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>
116 lines
3.1 KiB
C
116 lines
3.1 KiB
C
/* libunwind - a platform-independent unwind library
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Copyright (C) 2003-2004 Hewlett-Packard Co
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Contributed by David Mosberger-Tang <davidm@hpl.hp.com>
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This file is part of libunwind.
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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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#undef _FORTIFY_SOURCE
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#include <assert.h>
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#include <libunwind.h>
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#include <setjmp.h>
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#include <signal.h>
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#include <stdlib.h>
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#include "jmpbuf.h"
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#include "setjmp_i.h"
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#if defined(__GLIBC__)
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#if __GLIBC_PREREQ(2, 4)
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/* Starting with glibc-2.4, {sig,}setjmp in GLIBC obfuscates the
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register values in jmp_buf by XORing them with a "random"
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canary value.
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This makes it impossible to implement longjmp, as we
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can never match wp[JB_SP], unless we decode the canary first.
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Doing so is possible, but doesn't appear to be worth the trouble,
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so we simply defer to glibc longjmp here. */
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#define _longjmp __nonworking__longjmp
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#define longjmp __nonworking_longjmp
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static void _longjmp (jmp_buf env, int val);
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static void longjmp (jmp_buf env, int val);
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#endif
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#endif /* __GLIBC__ */
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void
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_longjmp (jmp_buf env, int val)
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{
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extern int _UI_longjmp_cont;
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unw_context_t uc;
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unw_cursor_t c;
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unw_word_t sp;
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unw_word_t *wp = (unw_word_t *) env;
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if (unw_getcontext (&uc) < 0 || unw_init_local (&c, &uc) < 0)
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abort ();
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do
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{
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if (unw_get_reg (&c, UNW_REG_SP, &sp) < 0)
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abort ();
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#ifdef __FreeBSD__
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if (sp != wp[JB_SP] + sizeof(unw_word_t))
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#else
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if (sp != wp[JB_SP])
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#endif
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continue;
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if (!bsp_match (&c, wp))
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continue;
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/* found the right frame: */
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assert (UNW_NUM_EH_REGS >= 2);
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if (unw_set_reg (&c, UNW_REG_EH + 0, wp[JB_RP]) < 0
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|| unw_set_reg (&c, UNW_REG_EH + 1, val) < 0
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|| unw_set_reg (&c, UNW_REG_IP,
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(unw_word_t) (uintptr_t) &_UI_longjmp_cont))
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abort ();
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unw_resume (&c);
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abort ();
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}
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while (unw_step (&c) > 0);
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abort ();
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}
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#ifdef __GNUC__
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#define STRINGIFY1(x) #x
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#define STRINGIFY(x) STRINGIFY1(x)
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void longjmp (jmp_buf env, int val)
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__attribute__ ((alias (STRINGIFY(_longjmp))));
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#else
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void
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longjmp (jmp_buf env, int val)
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{
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_longjmp (env, val);
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}
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#endif /* __GNUC__ */
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