Mercurial > pub > dyncall > dyncall
annotate test/dynload_plain/dynload_plain.c @ 223:7076f551faf5
- dynload mach-o handling fixes for 64bit platforms
- dynload test code improvements
- dynload(3) clarification
| author | Tassilo Philipp |
|---|---|
| date | Sat, 15 Apr 2017 15:21:37 +0200 |
| parents | cb56f077fd37 |
| children | 8216c86b4cbc |
| rev | line source |
|---|---|
| 214 | 1 /* |
| 2 | |
| 3 Package: dyncall | |
| 4 Library: test | |
| 5 File: test/dynload_plain/dynload_plain.c | |
| 6 Description: | |
| 7 License: | |
| 8 | |
| 9 Copyright (c) 2017 Tassilo Philipp <tphilipp@potion-studios.com> | |
| 10 | |
| 11 Permission to use, copy, modify, and distribute this software for any | |
| 12 purpose with or without fee is hereby granted, provided that the above | |
| 13 copyright notice and this permission notice appear in all copies. | |
| 14 | |
| 15 THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES | |
| 16 WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF | |
| 17 MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR | |
| 18 ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES | |
| 19 WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN | |
| 20 ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF | |
| 21 OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. | |
| 22 | |
| 23 */ | |
| 24 | |
| 25 | |
| 26 #include "../../dynload/dynload.h" | |
| 27 #include "../common/platformInit.h" | |
| 28 | |
| 29 #include <string.h> | |
| 30 #include <unistd.h> | |
| 31 | |
| 32 | |
| 33 int main(int argc, char* argv[]) | |
| 34 { | |
| 35 int r = 0, i; | |
| 36 void* p; | |
| 37 DLLib* pLib; | |
| 38 const char* path = NULL; | |
| 39 const char* clibs[] = { // hacky/lazy list of some clib paths per platform | |
| 40 "/lib/libc.so", | |
| 41 "/lib/libc.so.6", | |
| 42 "/lib/libc.so.7", | |
| 43 "/lib64/libc.so", | |
| 44 "/lib64/libc.so.6", | |
| 45 "/lib64/libc.so.7", | |
| 46 "/lib32/libc.so", | |
| 47 "/lib32/libc.so.6", | |
| 48 "/lib32/libc.so.7", | |
|
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49 "/usr/lib/system/libsystem_c.dylib", |
| 214 | 50 "/usr/lib/libc.dylib", |
| 51 "C:\\Windows\\system32\\msvcrt.dll" | |
| 52 }; | |
| 53 | |
| 54 | |
| 55 for(i=0; i<(sizeof(clibs)/sizeof(const char*)); ++i) { | |
|
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56 if(access(clibs[i], F_OK) != -1) { |
| 214 | 57 path = clibs[i]; |
|
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58 break; |
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59 } |
| 214 | 60 } |
| 61 | |
| 62 if(path) { | |
| 63 printf("using clib to test at: %s\n", path); | |
| 64 ++r; | |
| 65 | |
| 66 // dl*Library tests | |
| 67 // -------- | |
| 68 pLib = dlLoadLibrary(path); // check if we can load a lib | |
| 69 if(pLib) { | |
| 70 printf("pLib handle: %p\n", pLib); | |
| 71 ++r; | |
| 72 | |
| 73 p = dlFindSymbol(pLib, "printf"); // check if we can lookup a symbol | |
| 74 printf("printf at: %p\n", p); | |
| 75 r += (p != NULL); | |
| 76 | |
| 77 dlFreeLibrary(pLib); | |
| 78 } | |
| 79 else | |
| 80 printf("unable to open library %s\n", path); | |
| 81 | |
| 82 | |
| 83 // dlSyms* tests (intentionally after freeing lib above, as they work standalone) | |
| 84 // -------- | |
| 85 DLSyms* pSyms = dlSymsInit(path); // check if we can iterate over symbols - init | |
| 86 if(pSyms) { | |
| 87 int n; | |
| 88 const char* name; | |
| 89 | |
| 90 printf("pSyms handle: %p\n", pSyms); | |
| 91 ++r; | |
| 92 | |
| 93 n = dlSymsCount(pSyms); // check if there are some syms to iterate over | |
| 94 printf("num of libc symbols: %d\n", n); | |
| 95 r += (n > 0); | |
| 96 | |
| 97 for(i=0; i<n; ++i) { | |
| 98 name = dlSymsName(pSyms, i); | |
| 218 | 99 if(name && strcmp(name, "printf") == 0) { // check if we find "printf" also in iterated symbols |
| 214 | 100 ++r; |
| 101 break; | |
| 102 } | |
| 103 } | |
| 104 printf("printf symbol found by iteration: %d\n", i<n); | |
| 105 | |
|
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changeset
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106 name = (i<n) ? dlSymsName(pSyms, i) : NULL; |
| 218 | 107 r += (name && strcmp(name, "printf") == 0); // check if we can lookup "printf" by index |
| 108 printf("printf symbol name by index: %s\n", name?name:""); | |
| 214 | 109 |
| 110 pLib = dlLoadLibrary(path); // check if we can resolve ptr -> name, | |
| 111 if(pLib) { // need to lookup by name again, first | |
| 112 p = dlFindSymbol(pLib, "printf"); | |
| 113 name = dlSymsNameFromValue(pSyms, p); | |
| 218 | 114 printf("printf symbol name by its own address (%p): %s\n", p, name?name:""); |
| 115 r += (name && strcmp(name, "printf") == 0); | |
| 214 | 116 dlFreeLibrary(pLib); |
| 117 } | |
| 118 | |
| 119 dlSymsCleanup(pSyms); | |
| 120 } | |
| 121 else | |
| 122 printf("dlSymsInit failed\n"); | |
| 123 } | |
| 124 | |
| 125 // All worked if we got a score of 6 right ones | |
| 126 r = (r == 8); | |
| 127 printf("result: dynload_plain: %d\n", r); | |
| 128 return !r; | |
| 129 } | |
| 130 |