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|
--
-- gcc.lua
-- Provides GCC-specific configuration strings.
-- Copyright (c) 2002-2011 Jason Perkins and the Premake project
--
premake.gcc = { }
--
-- Set default tools
--
premake.gcc.cc = "gcc"
premake.gcc.cxx = "g++"
premake.gcc.ar = "ar"
premake.gcc.rc = "windres"
premake.gcc.llvm = false
--
-- Translation of Premake flags into GCC flags
--
local cflags =
{
EnableSSE = "-msse",
EnableSSE2 = "-msse2",
EnableAVX = "-mavx",
EnableAVX2 = "-mavx2",
PedanticWarnings = "-Wall -Wextra -pedantic",
ExtraWarnings = "-Wall -Wextra",
FatalWarnings = "-Werror",
FloatFast = "-ffast-math",
FloatStrict = "-ffloat-store",
NoFramePointer = "-fomit-frame-pointer",
Optimize = "-O2",
OptimizeSize = "-Os",
OptimizeSpeed = "-O3",
Symbols = "-g",
}
local cxxflags =
{
Cpp11 = "-std=c++11",
Cpp14 = "-std=c++14",
Cpp17 = "-std=c++17",
CppLatest = "-std=c++2a",
NoExceptions = "-fno-exceptions",
NoRTTI = "-fno-rtti",
UnsignedChar = "-funsigned-char",
}
local objcflags =
{
ObjcARC = "-fobjc-arc",
}
--
-- Map platforms to flags
--
premake.gcc.platforms =
{
Native = {
cppflags = "-MMD -MP",
},
x32 = {
cppflags = "-MMD -MP",
flags = "-m32",
},
x64 = {
cppflags = "-MMD -MP",
flags = "-m64",
},
Universal = {
ar = "libtool",
cppflags = "-MMD -MP",
flags = "-arch i386 -arch x86_64 -arch ppc -arch ppc64",
},
Universal32 = {
ar = "libtool",
cppflags = "-MMD -MP",
flags = "-arch i386 -arch ppc",
},
Universal64 = {
ar = "libtool",
cppflags = "-MMD -MP",
flags = "-arch x86_64 -arch ppc64",
},
PS3 = {
cc = "ppu-lv2-g++",
cxx = "ppu-lv2-g++",
ar = "ppu-lv2-ar",
cppflags = "-MMD -MP",
},
WiiDev = {
cppflags = "-MMD -MP -I$(LIBOGC_INC) $(MACHDEP)",
ldflags = "-L$(LIBOGC_LIB) $(MACHDEP)",
cfgsettings = [[
ifeq ($(strip $(DEVKITPPC)),)
$(error "DEVKITPPC environment variable is not set")'
endif
include $(DEVKITPPC)/wii_rules']],
},
Orbis = {
cc = "orbis-clang",
cxx = "orbis-clang++",
ar = "orbis-ar",
cppflags = "-MMD -MP",
},
Emscripten = {
cc = "$(EMSCRIPTEN)/emcc",
cxx = "$(EMSCRIPTEN)/em++",
ar = "$(EMSCRIPTEN)/emar",
cppflags = "-MMD -MP",
}
}
local platforms = premake.gcc.platforms
--
-- Returns a list of compiler flags, based on the supplied configuration.
--
function premake.gcc.getcppflags(cfg)
local flags = { }
table.insert(flags, platforms[cfg.platform].cppflags)
-- We want the -MP flag for dependency generation (creates phony rules
-- for headers, prevents make errors if file is later deleted)
if flags[1]:startswith("-MMD") then
table.insert(flags, "-MP")
end
return flags
end
function premake.gcc.getcflags(cfg)
local result = table.translate(cfg.flags, cflags)
table.insert(result, platforms[cfg.platform].flags)
if cfg.system ~= "windows" and cfg.kind == "SharedLib" then
table.insert(result, "-fPIC")
end
return result
end
function premake.gcc.getcxxflags(cfg)
local result = table.translate(cfg.flags, cxxflags)
return result
end
function premake.gcc.getobjcflags(cfg)
return table.translate(cfg.flags, objcflags)
end
--
-- Returns a list of linker flags, based on the supplied configuration.
--
function premake.gcc.getldflags(cfg)
local result = { }
-- OS X has a bug, see http://lists.apple.com/archives/Darwin-dev/2006/Sep/msg00084.html
if not cfg.flags.Symbols then
if cfg.system == "macosx" then
-- Issue#80
-- https://github.com/bkaradzic/genie/issues/80#issuecomment-100664007
-- table.insert(result, "-Wl,-x")
else
table.insert(result, "-s")
end
end
if cfg.kind == "Bundle" then
table.insert(result, "-bundle")
end
if cfg.kind == "SharedLib" then
if cfg.system == "macosx" then
table.insert(result, "-dynamiclib")
else
table.insert(result, "-shared")
end
if cfg.system == "windows" and not cfg.flags.NoImportLib then
table.insert(result, '-Wl,--out-implib="' .. cfg.linktarget.fullpath .. '"')
end
end
if cfg.kind == "WindowedApp" and cfg.system == "windows" then
table.insert(result, "-mwindows")
end
local platform = platforms[cfg.platform]
table.insert(result, platform.flags)
table.insert(result, platform.ldflags)
return result
end
--
-- Return a list of library search paths. Technically part of LDFLAGS but need to
-- be separated because of the way Visual Studio calls GCC for the PS3. See bug
-- #1729227 for background on why library paths must be split.
--
function premake.gcc.getlibdirflags(cfg)
local result = { }
for _, value in ipairs(premake.getlinks(cfg, "all", "directory")) do
table.insert(result, '-L\"' .. value .. '\"')
end
return result
end
--
-- Given a path, return true if it's considered a real path
-- to a library file, false otherwise.
-- p: path
--
function premake.gcc.islibfile(p)
if path.getextension(p) == ".a" then
return true
end
return false
end
--
-- Returns a list of project-relative paths to external library files.
-- This function examines the linker flags and returns any that seem to be
-- a real path to a library file (e.g. "path/to/a/library.a", but not "GL").
-- Useful for adding to targets to trigger a relink when an external static
-- library gets updated.
-- cfg: configuration
--
function premake.gcc.getlibfiles(cfg)
local result = {}
for _, value in ipairs(premake.getlinks(cfg, "system", "fullpath")) do
if premake.gcc.islibfile(value) then
table.insert(result, _MAKE.esc(value))
end
end
return result
end
--
-- This is poorly named: returns a list of linker flags for external
-- (i.e. system, or non-sibling) libraries. See bug #1729227 for
-- background on why the path must be split.
--
function premake.gcc.getlinkflags(cfg)
local result = {}
for _, value in ipairs(premake.getlinks(cfg, "system", "fullpath")) do
if premake.gcc.islibfile(value) then
value = path.rebase(value, cfg.project.location, cfg.location)
table.insert(result, _MAKE.esc(value))
elseif path.getextension(value) == ".framework" then
table.insert(result, '-framework ' .. _MAKE.esc(path.getbasename(value)))
else
table.insert(result, '-l' .. _MAKE.esc(path.getname(value)))
end
end
return result
end
--
-- Get the arguments for whole-archive linking.
--
function premake.gcc.wholearchive(lib)
if premake.gcc.llvm then
return {"-force_load", lib}
else
return {"-Wl,--whole-archive", lib, "-Wl,--no-whole-archive"}
end
end
--
-- Get flags for passing to AR before the target is appended to the commandline
-- prj: project
-- cfg: configuration
-- ndx: true if the final step of a split archive
--
function premake.gcc.getarchiveflags(prj, cfg, ndx)
local result = {}
if cfg.platform:startswith("Universal") then
if prj.options.ArchiveSplit then
error("gcc tool 'Universal*' platforms do not support split archives")
end
table.insert(result, '-o')
else
if (not prj.options.ArchiveSplit) then
if premake.gcc.llvm then
table.insert(result, 'rcs')
else
table.insert(result, '-rcs')
end
else
if premake.gcc.llvm then
if (not ndx) then
table.insert(result, 'qc')
else
table.insert(result, 'cs')
end
else
if (not ndx) then
table.insert(result, '-qc')
else
table.insert(result, '-cs')
end
end
end
end
return result
end
--
-- Decorate defines for the GCC command line.
--
function premake.gcc.getdefines(defines)
local result = { }
for _,def in ipairs(defines) do
table.insert(result, "-D" .. def)
end
return result
end
--
-- Decorate include file search paths for the GCC command line.
--
function premake.gcc.getincludedirs(includedirs)
local result = { }
for _,dir in ipairs(includedirs) do
table.insert(result, "-I\"" .. dir .. "\"")
end
return result
end
--
-- Decorate user include file search paths for the GCC command line.
--
function premake.gcc.getquoteincludedirs(includedirs)
local result = { }
for _,dir in ipairs(includedirs) do
table.insert(result, "-iquote \"" .. dir .. "\"")
end
return result
end
--
-- Decorate system include file search paths for the GCC command line.
--
function premake.gcc.getsystemincludedirs(includedirs)
local result = { }
for _,dir in ipairs(includedirs) do
table.insert(result, "-isystem \"" .. dir .. "\"")
end
return result
end
--
-- Return platform specific project and configuration level
-- makesettings blocks.
--
function premake.gcc.getcfgsettings(cfg)
return platforms[cfg.platform].cfgsettings
end
|