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platform_build_soong
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Fix evaluation order of (Cfi|Memtag) exclude paths. 

Before this change, exclude paths disabled sanitization of targets that
would otherwise be enabled by SanitizeDevice product variable (aka
SANITIZE_TARGET).

With this change, in addition to the above logic, exclude path disables
sanitization of targets that would otherwise be enabled by the
corresponding include path.

Effectively, this change disables sanitization of targets that are
covered by *both* include and exclude paths.

Test: build/soong/cc/cc_test.go
Bug: b/184976817
Change-Id: I96f1e2a808d88b352b92b7490fa1df5c010314c3
This commit is contained in:
Evgenii Stepanov 2021-04-09 14:33:10 -07:00
parent 41cca851d9
commit 779b64ec5d
2 changed files with 6 additions and 5 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

6
android/config.go
View File

@ -1259,7 +1259,7 @@ func (c *config) CFIEnabledForPath(path string) bool {
if len(c.productVariables.CFIIncludePaths) == 0 {
return false
}
return HasAnyPrefix(path, c.productVariables.CFIIncludePaths)
return HasAnyPrefix(path, c.productVariables.CFIIncludePaths) && !c.CFIDisabledForPath(path)
}
func (c *config) MemtagHeapDisabledForPath(path string) bool {
@ -1273,14 +1273,14 @@ func (c *config) MemtagHeapAsyncEnabledForPath(path string) bool {
if len(c.productVariables.MemtagHeapAsyncIncludePaths) == 0 {
return false
}
return HasAnyPrefix(path, c.productVariables.MemtagHeapAsyncIncludePaths)
return HasAnyPrefix(path, c.productVariables.MemtagHeapAsyncIncludePaths) && !c.MemtagHeapDisabledForPath(path)
}
func (c *config) MemtagHeapSyncEnabledForPath(path string) bool {
if len(c.productVariables.MemtagHeapSyncIncludePaths) == 0 {
return false
}
return HasAnyPrefix(path, c.productVariables.MemtagHeapSyncIncludePaths)
return HasAnyPrefix(path, c.productVariables.MemtagHeapSyncIncludePaths) && !c.MemtagHeapDisabledForPath(path)
}
func (c *config) VendorConfig(name string) VendorConfig {

5
cc/cc_test.go
View File

@ -3921,8 +3921,9 @@ var prepareForTestWithMemtagHeap = android.GroupFixturePreparers(
}),
android.FixtureModifyProductVariables(func(variables android.FixtureProductVariables) {
variables.MemtagHeapExcludePaths = []string{"subdir_exclude"}
variables.MemtagHeapSyncIncludePaths = []string{"subdir_sync"}
variables.MemtagHeapAsyncIncludePaths = []string{"subdir_async"}
// "subdir_exclude" is covered by both include and exclude paths. Exclude wins.
variables.MemtagHeapSyncIncludePaths = []string{"subdir_sync", "subdir_exclude"}
variables.MemtagHeapAsyncIncludePaths = []string{"subdir_async", "subdir_exclude"}
}),
)