stefanberger / libtpms / 1168
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Stefan Berger 
tpm12: Initialize a few variables for x86 gcc -O3

gcc (Ubuntu 5.4.0-6ubuntu1~16.04.12) 5.4.0 20160609

The above gcc on x86 with -O3 reports the following false positives:

 gcc -DHAVE_CONFIG_H -I. -I.. -include tpm_library_conf.h -I../include/libtpms -I../include/libtpms -fstack-protector-strong -DTPM_V12 -DTPM_PCCLIENT -DTPM_VOLATILE_LOAD -DTPM_ENABLE_ACTIVATE -DTPM_AES -DTPM_LIBTPMS_CALLBACKS -DTPM_NV_DISK -DTPM_POSIX -DTPM_NOMAINTENANCE_COMMANDS -O3 -DUSE_OPENSSL_FUNCTIONS_SYMMETRIC=1 -DUSE_OPENSSL_FUNCTIONS_EC=1 -DUSE_OPENSSL_FUNCTIONS_ECDSA=0 -DUSE_OPENSSL_FUNCTIONS_RSA=0 -Wall -Werror -Wreturn-type -Wsign-compare -Wno-self-assign -MT tpm12/libtpms_tpm12_la-tpm_nvram.lo -MD -MP -MF tpm12/.deps/libtpms_tpm12_la-tpm_nvram.Tpo -c tpm12/tpm_nvram.c -o tpm12/libtpms_tpm12_la-tpm_nvram.o
tpm12/tpm_nvram.c: In function ‘TPM_Process_NVReadValue’:
tpm12/tpm_nvram.c:1539:38: error: ‘isGPIO’ may be used uninitialized in this function [-Werror=maybe-uninitialized]
      if ((returnCode == TPM_SUCCESS) && !isGPIO) {
                                      ^
tpm12/tpm_nvram.c: In function ‘TPM_Process_NVWriteValue’:
tpm12/tpm_nvram.c:2323:6: error: ‘isGPIO’ may be used uninitialized in this function [-Werror=maybe-uninitialized]
   if (!isGPIO) {
      ^

gcc -DHAVE_CONFIG_H -I. -I.. -include tpm_library_conf.h -I../include/libtpms -I../include/libtpms -fstack-protector-strong -DTPM_V12 -DTPM_PCCLIENT -DTPM_VOLATILE_LOAD -DTPM_ENABLE_ACTIVATE -DTPM_AES -DTPM_LIBTPMS_CALLBACKS -DTPM_NV_DISK -DTPM_POSIX -DTPM_NOMAINTENANCE_COMMANDS -O3 -DUSE_OPENSSL_FUNCTIONS_SYMMETRIC=1 -DUSE_OPENSSL_FUNCTIONS_EC=1 -DUSE_OPENSSL_FUNCTIONS_ECDSA=0 -DUSE_OPENSSL_FUNCTIONS_RSA=0 -Wall -Werror -Wreturn-type -Wsign-compare -Wno-self-assign -MT tpm12/libtpms_tpm12_la-tpm_process.lo -MD -MP -MF tpm12/.deps/libtpms_tpm12_la-tpm_process.Tpo -c tpm12/tpm_process.c -o tpm12/libtpms_tpm12_la-tpm_process.o
tpm12/tpm_process.c: In function ‘TPM_Process_GetCapabilitySigned’:
tpm12/tpm_process... (continued)

27537 of 36071 relevant lines covered (76.34%)

82052.27 hits per line

Jobs
ID Job ID Ran Files Coverage
2 1168.2 (CONFIG="--with-openssl --prefix=/usr --with-tpm2 --enable-test-coverage" TARGET="install" NPROC="nproc") 0
76.34
 Travis Job 1168.2
Source Files on build 1168
Detailed source file information is not available for this build.