diff options
Diffstat (limited to 'meta/recipes-devtools/gcc/gcc-4.8/0020-optional-libstdc.patch')
| -rw-r--r-- | meta/recipes-devtools/gcc/gcc-4.8/0020-optional-libstdc.patch | 102 |
1 files changed, 102 insertions, 0 deletions
diff --git a/meta/recipes-devtools/gcc/gcc-4.8/0020-optional-libstdc.patch b/meta/recipes-devtools/gcc/gcc-4.8/0020-optional-libstdc.patch new file mode 100644 index 0000000000..eff021eb99 --- /dev/null +++ b/meta/recipes-devtools/gcc/gcc-4.8/0020-optional-libstdc.patch @@ -0,0 +1,102 @@ +From 307c8ff3ef666b7bd5ac733863f2fbb27a9d521e Mon Sep 17 00:00:00 2001 +From: Khem Raj <raj.khem@gmail.com> +Date: Fri, 29 Mar 2013 09:12:56 +0400 +Subject: [PATCH 20/35] optional libstdc + +gcc-runtime builds libstdc++ separately from gcc-cross-*. Its configure tests using g++ +will not run correctly since by default the linker will try to link against libstdc++ +which shouldn't exist yet. We need an option to disable -lstdc++ +option whilst leaving -lc, -lgcc and other automatic library dependencies added by gcc +driver. This patch adds such an option which only disables the -lstdc++. + +A "standard" gcc build uses xgcc and hence avoids this. We should ask upstream how to +do this officially, the likely answer is don't build libstdc++ separately. + +RP 29/6/10 + +Signed-off-by: Khem Raj <raj.khem@gmail.com> + +Upstream-Status: Inappropriate [embedded specific] +--- + gcc/c-family/c.opt | 4 ++++ + gcc/cp/g++spec.c | 1 + + gcc/doc/invoke.texi | 9 +++++++-- + gcc/gcc.c | 1 + + 4 files changed, 13 insertions(+), 2 deletions(-) + +diff --git a/gcc/c-family/c.opt b/gcc/c-family/c.opt +index 10ae84d..dc3ffdf 100644 +--- a/gcc/c-family/c.opt ++++ b/gcc/c-family/c.opt +@@ -1299,6 +1299,10 @@ nostdinc++ + C++ ObjC++ + Do not search standard system include directories for C++ + ++nostdlib++ ++Driver ++Do not link standard C++ runtime library ++ + o + C ObjC C++ ObjC++ Joined Separate + ; Documented in common.opt +diff --git a/gcc/cp/g++spec.c b/gcc/cp/g++spec.c +index b896eea..f55216b 100644 +--- a/gcc/cp/g++spec.c ++++ b/gcc/cp/g++spec.c +@@ -126,6 +126,7 @@ lang_specific_driver (struct cl_decoded_option **in_decoded_options, + switch (decoded_options[i].opt_index) + { + case OPT_nostdlib: ++ case OPT_nostdlib__: + case OPT_nodefaultlibs: + library = -1; + break; +diff --git a/gcc/doc/invoke.texi b/gcc/doc/invoke.texi +index a022622..f15c991 100644 +--- a/gcc/doc/invoke.texi ++++ b/gcc/doc/invoke.texi +@@ -190,7 +190,7 @@ in the following sections. + -frepo -fno-rtti -fstats -ftemplate-backtrace-limit=@var{n} @gol + -ftemplate-depth=@var{n} @gol + -fno-threadsafe-statics -fuse-cxa-atexit -fno-weak -nostdinc++ @gol +--fno-default-inline -fvisibility-inlines-hidden @gol ++-nostdlib++ -fno-default-inline -fvisibility-inlines-hidden @gol + -fvisibility-ms-compat @gol + -fext-numeric-literals @gol + -Wabi -Wconversion-null -Wctor-dtor-privacy @gol +@@ -453,7 +453,7 @@ Objective-C and Objective-C++ Dialects}. + -nostartfiles -nodefaultlibs -nostdlib -pie -rdynamic @gol + -s -static -static-libgcc -static-libstdc++ @gol + -static-libasan -static-libtsan @gol +--shared -shared-libgcc -symbolic @gol ++-shared -shared-libgcc -symbolic -nostdlib++ @gol + -T @var{script} -Wl,@var{option} -Xlinker @var{option} @gol + -u @var{symbol}} + +@@ -9886,6 +9886,11 @@ These entries are usually resolved by entries in + libc. These entry points should be supplied through some other + mechanism when this option is specified. + ++@item -nostdlib++ ++@opindex nostdlib++ ++Do not use the standard system C++ runtime libraries when linking. ++Only the libraries you specify will be passed to the linker. ++ + @cindex @option{-lgcc}, use with @option{-nostdlib} + @cindex @option{-nostdlib} and unresolved references + @cindex unresolved references and @option{-nostdlib} +diff --git a/gcc/gcc.c b/gcc/gcc.c +index efdb625..477752f 100644 +--- a/gcc/gcc.c ++++ b/gcc/gcc.c +@@ -748,6 +748,7 @@ proper position among the other output files. */ + %(mflib) " STACK_SPLIT_SPEC "\ + %{fprofile-arcs|fprofile-generate*|coverage:-lgcov} " SANITIZER_SPEC " \ + %{!nostdlib:%{!nodefaultlibs:%(link_ssp) %(link_gcc_c_sequence)}}\ ++ %{!nostdlib++:}\ + %{!nostdlib:%{!nostartfiles:%E}} %{T*} }}}}}}" + #endif + +-- +1.7.10.4 + |