diff options
Diffstat (limited to 'lib/mlibc/options/rtdl/aarch64/runtime.S')
-rw-r--r-- | lib/mlibc/options/rtdl/aarch64/runtime.S | 62 |
1 files changed, 0 insertions, 62 deletions
diff --git a/lib/mlibc/options/rtdl/aarch64/runtime.S b/lib/mlibc/options/rtdl/aarch64/runtime.S deleted file mode 100644 index c3e2cff..0000000 --- a/lib/mlibc/options/rtdl/aarch64/runtime.S +++ /dev/null @@ -1,62 +0,0 @@ - -.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 - |