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-rw-r--r--meta/recipes-devtools/gcc/gcc-4.8/0020-optional-libstdc.patch102
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 0000000..eff021e
--- /dev/null
+++ b/meta/recipes-devtools/gcc/gcc-4.8/0020-optional-libstdc.patch
@@ -0,0 +1,102 @@
1From 307c8ff3ef666b7bd5ac733863f2fbb27a9d521e Mon Sep 17 00:00:00 2001
2From: Khem Raj <raj.khem@gmail.com>
3Date: Fri, 29 Mar 2013 09:12:56 +0400
4Subject: [PATCH 20/35] optional libstdc
5
6gcc-runtime builds libstdc++ separately from gcc-cross-*. Its configure tests using g++
7will not run correctly since by default the linker will try to link against libstdc++
8which shouldn't exist yet. We need an option to disable -lstdc++
9option whilst leaving -lc, -lgcc and other automatic library dependencies added by gcc
10driver. This patch adds such an option which only disables the -lstdc++.
11
12A "standard" gcc build uses xgcc and hence avoids this. We should ask upstream how to
13do this officially, the likely answer is don't build libstdc++ separately.
14
15RP 29/6/10
16
17Signed-off-by: Khem Raj <raj.khem@gmail.com>
18
19Upstream-Status: Inappropriate [embedded specific]
20---
21 gcc/c-family/c.opt | 4 ++++
22 gcc/cp/g++spec.c | 1 +
23 gcc/doc/invoke.texi | 9 +++++++--
24 gcc/gcc.c | 1 +
25 4 files changed, 13 insertions(+), 2 deletions(-)
26
27diff --git a/gcc/c-family/c.opt b/gcc/c-family/c.opt
28index 10ae84d..dc3ffdf 100644
29--- a/gcc/c-family/c.opt
30+++ b/gcc/c-family/c.opt
31@@ -1299,6 +1299,10 @@ nostdinc++
32 C++ ObjC++
33 Do not search standard system include directories for C++
34
35+nostdlib++
36+Driver
37+Do not link standard C++ runtime library
38+
39 o
40 C ObjC C++ ObjC++ Joined Separate
41 ; Documented in common.opt
42diff --git a/gcc/cp/g++spec.c b/gcc/cp/g++spec.c
43index b896eea..f55216b 100644
44--- a/gcc/cp/g++spec.c
45+++ b/gcc/cp/g++spec.c
46@@ -126,6 +126,7 @@ lang_specific_driver (struct cl_decoded_option **in_decoded_options,
47 switch (decoded_options[i].opt_index)
48 {
49 case OPT_nostdlib:
50+ case OPT_nostdlib__:
51 case OPT_nodefaultlibs:
52 library = -1;
53 break;
54diff --git a/gcc/doc/invoke.texi b/gcc/doc/invoke.texi
55index a022622..f15c991 100644
56--- a/gcc/doc/invoke.texi
57+++ b/gcc/doc/invoke.texi
58@@ -190,7 +190,7 @@ in the following sections.
59 -frepo -fno-rtti -fstats -ftemplate-backtrace-limit=@var{n} @gol
60 -ftemplate-depth=@var{n} @gol
61 -fno-threadsafe-statics -fuse-cxa-atexit -fno-weak -nostdinc++ @gol
62--fno-default-inline -fvisibility-inlines-hidden @gol
63+-nostdlib++ -fno-default-inline -fvisibility-inlines-hidden @gol
64 -fvisibility-ms-compat @gol
65 -fext-numeric-literals @gol
66 -Wabi -Wconversion-null -Wctor-dtor-privacy @gol
67@@ -453,7 +453,7 @@ Objective-C and Objective-C++ Dialects}.
68 -nostartfiles -nodefaultlibs -nostdlib -pie -rdynamic @gol
69 -s -static -static-libgcc -static-libstdc++ @gol
70 -static-libasan -static-libtsan @gol
71--shared -shared-libgcc -symbolic @gol
72+-shared -shared-libgcc -symbolic -nostdlib++ @gol
73 -T @var{script} -Wl,@var{option} -Xlinker @var{option} @gol
74 -u @var{symbol}}
75
76@@ -9886,6 +9886,11 @@ These entries are usually resolved by entries in
77 libc. These entry points should be supplied through some other
78 mechanism when this option is specified.
79
80+@item -nostdlib++
81+@opindex nostdlib++
82+Do not use the standard system C++ runtime libraries when linking.
83+Only the libraries you specify will be passed to the linker.
84+
85 @cindex @option{-lgcc}, use with @option{-nostdlib}
86 @cindex @option{-nostdlib} and unresolved references
87 @cindex unresolved references and @option{-nostdlib}
88diff --git a/gcc/gcc.c b/gcc/gcc.c
89index efdb625..477752f 100644
90--- a/gcc/gcc.c
91+++ b/gcc/gcc.c
92@@ -748,6 +748,7 @@ proper position among the other output files. */
93 %(mflib) " STACK_SPLIT_SPEC "\
94 %{fprofile-arcs|fprofile-generate*|coverage:-lgcov} " SANITIZER_SPEC " \
95 %{!nostdlib:%{!nodefaultlibs:%(link_ssp) %(link_gcc_c_sequence)}}\
96+ %{!nostdlib++:}\
97 %{!nostdlib:%{!nostartfiles:%E}} %{T*} }}}}}}"
98 #endif
99
100--
1011.7.10.4
102