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| Rev | Author | Line No. | Line |
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| 2933 | svoboda | 1 | /* |
| 2 | * Copyright (c) 2008 Jiri Svoboda |
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| 3 | * All rights reserved. |
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| 4 | * |
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| 5 | * Redistribution and use in source and binary forms, with or without |
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| 6 | * modification, are permitted provided that the following conditions |
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| 7 | * are met: |
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| 8 | * |
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| 9 | * - Redistributions of source code must retain the above copyright |
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| 10 | * notice, this list of conditions and the following disclaimer. |
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| 11 | * - Redistributions in binary form must reproduce the above copyright |
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| 12 | * notice, this list of conditions and the following disclaimer in the |
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| 13 | * documentation and/or other materials provided with the distribution. |
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| 14 | * - The name of the author may not be used to endorse or promote products |
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| 15 | * derived from this software without specific prior written permission. |
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| 16 | * |
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| 17 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
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| 18 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
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| 19 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
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| 20 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
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| 21 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
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| 22 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
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| 23 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
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| 24 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
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| 25 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
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| 26 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
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| 27 | */ |
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| 28 | |||
| 29 | /** @addtogroup rtld rtld |
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| 30 | * @brief |
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| 31 | * @{ |
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| 32 | */ |
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| 33 | /** |
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| 34 | * @file |
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| 35 | */ |
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| 36 | |||
| 2952 | svoboda | 37 | #include <stdio.h> |
| 2954 | svoboda | 38 | #include <unistd.h> |
| 39 | #include <fcntl.h> |
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| 2952 | svoboda | 40 | |
| 2965 | svoboda | 41 | #include <rtld.h> |
| 2968 | svoboda | 42 | #include <dynamic.h> |
| 2969 | svoboda | 43 | #include <pcb.h> |
| 44 | #include <elf_load.h> |
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| 2959 | svoboda | 45 | |
| 2933 | svoboda | 46 | static void kputint(unsigned i) |
| 47 | { |
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| 48 | unsigned dummy; |
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| 49 | asm volatile ( |
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| 50 | "movl $30, %%eax;" |
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| 51 | "int $0x30" |
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| 52 | : "=d" (dummy) /* output - %edx clobbered */ |
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| 53 | : "d" (i) /* input */ |
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| 54 | : "%eax","%ecx" /* all scratch registers clobbered */ |
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| 2952 | svoboda | 55 | ); |
| 2933 | svoboda | 56 | } |
| 57 | |||
| 58 | void _rtld_main(void) |
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| 59 | { |
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| 2959 | svoboda | 60 | pcb_t *pcb; |
| 2968 | svoboda | 61 | static dyn_info_t dyn_info; |
| 2969 | svoboda | 62 | elf_info_t lib_info; |
| 63 | int rc; |
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| 2933 | svoboda | 64 | |
| 2959 | svoboda | 65 | printf("Hello, world! (from rtld)\n"); |
| 66 | getchar(); |
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| 2933 | svoboda | 67 | |
| 2969 | svoboda | 68 | printf("Parse .dynamic section\n"); |
| 2959 | svoboda | 69 | pcb = (pcb_t *)PCB_ADDRESS; |
| 2968 | svoboda | 70 | dynamic_parse(pcb->dynamic, 0, &dyn_info); |
| 2969 | svoboda | 71 | |
| 72 | printf("Program requested library '%s'\n", dyn_info.needed); |
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| 73 | |||
| 2972 | svoboda | 74 | rc = elf_load_file("/libtest.so.0", 0x20000, &lib_info); |
| 2969 | svoboda | 75 | if (rc < 0) { |
| 76 | printf("failed to load library\n"); |
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| 77 | return; |
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| 78 | } |
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| 79 | |||
| 80 | printf("Run program..\n"); |
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| 2959 | svoboda | 81 | pcb->entry(); |
| 2933 | svoboda | 82 | } |
| 83 | |||
| 84 | /** @} |
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| 85 | */ |