scc

commit 0eeecf6e31c0459291631f2cf3db2f7f04a60d00
parent b34b9955320a4daa458df2baea22db6341cd7346
Author: Roberto E. Vargas Caballero <k0ga@shike2.com>
Date:   Thu, 27 Oct 2022 19:59:04 +0200

build: Add support for gcov toolchain

The gcov toolchain is designed to be used to generate coverage
information while executing the tests. At this moment it is not
functional because the c library is built with the same toolchain
than the compiler and it implies that the libc has a dependency
with libgcov.a.

Diffstat:
M
.gitignore
 | 
2
++
A
scripts/build/tool/gcov.mk
 | 
3
+++
M
scripts/build/tool/gnu.mk
 | 
3
++-
M
scripts/rules.mk
 | 
1
+

4 files changed, 8 insertions(+), 1 deletion(-)
diff --git a/.gitignore b/.gitignore
@@ -4,3 +4,5 @@ bin/
 lib/
 libexec/
 dirs
+*.gcno
+*.gcda
diff --git a/scripts/build/tool/gcov.mk b/scripts/build/tool/gcov.mk
@@ -0,0 +1,3 @@
+PROFILE_CFLAGS  = -fprofile-arcs -ftest-coverage -fprofile-abs-path
+PROFILE_LDLIBS  = -lgcov
+include $(BUILDDIR)/tool/gnu.mk
diff --git a/scripts/build/tool/gnu.mk b/scripts/build/tool/gnu.mk
@@ -7,5 +7,6 @@ PRECOMP = cpp
 
 ARCHIVE_FLAGS = -U
 NOPIE_CFLAGS = -fno-pie
-TOOL_CFLAGS = -std=c99 -fno-stack-protector -static
+TOOL_CFLAGS = -std=c99 -fno-stack-protector -static $(PROFILE_CFLAGS)
+TOOL_LDLIBS = $(PROFILE_LDLIBS)
 TOOL_LIBC_CFLAGS = -ffreestanding
diff --git a/scripts/rules.mk b/scripts/rules.mk
@@ -201,6 +201,7 @@ clean-dirs:
 
 clean-files:
 	rm -f *.i *.d *.o *.a *.elf $(TARGET)
+	rm -f *.gcno *.gcda
 
 dep: inc-dep
 	$(FORALL)