objdump -d -r -S -C ./src/common/CMakeFiles/common-common-objs.dir/mempool.cc.o

adjust_count.txt

void mempool::pool_t::adjust_count(ssize_t items, ssize_t bytes)
{
 530:   41 55                   push   %r13
 532:   49 89 f5                mov    %rsi,%r13
 535:   41 54                   push   %r12
 537:   49 89 d4                mov    %rdx,%r12
 53a:   55                      push   %rbp
 53b:   48 89 fd                mov    %rdi,%rbp
 53e:   53                      push   %rbx
 53f:   48 83 ec 08             sub    $0x8,%rsp
  thread_shard_index = (thread_shard_index == num_shards) ? pick_a_shard_int() : thread_shard_index;
 543:   48 8d 3d 00 00 00 00    lea    0x0(%rip),%rdi        # 54a <mempool::pool_t::adjust_count(long, long)+0x1a>
                        546: R_X86_64_TLSLD     thread_shard_index-0x4
 54a:   e8 00 00 00 00          call   54f <mempool::pool_t::adjust_count(long, long)+0x1f>
                        54b: R_X86_64_PLT32     __tls_get_addr-0x4
 54f:   48 8b 98 00 00 00 00    mov    0x0(%rax),%rbx
                        552: R_X86_64_DTPOFF32  thread_shard_index
 556:   48 83 fb 20             cmp    $0x20,%rbx
 55a:   75 17                   jne    573 <mempool::pool_t::adjust_count(long, long)+0x43>
  void adjust_count(ssize_t items, ssize_t bytes);

  static size_t pick_a_shard_int() {
    // Dirt cheap, see:
    //   https://fossies.org/dox/glibc-2.32/pthread__self_8c_source.html
    size_t me = (size_t)pthread_self();
 55c:   e8 00 00 00 00          call   561 <mempool::pool_t::adjust_count(long, long)+0x31>
                        55d: R_X86_64_PLT32     pthread_self-0x4
    size_t i = (me >> CEPH_PAGE_SHIFT) & ((1 << num_shard_bits) - 1);
 561:   48 8b 15 00 00 00 00    mov    0x0(%rip),%rdx        # 568 <mempool::pool_t::adjust_count(long, long)+0x38>
                        564: R_X86_64_REX_GOTPCRELX     ceph::_page_shift-0x4
 568:   8b 0a                   mov    (%rdx),%ecx
 56a:   48 d3 e8                shr    %cl,%rax
 56d:   83 e0 1f                and    $0x1f,%eax
 570:   48 89 c3                mov    %rax,%rbx
 573:   48 8d 3d 00 00 00 00    lea    0x0(%rip),%rdi        # 57a <mempool::pool_t::adjust_count(long, long)+0x4a>
                        576: R_X86_64_TLSLD     thread_shard_index-0x4
 57a:   e8 00 00 00 00          call   57f <mempool::pool_t::adjust_count(long, long)+0x4f>
                        57b: R_X86_64_PLT32     __tls_get_addr-0x4
 57f:   48 89 98 00 00 00 00    mov    %rbx,0x0(%rax)
                        582: R_X86_64_DTPOFF32  thread_shard_index
      { return __atomic_add_fetch(&_M_i, __i, int(memory_order_seq_cst)); }
 586:   48 c1 e3 07             shl    $0x7,%rbx
 58a:   48 01 eb                add    %rbp,%rbx
 58d:   f0 4c 01 6b 08          lock add %r13,0x8(%rbx)
 592:   48 8b 80 00 00 00 00    mov    0x0(%rax),%rax
                        595: R_X86_64_DTPOFF32  thread_shard_index
 599:   48 c1 e0 07             shl    $0x7,%rax
 59d:   48 01 c5                add    %rax,%rbp
 5a0:   f0 4c 01 65 00          lock add %r12,0x0(%rbp)
  shard[thread_shard_index].items += items;
  shard[thread_shard_index].bytes += bytes;
}
 5a5:   48 83 c4 08             add    $0x8,%rsp
 5a9:   5b                      pop    %rbx
 5aa:   5d                      pop    %rbp
 5ab:   41 5c                   pop    %r12
 5ad:   41 5d                   pop    %r13
 5af:   c3                      ret

gistfile1.txt

From GDB

(gdb) disass 0xe40ae0
Dump of assembler code for function mempool::pool_t::adjust_count(long, long):
   0x0000000000e40ae0 <+0>:	push   %r13
   0x0000000000e40ae2 <+2>:	mov    %rsi,%r13
   0x0000000000e40ae5 <+5>:	push   %r12
   0x0000000000e40ae7 <+7>:	mov    %rdx,%r12
   0x0000000000e40aea <+10>:	push   %rbp
   0x0000000000e40aeb <+11>:	mov    %rdi,%rbp
   0x0000000000e40aee <+14>:	push   %rbx
   0x0000000000e40aef <+15>:	sub    $0x8,%rsp
   0x0000000000e40af3 <+19>:	data16 data16 data16 mov %fs:0x0,%rax
   0x0000000000e40aff <+31>:	mov    -0x2c70(%rax),%rbx
   0x0000000000e40b06 <+38>:	cmp    $0x20,%rbx
   0x0000000000e40b0a <+42>:	jne    0xe40b23 <mempool::pool_t::adjust_count(long, long)+67>
   0x0000000000e40b0c <+44>:	callq  0x5e76f0 <pthread_self@plt>
   0x0000000000e40b11 <+49>:	lea    0xd71a18(%rip),%rdx        # 0x1bb2530 <_ZN4ceph11_page_shiftE>
   0x0000000000e40b18 <+56>:	mov    (%rdx),%ecx
   0x0000000000e40b1a <+58>:	shr    %cl,%rax
   0x0000000000e40b1d <+61>:	and    $0x1f,%eax
   0x0000000000e40b20 <+64>:	mov    %rax,%rbx
   0x0000000000e40b23 <+67>:	data16 data16 data16 mov %fs:0x0,%rax
   0x0000000000e40b2f <+79>:	mov    %rbx,-0x2c70(%rax)
   0x0000000000e40b36 <+86>:	shl    $0x7,%rbx
   0x0000000000e40b3a <+90>:	add    %rbp,%rbx
   0x0000000000e40b3d <+93>:	lock add %r13,0x8(%rbx)
   0x0000000000e40b42 <+98>:	mov    -0x2c70(%rax),%rax
   0x0000000000e40b49 <+105>:	shl    $0x7,%rax
   0x0000000000e40b4d <+109>:	add    %rax,%rbp
   0x0000000000e40b50 <+112>:	lock add %r12,0x0(%rbp)
   0x0000000000e40b55 <+117>:	add    $0x8,%rsp
   0x0000000000e40b59 <+121>:	pop    %rbx
   0x0000000000e40b5a <+122>:	pop    %rbp
   0x0000000000e40b5b <+123>:	pop    %r12
   0x0000000000e40b5d <+125>:	pop    %r13
   0x0000000000e40b5f <+127>:	retq   
End of assembler dump.