Enable "debug" optimizations in make develop

Enhances some warnings as well as the sanitizers (Clang especially complained about it)
The `-f*` flags are to get better stack traces out of the sanitizers, as recommended
by Clang's docs: https://clang.llvm.org/docs/AddressSanitizer.html#usage

GCC's docs claim that these optimizations should not hinder the debugging
experience, and Clang's don't mention optimization flags at all.
This commit is contained in:
ISSOtm
2022-02-05 14:12:18 +01:00
committed by Eldred Habert
parent bbae9966e9
commit 72b677a8d7
3 changed files with 10 additions and 8 deletions

View File

@@ -42,16 +42,18 @@ else()
-fsanitize=alignment -fsanitize=null -fsanitize=address) -fsanitize=alignment -fsanitize=null -fsanitize=address)
add_compile_options(${SAN_FLAGS}) add_compile_options(${SAN_FLAGS})
link_libraries(${SAN_FLAGS}) link_libraries(${SAN_FLAGS})
# A non-zero optimization level is desired in debug mode, but allow overriding it nonetheless
# TODO: this overrides anything previously set... that's a bit sloppy!
set(CMAKE_C_FLAGS_DEBUG "-g -Og -fno-omit-frame-pointer -fno-optimize-sibling-calls" CACHE STRING "" FORCE)
endif() endif()
if(MORE_WARNINGS) if(MORE_WARNINGS)
add_compile_options(-Werror -Wextra add_compile_options(-Werror -Wextra
-Walloc-zero -Wcast-align -Wcast-qual -Wduplicated-branches -Wduplicated-cond -Walloc-zero -Wcast-align -Wcast-qual -Wduplicated-branches -Wduplicated-cond
-Wfloat-equal -Winline -Wlogical-op -Wnested-externs -Wold-style-definition -Wfloat-equal -Winline -Wlogical-op -Wnested-externs -Wnull-dereference
-Wshift-overflow=2 -Wold-style-definition -Wshift-overflow=2 -Wstrict-overflow=5
-Wstrict-overflow=5 -Wstrict-prototypes -Wundef -Wuninitialized -Wunused -Wstrict-prototypes -Wstringop-overflow=4 -Wundef -Wuninitialized -Wunused
-Wshadow # TODO: -Wshadow=compatible-local ? -Wshadow # TODO: -Wshadow=compatible-local ?
-Wnull-dereference -Wstringop-overflow=4 # TODO: would work better with optimizations
-Wno-sign-compare # TODO: fix those warnings -Wno-sign-compare # TODO: fix those warnings
-Wformat=2 -Wformat-overflow=2 -Wformat-truncation=1 -Wformat=2 -Wformat-overflow=2 -Wformat-truncation=1
-Wno-format-nonliteral # We have a couple of "dynamic" prints -Wno-format-nonliteral # We have a couple of "dynamic" prints

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@@ -230,7 +230,7 @@ develop:
-fsanitize=signed-integer-overflow -fsanitize=bounds \ -fsanitize=signed-integer-overflow -fsanitize=bounds \
-fsanitize=object-size -fsanitize=bool -fsanitize=enum \ -fsanitize=object-size -fsanitize=bool -fsanitize=enum \
-fsanitize=alignment -fsanitize=null -fsanitize=address" \ -fsanitize=alignment -fsanitize=null -fsanitize=address" \
CFLAGS="-ggdb3 -O0" CFLAGS="-ggdb3 -Og -fno-omit-frame-pointer -fno-optimize-sibling-calls"
# Targets for the project maintainer to easily create Windows exes. # Targets for the project maintainer to easily create Windows exes.
# This is not for Windows users! # This is not for Windows users!

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@@ -95,6 +95,9 @@ void output_png_file(const struct Options *opts,
if (!f) if (!f)
err("Opening output png file '%s' failed", outfile); err("Opening output png file '%s' failed", outfile);
if (opts->debug)
free(outfile);
img.png = png_create_write_struct(PNG_LIBPNG_VER_STRING, img.png = png_create_write_struct(PNG_LIBPNG_VER_STRING,
NULL, NULL, NULL); NULL, NULL, NULL);
if (!img.png) if (!img.png)
@@ -135,9 +138,6 @@ void output_png_file(const struct Options *opts,
png_destroy_write_struct(&img.png, &img.info); png_destroy_write_struct(&img.png, &img.info);
fclose(f); fclose(f);
if (opts->debug)
free(outfile);
} }
void destroy_raw_image(struct RawIndexedImage **raw_image_ptr_ptr) void destroy_raw_image(struct RawIndexedImage **raw_image_ptr_ptr)