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illegal instruction error with sgx switchless mode working with intel-sgx-ssl #40

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weicz11 opened this issue Jun 26, 2019 · 1 comment
Open

illegal instruction error with sgx switchless mode working with intel-sgx-ssl #40

weicz11 opened this issue Jun 26, 2019 · 1 comment

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@weicz11
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weicz11 commented Jun 26, 2019

Hi
I encountered "illegal instruction" error when I use sgx switchless mode with intel-sgx-ssl
My link flags are
Enclave_Link_Flags := -Wl,--no-undefined -nostdlib -nodefaultlibs -nostartfiles -L$(SGX_LIBRARY_PATH) -L${SECP256K1_LIB_PATH} -L${SGX_SSL}/lib64 \ -Wl,--whole-archive -lsgx_tswitchless -lsecp256k1 -l$(Trts_Library_Name) -lsgx_tsgxssl -lsgx_tsgxssl_crypto -Wl,--no-whole-archive \ -Wl,--start-group -lsgx_tstdc -lsgx_tcxx -lsgx_tcrypto -l$(Crypto_Library_Name) -l$(Service_Library_Name) -Wl,--end-group \ -Wl,-Bstatic -Wl,-Bsymbolic -Wl,--no-undefined \ -Wl,-pie,-eenclave_entry -Wl,--export-dynamic \ -Wl,--defsym,__ImageBase=0 -Wl,--gc-sections \ -Wl,--version-script=enclave/enclave.lds
and there are two illegal instruction signals before the program exit in sgx-gdb as shown below
`
Program received signal SIGILL, Illegal instruction.
abort () at trts_pic.S:562
562 ud2
Missing separate debuginfos, use: debuginfo-install glibc-2.17-157.el7_3.5.x86_64 libgcc-4.8.5-36.el7_6.2.x86_64 libstdc++-4.8.5-36.el7_6.2.x86_64 protobuf-2.5.0-8.el7.x86_64 zlib-1.2.7-18.el7.x86_64
(gdb) bt
#0 abort () at trts_pic.S:562
#1 0x00007fffe804bb9c in init_exception_handler ()
#2 0x00007fffe802f225 in const_init_exception_handler ()
#3 0x00007fffe8049819 in do_ctors_aux () at global_init.c:157
#4 0x00007fffe80498c9 in init_global_object () at global_init.c:186
#5 0x00007fffe804725b in trts_ecall (ordinal=4294967290, ms=0x604550) at trts_ecall.cpp:272
#6 0x00007fffe8047aef in _random_stack_noinline_wrapper<_status_t, unsigned int, void*, int&, void*&> (f=0x7fffe80471a6 <trts_ecall(uint32_t, void*)>)
at /root/tee_special/linux-sgx/common/inc/sgx_random_buffers.h:76
#7 0x00007fffe8047a90 in random_stack_advance<2048u, _status_t<unsigned int, void*>, int&, void*&> (f=0x7fffe80471a6 <trts_ecall(uint32_t, void*)>)
at /root/tee_special/linux-sgx/common/inc/sgx_random_buffers.h:95
#8 0x00007fffe804765b in do_ecall (index=-6, ms=0x604550, tcs=0x7fffebe5c000) at trts_ecall.cpp:375
#9 0x00007fffe81abdc6 in enter_enclave (index=-6, ms=0x604550, tcs=0x7fffebe5c000, cssa=0) at trts_nsp.cpp:96
#10 0x00007fffe81abf95 in enclave_entry () at trts_pic.S:164
#11 0x00007ffff7ba3de0 in __morestack () at enter_enclave.S:77
#12 0x00007ffff7bb4976 in do_ecall (fn=-6, ocall_table=0x0, ms=0x604550, trust_thread=0x604f10) at sig_handler.cpp:240
#13 0x00007ffff7bab958 in CEnclave::ecall (this=0x604c10, proc=-6, ocall_table=0x0, ms=0x604550, is_switchless=false) at /root/tee_special/linux-sgx/psw/urts/enclave.cpp:328
#14 0x00007ffff7bab040 in CEnclave::init_uswitchless (this=0x604c10, config=0x7fffffffe200) at /root/tee_special/linux-sgx/psw/urts/enclave.cpp:95
#15 0x00007ffff7bb1c23 in __create_enclave (parser=..., base_addr=0x7ffff5ecf000 "\177ELF\002\001\001", metadata=0x7ffff6118e55, file=..., debug=true, lc=0x607070, prd_css_file=0x0,
enclave_id=0x602210 <global_eid>, misc_attr=0x0, ex_features=2, ex_features_p=0x7fffffffe240) at /root/tee_special/linux-sgx/psw/urts/urts_com.h:473
#16 0x00007ffff7bb21dd in _create_enclave_from_buffer_ex (debug=true, base_addr=0x7ffff5ecf000 "\177ELF\002\001\001", file_size=3397720, file=..., prd_css_file=0x0,
enclave_id=0x602210 <global_eid>, misc_attr=0x0, ex_features=2, ex_features_p=0x7fffffffe240) at /root/tee_special/linux-sgx/psw/urts/urts_com.h:596
#17 0x00007ffff7bb2358 in _create_enclave_ex (debug=true, pfile=7, file=..., prd_css_file=0x0, launch=0x0, launch_updated=0x0, enclave_id=0x602210 <global_eid>, misc_attr=0x0,
ex_features=2, ex_features_p=0x7fffffffe240) at /root/tee_special/linux-sgx/psw/urts/urts_com.h:637
#18 0x00007ffff7bb269e in __sgx_create_enclave_ex (file_name=0x40155f "enclave.signed.so", debug=1, launch_token=0x0, launch_token_updated=0x0, enclave_id=0x602210 <global_eid>,
misc_attr=0x0, ex_features=2, ex_features_p=0x7fffffffe240) at urts.cpp:99
#19 0x00007ffff7bb27e2 in sgx_create_enclave_ex (file_name=0x40155f "enclave.signed.so", debug=1, launch_token=0x0, launch_token_updated=0x0, enclave_id=0x602210 <global_eid>,
misc_attr=0x0, ex_features=2, ex_features_p=0x7fffffffe240) at urts.cpp:134
#20 0x0000000000400f5a in initialize_enclave () at app/app.cpp:136
#21 0x0000000000400fbc in main (argc=1, argv=0x7fffffffe488) at app/app.cpp:167
(gdb)

(gdb) c
Continuing.
[sig_handler sig_handler.cpp:93] signal handler is triggered
[sig_handler sig_handler.cpp:111] exception on ERESUME
[sig_handler sig_handler.cpp:149] NOT enclave signal

Program received signal SIGILL, Illegal instruction.
0x00007ffff799023b in raise () from /lib64/libpthread.so.0
(gdb) bt
#0 0x00007ffff799023b in raise () from /lib64/libpthread.so.0
#1 0x00007ffff7bb451c in sig_handler (signum=4, siginfo=0x7fffffffaf70, priv=0x7fffffffae40) at sig_handler.cpp:155
#2
#3 0x00007ffff7ba3e43 in __morestack () at enter_enclave.S:133
#4 0x00007ffff7bb4976 in do_ecall (fn=-6, ocall_table=0x0, ms=0x604550, trust_thread=0x604f10) at sig_handler.cpp:240
#5 0x00007ffff7bab958 in CEnclave::ecall (this=0x604c10, proc=-6, ocall_table=0x0, ms=0x604550, is_switchless=false) at /root/tee_special/linux-sgx/psw/urts/enclave.cpp:328
#6 0x00007ffff7bab040 in CEnclave::init_uswitchless (this=0x604c10, config=0x7fffffffe200) at /root/tee_special/linux-sgx/psw/urts/enclave.cpp:95
#7 0x00007ffff7bb1c23 in __create_enclave (parser=..., base_addr=0x7ffff5ecf000 "\177ELF\002\001\001", metadata=0x7ffff6118e55, file=..., debug=true, lc=0x607070, prd_css_file=0x0,
enclave_id=0x602210 <global_eid>, misc_attr=0x0, ex_features=2, ex_features_p=0x7fffffffe240) at /root/tee_special/linux-sgx/psw/urts/urts_com.h:473
#8 0x00007ffff7bb21dd in _create_enclave_from_buffer_ex (debug=true, base_addr=0x7ffff5ecf000 "\177ELF\002\001\001", file_size=3397720, file=..., prd_css_file=0x0,
enclave_id=0x602210 <global_eid>, misc_attr=0x0, ex_features=2, ex_features_p=0x7fffffffe240) at /root/tee_special/linux-sgx/psw/urts/urts_com.h:596
#9 0x00007ffff7bb2358 in _create_enclave_ex (debug=true, pfile=7, file=..., prd_css_file=0x0, launch=0x0, launch_updated=0x0, enclave_id=0x602210 <global_eid>, misc_attr=0x0,
ex_features=2, ex_features_p=0x7fffffffe240) at /root/tee_special/linux-sgx/psw/urts/urts_com.h:637
#10 0x00007ffff7bb269e in __sgx_create_enclave_ex (file_name=0x40155f "enclave.signed.so", debug=1, launch_token=0x0, launch_token_updated=0x0, enclave_id=0x602210 <global_eid>,
misc_attr=0x0, ex_features=2, ex_features_p=0x7fffffffe240) at urts.cpp:99
#11 0x00007ffff7bb27e2 in sgx_create_enclave_ex (file_name=0x40155f "enclave.signed.so", debug=1, launch_token=0x0, launch_token_updated=0x0, enclave_id=0x602210 <global_eid>,
misc_attr=0x0, ex_features=2, ex_features_p=0x7fffffffe240) at urts.cpp:134
#12 0x0000000000400f5a in initialize_enclave () at app/app.cpp:136
#13 0x0000000000400fbc in main (argc=1, argv=0x7fffffffe488) at app/app.cpp:167
`

Is there anything wrong? Does intel-sgx-ssl support sgx swichless mode?

Thanks
@weicz11 weicz11 changed the title illegal instruction error with sgx switchless mode illegal instruction error with sgx switchless mode working with intel-sgx-ssl Jun 26, 2019
@tyler-lee
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Hi @weicz11 , I also encountered this error too. How do you fix it?

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@tyler-lee @weicz11