glibc_override_malloc_init_hook 142 third_party/tcmalloc/chromium/src/libc_override_glibc.h = &glibc_override_malloc_init_hook; glibc_override_malloc_init_hook 131 third_party/tcmalloc/vendor/src/libc_override_glibc.h = &glibc_override_malloc_init_hook;