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-rw-r--r--absl/copts/copts.py218
1 files changed, 122 insertions, 96 deletions
diff --git a/absl/copts/copts.py b/absl/copts/copts.py
index 732af9ea..b7f68c7d 100644
--- a/absl/copts/copts.py
+++ b/absl/copts/copts.py
@@ -11,12 +11,76 @@ The generated copts are consumed by configure_copts.bzl and
AbseilConfigureCopts.cmake.
"""
-# /Wall with msvc includes unhelpful warnings such as C4711, C4710, ...
-MSVC_BIG_WARNING_FLAGS = [
- "/W3",
+ABSL_GCC_FLAGS = [
+ "-Wall",
+ "-Wextra",
+ "-Wcast-qual",
+ "-Wconversion-null",
+ "-Wformat-security",
+ "-Wmissing-declarations",
+ "-Woverlength-strings",
+ "-Wpointer-arith",
+ "-Wundef",
+ "-Wunused-local-typedefs",
+ "-Wunused-result",
+ "-Wvarargs",
+ "-Wvla", # variable-length array
+ "-Wwrite-strings",
+ # Don't define min and max macros (Build on Windows using gcc)
+ "-DNOMINMAX",
+]
+
+ABSL_GCC_TEST_ADDITIONAL_FLAGS = [
+ "-Wno-deprecated-declarations",
+ "-Wno-missing-declarations",
+ "-Wno-sign-compare",
+ "-Wno-unused-function",
+ "-Wno-unused-parameter",
+ "-Wno-unused-private-field",
]
-LLVM_TEST_DISABLE_WARNINGS_FLAGS = [
+ABSL_LLVM_FLAGS = [
+ "-Wall",
+ "-Wextra",
+ "-Wcast-qual",
+ "-Wconversion",
+ "-Wfloat-overflow-conversion",
+ "-Wfloat-zero-conversion",
+ "-Wfor-loop-analysis",
+ "-Wformat-security",
+ "-Wgnu-redeclared-enum",
+ "-Winfinite-recursion",
+ "-Winvalid-constexpr",
+ "-Wliteral-conversion",
+ "-Wmissing-declarations",
+ "-Woverlength-strings",
+ "-Wpointer-arith",
+ "-Wself-assign",
+ "-Wshadow-all",
+ "-Wstring-conversion",
+ "-Wtautological-overlap-compare",
+ "-Wtautological-unsigned-zero-compare",
+ "-Wundef",
+ "-Wuninitialized",
+ "-Wunreachable-code",
+ "-Wunused-comparison",
+ "-Wunused-local-typedefs",
+ "-Wunused-result",
+ "-Wvla",
+ "-Wwrite-strings",
+ # Warnings that are enabled by group warning flags like -Wall that we
+ # explicitly disable.
+ "-Wno-float-conversion",
+ "-Wno-implicit-float-conversion",
+ "-Wno-implicit-int-float-conversion",
+ # Disable warnings on unknown warning flags (when warning flags are
+ # unknown on older compiler versions)
+ "-Wno-unknown-warning-option",
+ # Don't define min and max macros (Build on Windows using clang)
+ "-DNOMINMAX",
+]
+
+ABSL_LLVM_TEST_ADDITIONAL_FLAGS = [
"-Wno-deprecated-declarations",
"-Wno-implicit-int-conversion",
"-Wno-missing-prototypes",
@@ -36,6 +100,28 @@ LLVM_TEST_DISABLE_WARNINGS_FLAGS = [
"-Wno-gnu-zero-variadic-macro-arguments",
]
+# /Wall with msvc includes unhelpful warnings such as C4711, C4710, ...
+MSVC_BIG_WARNING_FLAGS = [
+ "/W3",
+]
+
+MSVC_WARNING_FLAGS = [
+ # Increase the number of sections available in object files
+ "/bigobj",
+ "/wd4005", # macro-redefinition
+ "/wd4068", # unknown pragma
+ # qualifier applied to function type has no meaning; ignored
+ "/wd4180",
+ # conversion from 'type1' to 'type2', possible loss of data
+ "/wd4244",
+ # conversion from 'size_t' to 'type', possible loss of data
+ "/wd4267",
+ # The decorated name was longer than the compiler limit
+ "/wd4503",
+ # forcing value to bool 'true' or 'false' (performance warning)
+ "/wd4800",
+]
+
MSVC_DEFINES = [
"/DNOMINMAX", # Don't define min and max macros (windows.h)
# Don't bloat namespace with incompatible winsock versions.
@@ -47,103 +133,43 @@ MSVC_DEFINES = [
"/D_ENABLE_EXTENDED_ALIGNED_STORAGE",
]
+
+def GccStyleFilterAndCombine(default_flags, test_flags):
+ """Merges default_flags and test_flags for GCC and LLVM.
+
+ Args:
+ default_flags: A list of default compiler flags
+ test_flags: A list of flags that are only used in tests
+
+ Returns:
+ A combined list of default_flags and test_flags, but with all flags of the
+ form '-Wwarning' removed if test_flags contains a flag of the form
+ '-Wno-warning'
+ """
+ remove = set(["-W" + f[5:] for f in test_flags if f[:5] == "-Wno-"])
+ return [f for f in default_flags if f not in remove] + test_flags
+
COPT_VARS = {
- "ABSL_GCC_FLAGS": [
- "-Wall",
- "-Wextra",
- "-Wcast-qual",
- "-Wconversion-null",
- "-Wformat-security",
- "-Wmissing-declarations",
- "-Woverlength-strings",
- "-Wpointer-arith",
- "-Wundef",
- "-Wunused-local-typedefs",
- "-Wunused-result",
- "-Wvarargs",
- "-Wvla", # variable-length array
- "-Wwrite-strings",
- # Don't define min and max macros (Build on Windows using gcc)
- "-DNOMINMAX",
- ],
- "ABSL_GCC_TEST_FLAGS": [
- "-Wno-deprecated-declarations",
- "-Wno-missing-declarations",
- "-Wno-sign-compare",
- "-Wno-unused-function",
- "-Wno-unused-parameter",
- "-Wno-unused-private-field",
- ],
- "ABSL_LLVM_FLAGS": [
- "-Wall",
- "-Wextra",
- "-Wcast-qual",
- "-Wconversion",
- "-Wfloat-overflow-conversion",
- "-Wfloat-zero-conversion",
- "-Wfor-loop-analysis",
- "-Wformat-security",
- "-Wgnu-redeclared-enum",
- "-Winfinite-recursion",
- "-Winvalid-constexpr",
- "-Wliteral-conversion",
- "-Wmissing-declarations",
- "-Woverlength-strings",
- "-Wpointer-arith",
- "-Wself-assign",
- "-Wshadow-all",
- "-Wstring-conversion",
- "-Wtautological-overlap-compare",
- "-Wtautological-unsigned-zero-compare",
- "-Wundef",
- "-Wuninitialized",
- "-Wunreachable-code",
- "-Wunused-comparison",
- "-Wunused-local-typedefs",
- "-Wunused-result",
- "-Wvla",
- "-Wwrite-strings",
- # Warnings that are enabled by group warning flags like -Wall that we
- # explicitly disable.
- "-Wno-float-conversion",
- "-Wno-implicit-float-conversion",
- "-Wno-implicit-int-float-conversion",
- # Disable warnings on unknown warning flags (when warning flags are
- # unknown on older compiler versions)
- "-Wno-unknown-warning-option",
- # Don't define min and max macros (Build on Windows using clang)
- "-DNOMINMAX",
- ],
- "ABSL_LLVM_TEST_FLAGS":
- LLVM_TEST_DISABLE_WARNINGS_FLAGS,
+ "ABSL_GCC_FLAGS": ABSL_GCC_FLAGS,
+ "ABSL_GCC_TEST_FLAGS": GccStyleFilterAndCombine(
+ ABSL_GCC_FLAGS, ABSL_GCC_TEST_ADDITIONAL_FLAGS),
+ "ABSL_LLVM_FLAGS": ABSL_LLVM_FLAGS,
+ "ABSL_LLVM_TEST_FLAGS": GccStyleFilterAndCombine(
+ ABSL_LLVM_FLAGS, ABSL_LLVM_TEST_ADDITIONAL_FLAGS),
"ABSL_CLANG_CL_FLAGS":
- (MSVC_BIG_WARNING_FLAGS + MSVC_DEFINES),
+ MSVC_BIG_WARNING_FLAGS + MSVC_DEFINES,
"ABSL_CLANG_CL_TEST_FLAGS":
- LLVM_TEST_DISABLE_WARNINGS_FLAGS,
+ MSVC_BIG_WARNING_FLAGS + MSVC_DEFINES + ABSL_LLVM_TEST_ADDITIONAL_FLAGS,
"ABSL_MSVC_FLAGS":
- MSVC_BIG_WARNING_FLAGS + MSVC_DEFINES + [
- # Increase the number of sections available in object files
- "/bigobj",
- "/wd4005", # macro-redefinition
- "/wd4068", # unknown pragma
- # qualifier applied to function type has no meaning; ignored
- "/wd4180",
- # conversion from 'type1' to 'type2', possible loss of data
- "/wd4244",
- # conversion from 'size_t' to 'type', possible loss of data
- "/wd4267",
- # The decorated name was longer than the compiler limit
- "/wd4503",
- # forcing value to bool 'true' or 'false' (performance warning)
- "/wd4800",
+ MSVC_BIG_WARNING_FLAGS + MSVC_WARNING_FLAGS + MSVC_DEFINES,
+ "ABSL_MSVC_TEST_FLAGS":
+ MSVC_BIG_WARNING_FLAGS + MSVC_WARNING_FLAGS + MSVC_DEFINES + [
+ "/wd4018", # signed/unsigned mismatch
+ "/wd4101", # unreferenced local variable
+ "/wd4503", # decorated name length exceeded, name was truncated
+ "/wd4996", # use of deprecated symbol
+ "/DNOMINMAX", # disable the min() and max() macros from <windows.h>
],
- "ABSL_MSVC_TEST_FLAGS": [
- "/wd4018", # signed/unsigned mismatch
- "/wd4101", # unreferenced local variable
- "/wd4503", # decorated name length exceeded, name was truncated
- "/wd4996", # use of deprecated symbol
- "/DNOMINMAX", # disable the min() and max() macros from <windows.h>
- ],
"ABSL_MSVC_LINKOPTS": [
# Object file doesn't export any previously undefined symbols
"-ignore:4221",
generated by cgit v1.2.3 (git 2.39.1) at 2025-04-16 03:52:20 +0000