Why does it complain Missing separate debuginfos about my c++ with gdb?

Question

My OS: CentOS Linux release 7.9.2009 (Core)

I am debugging a c++ program with:

gdb demo_test

But I got an error:

Breakpoint 1, Log (level=2, msg=0x7ffff79df035 "[%s]:default model:%s") at ./api/test/test.cpp:16
16      va_start(ap, msg);
Missing separate debuginfos, use: debuginfo-install glibc-2.17-324.el7_9.x86_64 libgcc-4.8.5-44.el7.x86_64 libstdc++-4.8.5-44.el7.x86_64

Then I did:

yum install yum-utils
Loaded plugins: langpacks, product-id, search-disabled-repos
Package yum-utils-1.1.31-54.el7_8.noarch already installed and latest version
Nothing to do

Then I did:

# debuginfo-install glibc
Loaded plugins: langpacks, product-id
Could not find debuginfo for main pkg: glibc-2.17-324.el7_9.x86_64
Could not find debuginfo pkg for dependency package nss-softokn-freebl-3.53.1-6.el7_9.x86_64
No debuginfo packages available to install

This doesn't fix the issue. I also tried to remove the -02 flag from the g++:

g++ -g -Wall  -O2  ./api/test/test.cpp  ./${NAME}.so -o demo_test $(CINCLUDE)  $(CLIB)

But it doesn't help either. How can I possibly fix the issue? Really thanks in advance.