cmake: install in the fxSDK sysroot

This makes no difference since this is the default.

.gitignore

@@ -1,3 +1,6 @@
 # Build files
-build/
-libprof.a
+build*/
+
+# GiteaPC configuration files
+giteapc-config-*.make
+giteapc-config.make

CMakeLists.txt

@@ -0,0 +1,21 @@
+# Build system for the libprof library for gint
+
+cmake_minimum_required(VERSION 3.15)
+project(libprof VERSION 2.4.0 LANGUAGES C)
+find_package(Gint 2.4.0 REQUIRED)
+
+configure_file(libprof.h libprof.h)
+
+set(NAME "prof-${FXSDK_PLATFORM}")
+add_library(${NAME} STATIC libprof.c)
+
+target_compile_options(${NAME} PUBLIC -Wall -Wextra -std=c11 -Os)
+target_include_directories(${NAME} PUBLIC "${CMAKE_CURRENT_BINARY_DIR}")
+target_link_libraries(${NAME} Gint::Gint)
+
+install(TARGETS ${NAME}
+  DESTINATION "${FXSDK_LIB}")
+install(FILES "${CMAKE_CURRENT_BINARY_DIR}/libprof.h"
+  DESTINATION "${FXSDK_INCLUDE}")
+install(FILES cmake/FindLibProf.cmake
+  DESTINATION "${FXSDK_CMAKE_MODULE_PATH}")

Makefile

@@ -1,46 +0,0 @@
-#! /usr/bin/make -f
-# libprof Makefile
-
-cflags := -m3 -mb -ffreestanding -nostdlib -fstrict-volatile-bitfields -Wall \
-          -Wextra -Os -I .
-target ?= sh-elf
-lib    := libprof.a
-header := libprof.h
-
-PREFIX ?= $(shell $(target)-gcc -print-search-dirs | grep install \
-                  | sed 's/install: //')
-
-ifeq "$(PREFIX)" ""
-$(error "Cannot determine compiler install path")
-endif
-
-src := $(wildcard *.c)
-obj := $(src:%=build/%.o)
-
-# Rules
-
-all: $(lib)
-
-$(lib): $(obj)
-	$(target)-ar rcs $@ $^
-
-build/%.c.o: %.c | build/
-	$(target)-gcc -c $< -o $@ $(cflags)
-
-# Misc rules
-
-clean:
-	@ rm -rf build
-distclean: clean
-	@ rm -f $(lib)
-
-%/:
-	mkdir -p $@
-
-.PRECIOUS: %/
-
-# Install
-
-install: $(lib)
-	cp $(lib) $(DESTDIR)$(PREFIX)
-	cp $(header) $(DESTDIR)$(PREFIX)/include

README.md

@@ -8,32 +8,46 @@ libprof's measurements are accurate down to the microsecond-level thanks to
 precise hardware timers, so it can also be used to time even small portions of
 code.
 
-## Building
+## Installing and using libprof in a program
 
-libprof is built and installed only once for both fx-9860G and fx-CG 50. The
-dependencies are:
+**Installing with GiteaPC**
 
-* A GCC cross-compiler for a SuperH architecture
-* The [gint kernel](/Lephenixnoir/gint)
+libprof can be built and installed with [GiteaPC](https://gitea.planet-casio.com/Lephenixnoir/GiteaPC), an automation tool for the fxSDK.
 
-The Makefile will build and install the library without further instructions.
-
-```sh
-% make
-% make install
+```bash
+% giteapc install Lephenixnoir/libprof
 ```
 
-By default `sh-elf` is used to build; you can override this by setting the
-`target` variable.
+**Installing manually**
 
-```sh
-% make target=sh4eb-elf
-% make install target=sh4eb-elf
+libprof should be built with the [fxSDK](/Lephenixnoir/fxsdk), which provides
+compiler settings and library interfaces to build on the calculator.
+
+Simply run `fxsdk build-fx` or `fxsdk build-cg`. The fxSDK will invoke CMake
+with a suitable toolchain file while exposing CMake modules for the calculator.
+
+```bash
+% fxsdk build-fx install
+% fxsdk build-cg install
 ```
 
-If you have the older setup with two toolchains (`sh3eb-elf` and `sh4eb-elf`),
-instead of the new one with two targets on the same toolchain (`sh-elf`), you
-will need to make and install twice.
+**Using in a CMake-based add-in**
+
+Find the `LibProf` package, which has a `LibProf` target. Versions are numbered like gint, so aim for your version of gint.
+
+```cmake
+find_package(LibProf 2.1 REQUIRED)
+target_link_libraries(<target_name> LibProf::LibProf)
+```
+
+**Using in a Makefile-based add-in**
+
+Link with `-lprof-fx` on fx-9860G and `-lprof-cg` on fx-CG 50. In `project.cfg`:
+
+```makefile
+LIBS_FX := -lprof-fx
+LIBS_CG := -lprof-cg
+```
 
 ## Basic use
 

cmake/FindLibProf.cmake

@@ -0,0 +1,19 @@
+include(FindSimpleLibrary)
+include(FindPackageHandleStandardArgs)
+
+find_package(Gint 2.2.1 REQUIRED)
+
+find_simple_library("libprof-${FXSDK_PLATFORM}.a" libprof.h
+  "PROF_VERSION" PATH_VAR PROF_PATH VERSION_VAR PROF_VERSION)
+
+find_package_handle_standard_args(LibProf
+  REQUIRED_VARS PROF_PATH PROF_VERSION
+  VERSION_VAR PROF_VERSION)
+
+if(LibProf_FOUND)
+  add_library(LibProf::LibProf UNKNOWN IMPORTED)
+  set_target_properties(LibProf::LibProf PROPERTIES
+    IMPORTED_LOCATION "${PROF_PATH}"
+    INTERFACE_LINK_OPTIONS -lprof-${FXSDK_PLATFORM}
+    IMPORTED_LINK_INTERFACE_LIBRARIES Gint::Gint)
+endif()

giteapc.make

@@ -0,0 +1,25 @@
+# giteapc: version=1 depends=Lephenixnoir/gint
+
+-include giteapc-config.make
+
+configure:
+	@ fxsdk build-fx -c
+	@ fxsdk build-cg -c
+
+build:
+	@ fxsdk build-fx
+	@ fxsdk build-cg
+
+install:
+	@ fxsdk build-fx install
+	@ fxsdk build-cg install
+
+uninstall:
+	@ if [ -e build-fx/install_manifest.txt ]; then \
+	     xargs rm -f < build-fx/install_manifest.txt; \
+          fi
+	@ if [ -e build-cg/install_manifest.txt ]; then \
+	     xargs rm -f < build-cg/install_manifest.txt; \
+          fi
+
+.PHONY: configure build install uninstall

libprof.c

@@ -10,6 +10,11 @@ uint32_t volatile *prof_tcnt = NULL;
 /* Timer ID */
 static int prof_timer = -1;
 
+static int callback(void)
+{
+	return TIMER_CONTINUE;
+}
+
 /* prof_init(): Initialize the profiler's timer */
 int prof_init(void)
 {
@@ -17,7 +22,8 @@ int prof_init(void)
 	int timer = -1;
 	for(int t = 2; t >= 0 && timer == -1; t--)
 	{
-		timer = timer_setup(t, 0xffffffff, NULL);
+		timer = timer_configure(t | TIMER_Pphi_4, 0xffffffff,
+			GINT_CALL(callback));
 	}
 	if(timer == -1)
 	{

libprof.h

@@ -5,9 +5,16 @@
 #ifndef LIBPROF_LIBPROF
 #define LIBPROF_LIBPROF
 
+#ifdef __cplusplus
+extern "C" {
+#endif
+
 #include <stdint.h>
 #include <gint/defs/attributes.h>
 
+/* This is substituted by CMake at compile-time */
+#define PROF_VERSION "@libprof_VERSION@"
+
 //---
 //	Initialization
 //---
@@ -51,7 +58,7 @@ extern uint32_t volatile *prof_tcnt;
    function was already executing then the deepest instance in the stack is
    used instead of creating a new counter. */
 #define prof_enter(prof) {				\
-	if(!prof.rec++) prof.elapsed += *prof_tcnt;	\
+	if(!(prof).rec++) (prof).elapsed += *prof_tcnt;	\
 }
 
 /* prof_leave(): Stop counting time for a function
@@ -60,7 +67,15 @@ extern uint32_t volatile *prof_tcnt;
    are not as exactly as many prof_leave()'s as prof_enter()'s then the
    resulting time measure will not be relevant at all. */
 #define prof_leave(prof) {				\
-	if(!--prof.rec) prof.elapsed -= *prof_tcnt;	\
+	if(!--(prof).rec) (prof).elapsed -= *prof_tcnt;	\
+}
+
+/* Variant of prof_enter()/prof_leave() for non-recursive contexts */
+#define prof_enter_norec(prof) {			\
+	(prof).elapsed += *prof_tcnt;			\
+}
+#define prof_leave_norec(prof) {			\
+	(prof).elapsed -= *prof_tcnt;			\
 }
 
 /* prof_exec(): Measure a single block of code
@@ -72,11 +87,11 @@ extern uint32_t volatile *prof_tcnt;
            exec_code();
        }); */
 #define prof_exec(code) ({		\
-	prof_t prof = prof_make();	\
-	prof_enter(prof);		\
+	prof_t _prof = prof_make();	\
+	prof_enter(_prof);		\
 	code;				\
-	prof_leave(prof);		\
-	prof_time(prof);		\
+	prof_leave(_prof);		\
+	prof_time(_prof);		\
 })
 
 //---
@@ -87,4 +102,8 @@ extern uint32_t volatile *prof_tcnt;
    Should only be called when the context is not currently executing. */
 uint32_t prof_time(prof_t prof);
 
+#ifdef __cplusplus
+}
+#endif
+
 #endif /* LIBPROF_LIBPROF */