From 5a017b662662725fea487867e60a7e68df6cbdfe Mon Sep 17 00:00:00 2001
From: Alex <enderice2@users.noreply.github.com>
Date: Wed, 3 May 2023 06:39:20 +0300
Subject: [PATCH] Stub shell

---
 apps/system/Makefile    |  2 ++
 apps/system/sh/Makefile | 78 +++++++++++++++++++++++++++++++++++++++++
 apps/system/sh/sh.c     |  9 +++++
 3 files changed, 89 insertions(+)
 create mode 100644 apps/system/sh/Makefile
 create mode 100644 apps/system/sh/sh.c

diff --git a/apps/system/Makefile b/apps/system/Makefile
index d3cd073..ce3ca0d 100644
--- a/apps/system/Makefile
+++ b/apps/system/Makefile
@@ -1,5 +1,7 @@
 build:
 	make -C init build
+	make -C sh build
 
 clean:
 	make -C init clean
+	make -C sh clean
diff --git a/apps/system/sh/Makefile b/apps/system/sh/Makefile
new file mode 100644
index 0000000..e5c720d
--- /dev/null
+++ b/apps/system/sh/Makefile
@@ -0,0 +1,78 @@
+# Config file
+include ../../../../Makefile.conf
+
+FILENAME = sh.elf
+
+SYSROOT = --sysroot=../../../out/system/
+
+CC = ../../../../$(TC_COMPILER_PATH)/$(TC_COMPILER_ARCH)gcc
+CPP = ../../../../$(TC_COMPILER_PATH)/$(TC_COMPILER_ARCH)g++
+LD = ../../../../$(TC_COMPILER_PATH)/$(TC_COMPILER_ARCH)ld
+AS = ../../../../$(TC_COMPILER_PATH)/$(TC_COMPILER_ARCH)as
+OBJDUMP = ../../../../$(TC_COMPILER_PATH)/$(TC_COMPILER_ARCH)objdump
+
+GIT_COMMIT = $(shell git rev-parse HEAD)
+GIT_COMMIT_SHORT = $(shell git rev-parse --short HEAD)
+
+ifeq ($(OSARCH), amd64)
+S_SOURCES = $(shell find ./ -type f -name '*.S' -not -path "./arch/i386/*" -not -path "./arch/aarch64/*")
+C_SOURCES = $(shell find ./ -type f -name '*.c' -not -path "./arch/i386/*" -not -path "./arch/aarch64/*")
+CPP_SOURCES = $(shell find ./ -type f -name '*.cpp' -not -path "./arch/i386/*" -not -path "./arch/aarch64/*")
+else ifeq ($(OSARCH), i386)
+S_SOURCES = $(shell find ./ -type f -name '*.S' -not -path "./arch/amd64/*" -not -path "./arch/aarch64/*")
+C_SOURCES = $(shell find ./ -type f -name '*.c' -not -path "./arch/amd64/*" -not -path "./arch/aarch64/*")
+CPP_SOURCES = $(shell find ./ -type f -name '*.cpp' -not -path "./arch/amd64/*" -not -path "./arch/aarch64/*")
+else ifeq ($(OSARCH), aarch64)
+S_SOURCES = $(shell find ./ -type f -name '*.S' -not -path "./arch/amd64/*" -not -path "./arch/i386/*")
+C_SOURCES = $(shell find ./ -type f -name '*.c' -not -path "./arch/amd64/*" -not -path "./arch/i386/*")
+CPP_SOURCES = $(shell find ./ -type f -name '*.cpp' -not -path "./arch/amd64/*" -not -path "./arch/i386/*")
+endif
+HEADERS = $(sort $(dir $(wildcard ../../../out/system/include/*)))
+OBJ = $(C_SOURCES:.c=.o) $(CPP_SOURCES:.cpp=.o) $(ASM_SOURCES:.asm=.o) $(S_SOURCES:.S=.o) $(PSF_SOURCES:.psf=.o) $(BMP_SOURCES:.bmp=.o)
+INCLUDE_DIR = ../../../out/system/include
+
+LDFLAGS := -Wl,-Map file.map
+
+WARNCFLAG = -Wall -Wextra -Wno-main
+
+CFLAGS :=										\
+	-I$(INCLUDE_DIR)							\
+	-DGIT_COMMIT='"$(GIT_COMMIT)"'				\
+	-DGIT_COMMIT_SHORT='"$(GIT_COMMIT_SHORT)"'
+
+ifeq ($(OSARCH), amd64)
+CFLAGS += -march=x86-64 -fstack-protector-all -fstack-clash-protection
+else ifeq ($(OSARCH), i386)
+CFLAGS += -march=i386
+else ifeq ($(OSARCH), aarch64)
+CFLAGS += -pipe
+endif
+
+build: $(FILENAME)
+	$(OBJDUMP) -d $(FILENAME) > file_dump.map
+	mv $(FILENAME) ../../../out/system/bin/$(FILENAME)
+
+$(FILENAME): $(OBJ)
+	$(info Linking $@)
+	$(CC) $(LDFLAGS) $(SYSROOT) $(OBJ) -lssp -linit -o $@
+
+%.o: %.c $(HEADERS)
+	$(info Compiling $<)
+	$(CC) $(CFLAGS) $(WARNCFLAG) -std=c17 -c $< -o $@
+
+%.o: %.cpp $(HEADERS)
+	$(info Compiling $<)
+	$(CPP) $(CFLAGS) $(WARNCFLAG) -std=c++20 -c $< -o $@
+
+%.o: %.S
+	$(info Compiling $<)
+ifeq ($(OSARCH), amd64)
+	$(AS) -o $@ $<
+else ifeq ($(OSARCH), i386)
+	$(AS) -o $@ $<
+else ifeq ($(OSARCH), aarch64)
+	$(AS) -o $@ $<
+endif
+
+clean:
+	rm -f *.o file.map file_dump.map $(OBJ)
diff --git a/apps/system/sh/sh.c b/apps/system/sh/sh.c
new file mode 100644
index 0000000..8704da6
--- /dev/null
+++ b/apps/system/sh/sh.c
@@ -0,0 +1,9 @@
+#include <stdlib.h>
+#include <stdio.h>
+#include <aux.h>
+
+int main(int argc, char *argv[], char *envp[])
+{
+    printf("Hello, world!\n");
+    return 0;
+}