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comparison test/dynload_plain/dynload_plain.c @ 382:dd5d03483314

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- dynload changes to support macos >= 11.0.1 "built-in dynamic linker cache of all system-provided libraries" (those dylibs are no longer present on the fs)" * dynload_plain test code changes to reflect this * note in doc - changed dynload_plain to not do inode-based tests on windows
author Tassilo Philipp
date Wed, 20 Jan 2021 13:49:43 +0100
parents 3124f4c4f293
children 7608e34098b0
comparison
equal deleted inserted replaced
381:fccbb45a2dae 382:dd5d03483314
65 int r = 0, i; 65 int r = 0, i;
66 void* p; 66 void* p;
67 DLLib* pLib; 67 DLLib* pLib;
68 DLSyms* pSyms; 68 DLSyms* pSyms;
69 const char* path = NULL; 69 const char* path = NULL;
70 int cmp_inode = 1;
71
70 /* hacky/lazy list of some clib paths per platform - more/others, like version-suffixed ones */ 72 /* hacky/lazy list of some clib paths per platform - more/others, like version-suffixed ones */
71 /* can be specified in Makefile; this avoids trying to write portable directory traversal stuff */ 73 /* can be specified in Makefile; this avoids trying to write portable directory traversal stuff */
72 const char* clibs[] = { 74 const char* clibs[] = {
73 #if defined(DEF_C_DYLIB) 75 #if defined(DEF_C_DYLIB)
74 DEF_C_DYLIB, 76 DEF_C_DYLIB,
76 /* fallback guessing if not provided by Makefile */ 78 /* fallback guessing if not provided by Makefile */
77 "/lib/libc.so", 79 "/lib/libc.so",
78 "/lib32/libc.so", 80 "/lib32/libc.so",
79 "/lib64/libc.so", 81 "/lib64/libc.so",
80 "/usr/lib/libc.so", 82 "/usr/lib/libc.so",
81 "/usr/lib/system/libsystem_c.dylib", /* macos */ 83 "/usr/lib/system/libsystem_c.dylib", /* macos - note: not on fs w/ macos >= 11.0.1 */
82 "/usr/lib/libc.dylib", 84 "/usr/lib/libc.dylib",
83 "/boot/system/lib/libroot.so", /* Haiku */ 85 "/boot/system/lib/libroot.so", /* Haiku */
84 "\\ReactOS\\system32\\msvcrt.dll", /* ReactOS */ 86 "\\ReactOS\\system32\\msvcrt.dll", /* ReactOS */
85 "C:\\ReactOS\\system32\\msvcrt.dll", 87 "C:\\ReactOS\\system32\\msvcrt.dll",
86 "\\Windows\\system32\\msvcrt.dll", /* Windows */ 88 "\\Windows\\system32\\msvcrt.dll", /* Windows */
91 for(i=0; i<(sizeof(clibs)/sizeof(const char*)); ++i) { 93 for(i=0; i<(sizeof(clibs)/sizeof(const char*)); ++i) {
92 if(access(clibs[i], F_OK) != -1) { 94 if(access(clibs[i], F_OK) != -1) {
93 path = clibs[i]; 95 path = clibs[i];
94 break; 96 break;
95 } 97 }
98 #if defined(DC__OS_Darwin)
99 /* macos >= 11.0.1 (Big Sur) dylibs might not be on disk but in a sys cache, so dlopen works but not fs checks */
100 else if((pLib = dlLoadLibrary(clibs[i]))) {
101 cmp_inode = 0; /* not dealing with files but dylib sys cache */
102 dlFreeLibrary(pLib);
103 path = clibs[i];
104 break;
105 }
106 #endif
96 } 107 }
97 108
98 if(path) { 109 if(path) {
99 printf("using clib to test at: %s\n", path); 110 printf("using clib to test at: %s\n", path);
100 ++r; 111 ++r;
113 printf("printf at: %p\n", p); 124 printf("printf at: %p\n", p);
114 r += (p != NULL); 125 r += (p != NULL);
115 126
116 bs = dlGetLibraryPath(pLib, queriedPath, 200); 127 bs = dlGetLibraryPath(pLib, queriedPath, 200);
117 if(bs && bs <= 200) { 128 if(bs && bs <= 200) {
118 struct stat st0, st1; /* to check if same file */
119 int b, bs_; 129 int b, bs_;
120 printf("path of lib looked up via handle: %s\n", queriedPath); 130 printf("path of lib looked up via handle: %s\n", queriedPath);
121 b = (stat(path, &st0) != -1) && (stat(queriedPath, &st1) != -1); 131
122 printf("lib (inode:%d) and looked up lib (inode:%d) are same: %d\n", b?st0.st_ino:-1, b?st1.st_ino:-1, b && (st0.st_ino == st1.st_ino)); //@@@ on windows, inode numbers returned here are always 0
123 r += b && (st0.st_ino == st1.st_ino); /* compare if same lib using inode */
124 /*@@@ check if resolved path is absolute*/ 132 /*@@@ check if resolved path is absolute*/
133
134 #if defined(DC_WINDOWS)
135 /* on windows, inode numbers returned by stat(2) tests below are always 0, so don't use those */
136 cmp_inode = 0;
137 #endif
138
139 /* path based check if same lib */
140 if(cmp_inode)
141 {
142 struct stat st0, st1; /* to check if same file */
143 b = (stat(path, &st0) != -1) && (stat(queriedPath, &st1) != -1);
144 printf("lib (inode:%d) and looked up lib (inode:%d) are same: %d\n", b?(int)st0.st_ino:-1, b?(int)st1.st_ino:-1, b && (st0.st_ino == st1.st_ino));
145 r += b && (st0.st_ino == st1.st_ino); /* compare if same lib using inode */
146 }
147 else
148 printf("-- skipping inode based check (doesn't apply to this platform or we are dealing with macos dylib that isn't on fs) --\n");
149
150 /* just load lib with queried path and compare handle */
151 {
152 DLLib* pLib_ = dlLoadLibrary(queriedPath);
153 b = (pLib == pLib_); /* pLib guaranteed to not be NULL, here, so no explicit !pLib_ check */
154 printf("lib (handle:%p) and looked up lib (handle:%p) are same: %d\n", pLib, pLib_, b);
155 r += b;
156 dlFreeLibrary(pLib_); /* dec ref count */
157 }
125 158
126 /* check correct bufsize retval */ 159 /* check correct bufsize retval */
127 b = (bs == strlen(queriedPath) + 1); 160 b = (bs == strlen(queriedPath) + 1);
128 printf("looked up path's needed buffer size (%d) computed correctly 1/2: %d\n", bs, b); 161 printf("looked up path's needed buffer size (%d) computed correctly 1/2: %d\n", bs, b);
129 r += b; 162 r += b;
243 else 276 else
244 printf("dlSymsInit failed\n"); 277 printf("dlSymsInit failed\n");
245 } 278 }
246 279
247 /* Check final score of right ones to see if all worked */ 280 /* Check final score of right ones to see if all worked */
248 r = (r == 16); 281 r = (r == 16 + cmp_inode);
249 printf("result: dynload_plain: %d\n", r); 282 printf("result: dynload_plain: %d\n", r);
250 return !r; 283 return !r;
251 } 284 }
252 285