diff options
Diffstat (limited to 'src')
| -rw-r--r-- | src/ldso/arm/tlsdesc.S | 62 |
1 files changed, 62 insertions, 0 deletions
diff --git a/src/ldso/arm/tlsdesc.S b/src/ldso/arm/tlsdesc.S new file mode 100644 index 00000000..f3d67fce --- /dev/null +++ b/src/ldso/arm/tlsdesc.S @@ -0,0 +1,62 @@ +.syntax unified + +.text +.global __tlsdesc_static +.hidden __tlsdesc_static +.type __tlsdesc_static,%function +__tlsdesc_static: + ldr r0,[r0] + bx lr + +.hidden __tls_get_new + +.global __tlsdesc_dynamic +.hidden __tlsdesc_dynamic +.type __tlsdesc_dynamic,%function +__tlsdesc_dynamic: + push {r2,r3,ip,lr} + ldr r1,[r0] + ldr r2,[r1,#4] // r2 = offset + ldr r1,[r1] // r1 = modid + + ldr r0,1f + add r0,r0,pc + ldr r0,[r0] +2: +#if __ARM_ARCH >= 5 + blx r0 // r0 = tp +#else + mov lr,pc + bx r0 +#endif + ldr r3,[r0,#-4] // r3 = dtv + ldr ip,[r3] // ip = dtv slot count + cmp r1,ip + bhi 3f + ldr ip,[r3,r1,LSL #2] + sub r0,ip,r0 + add r0,r0,r2 // r0 = r3[r1]-r0+r2 +4: +#if __ARM_ARCH >= 5 + pop {r2,r3,ip,pc} +#else + pop {r2,r3,ip,lr} + bx lr +#endif + +3: +#if __ARM_PCS_VFP || !__SOFTFP__ + vpush {d0-d7} +#endif + push {r0-r3} + add r0,sp,#4 + bl __tls_get_new + pop {r1-r3,ip} +#if __ARM_PCS_VFP || !__SOFTFP__ + vpop {d0-d7} +#endif + sub r0,r0,r1 // r0 = retval-tp + b 4b + + .align 2 +1: .word __a_gettp_ptr - 2b |