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gas: sframe: testsuite: add testcase for .cfi_b_key_frame

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This is actually a composite test that checks SFrame unwind information
generation for both the .cfi_negate_ra_state and .cfi_b_key_frame
directives on aarch64.

ChangeLog:

	* testsuite/gas/cfi-sframe/cfi-sframe-aarch64-pac-ab-key-1.d:
	New test.
	* testsuite/gas/cfi-sframe/cfi-sframe-aarch64-pac-ab-key-1.s:
	Likewise.
	* testsuite/gas/cfi-sframe/cfi-sframe.exp: Run new test.
This commit is contained in:
Indu Bhagat
2022-12-22 09:57:52 -08:00
parent 95e829affb
commit d429702d9e
3 changed files with 64 additions and 0 deletions
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27
gas/testsuite/gas/cfi-sframe/cfi-sframe-aarch64-pac-ab-key-1.d Normal file
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@ -0,0 +1,27 @@
#as: --gsframe
#objdump: --sframe=.sframe
#name: SFrame cfi_b_key_frame and cfi_negate_ra_state composite test
#...
Contents of the SFrame section .sframe:
Header :
Version: SFRAME_VERSION_1
Flags: NONE
Num FDEs: 2
Num FREs: 6
Function Index :
func idx \[0\]: pc = 0x0, size = 12 bytes
STARTPC + CFA + FP + RA +
0+0000 +sp\+0 +u +u +
0+0004 +sp\+0 +u +u\[s\] +
0+0008 +sp\+16 +c-16 +c-8\[s\] +
func idx \[1\]: pc = 0x0, size = 20 bytes, pauth = B key
STARTPC + CFA + FP + RA +
0+0000 +sp\+0 +u +u +
0+0004 +sp\+0 +u +u\[s\] +
0+0008 +sp\+16 +c-16 +c-8\[s\] +
#pass

36
gas/testsuite/gas/cfi-sframe/cfi-sframe-aarch64-pac-ab-key-1.s Normal file
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@ -0,0 +1,36 @@
## same as aarch64/pac_ab_key.s
.arch armv8-a
.text
.align 2
.global _Z5foo_av
.type _Z5foo_av, %function
_Z5foo_av:
.LFB0:
.cfi_startproc
hint 25 // paciasp
.cfi_window_save
stp x29, x30, [sp, -16]!
.cfi_def_cfa_offset 16
.cfi_offset 29, -16
.cfi_offset 30, -8
ret
.cfi_endproc
.LFE0:
.size _Z5foo_av, .-_Z5foo_av
.align 2
.global _Z5foo_bv
.type _Z5foo_bv, %function
_Z5foo_bv:
.LFB1:
.cfi_startproc
.cfi_b_key_frame
hint 27 // pacibsp
.cfi_window_save
stp x29, x30, [sp, -16]!
.cfi_def_cfa_offset 16
.cfi_offset 29, -16
.cfi_offset 30, -8
nop
nop
ret
.cfi_endproc

1
gas/testsuite/gas/cfi-sframe/cfi-sframe.exp
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@ -97,4 +97,5 @@ if { [istarget "x86_64-*-*"] && [gas_sframe_check] } then {
if { [istarget "aarch64*-*-*"] && [gas_sframe_check] } then {
run_dump_test "cfi-sframe-aarch64-1"
run_dump_test "cfi-sframe-aarch64-2"
run_dump_test "cfi-sframe-aarch64-pac-ab-key-1"
}