d937b0a10c
Summary: Initially, Scudo had a monolithic design where both C and C++ functions were living in the same library. This was not necessarily ideal, and with the work on -fsanitize=scudo, it became more apparent that this needed to change. We are splitting the new/delete interceptor in their own C++ library. This allows more flexibility, notably with regard to std::bad_alloc when the work is done. This also allows us to not link new & delete when using pure C. Additionally, we add the UBSan runtimes with Scudo, in order to be able to have a -fsanitize=scudo,undefined in Clang (see work in D39334). The changes in this patch: - split the cxx specific code in the scudo cmake file into a new library; (remove the spurious foreach loop, that was not necessary) - add the UBSan runtimes (both C and C++); - change the test cmake file to allow for specific C & C++ tests; - make C tests pure C, rename their extension accordingly. Reviewers: alekseyshl Reviewed By: alekseyshl Subscribers: srhines, mgorny, llvm-commits Differential Revision: https://reviews.llvm.org/D39461 llvm-svn: 317097
41 lines
867 B
C
41 lines
867 B
C
// RUN: %clang_scudo %s -o %t
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// RUN: %run %t 2>&1
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// Verifies that calling malloc in a preinit_array function succeeds, and that
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// the resulting pointer can be freed at program termination.
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// On some Android versions, calling mmap() from a preinit function segfaults.
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// It looks like __mmap2.S ends up calling a NULL function pointer.
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// UNSUPPORTED: android
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#include <assert.h>
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#include <stdlib.h>
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#include <string.h>
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static void *global_p = NULL;
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void __init(void) {
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global_p = malloc(1);
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if (!global_p)
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exit(1);
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}
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void __fini(void) {
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if (global_p)
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free(global_p);
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}
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int main(int argc, char **argv)
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{
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void *p = malloc(1);
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assert(p);
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free(p);
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return 0;
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}
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__attribute__((section(".preinit_array"), used))
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void (*__local_preinit)(void) = __init;
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__attribute__((section(".fini_array"), used))
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void (*__local_fini)(void) = __fini;
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