From 6b2ed6101e4c97691ba3aa94f25895be536b3870 Mon Sep 17 00:00:00 2001 From: Rosen Penev Date: Fri, 26 Feb 2021 20:17:46 -0800 Subject: [PATCH] uclibc++: remove No package here depends on it. Furthermore, uClibc++ is a fairly buggy C++ library and seems to be relatively inactive upstream. It also lacks proper support for modern C++11 features. The main benefit of it is size: 66.6 KB vs 287.3 KB on mips24kc. Static linking and LTO can help bring the size down of packages that need it. Added warning message to uclibc++.mk Signed-off-by: Rosen Penev Acked-by: Hauke Mehrtens --- config/Config-build.in | 14 -- include/uclibc++.mk | 18 +-- package/libs/uclibc++/Makefile | 105 ------------- package/libs/uclibc++/files/config.default | 58 ------- .../libs/uclibc++/patches/001-no-ansi.patch | 10 -- .../patches/002-undef-functions.patch | 35 ----- .../libs/uclibc++/patches/003-no-fPIC.patch | 10 -- ...ibc-Make-long-long-available-to-C-11.patch | 143 ------------------ .../005-istream_helpers-Fix-sscanf-typo.patch | 37 ----- 9 files changed, 2 insertions(+), 428 deletions(-) delete mode 100644 package/libs/uclibc++/Makefile delete mode 100644 package/libs/uclibc++/files/config.default delete mode 100644 package/libs/uclibc++/patches/001-no-ansi.patch delete mode 100644 package/libs/uclibc++/patches/002-undef-functions.patch delete mode 100644 package/libs/uclibc++/patches/003-no-fPIC.patch delete mode 100644 package/libs/uclibc++/patches/004-uClibc-Make-long-long-available-to-C-11.patch delete mode 100644 package/libs/uclibc++/patches/005-istream_helpers-Fix-sscanf-typo.patch diff --git a/config/Config-build.in b/config/Config-build.in index ca6f513450..92ec97aefa 100644 --- a/config/Config-build.in +++ b/config/Config-build.in @@ -217,20 +217,6 @@ menu "Global build settings" make the system libraries incompatible with most of the packages that are not selected during the build process. - choice - prompt "Preferred standard C++ library" - default USE_LIBSTDCXX if USE_GLIBC - default USE_UCLIBCXX - help - Select the preferred standard C++ library for all packages that support this. - - config USE_UCLIBCXX - bool "uClibc++" - - config USE_LIBSTDCXX - bool "libstdc++" - endchoice - comment "Hardening build options" config PKG_CHECK_FORMAT_SECURITY diff --git a/include/uclibc++.mk b/include/uclibc++.mk index a1a61f26d4..10f8d98e15 100644 --- a/include/uclibc++.mk +++ b/include/uclibc++.mk @@ -1,16 +1,2 @@ -ifndef DUMP - ifdef __package_mk - $(error uclibc++.mk must be included before package.mk) - endif -endif - -PKG_PREPARED_DEPENDS += CONFIG_USE_UCLIBCXX -CXX_DEPENDS = +USE_UCLIBCXX:uclibcxx +USE_LIBSTDCXX:libstdcpp - -ifneq ($(CONFIG_USE_UCLIBCXX),) - ifneq ($(CONFIG_CCACHE),) - TARGET_CXX_NOCACHE=g++-uc - else - TARGET_CXX=g++-uc - endif -endif +$(warn uclibc++.mk is deprecated. Please remove it and CXX_DEPENDS) +CXX_DEPENDS = +libstdcpp diff --git a/package/libs/uclibc++/Makefile b/package/libs/uclibc++/Makefile deleted file mode 100644 index 0e3210a5b9..0000000000 --- a/package/libs/uclibc++/Makefile +++ /dev/null @@ -1,105 +0,0 @@ -# -# Copyright (C) 2006-2012 OpenWrt.org -# Copyright (c) 2016 LEDE project -# -# This is free software, licensed under the GNU General Public License v2. -# See /LICENSE for more information. -# - -include $(TOPDIR)/rules.mk - -PKG_NAME:=uclibc++ -PKG_VERSION:=0.2.5 -PKG_RELEASE:=3 - -PKG_SOURCE:=uClibc++-$(PKG_VERSION).tar.xz -PKG_SOURCE_URL:=https://cxx.uclibc.org/src/ -PKG_HASH:=596fb9ed7295564ce4c70ae6076a18f92e72f70310d70c98520bbca85c77895a -PKG_BUILD_DIR:=$(BUILD_DIR)/uClibc++-$(PKG_VERSION) - -PKG_LICENSE:=LGPL-2.1-or-later -PKG_INSTALL:=1 -PKG_BUILD_PARALLEL:=1 -PKG_USE_MIPS16:=0 - -include $(INCLUDE_DIR)/package.mk - -define Package/uclibcxx - NAME:=uclibc++ - SECTION:=libs - CATEGORY:=Libraries - TITLE:=C++ library for embedded systems - URL:=https://cxx.uclibc.org/ -endef - -UCLIBC_TARGET_ARCH:=$(shell echo $(ARCH) | sed -e s'/-.*//' \ - -e 's/i.86/i386/' \ - -e 's/sparc.*/sparc/' \ - -e 's/m68k.*/m68k/' \ - -e 's/ppc/powerpc/g' \ - -e 's/v850.*/v850/g' \ - -e 's/sh64/sh/' \ - -e 's/sh[234].*/sh/' \ - -e 's/mips.*/mips/' \ - -e 's/mipsel.*/mips/' \ -) - -TARGET_CFLAGS += $(FPIC) -nostdinc++ -std=c++11 -TARGET_LDFLAGS += -Wl,--gc-sections - -ifneq ($(CONFIG_CCACHE),) -TARGET_CXX=$(TARGET_CXX_NOCACHE) -endif - -ifeq ($(CONFIG_USE_MUSL),y) -SSP_LIB=-lssp_nonshared -endif - -ifeq (${V}, s) -MAKE_VARS+= \ - V=1 -else ifeq (${V}, sc) -MAKE_VARS+= \ - V=2 -endif - -MAKE_FLAGS:= \ - $(TARGET_CONFIGURE_OPTS) \ - CPU_CFLAGS="$(TARGET_CFLAGS)" \ - CROSS_COMPILE="$(TARGET_CROSS)" \ - LDFLAGS="$(TARGET_LDFLAGS)" \ - GEN_LIBS="-lc $(LIBGCC_S) $(SSP_LIB)" \ - check_as_needed= - -# check_as_needed overrides dependency on libgcc_s - -define Build/Configure - if [ -f ./files/config.$(UCLIBC_TARGET_ARCH) ]; then \ - cp ./files/config.$(UCLIBC_TARGET_ARCH) $(PKG_BUILD_DIR)/.config; \ - else \ - cp ./files/config.default $(PKG_BUILD_DIR)/.config; \ - fi -endef - -define Build/InstallDev - $(INSTALL_DIR) $(2)/bin $(1)/usr/include/uClibc++ $(1)/usr/lib - $(INSTALL_BIN) $(PKG_INSTALL_DIR)/bin/g++-uc $(TOOLCHAIN_DIR)/bin/ - $(CP) $(PKG_INSTALL_DIR)/include/* $(1)/usr/include/uClibc++/ - $(CP) $(PKG_INSTALL_DIR)/lib/libuClibc++*.{a,so}* $(1)/usr/lib/ - $(SED) 's!\(^\|[[:space:]]\)-[IL]$(TOOLCHAIN_DIR)/[^[:space:]]*!!g' $(TOOLCHAIN_DIR)/bin/g++-uc - $(SED) 's|-I/include/|-I$$$${STAGING_DIR:-$(STAGING_DIR)}/usr/include/uClibc++/|g' $(TOOLCHAIN_DIR)/bin/g++-uc - $(SED) 's|-L/lib/|-L$$$${STAGING_DIR:-$(STAGING_DIR)}/lib/|g' $(TOOLCHAIN_DIR)/bin/g++-uc -# add another wrapper which links against both uClibc++ and libstdc++ - $(INSTALL_BIN) $(TOOLCHAIN_DIR)/bin/g++-uc $(TOOLCHAIN_DIR)/bin/g++-uc+std - $(SED) 's|^WRAPPER_INCLUDEDIR=.*||g' $(TOOLCHAIN_DIR)/bin/g++-uc+std - $(SED) 's|-luClibc++|-Wl,-Bdynamic,-luClibc++,-Bstatic,-lstdc++,-Bdynamic|g' $(TOOLCHAIN_DIR)/bin/g++-uc+std - $(SED) 's|-nostdinc++||g' $(TOOLCHAIN_DIR)/bin/g++-uc+std -endef - -define Package/uclibcxx/install - $(INSTALL_DIR) $(1)/usr/lib - $(CP) $(PKG_INSTALL_DIR)/lib/libuClibc++.so.* $(1)/usr/lib/ - $(CP) $(PKG_INSTALL_DIR)/lib/libuClibc++-*.so $(1)/usr/lib/ -endef - -$(eval $(call BuildPackage,uclibcxx)) diff --git a/package/libs/uclibc++/files/config.default b/package/libs/uclibc++/files/config.default deleted file mode 100644 index d76670e969..0000000000 --- a/package/libs/uclibc++/files/config.default +++ /dev/null @@ -1,58 +0,0 @@ -# -# Automatically generated make config: don't edit -# - -# -# Target Features and Options -# -UCLIBCXX_HAS_FLOATS=y -# UCLIBCXX_HAS_LONG_DOUBLE is not set -# UCLIBCXX_HAS_TLS is not set -UCLIBCXX_WARNINGS="" -BUILD_EXTRA_LIBRARIES="" -HAVE_DOT_CONFIG=y - -# -# String and I/O Stream Support -# -UCLIBCXX_HAS_WCHAR=y -UCLIBCXX_IOSTREAM_BUFSIZE=32 -UCLIBCXX_HAS_LFS=y -UCLIBCXX_SUPPORT_CDIR=y -UCLIBCXX_SUPPORT_CIN=y -UCLIBCXX_SUPPORT_COUT=y -UCLIBCXX_SUPPORT_CERR=y -UCLIBCXX_SUPPORT_CLOG=y -# UCLIBCXX_SUPPORT_WCIN is not set -# UCLIBCXX_SUPPORT_WCOUT is not set -# UCLIBCXX_SUPPORT_WCERR is not set -# UCLIBCXX_SUPPORT_WCLOG is not set - -# -# STL and Code Expansion -# -UCLIBCXX_STL_BUFFER_SIZE=32 -UCLIBCXX_CODE_EXPANSION=y -UCLIBCXX_EXPAND_CONSTRUCTORS_DESTRUCTORS=y -UCLIBCXX_EXPAND_STRING_CHAR=y -UCLIBCXX_EXPAND_VECTOR_BASIC=y -UCLIBCXX_EXPAND_IOS_CHAR=y -UCLIBCXX_EXPAND_STREAMBUF_CHAR=y -UCLIBCXX_EXPAND_ISTREAM_CHAR=y -UCLIBCXX_EXPAND_OSTREAM_CHAR=y -UCLIBCXX_EXPAND_FSTREAM_CHAR=y -UCLIBCXX_EXPAND_SSTREAM_CHAR=y - -# -# Library Installation Options -# -UCLIBCXX_RUNTIME_PREFIX="" -UCLIBCXX_RUNTIME_INCLUDE_SUBDIR="/include" -UCLIBCXX_RUNTIME_LIB_SUBDIR="/lib" -UCLIBCXX_RUNTIME_BIN_SUBDIR="/bin" -UCLIBCXX_EXCEPTION_SUPPORT=y -IMPORT_LIBSUP=y -# IMPORT_LIBGCC_EH is not set -BUILD_STATIC_LIB=y -# BUILD_ONLY_STATIC_LIB is not set -# DODEBUG is not set diff --git a/package/libs/uclibc++/patches/001-no-ansi.patch b/package/libs/uclibc++/patches/001-no-ansi.patch deleted file mode 100644 index 7ddbf52f00..0000000000 --- a/package/libs/uclibc++/patches/001-no-ansi.patch +++ /dev/null @@ -1,10 +0,0 @@ ---- a/Rules.mak -+++ b/Rules.mak -@@ -232,7 +232,6 @@ endif - GEN_CXXFLAGS:=-nostdinc++ - GEN_CXXFLAGS+=$(if $(CXXFLAG_-fvisibility-inlines-hidden),-DGCC_HASCLASSVISIBILITY) - CXXFLAGS:=$(CFLAGS) --CFLAGS += -ansi - - LIBGCC:=$(shell $(CC) -print-libgcc-file-name) - LIBGCC_DIR:=$(dir $(LIBGCC)) diff --git a/package/libs/uclibc++/patches/002-undef-functions.patch b/package/libs/uclibc++/patches/002-undef-functions.patch deleted file mode 100644 index 47fa1580f2..0000000000 --- a/package/libs/uclibc++/patches/002-undef-functions.patch +++ /dev/null @@ -1,35 +0,0 @@ -From 8245f62c1e7aba150f666b3c3a1dda646dee6d4b Mon Sep 17 00:00:00 2001 -From: Rosen Penev -Date: Fri, 27 Sep 2019 13:12:44 -0700 -Subject: [PATCH] cstdio: Add undef for four functions - -When compiling with uClibc-ng, these functions get defined as macros and -become unavailable for std. - -Fixes programs that use the std versions of these functions. - -This matches libstdcpp behavior. - -Signed-off-by: Rosen Penev ---- - include/cstdio | 9 +++++++++ - 1 file changed, 9 insertions(+) - ---- a/include/cstdio -+++ b/include/cstdio -@@ -21,6 +21,15 @@ - #ifndef __HEADER_CSTDIO - #define __HEADER_CSTDIO 1 - -+#undef clearerr -+#undef feof -+#undef ferror -+#undef fgetc -+#undef fputc -+#undef getc -+#undef getchar -+#undef putc -+#undef putchar - - namespace std{ - using ::FILE; diff --git a/package/libs/uclibc++/patches/003-no-fPIC.patch b/package/libs/uclibc++/patches/003-no-fPIC.patch deleted file mode 100644 index dfd8833ae4..0000000000 --- a/package/libs/uclibc++/patches/003-no-fPIC.patch +++ /dev/null @@ -1,10 +0,0 @@ ---- a/Rules.mak -+++ b/Rules.mak -@@ -185,7 +185,6 @@ export UCLIBCXX_RUNTIME_PREFIX UCLIBCXX_ - - WRAPPER = $(top_builddir)bin/g++-uc - OPTIMIZATION:= --PICFLAG:=-fPIC - - # use '-Os' optimization if available, else use -O2, allow Config to override - $(eval $(call check-gcc-var,-Os)) diff --git a/package/libs/uclibc++/patches/004-uClibc-Make-long-long-available-to-C-11.patch b/package/libs/uclibc++/patches/004-uClibc-Make-long-long-available-to-C-11.patch deleted file mode 100644 index 6e13f22c8a..0000000000 --- a/package/libs/uclibc++/patches/004-uClibc-Make-long-long-available-to-C-11.patch +++ /dev/null @@ -1,143 +0,0 @@ -From 8151579eb36d9366632242415ff3f5177fa5e1e2 Mon Sep 17 00:00:00 2001 -From: Rosen Penev -Date: Thu, 3 Oct 2019 18:58:43 -0700 -Subject: [PATCH] uClibc++: Make long long available to C++11 - -C++11 makes long long available. It is no longer a GNU extension. - -Signed-off-by: Rosen Penev ---- - include/istream | 4 ++-- - include/istream_helpers | 2 +- - include/ostream | 8 ++++---- - include/ostream_helpers | 8 ++++---- - tests/sstreamtest.cpp | 4 ++-- - 5 files changed, 13 insertions(+), 13 deletions(-) - ---- a/include/istream -+++ b/include/istream -@@ -72,7 +72,7 @@ namespace std{ - basic_istream& operator>>(void*& p); - basic_istream& operator>>(basic_streambuf* sb); - --#ifndef __STRICT_ANSI__ -+#if !defined(__STRICT_ANSI__) || (__cplusplus >= 201103L) - basic_istream& operator>>(long long& n); - basic_istream& operator>>(unsigned long long& n); - #endif -@@ -455,7 +455,7 @@ namespace std{ - return *this; - } - --#ifndef __STRICT_ANSI__ -+#if !defined(__STRICT_ANSI__) || (__cplusplus >= 201103L) - template _UCXXEXPORT basic_istream& - basic_istream::operator>>(long long& n) - { ---- a/include/istream_helpers -+++ b/include/istream_helpers -@@ -301,7 +301,7 @@ namespace std{ - }; - - --#ifndef __STRICT_ANSI__ -+#if !defined(__STRICT_ANSI__) || (__cplusplus >= 201103L) - template class _UCXXEXPORT __istream_readin{ - public: - inline static void readin(basic_istream& stream, long long & var) ---- a/include/ostream -+++ b/include/ostream -@@ -85,7 +85,7 @@ namespace std { - basic_ostream& operator<<(long double f); - basic_ostream& operator<<(void* p); - basic_ostream& operator<<(basic_streambuf* sb); --#ifndef __STRICT_ANSI__ -+#if !defined(__STRICT_ANSI__) || (__cplusplus >= 201103L) - basic_ostream& operator<<(long long n); - basic_ostream& operator<<(unsigned long long n); - #endif -@@ -221,7 +221,7 @@ namespace std { - return *this; - } - --#ifndef __STRICT_ANSI__ -+#if !defined(__STRICT_ANSI__) || (__cplusplus >= 201103L) - template _UCXXEXPORT basic_ostream& basic_ostream::operator<<(long long n) - { - sentry s(*this); -@@ -487,7 +487,7 @@ namespace std { - #endif - - --#ifndef __STRICT_ANSI__ -+#if !defined(__STRICT_ANSI__) || (__cplusplus >= 201103L) - - //Support for output of long long data types - -@@ -509,7 +509,7 @@ template _UCXXEXPORT - } - - --#endif //__STRICT_ANSI__ -+#endif // !defined(__STRICT_ANSI__) || (__cplusplus >= 201103L) - - - ---- a/include/ostream_helpers -+++ b/include/ostream_helpers -@@ -142,7 +142,7 @@ namespace std{ - } - }; - --#ifndef __STRICT_ANSI__ -+#if !defined(__STRICT_ANSI__) || (__cplusplus >= 201103L) - - template class _UCXXEXPORT __ostream_printout{ - public: -@@ -237,7 +237,7 @@ namespace std{ - }; - - --#endif //__STRICT_ANSI__ -+#endif // !defined(__STRICT_ANSI__) || (__cplusplus >= 201103L) - - template class _UCXXEXPORT __ostream_printout{ - public: -@@ -357,7 +357,7 @@ namespace std{ - } - }; - --#ifndef __STRICT_ANSI__ -+#if !defined(__STRICT_ANSI__) || (__cplusplus >= 201103L) - - template class _UCXXEXPORT __ostream_printout{ - public: -@@ -428,7 +428,7 @@ namespace std{ - }; - - --#endif //__STRICT_ANSI__ -+#endif // !defined(__STRICT_ANSI__) || (__cplusplus >= 201103L) - - template class _UCXXEXPORT __ostream_printout{ - public: ---- a/tests/sstreamtest.cpp -+++ b/tests/sstreamtest.cpp -@@ -9,7 +9,7 @@ int main(){ - int i; - std::string s; - char c; --#ifndef __STRICT_ANSI__ -+#if !defined(__STRICT_ANSI__) || (__cplusplus >= 201103L) - long long ll; - unsigned long long ull; - #endif -@@ -32,7 +32,7 @@ int main(){ - - - --#ifndef __STRICT_ANSI__ -+#if !defined(__STRICT_ANSI__) || (__cplusplus >= 201103L) - a.str("678 76 54"); - a >> ll >> ull >> s; - std::cout << "ll (should be 678): " << ll << std::endl; diff --git a/package/libs/uclibc++/patches/005-istream_helpers-Fix-sscanf-typo.patch b/package/libs/uclibc++/patches/005-istream_helpers-Fix-sscanf-typo.patch deleted file mode 100644 index 66b62c197c..0000000000 --- a/package/libs/uclibc++/patches/005-istream_helpers-Fix-sscanf-typo.patch +++ /dev/null @@ -1,37 +0,0 @@ -From 7f6dd860818512c0eb313320308b22ba7e2c7205 Mon Sep 17 00:00:00 2001 -From: Rosen Penev -Date: Fri, 4 Oct 2019 20:06:53 -0700 -Subject: [PATCH] istream_helpers: Fix sscanf typo - -This caused readin not to work properly with long long types. - -Found accidentally through a glibc warning -(declared with warn_unused_result). - -Tested with gptfdisk on OpenWrt. - -Signed-off-by: Rosen Penev ---- - include/istream_helpers | 4 ++-- - 1 file changed, 2 insertions(+), 2 deletions(-) - ---- a/include/istream_helpers -+++ b/include/istream_helpers -@@ -317,7 +317,7 @@ namespace std{ - sscanf(temp.c_str(), "%llo", (unsigned long long *)&var ); - }else if(stream.flags() & ios_base::hex){ - if(stream.flags() & ios_base::uppercase){ -- scanf(temp.c_str(), "%llX", (unsigned long long *)&var ); -+ sscanf(temp.c_str(), "%llX", (unsigned long long *)&var ); - }else{ - sscanf(temp.c_str(), "%llx", (unsigned long long *)&var); - } -@@ -344,7 +344,7 @@ namespace std{ - sscanf(temp.c_str(), "%llo", &var ); - }else if(stream.flags() & ios_base::hex){ - if(stream.flags() & ios_base::uppercase){ -- scanf(temp.c_str(), "%llX", &var ); -+ sscanf(temp.c_str(), "%llX", &var ); - }else{ - sscanf(temp.c_str(), "%llx", &var); - }