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README.md

@@ -38,7 +38,7 @@ mkdir build-binutils build-gcc sysroot
 ```bash
 cd build-binutils
 ../binutils-*/configure                 \
-  --prefix="$(pwd)/../sysroot"      \
+  --prefix="$(pwd)/../sysroot"          \
   --target="sh3eb-elf"                  \
   --with-multilib-list="m3,m4-nofpu"    \
   --program-prefix="sh-elf-"            \
@@ -66,8 +66,6 @@ make -j$(nproc)
 make install-strip
 ```
 
-%TODO: What does configure-host do? why install-strip?
-
 We now configure and install `gcc` using the same steps but with different flags.
 
 ### Configuring GCC (Part 1)
@@ -111,30 +109,39 @@ make -j$(nproc) all-gcc all-target-libgcc
 make install-strip-gcc install-strip-target-libgcc # TODO: may need to add Ada stuff?
 ```
 
-### Adding libc
-
-We will now install a libc implementation that works on the CG50. For that we will use [OpenLibm](https://git.planet-casio.com/Lephenixnoir/OpenLibm) and [fxlibc](https://git.planet-casio.com/Vhex-Kernel-Core/fxlibc/)
+We now have successfully corss compiled gcc. However we still need to add a libc and compile gnat. 
+For that we will have to install the required headers into the correct coresponding direcotry
 
 ```bash
-COMPILER_DIR="$(sh-elf-gcc --print-file-name=.)" #TODO: maybe more elegant way to search for path?
-LIBDIR="$COMPILER_DIR"
-INCDIR="$COMPILER_DIR/include"
-git clone https://git.planet-casio.com/Lephenixnoir/OpenLibm.git
-cd OpenLibm
-make USEGCC=1 TOOLPREFIX=sh-elf- AR=sh-elf-ar CC=sh-elf-gcc libdir="$(pwd)/../sysroot/lib/gcc/sh3eb-elf/15.2.0/" includedir="$(pwd)/../sysroot/lib/gcc/sh3eb-elf/15.2.0/include" install-static-superh install-headers-superh 
-# make USEGCC=1 TOOLPREFIX=sh-elf- AR=sh-elf-ar CC=sh-elf-gcc \
-#     libdir="$LIBDIR" includedir="$INCDIR" \
-#     install-static-superh install-headers-superh
+cd ..
+export PATH="$PATH:$(pwd)/sysroot/bin"
+PREFIX="$(sh-elf-gcc --print-file-name=.)"
+```
+
+The `PREFIX` directory is where gcc is going to look for all the system headers. 
+
+### Adding libc
+
+We will now install a libc implementation that works on the CG50. For that we will use [OpenLibm](https://git.planet-casio.com/Lephenixnoir/OpenLibm) and [libfxcg](https://github.com/Jonimoose/libfxcg.git)
+
+```bash
+git clone https://github.com/Jonimoose/libfxcg.git
+cd libfxcg/libc
+```
+replace all the `sh3eb-` with `sh-elf` 
+```bash
+make
+cp the lib files to gcc dir
 ```
 
 Now we install the actual libc 
 
 ```bash
-git clone https://git.planet-casio.com/Vhex-Kernel-Core/fxlibc.git
-cd fxlibc
-cmake -B build-gint -DFXLIBC_TARGET=gint -DCMAKE_TOOLCHAIN_FILE=cmake/toolchain-sh.cmake -DCMAKE_INSTALL_PREFIX="$SYSROOT" #instead of Sysroot use lib/gcc/15.2.0
-make -C build-casiowin-cg
-make -C build-casiowin-cg install
+# git clone https://git.planet-casio.com/Vhex-Kernel-Core/fxlibc.git
+# cd fxlibc
+# cmake -B build-gint -DFXLIBC_TARGET=gint -DCMAKE_TOOLCHAIN_FILE=cmake/toolchain-sh.cmake -DCMAKE_INSTALL_PREFIX="$PREFIX" #instead of Sysroot use lib/gcc/15.2.0
+# make -C build-casiowin-cg #casiowin-cg does not work? using gint instead
+# make -C build-casiowin-cg install
 ```
 
 > [!NOTE]
@@ -152,6 +159,20 @@ make install-strip-target-libstdc++-v3
 
 ---
 
+## packaging the binary
+
+We will need to build `mkg3a` to package the binary. 
+
+```bash
+git clone https://gitlab.com/taricorp/mkg3a.git
+mkdir build
+cd build
+cmake ..
+make
+make install/local
+```
+
+
 ## Adding our custom compiler to GPRBuild 
 
 TODO: look into ironclad gprbuild integration
@@ -162,6 +183,7 @@ Sources used:
  - https://www.planet-casio.com/Fr/forums/topic12970-1-tutoriel-installation-manuelle-de-gcc-et-du-fxsdk.html
  - https://gcc.gnu.org/install/configure.html
  - https://git.planet-casio.com/Lephenixnoir/fxsdk
+ - https://prizm.cemetech.net/Mkg3a/
 
 ---
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