[COMMITTED,V2,5/5,5/5] sframe: doc: update documentation for pauth key in SFrame FDE
Message ID | 20221219202328.1442022-6-indu.bhagat@oracle.com |
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State | Accepted |
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Series |
SFrame: add support for .cfi_b_key_frame
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Checks
Context | Check | Description |
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snail/binutils-gdb-check | success | Github commit url |
Commit Message
Indu Bhagat
Dec. 19, 2022, 8:23 p.m. UTC
[No changes in V2] ChangeLog: * libsframe/doc/sframe-spec.texi --- libsframe/doc/sframe-spec.texi | 8 +++++++- 1 file changed, 7 insertions(+), 1 deletion(-)
diff --git a/libsframe/doc/sframe-spec.texi b/libsframe/doc/sframe-spec.texi index fa66d801dd3..345b8f93036 100644 --- a/libsframe/doc/sframe-spec.texi +++ b/libsframe/doc/sframe-spec.texi @@ -398,10 +398,16 @@ The info word is a bitfield split into three parts. From MSB to LSB: @multitable {Bit offset} {@code{isroot}} {Length of variable-length data for this type (some kinds only).} @headitem Bit offset @tab Name @tab Description -@item 7--5 +@item 7--6 @tab @code{unused} @tab Unused bits. +@item 5 +@tab @code{pauth_key} +@tab Specify which key is used for signing the return addresses in the SFrame +FDE. Two possible values: SFRAME_AARCH64_PAUTH_KEY_A (0) or +SFRAME_AARCH64_PAUTH_KEY_B (1). + @item 4 @tab @code{fdetype} @tab SFRAME_FDE_TYPE_PCMASK (1) or SFRAME_FDE_TYPE_PCINC (0). @xref{The SFrame FDE types}.