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        .text
 
#; func_locvars
#; - function with a space on the stack 
#;   allocated for local variables
 
        .type   func_locvars,@function
func_locvars:
        .cfi_startproc
 
        #; alocate space for local vars
        sub     $0x1234,%rsp
        .cfi_adjust_cfa_offset  0x1234
 
        #; dummy body
        movl    $1,%eax
 
        #; release space of local vars and return
        add     $0x1234,%rsp
        .cfi_adjust_cfa_offset  -0x1234
        ret
        .cfi_endproc
 
#; func_prologue
#; - functions that begins with standard
#;   prologue: "pushq %rbp; movq %rsp,%rbp"
 
        .type   func_prologue,@function
func_prologue:
        .cfi_startproc
 
        #; prologue, CFI is valid after 
        #; each instruction.
        pushq   %rbp
        .cfi_def_cfa_offset     16
        .cfi_offset             %rbp, -16
        movq    %rsp, %rbp
        .cfi_def_cfa_register   %rbp
 
        #; function body
        call    func_locvars
        addl    $3, %eax
 
        #; epilogue with valid CFI
        #; (we're better than gcc :-)
        leaveq
        .cfi_def_cfa            %rsp, 8
        ret
        .cfi_endproc
 
#; func_otherreg
#; - function that moves frame pointer to 
#;   another register (r12) and then allocates 
#;   a space for local variables
 
        .type   func_otherreg,@function
func_otherreg:
        .cfi_startproc
 
        #; save frame pointer to r8
        movq    %rsp,%r8
        .cfi_def_cfa_register   r8
 
        #; alocate space for local vars
        #;  (no .cfi_{def,adjust}_cfa_offset here,
        #;   because CFA is computed from r8!)
        sub     $100,%rsp
 
        #; function body
        call    func_prologue
        addl    $2, %eax
 
        #; restore frame pointer from r8
        movq    %r8,%rsp
        .cfi_def_cfa_register   rsp
        ret
        .cfi_endproc
 
#; main
#; - typical function
        .type   main,@function
main:
        .cfi_startproc
 
        #; only function body that doesn't
        #; touch the stack at all.
        call    func_otherreg
 
        #; return
        ret
        .cfi_endproc
 
#; _start
#; - standard entry point
 
        .type   _start,@function
        .globl  _start
_start:
        .cfi_startproc
        call    main
        movq    %rax,%rdi
        movq    $0x3c,%rax
        syscall
        hlt
        .cfi_endproc
 
#; func_alldirectives
#; - test for all .cfi directives. 
#;   This function is never called and the CFI info doesn't make sense.
 
        .type   func_alldirectives,@function
func_alldirectives:
        .cfi_startproc simple
        .cfi_def_cfa    rsp,8
        nop
        .cfi_def_cfa_offset     16
        nop
        .cfi_def_cfa_register   r8
        nop
        .cfi_adjust_cfa_offset  0x1234
        nop
        .cfi_offset     %rsi, 0x10
        nop
        .cfi_register   %r8, %r9
        nop
        .cfi_remember_state
        nop
        .cfi_restore %rbp
        nop
        .cfi_undefined %rip
        nop
        .cfi_same_value rbx
        nop
        .cfi_restore_state
        ret
        .cfi_endproc
 
#; func_all_registers
#; - test for all .cfi register numbers. 
#;   This function is never called and the CFI info doesn't make sense.
 
        .type   func_all_registers,@function
func_all_registers:
        .cfi_startproc simple
 
        .cfi_undefined rip      ; nop
        .cfi_undefined rax      ; nop
        .cfi_undefined rcx      ; nop
        .cfi_undefined rdx      ; nop
        .cfi_undefined rbx      ; nop
        .cfi_undefined rsp      ; nop
        .cfi_undefined rbp      ; nop
        .cfi_undefined rsi      ; nop
        .cfi_undefined rdi      ; nop
        .cfi_undefined r8       ; nop
        .cfi_undefined r9       ; nop
        .cfi_undefined r10      ; nop
        .cfi_undefined r11      ; nop
        .cfi_undefined r12      ; nop
        .cfi_undefined r13      ; nop
        .cfi_undefined r14      ; nop
        .cfi_undefined r15      ; nop
        .cfi_undefined rflags   ; nop
 
        .cfi_undefined es       ; nop
        .cfi_undefined cs       ; nop
        .cfi_undefined ds       ; nop
        .cfi_undefined ss       ; nop
        .cfi_undefined fs       ; nop
        .cfi_undefined gs       ; nop
        .cfi_undefined tr       ; nop
        .cfi_undefined ldtr     ; nop
        .cfi_undefined fs.base  ; nop
        .cfi_undefined gs.base  ; nop
 
        .cfi_undefined mxcsr    ; nop
        .cfi_undefined xmm0     ; nop
        .cfi_undefined xmm1     ; nop
        .cfi_undefined xmm2     ; nop
        .cfi_undefined xmm3     ; nop
        .cfi_undefined xmm4     ; nop
        .cfi_undefined xmm5     ; nop
        .cfi_undefined xmm6     ; nop
        .cfi_undefined xmm7     ; nop
        .cfi_undefined xmm8     ; nop
        .cfi_undefined xmm9     ; nop
        .cfi_undefined xmm10    ; nop
        .cfi_undefined xmm11    ; nop
        .cfi_undefined xmm12    ; nop
        .cfi_undefined xmm13    ; nop
        .cfi_undefined xmm14    ; nop
        .cfi_undefined xmm15    ; nop
 
        .cfi_undefined fcw      ; nop
        .cfi_undefined fsw      ; nop
        .cfi_undefined st       ; nop
        .cfi_undefined st(1)    ; nop
        .cfi_undefined st(2)    ; nop
        .cfi_undefined st(3)    ; nop
        .cfi_undefined st(4)    ; nop
        .cfi_undefined st(5)    ; nop
        .cfi_undefined st(6)    ; nop
        .cfi_undefined st(7)    ; nop
 
        .cfi_undefined mm0      ; nop
        .cfi_undefined mm1      ; nop
        .cfi_undefined mm2      ; nop
        .cfi_undefined mm3      ; nop
        .cfi_undefined mm4      ; nop
        .cfi_undefined mm5      ; nop
        .cfi_undefined mm6      ; nop
        .cfi_undefined mm7      ; nop
 
        .cfi_endproc

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[/] [openrisc/] [trunk/] [gnu-src/] [binutils-2.20.1/] [gas/] [testsuite/] [gas/] [cfi/] [cfi-x86_64.s] - Blame information for rev 438

Line No.	Rev	Author	Line
1	205	julius	`.text`
2
3			`#; func_locvars`
4			`#; - function with a space on the stack`
5			`#; allocated for local variables`
6
7			`.type func_locvars,@function`
8			`func_locvars:`
9			`.cfi_startproc`
10
11			`#; alocate space for local vars`
12			`sub $0x1234,%rsp`
13			`.cfi_adjust_cfa_offset 0x1234`
14
15			`#; dummy body`
16			`movl $1,%eax`
17
18			`#; release space of local vars and return`
19			`add $0x1234,%rsp`
20			`.cfi_adjust_cfa_offset -0x1234`
21			`ret`
22			`.cfi_endproc`
23
24			`#; func_prologue`
25			`#; - functions that begins with standard`
26			`#; prologue: "pushq %rbp; movq %rsp,%rbp"`
27
28			`.type func_prologue,@function`
29			`func_prologue:`
30			`.cfi_startproc`
31
32			`#; prologue, CFI is valid after`
33			`#; each instruction.`
34			`pushq %rbp`
35			`.cfi_def_cfa_offset 16`
36			`.cfi_offset %rbp, -16`
37			`movq %rsp, %rbp`
38			`.cfi_def_cfa_register %rbp`
39
40			`#; function body`
41			`call func_locvars`
42			`addl $3, %eax`
43
44			`#; epilogue with valid CFI`
45			`#; (we're better than gcc :-)`
46			`leaveq`
47			`.cfi_def_cfa %rsp, 8`
48			`ret`
49			`.cfi_endproc`
50
51			`#; func_otherreg`
52			`#; - function that moves frame pointer to`
53			`#; another register (r12) and then allocates`
54			`#; a space for local variables`
55
56			`.type func_otherreg,@function`
57			`func_otherreg:`
58			`.cfi_startproc`
59
60			`#; save frame pointer to r8`
61			`movq %rsp,%r8`
62			`.cfi_def_cfa_register r8`
63
64			`#; alocate space for local vars`
65			`#; (no .cfi_{def,adjust}_cfa_offset here,`
66			`#; because CFA is computed from r8!)`
67			`sub $100,%rsp`
68
69			`#; function body`
70			`call func_prologue`
71			`addl $2, %eax`
72
73			`#; restore frame pointer from r8`
74			`movq %r8,%rsp`
75			`.cfi_def_cfa_register rsp`
76			`ret`
77			`.cfi_endproc`
78
79			`#; main`
80			`#; - typical function`
81			`.type main,@function`
82			`main:`
83			`.cfi_startproc`
84
85			`#; only function body that doesn't`
86			`#; touch the stack at all.`
87			`call func_otherreg`
88
89			`#; return`
90			`ret`
91			`.cfi_endproc`
92
93			`#; _start`
94			`#; - standard entry point`
95
96			`.type _start,@function`
97			`.globl _start`
98			`_start:`
99			`.cfi_startproc`
100			`call main`
101			`movq %rax,%rdi`
102			`movq $0x3c,%rax`
103			`syscall`
104			`hlt`
105			`.cfi_endproc`
106
107			`#; func_alldirectives`
108			`#; - test for all .cfi directives.`
109			`#; This function is never called and the CFI info doesn't make sense.`
110
111			`.type func_alldirectives,@function`
112			`func_alldirectives:`
113			`.cfi_startproc simple`
114			`.cfi_def_cfa rsp,8`
115			`nop`
116			`.cfi_def_cfa_offset 16`
117			`nop`
118			`.cfi_def_cfa_register r8`
119			`nop`
120			`.cfi_adjust_cfa_offset 0x1234`
121			`nop`
122			`.cfi_offset %rsi, 0x10`
123			`nop`
124			`.cfi_register %r8, %r9`
125			`nop`
126			`.cfi_remember_state`
127			`nop`
128			`.cfi_restore %rbp`
129			`nop`
130			`.cfi_undefined %rip`
131			`nop`
132			`.cfi_same_value rbx`
133			`nop`
134			`.cfi_restore_state`
135			`ret`
136			`.cfi_endproc`
137
138			`#; func_all_registers`
139			`#; - test for all .cfi register numbers.`
140			`#; This function is never called and the CFI info doesn't make sense.`
141
142			`.type func_all_registers,@function`
143			`func_all_registers:`
144			`.cfi_startproc simple`
145
146			`.cfi_undefined rip ; nop`
147			`.cfi_undefined rax ; nop`
148			`.cfi_undefined rcx ; nop`
149			`.cfi_undefined rdx ; nop`
150			`.cfi_undefined rbx ; nop`
151			`.cfi_undefined rsp ; nop`
152			`.cfi_undefined rbp ; nop`
153			`.cfi_undefined rsi ; nop`
154			`.cfi_undefined rdi ; nop`
155			`.cfi_undefined r8 ; nop`
156			`.cfi_undefined r9 ; nop`
157			`.cfi_undefined r10 ; nop`
158			`.cfi_undefined r11 ; nop`
159			`.cfi_undefined r12 ; nop`
160			`.cfi_undefined r13 ; nop`
161			`.cfi_undefined r14 ; nop`
162			`.cfi_undefined r15 ; nop`
163			`.cfi_undefined rflags ; nop`
164
165			`.cfi_undefined es ; nop`
166			`.cfi_undefined cs ; nop`
167			`.cfi_undefined ds ; nop`
168			`.cfi_undefined ss ; nop`
169			`.cfi_undefined fs ; nop`
170			`.cfi_undefined gs ; nop`
171			`.cfi_undefined tr ; nop`
172			`.cfi_undefined ldtr ; nop`
173			`.cfi_undefined fs.base ; nop`
174			`.cfi_undefined gs.base ; nop`
175
176			`.cfi_undefined mxcsr ; nop`
177			`.cfi_undefined xmm0 ; nop`
178			`.cfi_undefined xmm1 ; nop`
179			`.cfi_undefined xmm2 ; nop`
180			`.cfi_undefined xmm3 ; nop`
181			`.cfi_undefined xmm4 ; nop`
182			`.cfi_undefined xmm5 ; nop`
183			`.cfi_undefined xmm6 ; nop`
184			`.cfi_undefined xmm7 ; nop`
185			`.cfi_undefined xmm8 ; nop`
186			`.cfi_undefined xmm9 ; nop`
187			`.cfi_undefined xmm10 ; nop`
188			`.cfi_undefined xmm11 ; nop`
189			`.cfi_undefined xmm12 ; nop`
190			`.cfi_undefined xmm13 ; nop`
191			`.cfi_undefined xmm14 ; nop`
192			`.cfi_undefined xmm15 ; nop`
193
194			`.cfi_undefined fcw ; nop`
195			`.cfi_undefined fsw ; nop`
196			`.cfi_undefined st ; nop`
197			`.cfi_undefined st(1) ; nop`
198			`.cfi_undefined st(2) ; nop`
199			`.cfi_undefined st(3) ; nop`
200			`.cfi_undefined st(4) ; nop`
201			`.cfi_undefined st(5) ; nop`
202			`.cfi_undefined st(6) ; nop`
203			`.cfi_undefined st(7) ; nop`
204
205			`.cfi_undefined mm0 ; nop`
206			`.cfi_undefined mm1 ; nop`
207			`.cfi_undefined mm2 ; nop`
208			`.cfi_undefined mm3 ; nop`
209			`.cfi_undefined mm4 ; nop`
210			`.cfi_undefined mm5 ; nop`
211			`.cfi_undefined mm6 ; nop`
212			`.cfi_undefined mm7 ; nop`
213
214			`.cfi_endproc`