libc-top-half/musl/src/setjmp/arm/longjmp.S

   1 .syntax unified
   2 .global _longjmp
   3 .global longjmp
   4 .type _longjmp,%function
   5 .type longjmp,%function
   6 _longjmp:
   7 longjmp:
   8         mov ip,r0
   9         movs r0,r1
  10         moveq r0,#1
  11         ldmia ip!, {v1,v2,v3,v4,v5,v6,sl,fp}
  12         ldmia ip!, {r2,lr}
  13         mov sp,r2
  14
  15         adr r1,1f
  16         ldr r2,1f
  17         ldr r1,[r1,r2]
  18
  19 #if __ARM_ARCH < 8
  20         tst r1,#0x260
  21         beq 3f
  22         // HWCAP_ARM_FPA
  23         tst r1,#0x20
  24         beq 2f
  25         ldc p2, cr4, [ip], #48
  26 #endif
  27 2:      tst r1,#0x40
  28         beq 2f
  29         .fpu vfp
  30         vldmia ip!, {d8-d15}
  31         .fpu softvfp
  32         .eabi_attribute 10, 0
  33         .eabi_attribute 27, 0
  34 #if __ARM_ARCH < 8
  35         // HWCAP_ARM_IWMMXT
  36 2:      tst r1,#0x200
  37         beq 3f
  38         ldcl p1, cr10, [ip], #8
  39         ldcl p1, cr11, [ip], #8
  40         ldcl p1, cr12, [ip], #8
  41         ldcl p1, cr13, [ip], #8
  42         ldcl p1, cr14, [ip], #8
  43         ldcl p1, cr15, [ip], #8
  44 #endif
  45 2:
  46 3:      bx lr
  47
  48 .hidden __hwcap
  49 .align 2
  50 1:      .word __hwcap-1b