diff options
Diffstat (limited to 'sysdeps/unix/sysv/linux/mips/setcontext.S')
| -rw-r--r-- | sysdeps/unix/sysv/linux/mips/setcontext.S | 196 |
1 files changed, 0 insertions, 196 deletions
diff --git a/sysdeps/unix/sysv/linux/mips/setcontext.S b/sysdeps/unix/sysv/linux/mips/setcontext.S deleted file mode 100644 index 4e363d98d0..0000000000 --- a/sysdeps/unix/sysv/linux/mips/setcontext.S +++ /dev/null @@ -1,196 +0,0 @@ -/* Set current context. - Copyright (C) 2009-2017 Free Software Foundation, Inc. - This file is part of the GNU C Library. - Contributed by Maciej W. Rozycki <macro@codesourcery.com>. - - 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 - <http://www.gnu.org/licenses/>. */ - -#include <sysdep.h> -#include <sys/asm.h> -#include <sys/fpregdef.h> -#include <sys/regdef.h> - -#include "ucontext_i.h" - -/* int setcontext (const ucontext_t *ucp) */ - - .text - .set nomips16 -LOCALSZ = 0 -ARGSZ = 0 -MASK = 0x00000000 -#ifdef __PIC__ -LOCALSZ = 1 /* save gp */ -#endif -#if _MIPS_SIM != _ABIO32 -ARGSZ = 1 /* save a0 */ -# ifdef __PIC__ -MASK = 0x10000000 -# endif -#endif -FRAMESZ = (((ARGSZ + LOCALSZ) * SZREG) + ALSZ) & ALMASK -GPOFF = FRAMESZ - ((ARGSZ + 1) * SZREG) -#if _MIPS_SIM != _ABIO32 -A0OFF = FRAMESZ - (1 * SZREG) /* callee-allocated */ -#else -A0OFF = FRAMESZ + (0 * SZREG) /* caller-allocated */ -#endif - -NESTED (__setcontext, FRAMESZ, ra) - .mask MASK, -(ARGSZ * SZREG) - .fmask 0x00000000, 0 - -#ifdef __PIC__ - SETUP_GP -#endif - - PTR_ADDIU sp, -FRAMESZ - cfi_adjust_cfa_offset (FRAMESZ) - -#ifdef __PIC__ - SETUP_GP64_STACK (GPOFF, __setcontext) - SAVE_GP (GPOFF) -#endif - -#ifdef PROF - .set noat - move AT, ra - jal _mcount - .set at -#endif - - /* Check for the magic flag. */ - li v0, 1 - REG_L v1, (0 * SZREG + MCONTEXT_GREGS)(a0) /* zero */ - bne v0, v1, 98f - - REG_S a0, A0OFF(sp) - -/* rt_sigprocmask (SIG_SETMASK, &ucp->uc_sigmask, NULL, _NSIG8) */ - li a3, _NSIG8 - move a2, zero - PTR_ADDU a1, a0, UCONTEXT_SIGMASK - li a0, SIG_SETMASK - - li v0, SYS_ify (rt_sigprocmask) - syscall - bnez a3, 99f - - REG_L v0, A0OFF(sp) - -#ifdef __mips_hard_float -# if _MIPS_SIM == _ABI64 - l.d fs0, (24 * SZREG + MCONTEXT_FPREGS)(v0) - l.d fs1, (25 * SZREG + MCONTEXT_FPREGS)(v0) - l.d fs2, (26 * SZREG + MCONTEXT_FPREGS)(v0) - l.d fs3, (27 * SZREG + MCONTEXT_FPREGS)(v0) - l.d fs4, (28 * SZREG + MCONTEXT_FPREGS)(v0) - l.d fs5, (29 * SZREG + MCONTEXT_FPREGS)(v0) - l.d fs6, (30 * SZREG + MCONTEXT_FPREGS)(v0) - l.d fs7, (31 * SZREG + MCONTEXT_FPREGS)(v0) - -# else /* _MIPS_SIM != _ABI64 */ - l.d fs0, (20 * SZREG + MCONTEXT_FPREGS)(v0) - l.d fs1, (22 * SZREG + MCONTEXT_FPREGS)(v0) - l.d fs2, (24 * SZREG + MCONTEXT_FPREGS)(v0) - l.d fs3, (26 * SZREG + MCONTEXT_FPREGS)(v0) - l.d fs4, (28 * SZREG + MCONTEXT_FPREGS)(v0) - l.d fs5, (30 * SZREG + MCONTEXT_FPREGS)(v0) - -# endif /* _MIPS_SIM != _ABI64 */ - - lw v1, MCONTEXT_FPC_CSR(v0) - ctc1 v1, fcr31 -#endif /* __mips_hard_float */ - - /* Note the contents of argument registers will be random - unless makecontext() has been called. */ - REG_L a0, (4 * SZREG + MCONTEXT_GREGS)(v0) - REG_L a1, (5 * SZREG + MCONTEXT_GREGS)(v0) - REG_L a2, (6 * SZREG + MCONTEXT_GREGS)(v0) - REG_L a3, (7 * SZREG + MCONTEXT_GREGS)(v0) -#if _MIPS_SIM != _ABIO32 - REG_L a4, (8 * SZREG + MCONTEXT_GREGS)(v0) - REG_L a5, (9 * SZREG + MCONTEXT_GREGS)(v0) - REG_L a6, (10 * SZREG + MCONTEXT_GREGS)(v0) - REG_L a7, (11 * SZREG + MCONTEXT_GREGS)(v0) -#endif - - REG_L s0, (16 * SZREG + MCONTEXT_GREGS)(v0) - REG_L s1, (17 * SZREG + MCONTEXT_GREGS)(v0) - REG_L s2, (18 * SZREG + MCONTEXT_GREGS)(v0) - REG_L s3, (19 * SZREG + MCONTEXT_GREGS)(v0) - REG_L s4, (20 * SZREG + MCONTEXT_GREGS)(v0) - REG_L s5, (21 * SZREG + MCONTEXT_GREGS)(v0) - REG_L s6, (22 * SZREG + MCONTEXT_GREGS)(v0) - REG_L s7, (23 * SZREG + MCONTEXT_GREGS)(v0) -#if ! defined (__PIC__) || _MIPS_SIM != _ABIO32 - REG_L gp, (28 * SZREG + MCONTEXT_GREGS)(v0) -#endif - REG_L sp, (29 * SZREG + MCONTEXT_GREGS)(v0) - REG_L fp, (30 * SZREG + MCONTEXT_GREGS)(v0) - REG_L ra, (31 * SZREG + MCONTEXT_GREGS)(v0) - REG_L t9, MCONTEXT_PC(v0) - - move v0, zero - jr t9 - -98: - /* This is a context obtained from a signal handler. - Perform a full restore by pushing the context - passed onto a simulated signal frame on the stack - and call the signal return syscall as if a signal - handler exited normally. */ - PTR_ADDIU sp, -((RT_SIGFRAME_SIZE + ALSZ) & ALMASK) - cfi_adjust_cfa_offset ((RT_SIGFRAME_SIZE + ALSZ) & ALMASK) - - /* Only ucontext is referred to from rt_sigreturn, - copy it. */ - PTR_ADDIU t1, sp, RT_SIGFRAME_UCONTEXT - li t3, ((UCONTEXT_SIZE + SZREG - 1) / SZREG) - 1 -0: - REG_L t2, (a0) - PTR_ADDIU a0, SZREG - REG_S t2, (t1) - PTR_ADDIU t1, SZREG - .set noreorder - bgtz t3, 0b - addiu t3, -1 - .set reorder - -/* rt_sigreturn () -- no arguments, sp points to struct rt_sigframe. */ - li v0, SYS_ify (rt_sigreturn) - syscall - - /* Restore the stack and fall through to the error - path. Successful rt_sigreturn never returns to - its calling place. */ - PTR_ADDIU sp, ((RT_SIGFRAME_SIZE + ALSZ) & ALMASK) - cfi_adjust_cfa_offset (-((RT_SIGFRAME_SIZE + ALSZ) & ALMASK)) -99: -#ifdef __PIC__ - PTR_LA t9, JUMPTARGET (__syscall_error) - RESTORE_GP64_STACK - PTR_ADDIU sp, FRAMESZ - cfi_adjust_cfa_offset (-FRAMESZ) - jr t9 - -#else /* ! __PIC__ */ - - j JUMPTARGET (__syscall_error) -#endif /* ! __PIC__ */ -PSEUDO_END (__setcontext) - -weak_alias (__setcontext, setcontext) |