From 1c7d6584a7811b7785ae5c1e378f14b5ba0971cf Mon Sep 17 00:00:00 2001 From: takeshi_hoshina Date: Mon, 2 Nov 2020 11:07:33 +0900 Subject: basesystem-jj recipes --- .../gcc/gcc-arm-8.2/0007-optional-libstdc.patch | 125 +++++++++++++++++++++ 1 file changed, 125 insertions(+) create mode 100644 bsp/meta-arm/meta-arm-toolchain/recipes-devtools/gcc/gcc-arm-8.2/0007-optional-libstdc.patch (limited to 'bsp/meta-arm/meta-arm-toolchain/recipes-devtools/gcc/gcc-arm-8.2/0007-optional-libstdc.patch') diff --git a/bsp/meta-arm/meta-arm-toolchain/recipes-devtools/gcc/gcc-arm-8.2/0007-optional-libstdc.patch b/bsp/meta-arm/meta-arm-toolchain/recipes-devtools/gcc/gcc-arm-8.2/0007-optional-libstdc.patch new file mode 100644 index 00000000..721ea03f --- /dev/null +++ b/bsp/meta-arm/meta-arm-toolchain/recipes-devtools/gcc/gcc-arm-8.2/0007-optional-libstdc.patch @@ -0,0 +1,125 @@ +From fb7df63e9548c29b70601d642a1850fc455f8565 Mon Sep 17 00:00:00 2001 +From: Khem Raj +Date: Fri, 29 Mar 2013 09:12:56 +0400 +Subject: [PATCH 07/39] 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 + +Upstream-Status: Inappropriate [embedded specific] +--- + gcc/c-family/c.opt | 4 ++++ + gcc/cp/g++spec.c | 1 + + gcc/doc/invoke.texi | 32 +++++++++++++++++++++++++++++++- + gcc/gcc.c | 1 + + 4 files changed, 37 insertions(+), 1 deletion(-) + +diff --git a/gcc/c-family/c.opt b/gcc/c-family/c.opt +index 5013501b232..6312f2c8f90 100644 +--- a/gcc/c-family/c.opt ++++ b/gcc/c-family/c.opt +@@ -1900,6 +1900,10 @@ 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 443a1746da3..e9b51be62ef 100644 +--- a/gcc/cp/g++spec.c ++++ b/gcc/cp/g++spec.c +@@ -137,6 +137,7 @@ 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 cb71b60fe3c..b0d481e3a30 100644 +--- a/gcc/doc/invoke.texi ++++ b/gcc/doc/invoke.texi +@@ -211,6 +211,9 @@ in the following sections. + -fno-weak -nostdinc++ @gol + -fvisibility-inlines-hidden @gol + -fvisibility-ms-compat @gol ++-fvtable-verify=@r{[}std@r{|}preinit@r{|}none@r{]} @gol ++-fvtv-counts -fvtv-debug @gol ++-nostdlib++ @gol + -fext-numeric-literals @gol + -Wabi=@var{n} -Wabi-tag -Wconversion-null -Wctor-dtor-privacy @gol + -Wdelete-non-virtual-dtor -Wliteral-suffix -Wmultiple-inheritance @gol +@@ -509,7 +512,7 @@ Objective-C and Objective-C++ Dialects}. + -s -static -static-pie -static-libgcc -static-libstdc++ @gol + -static-libasan -static-libtsan -static-liblsan -static-libubsan @gol + -static-libmpx -static-libmpxwrappers @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} -z @var{keyword}} + +@@ -12331,6 +12334,33 @@ library subroutines. + constructors are called; @pxref{Collect2,,@code{collect2}, gccint, + GNU Compiler Collection (GCC) Internals}.) + ++@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} ++@cindex @option{-lgcc}, use with @option{-nodefaultlibs} ++@cindex @option{-nodefaultlibs} and unresolved references ++@cindex unresolved references and @option{-nodefaultlibs} ++One of the standard libraries bypassed by @option{-nostdlib} and ++@option{-nodefaultlibs} is @file{libgcc.a}, a library of internal subroutines ++which GCC uses to overcome shortcomings of particular machines, or special ++needs for some languages. ++(@xref{Interface,,Interfacing to GCC Output,gccint,GNU Compiler ++Collection (GCC) Internals}, ++for more discussion of @file{libgcc.a}.) ++In most cases, you need @file{libgcc.a} even when you want to avoid ++other standard libraries. In other words, when you specify @option{-nostdlib} ++or @option{-nodefaultlibs} you should usually specify @option{-lgcc} as well. ++This ensures that you have no unresolved references to internal GCC ++library subroutines. ++(An example of such an internal subroutine is @code{__main}, used to ensure C++ ++constructors are called; @pxref{Collect2,,@code{collect2}, gccint, ++GNU Compiler Collection (GCC) Internals}.) ++ + @item -pie + @opindex pie + Produce a dynamically linked position independent executable on targets +diff --git a/gcc/gcc.c b/gcc/gcc.c +index 02b3cd39fc2..8cd27a5dad5 100644 +--- a/gcc/gcc.c ++++ b/gcc/gcc.c +@@ -1047,6 +1047,7 @@ 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*} \n%(post_link) }}}}}}" + #endif + +-- +2.17.0 + -- cgit 1.2.3-korg