mirror of
https://github.com/intel/linux-sgx
synced 2026-06-08 14:49:32 +00:00
Li, Xun
c505e6129a
Added support for Reproducible Enclave Build using Docker file. Added support for Intel AVX-512 instructions and Intel SHA Extensions New Instructions (SHA-NI) in trusted libraries. Support both EPID and ECDSA based quote for quoting related interfaces in sgx_uae_service library. Updated key exchange library to support both EPID and ECDSA based remote attestation. Support new interface to check platform information blob from remote attestation response message. Fixed bugs. Signed-off-by: Li, Xun <xun.li@intel.com>
138 lines
3.1 KiB
C
138 lines
3.1 KiB
C
/* libunwind - a platform-independent unwind library
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Copyright (C) 2011 Google, Inc
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Contributed by Paul Pluzhnikov <ppluzhnikov@google.com>
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Permission is hereby granted, free of charge, to any person obtaining
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a copy of this software and associated documentation files (the
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"Software"), to deal in the Software without restriction, including
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without limitation the rights to use, copy, modify, merge, publish,
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distribute, sublicense, and/or sell copies of the Software, and to
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permit persons to whom the Software is furnished to do so, subject to
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the following conditions:
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The above copyright notice and this permission notice shall be
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included in all copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
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LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
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OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
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WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
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#define UNW_LOCAL_ONLY
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#include <libunwind.h>
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#include <unistd.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <dlfcn.h>
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#include <pthread.h>
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#define panic(args...) \
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{ fprintf (stderr, args); exit (-1); }
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int num_mallocs;
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int num_callocs;
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int in_unwind;
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void *
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calloc(size_t n, size_t s)
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{
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static void * (*func)(size_t, size_t);
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#ifdef __GLIBC__
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/* In glibc, dlsym() calls calloc. Calling dlsym(RTLD_NEXT, "calloc") here
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causes infinite recursion. Instead, we simply use it by its other
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name. */
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extern void *__libc_calloc(size_t, size_t);
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if (!func)
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func = &__libc_calloc;
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#else
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if(!func)
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func = dlsym(RTLD_NEXT, "calloc");
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#endif
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if (in_unwind) {
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num_callocs++;
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return NULL;
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} else {
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return func(n, s);
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}
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}
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void *
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malloc(size_t s)
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{
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static void * (*func)(size_t);
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if(!func)
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func = dlsym(RTLD_NEXT, "malloc");
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if (in_unwind) {
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num_mallocs++;
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return NULL;
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} else {
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return func(s);
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}
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}
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static void
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do_backtrace (void)
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{
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const int num_levels = 100;
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void *pc[num_levels];
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in_unwind = 1;
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unw_backtrace(pc, num_levels);
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in_unwind = 0;
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}
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void
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foo3 (void)
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{
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do_backtrace ();
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}
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void
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foo2 (void)
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{
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foo3 ();
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}
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void
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foo1 (void)
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{
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foo2 ();
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}
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int
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main (void)
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{
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int i, num_errors;
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/* Create (and leak) 100 TSDs, then call backtrace()
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and check that it doesn't call malloc()/calloc(). */
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for (i = 0; i < 100; ++i) {
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pthread_key_t key;
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if (pthread_key_create (&key, NULL))
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panic ("FAILURE: unable to create key %d\n", i);
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}
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/* Call backtrace right after thread creation,
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* where we are sure that we're not inside malloc */
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do_backtrace();
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num_mallocs = num_callocs = 0;
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foo1 ();
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num_errors = num_mallocs + num_callocs;
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if (num_errors > 0)
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{
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fprintf (stderr,
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"FAILURE: detected %d error%s (malloc: %d, calloc: %d)\n",
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num_errors, num_errors > 1 ? "s" : "",
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num_mallocs, num_callocs);
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exit (-1);
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}
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return 0;
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}
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