presque apres les trames de pile 64 . 32

Pierre Cwik
1 parent 4ee37b10
Showing 2 changed files with 159 additions and 1 deletions Show diff stats
answerstoquestions
tramedepile32.s
@@ -111,7 +111,126 @@ le printf est stocké dans une fonction à l&#39;adresse 0xb7242f00 ?
  
  
  
-/////////////////////////////////////////////////////////////////////////////////////// 
+/////////////////////////////////////////////////////////////////////////////////////// 4/5 ///////////////////////////////////////////////////////////////////////////
+
+Le code du petit programme en assembleur (64 bits) :
+
+.file   "tramedepile.c"
+        .section        .rodata
+.LC0:
+        .string "a+b=%d\n"
+        .text
+        .globl  addition
+        .type   addition, @function
+addition:
+.LFB0:                                                                                                                                        
+        .cfi_startproc                                                                                                                        
+        pushq   %rbp                                                                                                                          
+        .cfi_def_cfa_offset 16                                                                                                                
+        .cfi_offset 6, -16
+        movq    %rsp, %rbp
+        .cfi_def_cfa_register 6
+        subq    $32, %rsp
+        movl    %edi, -20(%rbp)
+        movl    %esi, -24(%rbp)
+        movl    -20(%rbp), %edx
+        movl    -24(%rbp), %eax
+        addl    %edx, %eax
+        movl    %eax, -4(%rbp)
+        movl    -4(%rbp), %eax
+        movl    %eax, %esi
+        movl    $.LC0, %edi
+        movl    $0, %eax
+        call    printf
+        leave
+        .cfi_def_cfa 7, 8
+        ret
+        .cfi_endproc
+.LFE0:
+        .size   addition, .-addition
+        .globl  main
+        .type   main, @function
+main:
+.LFB1:
+        .cfi_startproc
+        pushq   %rbp
+        .cfi_def_cfa_offset 16
+        .cfi_offset 6, -16
+        movq    %rsp, %rbp
+        .cfi_def_cfa_register 6
+        movl    $1, %esi
+        movl    $1, %edi
+        call    addition
+        movl    $0, %eax
+        popq    %rbp
+        .cfi_def_cfa 7, 8
+        ret
+        .cfi_endproc
+.LFE1:
+        .size   main, .-main
+        .ident  "GCC: (Debian 4.9.2-10) 4.9.2"
+        .section        .note.GNU-stack,"",@progbits
+        
+        
+rip (8 octets)
+rpb (8 octets)
+eax/1 (4 octets)
+.. (4 octets)
+.. (4 octets)
+.. (4 octets)
+edi/1 (4 octets)
+esi/1 (4 octets)
+.. (4 octets)
+        
+        
+        
+        
+        
+        
+en (normalement) 32 bits :
+
+.file   "tramedepile32.c"
+        .section        .rodata
+.LC0:
+        .string "a+b=%d\n"
+        .text
+.globl addition
+        .type   addition, @function
+addition:
+        pushl   %ebp
+        movl    %esp, %ebp
+        subl    $40, %esp
+        movl    12(%ebp), %eax
+        movl    8(%ebp), %edx
+        leal    (%edx,%eax), %eax
+        movl    %eax, -12(%ebp)
+        movl    $.LC0, %eax
+        movl    -12(%ebp), %edx
+        movl    %edx, 4(%esp)
+        movl    %eax, (%esp)
+        call    printf
+        leave
+        ret
+        .size   addition, .-addition
+.globl main
+        .type   main, @function
+main:
+        pushl   %ebp
+        movl    %esp, %ebp
+        andl    $-16, %esp
+        subl    $16, %esp
+        movl    $1, 4(%esp)
+        movl    $1, (%esp)
+        call    addition
+        movl    $0, %eax
+        leave
+        ret
+        .size   main, .-main
+        .ident  "GCC: (Debian 4.4.5-8) 4.4.5"
+        .section        .note.GNU-stack,"",@progbits
+        
+        
+
  
  
  
@@ -0,0 +1,39 @@
+	.file	"tramedepile32.c"
+	.section	.rodata
+.LC0:
+	.string	"a+b=%d\n"
+	.text
+.globl addition
+	.type	addition, @function
+addition:
+	pushl	%ebp
+	movl	%esp, %ebp
+	subl	$40, %esp
+	movl	12(%ebp), %eax
+	movl	8(%ebp), %edx
+	leal	(%edx,%eax), %eax
+	movl	%eax, -12(%ebp)
+	movl	$.LC0, %eax
+	movl	-12(%ebp), %edx
+	movl	%edx, 4(%esp)
+	movl	%eax, (%esp)
+	call	printf
+	leave
+	ret
+	.size	addition, .-addition
+.globl main
+	.type	main, @function
+main:
+	pushl	%ebp
+	movl	%esp, %ebp
+	andl	$-16, %esp
+	subl	$16, %esp
+	movl	$1, 4(%esp)
+	movl	$1, (%esp)
+	call	addition
+	movl	$0, %eax
+	leave
+	ret
+	.size	main, .-main
+	.ident	"GCC: (Debian 4.4.5-8) 4.4.5"
+	.section	.note.GNU-stack,"",@progbits