Makefile update

FossilOrigin-Name: 465d9c763cb3e3c955c03cd315dc6be6e2550b5a

4 files changed, 154 insertions, 14 deletions

diff --git a/Makefile b/Makefile
index 1c46784..226c8be 100644
--- a/Makefile
+++ b/Makefile
@@ -11,7 +11,7 @@
 # ========================
 #
 # bsdsetsid: Makefile
-# 2020-11-13 13:22
+# 2020-11-21 14:36
 # Joe
 #
 # BSD Makefile
@@ -19,32 +19,44 @@
 default: all
 
 SRCS_DIR	:= src/
-PREFIX		:= /usr/local/
+OBJS_DIR	:= obj/
+PREFIX		?= /usr/local/
 DESTDIR		:=
+MAKEOBJDIR	:= ./
 
-SRCS		:= ${SRCS_DIR}c_bsdsetsid.S
-SRCS		+= ${SRCS_DIR}e_err.S
-SRCS		+= ${SRCS_DIR}u_print.S
-SRCS		+= ${SRCS_DIR}u_strlen.S
+SRCS		 = c_bsdsetsid
+SRCS		+= e_err
+SRCS		+= u_hexdec
+SRCS		+= u_print
+SRCS		+= u_strlen
+SRCS		+= u_strncmp
+SRCS		:= ${SRCS:S/$/.S/g}
+SRCS		:= ${SRCS:S/^/${SRCS_DIR}/g}
 
-OBJS		 = ${SRCS:.S=.o}
+OBJS		:= ${SRCS:=.o}
 
 NAME		:= bsdsetsid
 
 RM			:= rm -f
+RMDIR		:= rmdir -p
+MKDIR		:= mkdir -p
 
-.SUFFIXES: .S .o
+.OBJDIR: ./
+.SUFFIXES: .S.o .o
+.S.S.o:
+	${AS} -o ${.TARGET:S/src/obj/} ${.IMPSRC}
 
-.S.o:
-	${AS} -o ${.TARGET} ${.IMPSRC}
+${OBJS_DIR}:
+	${MKDIR} ${OBJS_DIR}
 
 ${NAME}: ${OBJS}
-	${CC} -o ${.TARGET} ${.ALLSRC}
+	${CC} -o ${.TARGET} ${.ALLSRC:S/src/obj/}
 
-all: ${NAME}
+all: ${OBJS_DIR} ${NAME}
 
 clean:
-	${RM} ${OBJS} ${NAME} vgcore*
+	${RM} ${OBJS:S/src/obj/} ${NAME} vgcore*
+	${RM} -R obj
 
 .PHONY: all clean
 
diff --git a/src/c_bsdsetsid.S b/src/c_bsdsetsid.S
index 2c2d158..9f0e420 100644
--- a/src/c_bsdsetsid.S
+++ b/src/c_bsdsetsid.S
@@ -69,7 +69,7 @@ c_parent:
 
 c_child:
 	xor		%rax, %rax
-	mov		$0x93, %rax	/* SYS_setsid */
+	movb	$0x93, %al	/* SYS_setsid */
 	syscall
 	test	%rax, %rax
 	js		e_setsid
diff --git a/src/u_hexdec.S b/src/u_hexdec.S
new file mode 100644
index 0000000..a362ba6
--- /dev/null
+++ b/src/u_hexdec.S
@@ -0,0 +1,72 @@
+/*
+ * ========================
+ * =====    ===============
+ * ======  ================
+ * ======  ================
+ * ======  ====   ====   ==
+ * ======  ===     ==  =  =
+ * ======  ===  =  ==     =
+ * =  ===  ===  =  ==  ====
+ * =  ===  ===  =  ==  =  =
+ * ==     =====   ====   ==
+ * ========================
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ *
+ * Copyright (c) 2020 Joe
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the organization nor the
+ *    names of its contributors may be used to endorse or promote products
+ *    derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY JOE ''AS IS'' AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL JOE BE LIABLE FOR ANY
+ * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * bsdsetsid: src/u_hexdec.S
+ * 2020-11-21 14:00
+ * Joe
+ *
+ * General error handling happen here.
+ */
+
+.text
+.globl	u_hexdec
+
+u_hexdec:
+    xor     %r10, %r10
+    xor     %r9, %r9
+    xor     %r8, %r8
+    mov     $0xa, %rbx
+    clc
+.u.repeat:
+    xor     %rdx, %rdx
+    idiv    %rbx
+    or      $0x0, %dl
+    mov     $0x8, %rcx
+.u.shift:
+    rcrb    $0x1, %dl
+    rcr     $0x1, %r10
+    rcr     $0x1, %r9
+    rcr     $0x1, %r8
+    dec     %rcx
+    and     %rcx, %rcx
+    jnz     .u.shift
+    and     %rax, %rax
+    jnz     .u.repeat
+	ret
diff --git a/src/u_strncmp.S b/src/u_strncmp.S
new file mode 100644
index 0000000..9c90cd0
--- /dev/null
+++ b/src/u_strncmp.S
@@ -0,0 +1,56 @@
+/*
+ * ========================
+ * =====    ===============
+ * ======  ================
+ * ======  ================
+ * ======  ====   ====   ==
+ * ======  ===     ==  =  =
+ * ======  ===  =  ==     =
+ * =  ===  ===  =  ==  ====
+ * =  ===  ===  =  ==  =  =
+ * ==     =====   ====   ==
+ * ========================
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ *
+ * Copyright (c) 2020 Joe
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the organization nor the
+ *    names of its contributors may be used to endorse or promote products
+ *    derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY JOE ''AS IS'' AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL JOE BE LIABLE FOR ANY
+ * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * bsdsetsid: src/u_strncmp.S
+ * 2020-11-21 14:02
+ * Joe
+ *
+ * General error handling happen here.
+ */
+
+.text
+.globl	u_strncmp
+
+u_strncmp:
+#	xor		%rcx, %rcx
+#	dec		%rdx
+#.u.loop
+#	cmpb	(%rsi)
+	ret