FreeChainXenon/binutils-gdb
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

gas: aarch64: testsuite: add new tests for SCFI

Browse source 
Similar to the x86_64 testcases, some .s files contain the corresponding
CFI directives.  This helps in validating the synthesized CFI by running
those tests with and without the --scfi=experimental command line
option.

GAS issues some diagnostics, enabled by default, with
--scfi=experimental.  The diagnostics have been added with an intent to
help user correct inadvertent errors in their hand-written asm.  An
error is issued when GAS finds that input asm is not amenable to
accurate CFI synthesis.  The existing scfi-diag-*.s tests in the
gas/testsuite/gas/scfi/x86_64 directory test some SCFI diagnostics
already:

      - (#1) "Warning: SCFI: Asymetrical register restore"
      - (#2) "Error: SCFI: usage of REG_FP as scratch not supported"
      - (#3) "Error: SCFI: unsupported stack manipulation pattern"
      - (#4) "Error: untraceable control flow for func 'XXX'"

In the newly added aarch64 testsuite, further tests for additional
diagnostics have been added:
 - scfi-diag-1.s in this patch highlights an aarch64-specific diagnostic:
   (#5) "Warning: SCFI: ignored probable save/restore op with reg offset"

Additionally, some testcases are added to showcase the (currently)
unsupported patterns, e.g., scfi-unsupported-1.s
        mov     x16, 4384
        sub     sp, sp, x16

gas/testsuite/:
	* gas/scfi/README: Update comment to include aarch64.
	* gas/scfi/aarch64/scfi-aarch64.exp: New file.
	* gas/scfi/aarch64/ginsn-arith-1.l: New test.
	* gas/scfi/aarch64/ginsn-arith-1.s: New test.
	* gas/scfi/aarch64/ginsn-cofi-1.l: New test.
	* gas/scfi/aarch64/ginsn-cofi-1.s: New test.
	* gas/scfi/aarch64/ginsn-ldst-1.l: New test.
	* gas/scfi/aarch64/ginsn-ldst-1.s: New test.
	* gas/scfi/aarch64/scfi-callee-saved-fp-1.d: New test.
	* gas/scfi/aarch64/scfi-callee-saved-fp-1.l: New test.
	* gas/scfi/aarch64/scfi-callee-saved-fp-1.s: New test.
	* gas/scfi/aarch64/scfi-callee-saved-fp-2.d: New test.
	* gas/scfi/aarch64/scfi-callee-saved-fp-2.l: New test.
	* gas/scfi/aarch64/scfi-callee-saved-fp-2.s: New test.
	* gas/scfi/aarch64/scfi-cb-1.d: New test.
	* gas/scfi/aarch64/scfi-cb-1.l: New test.
	* gas/scfi/aarch64/scfi-cb-1.s: New test.
	* gas/scfi/aarch64/scfi-cfg-1.d: New test.
	* gas/scfi/aarch64/scfi-cfg-1.l: New test.
	* gas/scfi/aarch64/scfi-cfg-1.s: New test.
	* gas/scfi/aarch64/scfi-cfg-2.d: New test.
	* gas/scfi/aarch64/scfi-cfg-2.l: New test.
	* gas/scfi/aarch64/scfi-cfg-2.s: New test.
	* gas/scfi/aarch64/scfi-cfg-3.d: New test.
	* gas/scfi/aarch64/scfi-cfg-3.l: New test.
	* gas/scfi/aarch64/scfi-cfg-3.s: New test.
	* gas/scfi/aarch64/scfi-cfg-4.l: New test.
	* gas/scfi/aarch64/scfi-cfg-4.s: New test.
	* gas/scfi/aarch64/scfi-cond-br-1.d: New test.
	* gas/scfi/aarch64/scfi-cond-br-1.l: New test.
	* gas/scfi/aarch64/scfi-cond-br-1.s: New test.
	* gas/scfi/aarch64/scfi-diag-1.l: New test.
	* gas/scfi/aarch64/scfi-diag-1.s: New test.
	* gas/scfi/aarch64/scfi-diag-2.l: New test.
	* gas/scfi/aarch64/scfi-diag-2.s: New test.
	* gas/scfi/aarch64/scfi-diag-3.l: New test.
	* gas/scfi/aarch64/scfi-diag-3.s: New test.
	* gas/scfi/aarch64/scfi-ldrp-1.d: New test.
	* gas/scfi/aarch64/scfi-ldrp-1.l: New test.
	* gas/scfi/aarch64/scfi-ldrp-1.s: New test.
	* gas/scfi/aarch64/scfi-ldrp-2.d: New test.
	* gas/scfi/aarch64/scfi-ldrp-2.l: New test.
	* gas/scfi/aarch64/scfi-ldrp-2.s: New test.
	* gas/scfi/aarch64/scfi-ldstnap-1.d: New test.
	* gas/scfi/aarch64/scfi-ldstnap-1.l: New test.
	* gas/scfi/aarch64/scfi-ldstnap-1.s: New test.
	* gas/scfi/aarch64/scfi-strp-1.d: New test.
	* gas/scfi/aarch64/scfi-strp-1.l: New test.
	* gas/scfi/aarch64/scfi-strp-1.s: New test.
	* gas/scfi/aarch64/scfi-strp-2.d: New test.
	* gas/scfi/aarch64/scfi-strp-2.l: New test.
	* gas/scfi/aarch64/scfi-strp-2.s: New test.
	* gas/scfi/aarch64/scfi-unsupported-1.l: New test.
	* gas/scfi/aarch64/scfi-unsupported-1.s: New test.
	* gas/scfi/aarch64/scfi-unsupported-2.l: New test.
	* gas/scfi/aarch64/scfi-unsupported-2.s: New test.
This commit is contained in:
Indu Bhagat 2024-07-18 20:24:44 -07:00
parent 29085f7243
commit 0331cd9c51
59 changed files with 1501 additions and 1 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

2
gas/testsuite/gas/scfi/README
View file

@ -1,6 +1,6 @@
Notes on the SCFI testsuite in GAS:
* At this time, SCFI machinery is only supported for x86_64.
* At this time, SCFI machinery is only supported for x86_64 and aarch64.
* When adding more core SCFI tests (scfi-* tests), please keep CFI
annotations updated in the .s files. Ideally the test should be run with and

40
gas/testsuite/gas/scfi/aarch64/ginsn-arith-1.l Normal file
View file

@ -0,0 +1,40 @@
.*: Assembler messages:
.*:13: Error: SCFI: unsupported stack manipulation pattern
.*:19: Error: SCFI: forward pass failed for func 'foo'
AARCH64 GAS .*
1 # Testcase for a variety of arith instructions
2 .text
3 .align 2
4 .global foo
5 .type foo, %function
5 ginsn: SYM FUNC_BEGIN
6 foo:
6 ginsn: SYM foo
7 \?\?\?\? FF830091 add sp, sp, 32
7 ginsn: ADD %r31, 32, %r31
8 \?\?\?\? FD5B21B1 adds x29, sp, 2134
8 ginsn: ADD %r31, 2134, %r29
9 \?\?\?\? FF8300D1 sub sp, sp, 32
9 ginsn: SUB %r31, 32, %r31
10 \?\?\?\? FD5B21F1 subs x29, sp, 2134
10 ginsn: SUB %r31, 2134, %r29
11 \?\?\?\? FD63228B add x29, sp, x2
11 ginsn: ADD %r31, %r2, %r29
12 \?\?\?\? FD6323CB sub x29, sp, x3
12 ginsn: SUB %r31, %r3, %r29
13 \?\?\?\? BF63238B add sp, x29, x3
13 ginsn: ADD %r29, %r3, %r31
14 \?\?\?\? BF6322CB sub sp, x29, x2
14 ginsn: SUB %r29, %r2, %r31
15 \?\?\?\? 1F48220B add wsp, w0, w2, lsl 2
15 ginsn: OTH 0, 0, %r31
16 \?\?\?\? A4C0228B add x4, x5, x2, sxtw
17 \?\?\?\? BFC0228B add sp, x5, x2, sxtw
17 ginsn: OTH 0, 0, %r31
18 \?\?\?\? C0035FD6 ret
18 ginsn: RET
19 .size foo, .-foo
19 ginsn: SYM FUNC_END

19
gas/testsuite/gas/scfi/aarch64/ginsn-arith-1.s Normal file
View file

@ -0,0 +1,19 @@
# Testcase for a variety of arith instructions
.text
.align 2
.global foo
.type foo, %function
foo:
add sp, sp, 32
adds x29, sp, 2134
sub sp, sp, 32
subs x29, sp, 2134
add x29, sp, x2
sub x29, sp, x3
add sp, x29, x3
sub sp, x29, x2
add wsp, w0, w2, lsl 2
add x4, x5, x2, sxtw
add sp, x5, x2, sxtw
ret
.size foo, .-foo

30
gas/testsuite/gas/scfi/aarch64/ginsn-cofi-1.l Normal file
View file

@ -0,0 +1,30 @@
.*: Assembler messages:
.*:16: Error: untraceable control flow for func 'foo'
AARCH64 GAS .*
1 # Testcase for a variety of change of flow instructions
2 # Because some of these are indirect branches, SCFI will bail out
3 # with an error. This test merely checks that the ginsn creation
4 # process can handle these insns gracefully.
5 .text
6 .align 2
7 .global foo
8 .type foo, %function
8 ginsn: SYM FUNC_BEGIN
9 foo:
9 ginsn: SYM foo
10 \?\?\?\? 00000094 bl dump_bt
10 ginsn: CALL
11 \?\?\?\? 02000014 b .L3
11 ginsn: JMP
12 \?\?\?\? 20021FD6 br x17
12 ginsn: JMP %r17,
13 .L3:
13 ginsn: SYM .L3
14 \?\?\?\? 60003FD6 blr x3
14 ginsn: CALL
15 \?\?\?\? C0035FD6 ret
15 ginsn: RET
16 .size foo, .-foo
16 ginsn: SYM FUNC_END

16
gas/testsuite/gas/scfi/aarch64/ginsn-cofi-1.s Normal file
View file

@ -0,0 +1,16 @@
# Testcase for a variety of change of flow instructions
# Because some of these are indirect branches, SCFI will bail out
# with an error. This test merely checks that the ginsn creation
# process can handle these insns gracefully.
.text
.align 2
.global foo
.type foo, %function
foo:
bl dump_bt
b .L3
br x17
.L3:
blr x3
ret
.size foo, .-foo

101
gas/testsuite/gas/scfi/aarch64/ginsn-ldst-1.l Normal file
View file

@ -0,0 +1,101 @@
AARCH64 GAS .*
1 # Testcase for a variety of ld st instructions.
2 # stg ops must generate the sp update arithmetic insn, when applicable
3 # due to writeback.
4 .text
5 .align 2
6 .global foo
7 .type foo, %function
7 ginsn: SYM FUNC_BEGIN
8 foo:
8 ginsn: SYM foo
9 # ldstpair_indexed
10 0000 FF7F8629 stp wzr, wzr, \[sp, 48\]!
10 ginsn: ADD %r31, 48, %r31
11 0004 E00782A9 stp x0, x1, \[sp, 32\]!
11 ginsn: ADD %r31, 32, %r31
11 ginsn: STORE %r0, \[%r31\+0\]
11 ginsn: STORE %r1, \[%r31\+8\]
12 0008 E827BC6D stp d8, d9, \[sp, -64\]!
12 ginsn: ADD %r31, -64, %r31
12 ginsn: STORE %r72, \[%r31\+0\]
12 ginsn: STORE %r73, \[%r31\+8\]
13 000c E827C46C ldp d8, d9, \[sp\], 64
13 ginsn: LOAD \[%r31\+0\], %r72
13 ginsn: LOAD \[%r31\+8\], %r73
13 ginsn: ADD %r31, 64, %r31
14 # 32-bit FP regs
15 0010 E51BB42D stp s5, s6, \[sp, -96\]!
15 ginsn: ADD %r31, -96, %r31
16 0014 E51BCC2C ldp s5, s6, \[sp\], 96
16 ginsn: ADD %r31, 96, %r31
17 # 32-bit INT regs
18 0018 E10BB029 stp w1, w2, \[sp, -128\]!
18 ginsn: ADD %r31, -128, %r31
19 001c E10BD028 ldp w1, w2, \[sp\], 128
19 ginsn: ADD %r31, 128, %r31
20 # ldstpair_off
21 0020 E00702AD stp q0, q1, \[sp, 64\]
21 ginsn: STORE %r64, \[%r31\+64\]
21 ginsn: STORE %r65, \[%r31\+80\]
22 0024 FF7F0629 stp wzr, wzr, \[sp, 48\]
23 0028 1F7840AD ldp q31, q30, \[x0\]
23 ginsn: LOAD \[%r0\+0\], %r95
23 ginsn: LOAD \[%r0\+16\], %r94
24 002c FF4F01A9 stp xzr, x19, \[sp, 16\]
24 ginsn: STORE %r19, \[%r31\+24\]
25 0030 F37F01A9 stp x19, xzr, \[sp, 16\]
25 ginsn: STORE %r19, \[%r31\+16\]
26 # ldst_imm9
27 0034 E78F4F38 ldrb w7, \[sp, 248\]!
27 ginsn: ADD %r31, 248, %r31
28 0038 FD0FC33C ldr q29, \[sp, 48\]!
28 ginsn: ADD %r31, 48, %r31
28 ginsn: LOAD \[%r31\+0\], %r93
29 003c FF0F42B8 ldr wzr, \[sp, 32\]!
29 ginsn: ADD %r31, 32, %r31
30 0040 E30742F8 ldr x3, \[sp\], 32
30 ginsn: LOAD \[%r31\+0\], %r3
AARCH64 GAS .*
30 ginsn: ADD %r31, 32, %r31
31 # 32-bit ldr
32 0044 E10744BC ldr s1, \[sp\], 64
32 ginsn: ADD %r31, 64, %r31
33 # ldst_pos
34 0048 FF3340B9 ldr wzr, \[sp, 48\]
35 004c FD1300F9 str x29, \[sp, 32\]
35 ginsn: STORE %r29, \[%r31\+32\]
36 0050 FD1340F9 ldr x29, \[sp, 32\]
36 ginsn: LOAD \[%r31\+32\], %r29
37 # store tag
38 0054 FF2F20D9 stg sp, \[sp, 32\]!
38 ginsn: ADD %r31, 32, %r31
39 # store tag pair
40 0058 FBF38169 stgp x27, x28, \[sp, 48\]!
40 ginsn: ADD %r31, 48, %r31
41 # ldpsw / ldrsw
42 005c F353E069 ldpsw x19, x20, \[sp, -256\]!
42 ginsn: ADD %r31, -256, %r31
43 0060 F50F98B8 ldrsw x21, \[sp, -128\]!
43 ginsn: ADD %r31, -128, %r31
44 # ldrsb / ldrsh
45 0064 F70F9938 ldrsb x23, \[sp, -112\]!
45 ginsn: ADD %r31, -112, %r31
46 0068 F88F9978 ldrsh x24, \[sp, -104\]!
46 ginsn: ADD %r31, -104, %r31
47 # ldrb / ldrh / strb / strh
48 006c F90F5A38 ldrb w25, \[sp, -96\]!
48 ginsn: ADD %r31, -96, %r31
49 0070 FA8F5A78 ldrh w26, \[sp, -88\]!
49 ginsn: ADD %r31, -88, %r31
50 0074 F90F1A38 strb w25, \[sp, -96\]!
50 ginsn: ADD %r31, -96, %r31
51 0078 FA8F1A78 strh w26, \[sp, -88\]!
51 ginsn: ADD %r31, -88, %r31
52 007c C0035FD6 ret
52 ginsn: RET
53 .size foo, .-foo
53 ginsn: SYM FUNC_END

53
gas/testsuite/gas/scfi/aarch64/ginsn-ldst-1.s Normal file
View file

@ -0,0 +1,53 @@
# Testcase for a variety of ld st instructions.
# stg ops must generate the sp update arithmetic insn, when applicable
# due to writeback.
.text
.align 2
.global foo
.type foo, %function
foo:
# ldstpair_indexed
stp wzr, wzr, [sp, 48]!
stp x0, x1, [sp, 32]!
stp d8, d9, [sp, -64]!
ldp d8, d9, [sp], 64
# 32-bit FP regs
stp s5, s6, [sp, -96]!
ldp s5, s6, [sp], 96
# 32-bit INT regs
stp w1, w2, [sp, -128]!
ldp w1, w2, [sp], 128
# ldstpair_off
stp q0, q1, [sp, 64]
stp wzr, wzr, [sp, 48]
ldp q31, q30, [x0]
stp xzr, x19, [sp, 16]
stp x19, xzr, [sp, 16]
# ldst_imm9
ldrb w7, [sp, 248]!
ldr q29, [sp, 48]!
ldr wzr, [sp, 32]!
ldr x3, [sp], 32
# 32-bit ldr
ldr s1, [sp], 64
# ldst_pos
ldr wzr, [sp, 48]
str x29, [sp, 32]
ldr x29, [sp, 32]
# store tag
stg sp, [sp, 32]!
# store tag pair
stgp x27, x28, [sp, 48]!
# ldpsw / ldrsw
ldpsw x19, x20, [sp, -256]!
ldrsw x21, [sp, -128]!
# ldrsb / ldrsh
ldrsb x23, [sp, -112]!
ldrsh x24, [sp, -104]!
# ldrb / ldrh / strb / strh
ldrb w25, [sp, -96]!
ldrh w26, [sp, -88]!
strb w25, [sp, -96]!
strh w26, [sp, -88]!
ret
.size foo, .-foo

48
gas/testsuite/gas/scfi/aarch64/ginsn-misc-1.l Normal file
View file

@ -0,0 +1,48 @@
.*: Assembler messages:
.*:13: Error: SCFI: unsupported stack manipulation pattern
.*:33: Error: SCFI: forward pass failed for func 'foo'
AARCH64 GAS .*
1 # Testcase for a variety of misc instructions.
2 # Ensure graceful handling, irrespective of ginsn generation.
3 # - ldrsw, ldpsw ops need a mention: they are 32-bit loads from memory
4 # and cannot be used for reg restore. For CFI purposes, the width has to be
5 # 8 bytes or more. Expect no memory ginsn ever as ginsn do not track width
6 # of memory accesses yet.
7 symbol:
8 \?\?\?\? 7700 .string "w"
9
10 .type foo, %function
10 ginsn: SYM FUNC_BEGIN
11 foo:
11 ginsn: SYM foo
12 \?\?\?\? 00000000 adrp x0, symbol
12 0090
13 \?\?\?\? 1F000091 add sp, x0, :lo12:symbol
13 ginsn: OTH 0, 0, %r31
14 \?\?\?\? 2000A0F2 movk x0, 0x1, lsl 16
15 \?\?\?\? E10380F9 prfm PLDL1STRM, \[sp\]
16 \?\?\?\? E013DF9A irg x0, sp
17 \?\?\?\? 000820D9 stg x0, \[x0\]
18 \?\?\?\? F5DB3C69 stgp x21, x22, \[sp, -112\]
19 \?\?\?\? E03FBF91 addg x0, sp, #0x3f0, #0xf
20 \?\?\?\? 1F3CAA91 addg sp, x0, #0x2a0, #0xf
20 ginsn: OTH 0, 0, %r31
21 \?\?\?\? F4577069 ldpsw x20, x21, \[sp, -128\]
22 \?\?\?\? F3534069 ldpsw x19, x20, \[sp\]
23 \?\?\?\? 9B0080B9 ldrsw x27, \[x4\]
24 \?\?\?\? F4038039 ldrsb x20, \[sp\]
25 \?\?\?\? F4038079 ldrsh x20, \[sp\]
26 # Test a few insn with wzr / xzr
27 \?\?\?\? 3F0480D2 mov xzr, 33
28 \?\?\?\? E0031FAA mov x0, xzr
29 \?\?\?\? 1F00018B add xzr, x0, x1
30 \?\?\?\? 3F603F8B add sp, x1, xzr
30 ginsn: ADD %r1, %r31, %r31
31 \?\?\?\? FF031F8B add xzr, xzr, xzr
32 \?\?\?\? C0035FD6 ret
32 ginsn: RET
33 .size foo,.-foo
33 ginsn: SYM FUNC_END

33
gas/testsuite/gas/scfi/aarch64/ginsn-misc-1.s Normal file
View file

@ -0,0 +1,33 @@
# Testcase for a variety of misc instructions.
# Ensure graceful handling, irrespective of ginsn generation.
# - ldrsw, ldpsw ops need a mention: they are 32-bit loads from memory
# and cannot be used for reg restore. For CFI purposes, the width has to be
# 8 bytes or more. Expect no memory ginsn ever as ginsn do not track width
# of memory accesses yet.
symbol:
.string "w"
.type foo, %function
foo:
adrp x0, symbol
add sp, x0, :lo12:symbol
movk x0, 0x1, lsl 16
prfm PLDL1STRM, [sp]
irg x0, sp
stg x0, [x0]
stgp x21, x22, [sp, -112]
addg x0, sp, #0x3f0, #0xf
addg sp, x0, #0x2a0, #0xf
ldpsw x20, x21, [sp, -128]
ldpsw x19, x20, [sp]
ldrsw x27, [x4]
ldrsb x20, [sp]
ldrsh x20, [sp]
# Test a few insn with wzr / xzr
mov xzr, 33
mov x0, xzr
add xzr, x0, x1
add sp, x1, xzr
add xzr, xzr, xzr
ret
.size foo,.-foo

74
gas/testsuite/gas/scfi/aarch64/scfi-aarch64.exp Normal file
View file

@ -0,0 +1,74 @@
# Copyright (C) 2022-2023 Free Software Foundation, Inc.
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA.
if { ![is_elf_format] } then {
return
}
# common tests
if { ([istarget "aarch64-*-*"]) } then {
global ASFLAGS
set old_ASFLAGS "$ASFLAGS"
run_list_test "ginsn-arith-1" "--scfi=experimental -ali --warn"
run_list_test "ginsn-cofi-1" "--scfi=experimental -ali --warn"
run_list_test "ginsn-ldst-1" "--scfi=experimental -march=armv8-a+memtag -ali --warn"
run_list_test "ginsn-misc-1" "--scfi=experimental -march=armv8-a+memtag -ali --warn"
run_list_test "scfi-diag-1" "--scfi=experimental"
run_list_test "scfi-diag-2" "--scfi=experimental"
run_list_test "scfi-diag-3" "--scfi=experimental"
run_list_test "scfi-unsupported-1" "--scfi=experimental"
run_list_test "scfi-unsupported-2" "--scfi=experimental"
run_dump_test "scfi-callee-saved-fp-1"
run_list_test "scfi-callee-saved-fp-1" "--scfi=experimental --warn"
run_dump_test "scfi-callee-saved-fp-2"
run_list_test "scfi-callee-saved-fp-2" "--scfi=experimental --warn"
run_dump_test "scfi-ldrp-1"
run_list_test "scfi-ldrp-1" "--scfi=experimental --warn"
run_dump_test "scfi-ldrp-2"
run_list_test "scfi-ldrp-2" "--scfi=experimental --warn"
run_dump_test "scfi-strp-1"
run_list_test "scfi-strp-1" "--scfi=experimental --warn"
run_dump_test "scfi-strp-2"
run_list_test "scfi-strp-2" "--scfi=experimental --warn"
run_dump_test "scfi-ldstnap-1"
run_list_test "scfi-ldstnap-1" "--scfi=experimental --warn"
run_dump_test "scfi-cb-1"
run_list_test "scfi-cb-1" "--scfi=experimental --warn"
run_dump_test "scfi-cond-br-1"
run_list_test "scfi-cond-br-1" "--scfi=experimental --warn"
run_dump_test "scfi-cfg-1"
run_list_test "scfi-cfg-1" "--scfi=experimental --warn"
run_dump_test "scfi-cfg-2"
run_list_test "scfi-cfg-2" "--scfi=experimental --warn"
run_dump_test "scfi-cfg-3"
run_list_test "scfi-cfg-3" "--scfi=experimental --warn"
run_dump_test "scfi-cfg-4"
run_list_test "scfi-cfg-4" "--scfi=experimental --warn"
}

57
gas/testsuite/gas/scfi/aarch64/scfi-callee-saved-fp-1.d Normal file
View file

@ -0,0 +1,57 @@
#as: --scfi=experimental -W
#objdump: -Wf
#name: Synthesize CFI for callee-saved FP regs I
#...
Contents of the .eh_frame section:
00000000 0+0010 00000000 CIE
Version: 1
Augmentation: "zR"
Code alignment factor: 4
Data alignment factor: -8
Return address column: 30
Augmentation data: 1b
DW_CFA_def_cfa: r31 \(sp\) ofs 0
00000014 0+[0-9a-f]+ 0+0018 FDE cie=00000000 pc=0+0000..0+0040
DW_CFA_advance_loc: 4 to 0+0004
DW_CFA_def_cfa_offset: 128
DW_CFA_offset: r29 \(x29\) at cfa-128
DW_CFA_offset: r30 \(x30\) at cfa-120
DW_CFA_advance_loc: 4 to 0+0008
DW_CFA_def_cfa_register: r29 \(x29\)
DW_CFA_advance_loc: 4 to 0+000c
DW_CFA_offset_extended: r72 \(v8\) at cfa-112
DW_CFA_advance_loc: 4 to 0+0010
DW_CFA_offset_extended: r73 \(v9\) at cfa-104
DW_CFA_advance_loc: 4 to 0+0014
DW_CFA_offset_extended: r74 \(v10\) at cfa-96
DW_CFA_offset_extended: r75 \(v11\) at cfa-88
DW_CFA_advance_loc: 4 to 0+0018
DW_CFA_offset_extended: r76 \(v12\) at cfa-80
DW_CFA_offset_extended: r77 \(v13\) at cfa-72
DW_CFA_advance_loc: 4 to 0+001c
DW_CFA_offset_extended: r78 \(v14\) at cfa-64
DW_CFA_offset_extended: r79 \(v15\) at cfa-56
DW_CFA_advance_loc: 8 to 0+0024
DW_CFA_def_cfa_register: r31 \(sp\)
DW_CFA_advance_loc: 4 to 0+0028
DW_CFA_restore_extended: r72 \(v8\)
DW_CFA_advance_loc: 4 to 0+002c
DW_CFA_restore_extended: r73 \(v9\)
DW_CFA_advance_loc: 4 to 0+0030
DW_CFA_restore_extended: r74 \(v10\)
DW_CFA_restore_extended: r75 \(v11\)
DW_CFA_advance_loc: 4 to 0+0034
DW_CFA_restore_extended: r76 \(v12\)
DW_CFA_restore_extended: r77 \(v13\)
DW_CFA_advance_loc: 4 to 0+0038
DW_CFA_restore_extended: r78 \(v14\)
DW_CFA_restore_extended: r79 \(v15\)
DW_CFA_advance_loc: 4 to 0+003c
DW_CFA_restore: r29 \(x29\)
DW_CFA_restore: r30 \(x30\)
DW_CFA_def_cfa_offset: 0
DW_CFA_nop
#pass

2
gas/testsuite/gas/scfi/aarch64/scfi-callee-saved-fp-1.l Normal file
View file

@ -0,0 +1,2 @@
.*Assembler messages:
.*8: Warning: SCFI ignores most user-specified CFI directives

50
gas/testsuite/gas/scfi/aarch64/scfi-callee-saved-fp-1.s Normal file
View file

@ -0,0 +1,50 @@
# Testcase for callee-saved FP registers.
# Uses a combination of str/stp and ldr/ldp
.text
.align 2
.global foo
.type foo, %function
foo:
.cfi_startproc
stp x29, x30, [sp, -128]!
.cfi_def_cfa_offset 128
.cfi_offset 29, -128
.cfi_offset 30, -120
mov x29, sp
.cfi_def_cfa_register 29
str d8, [sp, 16]
.cfi_offset 72, -112
str d9, [sp, 24]
.cfi_offset 73, -104
stp d10, d11, [sp, 32]
.cfi_offset 74, -96
.cfi_offset 75, -88
stp d12, d13, [sp, 48]
.cfi_offset 76, -80
.cfi_offset 77, -72
stp d14, d15, [sp, 64]
.cfi_offset 78, -64
.cfi_offset 79, -56
mov w0, 0
mov sp, x29
.cfi_def_cfa_register 31
ldr d8, [sp, 16]
.cfi_restore 72
ldr d9, [sp, 24]
.cfi_restore 73
ldp d10, d11, [sp, 32]
.cfi_restore 74
.cfi_restore 75
ldp d12, d13, [sp, 48]
.cfi_restore 76
.cfi_restore 77
ldp d14, d15, [sp, 64]
.cfi_restore 78
.cfi_restore 79
ldp x29, x30, [sp], 128
.cfi_restore 29
.cfi_restore 30
.cfi_def_cfa_offset 0
ret
.cfi_endproc
.size foo, .-foo

57
gas/testsuite/gas/scfi/aarch64/scfi-callee-saved-fp-2.d Normal file
View file

@ -0,0 +1,57 @@
#as: --scfi=experimental -W -mbig-endian
#objdump: -Wf
#name: Synthesize CFI for callee-saved FP regs BE II
#...
Contents of the .eh_frame section:
00000000 0+0010 00000000 CIE
Version: 1
Augmentation: "zR"
Code alignment factor: 4
Data alignment factor: -8
Return address column: 30
Augmentation data: 1b
DW_CFA_def_cfa: r31 \(sp\) ofs 0
00000014 0+[0-9a-f]+ 0+0018 FDE cie=00000000 pc=0+0000..0+0040
DW_CFA_advance_loc: 4 to 0+0004
DW_CFA_def_cfa_offset: 256
DW_CFA_offset: r29 \(x29\) at cfa-256
DW_CFA_offset: r30 \(x30\) at cfa-248
DW_CFA_advance_loc: 4 to 0+0008
DW_CFA_def_cfa_register: r29 \(x29\)
DW_CFA_advance_loc: 4 to 0+000c
DW_CFA_offset_extended: r72 \(v8\) at cfa-232
DW_CFA_advance_loc: 4 to 0+0010
DW_CFA_offset_extended: r73 \(v9\) at cfa-216
DW_CFA_advance_loc: 4 to 0+0014
DW_CFA_offset_extended: r74 \(v10\) at cfa-184
DW_CFA_offset_extended: r75 \(v11\) at cfa-168
DW_CFA_advance_loc: 4 to 0+0018
DW_CFA_offset_extended: r76 \(v12\) at cfa-152
DW_CFA_offset_extended: r77 \(v13\) at cfa-136
DW_CFA_advance_loc: 4 to 0+001c
DW_CFA_offset_extended: r78 \(v14\) at cfa-120
DW_CFA_offset_extended: r79 \(v15\) at cfa-104
DW_CFA_advance_loc: 8 to 0+0024
DW_CFA_def_cfa_register: r31 \(sp\)
DW_CFA_advance_loc: 4 to 0+0028
DW_CFA_restore_extended: r72 \(v8\)
DW_CFA_advance_loc: 4 to 0+002c
DW_CFA_restore_extended: r73 \(v9\)
DW_CFA_advance_loc: 4 to 0+0030
DW_CFA_restore_extended: r74 \(v10\)
DW_CFA_restore_extended: r75 \(v11\)
DW_CFA_advance_loc: 4 to 0+0034
DW_CFA_restore_extended: r76 \(v12\)
DW_CFA_restore_extended: r77 \(v13\)
DW_CFA_advance_loc: 4 to 0+0038
DW_CFA_restore_extended: r78 \(v14\)
DW_CFA_restore_extended: r79 \(v15\)
DW_CFA_advance_loc: 4 to 0+003c
DW_CFA_restore: r29 \(x29\)
DW_CFA_restore: r30 \(x30\)
DW_CFA_def_cfa_offset: 0
DW_CFA_nop
#pass

2
gas/testsuite/gas/scfi/aarch64/scfi-callee-saved-fp-2.l Normal file
View file

@ -0,0 +1,2 @@
.*Assembler messages:
.*8: Warning: SCFI ignores most user-specified CFI directives

50
gas/testsuite/gas/scfi/aarch64/scfi-callee-saved-fp-2.s Normal file
View file

@ -0,0 +1,50 @@
# Testcase for callee-saved FP registers.
# Use Q registers
.text
.align 2
.global foo
.type foo, %function
foo:
.cfi_startproc
stp x29, x30, [sp, -256]!
.cfi_def_cfa_offset 256
.cfi_offset 29, -256
.cfi_offset 30, -248
mov x29, sp
.cfi_def_cfa_register 29
str q8, [sp, 16]
.cfi_offset 72, -232
str q9, [sp, 32]
.cfi_offset 73, -216
stp q10, q11, [sp, 64]
.cfi_offset 74, -184
.cfi_offset 75, -168
stp q12, q13, [sp, 96]
.cfi_offset 76, -152
.cfi_offset 77, -136
stp q14, q15, [sp, 128]
.cfi_offset 78, -120
.cfi_offset 79, -104
mov w0, 0
mov sp, x29
.cfi_def_cfa_register 31
ldr q8, [sp, 16]
.cfi_restore 72
ldr q9, [sp, 32]
.cfi_restore 73
ldp q10, q11, [sp, 64]
.cfi_restore 74
.cfi_restore 75
ldp q12, q13, [sp, 96]
.cfi_restore 76
.cfi_restore 77
ldp q14, q15, [sp, 128]
.cfi_restore 78
.cfi_restore 79
ldp x29, x30, [sp], 256
.cfi_restore 29
.cfi_restore 30
.cfi_def_cfa_offset 0
ret
.cfi_endproc
.size foo, .-foo

20
gas/testsuite/gas/scfi/aarch64/scfi-cb-1.d Normal file
View file

@ -0,0 +1,20 @@
#as: --scfi=experimental -W
#objdump: -Wf
#name: Synthesize CFI for comp branch 1
#...
Contents of the .eh_frame section:
0+0000 0+0010 0+0000 CIE
Version: 1
Augmentation: "zR"
Code alignment factor: 4
Data alignment factor: -8
Return address column: 30
Augmentation data: 1b
DW_CFA_def_cfa: r31 \(sp\) ofs 0
0+0014 0+0010 00000018 FDE cie=00000000 pc=0+0000..0+0014
DW_CFA_nop
#pass

2
gas/testsuite/gas/scfi/aarch64/scfi-cb-1.l Normal file
View file

@ -0,0 +1,2 @@
.*Assembler messages:
.*5: Warning: SCFI ignores most user-specified CFI directives

14
gas/testsuite/gas/scfi/aarch64/scfi-cb-1.s Normal file
View file

@ -0,0 +1,14 @@
.text
.global foo
.type foo, %function
foo:
.cfi_startproc
.L7:
add w4, w3, w1
cbnz w4, .L7
cbz w4, .L10
tbnz w0, #31, .L7
.L10:
ret
.cfi_endproc
.size foo, .-foo

31
gas/testsuite/gas/scfi/aarch64/scfi-cfg-1.d Normal file
View file

@ -0,0 +1,31 @@
#as: --scfi=experimental -W
#objdump: -Wf
#name: Synthesize CFI for cfg 1
#...
Contents of the .eh_frame section:
0+0000 0+0010 0+0000 CIE
Version: 1
Augmentation: "zR"
Code alignment factor: 4
Data alignment factor: -8
Return address column: 30
Augmentation data: 1b
DW_CFA_def_cfa: r31 \(sp\) ofs 0
0+0014 0+0020 0+0018 FDE cie=00000000 pc=0+0000..0+0068
DW_CFA_advance_loc: 4 to 0+0004
DW_CFA_def_cfa_offset: 48
DW_CFA_offset: r29 \(x29\) at cfa-48
DW_CFA_offset: r30 \(x30\) at cfa-40
DW_CFA_advance_loc: 4 to 0+0008
DW_CFA_def_cfa_register: r29 \(x29\)
DW_CFA_advance_loc: 92 to 0+0064
DW_CFA_def_cfa_register: r31 \(sp\)
DW_CFA_restore: r29 \(x29\)
DW_CFA_restore: r30 \(x30\)
DW_CFA_def_cfa_offset: 0
DW_CFA_nop
#pass

2
gas/testsuite/gas/scfi/aarch64/scfi-cfg-1.l Normal file
View file

@ -0,0 +1,2 @@
.*Assembler messages:
.*6: Warning: SCFI ignores most user-specified CFI directives

46
gas/testsuite/gas/scfi/aarch64/scfi-cfg-1.s Normal file
View file

@ -0,0 +1,46 @@
# Testcase for forward flow of SCFI information
# and CFG creation as well. This testcase has two backward edges
# (one of which is a loop) and one exit path.
.type foo, %function
foo:
.cfi_startproc
stp x29, x30, [sp, -48]!
.cfi_def_cfa_offset 48
.cfi_offset 29, -48
.cfi_offset 30, -40
mov x29, sp
.cfi_def_cfa_register 29
str x0, [sp, 24]
adrp x0, :got:xyz
str x0, [sp, 40]
b .L7
.L10:
ldr x0, [sp, 40]
ldr x0, [x0]
mov x1, x0
ldr x0, [sp, 24]
bl strcmp
cmp w0, 0
bne .L8
ldr x0, [sp, 40]
ldr w0, [x0, 8]
b .L9
.L8:
ldr x0, [sp, 40]
add x0, x0, 24
str x0, [sp, 40]
.L7:
ldr x0, [sp, 40]
ldr w0, [x0, 8]
cmp w0, 0
bne .L10
mov w0, 0
.L9:
ldp x29, x30, [sp], 48
.cfi_def_cfa_register 31
.cfi_restore 30
.cfi_restore 29
.cfi_def_cfa_offset 0
ret
.cfi_endproc
.size foo, .-foo

40
gas/testsuite/gas/scfi/aarch64/scfi-cfg-2.d Normal file
View file

@ -0,0 +1,40 @@
#as: --scfi=experimental -W
#objdump: -Wf
#name: Synthesize CFI for cfg 2
#...
Contents of the .eh_frame section:
0+0000 0+0010 0+0000 CIE
Version: 1
Augmentation: "zR"
Code alignment factor: 4
Data alignment factor: -8
Return address column: 30
Augmentation data: 1b
DW_CFA_def_cfa: r31 \(sp\) ofs 0
0+0014 0+[0-9a-f]+ 0+0018 FDE cie=00000000 pc=0+0000..0+0028
DW_CFA_advance_loc: 4 to 0+0004
DW_CFA_def_cfa_offset: 48
DW_CFA_offset: r29 \(x29\) at cfa-48
DW_CFA_offset: r30 \(x30\) at cfa-40
DW_CFA_advance_loc: 4 to 0+0008
DW_CFA_def_cfa_register: r29 \(x29\)
DW_CFA_advance_loc: 8 to 0+0010
DW_CFA_remember_state
DW_CFA_advance_loc: 8 to 0+0018
DW_CFA_def_cfa_register: r31 \(sp\)
DW_CFA_restore: r29 \(x29\)
DW_CFA_restore: r30 \(x30\)
DW_CFA_def_cfa_offset: 0
DW_CFA_advance_loc: 4 to 0+001c
DW_CFA_restore_state
DW_CFA_advance_loc: 8 to 0+0024
DW_CFA_def_cfa_register: r31 \(sp\)
DW_CFA_restore: r29 \(x29\)
DW_CFA_restore: r30 \(x30\)
DW_CFA_def_cfa_offset: 0
DW_CFA_nop
#pass

2
gas/testsuite/gas/scfi/aarch64/scfi-cfg-2.l Normal file
View file

@ -0,0 +1,2 @@
.*Assembler messages:
.*13: Warning: SCFI ignores most user-specified CFI directives

42
gas/testsuite/gas/scfi/aarch64/scfi-cfg-2.s Normal file
View file

@ -0,0 +1,42 @@
# Testcase for backward flow of SCFI state.
# The cfg has two exit paths, with epilogue duplicated in
# the two.
#
# SCFI must synthesize the remember_state / restore_state pair.
# Note how SCFI does not necessary generate the least number of
# CFI directives (.cfi_remember_state can possibly be clubbed
# together with other immediately following CFI directives).
# This is not a correctness issue, however.
.global foo
.type foo, %function
foo:
.cfi_startproc
stp x29, x30, [sp, -48]!
.cfi_def_cfa_offset 48
.cfi_offset 29, -48
.cfi_offset 30, -40
mov x29, sp
.cfi_def_cfa_register 29
cmp w4, w19
bge .L1
.L2:
.cfi_remember_state
bl bar
ldp x29, x30, [sp], 48
.cfi_def_cfa_register 31
.cfi_restore 29
.cfi_restore 30
.cfi_def_cfa_offset 0
ret
.L1:
.cfi_restore_state
cbz w3, .L2
ldp x29, x30, [sp], 48
.cfi_def_cfa_register 31
.cfi_restore 29
.cfi_restore 30
.cfi_def_cfa_offset 0
ret
.cfi_endproc
.size foo, .-foo

32
gas/testsuite/gas/scfi/aarch64/scfi-cfg-3.d Normal file
View file

@ -0,0 +1,32 @@
#as: --scfi=experimental -W
#objdump: -Wf
#name: Synthesize CFI for cfg 3
#...
Contents of the .eh_frame section:
0+0000 0+0010 0+0000 CIE
Version: 1
Augmentation: "zR"
Code alignment factor: 4
Data alignment factor: -8
Return address column: 30
Augmentation data: 1b
DW_CFA_def_cfa: r31 \(sp\) ofs 0
0+0014 0+0020 0+0018 FDE cie=00000000 pc=0+0000..0+002c
DW_CFA_advance_loc: 4 to 0+0004
DW_CFA_def_cfa_offset: 32
DW_CFA_offset: r29 \(x29\) at cfa-32
DW_CFA_offset: r30 \(x30\) at cfa-24
DW_CFA_advance_loc: 4 to 0+0008
DW_CFA_def_cfa_register: r29 \(x29\)
DW_CFA_advance_loc: 32 to 0+0028
DW_CFA_def_cfa_register: r31 \(sp\)
DW_CFA_restore: r29 \(x29\)
DW_CFA_restore: r30 \(x30\)
DW_CFA_def_cfa_offset: 0
DW_CFA_nop
DW_CFA_nop
#pass

2
gas/testsuite/gas/scfi/aarch64/scfi-cfg-3.l Normal file
View file

@ -0,0 +1,2 @@
.*Assembler messages:
.*9: Warning: SCFI ignores most user-specified CFI directives

34
gas/testsuite/gas/scfi/aarch64/scfi-cfg-3.s Normal file
View file

@ -0,0 +1,34 @@
# Testcase for cfg creation.
# There is at least one bb here with a single GINSN_TYPE_SYMBOL instruction
# for a user-defined label. This ginsn is visited in the fallthrough path of
# another bb.
.text
.global main
.type main, %function
main:
.cfi_startproc
stp x29, x30, [sp, -32]!
.cfi_def_cfa_offset 32
.cfi_offset 29, -32
.cfi_offset 30, -24
mov x29, sp
.cfi_def_cfa_register 29
cmp w0, 0
bne .L2
# ldr x0, [sp, 24]
# bl fclose
cmp w0, 0
beq .L3
.L2:
mov w0, 1
b .L5
.L3:
mov w0, 0
.L5:
ldp x29, x30, [sp], 32
.cfi_def_cfa_register 31
.cfi_restore 29
.cfi_restore 30
.cfi_def_cfa_offset 0
ret
.cfi_endproc

41
gas/testsuite/gas/scfi/aarch64/scfi-cfg-4.d Normal file
View file

@ -0,0 +1,41 @@
#as: --scfi=experimental -W
#objdump: -Wf
#name: Synthesize CFI for cfg 4
#...
Contents of the .eh_frame section:
0+0000 0+0010 0+0000 CIE
Version: 1
Augmentation: "zR"
Code alignment factor: 4
Data alignment factor: -8
Return address column: 30
Augmentation data: 1b
DW_CFA_def_cfa: r31 \(sp\) ofs 0
0+0014 0+[0-9a-f]+ 0+0018 FDE cie=00000000 pc=0+0000..0+002c
DW_CFA_advance_loc: 4 to 0+0004
DW_CFA_def_cfa_offset: 32
DW_CFA_offset: r29 \(x29\) at cfa-32
DW_CFA_offset: r30 \(x30\) at cfa-24
DW_CFA_advance_loc: 4 to 0+0008
DW_CFA_def_cfa_register: r29 \(x29\)
DW_CFA_advance_loc: 8 to 0+0010
DW_CFA_offset: r19 \(x19\) at cfa-16
DW_CFA_advance_loc: 4 to 0+0014
DW_CFA_remember_state
DW_CFA_advance_loc: 4 to 0+0018
DW_CFA_restore: r19 \(x19\)
DW_CFA_advance_loc: 8 to 0+0020
DW_CFA_def_cfa_register: r31 \(sp\)
DW_CFA_restore: r29 \(x29\)
DW_CFA_restore: r30 \(x30\)
DW_CFA_def_cfa_offset: 0
DW_CFA_advance_loc: 4 to 0+0024
DW_CFA_restore_state
DW_CFA_advance_loc: 4 to 0+0028
DW_CFA_restore: r19 \(x19\)
DW_CFA_nop
#pass

2
gas/testsuite/gas/scfi/aarch64/scfi-cfg-4.l Normal file
View file

@ -0,0 +1,2 @@
.*Assembler messages:
.*7: Warning: SCFI ignores most user-specified CFI directives

41
gas/testsuite/gas/scfi/aarch64/scfi-cfg-4.s Normal file
View file

@ -0,0 +1,41 @@
# Testcase for forward flow of SCFI information.
# This testcase has two paths landing at the exit basic block,
# where only one of the exit paths has a save/restore of x19
# (while the other does not).
.type foo, %function
foo:
.cfi_startproc
stp x29, x30, [sp, -32]!
.cfi_def_cfa_offset 32
.cfi_offset 29, -32
.cfi_offset 30, -24
mov x29, sp
.cfi_def_cfa_register 29
# do some work ...
cbz x0, .L2
str x19, [sp, 16]
.cfi_offset 19, -16
# do some other work ...
cbz w0, .L3
ldr x19, [sp, 16]
.cfi_restore 19
.L2:
mov w0, 1
.L1:
ldp x29, x30, [sp], 32
.cfi_def_cfa_register 31
.cfi_restore 30
.cfi_restore 29
.cfi_def_cfa_offset 0
ret
.L3:
.cfi_def_cfa_offset 32
.cfi_offset 19, -16
.cfi_offset 29, -32
.cfi_offset 30, -24
# do yet some other work before return
ldr x19, [sp, 16]
.cfi_restore 19
b .L1
.cfi_endproc
.size foo, .-foo

20
gas/testsuite/gas/scfi/aarch64/scfi-cond-br-1.d Normal file
View file

@ -0,0 +1,20 @@
#as: --scfi=experimental -W
#objdump: -Wf
#name: Synthesize CFI for conditional br 1
#...
Contents of the .eh_frame section:
0+0000 0+0010 0+0000 CIE
Version: 1
Augmentation: "zR"
Code alignment factor: 4
Data alignment factor: -8
Return address column: 30
Augmentation data: 1b
DW_CFA_def_cfa: r31 \(sp\) ofs 0
0+0014 0+0010 00000018 FDE cie=00000000 pc=0+0000..0+0010
DW_CFA_nop
#pass

2
gas/testsuite/gas/scfi/aarch64/scfi-cond-br-1.l Normal file
View file

@ -0,0 +1,2 @@
.*Assembler messages:
.*6: Warning: SCFI ignores most user-specified CFI directives

13
gas/testsuite/gas/scfi/aarch64/scfi-cond-br-1.s Normal file
View file

@ -0,0 +1,13 @@
.text
.align 2
.global foo
.type foo, %function
foo:
.cfi_startproc
bge .L10
ble .L10
bne .L10
.L10:
ret
.cfi_endproc
.size foo, .-foo

2
gas/testsuite/gas/scfi/aarch64/scfi-diag-1.l Normal file
View file

@ -0,0 +1,2 @@
.*Assembler messages:
.*5: Warning: SCFI: ignored probable save/restore op with reg offset

6
gas/testsuite/gas/scfi/aarch64/scfi-diag-1.s Normal file
View file

@ -0,0 +1,6 @@
.text
.globl foo
.type foo, @function
foo:
str x19, [sp, x1]
.size foo, .-foo

3
gas/testsuite/gas/scfi/aarch64/scfi-diag-2.l Normal file
View file

@ -0,0 +1,3 @@
.*Assembler messages:
.*7: Warning: SCFI ignores most user-specified CFI directives
.*16: Warning: GINSN: found unreachable code in func 'foo'

25
gas/testsuite/gas/scfi/aarch64/scfi-diag-2.s Normal file
View file

@ -0,0 +1,25 @@
# Testcase that triggers a diagnostic for unreachable code for
# the block of code after label .L2. This also serves as a testcase
# for cfg creation, as the said code block should not have been
# included in the CFG (and hence the warning).
.type foo, %function
foo:
.cfi_startproc
ldr w1, [x0]
cmp w1, 8
stp x19, x20, [sp, 16]
.cfi_offset 19, 16
.cfi_offset 20, 24
b .L1
.L2:
mov w0, w1
ret
.L1:
mov w0, w1
ldp x19, x20, [sp, 16]
.cfi_restore 19
.cfi_restore 20
.cfi_def_cfa_offset 0
ret
.cfi_endproc
.size foo, .-foo

3
gas/testsuite/gas/scfi/aarch64/scfi-diag-3.l Normal file
View file

@ -0,0 +1,3 @@
.*Assembler messages:
.*6: Error: SCFI: 0x14000000 op with non-zero addend to sym not supported
.*6: Error: SCFI: unhandled op 0x14000000 may cause incorrect CFI

8
gas/testsuite/gas/scfi/aarch64/scfi-diag-3.s Normal file
View file

@ -0,0 +1,8 @@
# Testcase with a branch instruction with symbol and an addend
# Such insns make CFG creation difficult and hence make the
# function ineligible for SCFI.
.type foo, %function
foo:
b symbol+1
ret
.size foo, .-foo

59
gas/testsuite/gas/scfi/aarch64/scfi-ldrp-1.d Normal file
View file

@ -0,0 +1,59 @@
#as: --scfi=experimental -W
#objdump: -Wf
#name: Synthesize CFI for ldp ldr instructions
#...
Contents of the .eh_frame section:
00000000 0+0010 00000000 CIE
Version: 1
Augmentation: "zR"
Code alignment factor: 4
Data alignment factor: -8
Return address column: 30
Augmentation data: 1b
DW_CFA_def_cfa: r31 \(sp\) ofs 0
00000014 0+0048 00000018 FDE cie=00000000 pc=0+0000..0+0040
DW_CFA_advance_loc: 4 to 0+0004
DW_CFA_def_cfa_offset: 128
DW_CFA_offset: r29 \(x29\) at cfa-128
DW_CFA_offset: r30 \(x30\) at cfa-120
DW_CFA_advance_loc: 4 to 0+0008
DW_CFA_def_cfa_register: r29 \(x29\)
DW_CFA_advance_loc: 4 to 0+000c
DW_CFA_offset: r19 \(x19\) at cfa-112
DW_CFA_offset: r20 \(x20\) at cfa-104
DW_CFA_advance_loc: 4 to 0+0010
DW_CFA_offset: r21 \(x21\) at cfa-96
DW_CFA_offset: r22 \(x22\) at cfa-88
DW_CFA_advance_loc: 4 to 0+0014
DW_CFA_offset: r23 \(x23\) at cfa-80
DW_CFA_offset: r24 \(x24\) at cfa-72
DW_CFA_advance_loc: 4 to 0+0018
DW_CFA_offset: r25 \(x25\) at cfa-64
DW_CFA_offset: r26 \(x26\) at cfa-56
DW_CFA_advance_loc: 4 to 0+001c
DW_CFA_offset: r27 \(x27\) at cfa-48
DW_CFA_advance_loc: 8 to 0+0024
DW_CFA_def_cfa_register: r31 \(sp\)
DW_CFA_advance_loc: 4 to 0+0028
DW_CFA_restore: r19 \(x19\)
DW_CFA_restore: r20 \(x20\)
DW_CFA_advance_loc: 4 to 0+002c
DW_CFA_restore: r21 \(x21\)
DW_CFA_restore: r22 \(x22\)
DW_CFA_advance_loc: 4 to 0+0030
DW_CFA_restore: r23 \(x23\)
DW_CFA_restore: r24 \(x24\)
DW_CFA_advance_loc: 4 to 0+0034
DW_CFA_restore: r25 \(x25\)
DW_CFA_restore: r26 \(x26\)
DW_CFA_advance_loc: 4 to 0+0038
DW_CFA_restore: r27 \(x27\)
DW_CFA_advance_loc: 4 to 0+003c
DW_CFA_restore: r29 \(x29\)
DW_CFA_restore: r30 \(x30\)
DW_CFA_def_cfa_offset: 0
DW_CFA_nop
#pass

2
gas/testsuite/gas/scfi/aarch64/scfi-ldrp-1.l Normal file
View file

@ -0,0 +1,2 @@
.*Assembler messages:
.*8: Warning: SCFI ignores most user-specified CFI directives

52
gas/testsuite/gas/scfi/aarch64/scfi-ldrp-1.s Normal file
View file

@ -0,0 +1,52 @@
# Testcase for various ldp / ldr instructions.
# This test also serves for checking callee-saved regs.
.text
.align 2
.global foo
.type foo, %function
foo:
.cfi_startproc
stp x29, x30, [sp, -128]!
.cfi_def_cfa_offset 128
.cfi_offset 29, -128
.cfi_offset 30, -120
mov x29, sp
.cfi_def_cfa_register 29
stp x19, x20, [sp, 16]
.cfi_offset 19, -112
.cfi_offset 20, -104
stp x21, x22, [sp, 32]
.cfi_offset 21, -96
.cfi_offset 22, -88
stp x23, x24, [sp, 48]
.cfi_offset 23, -80
.cfi_offset 24, -72
stp x25, x26, [sp, 64]
.cfi_offset 25, -64
.cfi_offset 26, -56
str x27, [sp, 80]
.cfi_offset 27, -48
mov w0, 0
mov sp, x29
.cfi_def_cfa_register 31
ldp x19, x20, [sp, 16]
.cfi_restore 19
.cfi_restore 20
ldp x21, x22, [sp, 32]
.cfi_restore 21
.cfi_restore 22
ldp x23, x24, [sp, 48]
.cfi_restore 23
.cfi_restore 24
ldp x25, x26, [sp, 64]
.cfi_restore 25
.cfi_restore 26
ldr x27, [sp, 80]
.cfi_restore 27
ldp x29, x30, [sp], 128
.cfi_restore 29
.cfi_restore 30
.cfi_def_cfa_offset 0
ret
.cfi_endproc
.size foo, .-foo

33
gas/testsuite/gas/scfi/aarch64/scfi-ldrp-2.d Normal file
View file

@ -0,0 +1,33 @@
#as: --scfi=experimental -W
#objdump: -Wf
#name: Synthesize CFI for ldr insns 2
#...
Contents of the .eh_frame section:
00000000 0+0010 00000000 CIE
Version: 1
Augmentation: "zR"
Code alignment factor: 4
Data alignment factor: -8
Return address column: 30
Augmentation data: 1b
DW_CFA_def_cfa: r31 \(sp\) ofs 0
00000014 0+[0-9a-f]+ 00000018 FDE cie=00000000 pc=0+0000..0+0018
DW_CFA_advance_loc: 4 to 0+0004
DW_CFA_def_cfa_offset: 128
DW_CFA_offset: r29 \(x29\) at cfa-128
DW_CFA_offset: r30 \(x30\) at cfa-120
DW_CFA_advance_loc: 4 to 0+0008
DW_CFA_def_cfa_register: r29 \(x29\)
DW_CFA_advance_loc: 4 to 0+000c
DW_CFA_def_cfa_register: r31 \(sp\)
DW_CFA_advance_loc: 4 to 0+0010
DW_CFA_restore: r29 \(x29\)
DW_CFA_def_cfa_offset: 120
DW_CFA_advance_loc: 4 to 0+0014
DW_CFA_restore: r30 \(x30\)
DW_CFA_def_cfa_offset: 0
DW_CFA_nop
#pass

2
gas/testsuite/gas/scfi/aarch64/scfi-ldrp-2.l Normal file
View file

@ -0,0 +1,2 @@
.*Assembler messages:
.*7: Warning: SCFI ignores most user-specified CFI directives

26
gas/testsuite/gas/scfi/aarch64/scfi-ldrp-2.s Normal file
View file

@ -0,0 +1,26 @@
# Testcase for various ldp / ldr instructions
.text
.align 2
.global foo
.type foo, %function
foo:
.cfi_startproc
stp x29, x30, [sp, -128]!
.cfi_def_cfa_offset 128
.cfi_offset 29, -128
.cfi_offset 30, -120
mov x29, sp
.cfi_def_cfa_register 29
mov sp, x29
.cfi_def_cfa_register 31
# Post-indexed ldr
ldr x29, [sp], 8
.cfi_restore 29
.cfi_def_cfa_offset 120
# Post-indexed ldr
ldr x30, [sp], 120
.cfi_restore 30
.cfi_def_cfa_offset 0
ret
.cfi_endproc
.size foo, .-foo

39
gas/testsuite/gas/scfi/aarch64/scfi-ldstnap-1.d Normal file
View file

@ -0,0 +1,39 @@
#as: --scfi=experimental -W
#objdump: -Wf
#name: Synthesize CFI for ldst no-allocate pair
#...
Contents of the .eh_frame section:
00000000 0+0010 00000000 CIE
Version: 1
Augmentation: "zR"
Code alignment factor: 4
Data alignment factor: -8
Return address column: 30
Augmentation data: 1b
DW_CFA_def_cfa: r31 \(sp\) ofs 0
00000014 0+[0-9a-f]+ 00000018 FDE cie=00000000 pc=0+0000..0+0020
DW_CFA_advance_loc: 4 to 0+0004
DW_CFA_def_cfa_offset: 128
DW_CFA_offset: r29 \(x29\) at cfa-128
DW_CFA_offset: r30 \(x30\) at cfa-120
DW_CFA_advance_loc: 4 to 0+0008
DW_CFA_def_cfa_register: r29 \(x29\)
DW_CFA_advance_loc: 4 to 0+000c
DW_CFA_def_cfa_register: r31 \(sp\)
DW_CFA_advance_loc: 4 to 0+0010
DW_CFA_offset: r19 \(x19\) at cfa-112
DW_CFA_offset: r20 \(x20\) at cfa-104
DW_CFA_advance_loc: 4 to 0+0014
DW_CFA_restore: r19 \(x19\)
DW_CFA_restore: r20 \(x20\)
DW_CFA_advance_loc: 4 to 0+0018
DW_CFA_restore: r29 \(x29\)
DW_CFA_def_cfa_offset: 120
DW_CFA_advance_loc: 4 to 0+001c
DW_CFA_restore: r30 \(x30\)
DW_CFA_def_cfa_offset: 0
DW_CFA_nop
#pass

2
gas/testsuite/gas/scfi/aarch64/scfi-ldstnap-1.l Normal file
View file

@ -0,0 +1,2 @@
.*Assembler messages:
.*7: Warning: SCFI ignores most user-specified CFI directives

30
gas/testsuite/gas/scfi/aarch64/scfi-ldstnap-1.s Normal file
View file

@ -0,0 +1,30 @@
# Testcase for various ldnp / stnp instructions
.text
.align 2
.global foo
.type foo, %function
foo:
.cfi_startproc
stp x29, x30, [sp, -128]!
.cfi_def_cfa_offset 128
.cfi_offset 29, -128
.cfi_offset 30, -120
mov x29, sp
.cfi_def_cfa_register 29
mov sp, x29
.cfi_def_cfa_register 31
stp x19, x20, [sp, 16]
.cfi_offset 19, -112
.cfi_offset 20, -104
ldp x19, x20, [sp, 16]
.cfi_restore 19
.cfi_restore 20
ldr x29, [sp], 8
.cfi_restore 29
.cfi_def_cfa_offset 120
ldr x30, [sp], 120
.cfi_restore 30
.cfi_def_cfa_offset 0
ret
.cfi_endproc
.size foo, .-foo

39
gas/testsuite/gas/scfi/aarch64/scfi-strp-1.d Normal file
View file

@ -0,0 +1,39 @@
#as: --scfi=experimental -W
#objdump: -Wf
#name: Synthesize CFI for str stp insns 1
#...
Contents of the .eh_frame section:
00000000 0+0010 00000000 CIE
Version: 1
Augmentation: "zR"
Code alignment factor: 4
Data alignment factor: -8
Return address column: 30
Augmentation data: 1b
DW_CFA_def_cfa: r31 \(sp\) ofs 0
00000014 0+0030 00000018 FDE cie=00000000 pc=0+0000..0+002c
DW_CFA_advance_loc: 4 to 0+0004
DW_CFA_def_cfa_offset: 128
DW_CFA_offset: r29 \(x29\) at cfa-128
DW_CFA_offset: r30 \(x30\) at cfa-120
DW_CFA_advance_loc: 4 to 0+0008
DW_CFA_def_cfa_register: r29 \(x29\)
DW_CFA_advance_loc: 4 to 0+000c
DW_CFA_offset: r19 \(x19\) at cfa-112
DW_CFA_offset: r20 \(x20\) at cfa-104
DW_CFA_advance_loc: 4 to 0+0010
DW_CFA_offset: r21 \(x21\) at cfa-96
DW_CFA_offset: r22 \(x22\) at cfa-88
DW_CFA_advance_loc: 4 to 0+0014
DW_CFA_offset: r23 \(x23\) at cfa-80
DW_CFA_offset: r24 \(x24\) at cfa-72
DW_CFA_advance_loc: 4 to 0+0018
DW_CFA_offset: r25 \(x25\) at cfa-64
DW_CFA_offset: r26 \(x26\) at cfa-56
DW_CFA_advance_loc: 4 to 0+001c
DW_CFA_offset: r27 \(x27\) at cfa-48
DW_CFA_nop
#pass

2
gas/testsuite/gas/scfi/aarch64/scfi-strp-1.l Normal file
View file

@ -0,0 +1,2 @@
.*Assembler messages:
.*6: Warning: SCFI ignores most user-specified CFI directives

37
gas/testsuite/gas/scfi/aarch64/scfi-strp-1.s Normal file
View file

@ -0,0 +1,37 @@
## Testcase with a variety of str/stp instructions
.text
.globl foo
.type foo, @function
foo:
.cfi_startproc
# Pre-indexed addressing is like offset addressing, except that
# the base pointer is updated as a result of the instruction.
stp x29, x30, [sp, -128]!
.cfi_def_cfa_offset 128
.cfi_offset 29, -128
.cfi_offset 30, -120
mov x29, sp
.cfi_def_cfa_register 29
# Offset addressing mode is when ann offset can be applied optionally to the
# base address.
stp x19, x20, [sp, 16]
.cfi_offset 19, -112
.cfi_offset 20, -104
stp x21, x22, [sp, 32]
.cfi_offset 21, -96
.cfi_offset 22, -88
stp x23, x24, [sp, 48]
.cfi_offset 23, -80
.cfi_offset 24, -72
stp x25, x26, [sp, 64]
.cfi_offset 25, -64
.cfi_offset 26, -56
str x27, [sp, 80]
.cfi_offset 27, -48
# Stores non callee-saved register on stack.
str w0, [x29, 124]
str wzr, [x29, 120]
str w0, [x29, 120]
ret
.cfi_endproc
.size foo, .-foo

35
gas/testsuite/gas/scfi/aarch64/scfi-strp-2.d Normal file
View file

@ -0,0 +1,35 @@
#as: --scfi=experimental -W
#objdump: -Wf
#name: Synthesize CFI for str insns 2
#...
Contents of the .eh_frame section:
00000000 0+0010 00000000 CIE
Version: 1
Augmentation: "zR"
Code alignment factor: 4
Data alignment factor: -8
Return address column: 30
Augmentation data: 1b
DW_CFA_def_cfa: r31 \(sp\) ofs 0
00000014 0+0028 00000018 FDE cie=00000000 pc=0+0000..0+001c
DW_CFA_advance_loc: 4 to 0+0004
DW_CFA_def_cfa_offset: 128
DW_CFA_offset: r29 \(x29\) at cfa-128
DW_CFA_offset: r30 \(x30\) at cfa-120
DW_CFA_advance_loc: 4 to 0+0008
DW_CFA_def_cfa_register: r29 \(x29\)
DW_CFA_advance_loc: 4 to 0+000c
DW_CFA_offset: r27 \(x27\) at cfa-128
DW_CFA_advance_loc: 4 to 0+0010
DW_CFA_def_cfa_register: r31 \(sp\)
DW_CFA_advance_loc: 4 to 0+0014
DW_CFA_restore: r29 \(x29\)
DW_CFA_def_cfa_offset: 120
DW_CFA_advance_loc: 4 to 0+0018
DW_CFA_restore: r30 \(x30\)
DW_CFA_def_cfa_offset: 0
DW_CFA_nop
#pass

2
gas/testsuite/gas/scfi/aarch64/scfi-strp-2.l Normal file
View file

@ -0,0 +1,2 @@
.*Assembler messages:
.*7: Warning: SCFI ignores most user-specified CFI directives

30
gas/testsuite/gas/scfi/aarch64/scfi-strp-2.s Normal file
View file

@ -0,0 +1,30 @@
# Testcase for a variety of stp/str including a post-indexed store
.text
.align 2
.global foo
.type foo, %function
foo:
.cfi_startproc
stp x29, x30, [sp, -128]!
.cfi_def_cfa_offset 128
.cfi_offset 29, -128
.cfi_offset 30, -120
mov x29, sp
.cfi_def_cfa_register 29
# post-indexed store, a stack corrupting one which over-writes
# x29! Only for testing purposes for now
# This does not generate a .cfi_def_cfa_offset 208 because
# CFA is REG_FP based
str x27, [sp], 80
.cfi_offset 27, -128
mov sp, x29
.cfi_def_cfa_register 31
ldr x29, [sp], 8
.cfi_restore 29
.cfi_def_cfa_offset 120
ldr x30, [sp], 120
.cfi_restore 30
.cfi_def_cfa_offset 0
ret
.cfi_endproc
.size foo, .-foo

4
gas/testsuite/gas/scfi/aarch64/scfi-unsupported-1.l Normal file
View file

@ -0,0 +1,4 @@
.*Assembler messages:
.*7: Warning: SCFI ignores most user-specified CFI directives
.*9: Error: SCFI: unsupported stack manipulation pattern
.*31: Error: SCFI: forward pass failed for func 'foo'

31
gas/testsuite/gas/scfi/aarch64/scfi-unsupported-1.s Normal file
View file

@ -0,0 +1,31 @@
# Testcase where immediate used for stack allocation is a wide
# one. Since SCFI does not currently have any data-flow
# capabilities, this is currently not supported.
.global foo
.type foo, %function
foo:
.cfi_startproc
mov x16, 4384
sub sp, sp, x16
.cfi_def_cfa_offset 4384
stp x29, x30, [sp]
.cfi_offset 29, -4384
.cfi_offset 30, -4376
mov x29, sp
str x0, [sp, 24]
str x1, [sp, 16]
add x0, sp, 4096
add x0, x0, 112
bl bar
.L1:
str xzr, [sp, 4376]
.L2:
ldp x29, x30, [sp]
mov x16, 4384
add sp, sp, x16
.cfi_restore 29
.cfi_restore 30
.cfi_def_cfa_offset 0
ret
.cfi_endproc
.size foo, .-foo

2
gas/testsuite/gas/scfi/aarch64/scfi-unsupported-2.l Normal file
View file

@ -0,0 +1,2 @@
.*Assembler messages:
.*7: Error: SCFI: unhandled op 0xe5e0e000 may cause incorrect CFI

8
gas/testsuite/gas/scfi/aarch64/scfi-unsupported-2.s Normal file
View file

@ -0,0 +1,8 @@
# Testcase with an SVE instruction with Z register usage
# of a callee-saved register. Currently these are not handled
# and the SCFI machinery must error out.
.arch armv8-a+sve
.type foo, %function
foo:
st1d z8.d, p2, [sp, #1, mul vl]
.size foo, .-foo