr_ ) ; }
void release () { enabled_ = false; }
private:
dealloc_f dealloc_;
void *ptr_;
bool enabled_;
};
class st_heap_block3 {
public:
typedef void (*dealloc_f)(void *, size_t);
st_heap_block3 ( dealloc_f dealloc, void *ptr, size_t size )
st_heap_block3 ( dealloc_f dealloc, void *ptr, size_t size )
: dealloc_ ( dealloc ), ptr_ ( ptr ), size_ ( size ), enabled_ ( true ) {}
~st_heap_block3 () { if ( enabled_ ) dealloc_ ( ptr_, size_ ) ; }
void release () { enabled_ = false; }
private:
dealloc_f dealloc_;
void *ptr_;
@ -82,17 +82,17 @@ namespace {
class st_cxa_cleanup {
public:
typedef void (*destruct_f)(void *);
st_cxa_cleanup ( void *ptr, size_t &idx, size_t element_size, destruct_f destructor )
: ptr_ ( ptr ), idx_ ( idx ), element_size_ ( element_size ),
: ptr_ ( ptr ), idx_ ( idx ), element_size_ ( element_size ),
destructor_ ( destructor ), enabled_ ( true ) {}
~st_cxa_cleanup () {
if ( enabled_ )
if ( enabled_ )
__cxa_vec_cleanup ( ptr_, idx_, element_size_, destructor_ );
}
void release () { enabled_ = false; }
private:
void *ptr_;
size_t &idx_;
@ -100,7 +100,7 @@ namespace {
destruct_f destructor_;
bool enabled_;
};
class st_terminate {
public:
st_terminate ( bool enabled = true ) : enabled_ ( enabled ) {}
@ -164,13 +164,13 @@ size_t calculate_allocation_size_or_throw(size_t element_count,
extern "C" {
// Equivalent to
//
//
// __cxa_vec_new2(element_count, element_size, padding_size, constructor,
// destructor, &::operator new[], &::operator delete[])
_LIBCXXABI_FUNC_VIS void *
__cxa_vec_new(size_t element_count, size_t element_size, size_t padding_size,
void (*constructor)(void *), void (*destructor)(void *)) {
return __cxa_vec_new2 ( element_count, element_size, padding_size,
return __cxa_vec_new2 ( element_count, element_size, padding_size,
constructor, destructor, &::operator new [], &::operator delete [] );
}
@ -180,16 +180,16 @@ __cxa_vec_new(size_t element_count, size_t element_size, size_t padding_size,
// the array preceded by the specified padding, initialize the cookie if
// the padding is non-zero, and call the given constructor on each element.
// Return the address of the array proper, after the padding.
//
//
// If alloc throws an exception, rethrow the exception. If alloc returns
// NULL, return NULL. If the constructor throws an exception, call
// destructor for any already constructed elements, and rethrow the
// exception. If the destructor throws an exception, call std::terminate.
//
//
// The constructor may be NULL, in which case it must not be called. If the
// padding_size is zero, the destructor may be NULL; in that case it must
// not be called.
//
//
// Neither alloc nor dealloc may be NULL.
_LIBCXXABI_FUNC_VIS void *
__cxa_vec_new2(size_t element_count, size_t element_size, size_t padding_size,
@ -208,12 +208,12 @@ __cxa_vec_new2(size_t element_count, size_t element_size, size_t padding_size,
vec_base += padding_size;
__set_element_count ( vec_base, element_count );
}
// Construct the elements
__cxa_vec_ctor ( vec_base, element_count, element_size, constructor, destructor );
heap.release (); // We're good!
}
return vec_base;
}
@ -237,16 +237,16 @@ __cxa_vec_new3(size_t element_count, size_t element_size, size_t padding_size,
vec_base += padding_size;
__set_element_count ( vec_base, element_count );
}
// Construct the elements
__cxa_vec_ctor ( vec_base, element_count, element_size, constructor, destructor );
heap.release (); // We're good!
}
return vec_base;
}
// Given the (data) addresses of a destination and a source array, an
// element count and an element size, call the given copy constructor to
// copy each element from the source array to the destination array. The
@ -266,9 +266,9 @@ _LIBCXXABI_FUNC_VIS void __cxa_vec_cctor(void *dest_array, void *src_array,
size_t idx = 0;
char *src_ptr = static_cast<char *>(src_array);
char *dest_ptr = static_cast<char *>(dest_array);
st_cxa_cleanup cleanup ( dest_array, idx, element_size, destructor );
st_cxa_cleanup cleanup ( dest_array, idx, element_size, destructor );
for ( idx = 0; idx < element_count;
for ( idx = 0; idx < element_count;
++idx, src_ptr += element_size, dest_ptr += element_size )
constructor ( dest_ptr, src_ptr );
cleanup.release (); // We're good!
@ -289,8 +289,8 @@ __cxa_vec_ctor(void *array_address, size_t element_count, size_t element_size,
if ( NULL != constructor ) {
size_t idx;
char *ptr = static_cast <char *> ( array_address );
st_cxa_cleanup cleanup ( array_address, idx, element_size, destructor );
st_cxa_cleanup cleanup ( array_address, idx, element_size, destructor );
// Construct the elements
for ( idx = 0; idx < element_count; ++idx, ptr += element_size )
constructor ( ptr );
@ -311,7 +311,7 @@ _LIBCXXABI_FUNC_VIS void __cxa_vec_dtor(void *array_address,
if ( NULL != destructor ) {
char *ptr = static_cast <char *> (array_address);
size_t idx = element_count;
st_cxa_cleanup cleanup ( array_address, idx, element_size, destructor );
st_cxa_cleanup cleanup ( array_address, idx, element_size, destructor );
{
st_terminate exception_guard (__cxa_uncaught_exception ());
ptr += element_count * element_size; // one past the last element
@ -338,7 +338,7 @@ _LIBCXXABI_FUNC_VIS void __cxa_vec_cleanup(void *array_address,
char *ptr = static_cast <char *> (array_address);
size_t idx = element_count;
st_terminate exception_guard;
ptr += element_count * element_size; // one past the last element
while ( idx-- > 0 ) {
ptr -= element_size;
@ -359,7 +359,7 @@ _LIBCXXABI_FUNC_VIS void __cxa_vec_cleanup(void *array_address,
// throws a second exception, call terminate(). If padding_size is 0, the
// destructor pointer must be NULL. If the destructor pointer is NULL, no
// destructor call is to be made.
//
//
// The intent of this function is to permit an implementation to call this
// function when confronted with an expression of the form delete[] p in
// the source code, provided that the default deallocation function can be
@ -387,9 +387,9 @@ __cxa_vec_delete2(void *array_address, size_t element_size, size_t padding_size,
char *vec_base = static_cast <char *> (array_address);
char *heap_block = vec_base - padding_size;
st_heap_block2 heap ( dealloc, heap_block );
if ( 0 != padding_size && NULL != destructor ) // call the destructors
__cxa_vec_dtor ( array_address, __get_element_count ( vec_base ),
__cxa_vec_dtor ( array_address, __get_element_count ( vec_base ),
element_size, destructor );
}
}