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(soong) Add -fsanitize= argument to assembly flags.

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It allows use of sanitizer preprocessor macros (like __has_feature())
in assembly files.

Bug: 112438058
Test: SANITIZE_TARGET=hwaddress
Change-Id: Id3fed5492ab9473cbb13cd6c0485302412e8b1de
This commit is contained in:
Evgenii Stepanov
2018-08-31 12:54:33 -07:00
parent 2f7e3bb4d0
commit dbf1d4f884
2 changed files with 6 additions and 0 deletions
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1
cc/makevars.go
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@@ -130,6 +130,7 @@ func makeVarsProvider(ctx android.MakeVarsContext) {
ctx.Strict("HWADDRESS_SANITIZER_CONFIG_EXTRA_CFLAGS", strings.Join(hwasanCflags, " "))
ctx.Strict("CFI_EXTRA_CFLAGS", strings.Join(cfiCflags, " "))
ctx.Strict("CFI_EXTRA_ASFLAGS", strings.Join(cfiAsflags, " "))
ctx.Strict("CFI_EXTRA_LDFLAGS", strings.Join(cfiLdflags, " "))
ctx.Strict("INTEGER_OVERFLOW_EXTRA_CFLAGS", strings.Join(intOverflowCflags, " "))

5
cc/sanitize.go
View File

@@ -40,6 +40,9 @@ var (
cfiCflags = []string{"-flto", "-fsanitize-cfi-cross-dso",
"-fsanitize-blacklist=external/compiler-rt/lib/cfi/cfi_blacklist.txt"}
// -flto and -fvisibility are required by clang when -fsanitize=cfi is
// used, but have no effect on assembly files
cfiAsflags = []string{"-flto", "-fvisibility=default"}
cfiLdflags = []string{"-flto", "-fsanitize-cfi-cross-dso", "-fsanitize=cfi",
"-Wl,-plugin-opt,O1"}
cfiExportsMapPath = "build/soong/cc/config/cfi_exports.map"
@@ -460,6 +463,7 @@ func (sanitize *sanitize) flags(ctx ModuleContext, flags Flags) Flags {
sanitizers = append(sanitizers, "cfi")
flags.CFlags = append(flags.CFlags, cfiCflags...)
flags.AsFlags = append(flags.AsFlags, cfiAsflags...)
// Only append the default visibility flag if -fvisibility has not already been set
// to hidden.
if !inList("-fvisibility=hidden", flags.CFlags) {
@@ -495,6 +499,7 @@ func (sanitize *sanitize) flags(ctx ModuleContext, flags Flags) Flags {
sanitizeArg := "-fsanitize=" + strings.Join(sanitizers, ",")
flags.CFlags = append(flags.CFlags, sanitizeArg)
flags.AsFlags = append(flags.AsFlags, sanitizeArg)
if ctx.Host() {
flags.CFlags = append(flags.CFlags, "-fno-sanitize-recover=all")
flags.LdFlags = append(flags.LdFlags, sanitizeArg)