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package cc
import (
"sort"
"strings"
)
// Cflags that should be filtered out when compiling with clang
var clangUnknownCflags = sorted([]string{
"-finline-functions",
"-finline-limit=64",
"-fno-canonical-system-headers",
"-Wno-clobbered",
"-fno-devirtualize",
"-fno-tree-sra",
"-fprefetch-loop-arrays",
"-funswitch-loops",
"-Wmaybe-uninitialized",
"-Wno-error=clobbered",
"-Wno-error=maybe-uninitialized",
"-Wno-error=unused-but-set-parameter",
"-Wno-error=unused-but-set-variable",
"-Wno-free-nonheap-object",
"-Wno-literal-suffix",
"-Wno-maybe-uninitialized",
"-Wno-old-style-declaration",
"-Wno-psabi",
"-Wno-unused-but-set-parameter",
"-Wno-unused-but-set-variable",
"-Wno-unused-local-typedefs",
"-Wunused-but-set-parameter",
"-Wunused-but-set-variable",
"-fdiagnostics-color",
"-fdebug-prefix-map=/proc/self/cwd=",
// arm + arm64 + mips + mips64
"-fgcse-after-reload",
"-frerun-cse-after-loop",
"-frename-registers",
"-fno-strict-volatile-bitfields",
// arm + arm64
"-fno-align-jumps",
// arm
"-mthumb-interwork",
"-fno-builtin-sin",
"-fno-caller-saves",
"-fno-early-inlining",
"-fno-move-loop-invariants",
"-fno-partial-inlining",
"-fno-tree-copy-prop",
"-fno-tree-loop-optimize",
// mips + mips64
"-msynci",
"-mno-synci",
"-mno-fused-madd",
// x86 + x86_64
"-finline-limit=300",
"-fno-inline-functions-called-once",
"-mfpmath=sse",
"-mbionic",
})
func init() {
pctx.StaticVariable("clangExtraCflags", strings.Join([]string{
"-D__compiler_offsetof=__builtin_offsetof",
// Help catch common 32/64-bit errors.
"-Werror=int-conversion",
// Disable overly aggressive warning for macros defined with a leading underscore
// This happens in AndroidConfig.h, which is included nearly everywhere.
// TODO: can we remove this now?
"-Wno-reserved-id-macro",
// Disable overly aggressive warning for format strings.
// Bug: 20148343
"-Wno-format-pedantic",
// Workaround for ccache with clang.
// See http://petereisentraut.blogspot.com/2011/05/ccache-and-clang.html.
"-Wno-unused-command-line-argument",
// Disable -Winconsistent-missing-override until we can clean up the existing
// codebase for it.
"-Wno-inconsistent-missing-override",
// Force clang to always output color diagnostics. Ninja will strip the ANSI
// color codes if it is not running in a terminal.
"-fcolor-diagnostics",
}, " "))
pctx.StaticVariable("clangExtraConlyflags", strings.Join([]string{
"-std=gnu99",
}, " "))
pctx.StaticVariable("clangExtraTargetCflags", strings.Join([]string{
"-nostdlibinc",
}, " "))
}
func clangFilterUnknownCflags(cflags []string) []string {
ret := make([]string, 0, len(cflags))
for _, f := range cflags {
if !inListSorted(f, clangUnknownCflags) {
ret = append(ret, f)
}
}
return ret
}
func inListSorted(s string, list []string) bool {
for _, l := range list {
if s == l {
return true
} else if s < l {
return false
}
}
return false
}
func sorted(list []string) []string {
sort.Strings(list)
return list
}
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