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1 | /* |
1 | /* |
2 | * Copyright (c) 2008 Jiri Svoboda |
2 | * Copyright (c) 2008 Jiri Svoboda |
3 | * All rights reserved. |
3 | * All rights reserved. |
4 | * |
4 | * |
5 | * Redistribution and use in source and binary forms, with or without |
5 | * Redistribution and use in source and binary forms, with or without |
6 | * modification, are permitted provided that the following conditions |
6 | * modification, are permitted provided that the following conditions |
7 | * are met: |
7 | * are met: |
8 | * |
8 | * |
9 | * - Redistributions of source code must retain the above copyright |
9 | * - Redistributions of source code must retain the above copyright |
10 | * notice, this list of conditions and the following disclaimer. |
10 | * notice, this list of conditions and the following disclaimer. |
11 | * - Redistributions in binary form must reproduce the above copyright |
11 | * - Redistributions in binary form must reproduce the above copyright |
12 | * notice, this list of conditions and the following disclaimer in the |
12 | * notice, this list of conditions and the following disclaimer in the |
13 | * documentation and/or other materials provided with the distribution. |
13 | * documentation and/or other materials provided with the distribution. |
14 | * - The name of the author may not be used to endorse or promote products |
14 | * - The name of the author may not be used to endorse or promote products |
15 | * derived from this software without specific prior written permission. |
15 | * derived from this software without specific prior written permission. |
16 | * |
16 | * |
17 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
17 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
18 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
18 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
19 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
19 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
20 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
20 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
21 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
21 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
22 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
22 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
23 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
23 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
24 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
24 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
25 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
25 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
26 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
26 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
27 | */ |
27 | */ |
28 | 28 | ||
29 | /** @addtogroup rtld rtld |
29 | /** @addtogroup rtld rtld |
30 | * @brief |
30 | * @brief |
31 | * @{ |
31 | * @{ |
32 | */ |
32 | */ |
33 | /** |
33 | /** |
34 | * @file |
34 | * @file |
35 | */ |
35 | */ |
36 | 36 | ||
37 | #include <stdio.h> |
37 | #include <stdio.h> |
38 | #include <unistd.h> |
38 | #include <unistd.h> |
39 | #include <fcntl.h> |
39 | #include <fcntl.h> |
40 | 40 | ||
- | 41 | #include "../../app/iloader/pcb.h" |
|
- | 42 | ||
41 | static void kputint(unsigned i) |
43 | static void kputint(unsigned i) |
42 | { |
44 | { |
43 | unsigned dummy; |
45 | unsigned dummy; |
44 | asm volatile ( |
46 | asm volatile ( |
45 | "movl $30, %%eax;" |
47 | "movl $30, %%eax;" |
46 | "int $0x30" |
48 | "int $0x30" |
47 | : "=d" (dummy) /* output - %edx clobbered */ |
49 | : "=d" (dummy) /* output - %edx clobbered */ |
48 | : "d" (i) /* input */ |
50 | : "d" (i) /* input */ |
49 | : "%eax","%ecx" /* all scratch registers clobbered */ |
51 | : "%eax","%ecx" /* all scratch registers clobbered */ |
50 | ); |
52 | ); |
51 | } |
53 | } |
52 | 54 | ||
53 | int z = 42; |
55 | int z = 42; |
54 | 56 | ||
55 | void _putint(int i); |
57 | void _putint(int i); |
56 | 58 | ||
57 | void test_func(void); |
59 | void test_func(void); |
58 | void test_func(void) |
60 | void test_func(void) |
59 | { |
61 | { |
60 | int fd, rc; |
62 | int fd, rc; |
61 | char buf[5]; |
63 | char buf[5]; |
62 | 64 | ||
63 | kputint(-1); |
- | |
64 | kputint(z); |
- | |
65 | printf("Hello, world! (from rtld)\n"); |
65 | printf("Hello, world! (from rtld)\n"); |
66 | 66 | ||
67 | fd = open("/test", O_RDONLY); |
67 | fd = open("/tetris", O_RDONLY); |
68 | if (fd < 0) { printf("fd<0 ("); _putint(fd); printf(")\n"); } |
68 | if (fd < 0) { printf("fd<0 ("); _putint(fd); printf(")\n"); } |
69 | fd = 0; |
69 | fd = 0; |
70 | 70 | ||
71 | rc = read(fd, &buf, 4); |
71 | rc = read(fd, &buf, 4); |
72 | //printf(" ->%d\n", rc); |
72 | //printf(" ->%d\n", rc); |
73 | buf[4]='\0'; |
73 | buf[4]='\0'; |
74 | printf(buf); |
74 | printf(buf); |
75 | getchar(); |
75 | getchar(); |
76 | 76 | ||
77 | printf("x\n"); |
77 | printf("x\n"); |
78 | while(1); |
78 | while(1); |
79 | - | ||
80 | asm ( |
- | |
81 | "movl $253, %%eax;" |
- | |
82 | "int $0x30" |
- | |
83 | : /* output */ |
- | |
84 | : /* input */ |
- | |
85 | : "%eax","%ecx","%edx" /* all scratch registers clobbered */ |
- | |
86 | ); |
- | |
87 | } |
79 | } |
88 | 80 | ||
89 | 81 | ||
90 | void _rtld_main(void) |
82 | void _rtld_main(void) |
91 | { |
83 | { |
92 | kputint(-1); |
84 | // test_func(); |
93 | 85 | ||
94 | kputint(32); |
86 | pcb_t *pcb; |
95 | 87 | ||
- | 88 | printf("Hello, world! (from rtld)\n"); |
|
96 | test_func(); |
89 | getchar(); |
- | 90 | printf("Run program..\n"); |
|
97 | 91 | ||
- | 92 | pcb = (pcb_t *)PCB_ADDRESS; |
|
98 | kputint(46); |
93 | pcb->entry(); |
99 | } |
94 | } |
100 | 95 | ||
101 | /** @} |
96 | /** @} |
102 | */ |
97 | */ |
103 | 98 |