| setjmp.S (217106) | setjmp.S (227023) |
|---|---|
| 1/*- 2 * Copyright (c) 1990 The Regents of the University of California. 3 * All rights reserved. 4 * 5 * This code is derived from software contributed to Berkeley by 6 * William Jolitz. 7 * 8 * Redistribution and use in source and binary forms, with or without --- 20 unchanged lines hidden (view full) --- 29 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 30 * SUCH DAMAGE. 31 */ 32 33#if defined(LIBC_SCCS) && !defined(lint) 34 .asciz "@(#)setjmp.s 5.1 (Berkeley) 4/23/90" 35#endif /* LIBC_SCCS and not lint */ 36#include <machine/asm.h> | 1/*- 2 * Copyright (c) 1990 The Regents of the University of California. 3 * All rights reserved. 4 * 5 * This code is derived from software contributed to Berkeley by 6 * William Jolitz. 7 * 8 * Redistribution and use in source and binary forms, with or without --- 20 unchanged lines hidden (view full) --- 29 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 30 * SUCH DAMAGE. 31 */ 32 33#if defined(LIBC_SCCS) && !defined(lint) 34 .asciz "@(#)setjmp.s 5.1 (Berkeley) 4/23/90" 35#endif /* LIBC_SCCS and not lint */ 36#include <machine/asm.h> |
| 37__FBSDID("$FreeBSD: head/lib/libc/amd64/gen/setjmp.S 217106 2011-01-07 16:08:40Z kib $"); | 37__FBSDID("$FreeBSD: head/lib/libc/amd64/gen/setjmp.S 227023 2011-11-02 18:06:22Z kib $"); |
| 38 39/* 40 * C library -- _setjmp, _longjmp 41 * 42 * longjmp(a,v) 43 * will generate a "return(v)" from the last call to 44 * setjmp(a) 45 * by restoring registers from the environment 'a'. 46 * The previous signal state is restored. 47 */ 48 49#include "SYS.h" 50 51ENTRY(setjmp) 52 pushq %rdi 53 movq %rdi,%rcx 54 movq $1,%rdi /* SIG_BLOCK */ 55 movq $0,%rsi /* (sigset_t*)set */ 56 leaq 72(%rcx),%rdx /* 9,10; (sigset_t*)oset */ | 38 39/* 40 * C library -- _setjmp, _longjmp 41 * 42 * longjmp(a,v) 43 * will generate a "return(v)" from the last call to 44 * setjmp(a) 45 * by restoring registers from the environment 'a'. 46 * The previous signal state is restored. 47 */ 48 49#include "SYS.h" 50 51ENTRY(setjmp) 52 pushq %rdi 53 movq %rdi,%rcx 54 movq $1,%rdi /* SIG_BLOCK */ 55 movq $0,%rsi /* (sigset_t*)set */ 56 leaq 72(%rcx),%rdx /* 9,10; (sigset_t*)oset */ |
| 57 /* stack is 16-byte aligned */ |
|
| 57 call PIC_PLT(CNAME(_sigprocmask)) 58 popq %rdi 59 movq %rdi,%rcx 60 movq 0(%rsp),%rdx /* retval */ 61 movq %rdx, 0(%rcx) /* 0; retval */ 62 movq %rbx, 8(%rcx) /* 1; rbx */ 63 movq %rsp,16(%rcx) /* 2; rsp */ 64 movq %rbp,24(%rcx) /* 3; rbp */ --- 11 unchanged lines hidden (view full) --- 76 .set CNAME(longjmp),CNAME(__longjmp) 77ENTRY(__longjmp) 78 pushq %rdi 79 pushq %rsi 80 movq %rdi,%rdx 81 movq $3,%rdi /* SIG_SETMASK */ 82 leaq 72(%rdx),%rsi /* (sigset_t*)set */ 83 movq $0,%rdx /* (sigset_t*)oset */ | 58 call PIC_PLT(CNAME(_sigprocmask)) 59 popq %rdi 60 movq %rdi,%rcx 61 movq 0(%rsp),%rdx /* retval */ 62 movq %rdx, 0(%rcx) /* 0; retval */ 63 movq %rbx, 8(%rcx) /* 1; rbx */ 64 movq %rsp,16(%rcx) /* 2; rsp */ 65 movq %rbp,24(%rcx) /* 3; rbp */ --- 11 unchanged lines hidden (view full) --- 77 .set CNAME(longjmp),CNAME(__longjmp) 78ENTRY(__longjmp) 79 pushq %rdi 80 pushq %rsi 81 movq %rdi,%rdx 82 movq $3,%rdi /* SIG_SETMASK */ 83 leaq 72(%rdx),%rsi /* (sigset_t*)set */ 84 movq $0,%rdx /* (sigset_t*)oset */ |
| 85 subq $0x8,%rsp /* make the stack 16-byte aligned */ |
|
| 84 call PIC_PLT(CNAME(_sigprocmask)) | 86 call PIC_PLT(CNAME(_sigprocmask)) |
| 87 addq $0x8,%rsp |
|
| 85 popq %rsi 86 popq %rdi /* jmpbuf */ 87 movq %rdi,%rdx 88 /* Restore the mxcsr, but leave exception flags intact. */ 89 stmxcsr -4(%rsp) 90 movl 68(%rdx),%eax 91 andl $0xffffffc0,%eax 92 movl -4(%rsp),%edi --- 22 unchanged lines hidden --- | 88 popq %rsi 89 popq %rdi /* jmpbuf */ 90 movq %rdi,%rdx 91 /* Restore the mxcsr, but leave exception flags intact. */ 92 stmxcsr -4(%rsp) 93 movl 68(%rdx),%eax 94 andl $0xffffffc0,%eax 95 movl -4(%rsp),%edi --- 22 unchanged lines hidden --- |