cpython/Python/asm_trampoline.S
Petr Viktorin b477e21d5c
[3.14] gh-128605: Revert "Add branch protections for x86_64 in asm_tr…ampoline.S (#128606) (#135077)" (GH-135175)
This reverts commit 899cca6dbf76bf3e06a99f60a5f996ad6ba0761f,
which broke buildbots.
2025-06-06 13:55:26 +02:00

37 lines
913 B
ArmAsm

.text
.globl _Py_trampoline_func_start
# The following assembly is equivalent to:
# PyObject *
# trampoline(PyThreadState *ts, _PyInterpreterFrame *f,
# int throwflag, py_evaluator evaluator)
# {
# return evaluator(ts, f, throwflag);
# }
_Py_trampoline_func_start:
#ifdef __x86_64__
sub $8, %rsp
call *%rcx
add $8, %rsp
ret
#endif // __x86_64__
#if defined(__aarch64__) && defined(__AARCH64EL__) && !defined(__ILP32__)
// ARM64 little endian, 64bit ABI
// generate with aarch64-linux-gnu-gcc 12.1
stp x29, x30, [sp, -16]!
mov x29, sp
blr x3
ldp x29, x30, [sp], 16
ret
#endif
#ifdef __riscv
addi sp,sp,-16
sd ra,8(sp)
jalr a3
ld ra,8(sp)
addi sp,sp,16
jr ra
#endif
.globl _Py_trampoline_func_end
_Py_trampoline_func_end:
.section .note.GNU-stack,"",@progbits