diff options
Diffstat (limited to 'sysdeps/unix/sysv/linux/mips/makecontext.S')
| -rw-r--r-- | sysdeps/unix/sysv/linux/mips/makecontext.S | 198 |
1 files changed, 0 insertions, 198 deletions
diff --git a/sysdeps/unix/sysv/linux/mips/makecontext.S b/sysdeps/unix/sysv/linux/mips/makecontext.S deleted file mode 100644 index 5c3af04491..0000000000 --- a/sysdeps/unix/sysv/linux/mips/makecontext.S +++ /dev/null @@ -1,198 +0,0 @@ -/* Modify saved 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 makecontext (ucontext_t *ucp, (void *func) (), int argc, ...) */ - - .text - .set nomips16 -LOCALSZ = 0 -ARGSZ = 0 -MASK = 0x00000000 -#ifdef __PIC__ -LOCALSZ = 1 /* save gp */ -#endif -#if _MIPS_SIM != _ABIO32 -ARGSZ = 5 /* save a3-a7 */ -# ifdef __PIC__ -MASK = 0x10000000 -# endif -#endif -FRAMESZ = (((ARGSZ + LOCALSZ) * SZREG) + ALSZ) & ALMASK -GPOFF = FRAMESZ - ((ARGSZ + 1) * SZREG) -#if _MIPS_SIM != _ABIO32 -A3OFF = FRAMESZ - (5 * SZREG) /* callee-allocated */ -A4OFF = FRAMESZ - (4 * SZREG) -A5OFF = FRAMESZ - (3 * SZREG) -A6OFF = FRAMESZ - (2 * SZREG) -A7OFF = FRAMESZ - (1 * SZREG) -NARGREGS = 8 -#else -A3OFF = FRAMESZ + (3 * SZREG) /* caller-allocated */ -NARGREGS = 4 -#endif - -NESTED (__makecontext, FRAMESZ, ra) - .mask MASK, -(ARGSZ * SZREG) - .fmask 0x00000000, 0 - -98: -#ifdef __PIC__ - SETUP_GP -#endif - - PTR_ADDIU sp, -FRAMESZ - cfi_adjust_cfa_offset (FRAMESZ) - -#ifdef __PIC__ - SETUP_GP64_STACK (GPOFF, __makecontext) - SAVE_GP (GPOFF) -#endif - -#ifdef PROF - .set noat - move AT, ra - jal _mcount - .set at -#endif - - /* Store args to be passed. */ - REG_S a3, A3OFF(sp) -#if _MIPS_SIM != _ABIO32 - REG_S a4, A4OFF(sp) - REG_S a5, A5OFF(sp) - REG_S a6, A6OFF(sp) - REG_S a7, A7OFF(sp) -#endif - - /* Store a magic flag. */ - li v1, 1 - REG_S v1, (0 * SZREG + MCONTEXT_GREGS)(a0) /* zero */ - - /* Set up the stack. */ - PTR_L t0, STACK_SP(a0) - PTR_L t2, STACK_SIZE(a0) - PTR_ADDIU t1, sp, A3OFF - PTR_ADDU t0, t2 - and t0, ALMASK - blez a2, 2f /* no arguments */ - - /* Store register arguments. */ - PTR_ADDIU t2, a0, MCONTEXT_GREGS + 4 * SZREG - move t3, zero -0: - addiu t3, 1 - REG_L v1, (t1) - PTR_ADDIU t1, SZREG - REG_S v1, (t2) - PTR_ADDIU t2, SZREG - bgeu t3, a2, 2f /* all done */ - bltu t3, NARGREGS, 0b /* next */ - - /* Make room for stack arguments. */ - PTR_SUBU t2, a2, t3 - PTR_SLL t2, 3 - PTR_SUBU t0, t2 - and t0, ALMASK - - /* Store stack arguments. */ - move t2, t0 -1: - addiu t3, 1 - REG_L v1, (t1) - PTR_ADDIU t1, SZREG - REG_S v1, (t2) - PTR_ADDIU t2, SZREG - bltu t3, a2, 1b /* next */ - -2: -#if _MIPS_SIM == _ABIO32 - /* Make room for a0-a3 storage. */ - PTR_ADDIU t0, -(NARGSAVE * SZREG) -#endif - PTR_L v1, UCONTEXT_LINK(a0) -#ifdef __PIC__ - PTR_ADDIU t9, 99f - 98b -#else - PTR_LA t9, 99f -#endif - REG_S t0, (29 * SZREG + MCONTEXT_GREGS)(a0) /* sp */ - REG_S v1, (16 * SZREG + MCONTEXT_GREGS)(a0) /* s0 */ -#ifdef __PIC__ - REG_S gp, (17 * SZREG + MCONTEXT_GREGS)(a0) /* s1 */ -#endif - REG_S t9, (31 * SZREG + MCONTEXT_GREGS)(a0) /* ra */ - REG_S a1, MCONTEXT_PC(a0) - -#ifdef __PIC__ - RESTORE_GP64_STACK - PTR_ADDIU sp, FRAMESZ - cfi_adjust_cfa_offset (-FRAMESZ) -#endif - jr ra - - /* We need to terminate the FDE to stop unwinding if backtrace was - called within a context created by makecontext. */ - cfi_endproc - nop - -99: -#ifdef __PIC__ - move gp, s1 -#endif - move a0, zero - beqz s0, 0f - - /* setcontext (ucp) */ - move a0, s0 -#ifdef __PIC__ - PTR_LA t9, JUMPTARGET (__setcontext) - jalr t9 -# if _MIPS_SIM == _ABIO32 - move gp, s1 -# endif -#else - jal JUMPTARGET (__setcontext) -#endif - move a0, v0 - -0: - /* exit (a0) */ -#ifdef __PIC__ - PTR_LA t9, HIDDEN_JUMPTARGET (exit) - jalr t9 -#else - jal HIDDEN_JUMPTARGET (exit) -#endif - - /* You don't exist, you won't feel anything. */ -1: - lb zero, (zero) - b 1b - - cfi_startproc -PSEUDO_END (__makecontext) - -weak_alias (__makecontext, makecontext) |