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Update for AMD64 contexts. Note that this still has some x87-style FPU

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instructions here, these may need to be updated for SSE.
(Repocopied from i386/gen)
This commit is contained in:
Peter Wemm 2003-04-30 18:09:33 +00:00
parent 96f94e7d64
commit 1482008e2b
3 changed files with 112 additions and 105 deletions
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48
lib/libc/amd64/gen/_setjmp.S
View File

@ -51,33 +51,37 @@ __FBSDID("$FreeBSD$");
*/
ENTRY(_setjmp)
movl 4(%esp),%eax
movl 0(%esp),%edx
movl %edx, 0(%eax) /* rta */
movl %ebx, 4(%eax)
movl %esp, 8(%eax)
movl %ebp,12(%eax)
movl %esi,16(%eax)
movl %edi,20(%eax)
fnstcw 24(%eax)
xorl %eax,%eax
movq %rdi,%rax
movq 0(%rsp),%rdx /* retval */
movq %rdx, 0(%rax) /* retval */
movq %rbx, 8(%rax)
movq %rsp,16(%rax)
movq %rbp,24(%rax)
movq %r12,32(%rax)
movq %r13,40(%rax)
movq %r14,48(%rax)
movq %r15,56(%rax)
fnstcw 64(%rax)
xorq %rax,%rax
ret
.weak CNAME(_longjmp)
.set CNAME(_longjmp),CNAME(___longjmp)
ENTRY(___longjmp)
movl 4(%esp),%edx
movl 8(%esp),%eax
movl 0(%edx),%ecx
movl 4(%edx),%ebx
movl 8(%edx),%esp
movl 12(%edx),%ebp
movl 16(%edx),%esi
movl 20(%edx),%edi
movq %rdi,%rdx
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
fninit
fldcw 24(%edx)
testl %eax,%eax
fldcw 64(%rdx)
testq %rax,%rax
jnz 1f
incl %eax
1: movl %ecx,0(%esp)
incq %rax
1: movq %rcx,0(%rsp)
ret

78
lib/libc/amd64/gen/setjmp.S
View File

@ -53,51 +53,53 @@ __FBSDID("$FreeBSD$");
#include "SYS.h"
ENTRY(setjmp)
movl 4(%esp),%ecx
PIC_PROLOGUE
leal 28(%ecx), %eax
pushl %eax /* (sigset_t*)oset */
pushl $0 /* (sigset_t*)set */
pushl $1 /* SIG_BLOCK */
pushq %rdi
movq %rdi,%rcx
leaq 72(%rcx),%rdi /* (sigset_t*)oset */
movq $0,%rsi /* (sigset_t*)set */
movq $1,%rdx /* SIG_BLOCK */
call PIC_PLT(CNAME(_sigprocmask))
addl $12,%esp
PIC_EPILOGUE
movl 4(%esp),%ecx
movl 0(%esp),%edx
movl %edx, 0(%ecx)
movl %ebx, 4(%ecx)
movl %esp, 8(%ecx)
movl %ebp,12(%ecx)
movl %esi,16(%ecx)
movl %edi,20(%ecx)
fnstcw 24(%ecx)
xorl %eax,%eax
popq %rdi
movq %rdi,%rcx
movq 0(%rsp),%rdx /* retval */
movq %rdx, 0(%rcx) /* retval */
movq %rbx, 8(%rcx)
movq %rsp,16(%rcx)
movq %rbp,24(%rcx)
movq %r12,32(%rcx)
movq %r13,40(%rcx)
movq %r14,48(%rcx)
movq %r15,56(%rcx)
fnstcw 64(%rcx)
xorq %rax,%rax
ret
.weak CNAME(longjmp)
.set CNAME(longjmp),CNAME(__longjmp)
ENTRY(__longjmp)
movl 4(%esp),%edx
PIC_PROLOGUE
pushl $0 /* (sigset_t*)oset */
leal 28(%edx), %eax
pushl %eax /* (sigset_t*)set */
pushl $3 /* SIG_SETMASK */
pushq %rdi
pushq %rsi
movq %rdi,%rdx
movq $0,%rdi /* (sigset_t*)oset */
leaq 72(%rdx),%rsi /* (sigset_t*)set */
movq $3,%rdx /* SIG_SETMASK */
call PIC_PLT(CNAME(_sigprocmask))
addl $12,%esp
PIC_EPILOGUE
movl 4(%esp),%edx
movl 8(%esp),%eax
movl 0(%edx),%ecx
movl 4(%edx),%ebx
movl 8(%edx),%esp
movl 12(%edx),%ebp
movl 16(%edx),%esi
movl 20(%edx),%edi
popq %rsi
popq %rdi /* jmpbuf */
movq %rdi,%rdx
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
fninit
fldcw 24(%edx)
testl %eax,%eax
fldcw 64(%rdx)
testq %rax,%rax
jnz 1f
incl %eax
1: movl %ecx,0(%esp)
incq %rax
1: movq %rcx,0(%rsp)
ret

91
lib/libc/amd64/gen/sigsetjmp.S
View File

@ -58,57 +58,58 @@ __FBSDID("$FreeBSD$");
*/
ENTRY(sigsetjmp)
movl 8(%esp),%eax
movl 4(%esp),%ecx
movl %eax,44(%ecx)
testl %eax,%eax
pushq %rdi
movq %rdi,%rcx
movl %esi,88(%rcx)
testl %esi,%esi
jz 2f
PIC_PROLOGUE
leal 28(%ecx), %eax
pushl %eax /* (sigset_t*)oset */
pushl $0 /* (sigset_t*)set */
pushl $1 /* SIG_BLOCK */
leaq 72(%rcx),%rdi /* (sigset_t*)oset */
movq $0,%rsi /* (sigset_t*)set */
movq $1,%rdx /* SIG_BLOCK */
call PIC_PLT(CNAME(_sigprocmask))
addl $12,%esp
PIC_EPILOGUE
movl 4(%esp),%ecx
2: movl 0(%esp),%edx
movl %edx, 0(%ecx)
movl %ebx, 4(%ecx)
movl %esp, 8(%ecx)
movl %ebp,12(%ecx)
movl %esi,16(%ecx)
movl %edi,20(%ecx)
fnstcw 24(%ecx)
xorl %eax,%eax
popq %rdi
movq %rdi,%rcx
2: movq 0(%rsp),%rdx /* retval */
movq %rdx, 0(%rcx) /* retval */
movq %rbx, 8(%rcx)
movq %rsp,16(%rcx)
movq %rbp,24(%rcx)
movq %r12,32(%rcx)
movq %r13,40(%rcx)
movq %r14,48(%rcx)
movq %r15,56(%rcx)
fnstcw 64(%rcx)
xorq %rax,%rax
ret
.weak CNAME(siglongjmp);
.set CNAME(siglongjmp),CNAME(__siglongjmp);
ENTRY(__siglongjmp);
movl 4(%esp),%edx
cmpl $0,44(%edx)
.weak CNAME(siglongjmp)
.set CNAME(siglongjmp),CNAME(__siglongjmp)
ENTRY(__siglongjmp)
cmpl $0,88(%rdi)
jz 2f
PIC_PROLOGUE
pushl $0 /* (sigset_t*)oset */
leal 28(%edx), %eax
pushl %eax /* (sigset_t*)set */
pushl $3 /* SIG_SETMASK */
movq %rdi,%rdx
pushq %rdi
pushq %rsi
movq $0,%rdi /* (sigset_t*)oset */
leaq 72(%rdx),%rsi /* (sigset_t*)set */
movq $3,%rdx /* SIG_SETMASK */
call PIC_PLT(CNAME(_sigprocmask))
addl $12,%esp
PIC_EPILOGUE
movl 4(%esp),%edx
2: movl 8(%esp),%eax
movl 0(%edx),%ecx
movl 4(%edx),%ebx
movl 8(%edx),%esp
movl 12(%edx),%ebp
movl 16(%edx),%esi
movl 20(%edx),%edi
popq %rsi
popq %rdi /* jmpbuf */
2: movq %rdi,%rdx
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
fninit
fldcw 24(%edx)
testl %eax,%eax
fldcw 64(%rdx)
testq %rax,%rax
jnz 1f
incl %eax
1: movl %ecx,0(%esp)
incq %rax
1: movq %rcx,0(%rsp)
ret