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-rw-r--r--scripts/Makefile.autofdo6
-rw-r--r--scripts/Makefile.build1
-rw-r--r--scripts/Makefile.kasan2
-rw-r--r--scripts/Makefile.lib3
-rwxr-xr-xscripts/generate_rust_analyzer.py38
5 files changed, 41 insertions, 9 deletions
diff --git a/scripts/Makefile.autofdo b/scripts/Makefile.autofdo
index 1caf2457e585..1442043da139 100644
--- a/scripts/Makefile.autofdo
+++ b/scripts/Makefile.autofdo
@@ -3,14 +3,18 @@
# Enable available and selected Clang AutoFDO features.
CFLAGS_AUTOFDO_CLANG := -fdebug-info-for-profiling -mllvm -enable-fs-discriminator=true -mllvm -improved-fs-discriminator=true
+RUSTFLAGS_AUTOFDO_CLANG := $(if $(call rustc-min-version,109800),-Zdebuginfo-for-profiling,-Zdebug-info-for-profiling) -Cllvm-args=-enable-fs-discriminator=true -Cllvm-args=-improved-fs-discriminator=true
ifndef CONFIG_DEBUG_INFO
CFLAGS_AUTOFDO_CLANG += -gmlt
+ RUSTFLAGS_AUTOFDO_CLANG += -Cdebuginfo=line-tables-only
endif
ifdef CLANG_AUTOFDO_PROFILE
CFLAGS_AUTOFDO_CLANG += -fprofile-sample-use=$(CLANG_AUTOFDO_PROFILE) -ffunction-sections
CFLAGS_AUTOFDO_CLANG += -fsplit-machine-functions
+ RUSTFLAGS_AUTOFDO_CLANG += -Zprofile-sample-use=$(CLANG_AUTOFDO_PROFILE) -Zfunction-sections=y
+ RUSTFLAGS_AUTOFDO_CLANG += -Cllvm-args=-split-machine-functions
endif
ifdef CONFIG_LTO_CLANG_THIN
@@ -21,4 +25,4 @@ ifdef CONFIG_LTO_CLANG_THIN
KBUILD_LDFLAGS += -plugin-opt=-split-machine-functions
endif
-export CFLAGS_AUTOFDO_CLANG
+export CFLAGS_AUTOFDO_CLANG RUSTFLAGS_AUTOFDO_CLANG
diff --git a/scripts/Makefile.build b/scripts/Makefile.build
index 3498d25b15e8..911745743246 100644
--- a/scripts/Makefile.build
+++ b/scripts/Makefile.build
@@ -329,6 +329,7 @@ rust_common_cmd = \
-Zcrate-attr=no_std \
-Zcrate-attr='feature($(rust_allowed_features))' \
-Zunstable-options --extern pin_init --extern kernel \
+ --extern zerocopy --extern zerocopy_derive \
--crate-type rlib -L $(objtree)/rust/ \
--sysroot=/dev/null \
--out-dir $(dir $@) --emit=dep-info=$(depfile)
diff --git a/scripts/Makefile.kasan b/scripts/Makefile.kasan
index 0ba2aac3b8dc..91504e81247a 100644
--- a/scripts/Makefile.kasan
+++ b/scripts/Makefile.kasan
@@ -71,8 +71,6 @@ ifdef CONFIG_KASAN_SW_TAGS
CFLAGS_KASAN := -fsanitize=kernel-hwaddress
-# This sets flags that will enable SW_TAGS KASAN once enabled in Rust. These
-# will not work today, and is guarded against in dependencies for CONFIG_RUST.
RUSTFLAGS_KASAN := -Zsanitizer=kernel-hwaddress \
-Zsanitizer-recover=kernel-hwaddress
diff --git a/scripts/Makefile.lib b/scripts/Makefile.lib
index 86e1428cc55d..154a64679850 100644
--- a/scripts/Makefile.lib
+++ b/scripts/Makefile.lib
@@ -123,6 +123,9 @@ ifeq ($(CONFIG_AUTOFDO_CLANG),y)
_c_flags += $(if $(patsubst n%,, \
$(AUTOFDO_PROFILE_$(target-stem).o)$(AUTOFDO_PROFILE)$(is-kernel-object)), \
$(CFLAGS_AUTOFDO_CLANG))
+_rust_flags += $(if $(patsubst n%,, \
+ $(AUTOFDO_PROFILE_$(target-stem).o)$(AUTOFDO_PROFILE)$(is-kernel-object)), \
+ $(RUSTFLAGS_AUTOFDO_CLANG))
endif
#
diff --git a/scripts/generate_rust_analyzer.py b/scripts/generate_rust_analyzer.py
index d5f9a0ca742c..dc1219736f77 100755
--- a/scripts/generate_rust_analyzer.py
+++ b/scripts/generate_rust_analyzer.py
@@ -26,6 +26,14 @@ def args_crates_cfgs(cfgs: List[str]) -> Dict[str, List[str]]:
return crates_cfgs
+def args_crates_envs(envs: List[str]) -> Dict[str, Dict[str, str]]:
+ crates_envs = {}
+ for env in envs:
+ crate, vals = env.split("=", 1)
+ crates_envs[crate] = dict(v.split("=", 1) for v in vals.split())
+
+ return crates_envs
+
class Dependency(TypedDict):
crate: int
name: str
@@ -61,6 +69,7 @@ def generate_crates(
sysroot_src: pathlib.Path,
external_src: Optional[pathlib.Path],
cfgs: List[str],
+ envs: List[str],
core_edition: str,
) -> List[Crate]:
# Generate the configuration list.
@@ -74,6 +83,7 @@ def generate_crates(
# Now fill the crates list.
crates: List[Crate] = []
crates_cfgs = args_crates_cfgs(cfgs)
+ crates_envs = args_crates_envs(envs)
def get_crate_name(path: pathlib.Path) -> str:
return invoke_rustc(["--print", "crate-name", str(path)])
@@ -92,6 +102,10 @@ def generate_crates(
is_workspace_member if is_workspace_member is not None else True
)
edition = edition if edition is not None else "2021"
+ crate_env = {
+ "RUST_MODFILE": "This is only for rust-analyzer",
+ **crates_envs.get(display_name, {}),
+ }
return {
"display_name": display_name,
"root_module": str(root_module),
@@ -99,9 +113,7 @@ def generate_crates(
"deps": deps,
"cfg": cfg,
"edition": edition,
- "env": {
- "RUST_MODFILE": "This is only for rust-analyzer"
- }
+ "env": crate_env,
}
def append_proc_macro_crate(
@@ -240,6 +252,12 @@ def generate_crates(
[std, proc_macro, proc_macro2, quote, syn],
)
+ zerocopy_derive = append_proc_macro_crate(
+ "zerocopy_derive",
+ srctree / "rust" / "zerocopy-derive" / "lib.rs",
+ [std, proc_macro, proc_macro2, quote, syn],
+ )
+
build_error = append_crate(
"build_error",
srctree / "rust" / "build_error.rs",
@@ -264,6 +282,12 @@ def generate_crates(
[core, compiler_builtins],
)
+ zerocopy = append_crate(
+ "zerocopy",
+ srctree / "rust" / "zerocopy" / "src" / "lib.rs",
+ [core, compiler_builtins],
+ )
+
def append_crate_with_generated(
display_name: str,
deps: List[Dependency],
@@ -292,7 +316,7 @@ def generate_crates(
bindings = append_crate_with_generated("bindings", [core, ffi, pin_init])
uapi = append_crate_with_generated("uapi", [core, ffi, pin_init])
kernel = append_crate_with_generated(
- "kernel", [core, macros, build_error, pin_init, ffi, bindings, uapi]
+ "kernel", [core, macros, build_error, pin_init, ffi, bindings, uapi, zerocopy, zerocopy_derive]
)
scripts = srctree / "scripts"
@@ -337,7 +361,7 @@ def generate_crates(
append_crate(
crate_name,
path,
- [core, kernel, pin_init],
+ [core, kernel, pin_init, zerocopy, zerocopy_derive],
cfg=generated_cfg,
)
@@ -347,6 +371,7 @@ def main() -> None:
parser = argparse.ArgumentParser()
parser.add_argument('--verbose', '-v', action='store_true')
parser.add_argument('--cfgs', action='append', default=[])
+ parser.add_argument('--envs', action='append', default=[])
parser.add_argument("core_edition")
parser.add_argument("srctree", type=pathlib.Path)
parser.add_argument("objtree", type=pathlib.Path)
@@ -357,6 +382,7 @@ def main() -> None:
class Args(argparse.Namespace):
verbose: bool
cfgs: List[str]
+ envs: List[str]
srctree: pathlib.Path
objtree: pathlib.Path
sysroot: pathlib.Path
@@ -372,7 +398,7 @@ def main() -> None:
)
rust_project = {
- "crates": generate_crates(args.srctree, args.objtree, args.sysroot_src, args.exttree, args.cfgs, args.core_edition),
+ "crates": generate_crates(args.srctree, args.objtree, args.sysroot_src, args.exttree, args.cfgs, args.envs, args.core_edition),
"sysroot": str(args.sysroot),
}