sylware / muinit (public) (License: AFFERO GPLv3) (since 2019-09-09) (hash sha1)
minimal init linux process
Clone URLs: https://rocketgit.com/user/sylware/muinit ssh://rocketgit@ssh.rocketgit.com/user/sylware/muinit git://git.rocketgit.com/user/sylware/muinit
master
List of commits:
Subject Hash Author Date (UTC)
tidy and cosmetics 3475d1fb9c9aaf7cd059b00c1bf791616a6c4118 Sylvain BERTRAND 2021-05-26 23:34:50
/sbin to /bin 5031de4134243797ac2ab9f85262040098ca1bfe Sylvain BERTRAND 2015-02-14 23:29:30
use a real life sysstart 28421b744d0937334e1e0254dff39f45e7d4480d Sylvain BERTRAND 2015-01-20 17:44:51
remove some bash-ism 688ff57cfe8077c235a5ec485ba6b72b0d066dc4 Sylvain BERTRAND 2015-01-07 00:39:53
add some examples 4c3c939272dde88eee1242955d1a7832612d4bbb Sylvain BERTRAND 2014-12-08 17:29:16
Initial commit c72c14065b547486a05ade1b5975e3a1deaf9d18 Sylvain BERTRAND 2014-12-08 15:27:00
Commit 3475d1fb9c9aaf7cd059b00c1bf791616a6c4118 - tidy and cosmetics
Author: Sylvain BERTRAND
Author date (UTC): 2021-05-26 23:34
Committer name: Sylvain BERTRAND
Committer date (UTC): 2021-05-26 23:34
Parent(s): 5031de4134243797ac2ab9f85262040098ca1bfe
Signing key:
Tree: d70988bf9e3b01ce95ce7e9a8835fa11a4458fc5
File Lines added Lines deleted
README 3 9
TODO 0 6
init.c 121 112
make 108 135
out.h 19 19
script/sysstart 0 96
script/sysstop 0 34
ulinux/README 2 0
ulinux/arch 0 1
ulinux/compiler_misc.h 3 3
ulinux_namespace.h 1 1
File README changed (mode: 100644) (index 0f3164a..6658040)
1 1 This a minimal init process for linux. By default, it maintains 2 clones/forks This a minimal init process for linux. By default, it maintains 2 clones/forks
2 2 of /sbin/agetty, but can just "wait" on orphan processes (--no-tty option). of /sbin/agetty, but can just "wait" on orphan processes (--no-tty option).
3 Before that, it will execve|run /sbin/sysstart to start the operating system
3 _Before_ that, it will execve|run /sbin/sysstart to start the operating system
4 4 and wait for its completion. and wait for its completion.
5 5
6 See some examples of shell script to start/stop a linux box in script
7 directory. Don't forget to have linux binfmt_script support:module is loaded
8 by early userspace, or it's built-in.
6 No libc dependency (Oh... Yeaah!). Only a super thin wrapper layer, ulinux (more
7 recent and "cleaner" ulinux-es are available in other projects).
9 8
10 No libc dependency (Oh... Yeaah!). Only a super thin wrapper layer, ulinux.
11 9
12 10 See ./make --help (you should have all required options for cross compiling See ./make --help (you should have all required options for cross compiling
13 11 friendlyness) friendlyness)
14 12
15 13 Please use a build directory different than the source directory. Please use a build directory different than the source directory.
16
17 coding style is c90 compact:
18 - indent is 2 spaces
19 - 80 columns
File TODO deleted (index 4d60db5..0000000)
1 Only gcc toolchain up to version 4.7.x is supported. Add tinycc support for
2 instance. Than would require specific code and scripts, which would be welcome
3 of course.
4
5 Ulinux supports only 64 bits x86_64 for the moment. Bits to make it support
6 other archs are welcome.
File init.c changed (mode: 100644) (index 8651c40..1c397a0)
1 /*******************************************************************************
2 this code is protected by the GNU affero GPLv3
3 author:Sylvain BERTRAND <sylvain.bertrand AT gmail dot com>
4 *******************************************************************************/
1 /*
2 * this code is protected by the GNU affero GPLv3
3 * author:Sylvain BERTRAND <sylvain.bertrand AT legeek DOT net>
4 */
5 5 #include <ulinux/compiler_misc.h> #include <ulinux/compiler_misc.h>
6 6 #include <ulinux/compiler_types.h> #include <ulinux/compiler_types.h>
7 7 #include <ulinux/sysc.h> #include <ulinux/sysc.h>
 
... ... author:Sylvain BERTRAND <sylvain.bertrand AT gmail dot com>
18 18
19 19 static void sigs_setup(void) static void sigs_setup(void)
20 20 { {
21 ul mask=(~0);
22 l r;
23
24 OUT(PRE "setting up signals...\n");
25 r=rt_sigprocmask(SIG_BLOCK,&mask,sizeof(mask));
26 if(ISERR(r)){
27 OUT("ERROR:unable to block all signals (except KILL and STOP)\n");
28 exit_group(-1);
29 }
30 OUT("done\n");
21 ul mask;
22 l r;
23
24 mask = ~0;
25
26 OUT(PRE "setting up signals...\n");
27 r = rt_sigprocmask(SIG_BLOCK, &mask, sizeof(mask));
28 if (ISERR(r)) {
29 OUT("ERROR:unable to block all signals (except KILL and STOP)\n");
30 exit_group(-1);
31 }
32 OUT("done\n");
31 33 } }
32 34
33 35 static i sysstart_clone(void) static i sysstart_clone(void)
34 36 { {
35 l r;
36 ul mask;
37
38 OUT(PRE "clone and execve /bin/sysstart...\n");
39 r=clone(SIGCHLD);
40 if(ISERR(r)){
41 OUT("ERROR(%ld):unable to clone sysinit for /bin/sysstart\n",r);
42 exit_group(-1);
43 }
44
45 if(r) return (i)r;
46
47 mask=(~0);
48 r=rt_sigprocmask(SIG_UNBLOCK,&mask,sizeof(mask));
49 if(ISERR(r)){
50 OUT("ERROR(%ld):unable to unblock all signals for /bin/sysstart\n",r);
51 exit_group(-1);
52 }
53
54 r=execve("/bin/sysstart",0);
55 if(ISERR(r)) {OUT("ERROR(%ld):unable to execve /bin/sysstart\n",r);}
56 exit_group(-1);
57 #ifdef __GNUC__
58 return 0;/*unreachable not detected at the end of function*/
59 #endif
37 l r;
38 ul mask;
39
40 OUT(PRE "clone and execve /bin/sysstart...\n");
41 r = clone(SIGCHLD);
42 if (ISERR(r)) {
43 OUT("ERROR(%ld):unable to clone sysinit for /bin/sysstart\n", r);
44 exit_group(-1);
45 }
46
47 if (r)
48 return (i)r;
49
50 mask = ~0;
51 r = rt_sigprocmask(SIG_UNBLOCK, &mask, sizeof(mask));
52 if (ISERR(r)) {
53 OUT("ERROR(%ld):unable to unblock all signals for /bin/sysstart\n", r);
54 exit_group(-1);
55 }
56
57 r = execve("/bin/sysstart", 0);
58 if(ISERR(r)) {
59 OUT("ERROR(%ld):unable to execve /bin/sysstart\n", r);
60 }
61 exit_group(-1);
60 62 } }
61 63
62 64 #ifndef NO_TTY #ifndef NO_TTY
63 65 static i getty_spawn(void *tty) static i getty_spawn(void *tty)
64 66 { {
65 l r;
66 ul mask;
67 void *argv[]={"/bin/agetty",tty,0};/*0 for envp is not "portable"*/
68
69 OUT(PRE "getty %s...\n",tty);
70
71 r=clone(SIGCHLD);
72 if(ISERR(r)){
73 OUT("ERROR(%ld):unable to clone for getty(%s)\n",r,tty);
74 exit_group(-1);
75 }
76
77 if(r) return r;/*return the child process id*/
78
79 mask=(~0);
80 r=rt_sigprocmask(SIG_UNBLOCK,&mask,sizeof(mask));
81 if(ISERR(r)){
82 OUT("ERROR(%ld):unable to unblock all signals for getty(%s)\n",r,tty);
83 exit_group(-1);
84 }
85
86 r=setsid();
87 if(ISERR(r)){
88 OUT("ERROR(%ld):unable to setsid the getty(%s) clone\n",r,tty);
89 exit_group(-1);
90 }
91
92 r=execve("/bin/agetty",argv);
93 if(ISERR(r)) {OUT("ERROR(%ld):unable to run /bin/agetty(%s)\n",r,tty);}
94 exit_group(-1);
95 #ifdef __GNUC__
96 return 0;/*unreachable not detected at the end of function*/
97 #endif
67 l r;
68 ul mask;
69 void *argv[3];
70
71 argv[0] = "bin/agetty";
72 argv[1] = tty;
73 argv[2] = 0;
74
75 OUT(PRE "getty %s...\n", tty);
76
77 r = clone(SIGCHLD);
78 if (ISERR(r)) {
79 OUT("ERROR(%ld):unable to clone for getty(%s)\n", r, tty);
80 exit_group(-1);
81 }
82
83 if (r)
84 return r;/* return the child process id */
85
86 mask = ~0;
87 r = rt_sigprocmask(SIG_UNBLOCK, &mask, sizeof(mask));
88 if (ISERR(r)) {
89 OUT("ERROR(%ld):unable to unblock all signals for getty(%s)\n", r, tty);
90 exit_group(-1);
91 }
92
93 r = setsid();
94 if (ISERR(r)) {
95 OUT("ERROR(%ld):unable to setsid the getty(%s) clone\n", r, tty);
96 exit_group(-1);
97 }
98
99 r = execve("/bin/agetty", argv);
100 if (ISERR(r)) {
101 OUT("ERROR(%ld):unable to run /bin/agetty(%s)\n", r, tty);
102 }
103 exit_group(-1);
98 104 } }
99 105 #endif #endif
100 106
101 107 static void sysstart(void) static void sysstart(void)
102 108 { {
103 i pid=sysstart_clone();
104 l r=waitid(P_PID,pid,0,WEXITED);
105 if(ISERR(r)){
106 OUT("ERROR(%ld):unable to wait for /bin/sysstart to exit\n",r);
107 exit_group(-1);
108 }
109 i pid;
110 l r;
111
112 pid = sysstart_clone();
113 r = waitid(P_PID, pid, 0, WEXITED);
114 if (ISERR(r)) {
115 OUT("ERROR(%ld):unable to wait for /bin/sysstart to exit\n", r);
116 exit_group(-1);
117 }
109 118 } }
110 119
111 120 #ifdef NO_TTY #ifdef NO_TTY
112 /*minimal, we don't even have ttys to restart*/
121 /* minimal, we don't even have ttys to restart */
113 122 static void main_loop(void) static void main_loop(void)
114 123 { {
115 loop{
116 l r=waitid(P_ALL,0,0,WEXITED);
117 if(ISERR(r)){
118 OUT("ERROR(%ld):unable to wait on orphan process terminations\n",r);
119 }
120 }
121 unreachable();
124 loop {
125 l r;
126
127 r = waitid(P_ALL, 0, 0, WEXITED);
128 if (ISERR(r)) {
129 OUT("ERROR(%ld):unable to wait on orphan process terminations\n", r);
130 }
131 }
122 132 } }
123 133 #else #else
124 /*we allow ourself 2 ttys to restart*/
134 /* we allow ourself 2 ttys to restart */
125 135 static void main_loop(void) static void main_loop(void)
126 136 { {
127 i tty1=getty_spawn("tty1");
128 i tty2=getty_spawn("tty2");
129
130 loop{
131 struct siginfo siginfo;
132 l r=waitid(P_ALL,0,&siginfo,WEXITED);
133 if(ISERR(r)){
134 OUT("ERROR(%ld):unable to wait on /bin/agetty clone and orphan process terminations\n",r);
135 exit_group(-1);
136 }
137 if(siginfo.fields.sigchld.pid==tty1) tty1=getty_spawn("tty1");
138 else if(siginfo.fields.sigchld.pid==tty2) tty2=getty_spawn("tty2");
139 /*ignore the other children*/
140 }
141 unreachable();
137 i tty1;
138 i tty2;
139
140 tty1 = getty_spawn("tty1");
141 tty2 = getty_spawn("tty2");
142
143 loop {
144 struct siginfo siginfo;
145 l r;
146
147 r = waitid(P_ALL, 0, &siginfo, WEXITED);
148 if(ISERR(r)) {
149 OUT("ERROR(%ld):unable to wait on /bin/agetty clone and orphan process terminations\n", r);
150 exit_group(-1);
151 }
152 if (siginfo.fields.sigchld.pid == tty1)
153 tty1 = getty_spawn("tty1");
154 else if (siginfo.fields.sigchld.pid == tty2)
155 tty2 = getty_spawn("tty2");
156 }
142 157 } }
143 158 #endif #endif
144
145 159 void _start(void) void _start(void)
146 160 { {
147 #ifndef QUIET
148 static u8 dprintf_buf[DPRINTF_BUF_SZ];
149 g_dprintf_buf=dprintf_buf;
150 #endif
151
152 sigs_setup();
153 sysstart();
154 main_loop();
155 unreachable();
161 sigs_setup();
162 sysstart();
163 main_loop();
156 164 } }
165 /* vim: set ts=4 sw=0 noexpandtab: */
File make changed (mode: 100755) (index ff8d1d6..293e6df)
1 1 #!/bin/sh #!/bin/sh
2 2
3 #this script is brutal and verbose, has no tricks and is quite linear, then
4 #quite easy to deal with
5 #for the moment, it's hardcoded for a gcc toolchain... BAD! Since now
6 #gcc is a c++ piece of shit
3 # this script is brutal and verbose, has no tricks and is quite linear, then
4 # quite easy to deal with
5 # for the moment, it's hardcoded for a gcc toolchain... BAD! Since now
6 # gcc is c++ diareha
7 7
8 # stolen from ffmpeg configure like a pig
8 # stolen from ffmpeg configure
9 9 set -e set -e
10 10
11 # Prevent locale nonsense from breaking basic text processing.
11 # prevent locale nonsense from breaking basic text processing
12 12 LC_ALL=C LC_ALL=C
13 13 export LC_ALL export LC_ALL
14 14
15 15 init_file_name=init init_file_name=init
16 16
17 17 #------------------------------------------------------------------------------- #-------------------------------------------------------------------------------
18 #default source files in the binary
19 init_ulinux_src_files='
20 ulinux/utils/mem.c
21 ulinux/utils/ascii/string/vsprintf.c
22 '
18 # default source files in the binary
19 init_ulinux_src_files="\
20 ulinux/utils/mem.c \
21 ulinux/utils/ascii/string/vsprintf.c"
23 22 init_src_files=init.c init_src_files=init.c
24 23 #------------------------------------------------------------------------------- #-------------------------------------------------------------------------------
25
26 clean_do()
27 {
28 all_init_src_files="$init_src_files $init_ulinux_src_files"
29
30 rm -f $init_file_name
31 for init_src_file in $all_init_src_files
32 do
33 init_pp_file=${init_src_file%.c}
34 init_pp_file=${init_pp_file}.pp.c
35 rm -f ${init_pp_file}
36 init_o_file=${init_src_file%.c}
37 init_o_file=${init_o_file}.o
38 rm -f ${init_o_file}
39 #clean directories, but keep root of build tree
40 tgt_dir=$(dirname $init_src_file)
41 if test -d $tgt_dir -a "$tgt_dir" != "."; then
42 rmdir --ignore-fail-on-non-empty -p $tgt_dir
43 fi
44 done
45 exit 0
46 }
47
48 24 sep_start() sep_start()
49 25 { {
50 printf '###############################################################################\n'
26 printf "\
27 ################################################################################\
28 \n"
51 29 } }
52 30
53 31 sep_end() sep_end()
54 32 { {
55 printf '###############################################################################\n\n'
33 printf "\
34 ################################################################################\
35 \n\n"
56 36 } }
57 37
58 38 subsep_start() subsep_start()
59 39 { {
60 printf '*******************************************************************************\n'
40 printf "\
41 ********************************************************************************\
42 \n"
61 43 } }
62 44
63 45 subsep_end() subsep_end()
64 46 { {
65 printf '*******************************************************************************\n'
47 printf "\
48 ********************************************************************************\
49 \n"
66 50 } }
67 51
68 52 ################################################################################ ################################################################################
69 53
70 is_in(){
71 value=$1
72 shift
73 for var in $*; do
74 [ $var = $value ] && return 0
75 done
76 return 1
77 }
78
79 die_unknown(){
80 echo "Unknown option \"$1\"."
81 echo "See $0 --help for available options."
82 exit 1
54 is_in()
55 {
56 value=$1
57 shift
58 for var in $*; do
59 [ $var = $value ] && return 0
60 done
61 return 1
83 62 } }
84 63
85 set_default(){
86 for opt; do
87 eval : \${$opt:=\$${opt}_default}
88 done
64 set_default()
65 {
66 for opt; do
67 eval : \${$opt:=\$${opt}_default} #1 level of indirection
68 done
89 69 } }
90 70
91 71 CMDLINE_SET=' CMDLINE_SET='
92 init_cpp
93 init_cc
94 init_ld
95 init_ulinux_arch
72 init_cpp
73 init_cc
74 init_ld
75 init_ulinux_arch
96 76 ' '
97 77
98 78 ################################################################################ ################################################################################
99 79
100 #command line set defaults
80 # command line set defaults
101 81 #------------------------------------------------------------------------------- #-------------------------------------------------------------------------------
102 #This defaults are for gcc, tested with version 4.7.3. You will need to
103 #override those for you compiler (tinycc/open64/pcc...). Additionnally, source
104 #support for different toolchains is not done.
105 #The right way to do it is to have a toolchain abstraction layer since there are
106 #no accurate enough standards
107 82 init_cpp_default='gcc -E -Wall -Wextra' init_cpp_default='gcc -E -Wall -Wextra'
108 83 init_cc_default='gcc -nostdinc -Wall -Wextra -std=gnu99 -O0 -c' init_cc_default='gcc -nostdinc -Wall -Wextra -std=gnu99 -O0 -c'
109 84 init_ld_default='ld -nostdlib -O10 -s' init_ld_default='ld -nostdlib -O10 -s'
 
... ... set_default $CMDLINE_SET
114 89
115 90 ################################################################################ ################################################################################
116 91
117 show_help(){
118 cat <<EOF
119 Usage: make [options] [operations]
120
121 Operations: [default is to build the the init process binary]:
122 clean clean build products
123
124 Options: [defaults in brackets after descriptions]
92 show_help()
93 {
94 cat <<EOF
95 Usage: make [options]
125 96
126 97 Help options: Help options:
127 98 --help print this message --help print this message
 
... ... Standard options:
131 102 --no-tty init won't respawn login processes on ttys --no-tty init won't respawn login processes on ttys
132 103
133 104 Advanced options: Advanced options:
134 --init-cpp=CPP use CPP compiler command line CPP for target init process [$init_cpp_default]
135 --init-cc=CC use C compiler command line CC for target init process objects [$init_cc_default]
136 --init-ld=LD use linker command line LD for target init process [$init_ld_default]
105 --init-cpp=CPP use CPP compiler command line CPP for target init process [$init_cpp]
106 --init-cc=CC use C compiler command line CC for target init process objects [$init_cc]
107 --init-ld=LD use linker command line LD for target init process [$init_ld]
137 108 --init-ulinux-arch=ARCH use ulinux ARCH for target init process [$init_ulinux_arch] --init-ulinux-arch=ARCH use ulinux ARCH for target init process [$init_ulinux_arch]
138 109 EOF EOF
139 exit 0
110 exit 0
140 111 } }
141 112
142 113 ################################################################################ ################################################################################
143 114
144 for opt do
145 optval="${opt#*=}"
146 case "$opt" in
147 clean) clean_do
148 ;;
149 --help|-h) show_help
150 ;;
151 --quiet)
152 CPPFLAGS="$CPPFLAGS -DQUIET"
153 init_ulinux_src_files="$init_ulinux_src_files/ulinux\/utils\/ascii\/string\/vsprintf.c/"
154 init_ulinux_src_files="$init_ulinux_src_files/ulinux\/utils\/mem.c/"
155 ;;
156 --no-tty) CPPFLAGS="$CPPFLAGS -DNO_TTY"
157 ;;
158 *)
159 optname=${opt%%=*}
160 optname=${optname#--}
161 optname=$(echo "$optname" | sed 's/-/_/g')
162 if is_in $optname $CMDLINE_SET; then
163 eval $optname='$optval'
164 else
165 die_unknown $opt
166 fi
167 ;;
168 esac
169 done
115 sep_start;printf 'paths:\n'
116 src_path=$(readlink -f $(dirname "$0"))
117 build_path=$(readlink -f .)
118 printf "source path is $src_path\n"
119 printf "build path is $build_path\n"
120 sep_end
170 121
171 122 ################################################################################ ################################################################################
172 123
173 sep_start;echo 'looking for source path:'
174 if test -f make; then
175 src_path=.
176 else
177 src_path=$(cd $(dirname "$0"); pwd)
178 echo "$src_path" | grep -q '[[:blank:]]' &&
179 die "out of tree builds are impossible with whitespace in source path."
180 test -e "$src_path/config.h" &&
181 die "out of tree builds are impossible with config.h in source dir."
124
125 show_help_do=
126 for opt do
127 optval="${opt#*=}"
128 case "$opt" in
129 --help|-h)
130 show_help_do=yes #defer until we have all our options
131 ;;
132 --quiet)
133 CPPFLAGS="$CPPFLAGS -DQUIET"
134 init_ulinux_src_files=
135 ;;
136 --no-tty)
137 CPPFLAGS="$CPPFLAGS -DNO_TTY"
138 ;;
139 *)
140 optname=${opt%%=*}
141 optname=${optname#--}
142 optname=$(printf "$optname" | sed 's/-/_/g')
143 if is_in $optname $CMDLINE_SET; then
144 eval $optname='$optval' # 1 level indirection
145 else
146 printf "unknown option \"$opt\"\n"
147 printf "see $0 --help for available options\n"
148 exit 1
149 fi
150 ;;
151 esac
152 done
153 if test $show_help_do; then
154 show_help
182 155 fi fi
183 echo "source path is $src_path";sep_end
184 156
185 157 ################################################################################ ################################################################################
186 158
187 sep_start;echo 'configure ulinux src tree for target arch:'
188 rm -f $src_path/ulinux/arch
189 ln -s archs/$init_ulinux_arch $src_path/ulinux/arch
190 echo "init ulinux arch is $init_ulinux_arch"
159 sep_start;printf 'configure ulinux src tree for target arch:\n'
160 rm -f $build_path/ulinux/arch
161 mkdir -p $build_path/ulinux
162 ln -sTf $src_path/ulinux/archs/$init_ulinux_arch $build_path/ulinux/arch
163 printf "init ulinux arch is $init_ulinux_arch\n"
191 164 sep_end sep_end
192 165
193 166 ################################################################################ ################################################################################
 
... ... all_init_src_files="$init_src_files $init_ulinux_src_files"
197 170
198 171 ################################################################################ ################################################################################
199 172
200 sep_start;echo 'C preprocess init src files:'
173 sep_start;printf 'C preprocess init src files:\n'
201 174 for init_src_file in $all_init_src_files for init_src_file in $all_init_src_files
202 175 do do
203 init_pp_c_file=${init_src_file%.c}
204 init_pp_c_file=${init_pp_c_file}.pp.c
205 echo "INIT_CPP $init_src_file->$init_pp_c_file"
206 mkdir -p $(dirname $init_pp_c_file)
207 $init_cpp $CPPFLAGS -I. -I$src_path -o $init_pp_c_file \
208 $src_path/$init_src_file
209 init_pp_c_files="$init_pp_c_file $init_pp_c_files"
176 init_pp_c_file=${init_src_file%.c}.pp.c
177 printf "INIT_CPP $src_path/$init_src_file->$build_path/$init_pp_c_file\n"
178 mkdir -p $(dirname $init_pp_c_file)
179 $init_cpp $CPPFLAGS -I$build_path -I$src_path \
180 -o $build_path/$init_pp_c_file $src_path/$init_src_file
181 init_pp_c_files="$init_pp_c_file $init_pp_c_files"
210 182 done done
211 183 sep_end sep_end
212 184
213 185 ################################################################################ ################################################################################
214 186
215 sep_start;echo 'compile init preprocessed src files:'
187 sep_start;printf 'compile init preprocessed src files:\n'
216 188 for init_pp_c_file in $init_pp_c_files for init_pp_c_file in $init_pp_c_files
217 189 do do
218 init_obj_file=${init_pp_c_file%.pp.c}
219 init_obj_file=${init_obj_file}.o
220 echo "INIT_CC $init_pp_c_file-->$init_obj_file"
221 $init_cc $CFLAGS -o $init_obj_file $init_pp_c_file
222 init_obj_files="$init_obj_file $init_obj_files"
190 init_obj_file=${init_pp_c_file%.pp.c}.o
191 printf "INIT_CC $build_path/$init_pp_c_file-->$build_path/$init_obj_file\n"
192 $init_cc $CFLAGS -o $build_path/$init_obj_file \
193 $build_path/$init_pp_c_file
194 init_obj_files="$init_obj_file $init_obj_files"
223 195 done done
224 196 sep_end sep_end
225 197
226 198 ################################################################################ ################################################################################
227 199
228 sep_start;echo 'link the init objects to produce the init binary:'
229 echo "INIT_LD $init_file_name"
230 echo $init_ld -o $init_file_name $init_obj_files
231 $init_ld -o $init_file_name $init_obj_files
200 sep_start;printf 'link the init objects to produce the init binary:\n'
201 printf "INIT_LD $init_file_name\n"
202 printf "$init_ld -o $build_path/$init_file_name $build_path/$init_obj_files\n"
203 $init_ld -o $build_path/$init_file_name $build_path/$init_obj_files
232 204 sep_end sep_end
205 # vim: set ts=8 sw=0 noexpandtab:
File out.h changed (mode: 100644) (index 9cc13a5..b4aa345)
1 1 #ifndef OUT_H #ifndef OUT_H
2 2 #define OUT_H #define OUT_H
3 /*******************************************************************************
4 this code is protected by the GNU affero GPLv3
5 author:Sylvain BERTRAND <sylvain.bertrand AT gmail dot com>
6 *******************************************************************************/
3 /*
4 * this code is protected by the GNU affero GPLv3
5 * author:Sylvain BERTRAND <sylvain.bertrand AT legeek DOT net>
6 */
7 7 #ifndef QUIET #ifndef QUIET
8 #include <stdarg.h>
9 #include <ulinux/utils/mem.h>
10 #include <ulinux/utils/ascii/string/vsprintf.h>
8 #include <stdarg.h>
9 #include <ulinux/utils/mem.h>
10 #include <ulinux/utils/ascii/string/vsprintf.h>
11
12 #define PRE "muinit:"
13 #define DPRINTF_BUF_SZ 1024
11 14
12 #define PRE "muinit:"
15 #ifdef INIT_C
16 static ulinux_u8 g_dprintf_buf[DPRINTF_BUF_SZ];
17 #else
18 extern ulinux_u8 *g_dprintf_buf;
19 #endif
13 20
14 #ifdef INIT_C
15 ulinux_u8 *g_dprintf_buf;
21 #define OUT(f, ...) ulinux_dprintf(0, g_dprintf_buf, DPRINTF_BUF_SZ, (ulinux_u8*)(f), ##__VA_ARGS__)
16 22 #else #else
17 extern ulinux_u8 *g_dprintf_buf;
18 #endif
19
20 #define DPRINTF_BUF_SZ 1024
21 #define OUT(f,...) ulinux_dprintf(0,g_dprintf_buf,DPRINTF_BUF_SZ,\
22 (ulinux_u8*)(f),##__VA_ARGS__)
23 #else
24 #define PRE
25 #define OUT(f,...)
23 #define PRE
24 #define OUT(f, ...)
26 25 #endif #endif
26 /* vim: set ts=4 sw=0 noexpandtab: */
27 27 #endif #endif
File script/sysstart deleted (index 26e3333..0000000)
1 #!/bin/sh
2 export PATH=/sbin:/bin:/usr/sbin:/usr/bin
3
4 mount -o nosuid,nodev,noexec,relatime -t proc proc /proc
5 #for mount utils
6 ln -sf /proc/self/mounts /etc/mtab
7 mount -o nosuid,nodev,noexec,relatime -t sysfs sysfs /sys
8
9 #-------------------------------------------------------------------------------
10 #mount /dev
11 mount -o exec,nosuid,relatime,size=10M,mode=0755 -t devtmpfs udev /dev
12 #syslog-ng is going amok, but still /dev/log is mandatory to many software
13 ln -sf null /dev/log
14
15 mkdir -m 0755 -p /dev/pts
16 mount -o relatime,gid=5,mode=0620 -t devpts devpts /dev/pts
17
18 mkdir -m 1777 -p /dev/shm
19 mount -o nosuid,nodev,noexec,relatime -t tmpfs shm /dev/shm
20 #-------------------------------------------------------------------------------
21
22 mount -o nosuid,nodev,relatime,mode=0755 -t tmpfs tmpfs /run
23
24 rm -Rf /tmp
25 mkdir /tmp
26 chmod 1777 /tmp
27 #set the default hostname in linux compilation
28 #hostname "amddev"
29
30 #-------------------------------------------------------------------------------
31 #mudev
32 modprobe unix
33 udevd --daemon
34
35 udevadm trigger --type=subsystems --action=add
36 udevadm trigger --type=devices --action=add
37
38 #those modules need /dev nodes
39 modprobe rtc-cmos
40
41 udevadm settle
42 #-------------------------------------------------------------------------------
43
44 #-------------------------------------------------------------------------------
45 #usb
46 modprobe ehci-hcd
47 modprobe ohci-hcd
48 modprobe usbhid
49 modprobe evdev
50 #-------------------------------------------------------------------------------
51
52 #-------------------------------------------------------------------------------
53 #network, could be NetworkManager (KLUDGE!), or a simple dhcp client, or IPv6
54 #autoconfiguration...
55 ip addr add 127.0.0.1/8 dev lo
56 ip addr add 192.168.1.5/24 dev eth0
57 ip link set dev lo up
58 ip link set dev eth0 up
59 ip route add default via 192.168.1.1 dev eth0
60 #-------------------------------------------------------------------------------
61
62 #-------------------------------------------------------------------------------
63 #CPUs
64 #BROKEN ON linux 3.15.3
65 #modprobe acpi-cpufreq
66 #modprobe cpufreq_ondemand
67 #cpufreq-set --cpu 0 --governor ondemand
68 #cpufreq-set --cpu 1 --governor ondemand
69 #-------------------------------------------------------------------------------
70
71 hwclock --utc --hctosys
72
73 #-------------------------------------------------------------------------------
74 #block scheduler, for a SSD drive, cfq I/O scheduler is useless
75 #modprobe cfq-iosched
76 #echo "cfq" > /sys/block/sda/queue/scheduler
77 #-------------------------------------------------------------------------------
78
79 #-------------------------------------------------------------------------------
80 ##utmp/wtmp (I don't even use that stuff anymore, just for reference)
81 #: >/var/run/utmp
82 #chgrp utmp /var/run/utmp 2>/dev/null
83 #chmod 0664 /var/run/utmp
84 #if test ! -e /var/log/wtmp; then
85 # : >/var/log/wtmp
86 # chgrp utmp /var/log/wtmp 2>/dev/null
87 # chmod 0664 /var/log/wtmp
88 #fi
89 #-------------------------------------------------------------------------------
90
91 #-------------------------------------------------------------------------------
92 #syslog-ng &
93 chronyd &
94 #/usr/libexec/fcron &
95 #/usr/sbin/sshd &
96 #-------------------------------------------------------------------------------
File script/sysstop deleted (index 6994645..0000000)
1 #!/bin/sh
2 trap - INT QUIT TERM
3
4 if test -e /run/chronyd.pid; then
5 /usr/bin/pkill --pidfile /run/chronyd.pid
6 else
7 echo "missing /run/chronyd.pid" 1>&2
8 fi
9
10 if test -e /var/run/fcron.pid; then
11 /usr/bin/pkill --pidfile /var/run/fcron.pid
12 else
13 echo "missing /var/run/fcron.pid" 1>&2
14 fi
15
16 #we used static configuration, hence no dhcp client
17 #/sbin/dhcpcd --exit
18
19 if test -e /var/run/syslog-ng.pid; then
20 /usr/bin/pkill --pidfile /var/run/syslog-ng.pid
21 else
22 echo "missing /var/run/syslog-ng.pid" 1>&2
23 fi
24
25 /sbin/udevadm control --exit
26 /sbin/hwclock --utc --systohc
27
28 /bin/sync
29
30 if test "$(basename $0)" = "sysreboot"; then
31 /sbin/reboot -f
32 fi
33
34 /sbin/poweroff -f
File ulinux/README changed (mode: 100644) (index c586e4a..b689952)
2 2 your applications. your applications.
3 3
4 4 String pointers are u8* because void pointers are kind of out of place. String pointers are u8* because void pointers are kind of out of place.
5
6 There are more recent version of ulinux out there, but it does not matter.
File ulinux/arch deleted (index 6e4e80d..0000000)
1 archs/x86_64
File ulinux/compiler_misc.h changed (mode: 100644) (index 4982add..26659c1)
4 4 this code is protected by the GNU affero GPLv3 this code is protected by the GNU affero GPLv3
5 5 author:Sylvain BERTRAND <sylvain.bertrand AT gmail dot com> author:Sylvain BERTRAND <sylvain.bertrand AT gmail dot com>
6 6 *******************************************************************************/ *******************************************************************************/
7 #if GCC_VERSION >= 40500
8 #define unreachable() __builtin_unreachable()
7 #ifdef __GNUC__
8 #define unreachable() __builtin_unreachable()
9 9 #else #else
10 #define unreachable()
10 #define unreachable()
11 11 #endif #endif
12 12 #endif #endif
File ulinux_namespace.h changed (mode: 100644) (index f0dd85b..b3bf288)
18 18 #define i int #define i int
19 19 #define l long #define l long
20 20 #define ul unsigned long #define ul unsigned long
21 #define loop while(1)
21 #define loop for(;;)
22 22 #endif #endif
Hints:
Before first commit, do not forget to setup your git environment:
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git config --global user.email "your@email_here"

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Clone this repository using git:
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This means that your pushed commits will automatically be transformed into a merge request:
... clone the repository ...
... make some changes and some commits ...
git push origin main