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gcc: move the optimized assembler helpers back into the static libgcc and skip relinking for this arch. due to relocation constraints, the assembler functions cannot be in the shared libgcc and must always be linked in statically

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git-svn-id: svn://svn.openwrt.org/openwrt/trunk@25952 3c298f89-4303-0410-b956-a3cf2f4a3e73
This commit is contained in:
nbd 2011-03-08 13:10:11 +00:00
parent be4aa36f48
commit 0e2d55e3e3
2 changed files with 32 additions and 26 deletions
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27
package/base-files/Makefile
View File

@ -326,9 +326,12 @@ endef
LIBGCC_A=$(wildcard $(TOOLCHAIN_DIR)/lib/gcc/*/*/libgcc_pic.a)
LIBGCC_MAP=$(wildcard $(TOOLCHAIN_DIR)/lib/gcc/*/*/libgcc.map)
BUILD_LIBGCC:=$(if $(CONFIG_avr32)$(CONFIG_m68k),,$(PKG_BUILD_DIR)/libgcc_s.so.*)
LIBGCC_SO=$(wildcard $(TOOLCHAIN_DIR)/lib/libgcc_s.so.*)
ifeq ($(CONFIG_EXTERNAL_TOOLCHAIN),)
BUILD_LIBGCC:=$(if $(CONFIG_avr32)$(CONFIG_m68k)$(CONFIG_powerpc),,$(PKG_BUILD_DIR)/libgcc_s.so.*)
endif
ifneq ($(BUILD_LIBGCC),)
define Build/Compile/uClibc
$(SCRIPT_DIR)/relink-lib.sh \
"$(TARGET_CROSS)" \
@ -360,14 +363,26 @@ ifeq ($(CONFIG_EXTERNAL_TOOLCHAIN),)
-ldl $(BUILD_LIBGCC) \
-Wl,-soname=libpthread.so.0
endef
ifneq ($(BUILD_LIBGCC),)
define Build/Compile/libgcc
define Build/Compile/libgcc
$(SCRIPT_DIR)/relink-lib.sh \
"$(TARGET_CROSS)" \
"$(wildcard $(TOOLCHAIN_DIR)/lib/libgcc_s.so.*)" \
"$(LIBGCC_SO)" \
"$(LIBGCC_A)" \
"$(patsubst $(TOOLCHAIN_DIR)/lib/%,$(PKG_BUILD_DIR)/%,$(wildcard $(TOOLCHAIN_DIR)/lib/libgcc_s.so.*))" \
"$(patsubst $(TOOLCHAIN_DIR)/lib/%,$(PKG_BUILD_DIR)/%,$(LIBGCC_SO))" \
-Wl,--version-script=$(LIBGCC_MAP) -Wl,-soname=libgcc_s.so.1
endef
else
define Build/Compile/uClibc
$(CP) \
$(TOOLCHAIN_DIR)/lib/libuClibc-*.so \
$(TOOLCHAIN_DIR)/lib/libcrypt-*.so \
$(TOOLCHAIN_DIR)/lib/libm-*.so \
$(TOOLCHAIN_DIR)/lib/libpthread-*.so \
$(PKG_BUILD_DIR)/
endef
ifneq ($(LIBGCC_SO),)
define Build/Compile/libgcc
$(CP) $(LIBGCC_SO) $(PKG_BUILD_DIR)/
endef
endif
endif

31
toolchain/gcc/patches/linaro/850-use_shared_libgcc.patch
View File

@ -35,18 +35,6 @@
/* Determine which dynamic linker to use depending on whether GLIBC or
uClibc is the default C library and whether -muclibc or -mglibc has
been passed to change the default. */
--- a/gcc/config/rs6000/ppc-asm.h
+++ b/gcc/config/rs6000/ppc-asm.h
@@ -325,8 +325,7 @@
FUNC_NAME(name):
#define HIDDEN_FUNC(name) \
- FUNC_START(name) \
- .hidden FUNC_NAME(name);
+ FUNC_START(name);
#define FUNC_END(name) \
GLUE(.L,name): \
--- a/gcc/mkmap-symver.awk
+++ b/gcc/mkmap-symver.awk
@@ -132,5 +132,5 @@
@ -56,14 +44,6 @@
- printf ("\n local:\n\t*;\n};\n");
+ printf ("\n\t*;\n};\n");
}
--- a/libgcc/config/rs6000/t-ppccomm
+++ b/libgcc/config/rs6000/t-ppccomm
@@ -1,4 +1,4 @@
-LIB2ADD_ST += crtsavfpr.S crtresfpr.S \
+LIB2ADD += crtsavfpr.S crtresfpr.S \
crtsavgpr.S crtresgpr.S \
crtresxfpr.S crtresxgpr.S \
e500crtres32gpr.S \
--- a/libgcc/Makefile.in
+++ b/libgcc/Makefile.in
@@ -265,7 +265,7 @@
@ -75,3 +55,14 @@
ifneq (,$(vis_hide))
--- a/gcc/config/rs6000/linux.h
+++ b/gcc/config/rs6000/linux.h
@@ -85,6 +85,8 @@
#define USE_LD_AS_NEEDED 1
#endif
+#define LIBGCC_SPEC "%{!static:%{!static-libgcc:-lgcc_s}} -lgcc"
+
#undef TARGET_VERSION
#define TARGET_VERSION fprintf (stderr, " (PowerPC GNU/Linux)");