Mercurial > pub > dyncall > dyncall
view test/thunk/test_thunk.c @ 226:6e40eb9fb261
- different strategy for mach-o files to lookup symbol names, in order to be consistent with other functions (that use dladdr() and dlsym() calls, which mostly don't use '_' prefixes)
author | Tassilo Philipp |
---|---|
date | Sat, 15 Apr 2017 22:02:58 +0200 |
parents | 3999750fae28 |
children | f5577f6bf97a |
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/* Package: dyncall Library: test File: test/thunk/test_thunk.c Description: License: Copyright (c) 2011-2015 Daniel Adler <dadler@uni-goettingen.de>, Tassilo Philipp <tphilipp@potion-studios.com> Permission to use, copy, modify, and distribute this software for any purpose with or without fee is hereby granted, provided that the above copyright notice and this permission notice appear in all copies. THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. */ #include "../../dyncall/dyncall.h" #include "../../dyncallback/dyncall_thunk.h" #include "../../dyncallback/dyncall_alloc_wx.h" #include "../common/platformInit.h" #include "../common/platformInit.c" /* Impl. for functions only used in this translation unit */ /** ** test: thunks with several allocation modes ** such as on stack, on heap and explicit wx ** **/ #include <assert.h> #include <errno.h> #include <signal.h> #include <setjmp.h> #include <string.h> jmp_buf jbuf; void segv_handler(int sig) { longjmp(jbuf, 1); } void my_entry(const char* text) { printf("%s: %d\n", text, strcmp(text, "wx") == 0 || strcmp(text, "stack") == 0 || strcmp(text, "heap") == 0); /* @@@ */ } typedef void (printfun)(const char*); void test_stack() { DCThunk t; printfun* fp; dcbInitThunk(&t, &my_entry); fp = (printfun*)&t; if(setjmp(jbuf) != 0) printf("sigsegv\n"); else fp("stack"); } #include <stdlib.h> void test_heap() { printfun* fp; DCThunk* p = (DCThunk*)malloc(sizeof(DCThunk)); if(!p) { printf("0\n"); return; } dcbInitThunk(p, &my_entry); fp = (printfun*)p; if(setjmp(jbuf) != 0) printf("sigsegv\n"); else fp("heap"); free(p); } void test_wx() { DCThunk* p; printfun* fp; int err = dcAllocWX(sizeof(DCThunk), (void**)&p); if(err || !p) { printf("0\n"); return; } dcbInitThunk(p, &my_entry); err = dcInitExecWX((void*)p, sizeof(DCThunk)); if(err) { dcFreeWX((void*)p, sizeof(DCThunk)); printf("0\n"); return; } fp = (printfun*)p; if(setjmp(jbuf) != 0) printf("sigsegv\n"); else fp("wx"); dcFreeWX((void*)p, sizeof(DCThunk)); } int main() { dcTest_initPlatform(); signal(SIGSEGV, segv_handler); printf("Allocating ...\n"); printf("... W^X memory: "); test_wx(); printf("... heap memory: "); test_heap(); printf("... stack memory: "); test_stack(); dcTest_deInitPlatform(); return 0; }