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/* Copyright (C) 2022 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public License as
published by the Free Software Foundation; either version 2.1 of the
License, or (at your option) any later version.
The GNU C Library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with the GNU C Library. If not, see
<https://www.gnu.org/licenses/>. */
#include <sysdep.h>
#include <jmpbuf-offsets.h>
#include <stap-probe.h>
/* Keep traditional entry points in with sigsetjmp(). */
ENTRY (setjmp)
mov x1, #1
b 1f
END (setjmp)
ENTRY (_setjmp)
mov x1, #0
b 1f
END (_setjmp)
libc_hidden_def (_setjmp)
ENTRY (__sigsetjmp)
1:
stp c19, c20, [c0, #JB_X19<<4]
stp c21, c22, [c0, #JB_X21<<4]
stp c23, c24, [c0, #JB_X23<<4]
stp c25, c26, [c0, #JB_X25<<4]
stp c27, c28, [c0, #JB_X27<<4]
stp c29, c30, [c0, #JB_X29<<4]
/* setjmp probe takes 3 arguments, address of jump buffer
first argument (8@x0), return value second argument (-4@x1),
and target address (8@x30), respectively. */
LIBC_PROBE (setjmp, 3, 8@c0, -4@c1, 8@c30)
stp q8, q9, [c0, #JB_D8<<4]
stp q10, q11, [c0, #JB_D10<<4]
stp q12, q13, [c0, #JB_D12<<4]
stp q14, q15, [c0, #JB_D14<<4]
mov c2, csp
str c2, [c0, #JB_SP<<4]
#if IS_IN (rtld)
/* In ld.so we never save the signal mask */
mov w0, #0
RET
#else
b C_SYMBOL_NAME(__sigjmp_save)
#endif
END (__sigsetjmp)
hidden_def (__sigsetjmp)
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