added and modified libdl to support SuperH architecture
This commit is contained in:
Shin-ichiro KAWASAKI
committed by
Tony Sim
Tony Sim
parent
90ec5f2a3f
commit
efecfde19a
@@ -36,6 +36,21 @@ LOCAL_MODULE:= libdl
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LOCAL_ALLOW_UNDEFINED_SYMBOLS := true
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LOCAL_SYSTEM_SHARED_LIBRARIES :=
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ifeq ($(TARGET_ARCH),sh)
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# for SuperH, additional code is necessary to handle .ctors section.
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GEN_SOBEGIN := $(TARGET_OUT_STATIC_LIBRARIES)/sobegin.o
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$(GEN_SOBEGIN): $(LOCAL_PATH)/arch-sh/sobegin.S
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@mkdir -p $(dir $@)
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$(TARGET_CC) -o $@ -c $<
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GEN_SOEND := $(TARGET_OUT_STATIC_LIBRARIES)/soend.o
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$(GEN_SOEND): $(LOCAL_PATH)/arch-sh/soend.S
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@mkdir -p $(dir $@)
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$(TARGET_CC) -o $@ -c $<
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LOCAL_ADDITIONAL_DEPENDENCIES := $(GEN_SOBEGIN) $(GEN_SOEND)
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endif
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include $(BUILD_SHARED_LIBRARY)
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BUILD_DLTEST:=0
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70
libdl/arch-sh/sobegin.S
Normal file
70
libdl/arch-sh/sobegin.S
Normal file
@@ -0,0 +1,70 @@
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/*
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* Copyright (C) 2009 The Android Open Project
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
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* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
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* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
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* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
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* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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.text
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.align 4
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.type _init,#function
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.globl _init
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# The toolchain for SH-Linux does not produce INIT_ARRAY information which
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# bionic linker relies on. Instead of it, The toolchain for SH-Linux produces
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# INIT information when it find the function whose name is '_init'.
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#
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_init:
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sts.l pr, @-r15
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mov.l r8, @-r15
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mov.l 0f, r8 /* first entry is invalid */
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.L_loop:
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add #4, r8
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mov.l @r8, r0
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cmp/eq #0, r0 /* Zero terimnated. See 'soend.so'. */
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bt .L_end
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jsr @r0 /* invoke a constructor */
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nop
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bra .L_loop
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nop
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.L_end:
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mov.l @r15+, r8
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lds.l @r15+, pr
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rts
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nop
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.balign 4
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0: .long __CTOR_LIST__
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# the .ctors section contains a list of pointers to "constructor"
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# functions that need to be called in order during C library initialization,
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# just before the program is being run. This is a C++ requirement
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#
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# the last entry shall be 0, and is defined in crtend.S
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#
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.section .ctors, "aw"
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.globl __CTOR_LIST__
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__CTOR_LIST__:
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.long -1
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31
libdl/arch-sh/soend.S
Normal file
31
libdl/arch-sh/soend.S
Normal file
@@ -0,0 +1,31 @@
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/*
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* Copyright (C) 2009 The Android Open Project
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
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* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
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* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
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* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
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* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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.section .ctors, "aw"
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.long 0
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@@ -24,7 +24,7 @@ int dlclose(void *handle) { return 0; }
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#ifdef __arm__
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void *dl_unwind_find_exidx(void *pc, int *pcount) { return 0; }
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#elif defined(__i386__)
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#elif defined(__i386__) || defined(__sh__)
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/* we munge the cb definition so we don't have to include any headers here.
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* It won't affect anything since these are just symbols anyway */
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int dl_iterate_phdr(int (*cb)(void *info, void *size, void *data),
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