crtend is only for llvm-gcc3, remove it.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34529 91177308-0d34-0410-b5e6-96231b3b80d8

11 files changed, 1 insertions, 485 deletions

diff --git a/runtime/GCCLibraries/Makefile b/runtime/GCCLibraries/Makefile
index b976f1248e..e933add6d9 100644
--- a/runtime/GCCLibraries/Makefile
+++ b/runtime/GCCLibraries/Makefile
@@ -8,5 +8,5 @@
 ##===----------------------------------------------------------------------===##
 
 LEVEL := ../..
-PARALLEL_DIRS := crtend libc libgcc libm 
+PARALLEL_DIRS := libc libgcc libm 
 include $(LEVEL)/Makefile.common
diff --git a/runtime/GCCLibraries/crtend/Exception.cpp b/runtime/GCCLibraries/crtend/Exception.cpp
deleted file mode 100644
index d4ac290122..0000000000
--- a/runtime/GCCLibraries/crtend/Exception.cpp
+++ /dev/null
@@ -1,54 +0,0 @@
-//===- Exception.cpp - Generic language-independent exceptions ------------===//
-//
-// This file defines the the shared data structures used by all language
-// specific exception handling runtime libraries.
-//
-//===----------------------------------------------------------------------===//
-
-#include "Exception.h"
-
-// Thread local state for exception handling.  FIXME: This should really be made
-// thread-local!
-
-// UncaughtExceptionStack - The stack of exceptions currently being thrown.
-static llvm_exception *UncaughtExceptionStack = 0;
-
-// __llvm_eh_has_uncaught_exception - This is used to implement
-// std::uncaught_exception.
-//
-bool __llvm_eh_has_uncaught_exception() throw() {
-  return UncaughtExceptionStack != 0;
-}
-
-// __llvm_eh_current_uncaught_exception - This function checks to see if the
-// current uncaught exception is of the specified language type.  If so, it
-// returns a pointer to the exception area data.
-//
-void *__llvm_eh_current_uncaught_exception_type(unsigned HandlerType) throw() {
-  if (UncaughtExceptionStack->ExceptionType == HandlerType)
-    return UncaughtExceptionStack+1;
-  return 0;
-}
-
-// __llvm_eh_add_uncaught_exception - This adds the specified exception to the
-// top of the uncaught exception stack.  The exception should not already be on
-// the stack!
-void __llvm_eh_add_uncaught_exception(llvm_exception *E) throw() {
-  E->Next = UncaughtExceptionStack;
-  UncaughtExceptionStack = E;
-}
-
-
-// __llvm_eh_get_uncaught_exception - Returns the current uncaught exception.
-// There must be an uncaught exception for this to work!
-llvm_exception *__llvm_eh_get_uncaught_exception() throw() {
-  return UncaughtExceptionStack;
-}
-
-// __llvm_eh_pop_from_uncaught_stack - Remove the current uncaught exception
-// from the top of the stack.
-llvm_exception *__llvm_eh_pop_from_uncaught_stack() throw() {
-  llvm_exception *E = __llvm_eh_get_uncaught_exception();
-  UncaughtExceptionStack = E->Next;
-  return E;
-}
diff --git a/runtime/GCCLibraries/crtend/Exception.h b/runtime/GCCLibraries/crtend/Exception.h
deleted file mode 100644
index dc4d3a5f2c..0000000000
--- a/runtime/GCCLibraries/crtend/Exception.h
+++ /dev/null
@@ -1,71 +0,0 @@
-//===- Exception.h - Generic language-independent exceptions ----*- C++ -*-===//
-//
-//                     The LLVM Compiler Infrastructure
-//
-// This file was developed by the LLVM research group and is distributed under
-// the University of Illinois Open Source License. See LICENSE.TXT for details.
-//
-//===----------------------------------------------------------------------===//
-//
-// This file defines the the shared data structures used by all language
-// specific exception handling runtime libraries.
-//
-// NOTE NOTE NOTE: A copy of this file lives in llvmgcc/libstdc++-v3/libsupc++/
-// Any modifications to this file must keep it in sync!
-//
-//===----------------------------------------------------------------------===//
-
-#ifndef EXCEPTION_H
-#define EXCEPTION_H
-
-struct llvm_exception {
-  // ExceptionDestructor - This call-back function is used to destroy the
-  // current exception, without requiring the caller to know what the concrete
-  // exception type is.
-  //
-  void (*ExceptionDestructor)(llvm_exception *);
-
-  // ExceptionType - This field identifies what runtime library this exception
-  // came from.  Currently defined values are:
-  //     0 - Error
-  //     1 - longjmp exception (see longjmp-exception.c)
-  //     2 - C++ exception (see c++-exception.c)
-  //
-  unsigned ExceptionType;
-
-  // Next - This points to the next exception in the current stack.
-  llvm_exception *Next;
-
-  // HandlerCount - This is a count of the number of handlers which have
-  // currently caught this exception.  If the handler is caught and this number
-  // falls to zero, the exception is destroyed.
-  //
-  unsigned HandlerCount;
-
-  // isRethrown - This field is set on an exception if it has been 'throw;'n.
-  // This is needed because the exception might exit through a number of the
-  // end_catch statements matching the number of begin_catch statements that
-  // have been processed.  When this happens, the exception should become
-  // uncaught, not dead.
-  //
-  int isRethrown;
-};
-
-enum {
-  ErrorException = 0,
-  SJLJException  = 1,
-  CXXException   = 2
-};
-
-// Language independent exception handling API...
-//
-extern "C" {
-  bool __llvm_eh_has_uncaught_exception() throw();
-  void *__llvm_eh_current_uncaught_exception_type(unsigned HandlerType) throw();
-  void __llvm_eh_add_uncaught_exception(llvm_exception *E) throw();
-
-  llvm_exception *__llvm_eh_get_uncaught_exception() throw();
-  llvm_exception *__llvm_eh_pop_from_uncaught_stack() throw();
-}
-
-#endif
diff --git a/runtime/GCCLibraries/crtend/Makefile b/runtime/GCCLibraries/crtend/Makefile
deleted file mode 100644
index 1fd3167246..0000000000
--- a/runtime/GCCLibraries/crtend/Makefile
+++ /dev/null
@@ -1,83 +0,0 @@
-##===- runtime/GCCLibraries/crtend/Makefile ----------------*- Makefile -*-===##
-# 
-#                     The LLVM Compiler Infrastructure
-#
-# This file was developed by the LLVM research group and is distributed under
-# the University of Illinois Open Source License. See LICENSE.TXT for details.
-# 
-##===----------------------------------------------------------------------===##
-#
-# This directory contains the C and C++ runtime libraries for the LLVM GCC
-# front-ends.  See the README.txt file for more details.
-#
-# Since this archive has strange requirements, we use some custom rules for 
-# building it.
-#
-##===----------------------------------------------------------------------===##
-
-LEVEL = ../../..
-DONT_BUILD_RELINKED = 1
-LIBRARYNAME = crtend
-BYTECODE_DESTINATION = $(CFERuntimeLibDir)
-
-MainSrc      := crtend.c
-GenericEHSrc := Exception.cpp
-SJLJEHSrc    := SJLJ-Exception.cpp
-
-EXTRA_DIST   := $(MainSrc) $(GenericEHSrc) $(SJLJEHSrc) \
-                comp_main.lst comp_genericeh.lst comp_sjljeh.lst
-
-include $(LEVEL)/Makefile.common
-
-MainObj      := $(ObjDir)/crtend.bc
-GenericEHObj := $(ObjDir)/Exception.bc
-SJLJEHObj    := $(ObjDir)/SJLJ-Exception.bc
-
-# __main and ctor/dtor support component
-$(ObjDir)/comp_main.bc: $(MainObj)
-	$(Echo) Linking $(notdir $@) component...
-	$(Verb) $(GCCLD) -link-as-library \
-	-internalize-public-api-file=$(PROJ_SRC_DIR)/comp_main.lst \
-	$(MainObj) -o $@
-
-# Generic exception handling support runtime.
-$(ObjDir)/comp_genericeh.bc: $(GenericEHObj)
-	$(Echo) Linking $(notdir $@) component...
-	$(Verb) $(GCCLD) -link-as-library \
-	-internalize-public-api-file=$(PROJ_SRC_DIR)/comp_genericeh.lst \
-	$(GenericEHObj) -o $@ 
-
-# setjmp/longjmp exception handling support runtime.
-$(ObjDir)/comp_sjljeh.bc: $(SJLJEHObj)
-	$(Echo) Linking $(notdir $@) component...
-	$(Verb) $(GCCLD) -link-as-library \
-	-internalize-public-api-file=$(PROJ_SRC_DIR)/comp_sjljeh.lst \
-	$(SJLJEHObj) -o $@
-
-SYMBOLHACKEDOBJS := $(ObjDir)/comp_main.bc $(ObjDir)/comp_genericeh.bc \
-                    $(ObjDir)/comp_sjljeh.bc
-
-all-local:: $(LibName.BCA)
-
-ifdef BYTECODE_DESTINATION
-BytecodeDestDir := $(BYTECODE_DESTINATION)
-else
-BytecodeDestDir := $(PROJ_libdir)
-endif
-
-DestBytecodeLib = $(BytecodeDestDir)/lib$(LIBRARYNAME).a
-install-bytecode-local:: $(DestBytecodeLib)
-install-local:: $(DestBytecodeLib)
-
-$(LibName.BCA): $(SYMBOLHACKEDOBJS) $(LibDir)/.dir $(LLVMToolDir)/llvm-ar
-	$(Echo) Building $(BuildMode) Bytecode Archive $(notdir $@)
-	$(Verb) $(RM) -f $@
-	$(Verb) $(LArchive) $@ $(SYMBOLHACKEDOBJS)
-
-$(DestBytecodeLib): $(BytecodeDestDir) $(LibName.BCA) 
-	$(Echo) Installing $(BuildMode) Bytecode Archive $(DestBytecodeLib)
-	$(Verb) $(DataInstall) $(LibName.BCA) $(DestBytecodeLib)
-
-uninstall-local::
-	$(Echo) Uninstalling $(BuildMode) Bytecode Archive $(DestBytecodeLib)
-	-$(Verb) $(RM) -f $(DestBytecodeLib)
diff --git a/runtime/GCCLibraries/crtend/README.txt b/runtime/GCCLibraries/crtend/README.txt
deleted file mode 100644
index a763cb26dd..0000000000
--- a/runtime/GCCLibraries/crtend/README.txt
+++ /dev/null
@@ -1,15 +0,0 @@
-This directory contains the C and C++ runtime libraries for the LLVM GCC
-front-ends.  It is composed of four distinct pieces:
-
-1. __main: now dead, but provided for compatibility.
-
-2. Generic EH support routines.  This is used by C/C++ programs that use
-   setjmp/longjmp, and by C++ programs that make use of exceptions.
-
-3. setjmp/longjmp EH support.  This is used by C/C++ programs that call SJLJ.
-
-4. C++ exception handling runtime support.
-
-These four components are compiled together into an archive file, so that
-applications using a subset of the four do not pull in unnecessary code and
-dependencies.
diff --git a/runtime/GCCLibraries/crtend/SJLJ-Exception.cpp b/runtime/GCCLibraries/crtend/SJLJ-Exception.cpp
deleted file mode 100644
index 6a3e4724ae..0000000000
--- a/runtime/GCCLibraries/crtend/SJLJ-Exception.cpp
+++ /dev/null
@@ -1,146 +0,0 @@
-//===- SJLJ-Exception.cpp - SetJmp/LongJmp Exception Handling -------------===//
-//
-//                     The LLVM Compiler Infrastructure
-//
-// This file was developed by the LLVM research group and is distributed under
-// the University of Illinois Open Source License. See LICENSE.TXT for details.
-//
-//===----------------------------------------------------------------------===//
-//
-// This file implements the API used by the Setjmp/Longjmp exception handling
-// runtime library.
-//
-//===----------------------------------------------------------------------===//
-
-#include "SJLJ-Exception.h"
-#include <cstdlib>
-#include <cassert>
-
-// Assert should only be used for debugging the runtime library.  Enabling it in
-// CVS will break some platforms!
-#undef assert
-#define assert(X)
-
-// get_sjlj_exception - Adjust the llvm_exception pointer to be an appropriate
-// llvm_sjlj_exception pointer.
-inline llvm_sjlj_exception *get_sjlj_exception(llvm_exception *E) {
-  assert(E->ExceptionType == SJLJException);
-  return (llvm_sjlj_exception*)(E+1) - 1;
-}
-
-// SetJmpMapEntry - One entry in a linked list of setjmps for the current
-// function.
-struct SetJmpMapEntry {
-  void *JmpBuf;
-  unsigned SetJmpID;
-  SetJmpMapEntry *Next;
-};
-
-// SJLJDestructor - This function is used to free the exception when
-// language-indent code needs to destroy the exception without knowing exactly
-// what type it is.
-static void SJLJDestructor(llvm_exception *E) {
-  free(get_sjlj_exception(E));
-}
-
-
-// __llvm_sjljeh_throw_longjmp - This function creates the longjmp exception and
-// returns.  It takes care of mapping the longjmp value from 0 -> 1 as
-// appropriate.  The caller should immediately call llvm.unwind after this
-// function call.
-void __llvm_sjljeh_throw_longjmp(void *JmpBuffer, int Val) throw() {
-  llvm_sjlj_exception *E =
-    (llvm_sjlj_exception *)malloc(sizeof(llvm_sjlj_exception));
-  E->BaseException.ExceptionDestructor = SJLJDestructor;
-  E->BaseException.ExceptionType = SJLJException;
-  E->BaseException.HandlerCount = 0;
-  E->BaseException.isRethrown = 0;
-  E->JmpBuffer = JmpBuffer;
-  E->LongJmpValue = Val ? Val : 1;
-
-  __llvm_eh_add_uncaught_exception(&E->BaseException);
-}
-
-// __llvm_sjljeh_init_setjmpmap - This funciton initializes the pointer provided
-// to an empty setjmp map, and should be called on entry to a function which
-// calls setjmp.
-void __llvm_sjljeh_init_setjmpmap(void **SetJmpMap) throw() {
-  *SetJmpMap = 0;
-}
-
-// __llvm_sjljeh_destroy_setjmpmap - This function frees all memory associated
-// with the specified setjmpmap structure.  It should be called on all exits
-// (returns or unwinds) from the function which calls ...init_setjmpmap.
-void __llvm_sjljeh_destroy_setjmpmap(void **SetJmpMap) throw() {
-  SetJmpMapEntry *Next;
-  for (SetJmpMapEntry *SJE = *(SetJmpMapEntry**)SetJmpMap; SJE; SJE = Next) {
-    Next = SJE->Next;
-    free(SJE);
-  }
-}
-
-// __llvm_sjljeh_add_setjmp_to_map - This function adds or updates an entry to
-// the map, to indicate which setjmp should be returned to if a longjmp happens.
-void __llvm_sjljeh_add_setjmp_to_map(void **SetJmpMap, void *JmpBuf,
-                                     unsigned SetJmpID) throw() {
-  SetJmpMapEntry **SJE = (SetJmpMapEntry**)SetJmpMap;
-
-  // Scan for a pre-existing entry...
-  for (; *SJE; SJE = &(*SJE)->Next)
-    if ((*SJE)->JmpBuf == JmpBuf) {
-      (*SJE)->SetJmpID = SetJmpID;
-      return;
-    }
-
-  // No prexisting entry found, append to the end of the list...
-  SetJmpMapEntry *New = (SetJmpMapEntry *)malloc(sizeof(SetJmpMapEntry));
-  *SJE = New;
-  New->JmpBuf = JmpBuf;
-  New->SetJmpID = SetJmpID;
-  New->Next = 0;
-}
-
-// __llvm_sjljeh_is_longjmp_exception - This function returns true if the
-// current uncaught exception is a longjmp exception.  This is the first step of
-// catching a sjlj exception.
-bool __llvm_sjljeh_is_longjmp_exception() throw() {
-  return __llvm_eh_current_uncaught_exception_type(SJLJException) != 0;
-}
-
-// __llvm_sjljeh_get_longjmp_value - This function returns the value that the
-// setjmp call should "return".  This requires that the current uncaught
-// exception be a sjlj exception, though it does not require the exception to be
-// caught by this function.
-int __llvm_sjljeh_get_longjmp_value() throw() {
-  llvm_sjlj_exception *E =
-    get_sjlj_exception(__llvm_eh_get_uncaught_exception());
-  return E->LongJmpValue;
-}
-
-// __llvm_sjljeh_try_catching_longjmp_exception - This function checks to see if
-// the current uncaught longjmp exception matches any of the setjmps collected
-// in the setjmpmap structure.  If so, it catches and destroys the exception,
-// returning the index of the setjmp which caught the exception.  If not, it
-// leaves the exception uncaught and returns a value of ~0.
-unsigned __llvm_sjljeh_try_catching_longjmp_exception(void **SetJmpMap) throw(){
-  llvm_sjlj_exception *E =
-    get_sjlj_exception(__llvm_eh_get_uncaught_exception());
-
-  // Scan for a matching entry in the SetJmpMap...
-  SetJmpMapEntry *SJE = *(SetJmpMapEntry**)SetJmpMap;
-  for (; SJE; SJE = SJE->Next)
-    if (SJE->JmpBuf == E->JmpBuffer) {
-      // "Catch" and destroy the exception...
-      __llvm_eh_pop_from_uncaught_stack();
-
-      // We know it's a longjmp exception, so we can just free it instead of
-      // calling the destructor.
-      free(E);
-
-      // Return the setjmp ID which we should branch to...
-      return SJE->SetJmpID;
-    }
-
-  // No setjmp in this function catches the exception!
-  return ~0;
-}
diff --git a/runtime/GCCLibraries/crtend/SJLJ-Exception.h b/runtime/GCCLibraries/crtend/SJLJ-Exception.h
deleted file mode 100644
index ac27cbed7f..0000000000
--- a/runtime/GCCLibraries/crtend/SJLJ-Exception.h
+++ /dev/null
@@ -1,80 +0,0 @@
-//===- SJLJ-Exception.h - SetJmp/LongJmp Exception Handling -----*- C++ -*-===//
-//
-//                     The LLVM Compiler Infrastructure
-//
-// This file was developed by the LLVM research group and is distributed under
-// the University of Illinois Open Source License. See LICENSE.TXT for details.
-//
-//===----------------------------------------------------------------------===//
-//
-// This file defines the data structures and API used by the Setjmp/Longjmp
-// exception handling runtime library.
-//
-//===----------------------------------------------------------------------===//
-
-#ifndef SJLJ_EXCEPTION_H
-#define SJLJ_EXCEPTION_H
-
-#include "Exception.h"
-
-struct llvm_sjlj_exception {
-  // JmpBuffer - This is the buffer which was longjmp'd with.
-  //
-  void *JmpBuffer;
-
-  // LongJmpValue - The value passed into longjmp, which the corresponding
-  // setjmp should return.  Note that this value will never be equal to 0.
-  //
-  int LongJmpValue;
-
-  // BaseException - The language independent portion of the exception state.
-  // This is at the end of the record so that we can add additional members to
-  // this structure without breaking binary compatibility.
-  //
-  llvm_exception BaseException;
-};
-
-extern "C" {
-  // __llvm_sjljeh_throw_longjmp - This function creates the longjmp exception
-  // and returns.  It takes care of mapping the longjmp value from 0 -> 1 as
-  // appropriate.  The caller should immediately call llvm.unwind after this
-  // function call.
-  void __llvm_sjljeh_throw_longjmp(void *JmpBuffer, int Val) throw();
-
-  // __llvm_sjljeh_init_setjmpmap - This funciton initializes the pointer
-  // provided to an empty setjmp map, and should be called on entry to a
-  // function which calls setjmp.
-  void __llvm_sjljeh_init_setjmpmap(void **SetJmpMap) throw();
-
-  // __llvm_sjljeh_destroy_setjmpmap - This function frees all memory associated
-  // with the specified setjmpmap structure.  It should be called on all exits
-  // (returns or unwinds) from the function which calls ...init_setjmpmap.
-  void __llvm_sjljeh_destroy_setjmpmap(void **SetJmpMap) throw();
-
-  // __llvm_sjljeh_add_setjmp_to_map - This function adds or updates an entry to
-  // the map, to indicate which setjmp should be returned to if a longjmp
-  // happens.
-  void __llvm_sjljeh_add_setjmp_to_map(void **SetJmpMap, void *JmpBuf,
-                                       unsigned SetJmpID) throw();
-
-  // __llvm_sjljeh_is_longjmp_exception - This function returns true if the
-  // current uncaught exception is a longjmp exception.  This is the first step
-  // of catching a sjlj exception.
-  bool __llvm_sjljeh_is_longjmp_exception() throw();
-
-  // __llvm_sjljeh_get_longjmp_value - This function returns the value that the
-  // setjmp call should "return".  This requires that the current uncaught
-  // exception be a sjlj exception, though it does not require the exception to
-  // be caught by this function.
-  int __llvm_sjljeh_get_longjmp_value() throw();
-
-  // __llvm_sjljeh_try_catching_longjmp_exception - This function checks to see
-  // if the current uncaught longjmp exception matches any of the setjmps
-  // collected in the setjmpmap structure.  If so, it catches and destroys the
-  // exception, returning the index of the setjmp which caught the exception.
-  // If not, it leaves the exception uncaught and returns a value of ~0.
-  unsigned __llvm_sjljeh_try_catching_longjmp_exception(void **SetJmpMap)
-    throw();
-}
-
-#endif
diff --git a/runtime/GCCLibraries/crtend/comp_genericeh.lst b/runtime/GCCLibraries/crtend/comp_genericeh.lst
deleted file mode 100644
index 9270648b03..0000000000
--- a/runtime/GCCLibraries/crtend/comp_genericeh.lst
+++ /dev/null
@@ -1,9 +0,0 @@
-__main
-llvm.global_ctors
-llvm.global_dtors
-
-__llvm_eh_has_uncaught_exception
-__llvm_eh_current_uncaught_exception_type
-__llvm_eh_add_uncaught_exception
-__llvm_eh_get_uncaught_exception
-__llvm_eh_pop_from_uncaught_stack
diff --git a/runtime/GCCLibraries/crtend/comp_main.lst b/runtime/GCCLibraries/crtend/comp_main.lst
deleted file mode 100644
index ea953b7f92..0000000000
--- a/runtime/GCCLibraries/crtend/comp_main.lst
+++ /dev/null
@@ -1,3 +0,0 @@
-__main
-llvm.global_ctors
-llvm.global_dtors
diff --git a/runtime/GCCLibraries/crtend/comp_sjljeh.lst b/runtime/GCCLibraries/crtend/comp_sjljeh.lst
deleted file mode 100644
index afcaaf0d05..0000000000
--- a/runtime/GCCLibraries/crtend/comp_sjljeh.lst
+++ /dev/null
@@ -1,7 +0,0 @@
-__llvm_sjljeh_throw_longjmp
-__llvm_sjljeh_init_setjmpmap
-__llvm_sjljeh_destroy_setjmpmap
-__llvm_sjljeh_add_setjmp_to_map
-__llvm_sjljeh_is_longjmp_exception
-__llvm_sjljeh_get_longjmp_value
-__llvm_sjljeh_try_catching_longjmp_exception
diff --git a/runtime/GCCLibraries/crtend/crtend.c b/runtime/GCCLibraries/crtend/crtend.c
deleted file mode 100644
index 561b6fd241..0000000000
--- a/runtime/GCCLibraries/crtend/crtend.c
+++ /dev/null
@@ -1,16 +0,0 @@
-/*===- crtend.c - Initialization code for programs ------------------------===*\
- * 
- *                     The LLVM Compiler Infrastructure
- *
- * This file was developed by the LLVM research group and is distributed under
- * the University of Illinois Open Source License. See LICENSE.TXT for details.
- *
- *===----------------------------------------------------------------------===*
- *
- * This file defines the __main function, which we preserve for backwards 
- * compatibility.
- *
-\*===----------------------------------------------------------------------===*/
-
-void __main(void) {
-}