-/* Generated by genlibgcc_compat.py */
+/*
+ * Copyright (C) 2016 The Android Open Source Project
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * * Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in
+ * the documentation and/or other materials provided with the
+ * distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+ * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+ * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+ * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
+ * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
+ * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+ * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
extern char __adddf3;
extern char __addsf3;
--- /dev/null
+/*
+ * Copyright (C) 2016 The Android Open Source Project
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * * Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in
+ * the documentation and/or other materials provided with the
+ * distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+ * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+ * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+ * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
+ * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
+ * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+ * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+extern char __popcountsi2;
+
+void* __bionic_libgcc_compat_symbols[] = {
+ &__popcountsi2,
+};
arch-mips/bionic/bzero.S \
arch-mips/bionic/cacheflush.cpp \
arch-mips/bionic/_exit_with_stack_teardown.S \
+ arch-mips/bionic/libgcc_compat.c \
arch-mips/bionic/setjmp.S \
arch-mips/bionic/syscall.S \
arch-mips/bionic/vfork.S \
-/* Generated by genlibgcc_compat.py */
+/*
+ * Copyright (C) 2016 The Android Open Source Project
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * * Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in
+ * the documentation and/or other materials provided with the
+ * distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+ * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+ * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+ * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
+ * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
+ * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+ * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
extern char __divdi3;
extern char __moddi3;
+++ /dev/null
-#!/usr/bin/python
-
-'''
-/* This file generates libgcc_compat.c file that contains dummy
- * references to libgcc.a functions to force the dynamic linker
- * to copy their definition into the final libc.so binary.
- *
- * They are required to ensure backwards binary compatibility with
- * libc.so provided by the platform and binaries built with the NDK or
- * different versions/configurations of toolchains.
- *
- * Now, for a more elaborate description of the issue:
- *
- * libgcc.a is a compiler-specific library containing various helper
- * functions used to implement certain operations that are not necessarily
- * supported by the target CPU. For example, integer division doesn't have a
- * corresponding CPU instruction on ARMv5, and is instead implemented in the
- * compiler-generated machine code as a call to an __idiv helper function.
- *
- * Normally, one has to place libgcc.a in the link command used to generate
- * target binaries (shared libraries and executables) after all objects and
- * static libraries, but before dependent shared libraries, i.e. something
- * like:
- * gcc <options> -o libfoo.so foo.a libgcc.a -lc -lm
- *
- * This ensures that any helper function needed by the code in foo.a is copied
- * into the final libfoo.so. However, doing so will link a bunch of other __cxa
- * functions from libgcc.a into each .so and executable, causing 4k+ increase
- * in every binary. Therefore the Android platform build system has been
- * using this instead:
- *
- * gcc <options> -o libfoo.so foo.a -lc -lm libgcc.a
- *
- * The problem with this is that if one helper function needed by foo.a has
- * already been copied into libc.so or libm.so, then nothing will be copied
- * into libfoo.so. Instead, a symbol import definition will be added to it
- * so libfoo.so can directly call the one in libc.so at runtime.
- *
- * When refreshing toolchains for new versions or using different architecture
- * flags, the set of helper functions copied to libc.so may change, which
- * resulted in some native shared libraries generated with the NDK or prebuilts
- * from vendors to fail to load properly.
- *
- * The NDK has been fixed after 1.6_r1 to use the correct link command, so
- * any native shared library generated with it should now be safe from that
- * problem. On the other hand, existing shared libraries distributed with
- * applications that were generated with a previous version of the NDK
- * still need all 1.5/1.6 helper functions in libc.so and libm.so
- *
- * After 3.2, the toolchain was updated again, adding __aeabi_f2uiz to the
- * list of requirements. Technically, this is due to mis-linked NDK libraries
- * but it is easier to add a single function here than asking several app
- * developers to fix their build.
- *
- * The __aeabi_idiv function is added to the list since cortex-a15 supports
- * HW idiv instructions so the system libc.so doesn't pull in the reference to
- * __aeabi_idiv but legacy libraries built against cortex-a9 targets still need
- * it.
- *
- * Final note: some of the functions below should really be in libm.so to
- * completely reflect the state of 1.5/1.6 system images. However,
- * since libm.so depends on libc.so, it's easier to put all of
- * these in libc.so instead, since the dynamic linker will always
- * search in libc.so before libm.so for dependencies.
- */
-'''
-
-import os
-import sys
-import subprocess
-import tempfile
-import re
-
-libgcc_compat_header = "/* Generated by genlibgcc_compat.py */\n\n"
-
-class Generator:
- def process(self):
- android_build_top_path = os.environ["ANDROID_BUILD_TOP"]
-
- print "* ANDROID_BUILD_TOP=" + android_build_top_path
-
- # Check TARGET_ARCH
- arch = subprocess.check_output(["CALLED_FROM_SETUP=true BUILD_SYSTEM=build/core make --no-print-directory -f build/core/config.mk dumpvar-TARGET_ARCH"],
- cwd=android_build_top_path, shell=True).strip()
-
- if arch != 'arm' and arch != 'x86':
- sys.exit("Error: Invalid TARGET_ARCH='" + arch + "' expecting 'arm' or 'x86'")
-
- build_path = android_build_top_path + "/bionic/libc"
- file_name = "libgcc_compat.c"
- file_path = build_path + "/arch-" + arch + "/bionic/" + file_name
-
- build_output_file_path = tempfile.mkstemp()[1]
-
- p = subprocess.Popen(["ONE_SHOT_MAKEFILE=bionic/libc/Android.mk make -C " + android_build_top_path
- + " -f build/core/main.mk all_modules TARGET_LIBGCC= -j20 -B 2>&1 | tee " + build_output_file_path],
- cwd=build_path, shell=True)
- p.wait()
-
- print "* Build complete, logfile: " + build_output_file_path
-
- symbol_set = set()
- prog=re.compile("(?<=undefined reference to ')\w+")
- fd = open(build_output_file_path, 'r')
- for line in fd:
- m = prog.search(line)
- if m:
- symbol_set.add(m.group(0))
-
- fd.close()
-
- symbol_list = sorted(symbol_set)
-
- print "* Found " + repr(len(symbol_list)) + " referenced symbols: " + repr(symbol_list)
-
- if 0 == len(symbol_list):
- sys.exit("Error: symbol list is empty, please check the build log: " + build_output_file_path)
-
- print "* Generating " + file_path
- fres = open(file_path, 'w')
- fres.write(libgcc_compat_header)
-
- for sym_name in symbol_list:
- fres.write("extern char "+sym_name+";\n")
- fres.write("\n");
-
- fres.write("void* __bionic_libgcc_compat_symbols[] = {\n");
- for sym_name in symbol_list:
- fres.write(" &"+sym_name+",\n")
- fres.write("};\n");
-
- fres.close()
-
-generator = Generator()
-generator.process()
-
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