76 строки
2.7 KiB
Bash
76 строки
2.7 KiB
Bash
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#!/bin/bash -e
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#
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# This script allows CMAKE_CXX_COMPILER to be a standard
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# C++ compiler and hosttrace sets RULE_LAUNCH_COMPILE and
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# RULE_LAUNCH_LINK in CMake so that all compiler and link
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# commands are prefixed with this script followed by the
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# C++ compiler. Thus if $1 == $2 then we know the command
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# was intended for the C++ compiler and we discard both
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# $1 and $2 and redirect the command to linker.
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# If $1 != $2 then we know that the command was not intended
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# for the C++ compiler and we just discard $1 and launch
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# the original command. Examples of when $2 will not equal
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# $1 are 'ar', 'cmake', etc. during the linking phase
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#
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# emit a message about the underlying command executed
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: ${DEBUG:=0}
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: ${HOSTTRACE_DEBUG_LAUNCH_COMPILER:=${DEBUG}}
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debug-message()
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{
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if [ "${HOSTTRACE_DEBUG_LAUNCH_COMPILER}" -ne 0 ]; then
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echo -e "##### $(basename ${BASH_SOURCE[0]}) executing: \"$@\"... #####"
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fi
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}
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# if hosttrace compiler is not passed, someone is probably trying to invoke it directly
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if [ -z "${1}" ]; then
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echo -e "\n${BASH_SOURCE[0]} was invoked without the hosttrace compiler as the first argument."
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echo "This script is not indended to be directly invoked by any mechanism other"
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echo -e "than through a RULE_LAUNCH_COMPILE or RULE_LAUNCH_LINK property set in CMake.\n"
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exit 1
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fi
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# if hosttrace compiler is not passed, someone is probably trying to invoke it directly
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if [ -z "${2}" ]; then
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echo -e "\n${BASH_SOURCE[0]} was invoked without the C++ compiler as the second argument."
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echo "This script is not indended to be directly invoked by any mechanism other"
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echo -e "than through a RULE_LAUNCH_COMPILE or RULE_LAUNCH_LINK property set in CMake.\n"
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exit 1
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fi
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# if there aren't two args, this isn't necessarily invalid, just a bit strange
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if [ -z "${3}" ]; then exit 0; fi
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# store the hosttrace compiler
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HOSTTRACE_COMPILER=${1}
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# remove the hosttrace compiler from the arguments
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shift
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# store the expected C++ compiler
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CXX_COMPILER=${1}
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# remove the expected C++ compiler from the arguments
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shift
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if [[ "${CXX_COMPILER}" != "${1}" ]]; then
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debug-message $@
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# the command does not depend on hosttrace so just execute the command w/o re-directing to ${HOSTTRACE_COMPILER}
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eval $@
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else
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# the executable is the C++ compiler, so we need to re-direct to ${HOSTTRACE_COMPILER}
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if [ ! -f "${HOSTTRACE_COMPILER}" ]; then
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echo -e "\nError: the compiler redirect for hosttrace was not found at ${HOSTTRACE_COMPILER}\n"
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exit 1
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fi
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# discard the compiler from the command
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shift
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debug-message ${HOSTTRACE_COMPILER} $@
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# execute ${HOSTTRACE_COMPILER} (again, usually nvcc_wrapper)
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${HOSTTRACE_COMPILER} $@
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fi
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