openwrtv3/toolchain/gcc/patches/5.2.0/850-use_shared_libgcc.patch

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--- a/gcc/config/arm/linux-eabi.h
+++ b/gcc/config/arm/linux-eabi.h
@@ -131,10 +131,6 @@
#define ENDFILE_SPEC \
LINUX_OR_ANDROID_LD (GNU_USER_TARGET_ENDFILE_SPEC, ANDROID_ENDFILE_SPEC)
-/* Use the default LIBGCC_SPEC, not the version in linux-elf.h, as we
- do not use -lfloat. */
-#undef LIBGCC_SPEC
-
/* Clear the instruction cache from `beg' to `end'. This is
implemented in lib1funcs.S, so ensure an error if this definition
is used. */
--- a/gcc/config/linux.h
+++ b/gcc/config/linux.h
@@ -53,6 +53,10 @@ see the files COPYING3 and COPYING.RUNTI
builtin_assert ("system=posix"); \
} while (0)
+#ifndef LIBGCC_SPEC
+#define LIBGCC_SPEC "%{static|static-libgcc:-lgcc}%{!static:%{!static-libgcc:-lgcc_s}}"
+#endif
+
/* Determine which dynamic linker to use depending on whether GLIBC or
uClibc or Bionic or musl is the default C library and whether
-muclibc or -mglibc or -mbionic or -mmusl has been passed to change
--- a/libgcc/mkmap-symver.awk
+++ b/libgcc/mkmap-symver.awk
@@ -132,5 +132,5 @@ function output(lib) {
else if (inherit[lib])
printf("} %s;\n", inherit[lib]);
else
- printf ("\n local:\n\t*;\n};\n");
+ printf ("\n\t*;\n};\n");
}
--- a/gcc/config/rs6000/linux.h
+++ b/gcc/config/rs6000/linux.h
@@ -60,6 +60,9 @@
#undef CPP_OS_DEFAULT_SPEC
#define CPP_OS_DEFAULT_SPEC "%(cpp_os_linux)"
+#undef LIBGCC_SPEC
+#define LIBGCC_SPEC "%{!static:%{!static-libgcc:-lgcc_s}} -lgcc"
+
#undef LINK_SHLIB_SPEC
#define LINK_SHLIB_SPEC "%{shared:-shared} %{!shared: %{static:-static}}"