ndk: Remove prebuilt C runtime objects. Add sources instead.
This patch removes all prebuilt C runtime object files from
the ndk/platforms/ directory. We replace them with equivalent
assembly sources lifted from the following directories:
bionic/libc/private/ (for __dso_handle.S and __dso_handle_so.S)
bionic/libc/arch-$ARCH/ (for all others)
Note: This requires that your NDK's gen-platforms.sh script be
capable of rebuilding the object files from sources.
See https://android-review.googlesource.com/36822
The goal here is to make it much easier to update these files,
and track their changes relative to the content of bionic/lib.
For example to fix the following issues in the future:
Change-Id: If4c84e2584b0e58ca3585b034bb8a13a8add8ab9
http://code.google.com/p/android/issues/detail?id=26911
http://code.google.com/p/android/issues/detail?id=23203
This commit is contained in:
David 'Digit' Turner
139
ndk/platforms/android-9/arch-x86/src/crtbegin_dynamic.S
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139
ndk/platforms/android-9/arch-x86/src/crtbegin_dynamic.S
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@@ -0,0 +1,139 @@
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# bionic/arch-x86/bionic/crtbegin_dynamic.S
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#
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# Copyright 2006, The Android Open Source Project
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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 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 the
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# documentation and/or other materials provided with the distribution.
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# * Neither the name of Google Inc. nor the names of its contributors may
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# be used to endorse or promote products derived from this software
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# without specific prior written permission.
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#
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# THIS SOFTWARE IS PROVIDED BY Google Inc. ``AS IS'' AND ANY EXPRESS OR
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# IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
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# MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
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# EVENT SHALL Google Inc. BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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# PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
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# OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
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# WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
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# OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
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# ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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.text
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.align 4
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.type _start, @function
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.globl _start
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# this is the small startup code that is first run when
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# any executable that is dynamically-linked with Bionic
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# runs.
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#
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# it's purpose is to call __libc_init with appropriate
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# arguments, which are:
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#
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# - the address of the raw data block setup by the Linux
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# kernel ELF loader
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#
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# - address of an "onexit" function, not used on any
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# platform supported by Bionic
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#
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# - address of the "main" function of the program. We
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# can't hard-code it in the adr pseudo instruction
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# so we use a tiny trampoline that will get relocated
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# by the dynamic linker before this code runs
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#
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# - address of the constructor list
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#
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_start:
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mov %esp, %eax
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# before push arguments, align the stack to a 16 byte boundary
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andl $~15, %esp
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mov $1f, %edx
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pushl %edx
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mov $0f, %edx
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pushl %edx
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mov $0, %edx
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pushl %edx
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pushl %eax
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call __libc_init
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0:
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jmp main
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1: .long __PREINIT_ARRAY__
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.long __INIT_ARRAY__
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.long __FINI_ARRAY__
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.section .preinit_array, "aw"
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.globl __PREINIT_ARRAY__
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__PREINIT_ARRAY__:
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.long -1
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.section .init_array, "aw"
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.globl __INIT_ARRAY__
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__INIT_ARRAY__:
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.long -1
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.long frame_dummy
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.section .fini_array, "aw"
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.globl __FINI_ARRAY__
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__FINI_ARRAY__:
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.long -1
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.long __do_global_dtors_aux
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.section .eh_frame,"a",@progbits
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.align 4
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.type __EH_FRAME_BEGIN__, @object
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__EH_FRAME_BEGIN__:
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.text
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.p2align 4,,15
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.type __do_global_dtors_aux, @function
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__do_global_dtors_aux:
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pushl %ebp
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movl %esp, %ebp
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subl $24, %esp
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cmpb $0, completed.4454
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jne .L4
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movl $__deregister_frame_info_bases, %eax
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testl %eax, %eax
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je .L3
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movl $__EH_FRAME_BEGIN__, (%esp)
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call __deregister_frame_info_bases
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.L3:
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movb $1, completed.4454
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.L4:
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leave
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ret
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.text
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.p2align 4,,15
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.type frame_dummy, @function
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frame_dummy:
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pushl %ebp
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movl $__register_frame_info_bases, %eax
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movl %esp, %ebp
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subl $24, %esp
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testl %eax, %eax
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je .L7
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movl %ebx, 12(%esp)
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movl $0, 8(%esp)
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movl $object.4466, 4(%esp)
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movl $__EH_FRAME_BEGIN__, (%esp)
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call __register_frame_info_bases
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.L7:
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leave
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ret
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.local completed.4454
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.comm completed.4454,1,1
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.local object.4466
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.comm object.4466,24,4
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.weak __register_frame_info_bases
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.weak __deregister_frame_info_bases
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#include "__dso_handle.S"
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#include "atexit.S"
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#include "__stack_chk_fail_local.S"
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