003 File Manager
Current Path:
/usr/src/lib/libc/amd64/gen
usr
/
src
/
lib
/
libc
/
amd64
/
gen
/
📁
..
📄
Makefile.inc
(286 B)
📄
_set_tp.c
(1.53 KB)
📄
_setjmp.S
(3.05 KB)
📄
fabs.S
(1.61 KB)
📄
flt_rounds.c
(476 B)
📄
fpgetmask.c
(123 B)
📄
fpgetprec.c
(121 B)
📄
fpgetround.c
(122 B)
📄
fpgetsticky.c
(127 B)
📄
fpsetmask.c
(135 B)
📄
fpsetprec.c
(131 B)
📄
fpsetround.c
(131 B)
📄
infinity.c
(276 B)
📄
makecontext.c
(3.53 KB)
📄
rfork_thread.S
(2.57 KB)
📄
setjmp.S
(3.56 KB)
📄
signalcontext.c
(3.48 KB)
📄
sigsetjmp.S
(3.72 KB)
Editing: setjmp.S
/*- * Copyright (c) 1990 The Regents of the University of California. * All rights reserved. * * This code is derived from software contributed to Berkeley by * William Jolitz. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. Neither the name of the University nor the names of its contributors * may be used to endorse or promote products derived from this software * without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. */ #if defined(LIBC_SCCS) && !defined(lint) .asciz "@(#)setjmp.s 5.1 (Berkeley) 4/23/90" #endif /* LIBC_SCCS and not lint */ #include <machine/asm.h> __FBSDID("$FreeBSD$"); /* * C library -- _setjmp, _longjmp * * longjmp(a,v) * will generate a "return(v)" from the last call to * setjmp(a) * by restoring registers from the environment 'a'. * The previous signal state is restored. */ #include "SYS.h" ENTRY(setjmp) pushq %rdi movq %rdi,%rcx movq $1,%rdi /* SIG_BLOCK */ movq $0,%rsi /* (sigset_t*)set */ leaq 72(%rcx),%rdx /* 9,10; (sigset_t*)oset */ /* stack is 16-byte aligned */ call __libc_sigprocmask popq %rdi movq %rdi,%rcx movq 0(%rsp),%rdx /* retval */ movq %rdx, 0(%rcx) /* 0; retval */ movq %rbx, 8(%rcx) /* 1; rbx */ movq %rsp,16(%rcx) /* 2; rsp */ movq %rbp,24(%rcx) /* 3; rbp */ movq %r12,32(%rcx) /* 4; r12 */ movq %r13,40(%rcx) /* 5; r13 */ movq %r14,48(%rcx) /* 6; r14 */ movq %r15,56(%rcx) /* 7; r15 */ fnstcw 64(%rcx) /* 8; fpu cw */ stmxcsr 68(%rcx) /* and mxcsr */ xorq %rax,%rax ret END(setjmp) WEAK_REFERENCE(__longjmp, longjmp) ENTRY(__longjmp) pushq %rdi pushq %rsi movq %rdi,%rdx movq $3,%rdi /* SIG_SETMASK */ leaq 72(%rdx),%rsi /* (sigset_t*)set */ movq $0,%rdx /* (sigset_t*)oset */ subq $0x8,%rsp /* make the stack 16-byte aligned */ call __libc_sigprocmask addq $0x8,%rsp popq %rsi popq %rdi /* jmpbuf */ movq %rdi,%rdx /* Restore the mxcsr, but leave exception flags intact. */ stmxcsr -4(%rsp) movl 68(%rdx),%eax andl $0xffffffc0,%eax movl -4(%rsp),%edi andl $0x3f,%edi xorl %eax,%edi movl %edi,-4(%rsp) ldmxcsr -4(%rsp) movq %rsi,%rax /* retval */ movq 0(%rdx),%rcx movq 8(%rdx),%rbx movq 16(%rdx),%rsp movq 24(%rdx),%rbp movq 32(%rdx),%r12 movq 40(%rdx),%r13 movq 48(%rdx),%r14 movq 56(%rdx),%r15 fldcw 64(%rdx) testq %rax,%rax jnz 1f incq %rax 1: movq %rcx,0(%rsp) ret END(__longjmp) .section .note.GNU-stack,"",%progbits
Upload File
Create Folder