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.global __mlibcTlsdescStatic
.hidden __mlibcTlsdescStatic
.type __mlibcTlsdescStatic,@function
__mlibcTlsdescStatic:
ldr x0, [x0, #8]
ret
// This function depends on the Tcb layout, since it pulls out the dtv pointer
// out of the thread control block
.global __mlibcTlsdescDynamic
.hidden __mlibcTlsdescDynamic
.type __mlibcTlsdescDynamic,@function
__mlibcTlsdescDynamic:
stp x1, x2, [sp, #-16]!
ldr x0, [x0, #8]
ldp x1, x2, [x0] // tlsIndex, addend
mrs x0, tpidr_el0 // tp
ldr x0, [x0, #-104] // tp->dtvPointers
ldr x0, [x0, x1, lsl 3] // [tlsIndex]
add x0, x0, x2 // + addend
mrs x1, tpidr_el0 // tp
sub x0, x0, x1 // result - tp
ldp x1, x2, [sp], #16
ret
.global pltRelocateStub
pltRelocateStub:
// we need to save / restore all registers than can hold function arguments
// we do not need to save callee-saved registers as they will not be trashed by lazyRelocate
// TODO: save floating point argument registers
stp x0, x1, [sp, #-16]!
// pointer to PLT entry
ldr x1, [sp, #24]
ldr x0, [x16]
sub x1, x1, x0
asr x0, x0, #3
// pointer GOT
sub x0, x16, #8 // &PLTGOT[1]
stp x2, x3, [sp, #-16]!
stp x4, x5, [sp, #-16]!
stp x6, x7, [sp, #-16]!
stp x8, x30, [sp, #-16]!
bl lazyRelocate
mov x9, x0
ldp x8, x30, [sp], #16
ldp x6, x7, [sp], #16
ldp x4, x5, [sp], #16
ldp x2, x1, [sp], #16
ldp x0, x1, [sp], #16
add sp, sp, #16
br x9
.section .note.GNU-stack,"",%progbits
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