616 lines
19 KiB
Bash
616 lines
19 KiB
Bash
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#!/bin/bash
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###### Usage ##################################################################
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# This script is meant to be invoked by the 'source' command. The variable
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# bld_path should first be set to contain the path to the root folder of the
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# bld system:
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# bld_path="$(dirname $(realpath "$0"))"/<path-from-here-to-bld>
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# source "$bld_path/bld_core.sh"
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#
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#
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# The following bld functions form the core "bld commands":
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# bld_compile, bld_link, bld_lib, bld_unit
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#
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# And there are several more helper functions:
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# bld_print_implicit_opts, bld_load_local_opts
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#
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#
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# Signatures:
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# bld_compile <source-file> <zero-or-more-options>
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# bld_link <out-name> <one-or-more-source-files-objs-or-libs> -- <zero-or-more-options>
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# bld_lib <out-name> <one-or-more-source-files-or-objs> -- <zero-or-more-options>
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# bld_unit <source-file> <zero-or-more-options>
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#
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# bld_print_implicit_opts (no arguments)
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# bld_load_local_opts (no arguments)
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#
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#
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# Shared notes for all:
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# + Options are gathered from the command line, from the local context, and
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# in the case of the commands bld_compile and bld_unit, from the source file.
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# + Options in source files are specified between the strings //$ and //.
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# Object files and library files should be specified with the extensions
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# .obj and .lib respectively. The system automatically modifies the names to
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# match the naming used by the selected context.
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# + When the option "diagnostics" is included extra details will be printed
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# from the bld commands. Showing the full list of options, invokation lines,
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# and the build path.
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#
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# bld_compile:
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# + Creates an object file from a single source file via the selected compiler.
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#
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# bld_link:
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# + Creates executables and shared binaries from source files, object files,
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# and static libraries. First uses the bld_compile command on the source files.
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# Uses the selected linker.
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# + The output is a shared binary (.dll or .so) when the option "dll" is
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# included.
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#
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# bld_lib:
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# + Creates a static library from source files and object files. First uses
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# the bld_compile command on the source files. Uses the OS to determine the
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# correct archiver.
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#
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# bld_unit:
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# + Creates an executable (or shared binary) from a single source file.
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# This command essentially does a single bld_compile then bld_link. With
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# two differences:
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# 1. The options from the source file are visible to the bld_link.
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# 2. The name of the executable is determined either from the first option
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# in the list or from the source file name if there are no options.
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#
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# bld_print_implicit_opts:
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# + Shows the implicit options loaded from the local parameters script.
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#
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# bld_load_local_opts:
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# + It is possible and sometimes useful to modify the local parameters after
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# they are loaded to create certain kinds of build scripts. This function
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# resets the local parameters to their original states by rerunning the
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# local parameters script.
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###### Flags From Opts ########################################################
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function bld_flags_from_opts {
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###### parse arguments ####################################################
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local in_file=$1
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local opts=()
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for ((i=2; i<=$#; i+=1)); do
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opts+=(${!i})
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done
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###### load file ##########################################################
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local flags_raw=()
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IFS=$'\r\n' GLOBIGNORE='*' command eval 'flags_raw=($(cat $in_file))'
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###### filter #############################################################
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local flags=()
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for ((i=0;i<${#flags_raw[@]};i+=1)); do
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local flag=${flags_raw[i]}
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###### skip blanks and comments #######################################
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if [[ -z "${flag// }" ]]; then
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continue
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fi
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if [[ "${flag:0:1}" == "#" ]]; then
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continue
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fi
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###### parse line filters #############################################
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local line_filters=()
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while [[ $flag = *">"* ]]; do
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line_filters+=("${flag%%>*}")
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flag="${flag#*>}"
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done
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###### check filters ##################################################
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local can_include=1
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for ((j=0;j<${#line_filters[@]};j+=1)); do
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can_include=0
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for ((k=0;k<${#opts[@]};k+=1)); do
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if [[ ${opts[k]} = ${line_filters[j]} ]]; then
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can_include=1
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break
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fi
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done
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if [[ "$can_include" = "0" ]]; then
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break
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fi
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done
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if [[ "$can_include" = "1" ]]; then
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flags+=("${flag}")
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fi
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done
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echo "${flags[@]}"
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}
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###### Opts From Src ##########################################################
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function bld_opts_from_src {
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###### split file into tokens #############################################
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local in_file=$1
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local tokens=($(grep "//\\$" $in_file))
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###### parse ##############################################################
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local in_params_range="0"
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local params=()
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for ((i=0; i<${#tokens[@]}; i+=1)); do
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local string="${tokens[i]}"
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if [[ "$in_params_range" == "0" ]]; then
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if [[ "$string" == "//$" ]]; then
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in_params_range="1"
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fi
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elif [[ "$in_params_range" == "1" ]]; then
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if [[ "${string:0:2}" == "//" ]]; then
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break
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fi
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params+=($string)
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fi
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done
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echo "${params[@]}"
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}
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###### Dedup ##################################################################
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function bld_dedup {
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###### parse arguments ####################################################
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local in=()
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for ((i=1; i<=$#; i+=1)); do
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in+=(${!i})
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done
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###### dedup ##############################################################
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local out=()
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for ((i=0; i<${#in[@]}; i+=1)); do
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local string=${in[i]}
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local is_dup="0"
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for ((j=0; j<${#out[@]}; j+=1)); do
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if [[ "$string" == "${out[j]}" ]]; then
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is_dup="1"
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break
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fi
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done
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if [[ "$is_dup" == "0" ]]; then
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out+=($string)
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fi
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done
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echo "${out[@]}"
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}
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###### Has Opt ################################################################
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function bld_has_opt {
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###### parse arguments ####################################################
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local key_opt=$1
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local opts=()
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for ((i=2; i<=$#; i+=1)); do
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opts+=(${!i})
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done
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###### scan ###############################################################
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local has_key=0
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for ((i=0;i<${#opts[@]};i+=1)); do
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local opt=${opts[i]}
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if [[ "$opt" == "$key_opt" ]]; then
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has_key=1
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break
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fi
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done
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echo $has_key
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}
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###### Load Local Options #####################################################
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function bld_load_local_opts {
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###### os cracking ########################################################
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os="undefined"
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if [ "$OSTYPE" == "win32" ] ||
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[ "$OSTYPE" == "msys" ]; then
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os="windows"
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elif [ "$OSTYPE" == "linux-gnu" ]; then
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os="linux"
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elif [ "$OSTYPE" == "darwin" ]; then
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os="mac"
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fi
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###### load parameters from the local script ################################
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if [ -f "$local_path/bld_params.sh" ]; then
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source "$local_path/bld_params.sh"
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fi
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}
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###### Implicit Opts ##########################################################
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function bld_implicit_opts {
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echo $compiler $compile_mode $os $arch $linker $ctx_opts
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}
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###### Print Implicit Options #################################################
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function bld_print_implicit_opts {
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local opts=($(bld_implicit_opts))
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local bracketed=()
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for ((i=0; i<=${#opts[@]}; i+=1)); do
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local opt="${opts[i]}"
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if [ "$opt" != "" ]; then
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bracketed+=("[${opts[i]}]")
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fi
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done
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echo "${bracketed[@]}"
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}
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###### Compile ################################################################
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function bld_compile {
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###### parse arguments ####################################################
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local in_file=$1
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local opts=()
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for ((i=2; i<=$#; i+=1)); do
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opts+=(${!i})
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done
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if [ "$in_file" == "" ]; then
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echo "compile: missing input file"
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return 1
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fi
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###### finish in file #####################################################
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local final_in_file=$in_file
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###### finish options #####################################################
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local src_opts=($(bld_opts_from_src $final_in_file))
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local impl_opts=($(bld_implicit_opts))
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local all_opts=($(bld_dedup ${impl_opts[@]} ${opts[@]} ${src_opts[@]}))
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###### diagnostics ########################################################
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local diagnostics=$(bld_has_opt diagnostics ${all_opts[@]})
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###### out file name ######################################################
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local dot_ext_obj=$(bld_ext_obj)
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local file_base=${final_in_file##*/}
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local file_base_no_ext=${file_base%.*}
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local out_file="$file_base_no_ext$dot_ext_obj"
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###### get real flags #####################################################
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local flags=$(bld_flags_from_opts $compiler_flags_path ${all_opts[@]})
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###### move to output folder ##############################################
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mkdir -p "$build_path"
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cd $build_path
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if [ "$diagnostics" == "1" ]; then
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echo "build path: $build_path"
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fi
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###### delete existing object file ########################################
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rm -f "$out_file_base.o"
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rm -f "$out_file_base.obj"
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###### final flags ########################################################
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local final_flags="-c -I$src_path ${flags}"
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###### compile ############################################################
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if [ "$diagnostics" == "1" ]; then
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echo "cmp $final_in_file -- ${all_opts[@]}"
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echo $compiler "$final_in_file" $final_flags
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fi
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if [ "$compiler" == "clang" ]; then
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echo "$file_base"
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fi
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$compiler "$final_in_file" $final_flags
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# return of status from compiler is automatic here.
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}
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###### Link ###################################################################
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function bld_link {
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###### parse arguments ####################################################
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local out_name=$1
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local in_files=()
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for ((i=2; i<=$#; i+=1)); do
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if [ "${!i}" == "--" ]; then
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break
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fi
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in_files+=(${!i})
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done
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local opts=()
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for ((i+=1; i<=$#; i+=1)); do
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opts+=(${!i})
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done
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if [ "$out_name" == "" ]; then
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echo "link: missing output name"
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return 1
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fi
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if [ "${#in_files}" == "0" ]; then
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echo "link: missing input file(s)"
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return 1
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fi
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###### finish options #####################################################
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local impl_opts=($(bld_implicit_opts))
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local all_opts=($(bld_dedup ${opts[@]} ${impl_opts[@]}))
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###### diagnostics ########################################################
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local diagnostics=$(bld_has_opt diagnostics ${all_opts[@]})
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###### sort in files ######################################################
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local in_src=()
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local in_obj=()
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local in_lib=()
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for ((i=0; i<${#in_files[@]}; i+=1)); do
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local file="${in_files[i]}"
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local ext="${file##*.}"
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if [[ "$ext" == "c" || "$ext" == "cpp" ]]; then
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in_src+=($file)
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elif [[ "$ext" == "o" || "$ext" == "obj" ]]; then
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in_obj+=($file)
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elif [[ "$ext" == "lib" ]]; then
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in_lib+=($file)
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else
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echo "WARNING: ignoring unrecognized file type $file"
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fi
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done
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###### auto correct object files ##########################################
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local dot_ext_obj=$(bld_ext_obj)
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for ((i=0; i<${#in_obj[@]}; i+=1)); do
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local file_name="${in_obj[i]}"
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local base_name="${file_name%.*}"
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in_obj[$i]="$base_name$dot_ext_obj"
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done
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###### compile source files ###############################################
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for ((i=0; i<${#in_src[@]}; i+=1)); do
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bld_compile "${in_src[i]}" ${all_opts[@]}
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local status=$?
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if [ $status -ne 0 ]; then
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return $status
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fi
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done
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###### intermediate object files ##########################################
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local interm_obj=()
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for ((i=0; i<${#in_src[@]}; i+=1)); do
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local file_name="${in_src[i]}"
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local base_name="${file_name##*/}"
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local base_name_no_ext="${base_name%.*}"
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interm_obj+=($base_name_no_ext$dot_ext_obj)
|
||
|
|
done
|
||
|
|
|
||
|
|
###### get real flags #####################################################
|
||
|
|
local flags=$(bld_flags_from_opts $linker_flags_path ${all_opts[@]})
|
||
|
|
|
||
|
|
###### out file name ######################################################
|
||
|
|
local dot_ext_out=""
|
||
|
|
local is_dll=$(bld_has_opt dll ${all_opts[@]})
|
||
|
|
if [ "$is_dll" == "0" ]; then
|
||
|
|
dot_ext_out=$(bld_ext_exe)
|
||
|
|
else
|
||
|
|
dot_ext_out=$(bld_ext_dll)
|
||
|
|
fi
|
||
|
|
out_file="$out_name$dot_ext_out"
|
||
|
|
|
||
|
|
###### move to output folder ##############################################
|
||
|
|
mkdir -p "$build_path"
|
||
|
|
cd $build_path
|
||
|
|
if [ "$diagnostics" == "1" ]; then
|
||
|
|
echo "build path: $build_path"
|
||
|
|
fi
|
||
|
|
|
||
|
|
###### final files to linker ##############################################
|
||
|
|
local final_in_files="${interm_obj[@]} ${in_obj[@]} ${in_lib[@]}"
|
||
|
|
|
||
|
|
###### set first diagnostic string ########################################
|
||
|
|
local first_diagnostic_string="lnk $final_in_files -- ${all_opts[@]}"
|
||
|
|
|
||
|
|
###### link ###############################################################
|
||
|
|
local status=0
|
||
|
|
local invokation=""
|
||
|
|
if [[ "$linker" == "link" || "$linker" == "lld-link" ]]; then
|
||
|
|
invokation="$linker -OUT:$out_file $flags $final_in_files"
|
||
|
|
elif [ "$linker" == "clang" ]; then
|
||
|
|
invokation="$linker -o \"$out_file\" $flags $final_in_files"
|
||
|
|
else
|
||
|
|
echo "ERROR: invokation not defined for this linker"
|
||
|
|
status=1
|
||
|
|
fi
|
||
|
|
if [ "$invokation" != "" ]; then
|
||
|
|
if [ "$diagnostics" == "1" ]; then
|
||
|
|
echo $first_diagnostic_string
|
||
|
|
echo $invokation
|
||
|
|
fi
|
||
|
|
echo "$out_file"
|
||
|
|
$invokation
|
||
|
|
status=$?
|
||
|
|
fi
|
||
|
|
return $status
|
||
|
|
}
|
||
|
|
|
||
|
|
###### Library ################################################################
|
||
|
|
|
||
|
|
function bld_lib {
|
||
|
|
###### parse arguments ####################################################
|
||
|
|
local out_name=$1
|
||
|
|
local in_files=()
|
||
|
|
for ((i=2; i<=$#; i+=1)); do
|
||
|
|
if [ "${!i}" == "--" ]; then
|
||
|
|
break
|
||
|
|
fi
|
||
|
|
in_files+=(${!i})
|
||
|
|
done
|
||
|
|
local opts=()
|
||
|
|
for ((i+=1; i<=$#; i+=1)); do
|
||
|
|
opts+=(${!i})
|
||
|
|
done
|
||
|
|
if [ "$out_name" == "" ]; then
|
||
|
|
echo "lib: missing output name"
|
||
|
|
return 1
|
||
|
|
fi
|
||
|
|
if [ "${#in_files}" == "0" ]; then
|
||
|
|
echo "lib: missing input file(s)"
|
||
|
|
return 1
|
||
|
|
fi
|
||
|
|
|
||
|
|
###### finish options #####################################################
|
||
|
|
local impl_opts=($(bld_implicit_opts))
|
||
|
|
local all_opts=($(bld_dedup ${opts[@]} ${impl_opts[@]}))
|
||
|
|
|
||
|
|
###### diagnostics ########################################################
|
||
|
|
local diagnostics=$(bld_has_opt diagnostics ${all_opts[@]})
|
||
|
|
|
||
|
|
###### sort in files ######################################################
|
||
|
|
local in_src=()
|
||
|
|
local in_obj=()
|
||
|
|
for ((i=0; i<${#in_files[@]}; i+=1)); do
|
||
|
|
local file="${in_files[i]}"
|
||
|
|
local ext="${file##*.}"
|
||
|
|
if [[ "$ext" == "c" || "$ext" == "cpp" ]]; then
|
||
|
|
in_src+=($file)
|
||
|
|
elif [[ "$ext" == "o" || "$ext" == "obj" ]]; then
|
||
|
|
in_obj+=($file)
|
||
|
|
else
|
||
|
|
echo "WARNING: ingnoring unrecgonized file type $file"
|
||
|
|
fi
|
||
|
|
done
|
||
|
|
|
||
|
|
###### auto correct object files ##########################################
|
||
|
|
local dot_ext_obj=$(bld_ext_obj)
|
||
|
|
for ((i=0; i<${#in_obj[@]}; i+=1)); do
|
||
|
|
local file_name="${in_obj[i]}"
|
||
|
|
local base_name="${file_name%.*}"
|
||
|
|
in_obj[$i]=$base_name$dot_ext_obj
|
||
|
|
done
|
||
|
|
|
||
|
|
###### compile source files ###############################################
|
||
|
|
for ((i=0; i<${#in_src[@]}; i+=1)); do
|
||
|
|
bld_compile "${in_src[i]}" ${all_opts[@]}
|
||
|
|
local status=$?
|
||
|
|
if [ $status -ne 0 ]; then
|
||
|
|
return $status
|
||
|
|
fi
|
||
|
|
done
|
||
|
|
|
||
|
|
###### intermediate object files ##########################################
|
||
|
|
local interm_obj=()
|
||
|
|
for ((i=0; i<${#in_src[@]}; i+=1)); do
|
||
|
|
local file_name="${in_src[i]}"
|
||
|
|
local base_name="${file_name##*/}"
|
||
|
|
local base_name_no_ext="${base_name%.*}"
|
||
|
|
interm_obj+=($base_name_no_ext$dot_ext_obj)
|
||
|
|
done
|
||
|
|
|
||
|
|
###### out file name ######################################################
|
||
|
|
local out_file=""
|
||
|
|
if [ "$os" == "windows" ]; then
|
||
|
|
out_file="$out_name.lib"
|
||
|
|
elif [ "$os" == "linux" || "$os" == "mac" ]; then
|
||
|
|
out_file="lib$out_name.a"
|
||
|
|
else
|
||
|
|
echo "ERROR: static library output not defined for OS: $os"
|
||
|
|
fi
|
||
|
|
|
||
|
|
###### final library build input files ####################################
|
||
|
|
local final_in_files="${interm_obj[@]} ${in_obj[@]}"
|
||
|
|
|
||
|
|
###### move to output folder ##############################################
|
||
|
|
mkdir -p "$build_path"
|
||
|
|
cd $build_path
|
||
|
|
if [ "$diagnostics" == "1" ]; then
|
||
|
|
echo "build path: $build_path"
|
||
|
|
fi
|
||
|
|
|
||
|
|
###### set first diagnostic string ########################################
|
||
|
|
local first_diagnostic_string="lib $final_in_files -- ${all_opts[@]}"
|
||
|
|
|
||
|
|
###### build library ######################################################
|
||
|
|
local status=0
|
||
|
|
if [ "$os" == "windows" ]; then
|
||
|
|
if [ "$diagnostics" == "1" ]; then
|
||
|
|
echo $first_diagnostic_string
|
||
|
|
echo lib -nologo -OUT:"$out_file" $final_in_files
|
||
|
|
fi
|
||
|
|
echo "$out_file"
|
||
|
|
lib -nologo -OUT:"$out_file" $final_in_files
|
||
|
|
status=$?
|
||
|
|
elif [ "$os" == "linux" || "$os" == "mac" ]; then
|
||
|
|
# TODO(allen): invoke ar here - make sure to delete the original .a first
|
||
|
|
# because ar does not (seem) to replace the output file, just append
|
||
|
|
echo "TODO: implement ar path in bld_core.sh:bld_lib"
|
||
|
|
status=1
|
||
|
|
else
|
||
|
|
echo "ERROR: static library invokation not defined for OS: $os"
|
||
|
|
status=1
|
||
|
|
fi
|
||
|
|
|
||
|
|
return $status
|
||
|
|
}
|
||
|
|
|
||
|
|
###### Unit ###################################################################
|
||
|
|
|
||
|
|
function bld_unit {
|
||
|
|
###### parse arguments ####################################################
|
||
|
|
local main_file=$1
|
||
|
|
local opts=()
|
||
|
|
for ((i=2; i<=$#; i+=1)); do
|
||
|
|
opts+=(${!i})
|
||
|
|
done
|
||
|
|
if [ "$main_file" == "" ]; then
|
||
|
|
echo "unit: missing main file"
|
||
|
|
return 1
|
||
|
|
fi
|
||
|
|
|
||
|
|
###### set out name #######################################################
|
||
|
|
local out_name=""
|
||
|
|
if [ "${#opts}" == "0" ]; then
|
||
|
|
local file_base=${main_file##*/}
|
||
|
|
local file_base_no_ext=${file_base%.*}
|
||
|
|
out_name=$file_base_no_ext
|
||
|
|
else
|
||
|
|
out_name="${opts[0]}"
|
||
|
|
fi
|
||
|
|
|
||
|
|
###### finish options #####################################################
|
||
|
|
local src_opts=$(bld_opts_from_src $main_file)
|
||
|
|
local impl_opts=($(bld_implicit_opts))
|
||
|
|
local all_opts=($(bld_dedup $out_name ${opts[@]} ${src_opts[@]} ${impl_opts[@]}))
|
||
|
|
|
||
|
|
###### link ###############################################################
|
||
|
|
bld_link $out_name $main_file ${in_files[@]} -- ${all_opts[@]}
|
||
|
|
}
|
||
|
|
|
||
|
|
###### Special Ifs ############################################################
|
||
|
|
|
||
|
|
function bld_ext_obj {
|
||
|
|
echo $(bld_flags_from_opts $file_extensions_path $compiler obj)
|
||
|
|
}
|
||
|
|
function bld_ext_exe {
|
||
|
|
echo $(bld_flags_from_opts $file_extensions_path $os exe)
|
||
|
|
}
|
||
|
|
function bld_ext_dll {
|
||
|
|
echo $(bld_flags_from_opts $file_extensions_path $os dll)
|
||
|
|
}
|
||
|
|
|
||
|
|
###### Get Paths ##############################################################
|
||
|
|
if [ ! -f "$bld_path/bld_core.sh" ]; then
|
||
|
|
echo bld_path set incorrectly
|
||
|
|
exit 1
|
||
|
|
fi
|
||
|
|
local_path="$bld_path/local"
|
||
|
|
|
||
|
|
###### Load Locals ############################################################
|
||
|
|
bld_load_local_opts
|
||
|
|
|
||
|
|
|
||
|
|
# NOTES - for future iterations of this system
|
||
|
|
# + The "source" approach creates problems for locating the bld path because
|
||
|
|
# when a script is "sourced" it inherits the $0 from the "caller". Two ideas:
|
||
|
|
# 1. There may be a way to fix this issue relating to passing parameters
|
||
|
|
# to the "sourced" script
|
||
|
|
# 2. Setup a locator script that can be called the normal way before sourcing
|
||
|
|
# the core to save the bld_path for the core to see
|
||
|
|
# + It would be nice to include an automatic slash fixer \ -> /
|
||
|
|
|