mirror of
https://github.com/correl/rebar.git
synced 2024-11-23 19:19:54 +00:00
Basic implementation of port compiler is now complete
This commit is contained in:
Dave Smith
parent
dbd576fc33
commit
d885b1c04c
1 changed files with 171 additions and 76 deletions
|
|
@ -33,13 +33,42 @@
|
|||
%% Public API
|
||||
%% ===================================================================
|
||||
|
||||
%% Port driver name - determined by app name
|
||||
%% Source files (or c_src/*.c by default)
|
||||
%% Pre-compile hook (optional)
|
||||
%% Env variables
|
||||
%% Supported configuration variables:
|
||||
%%
|
||||
%% * port_sources - Erlang list of files and/or wildcard strings to be compiled
|
||||
%%
|
||||
%% * port_envs - Erlang list of key/value pairs which will control the environment when
|
||||
%% running the compiler and linker. By default, the following variables
|
||||
%% are defined:
|
||||
%% CC - C compiler
|
||||
%% CXX - C++ compiler
|
||||
%% CFLAGS - C compiler
|
||||
%% CXXFLAGS - C++ compiler
|
||||
%% LDFLAGS - Link flags
|
||||
%% DRIVER_CFLAGS - default -I paths for erts and ei
|
||||
%% DRIVER_LDFLAGS - default -L and -lerl_interface -lei
|
||||
%%
|
||||
%% Note that if you wish to extend (vs. replace) these variables, you MUST
|
||||
%% include a shell-style reference in your definition. E.g. to extend CFLAGS,
|
||||
%% do something like:
|
||||
%%
|
||||
%% {port_envs, [{"CFLAGS", "$CFLAGS -MyOtherOptions"}]}
|
||||
%%
|
||||
%% It is also possible to specify platform specific options by specifying a triplet
|
||||
%% where the first string is a regex that is checked against erlang's system architecture
|
||||
%% string. E.g. to specify a CFLAG that only applies to x86_64 on linux do:
|
||||
%%
|
||||
%% {port_envs, [{"x86_64.*-linux", "CFLAGS", "$CFLAGS -X86Options"}]}
|
||||
%%
|
||||
%% * port_pre_script - Tuple which specifies a pre-compilation script to run, and a filename that
|
||||
%% exists as a result of the script running.
|
||||
%%
|
||||
%% * port_cleanup_script - String that specifies a script to run during cleanup. Use this to remove
|
||||
%% files/directories created by port_pre_script.
|
||||
%%
|
||||
|
||||
compile(Config, _AppFile) ->
|
||||
%% Compose list of sources from config file -- default to c_src/*.c
|
||||
compile(Config, AppFile) ->
|
||||
%% Compose list of sources from config file -- defaults to c_src/*.c
|
||||
Sources = expand_sources(rebar_config:get_list(Config, port_sources, ["c_src/*.c"]), []),
|
||||
case Sources of
|
||||
[] ->
|
||||
|
|
@ -47,24 +76,44 @@ compile(Config, _AppFile) ->
|
|||
_ ->
|
||||
%% Extract environment values from the config (if specified) and merge with the
|
||||
%% default for this operating system. This enables max flexibility for users.
|
||||
OperatingSystem = rebar_utils:get_os(),
|
||||
DefaultEnvs = driver_envs() ++ default_envs(OperatingSystem),
|
||||
OverrideEnvs = rebar_config:get_list(Config, port_env, []),
|
||||
DefaultEnvs = filter_envs(default_env(), []),
|
||||
OverrideEnvs = filter_envs(rebar_config:get_list(Config, port_envs, []), []),
|
||||
Env = merge_envs(OverrideEnvs, DefaultEnvs),
|
||||
|
||||
%% One or more files are available for building. Run the pre-compile hook, if necessary.
|
||||
% run_precompile_hook(Config),
|
||||
%% One or more files are available for building. Run the pre-compile hook, if
|
||||
%% necessary.
|
||||
run_precompile_hook(Config, Env),
|
||||
|
||||
%% Compile each of the sources
|
||||
compile_each(Sources, [], Config, Env),
|
||||
ok
|
||||
{NewBins, ExistingBins} = compile_each(Sources, Config, Env, [], []),
|
||||
|
||||
%% Finally, link everything together
|
||||
% do_link(Config, AppFile, Bins)
|
||||
%% Construct the driver name and make sure priv/ exists
|
||||
SoName = so_name(AppFile),
|
||||
ok = filelib:ensure_dir(SoName),
|
||||
|
||||
%% Only relink if necessary, given the SoName and list of new binaries
|
||||
case needs_link(SoName, NewBins) of
|
||||
true ->
|
||||
AllBins = string:join(NewBins ++ ExistingBins, " "),
|
||||
rebar_utils:sh_failfast(?FMT("$CC ~s $LDFLAGS $DRIVER_LDFLAGS -o ~s", [AllBins, SoName]), Env);
|
||||
false ->
|
||||
?INFO("Skipping relink of ~s\n", [SoName]),
|
||||
ok
|
||||
end
|
||||
end.
|
||||
|
||||
clean(Config, _AppFile) ->
|
||||
ok.
|
||||
clean(Config, AppFile) ->
|
||||
%% Build a list of sources so as to derive all the bins we generated
|
||||
Sources = expand_sources(rebar_config:get_list(Config, port_sources, ["c_src/*.c"]), []),
|
||||
rebar_file_utils:delete_each([source_to_bin(S) || S <- Sources]),
|
||||
|
||||
%% Delete the .so file
|
||||
rebar_file_utils:delete_each([so_name(AppFile)]),
|
||||
|
||||
%% Run the cleanup script, if it exists
|
||||
run_cleanup_hook(Config).
|
||||
|
||||
|
||||
|
||||
|
||||
%% ===================================================================
|
||||
|
|
@ -77,34 +126,50 @@ expand_sources([Spec | Rest], Acc) ->
|
|||
Acc2 = filelib:wildcard(Spec) ++ Acc,
|
||||
expand_sources(Rest, Acc2).
|
||||
|
||||
run_precompile_hook(Config, Env) ->
|
||||
case rebar_config:get(Config, port_pre_script, undefined) of
|
||||
undefined ->
|
||||
ok;
|
||||
{Script, BypassFileName} ->
|
||||
case filelib:is_regular(BypassFileName) of
|
||||
false ->
|
||||
?CONSOLE("Running ~s\n", [Script]),
|
||||
rebar_utils:sh_failfast(Script, Env);
|
||||
true ->
|
||||
?INFO("~s exists; not running ~s\n", [BypassFileName, Script])
|
||||
end
|
||||
end.
|
||||
|
||||
%% CC - C compiler
|
||||
%% CXX - C++ compiler
|
||||
%% CFLAGS - C compiler
|
||||
%% CXXFLAGS - C++ compiler
|
||||
%% LDFLAGS - Link flags
|
||||
|
||||
%% DRIVER_CFLAGS - default -I paths for erts and ei
|
||||
%% DRIVER_LDFLAGS - default -L and -lerl_interface -lei
|
||||
run_cleanup_hook(Config) ->
|
||||
case rebar_config:get(Config, port_cleanup_script, undefined) of
|
||||
undefined ->
|
||||
ok;
|
||||
Script ->
|
||||
?CONSOLE("Running ~s\n", [Script]),
|
||||
rebar_utils:sh_failfast(Script, [])
|
||||
end.
|
||||
|
||||
|
||||
compile_each([], Acc, Config, Env) ->
|
||||
lists:reverse(Acc);
|
||||
compile_each([Source | Rest], Acc, Config, Env) ->
|
||||
compile_each([], Config, Env, NewBins, ExistingBins) ->
|
||||
{lists:reverse(NewBins), lists:reverse(ExistingBins)};
|
||||
compile_each([Source | Rest], Config, Env, NewBins, ExistingBins) ->
|
||||
Ext = filename:extension(Source),
|
||||
Bin = filename:rootname(Source, Ext) ++ ".o",
|
||||
case needs_compile(Source, Bin) of
|
||||
true ->
|
||||
?CONSOLE("Compiling ~s\n", [Source]),
|
||||
Compiler = compiler(Ext),
|
||||
case compiler(Ext) of
|
||||
"$CC" ->
|
||||
sh(?FMT("$CC -c $CFLAGS $DRIVER_CFLAGS ~s ~s", [Source, Bin]), Env);
|
||||
rebar_utils:sh_failfast(?FMT("$CC -c $CFLAGS $DRIVER_CFLAGS ~s -o ~s", [Source, Bin]), Env);
|
||||
"$CXX" ->
|
||||
sh(?FMT("$CXX -c $CXXFLAGS $DRIVER_CFLAGS ~s ~s", [Source, Bin]), Env)
|
||||
rebar_utils:sh_failfast(?FMT("$CXX -c $CXXFLAGS $DRIVER_CFLAGS ~s -o ~s", [Source, Bin]), Env)
|
||||
end,
|
||||
compile_each(Rest, [Bin | Acc], Config, Env).
|
||||
|
||||
|
||||
compile_each(Rest, Config, Env, [Bin | NewBins], ExistingBins);
|
||||
|
||||
false ->
|
||||
?INFO("Skipping ~s\n", [Source]),
|
||||
compile_each(Rest, Config, Env, NewBins, [Bin | ExistingBins])
|
||||
end.
|
||||
|
||||
|
||||
|
||||
|
|
@ -112,6 +177,18 @@ needs_compile(Source, Bin) ->
|
|||
%% TODO: Generate depends using gcc -MM so we can also check for include changes
|
||||
filelib:last_modified(Bin) < filelib:last_modified(Source).
|
||||
|
||||
needs_link(SoName, []) ->
|
||||
filelib:last_modified(SoName) == 0;
|
||||
needs_link(SoName, NewBins) ->
|
||||
MaxLastMod = lists:max([filelib:last_modified(B) || B <- NewBins]),
|
||||
case filelib:last_modified(SoName) of
|
||||
0 ->
|
||||
true;
|
||||
Other ->
|
||||
?DEBUG("Checking ~p < ~p", [MaxLastMod, Other]),
|
||||
MaxLastMod < Other
|
||||
end.
|
||||
|
||||
merge_envs(OverrideEnvs, DefaultEnvs) ->
|
||||
orddict:merge(fun(Key, Override, Default) ->
|
||||
expand_env_variable(Override, Key, Default)
|
||||
|
|
@ -120,8 +197,9 @@ merge_envs(OverrideEnvs, DefaultEnvs) ->
|
|||
orddict:from_list(DefaultEnvs)).
|
||||
|
||||
|
||||
|
||||
|
||||
%%
|
||||
%% Choose a compiler variable, based on a provided extension
|
||||
%%
|
||||
compiler(".cc") -> "$CXX";
|
||||
compiler(".cp") -> "$CXX";
|
||||
compiler(".cxx") -> "$CXX";
|
||||
|
|
@ -131,49 +209,66 @@ compiler(".c++") -> "$CXX";
|
|||
compiler(".C") -> "$CXX";
|
||||
compiler(_) -> "$CC".
|
||||
|
||||
|
||||
%%
|
||||
%% Given env. variable FOO we want to expand all references to
|
||||
%% it in InStr. References can have two forms: $FOO and ${FOO}
|
||||
%%
|
||||
expand_env_variable(InStr, VarName, VarValue) ->
|
||||
%% Given env. variable FOO we want to expand all references to
|
||||
%% it in InStr. References can have two forms: $FOO and ${FOO}
|
||||
|
||||
R1 = re:replace(InStr, "\\\$" ++ VarName, VarValue),
|
||||
re:replace(R1, "\\\${" ++ VarName ++ "}", VarValue).
|
||||
re:replace(R1, "\\\${" ++ VarName ++ "}", VarValue, [{return, list}]).
|
||||
|
||||
|
||||
%%
|
||||
%% Filter a list of env vars such that only those which match the provided
|
||||
%% architecture regex (or do not have a regex) are returned.
|
||||
%%
|
||||
filter_envs([], Acc) ->
|
||||
lists:reverse(Acc);
|
||||
filter_envs([{ArchRegex, Key, Value} | Rest], Acc) ->
|
||||
case rebar_utils:is_arch(ArchRegex) of
|
||||
true ->
|
||||
filter_envs(Rest, [{Key, Value} | Acc]);
|
||||
false ->
|
||||
filter_envs(Rest, Acc)
|
||||
end;
|
||||
filter_envs([{Key, Value} | Rest], Acc) ->
|
||||
filter_envs(Rest, [{Key, Value} | Acc]).
|
||||
|
||||
|
||||
erts_dir() ->
|
||||
lists:concat([code:root_dir(), "/erts-", erlang:system_info(version)]).
|
||||
|
||||
driver_envs() ->
|
||||
[{"DRIVER_CFLAGS", lists:concat([" -I", code:lib_dir(erl_interface, include),
|
||||
default_env() ->
|
||||
[{"CC", "gcc"},
|
||||
{"CXX", "g++"},
|
||||
{"CFLAGS", "-g -Wall -fPIC"},
|
||||
{"CXXFLAGS", "-g -Wall -fPIC"},
|
||||
{"darwin", "LDFLAGS", "-bundle -flat_namespace -undefined suppress"},
|
||||
{"linux", "LDFLAGS", "-shared"},
|
||||
{"DRIVER_CFLAGS", lists:concat([" -I", code:lib_dir(erl_interface, include),
|
||||
" -I", filename:join(erts_dir(), include),
|
||||
" "])},
|
||||
{"DRIVER_LDFLAGS", lists:concat([" -L", code:lib_dir(erl_interface, lib),
|
||||
" -lerl_interface -lei"])}].
|
||||
|
||||
default_envs(darwin) ->
|
||||
[{"CC", "gcc"},
|
||||
{"CXX", "g++"},
|
||||
{"CFLAGS", "-g -Wall -fPIC"},
|
||||
{"LDFLAGS", "-bundle -flat_namespace -undefined surpress"}];
|
||||
default_envs(linux) ->
|
||||
[{"CC", "gcc"},
|
||||
{"CXX", "g++"},
|
||||
{"CFLAGS", "-g -Wall -fPIC"},
|
||||
{"LDFLAGS", "-shared"}];
|
||||
default_envs(Os) ->
|
||||
?ERROR("Unsupported operating system ~s: can not generate default build environment.\n", [Os]),
|
||||
?FAIL.
|
||||
|
||||
|
||||
sh(Command, Env) ->
|
||||
?CONSOLE("Cmd: ~p\n~p\n", [Command, Env]),
|
||||
Port = open_port({spawn, Command}, [{env, Env}, exit_status, {line, 16384},
|
||||
use_stdio, stderr_to_stdout]),
|
||||
sh_loop(Port).
|
||||
source_to_bin(Source) ->
|
||||
Ext = filename:extension(Source),
|
||||
filename:rootname(Source, Ext) ++ ".o".
|
||||
|
||||
so_name(AppFile) ->
|
||||
%% Get the app name, which we'll use to generate the linked port driver name
|
||||
case rebar_app_utils:load_app_file(AppFile) of
|
||||
{ok, AppName, _} ->
|
||||
ok;
|
||||
error ->
|
||||
AppName = undefined,
|
||||
?FAIL
|
||||
end,
|
||||
|
||||
%% Construct the driver name
|
||||
?FMT("priv/~s_drv.so", [AppName]).
|
||||
|
||||
sh_loop(Port) ->
|
||||
receive
|
||||
{Port, {data, {_, Line}}} ->
|
||||
?CONSOLE("> ~s\n", [Line]),
|
||||
sh_loop(Port);
|
||||
{Port, Other} ->
|
||||
?CONSOLE(">> ~p\n", [Other])
|
||||
end.
|
||||
|
|
|
|||
Loading…
Reference in a new issue