diff options
Diffstat (limited to 'gas/testsuite')
29 files changed, 533 insertions, 0 deletions
diff --git a/gas/testsuite/gas/cfi-sframe/cfi-sframe-aarch64-1.d b/gas/testsuite/gas/cfi-sframe/cfi-sframe-aarch64-1.d new file mode 100644 index 0000000..aeefbc9 --- /dev/null +++ b/gas/testsuite/gas/cfi-sframe/cfi-sframe-aarch64-1.d @@ -0,0 +1,20 @@ +#as: +#objdump: --sframe=.sframe +#name: SFrame generation on aarch64 +#... +Contents of the SFrame section .sframe: + Header : + + Version: SFRAME_VERSION_1 + Flags: NONE + Num FDEs: 1 + Num FREs: 3 + + Function Index : + + func idx \[0\]: pc = 0x0, size = 80 bytes + STARTPC +CFA +FP +RA + + 0+0000 +sp\+0 +u +u + + 0+0004 +sp\+144 +u +u + + 0+004c +sp\+0 +u +u + +#pass diff --git a/gas/testsuite/gas/cfi-sframe/cfi-sframe-aarch64-1.s b/gas/testsuite/gas/cfi-sframe/cfi-sframe-aarch64-1.s new file mode 100644 index 0000000..082c8a3 --- /dev/null +++ b/gas/testsuite/gas/cfi-sframe/cfi-sframe-aarch64-1.s @@ -0,0 +1,61 @@ + .cfi_sections .sframe + .cfi_startproc + stp x19, x20, [sp, -144]! + .cfi_def_cfa_offset 144 + .cfi_offset 19, -144 + .cfi_offset 20, -136 + stp x21, x22, [sp, 16] + stp x23, x24, [sp, 32] + stp x25, x26, [sp, 48] + stp x27, x28, [sp, 64] + stp d8, d9, [sp, 80] + stp d10, d11, [sp, 96] + stp d12, d13, [sp, 112] + stp d14, d15, [sp, 128] + .cfi_offset 21, -128 + .cfi_offset 22, -120 + .cfi_offset 23, -112 + .cfi_offset 24, -104 + .cfi_offset 25, -96 + .cfi_offset 26, -88 + .cfi_offset 27, -80 + .cfi_offset 28, -72 + .cfi_offset 72, -64 + .cfi_offset 73, -56 + .cfi_offset 74, -48 + .cfi_offset 75, -40 + .cfi_offset 76, -32 + .cfi_offset 77, -24 + .cfi_offset 78, -16 + .cfi_offset 79, -8 + nop + ldp x21, x22, [sp, 16] + ldp x23, x24, [sp, 32] + ldp x25, x26, [sp, 48] + ldp x27, x28, [sp, 64] + ldp d8, d9, [sp, 80] + ldp d10, d11, [sp, 96] + ldp d12, d13, [sp, 112] + ldp d14, d15, [sp, 128] + ldp x19, x20, [sp], 144 + .cfi_restore 20 + .cfi_restore 19 + .cfi_restore 78 + .cfi_restore 79 + .cfi_restore 76 + .cfi_restore 77 + .cfi_restore 74 + .cfi_restore 75 + .cfi_restore 72 + .cfi_restore 73 + .cfi_restore 27 + .cfi_restore 28 + .cfi_restore 25 + .cfi_restore 26 + .cfi_restore 23 + .cfi_restore 24 + .cfi_restore 21 + .cfi_restore 22 + .cfi_def_cfa_offset 0 + ret + .cfi_endproc diff --git a/gas/testsuite/gas/cfi-sframe/cfi-sframe-common-1.d b/gas/testsuite/gas/cfi-sframe/cfi-sframe-common-1.d new file mode 100644 index 0000000..7d97383 --- /dev/null +++ b/gas/testsuite/gas/cfi-sframe/cfi-sframe-common-1.d @@ -0,0 +1,17 @@ +#as: --gsframe +#objdump: --sframe=.sframe +#name: SFrame generation using CFI directive .cfi_sections +#... +Contents of the SFrame section .sframe: + + Header : + + Version: SFRAME_VERSION_1 + Flags: NONE + Num FDEs: 1 + Num FREs: 1 + + Function Index : + func idx \[0\]: pc = 0x0, size = 0 bytes + STARTPC + CFA + FP + RA + +#pass diff --git a/gas/testsuite/gas/cfi-sframe/cfi-sframe-common-1.s b/gas/testsuite/gas/cfi-sframe/cfi-sframe-common-1.s new file mode 100644 index 0000000..ac9c6ca --- /dev/null +++ b/gas/testsuite/gas/cfi-sframe/cfi-sframe-common-1.s @@ -0,0 +1,3 @@ + .cfi_sections .sframe + .cfi_startproc + .cfi_endproc diff --git a/gas/testsuite/gas/cfi-sframe/cfi-sframe-common-2.d b/gas/testsuite/gas/cfi-sframe/cfi-sframe-common-2.d new file mode 100644 index 0000000..fc7d5c4 --- /dev/null +++ b/gas/testsuite/gas/cfi-sframe/cfi-sframe-common-2.d @@ -0,0 +1,17 @@ +#as: --gsframe +#objdump: --sframe=.sframe +#name: Command line option for generating SFrame +#... +Contents of the SFrame section .sframe: + + Header : + + Version: SFRAME_VERSION_1 + Flags: NONE + Num FDEs: 1 + Num FREs: 1 + + Function Index : + func idx \[0\]: pc = 0x0, size = 0 bytes + STARTPC + CFA + FP + RA + +#pass diff --git a/gas/testsuite/gas/cfi-sframe/cfi-sframe-common-2.s b/gas/testsuite/gas/cfi-sframe/cfi-sframe-common-2.s new file mode 100644 index 0000000..659b3b9 --- /dev/null +++ b/gas/testsuite/gas/cfi-sframe/cfi-sframe-common-2.s @@ -0,0 +1,2 @@ + .cfi_startproc + .cfi_endproc diff --git a/gas/testsuite/gas/cfi-sframe/cfi-sframe-common-3.d b/gas/testsuite/gas/cfi-sframe/cfi-sframe-common-3.d new file mode 100644 index 0000000..9595450 --- /dev/null +++ b/gas/testsuite/gas/cfi-sframe/cfi-sframe-common-3.d @@ -0,0 +1,17 @@ +#as: +#objdump: --sframe=.sframe +#name: SFrame can co-exist with EH Frame +#... +Contents of the SFrame section .sframe: + + Header : + + Version: SFRAME_VERSION_1 + Flags: NONE + Num FDEs: 1 + Num FREs: 1 + + Function Index : + func idx \[0\]: pc = 0x0, size = 0 bytes + STARTPC + CFA + FP + RA + +#pass diff --git a/gas/testsuite/gas/cfi-sframe/cfi-sframe-common-3.s b/gas/testsuite/gas/cfi-sframe/cfi-sframe-common-3.s new file mode 100644 index 0000000..36d31fe --- /dev/null +++ b/gas/testsuite/gas/cfi-sframe/cfi-sframe-common-3.s @@ -0,0 +1,4 @@ + .cfi_sections .eh_frame + .cfi_sections .sframe + .cfi_startproc + .cfi_endproc diff --git a/gas/testsuite/gas/cfi-sframe/cfi-sframe-common-4.d b/gas/testsuite/gas/cfi-sframe/cfi-sframe-common-4.d new file mode 100644 index 0000000..b835980 --- /dev/null +++ b/gas/testsuite/gas/cfi-sframe/cfi-sframe-common-4.d @@ -0,0 +1,21 @@ +#as: --gsframe +#objdump: --sframe=.sframe +#name: SFrame cfi_def_cfa_offset test +#... +Contents of the SFrame section .sframe: + + Header : + + Version: SFRAME_VERSION_1 + Flags: NONE + Num FDEs: 1 + Num FREs: 3 + + Function Index : + func idx \[0\]: pc = 0x0, size = 12 bytes + STARTPC + CFA + FP + RA + +#... + 0+0004 +sp\+16 +u +u + + 0+0008 +sp\+32 +u +u + + +#pass diff --git a/gas/testsuite/gas/cfi-sframe/cfi-sframe-common-4.s b/gas/testsuite/gas/cfi-sframe/cfi-sframe-common-4.s new file mode 100644 index 0000000..0d026bb --- /dev/null +++ b/gas/testsuite/gas/cfi-sframe/cfi-sframe-common-4.s @@ -0,0 +1,8 @@ +## Testcase for cfi_def_cfa_offset + .cfi_startproc + .long 0 + .cfi_def_cfa_offset 16 + .long 0 + .cfi_def_cfa_offset 32 + .long 0 + .cfi_endproc diff --git a/gas/testsuite/gas/cfi-sframe/cfi-sframe-common-5.d b/gas/testsuite/gas/cfi-sframe/cfi-sframe-common-5.d new file mode 100644 index 0000000..d2bef75 --- /dev/null +++ b/gas/testsuite/gas/cfi-sframe/cfi-sframe-common-5.d @@ -0,0 +1,21 @@ +#as: --gsframe +#objdump: --sframe=.sframe +#name: SFrame cfi_adjust_cfa_offset test +#... +Contents of the SFrame section .sframe: + + Header : + + Version: SFRAME_VERSION_1 + Flags: NONE + Num FDEs: 1 + Num FREs: 3 + + Function Index : + func idx \[0\]: pc = 0x0, size = 12 bytes + STARTPC + CFA + FP + RA + +#... + 0+0004 +sp\+16 +u +u + + 0+0008 +sp\+24 +u +u + + +#pass diff --git a/gas/testsuite/gas/cfi-sframe/cfi-sframe-common-5.s b/gas/testsuite/gas/cfi-sframe/cfi-sframe-common-5.s new file mode 100644 index 0000000..c985c39 --- /dev/null +++ b/gas/testsuite/gas/cfi-sframe/cfi-sframe-common-5.s @@ -0,0 +1,7 @@ + .cfi_startproc + .long 0 + .cfi_def_cfa_offset 16 + .long 0 + .cfi_adjust_cfa_offset 8 + .long 0 + .cfi_endproc diff --git a/gas/testsuite/gas/cfi-sframe/cfi-sframe-common-6.d b/gas/testsuite/gas/cfi-sframe/cfi-sframe-common-6.d new file mode 100644 index 0000000..f915ac5 --- /dev/null +++ b/gas/testsuite/gas/cfi-sframe/cfi-sframe-common-6.d @@ -0,0 +1,21 @@ +#as: --gsframe +#objdump: --sframe=.sframe +#name: SFrame cfi_offset test +#... +Contents of the SFrame section .sframe: + + Header : + + Version: SFRAME_VERSION_1 + Flags: NONE + Num FDEs: 1 + Num FREs: 3 + + Function Index : + func idx \[0\]: pc = 0x0, size = 12 bytes + STARTPC + CFA + FP + RA + +#... + 0+0004 +sp\+8 +u +u + + 0+0008 +sp\+8 +u +u + + +#pass diff --git a/gas/testsuite/gas/cfi-sframe/cfi-sframe-common-6.s b/gas/testsuite/gas/cfi-sframe/cfi-sframe-common-6.s new file mode 100644 index 0000000..389f324 --- /dev/null +++ b/gas/testsuite/gas/cfi-sframe/cfi-sframe-common-6.s @@ -0,0 +1,7 @@ + .cfi_startproc + .long 0 + .cfi_def_cfa_offset 8 + .long 0 + .cfi_offset 0, 8 + .long 0 + .cfi_endproc diff --git a/gas/testsuite/gas/cfi-sframe/cfi-sframe-common-7.d b/gas/testsuite/gas/cfi-sframe/cfi-sframe-common-7.d new file mode 100644 index 0000000..cab19d5 --- /dev/null +++ b/gas/testsuite/gas/cfi-sframe/cfi-sframe-common-7.d @@ -0,0 +1,21 @@ +#as: --gsframe +#objdump: --sframe=.sframe +#name: SFrame cfi_rel_offset test +#... +Contents of the SFrame section .sframe: + + Header : + + Version: SFRAME_VERSION_1 + Flags: NONE + Num FDEs: 1 + Num FREs: 3 + + Function Index : + func idx \[0\]: pc = 0x0, size = 12 bytes + STARTPC + CFA + FP + RA + +#... + 0+0004 +sp\+8 +u +u + + 0+0008 +sp\+8 +u +u + + +#pass diff --git a/gas/testsuite/gas/cfi-sframe/cfi-sframe-common-7.s b/gas/testsuite/gas/cfi-sframe/cfi-sframe-common-7.s new file mode 100644 index 0000000..21fa031 --- /dev/null +++ b/gas/testsuite/gas/cfi-sframe/cfi-sframe-common-7.s @@ -0,0 +1,7 @@ + .cfi_startproc + .long 0 + .cfi_def_cfa_offset 8 + .long 0 + .cfi_rel_offset 1, 8 + .long 0 + .cfi_endproc diff --git a/gas/testsuite/gas/cfi-sframe/cfi-sframe-common-8.d b/gas/testsuite/gas/cfi-sframe/cfi-sframe-common-8.d new file mode 100644 index 0000000..c0a4a8de --- /dev/null +++ b/gas/testsuite/gas/cfi-sframe/cfi-sframe-common-8.d @@ -0,0 +1,20 @@ +#as: --gsframe +#objdump: --sframe=.sframe +#name: SFrame cfi_val_offset test +#... +Contents of the SFrame section .sframe: + + Header : + + Version: SFRAME_VERSION_1 + Flags: NONE + Num FDEs: 1 + Num FREs: 2 + + Function Index : + func idx \[0\]: pc = 0x0, size = 8 bytes + STARTPC + CFA + FP + RA + +#... + 0+0004 +sp\+16 +u +u + + +#pass diff --git a/gas/testsuite/gas/cfi-sframe/cfi-sframe-common-8.s b/gas/testsuite/gas/cfi-sframe/cfi-sframe-common-8.s new file mode 100644 index 0000000..f2083e6 --- /dev/null +++ b/gas/testsuite/gas/cfi-sframe/cfi-sframe-common-8.s @@ -0,0 +1,12 @@ +## cfi_val_offset when used with "not interesting" registers (from the +## perspective of SFrame section, non FP/RA registers are not +## interesting) does not affect the asynchronicity of the SFrame +## unwind information. Such CFI directives can be skipped for SFrame +## unwind info generation. + .cfi_startproc + .long 0 + .cfi_def_cfa_offset 16 + .cfi_val_offset 1, 8 + .cfi_val_offset 2, -32 + .long 0 + .cfi_endproc diff --git a/gas/testsuite/gas/cfi-sframe/cfi-sframe-x86_64-1.d b/gas/testsuite/gas/cfi-sframe/cfi-sframe-x86_64-1.d new file mode 100644 index 0000000..bba3b59 --- /dev/null +++ b/gas/testsuite/gas/cfi-sframe/cfi-sframe-x86_64-1.d @@ -0,0 +1,22 @@ +#as: -O0 +#objdump: --sframe=.sframe +#name: SFrame generation on x86_64 +#... +Contents of the SFrame section .sframe: + + Header : + + Version: SFRAME_VERSION_1 + Flags: NONE + Num FDEs: 1 + Num FREs: 4 + + Function Index : + + func idx \[0\]: pc = 0x0, size = 25 bytes + STARTPC +CFA +FP +RA + + 0+0000 +sp\+8 +u +u + + 0+0001 +sp\+16 +c\-16 +u + + 0+0004 +fp\+16 +c\-16 +u + + 0+0018 +sp\+8 +c\-16 +u + +#pass diff --git a/gas/testsuite/gas/cfi-sframe/cfi-sframe-x86_64-1.s b/gas/testsuite/gas/cfi-sframe/cfi-sframe-x86_64-1.s new file mode 100644 index 0000000..77f3578 --- /dev/null +++ b/gas/testsuite/gas/cfi-sframe/cfi-sframe-x86_64-1.s @@ -0,0 +1,30 @@ + .cfi_sections .sframe + .cfi_startproc + pushq %rbp + .cfi_def_cfa_offset 16 + .cfi_offset 6, -16 + movq %rsp, %rbp + .cfi_def_cfa_register 6 + pushq %r15 + pushq %r14 + pushq %r13 + pushq %r12 + pushq %rbx + ## These CFI opcodes are not interesting + ## for SFrame generation and will be + ## skipped. + .cfi_offset 15, -24 + .cfi_offset 14, -32 + .cfi_offset 13, -40 + .cfi_offset 12, -48 + .cfi_offset 3, -56 + nop + popq %rbx + popq %r12 + popq %r13 + popq %r14 + popq %r15 + popq %rbp + .cfi_def_cfa 7, 8 + ret + .cfi_endproc diff --git a/gas/testsuite/gas/cfi-sframe/cfi-sframe.exp b/gas/testsuite/gas/cfi-sframe/cfi-sframe.exp new file mode 100644 index 0000000..eb6da61 --- /dev/null +++ b/gas/testsuite/gas/cfi-sframe/cfi-sframe.exp @@ -0,0 +1,100 @@ +# Copyright (C) 2022 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 +} + +proc gas_sframe_check { } { + global check_as_sframe_result + global AS + global ASFLAGS + if [info exists check_as_sframe_result] { + return $check_as_sframe_result + } + + set as_file "tmpdir/check_as_sframe.s" + set as_fh [open $as_file w 0666] + puts $as_fh "# Generated file. DO NOT EDIT" + puts $as_fh "\t.cfi_startproc" + puts $as_fh "\t.cfi_endproc" + close $as_fh + remote_download host $as_file + verbose -log "Checking SFrame support in AS:" + + set old_ASFLAGS "$ASFLAGS" + set ASFLAGS "$ASFLAGS --gsframe" + + global comp_output + + set output_file "tmpdir/check_as_sframe.out" + set status [gas_host_run "$AS $ASFLAGS $as_file" "2>$output_file"] + set comp_output [file_contents "$output_file"] + set ASFLAGS "$old_ASFLAGS" + + if { ![string match "" $comp_output] + || [string match "*sframe not supported for target*" $comp_output] } then { + verbose -log "SFrame not supported in AS" + return 0 + } else { + verbose -log "SFrame supported in AS" + return 1 + } +} + +proc gas_x86_64_check { } { + global NM + global NMFLAGS + + set status [gas_host_run "$NM $NMFLAGS --help" ""] + return [regexp "targets:.*x86-64" [lindex $status 1]]; +} + +# common tests +if { ([istarget "x86_64-*-*"] || [istarget "aarch64*-*-*"]) \ + && [gas_sframe_check] } then { + + global ASFLAGS + set old_ASFLAGS "$ASFLAGS" + + run_dump_test "cfi-sframe-common-1" + run_dump_test "cfi-sframe-common-2" + run_dump_test "cfi-sframe-common-3" + run_dump_test "cfi-sframe-common-4" + run_dump_test "cfi-sframe-common-5" + run_dump_test "cfi-sframe-common-6" + run_dump_test "cfi-sframe-common-7" + run_dump_test "cfi-sframe-common-8" + + run_dump_test "common-empty-1" + run_dump_test "common-empty-2" + run_dump_test "common-empty-3" + run_dump_test "common-empty-4" +} + +# x86-64 specific tests +if { [istarget "x86_64-*-*"] && [gas_sframe_check] } then { + if { [gas_x86_64_check] } then { + set ASFLAGS "$ASFLAGS --64" + run_dump_test "cfi-sframe-x86_64-1" + set ASFLAGS "$old_ASFLAGS" + } +} + +# aarch64 specific tests +if { [istarget "aarch64*-*-*"] && [gas_sframe_check] } then { + run_dump_test "cfi-sframe-aarch64-1" +} diff --git a/gas/testsuite/gas/cfi-sframe/common-empty-1.d b/gas/testsuite/gas/cfi-sframe/common-empty-1.d new file mode 100644 index 0000000..0b09799 --- /dev/null +++ b/gas/testsuite/gas/cfi-sframe/common-empty-1.d @@ -0,0 +1,14 @@ +#as: --gsframe +#objdump: --sframe=.sframe +#name: Uninteresting cfi directives generate an empty SFrame section +#... +Contents of the SFrame section .sframe: + + Header : + + Version: SFRAME_VERSION_1 + Flags: NONE + Num FDEs: 0 + Num FREs: 0 + +#pass diff --git a/gas/testsuite/gas/cfi-sframe/common-empty-1.s b/gas/testsuite/gas/cfi-sframe/common-empty-1.s new file mode 100644 index 0000000..e26e998 --- /dev/null +++ b/gas/testsuite/gas/cfi-sframe/common-empty-1.s @@ -0,0 +1,5 @@ + .cfi_sections .sframe + .cfi_startproc + .cfi_remember_state + .cfi_restore_state + .cfi_endproc diff --git a/gas/testsuite/gas/cfi-sframe/common-empty-2.d b/gas/testsuite/gas/cfi-sframe/common-empty-2.d new file mode 100644 index 0000000..e566c07 --- /dev/null +++ b/gas/testsuite/gas/cfi-sframe/common-empty-2.d @@ -0,0 +1,14 @@ +#as: --gsframe +#objdump: --sframe=.sframe +#name: SFrame supports only FP/SP based CFA +#... +Contents of the SFrame section .sframe: + + Header : + + Version: SFRAME_VERSION_1 + Flags: NONE + Num FDEs: 0 + Num FREs: 0 + +#pass diff --git a/gas/testsuite/gas/cfi-sframe/common-empty-2.s b/gas/testsuite/gas/cfi-sframe/common-empty-2.s new file mode 100644 index 0000000..146c53d --- /dev/null +++ b/gas/testsuite/gas/cfi-sframe/common-empty-2.s @@ -0,0 +1,8 @@ +## CFA register is not defined to be SP/FP. +## No SFrame unwind info for this function will be generated. + .cfi_startproc simple + .long 0 + .long 0 + .cfi_adjust_cfa_offset 16 + .long 0 + .cfi_endproc diff --git a/gas/testsuite/gas/cfi-sframe/common-empty-3.d b/gas/testsuite/gas/cfi-sframe/common-empty-3.d new file mode 100644 index 0000000..f7a6062 --- /dev/null +++ b/gas/testsuite/gas/cfi-sframe/common-empty-3.d @@ -0,0 +1,14 @@ +#as: --gsframe +#objdump: --sframe=.sframe +#name: SFrame supports only default return column +#... +Contents of the SFrame section .sframe: + + Header : + + Version: SFRAME_VERSION_1 + Flags: NONE + Num FDEs: 0 + Num FREs: 0 + +#pass diff --git a/gas/testsuite/gas/cfi-sframe/common-empty-3.s b/gas/testsuite/gas/cfi-sframe/common-empty-3.s new file mode 100644 index 0000000..982fe0c --- /dev/null +++ b/gas/testsuite/gas/cfi-sframe/common-empty-3.s @@ -0,0 +1,9 @@ +## The return column is not the default value. +## No SFrame unwind info for this function will be generated. + .cfi_startproc + .cfi_return_column 0 + .long 0 + .long 0 + .cfi_adjust_cfa_offset 16 + .long 0 + .cfi_endproc diff --git a/gas/testsuite/gas/cfi-sframe/common-empty-4.d b/gas/testsuite/gas/cfi-sframe/common-empty-4.d new file mode 100644 index 0000000..f7a6062 --- /dev/null +++ b/gas/testsuite/gas/cfi-sframe/common-empty-4.d @@ -0,0 +1,14 @@ +#as: --gsframe +#objdump: --sframe=.sframe +#name: SFrame supports only default return column +#... +Contents of the SFrame section .sframe: + + Header : + + Version: SFRAME_VERSION_1 + Flags: NONE + Num FDEs: 0 + Num FREs: 0 + +#pass diff --git a/gas/testsuite/gas/cfi-sframe/common-empty-4.s b/gas/testsuite/gas/cfi-sframe/common-empty-4.s new file mode 100644 index 0000000..f97ca2f --- /dev/null +++ b/gas/testsuite/gas/cfi-sframe/common-empty-4.s @@ -0,0 +1,17 @@ +## ARMv8.3 addded support a new security feature named Pointer Authentication. The +## main idea behind this is to use the unused bits in the pointer values. +## Each pointer is patched with a PAC before writing to memory, and is verified +## before using it. +## When the pointers are mangled, the unwinder needs to know so it can mask off +## the PAC from the pointer value to recover the return address, and +## conversely, skip doing so if the pointers are not mangled. +## +## .cfi_negate_ra_state CFI directive is used to convey this information. +## +## SFrame does not have any means to represent this information at this time. + .cfi_startproc + .long 0 + .cfi_def_cfa_offset 16 + .cfi_negate_ra_state + .long 0 + .cfi_endproc |