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-rw-r--r--package/base-files/Makefile64
-rwxr-xr-xscripts/relink-lib.sh14
2 files changed, 73 insertions, 5 deletions
diff --git a/package/base-files/Makefile b/package/base-files/Makefile
index 4abbdf7ac..27916f3e6 100644
--- a/package/base-files/Makefile
+++ b/package/base-files/Makefile
@@ -327,8 +327,56 @@ endef
define Build/Compile/Default
endef
+LIBGCC_A=$(wildcard $(TOOLCHAIN_DIR)/lib/gcc/*/*/libgcc_pic.a)
+LIBGCC_MAP=$(wildcard $(TOOLCHAIN_DIR)/lib/gcc/*/*/libgcc.map)
+
+ifeq ($(CONFIG_EXTERNAL_TOOLCHAIN),)
+ define Build/Compile/uClibc
+ $(SCRIPT_DIR)/relink-lib.sh \
+ "$(TARGET_CROSS)" \
+ "$(wildcard $(TOOLCHAIN_DIR)/lib/libc_so.a)" \
+ "$(wildcard $(TOOLCHAIN_DIR)/lib/libc_so.a)" \
+ "$(patsubst $(TOOLCHAIN_DIR)/lib/%,$(PKG_BUILD_DIR)/%,$(wildcard $(TOOLCHAIN_DIR)/lib/libuClibc-*.so))" \
+ -Wl,-init,__uClibc_init -Wl,-soname=libc.so.0 \
+ $(PKG_BUILD_DIR)/libgcc_s.so.*
+ $(SCRIPT_DIR)/relink-lib.sh \
+ "$(TARGET_CROSS)" \
+ "$(wildcard $(TOOLCHAIN_DIR)/lib/libcrypt-*.so)" \
+ "$(wildcard $(TOOLCHAIN_DIR)/lib/libcrypt_pic.a)" \
+ "$(patsubst $(TOOLCHAIN_DIR)/lib/%,$(PKG_BUILD_DIR)/%,$(wildcard $(TOOLCHAIN_DIR)/lib/libcrypt-*.so))" \
+ $(PKG_BUILD_DIR)/libgcc_s.so.* \
+ -Wl,-soname=libcrypt.so.0
+ $(SCRIPT_DIR)/relink-lib.sh \
+ "$(TARGET_CROSS)" \
+ "$(wildcard $(TOOLCHAIN_DIR)/lib/libm-*.so)" \
+ "$(wildcard $(TOOLCHAIN_DIR)/lib/libm_pic.a)" \
+ "$(patsubst $(TOOLCHAIN_DIR)/lib/%,$(PKG_BUILD_DIR)/%,$(wildcard $(TOOLCHAIN_DIR)/lib/libm-*.so))" \
+ $(PKG_BUILD_DIR)/libgcc_s.so.* \
+ -Wl,-soname=libm.so.0
+ $(SCRIPT_DIR)/relink-lib.sh \
+ "$(TARGET_CROSS)" \
+ "$(wildcard $(TOOLCHAIN_DIR)/lib/libpthread-*.so)" \
+ "$(wildcard $(TOOLCHAIN_DIR)/lib/libpthread_so.a)" \
+ "$(patsubst $(TOOLCHAIN_DIR)/lib/%,$(PKG_BUILD_DIR)/%,$(wildcard $(TOOLCHAIN_DIR)/lib/libpthread-*.so))" \
+ -Wl,-z,nodelete,-z,initfirst,-init=__pthread_initialize_minimal_internal \
+ $(PKG_BUILD_DIR)/libgcc_s.so.* \
+ -Wl,-soname=libpthread.so.0
+ endef
+
+ define Build/Compile/libgcc
+ $(SCRIPT_DIR)/relink-lib.sh \
+ "$(TARGET_CROSS)" \
+ "$(wildcard $(TOOLCHAIN_DIR)/lib/libgcc_s.so.*)" \
+ "$(LIBGCC_A)" \
+ "$(patsubst $(TOOLCHAIN_DIR)/lib/%,$(PKG_BUILD_DIR)/%,$(wildcard $(TOOLCHAIN_DIR)/lib/libgcc_s.so.*))" \
+ -Wl,--version-script=$(LIBGCC_MAP) -Wl,-soname=libgcc_s.so.1
+ endef
+endif
+
define Build/Compile
$(call Build/Compile/Default)
+ $(call Build/Compile/libgcc)
+ $(call Build/Compile/$(LIBC))
endef
define Package/base-files/install
@@ -398,7 +446,7 @@ ifeq ($(CONFIG_EXTERNAL_TOOLCHAIN),)
define Package/libgcc/install
$(INSTALL_DIR) $(1)/lib
- $(CP) $(TOOLCHAIN_DIR)/lib/libgcc_s.so.* $(1)/lib/
+ $(CP) $(PKG_BUILD_DIR)/libgcc_s.so.* $(1)/lib/
endef
define Package/libssp/install
@@ -450,6 +498,12 @@ ifeq ($(CONFIG_EXTERNAL_TOOLCHAIN),)
$(TOOLCHAIN_DIR)/lib/$$$$file-$(LIBC_SO_VERSION).so \
$(1)/lib/; \
done
+
+ $(CP) \
+ $(PKG_BUILD_DIR)/libuClibc-* \
+ $(PKG_BUILD_DIR)/libm-* \
+ $(PKG_BUILD_DIR)/libcrypt-* \
+ $(1)/lib/
endef
define Package/libc/install
@@ -459,9 +513,9 @@ ifeq ($(CONFIG_EXTERNAL_TOOLCHAIN),)
define Package/libc/install_lib
$(CP) $(filter-out %/libdl_pic.a %/libpthread_pic.a %/libresolv_pic.a,$(wildcard $(TOOLCHAIN_DIR)/lib/lib*.a)) $(1)/lib/
$(if $(wildcard $(TOOLCHAIN_DIR)/lib/libc_so.a),$(CP) $(TOOLCHAIN_DIR)/lib/libc_so.a $(1)/lib/libc_pic.a)
- $(if $(wildcard $(TOOLCHAIN_DIR)/lib/gcc/*/*/libgcc.map), \
- $(CP) $(TOOLCHAIN_DIR)/lib/gcc/*/*/libgcc_pic.a $(1)/lib/libgcc_s_pic.a; \
- $(CP) $(TOOLCHAIN_DIR)/lib/gcc/*/*/libgcc.map $(1)/lib/libgcc_s_pic.map \
+ $(if $(LIBGCC_MAP), \
+ $(CP) $(LIBGCC_A) $(1)/lib/libgcc_s_pic.a; \
+ $(CP) $(LIBGCC_MAP) $(1)/lib/libgcc_s_pic.map \
)
endef
@@ -469,7 +523,7 @@ ifeq ($(CONFIG_EXTERNAL_TOOLCHAIN),)
$(INSTALL_DIR) $(1)/lib
$(CP) \
$(TOOLCHAIN_DIR)/lib/libpthread.so.* \
- $(TOOLCHAIN_DIR)/lib/libpthread-$(LIBC_SO_VERSION).so \
+ $(PKG_BUILD_DIR)/libpthread-$(LIBC_SO_VERSION).so \
$(1)/lib/
endef
diff --git a/scripts/relink-lib.sh b/scripts/relink-lib.sh
new file mode 100755
index 000000000..5367b7093
--- /dev/null
+++ b/scripts/relink-lib.sh
@@ -0,0 +1,14 @@
+#!/bin/sh
+[ $# -lt 4 -o -z "$1" -o -z "$2" -o -z "$3" -o -z "$4" ] && {
+ echo "Usage: $0 <cross> <reference> <pic .a> <destination>"
+ exit 1
+}
+
+cross="$1"; shift
+ref="$1"; shift
+pic="$1"; shift
+dest="$1"; shift
+
+SYMBOLS="$(${cross}nm "$ref" | grep -E '........ [TW] ' | awk '$3 {printf "-u%s ", $3}')"
+set -x
+${cross}gcc -nostdlib -nostartfiles -shared -Wl,--gc-sections -o "$dest" $SYMBOLS "$pic" "$@"