ubuntu 20.04 installs GCC G++ 6.2 with support for c++ 14

make install

7. Validation

gcc -v

Problems encountered during compilation:

concern1：error: dereferencing pointer to incomplete type ‘struct ucontext’

in a function‘x86_64_fallback_frame_state’center: ./:65:47: incorrect： dereferencing pointer to incomplete type ‘struct ucontext’
sc = (struct sigcontext *) (void *) &uc_->uc_mcontext;

Solution:

struct ucontext * uc_ = context->cfa;
modify to

struct ucontext_t * uc_ = context->cfa;
Recompile make

Issue 2: sanitizer_platform_limits_posix.cc:158:23: Fatal error: sys/: don't have that file or directory

../../.././libsanitizer/sanitizer_common/sanitizer_platform_limits_posix.cc:159:
28: fatal error: sys/: No such file or directory
#include <sys/>
^
compilation terminated.

Solution:

modificationslibsanitizer/sanitizer_common/sanitizer_platform_limits_posix.ccDocumentation:

vim libsanitizer/sanitizer_common/sanitizer_platform_limits_posix.cc
First, comment out the#include <sys/> ：
Next, in line 251, changeunsigned struct_ustat_sz = sizeof(struct ustat); statement
Comment out line 251 and paste the following after a line break:

// Use pre-computed size of struct ustat to avoid <sys/> which
// has been removed from glibc 2.28.
#if defined(__aarch64__) || defined(__s390x__) || defined (__mips64) \
|| defined(__powerpc64__) || defined(__arch64__) || defined(__sparcv9) \
|| defined(__x86_64__)
#define SIZEOF_STRUCT_USTAT 32
#elif defined(__arm__) || defined(__i386__) || defined(__mips__) \
|| defined(__powerpc__) || defined(__s390__)
#define SIZEOF_STRUCT_USTAT 20
#else
#error Unknown size of struct ustat
#endif
unsigned struct_ustat_sz = SIZEOF_STRUCT_USTAT;
Remake

Question 3:
... /... /... /. /libsanitizer/sanitizer_common/sanitizer_stoptheworld_linux_libcdep.cc:270:22: Error: polymerize
Hop 'sigaltstack handler_stack' type is incomplete and can't be defined
   struct sigaltstack handler_stack;
                      ^~~~~~~~~~~~~
Solution:

1. Open libsanitizer/sanitizer_common/sanitizer_linux.h file, comment line 22 of struct sigaltstack.
2. Amend line 31.32:
uptr internal_sigaltstack(const struct sigaltstack* ss,
                          struct sigaltstack* oss);

modify to
uptr internal_sigaltstack(const void* ss, void* oss);

3. Modify libsanitizer/sanitizer_common/sanitizer_linux.cc file line 549, 550
uptr internal_sigaltstack(const struct sigaltstack *ss,
                                struct sigaltstack *oss) {

modify to
uptr internal_sigaltstack(const void *ss, void *oss) {

4.modificationslibsanitizer/sanitizer_common/sanitizer_stoptheworld_linux_libcdep.cc270classifier for objects in rows such as words
struct sigaltstack handler_stack;
modify to
stack_t handler_stack;

5. Modify libsanitizer/tsan/tsan_platform_linux.cc294 line
__res_state *statp = (__res_state*)state;
modify to
struct __res_state *statp = (struct __res_state*)state;
Remake

concern4：sanitizer_common/sanitizer_internal_defs.h:254:72: error: size of array ‘assertion_failed__1142’ is negative
Solution:
Modify the /gcc-6.3.0/configure file.
Remove target-libsanitizer \ from the file, it's about 2,000 lines.
Remake