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| author | Srinath Parvathaneni <srinath.parvathaneni@arm.com> | 2022-11-14 15:13:17 +0000 |
|---|---|---|
| committer | Srinath Parvathaneni <srinath.parvathaneni@arm.com> | 2022-11-14 15:13:21 +0000 |
| commit | 9b1c7dc3a041b6d37f9c80b46778c98c157b393f (patch) | |
| tree | 5534b49d5f85618281eb00d2633b0fcf443ce35a /gas/testsuite | |
| parent | b62fb887c69a482e0d4e7b9f7ded7384f8c4e584 (diff) | |
| download | gdb-9b1c7dc3a041b6d37f9c80b46778c98c157b393f.zip gdb-9b1c7dc3a041b6d37f9c80b46778c98c157b393f.tar.gz gdb-9b1c7dc3a041b6d37f9c80b46778c98c157b393f.tar.bz2 | |
[gas] arm: Add support for new unwinder directive ".pacspval".
This patch adds the assembler support for the new unwinder
directive ".pacspval" and encodes this directives with opcode
"0xb5". This opcode indicates the unwinder to use effective
vsp as modifier for PAC validation.
gas/ChangeLog:
2022-11-07 Srinath Parvathaneni <srinath.parvathaneni@arm.com>
* doc/c-arm.texi: Document directive.
* config/tc-arm.c (s_arm_unwind_pacspval): Define function.
(md_pseudo_table): Add entry for pacspval directive.
* testsuite/gas/arm/ehabi-pacbti-m.d: New test.
* testsuite/gas/arm/ehabi-pacbti-m.s: Likewise.
Diffstat (limited to 'gas/testsuite')
| -rw-r--r-- | gas/testsuite/gas/arm/ehabi-pacbti-m.d | 15 | ||||
| -rw-r--r-- | gas/testsuite/gas/arm/ehabi-pacbti-m.s | 38 |
2 files changed, 53 insertions, 0 deletions
diff --git a/gas/testsuite/gas/arm/ehabi-pacbti-m.d b/gas/testsuite/gas/arm/ehabi-pacbti-m.d new file mode 100644 index 0000000..6039945 --- /dev/null +++ b/gas/testsuite/gas/arm/ehabi-pacbti-m.d @@ -0,0 +1,15 @@ +# name: Unwind Stack Frame information for Armv8.1-M.Mainline PAC extension +# source: ehabi-pacbti-m.s +# as: -march=armv8.1-m.main+mve+pacbti +# readelf: -u + +Unwind section '.ARM.exidx' at offset 0x5c contains 1 entry: + +0x0: @0x0 + Compact model index: 1 + 0xb1 0x08 pop {r3} + 0x80 0x08 pop {r7} + 0xb4 pop {ra_auth_code} + 0x84 0x00 pop {r14} + 0xb1 0x0f pop {r0, r1, r2, r3} + 0xb5 vsp as modifier for PAC validation diff --git a/gas/testsuite/gas/arm/ehabi-pacbti-m.s b/gas/testsuite/gas/arm/ehabi-pacbti-m.s new file mode 100644 index 0000000..1018548 --- /dev/null +++ b/gas/testsuite/gas/arm/ehabi-pacbti-m.s @@ -0,0 +1,38 @@ + .syntax unified + .thumb + .thumb_func + .fnstart + .cfi_startproc + .pacspval + pac ip, lr, sp + .cfi_register 143, 12 + push {r0, r1, r2, r3} + .save {r0, r1, r2, r3} + .cfi_def_cfa_offset 16 + .cfi_offset 0, -16 + .cfi_offset 1, -12 + .cfi_offset 2, -8 + .cfi_offset 3, -4 + push {r3, r7, ip, lr} + .save {r3, r7, ra_auth_code, lr} + .cfi_def_cfa_offset 32 + .cfi_offset 3, -32 + .cfi_offset 7, -28 + .cfi_offset 143, -24 + .cfi_offset 14, -20 + pop {r3, r7, ip, lr} + .cfi_restore 14 + .cfi_restore 143 + .cfi_restore 7 + .cfi_restore 3 + .cfi_def_cfa_offset 0 + add sp, sp, #16 + .cfi_restore 3 + .cfi_restore 2 + .cfi_restore 1 + .cfi_restore 0 + .cfi_def_cfa_offset -16 + aut ip, lr, sp + bx lr + .cfi_endproc + .fnend |