runevp.c:
// gcc runevp.c -o runevp
#include <stdio.h>
#include <unistd.h>

int main() {
    int i;
    for (i=0; i < 5; i++) {
        if(fork()==0) {
            execvp("true", NULL);
        }
    }
    return 0;
}

auditlib.c:
// gcc -Wall -fPIC -shared -o auditlib.so auditlib.c
#include <link.h>
#include <stdio.h>
typedef long int Lmid_t;
unsigned int la_version(unsigned int version) { return version; }
unsigned int la_objopen(struct link_map *map, Lmid_t lmid, uintptr_t *cookie) { return 3; }
uintptr_t la_symbind64(Elf64_Sym *sym, unsigned int ndx, uintptr_t *refcook, uintptr_t *defcook, unsigned int *flags, const char *symname) {
    if (strcmp(symname, "execvp") == 0) {
        printf("symbol binding for '%s'\n", symname);
    }
    return sym->st_value;
}

Any glibc release except glibc 2.35 on ARM: Symbol binding occurs repeatedly (LD_BIND_NOT)
$ LD_AUDIT=/path/to/auditlib.so LD_BIND_NOT=1 ./runevp
symbol binding for 'execvp'
symbol binding for 'execvp'
symbol binding for 'execvp'
symbol binding for 'execvp'
symbol binding for 'execvp'

glibc 2.35 on ARM: Symbol binding occurs once (ignores LD_BIND_NOT)
$ LD_AUDIT=/path/to/auditlib.so LD_BIND_NOT=1 ./runevp
symbol binding for 'execvp'