Demonstrate misalignment when (p_vaddr % p_align) != 0

build.sh

#!/bin/bash
CLANG=/x/llvm-upstream/stage1/bin/clang
$CLANG -target aarch64-linux-gnu -fpic -shared libtls.c -fuse-ld=lld -o libtls.so
$CLANG -target aarch64-linux-gnu main.c -ldl -o main -Wl,-rpath,'$ORIGIN'

libtls.c

#include <stdio.h>

__thread char tlsvar1[1] = { 1 };
__thread char tlsvar2[0x100] __attribute__((aligned(0x100)));

void dump(void) {
  printf("&tlsvar1 = %p\n", &tlsvar1);
  printf("&tlsvar2 = %p\n", &tlsvar2);
}

main.c

#include <assert.h>
#include <dlfcn.h>

int main() {
  void* lib = dlopen("libtls.so", RTLD_NOW);
  assert(lib);
  void (*dump)(void) = dlsym(lib, "dump");
  assert(dump);
  dump();
  return 0;
}