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				https://github.com/ethereum/solidity
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	This commit is the culmination of several months of work to decouple Solidity from the webthree-umbrella so that it can be developed in parallel with cpp-ethereum (the Ethereum C++ runtime) and so that even for the Solidity unit-tests there is no hard-dependency onto the C++ runtime. The Tests-over-IPC refactoring was a major step in the same process which was already committed. This commit contains the following changes: - A subset of the CMake functionality in webthree-helpers was extracted and tailored for Solidity into ./cmake. Further cleanup is certainly possible. - A subset of the libdevcore functionality in libweb3core was extracted and tailored for Solidity into ./libdevcore. Further cleanup is certainly possible - The gas price constants in EVMSchedule were orphaned into libevmasm. - Some other refactorings and cleanups were made to sever unnecessary EVM dependencies in the Solidity unit-tests. - TravisCI and Appveyor support was added, covering builds and running of the unit-tests (Linux and macOS only for now) - A bug-fix was made to get the Tests-over-IPC running on macOS. - There are still reliability issues in the unit-tests, which need immediate attention. The Travis build has been flipped to run the unit-tests 5 times, to try to flush these out. - The Emscripten automation which was previously in webthree-umbrella was merged into the TravisCI automation here. - The development ZIP deployment step has been commented out, but we will want to read that ONLY for release branch. Further iteration on these changes will definitely be needed, but I feel these have got to sufficient maturity than holding them back further isn't winning us anything. It is go time :-)
		
			
				
	
	
		
			126 lines
		
	
	
		
			3.6 KiB
		
	
	
	
		
			C
		
	
	
	
	
	
			
		
		
	
	
			126 lines
		
	
	
		
			3.6 KiB
		
	
	
	
		
			C
		
	
	
	
	
	
/* Copyright (c) 2013, Scott Tsai
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 *
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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 are met:
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 *
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 * 1. Redistributions of source code must retain the above copyright notice,
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 *    this list of conditions and the following disclaimer.
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 * 2. Redistributions in binary form must reproduce the above copyright notice,
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 *    this list of conditions and the following disclaimer in the documentation
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 *    and/or other materials provided with the distribution.
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 *
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 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
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 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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 * POSSIBILITY OF SUCH DAMAGE.
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 */
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#ifndef DEBUG_BREAK_H
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#define DEBUG_BREAK_H
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#if defined(_MSC_VER) || defined(__MINGW32__)
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#define debug_break __debugbreak
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#else
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#include <signal.h>
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#include <unistd.h>
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#include <sys/syscall.h>
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#ifdef __cplusplus
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extern "C" {
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#endif
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enum {
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	/* gcc optimizers consider code after __builtin_trap() dead.
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	 * Making __builtin_trap() unsuitable for breaking into the debugger */
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	DEBUG_BREAK_PREFER_BUILTIN_TRAP_TO_SIGTRAP = 0,
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};
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#if defined(__i386__) || defined(__x86_64__)
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enum { HAVE_TRAP_INSTRUCTION = 1, };
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__attribute__((gnu_inline, always_inline))
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static void __inline__ trap_instruction(void)
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{
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	__asm__ volatile("int $0x03");
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}
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#elif defined(__thumb__)
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enum { HAVE_TRAP_INSTRUCTION = 1, };
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/* FIXME: handle __THUMB_INTERWORK__ */
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__attribute__((gnu_inline, always_inline))
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static void __inline__ trap_instruction(void)
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{
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	/* See 'arm-linux-tdep.c' in GDB source.
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	 * Both instruction sequences below works. */
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#if 1
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	/* 'eabi_linux_thumb_le_breakpoint' */
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	__asm__ volatile(".inst 0xde01");
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#else
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	/* 'eabi_linux_thumb2_le_breakpoint' */
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	__asm__ volatile(".inst.w 0xf7f0a000");
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#endif
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	/* Known problem:
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	 * After a breakpoint hit, can't stepi, step, or continue in GDB.
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	 * 'step' stuck on the same instruction.
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	 *
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	 * Workaround: a new GDB command,
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	 * 'debugbreak-step' is defined in debugbreak-gdb.py
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	 * that does:
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	 * (gdb) set $instruction_len = 2
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	 * (gdb) tbreak *($pc + $instruction_len)
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	 * (gdb) jump   *($pc + $instruction_len)
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	 */
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}
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#elif defined(__arm__) && !defined(__thumb__)
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enum { HAVE_TRAP_INSTRUCTION = 1, };
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__attribute__((gnu_inline, always_inline))
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static void __inline__ trap_instruction(void)
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{
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	/* See 'arm-linux-tdep.c' in GDB source,
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	 * 'eabi_linux_arm_le_breakpoint' */
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	__asm__ volatile(".inst 0xe7f001f0");
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	/* Has same known problem and workaround
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	 * as Thumb mode */
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}
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#else
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enum { HAVE_TRAP_INSTRUCTION = 0, };
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#endif
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__attribute__((gnu_inline, always_inline))
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static void __inline__ debug_break(void)
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{
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	if (HAVE_TRAP_INSTRUCTION) {
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#if defined(ETH_EMSCRIPTEN)
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		asm("debugger");
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#else
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		trap_instruction();
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#endif
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	} else if (DEBUG_BREAK_PREFER_BUILTIN_TRAP_TO_SIGTRAP) {
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		 /* raises SIGILL on Linux x86{,-64}, to continue in gdb:
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		  * (gdb) handle SIGILL stop nopass
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		  * */
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		__builtin_trap();
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	} else {
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		raise(SIGTRAP);
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	}
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}
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#ifdef __cplusplus
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}
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#endif
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#endif
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#endif
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