build: remove the stub linux SDK

The SDK is insufficient to really build much.  The builtins can be built
standalone now which is what the stub SDK was meant to permit.  Remove the
unnecessary files.

git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@230869 91177308-0d34-0410-b5e6-96231b3b80d8

15 files changed, 0 insertions, 345 deletions

diff --git a/CMakeLists.txt b/CMakeLists.txt
index 94ebfd0c0..c6cd87d9a 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -160,8 +160,6 @@ include(CompilerRTUtils)
 
 set(COMPILER_RT_SOURCE_DIR ${CMAKE_CURRENT_SOURCE_DIR})
 set(COMPILER_RT_BINARY_DIR ${CMAKE_CURRENT_BINARY_DIR})
-# Setup custom SDK sysroots.
-set(COMPILER_RT_LINUX_SDK_SYSROOT ${COMPILER_RT_SOURCE_DIR}/SDKs/linux)
 
 # We support running instrumented tests when we're not cross compiling
 # and target a UNIX-like system or Windows.
diff --git a/SDKs/README.txt b/SDKs/README.txt
deleted file mode 100644
index b95575e8c..000000000
--- a/SDKs/README.txt
+++ /dev/null
@@ -1,9 +0,0 @@
-It is often convenient to be able to build compiler-rt libraries for a certain
-platform without having a full SDK or development environment installed.
-
-This makes it easy for users to build a compiler which can target a number of
-different platforms, without having to actively maintain full development
-environments for those platforms.
-
-Since compiler-rt's libraries typically have minimal interaction with the
-system, we achieve this by stubbing out the SDKs of certain platforms.
diff --git a/SDKs/linux/README.txt b/SDKs/linux/README.txt
deleted file mode 100644
index aa0604af7..000000000
--- a/SDKs/linux/README.txt
+++ /dev/null
@@ -1,2 +0,0 @@
-This is a stub SDK for Linux. Currently, this has only been tested on i386 and
-x86_64 using the Clang compiler.
diff --git a/SDKs/linux/usr/include/endian.h b/SDKs/linux/usr/include/endian.h
deleted file mode 100644
index 95528db15..000000000
--- a/SDKs/linux/usr/include/endian.h
+++ /dev/null
@@ -1,29 +0,0 @@
-/* ===-- endian.h - stub SDK header for compiler-rt -------------------------===
- *
- *                     The LLVM Compiler Infrastructure
- *
- * This file is dual licensed under the MIT and the University of Illinois Open
- * Source Licenses. See LICENSE.TXT for details.
- *
- * ===-----------------------------------------------------------------------===
- *
- * This is a stub SDK header file. This file is not part of the interface of
- * this library nor an official version of the appropriate SDK header. It is
- * intended only to stub the features of this header required by compiler-rt.
- *
- * ===-----------------------------------------------------------------------===
- */
-
-#ifndef __ENDIAN_H__
-#define __ENDIAN_H__
-
-#define __LITTLE_ENDIAN 1234
-#define __BIG_ENDIAN 4321
-
-#if defined(__LITTLE_ENDIAN__) || defined(__ORDER_LITTLE_ENDIAN__)
-#define __BYTE_ORDER __LITTLE_ENDIAN
-#else
-#define __BYTE_ORDER __BIG_ENDIAN
-#endif
-
-#endif /* __ENDIAN_H__ */
diff --git a/SDKs/linux/usr/include/fcntl.h b/SDKs/linux/usr/include/fcntl.h
deleted file mode 100644
index a5f91e3a5..000000000
--- a/SDKs/linux/usr/include/fcntl.h
+++ /dev/null
@@ -1,17 +0,0 @@
-/* ===-- fcntl.h - stub SDK header for compiler-rt --------------------------===
- *
- *                     The LLVM Compiler Infrastructure
- *
- * This file is dual licensed under the MIT and the University of Illinois Open
- * Source Licenses. See LICENSE.TXT for details.
- *
- * ===-----------------------------------------------------------------------===
- *
- * This is a stub SDK header file. This file is not part of the interface of
- * this library nor an official version of the appropriate SDK header. It is
- * intended only to stub the features of this header required by compiler-rt.
- *
- * ===-----------------------------------------------------------------------===
- */
-
-#include <sys/fcntl.h>
diff --git a/SDKs/linux/usr/include/limits.h b/SDKs/linux/usr/include/limits.h
deleted file mode 100644
index 5495a784f..000000000
--- a/SDKs/linux/usr/include/limits.h
+++ /dev/null
@@ -1,23 +0,0 @@
-/* ===-- limits.h - stub SDK header for compiler-rt -------------------------===
- *
- *                     The LLVM Compiler Infrastructure
- *
- * This file is dual licensed under the MIT and the University of Illinois Open
- * Source Licenses. See LICENSE.TXT for details.
- *
- * ===-----------------------------------------------------------------------===
- *
- * This is a stub SDK header file. This file is not part of the interface of
- * this library nor an official version of the appropriate SDK header. It is
- * intended only to stub the features of this header required by compiler-rt.
- *
- * ===-----------------------------------------------------------------------===
- */
-
-#ifndef __LIMITS_H__
-#define __LIMITS_H__
-
-/* This is only here as a landing pad for the include_next from the compiler's
-   built-in limits.h. */
-
-#endif /* __LIMITS_H__ */
diff --git a/SDKs/linux/usr/include/stdio.h b/SDKs/linux/usr/include/stdio.h
deleted file mode 100644
index e2161daa4..000000000
--- a/SDKs/linux/usr/include/stdio.h
+++ /dev/null
@@ -1,44 +0,0 @@
-/* ===-- stdio.h - stub SDK header for compiler-rt --------------------------===
- *
- *                     The LLVM Compiler Infrastructure
- *
- * This file is dual licensed under the MIT and the University of Illinois Open
- * Source Licenses. See LICENSE.TXT for details.
- *
- * ===-----------------------------------------------------------------------===
- *
- * This is a stub SDK header file. This file is not part of the interface of
- * this library nor an official version of the appropriate SDK header. It is
- * intended only to stub the features of this header required by compiler-rt.
- *
- * ===-----------------------------------------------------------------------===
- */
-
-#ifndef __STDIO_H__
-#define __STDIO_H__
-
-typedef __SIZE_TYPE__ size_t;
-
-struct _IO_FILE;
-typedef struct _IO_FILE FILE;
-
-extern struct _IO_FILE *stdin;
-extern struct _IO_FILE *stdout;
-extern struct _IO_FILE *stderr;
-
-#define	SEEK_SET	0	/* set file offset to offset */
-#define	SEEK_CUR	1	/* set file offset to current plus offset */
-#define	SEEK_END	2	/* set file offset to EOF plus offset */
-
-extern int fclose(FILE *);
-extern int fflush(FILE *);
-extern FILE *fopen(const char * restrict, const char * restrict);
-extern FILE *fdopen(int, const char * restrict);
-extern int fprintf(FILE * restrict, const char * restrict, ...);
-extern int fputc(int, FILE *);
-extern size_t fwrite(const void * restrict, size_t, size_t, FILE * restrict);
-extern size_t fread(void * restrict, size_t, size_t, FILE * restrict);
-extern long ftell(FILE *);
-extern int fseek(FILE *, long, int);
-
-#endif /* __STDIO_H__ */
diff --git a/SDKs/linux/usr/include/stdlib.h b/SDKs/linux/usr/include/stdlib.h
deleted file mode 100644
index 966b29db6..000000000
--- a/SDKs/linux/usr/include/stdlib.h
+++ /dev/null
@@ -1,36 +0,0 @@
-/* ===-- stdlib.h - stub SDK header for compiler-rt -------------------------===
- *
- *                     The LLVM Compiler Infrastructure
- *
- * This file is dual licensed under the MIT and the University of Illinois Open
- * Source Licenses. See LICENSE.TXT for details.
- *
- * ===-----------------------------------------------------------------------===
- *
- * This is a stub SDK header file. This file is not part of the interface of
- * this library nor an official version of the appropriate SDK header. It is
- * intended only to stub the features of this header required by compiler-rt.
- *
- * ===-----------------------------------------------------------------------===
- */
-
-#ifndef __STDLIB_H__
-#define __STDLIB_H__
-
-#define NULL ((void *)0)
-
-typedef __SIZE_TYPE__ size_t;
-
-void abort(void) __attribute__((__nothrow__)) __attribute__((__noreturn__));
-int atexit(void (*)(void)) __attribute__((__nothrow__));
-int atoi(const char *) __attribute__((__nothrow__));
-void free(void *) __attribute__((__nothrow__));
-char *getenv(const char *) __attribute__((__nothrow__))
-  __attribute__((__nonnull__(1)));
-  __attribute__((__warn_unused_result__));
-void *malloc(size_t) __attribute__((__nothrow__)) __attribute((__malloc__))
-     __attribute__((__warn_unused_result__));
-void *realloc(void *, size_t) __attribute__((__nothrow__)) __attribute((__malloc__))
-     __attribute__((__warn_unused_result__));
-
-#endif /* __STDLIB_H__ */
diff --git a/SDKs/linux/usr/include/string.h b/SDKs/linux/usr/include/string.h
deleted file mode 100644
index c7da1f57b..000000000
--- a/SDKs/linux/usr/include/string.h
+++ /dev/null
@@ -1,31 +0,0 @@
-/* ===-- string.h - stub SDK header for compiler-rt -------------------------===
- *
- *                     The LLVM Compiler Infrastructure
- *
- * This file is dual licensed under the MIT and the University of Illinois Open
- * Source Licenses. See LICENSE.TXT for details.
- *
- * ===-----------------------------------------------------------------------===
- *
- * This is a stub SDK header file. This file is not part of the interface of
- * this library nor an official version of the appropriate SDK header. It is
- * intended only to stub the features of this header required by compiler-rt.
- *
- * ===-----------------------------------------------------------------------===
- */
-
-#ifndef __STRING_H__
-#define __STRING_H__
-
-typedef __SIZE_TYPE__ size_t;
-
-int memcmp(const void *, const void *, size_t);
-void *memcpy(void *, const void *, size_t);
-void *memset(void *, int, size_t);
-char *strcat(char *, const char *);
-char *strcpy(char *, const char *);
-char *strdup(const char *);
-size_t strlen(const char *);
-char *strncpy(char *, const char *, size_t);
-
-#endif /* __STRING_H__ */
diff --git a/SDKs/linux/usr/include/sys/fcntl.h b/SDKs/linux/usr/include/sys/fcntl.h
deleted file mode 100644
index 1512bf9b4..000000000
--- a/SDKs/linux/usr/include/sys/fcntl.h
+++ /dev/null
@@ -1,29 +0,0 @@
-/* ===-- fcntl.h - stub SDK header for compiler-rt --------------------------===
- *
- *                     The LLVM Compiler Infrastructure
- *
- * This file is dual licensed under the MIT and the University of Illinois Open
- * Source Licenses. See LICENSE.TXT for details.
- *
- * ===-----------------------------------------------------------------------===
- *
- * This is a stub SDK header file. This file is not part of the interface of
- * this library nor an official version of the appropriate SDK header. It is
- * intended only to stub the features of this header required by compiler-rt.
- *
- * ===-----------------------------------------------------------------------===
- */
-
-#ifndef _SYS_FCNTL_H_
-#define _SYS_FCNTL_H_
-
-#define O_RDONLY   0x0000
-#define O_WRONLY   0x0001
-#define O_RDWR     0x0002
-#define O_ACCMODE  0x0003
-
-#define O_CREAT    0x0200
-
-int open(const char *, int, ...);
-
-#endif /* _SYS_FCNTL_H_ */
diff --git a/SDKs/linux/usr/include/sys/mman.h b/SDKs/linux/usr/include/sys/mman.h
deleted file mode 100644
index bfb7f8bb0..000000000
--- a/SDKs/linux/usr/include/sys/mman.h
+++ /dev/null
@@ -1,47 +0,0 @@
-/* ===-- limits.h - stub SDK header for compiler-rt -------------------------===
- *
- *                     The LLVM Compiler Infrastructure
- *
- * This file is dual licensed under the MIT and the University of Illinois Open
- * Source Licenses. See LICENSE.TXT for details.
- *
- * ===-----------------------------------------------------------------------===
- *
- * This is a stub SDK header file. This file is not part of the interface of
- * this library nor an official version of the appropriate SDK header. It is
- * intended only to stub the features of this header required by compiler-rt.
- *
- * ===-----------------------------------------------------------------------===
- */
-
-#ifndef __SYS_MMAN_H__
-#define __SYS_MMAN_H__
-
-typedef __SIZE_TYPE__ size_t;
-
-#define PROT_NONE     0x00
-#define PROT_READ     0x01
-#define PROT_WRITE    0x02
-#define PROT_EXEC     0x04
-
-#define MAP_SHARED    0x0001
-#define MAP_PRIVATE   0x0002
-
-#define MAP_FILE      0x0000
-#define MAP_ANON      0x1000
-
-#define MS_ASYNC      0x0001
-#define MS_INVALIDATE 0x0002
-#define MS_SYNC       0x0010
-
-extern void *mmap(void *addr, size_t len, int prot, int flags, int fd,
-                  long long offset)
-  __attribute__((__nothrow__));
-extern int munmap(void *addr, size_t len)
-  __attribute__((__nothrow__));
-extern int msync(void *addr, size_t len, int flags)
-  __attribute__((__nothrow__));
-extern int mprotect (void *__addr, size_t __len, int __prot)
-  __attribute__((__nothrow__));
-
-#endif /* __SYS_MMAN_H__ */
diff --git a/SDKs/linux/usr/include/sys/stat.h b/SDKs/linux/usr/include/sys/stat.h
deleted file mode 100644
index 0449fddb0..000000000
--- a/SDKs/linux/usr/include/sys/stat.h
+++ /dev/null
@@ -1,24 +0,0 @@
-/* ===-- stat.h - stub SDK header for compiler-rt ---------------------------===
- *
- *                     The LLVM Compiler Infrastructure
- *
- * This file is dual licensed under the MIT and the University of Illinois Open
- * Source Licenses. See LICENSE.TXT for details.
- *
- * ===-----------------------------------------------------------------------===
- *
- * This is a stub SDK header file. This file is not part of the interface of
- * this library nor an official version of the appropriate SDK header. It is
- * intended only to stub the features of this header required by compiler-rt.
- *
- * ===-----------------------------------------------------------------------===
- */
-
-#ifndef __SYS_STAT_H__
-#define __SYS_STAT_H__
-
-typedef unsigned int mode_t;
-
-int mkdir(const char *, mode_t);
-
-#endif /* __SYS_STAT_H__ */
diff --git a/SDKs/linux/usr/include/sys/types.h b/SDKs/linux/usr/include/sys/types.h
deleted file mode 100644
index 10e74bbd0..000000000
--- a/SDKs/linux/usr/include/sys/types.h
+++ /dev/null
@@ -1,20 +0,0 @@
-/* ===-- stat.h - stub SDK header for compiler-rt ---------------------------===
- *
- *                     The LLVM Compiler Infrastructure
- *
- * This file is dual licensed under the MIT and the University of Illinois Open
- * Source Licenses. See LICENSE.TXT for details.
- *
- * ===-----------------------------------------------------------------------===
- *
- * This is a stub SDK header file. This file is not part of the interface of
- * this library nor an official version of the appropriate SDK header. It is
- * intended only to stub the features of this header required by compiler-rt.
- *
- * ===-----------------------------------------------------------------------===
- */
-
-#ifndef __SYS_TYPES_H__
-#define __SYS_TYPES_H__
-
-#endif /* __SYS_TYPES_H__ */
diff --git a/SDKs/linux/usr/include/unistd.h b/SDKs/linux/usr/include/unistd.h
deleted file mode 100644
index 773b081d4..000000000
--- a/SDKs/linux/usr/include/unistd.h
+++ /dev/null
@@ -1,26 +0,0 @@
-/* ===-- unistd.h - stub SDK header for compiler-rt -------------------------===
- *
- *                     The LLVM Compiler Infrastructure
- *
- * This file is dual licensed under the MIT and the University of Illinois Open
- * Source Licenses. See LICENSE.TXT for details.
- *
- * ===-----------------------------------------------------------------------===
- *
- * This is a stub SDK header file. This file is not part of the interface of
- * this library nor an official version of the appropriate SDK header. It is
- * intended only to stub the features of this header required by compiler-rt.
- *
- * ===-----------------------------------------------------------------------===
- */
-
-#ifndef __UNISTD_H__
-#define __UNISTD_H__
-
-enum {
-  _SC_PAGESIZE = 30
-};
-
-extern long int sysconf (int __name) __attribute__ ((__nothrow__));
-
-#endif /* __UNISTD_H__ */
diff --git a/make/platform/clang_linux.mk b/make/platform/clang_linux.mk
index cb023f3db..4585cd969 100644
--- a/make/platform/clang_linux.mk
+++ b/make/platform/clang_linux.mk
@@ -74,12 +74,6 @@ CFLAGS.builtins-x86_64 := $(CFLAGS) -m64
 CFLAGS.profile-i386 := $(CFLAGS) -m32
 CFLAGS.profile-x86_64 := $(CFLAGS) -m64
 
-# Use our stub SDK as the sysroot to support more portable building. For now we
-# just do this for the core module, because the stub SDK doesn't have
-# enough support to build the profile runtime.
-CFLAGS.builtins-i386 += --sysroot=$(ProjSrcRoot)/SDKs/linux
-CFLAGS.builtins-x86_64 += --sysroot=$(ProjSrcRoot)/SDKs/linux
-
 FUNCTIONS.builtins-i386 := $(CommonFunctions) $(ArchFunctions.i386)
 FUNCTIONS.builtins-x86_64 := $(CommonFunctions) $(ArchFunctions.x86_64)
 FUNCTIONS.profile-i386 := GCDAProfiling InstrProfiling InstrProfilingBuffer \