mirror of https://github.com/hak5/openwrt.git
uClibc++: Update to 0.2.5
Switched to xz archives for smaller size. Removed upstreamed patches. Reorganized Makefile a little bit for clarity. Build/Prepare is not useful anymore. Upstream converted the file to LF. Refreshed config. Removed -ansi option from the original CFLAGS as this was causing long long support to be missing. Removed fPIC. We have the macro $(FPIC) already used. No point in setting fpic and fPIC together. Removed pedantic -Wlong-long warnings as they are not useful. Removed -std=gnu++98. Not only is it unnecessary (it compiles against all standards), it actually results in a size increase. 75843 vs. 75222 (gcc in OpenWrt defaults to g++14). Added --gc-sections to linker flags to reduce size: 72653 vs 75222. Removed warn linker options. They have been upstreamed. Tested on Archer C7v2 and GnuBee PC1. Signed-off-by: Rosen Penev <rosenp@gmail.com>openwrt-19.07
Rosen Penev
Hauke Mehrtens
parent
e49b6bb618
commit
0b26382533
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@ -9,12 +9,12 @@
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include $(TOPDIR)/rules.mk
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PKG_NAME:=uclibc++
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PKG_VERSION:=0.2.4
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PKG_RELEASE:=3
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PKG_VERSION:=0.2.5
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PKG_RELEASE:=1
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PKG_SOURCE:=uClibc++-$(PKG_VERSION).tar.bz2
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PKG_SOURCE_URL:=http://cxx.uclibc.org/src/
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PKG_HASH:=be16fc6a6eb2e59df420ee41e7042f38e27ebaf5c2762d90e75803364a7b00db
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PKG_SOURCE:=uClibc++-$(PKG_VERSION).tar.xz
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PKG_SOURCE_URL:=https://cxx.uclibc.org/src/
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PKG_HASH:=596fb9ed7295564ce4c70ae6076a18f92e72f70310d70c98520bbca85c77895a
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PKG_BUILD_DIR:=$(BUILD_DIR)/uClibc++-$(PKG_VERSION)
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PKG_BUILD_PARALLEL:=1
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@ -30,7 +30,7 @@ define Package/uclibcxx
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SECTION:=libs
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CATEGORY:=Libraries
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TITLE:=C++ library for embedded systems
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URL:=http://cxx.uclibc.org/src/
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URL:=https://cxx.uclibc.org/
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endef
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UCLIBC_TARGET_ARCH:=$(shell echo $(ARCH) | sed -e s'/-.*//' \
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@ -45,7 +45,8 @@ UCLIBC_TARGET_ARCH:=$(shell echo $(ARCH) | sed -e s'/-.*//' \
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-e 's/mipsel.*/mips/' \
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)
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TARGET_CFLAGS += $(FPIC)
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TARGET_CFLAGS += $(FPIC) -nostdinc++
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TARGET_LDFLAGS += -Wl,--gc-sections
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ifneq ($(CONFIG_CCACHE),)
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TARGET_CXX=$(TARGET_CXX_NOCACHE)
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@ -56,24 +57,15 @@ SSP_LIB=-lssp_nonshared
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endif
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MAKE_FLAGS:= \
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TOPDIR="$(PKG_BUILD_DIR)/" \
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$(TARGET_CONFIGURE_OPTS) \
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CPU_CFLAGS="$(TARGET_CFLAGS)" \
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CROSS="$(TARGET_CROSS)" \
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LDFLAGS="-Wl,--warn-common -Wl,--warn-once -Wl,-z,combreloc -Wl,-z,defs $(TARGET_LDFLAGS)" \
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CP="$(CP)" \
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CROSS_COMPILE="$(TARGET_CROSS)" \
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LDFLAGS="$(TARGET_LDFLAGS)" \
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GEN_LIBS="-lc $(LIBGCC_S) $(SSP_LIB)" \
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GEN_CFLAGS="-std=gnu++98 -nostdinc++" \
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check_as_needed=
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# check_as_needed overrides dependency on libgcc_s
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define Build/Prepare
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$(PKG_UNPACK)
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$(SED) 's/\r$$$$//' $(PKG_BUILD_DIR)/include/unwind-cxx.h
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$(Build/Patch)
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endef
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define Build/Configure
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if [ -f ./files/config.$(UCLIBC_TARGET_ARCH) ]; then \
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cp ./files/config.$(UCLIBC_TARGET_ARCH) $(PKG_BUILD_DIR)/.config; \
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@ -8,7 +8,7 @@
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UCLIBCXX_HAS_FLOATS=y
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# UCLIBCXX_HAS_LONG_DOUBLE is not set
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# UCLIBCXX_HAS_TLS is not set
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WARNINGS="-Wall"
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UCLIBCXX_WARNINGS=""
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BUILD_EXTRA_LIBRARIES=""
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HAVE_DOT_CONFIG=y
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@ -23,10 +23,10 @@ UCLIBCXX_SUPPORT_CIN=y
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UCLIBCXX_SUPPORT_COUT=y
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UCLIBCXX_SUPPORT_CERR=y
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UCLIBCXX_SUPPORT_CLOG=y
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UCLIBCXX_SUPPORT_WCIN=y
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UCLIBCXX_SUPPORT_WCOUT=y
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UCLIBCXX_SUPPORT_WCERR=y
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UCLIBCXX_SUPPORT_WCLOG=y
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# UCLIBCXX_SUPPORT_WCIN is not set
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# UCLIBCXX_SUPPORT_WCOUT is not set
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# UCLIBCXX_SUPPORT_WCERR is not set
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# UCLIBCXX_SUPPORT_WCLOG is not set
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#
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# STL and Code Expansion
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@ -0,0 +1,10 @@
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--- a/Rules.mak
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+++ b/Rules.mak
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@@ -232,7 +232,6 @@ endif
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GEN_CXXFLAGS:=-nostdinc++
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GEN_CXXFLAGS+=$(if $(CXXFLAG_-fvisibility-inlines-hidden),-DGCC_HASCLASSVISIBILITY)
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CXXFLAGS:=$(CFLAGS)
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-CFLAGS += -ansi
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LIBGCC:=$(shell $(CC) -print-libgcc-file-name)
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LIBGCC_DIR:=$(dir $(LIBGCC))
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@ -1,11 +0,0 @@
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--- a/bin/Makefile
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+++ b/bin/Makefile
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@@ -13,7 +13,7 @@ install:
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$(INSTALL) -m 755 $(WRAPPER) $(PREFIX)$(UCLIBCXX_RUNTIME_BINDIR)
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$(WRAPPER): Makefile
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- echo '#!/bin/sh' > $@
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+ echo '#!/usr/bin/env bash' > $@
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echo '' >> $@
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echo 'WRAPPER_INCLUDEDIR="$${WRAPPER_INCLUDEDIR:=-I$(UCLIBCXX_RUNTIME_INCLUDEDIR)}"' >> $@
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echo 'WRAPPER_LIBDIR="$${WRAPPER_LIBDIR:=-L$(UCLIBCXX_RUNTIME_LIBDIR)}"' >> $@
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@ -0,0 +1,13 @@
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--- a/bin/Makefile.in
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+++ b/bin/Makefile.in
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@@ -44,8 +44,8 @@ define do_wrapper
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$(Q)echo ' WRAPPER_OPTIONS="$$WRAPPER_OPTIONS -nodefaultlibs $$WRAPPER_LIBDIR -l$(LNAME) $$WRAPPER_LIBS"' >> $@.tmp
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$(Q)echo 'fi' >> $@.tmp
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$(Q)echo '' >> $@.tmp
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- $(Q)echo '[ -n "$$V" ] && [ $$V -gt 1 ] && echo $(CXX) $(GEN_CFLAGS) $(GEN_CXXFLAGS) $(EH_CXXFLAGS) $$WRAPPER_INCLUDEDIR "$$@" $$WRAPPER_OPTIONS' >> $@.tmp
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- $(Q)echo 'exec $(CXX) $(GEN_CFLAGS) $(GEN_CXXFLAGS) $(EH_CXXFLAGS) $$WRAPPER_INCLUDEDIR "$$@" $$WRAPPER_OPTIONS' >> $@.tmp
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+ $(Q)echo '[ -n "$$V" ] && [ $$V -gt 1 ] && echo $(CXX) $(GEN_CFLAGS) $(GEN_CXXFLAGS) $(EH_CXXFLAGS) $$WRAPPER_INCLUDEDIR $$@ $$WRAPPER_OPTIONS' >> $@.tmp
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+ $(Q)echo 'exec $(CXX) $(GEN_CFLAGS) $(GEN_CXXFLAGS) $(EH_CXXFLAGS) $$WRAPPER_INCLUDEDIR $$@ $$WRAPPER_OPTIONS' >> $@.tmp
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$(Q)echo '' >> $@.tmp
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$(Q)chmod 0755 $@.tmp
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$(Q)mv $@.tmp $@
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@ -0,0 +1,10 @@
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--- a/Rules.mak
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+++ b/Rules.mak
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@@ -185,7 +185,6 @@ export UCLIBCXX_RUNTIME_PREFIX UCLIBCXX_RUNTIME_LIBDIR UCLIBCXX_RUNTIME_BINDIR U
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WRAPPER = $(top_builddir)bin/g++-uc
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OPTIMIZATION:=
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-PICFLAG:=-fPIC
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# use '-Os' optimization if available, else use -O2, allow Config to override
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$(eval $(call check-gcc-var,-Os))
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@ -0,0 +1,13 @@
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--- a/Rules.mak
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+++ b/Rules.mak
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@@ -200,10 +200,6 @@ $(eval $(call check-gxx-var,-std=gnu++14))
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$(eval $(call check-gxx-var,-Wno-sized-deallocation))
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$(eval $(call check-gxx-var,-Wno-tautological-compare))
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-# Add a bunch of extra pedantic annoyingly strict checks
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-XWARNINGS=$(call qstrip,$(UCLIBCXX_WARNINGS)) -Wno-trigraphs -pedantic
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-CPU_CFLAGS=$(call qstrip,$(CPU_CFLAGS-y))
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-
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# Some nice CFLAGS to work with
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GEN_CFLAGS:=-fno-builtin
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CFLAGS:=$(XWARNINGS) $(CPU_CFLAGS)
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@ -1,38 +0,0 @@
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--- a/include/typeinfo
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+++ b/include/typeinfo
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@@ -44,6 +44,7 @@ namespace __cxxabiv1
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class __class_type_info;
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} // namespace __cxxabiv1
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+#ifndef __GXX_MERGED_TYPEINFO_NAMES
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#if !__GXX_WEAK__
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// If weak symbols are not supported, typeinfo names are not merged.
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#define __GXX_MERGED_TYPEINFO_NAMES 0
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@@ -51,6 +52,7 @@ namespace __cxxabiv1
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// On platforms that support weak symbols, typeinfo names are merged.
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#define __GXX_MERGED_TYPEINFO_NAMES 1
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#endif
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+#endif
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namespace std
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{
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--- a/include/unwind-cxx.h
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+++ b/include/unwind-cxx.h
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@@ -173,6 +173,7 @@ extern std::unexpected_handler __unexpec
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// This is the exception class we report -- "GNUCC++\0".
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const _Unwind_Exception_Class __gxx_exception_class
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+#ifndef __ARM_EABI_UNWINDER__
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= ((((((((_Unwind_Exception_Class) 'G'
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<< 8 | (_Unwind_Exception_Class) 'N')
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<< 8 | (_Unwind_Exception_Class) 'U')
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@@ -181,6 +182,9 @@ const _Unwind_Exception_Class __gxx_exce
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<< 8 | (_Unwind_Exception_Class) '+')
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<< 8 | (_Unwind_Exception_Class) '+')
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<< 8 | (_Unwind_Exception_Class) '\0');
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+#else
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+= "GNUC++";
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+#endif
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// GNU C++ personality routine, Version 0.
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extern "C" _Unwind_Reason_Code __gxx_personality_v0
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@ -1,23 +0,0 @@
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--- a/src/Makefile
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+++ b/src/Makefile
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@@ -3,9 +3,9 @@ include $(TOPDIR)Rules.mak
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WR_CXX := WRAPPER_INCLUDEDIR=-I$(TOPDIR)include $(TOPDIR)bin/g++-uc
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-LDFLAGS += -nodefaultlibs -shared -Wl,-soname,$(SHARED_MAJORNAME) $(BUILD_EXTRA_LIBRARIES)
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+EXTRA_LDFLAGS += -nodefaultlibs -shared -Wl,-soname,$(SHARED_MAJORNAME) $(BUILD_EXTRA_LIBRARIES)
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ifneq ($(DODEBUG),y)
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-LDFLAGS += -Wl,-s
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+EXTRA_LDFLAGS += -Wl,-s
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endif
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SRCS = $(wildcard *.cpp)
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@@ -60,7 +60,7 @@ $(LIBNAME).a: libgcc_eh libsupc $(EXOBJS
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$(RANLIB) $@
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$(SHARED_FULLNAME): libgcc_eh libsupc $(EXOBJS)
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- $(CC) $(LDFLAGS) -o $@ $(EXOBJS) $(SUPOBJS) $(GCCOBJS) $(LIBS)
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+ $(CC) $(LDFLAGS) $(EXTRA_LDFLAGS) -o $@ $(EXOBJS) $(SUPOBJS) $(GCCOBJS) $(LIBS)
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$(LN) $@ $(SHARED_MAJORNAME)
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$(LN) $(SHARED_MAJORNAME) $(LIBNAME).so
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@ -1,22 +0,0 @@
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--- a/include/ostream
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+++ b/include/ostream
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@@ -294,7 +294,7 @@ namespace std {
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#endif
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#endif
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- template <class charT,class traits = char_traits<charT> >
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+ template <class charT,class traits>
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class _UCXXEXPORT basic_ostream<charT,traits>::sentry
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{
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bool ok;
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--- a/include/istream
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+++ b/include/istream
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@@ -340,7 +340,7 @@ namespace std{
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};
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- template <class charT,class traits = char_traits<charT> > class _UCXXEXPORT basic_istream<charT,traits>::sentry {
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+ template <class charT,class traits> class _UCXXEXPORT basic_istream<charT,traits>::sentry {
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bool ok;
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public:
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explicit _UCXXEXPORT sentry(basic_istream<charT,traits>& os, bool noskipws = false){
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@ -1,114 +0,0 @@
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From 1dc865b8bbb3911abc8ce53c7ae8a59dc90f6fc3 Mon Sep 17 00:00:00 2001
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From: Ivan Kold <pixus.ru@gmail.com>
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Date: Thu, 3 Mar 2016 12:56:30 -0800
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Subject: [PATCH] Fix throw statement causing memory corruption
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The __cxxabiv1::__cxa_throw in the GCC's libsupc++ expects
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sizeof(__cxa_refcounted_exception) bytes be allocated before
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exception object.
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uClibc++ allocates only sizeof(__cxa_exception) before an
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exception object.
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The __cxxabiv1::__cxa_throw writes in memory before allocated:
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// gcc-5.2.0/libstdc++-v3/libsupc++/eh_throw.cc:69
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__cxa_refcounted_exception *header
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= __get_refcounted_exception_header_from_obj (obj);
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header->referenceCount = 1;
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Signed-off-by: Ivan Kold <pixus.ru@gmail.com>
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---
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include/unwind-cxx.h | 34 +++++++++++++++++++++++++++++++++-
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src/eh_alloc.cpp | 8 ++++----
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2 files changed, 37 insertions(+), 5 deletions(-)
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--- a/include/unwind-cxx.h
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+++ b/include/unwind-cxx.h
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@@ -1,5 +1,5 @@
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// -*- C++ -*- Exception handling and frame unwind runtime interface routines.
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-// Copyright (C) 2001 Free Software Foundation, Inc.
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+// Copyright (C) 2001-2015 Free Software Foundation, Inc.
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//
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// This file is part of GCC.
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//
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@@ -13,6 +13,10 @@
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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//
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+// Under Section 7 of GPL version 3, you are granted additional
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+// permissions described in the GCC Runtime Library Exception, version
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+// 3.1, as published by the Free Software Foundation.
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+//
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// You should have received a copy of the GNU General Public License
|
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// along with GCC; see the file COPYING. If not, write to
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// the Free Software Foundation, 59 Temple Place - Suite 330,
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@@ -40,6 +44,12 @@
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#include <cstddef>
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#include "unwind.h"
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+// Original unwind-cxx.h also includes bits/atomic_word.h which is CPU-specific,
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+// but always defines _Atomic_word as typedef int .
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+// Only thing that differs is memory-barrier macroses.
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+typedef int _Atomic_word;
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+
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+
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#pragma GCC visibility push(default)
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namespace __cxxabiv1
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@@ -79,6 +89,13 @@ struct __cxa_exception
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_Unwind_Exception unwindHeader;
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};
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+struct __cxa_refcounted_exception
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+{
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+ // Manage this header.
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+ _Atomic_word referenceCount;
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+ // __cxa_exception must be last, and no padding can be after it.
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+ __cxa_exception exc;
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+};
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// A dependent C++ exception object consists of a header, which is a wrapper
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// around an unwind object header with additional C++ specific information,
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@@ -210,6 +227,21 @@ __get_exception_header_from_ue (_Unwind_
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return reinterpret_cast<__cxa_exception *>(exc + 1) - 1;
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}
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+// Acquire the C++ refcounted exception header from the C++ object.
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+static inline __cxa_refcounted_exception *
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+__get_refcounted_exception_header_from_obj (void *ptr)
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+{
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+ return reinterpret_cast<__cxa_refcounted_exception *>(ptr) - 1;
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+}
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+
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+// Acquire the C++ refcounted exception header from the generic exception
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+// header.
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+static inline __cxa_refcounted_exception *
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+__get_refcounted_exception_header_from_ue (_Unwind_Exception *exc)
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+{
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+ return reinterpret_cast<__cxa_refcounted_exception *>(exc + 1) - 1;
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+}
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+
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} /* namespace __cxxabiv1 */
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|
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#pragma GCC visibility pop
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--- a/src/eh_alloc.cpp
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+++ b/src/eh_alloc.cpp
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@@ -30,16 +30,16 @@ extern "C" void * __cxa_allocate_excepti
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void *retval;
|
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//The sizeof crap is required by Itanium ABI because we need to provide space for
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//accounting information which is implementaion (gcc) specified
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- retval = malloc (thrown_size + sizeof(__cxa_exception));
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+ retval = malloc (thrown_size + sizeof(__cxa_refcounted_exception));
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if (0 == retval){
|
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std::terminate();
|
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}
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- memset (retval, 0, sizeof(__cxa_exception));
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- return (void *)((unsigned char *)retval + sizeof(__cxa_exception));
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+ memset (retval, 0, sizeof(__cxa_refcounted_exception));
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+ return (void *)((unsigned char *)retval + sizeof(__cxa_refcounted_exception));
|
||||
}
|
||||
|
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extern "C" void __cxa_free_exception(void *vptr) throw(){
|
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- free( (char *)(vptr) - sizeof(__cxa_exception) );
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+ free( (char *)(vptr) - sizeof(__cxa_refcounted_exception) );
|
||||
}
|
||||
|
||||
|
||||
|
|
@ -1,20 +0,0 @@
|
|||
--- a/src/del_op.cpp
|
||||
+++ b/src/del_op.cpp
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||||
@@ -24,3 +24,7 @@
|
||||
_UCXXEXPORT void operator delete(void* ptr) throw(){
|
||||
free(ptr);
|
||||
}
|
||||
+
|
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+_UCXXEXPORT void operator delete(void* ptr, size_t size) throw(){
|
||||
+ free(ptr);
|
||||
+}
|
||||
--- a/src/del_opv.cpp
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||||
+++ b/src/del_opv.cpp
|
||||
@@ -24,3 +24,7 @@
|
||||
_UCXXEXPORT void operator delete[](void * ptr) throw(){
|
||||
free(ptr);
|
||||
}
|
||||
+
|
||||
+_UCXXEXPORT void operator delete[](void * ptr, size_t size) throw(){
|
||||
+ free(ptr);
|
||||
+}
|
||||
|
|
@ -1,40 +0,0 @@
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|||
From 946b29e62927eadfc4e87f27b8d30e5974b78c4c Mon Sep 17 00:00:00 2001
|
||||
From: Ben Kelly <ben@benjii.net>
|
||||
Date: Mon, 6 Feb 2017 13:08:25 +0200
|
||||
Subject: [PATCH] Bugfix erase() on derived __base_associative
|
||||
|
||||
When calling erase() on a containers derived from __base_associative
|
||||
(e.g. multimap) and providing a pair of iterators a segfault will
|
||||
occur.
|
||||
|
||||
Example code to reproduce:
|
||||
|
||||
typedef std::multimap<int, int> testmap;
|
||||
testmap t;
|
||||
t.insert(std::pair<int, int>(1, 1));
|
||||
t.insert(std::pair<int, int>(2, 1));
|
||||
t.insert(std::pair<int, int>(3, 1));
|
||||
t.erase(t.begin(), t.end());
|
||||
|
||||
Signed-off-by: Ben Kelly <ben@benjii.net>
|
||||
---
|
||||
include/associative_base | 3 +--
|
||||
1 file changed, 1 insertion(+), 2 deletions(-)
|
||||
|
||||
diff --git a/include/associative_base b/include/associative_base
|
||||
index 27ae0ef..be8b27f 100644
|
||||
--- a/include/associative_base
|
||||
+++ b/include/associative_base
|
||||
@@ -200,8 +200,7 @@ public:
|
||||
}
|
||||
void erase(iterator first, iterator last){
|
||||
while(first != last){
|
||||
- backing.erase(first.base_iterator());
|
||||
- ++first;
|
||||
+ first = backing.erase(first.base_iterator());
|
||||
}
|
||||
}
|
||||
|
||||
--
|
||||
2.7.4
|
||||
|
||||
Loading…
Reference in New Issue