src/ldso/loongarch64/tlsdesc.s

   1 .text
   2 .global __tlsdesc_static
   3 .hidden __tlsdesc_static
   4 .type __tlsdesc_static,%function
   5 __tlsdesc_static:
   6         ld.d $a0, $a0, 8
   7         jr $ra
   8 # size_t __tlsdesc_dynamic(size_t *a)
   9 # {
  10 #      struct {size_t modidx,off;} *p = (void*)a[1];
  11 #      size_t *dtv = *(size_t**)(tp - 8);
  12 #      return dtv[p->modidx] + p->off - tp;
  13 # }
  14 .global __tlsdesc_dynamic
  15 .hidden __tlsdesc_dynamic
  16 .type __tlsdesc_dynamic,%function
  17 __tlsdesc_dynamic:
  18         addi.d $sp, $sp, -16
  19         st.d $t1, $sp, 0
  20         st.d $t2, $sp, 8
  21
  22         ld.d $t2, $tp, -8 # t2=dtv
  23
  24         ld.d $a0, $a0, 8  # a0=&{modidx,off}
  25         ld.d $t1, $a0, 8  # t1=off
  26         ld.d $a0, $a0, 0  # a0=modidx
  27         slli.d $a0, $a0, 3  # a0=8*modidx
  28
  29         add.d $a0, $a0, $t2  # a0=dtv+8*modidx
  30         ld.d $a0, $a0, 0  # a0=dtv[modidx]
  31         add.d $a0, $a0, $t1 # a0=dtv[modidx]+off
  32         sub.d $a0, $a0, $tp # a0=dtv[modidx]+off-tp
  33
  34         ld.d $t1, $sp, 0
  35         ld.d $t2, $sp, 8
  36         addi.d $sp, $sp, 16
  37         jr $ra