added and modified libdl to support SuperH architecture

4 files changed, 117 insertions, 1 deletions

diff --git a/libdl/Android.mk b/libdl/Android.mk
index 150f704..8d56f9a 100644
--- a/libdl/Android.mk
+++ b/libdl/Android.mk
@@ -36,6 +36,21 @@ LOCAL_MODULE:= libdl
 LOCAL_ALLOW_UNDEFINED_SYMBOLS := true
 LOCAL_SYSTEM_SHARED_LIBRARIES := 
 
+ifeq ($(TARGET_ARCH),sh)
+# for SuperH, additional code is necessary to handle .ctors section.
+GEN_SOBEGIN := $(TARGET_OUT_STATIC_LIBRARIES)/sobegin.o
+$(GEN_SOBEGIN): $(LOCAL_PATH)/arch-sh/sobegin.S
+	@mkdir -p $(dir $@)
+	$(TARGET_CC) -o $@ -c $<
+
+GEN_SOEND := $(TARGET_OUT_STATIC_LIBRARIES)/soend.o
+$(GEN_SOEND): $(LOCAL_PATH)/arch-sh/soend.S
+	@mkdir -p $(dir $@)
+	$(TARGET_CC) -o $@ -c $<
+
+LOCAL_ADDITIONAL_DEPENDENCIES := $(GEN_SOBEGIN) $(GEN_SOEND)
+endif
+
 include $(BUILD_SHARED_LIBRARY)
 
 BUILD_DLTEST:=0
diff --git a/libdl/arch-sh/sobegin.S b/libdl/arch-sh/sobegin.S
new file mode 100644
index 0000000..976b1a6
--- /dev/null
+++ b/libdl/arch-sh/sobegin.S
@@ -0,0 +1,70 @@
+/*
+ * Copyright (C) 2009 The Android Open Project
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *  * Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ *  * Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in
+ *    the documentation and/or other materials provided with the
+ *    distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+ * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+ * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+ * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
+ * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
+ * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+ * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+    .text
+    .align 4
+    .type  _init,#function
+    .globl _init
+
+# The toolchain for SH-Linux does not produce INIT_ARRAY information which
+# bionic linker relies on.  Instead of it, The toolchain for SH-Linux produces
+# INIT information when it find the function whose name is '_init'.
+#
+_init:
+    sts.l   pr, @-r15
+    mov.l   r8, @-r15
+    mov.l   0f, r8      /* first entry is invalid */
+.L_loop:
+    add     #4, r8
+    mov.l   @r8, r0
+    cmp/eq  #0, r0      /* Zero terimnated. See 'soend.so'. */
+    bt      .L_end
+    jsr     @r0         /* invoke a constructor */
+    nop
+    bra     .L_loop
+    nop
+.L_end:
+    mov.l   @r15+, r8
+    lds.l   @r15+, pr
+
+    rts
+    nop
+
+    .balign 4
+0:  .long   __CTOR_LIST__
+
+# the .ctors section contains a list of pointers to "constructor"
+# functions that need to be called in order during C library initialization,
+# just before the program is being run. This is a C++ requirement
+#
+# the last entry shall be 0, and is defined in crtend.S
+#
+    .section .ctors, "aw"
+    .globl __CTOR_LIST__
+__CTOR_LIST__:
+    .long   -1
+
diff --git a/libdl/arch-sh/soend.S b/libdl/arch-sh/soend.S
new file mode 100644
index 0000000..7fa98a4
--- /dev/null
+++ b/libdl/arch-sh/soend.S
@@ -0,0 +1,31 @@
+/*
+ * Copyright (C) 2009 The Android Open Project
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *  * Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ *  * Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in
+ *    the documentation and/or other materials provided with the
+ *    distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+ * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+ * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+ * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
+ * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
+ * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+ * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+    .section .ctors, "aw"
+    .long 0
+
diff --git a/libdl/libdl.c b/libdl/libdl.c
index 52707f1..7971942 100644
--- a/libdl/libdl.c
+++ b/libdl/libdl.c
@@ -24,7 +24,7 @@ int dlclose(void *handle) { return 0; }
 
 #ifdef __arm__
 void *dl_unwind_find_exidx(void *pc, int *pcount) { return 0; }
-#elif defined(__i386__)
+#elif defined(__i386__) || defined(__sh__)
 /* we munge the cb definition so we don't have to include any headers here.
  * It won't affect anything since these are just symbols anyway */
 int dl_iterate_phdr(int (*cb)(void *info, void *size, void *data),