diff options
Diffstat (limited to 'libsframe/doc')
| -rw-r--r-- | libsframe/doc/sframe-spec.texi | 20 |
1 files changed, 11 insertions, 9 deletions
diff --git a/libsframe/doc/sframe-spec.texi b/libsframe/doc/sframe-spec.texi index 7307789..f25791e 100644 --- a/libsframe/doc/sframe-spec.texi +++ b/libsframe/doc/sframe-spec.texi @@ -20,7 +20,7 @@ License''. @titlepage @title The SFrame Format -@subtitle Version 2 +@subtitle Version 2 (Errata 1) @sp 15 @center @today{} @author Indu Bhagat @@ -35,9 +35,9 @@ License''. @node Top @top The SFrame format -This manual describes version 2 of the SFrame file format. SFrame stands for -Simple Frame. The SFrame format keeps track of the minimal necessary -information needed for generating stack traces: +This manual describes version 2 (errata 1) of the SFrame file format. SFrame +stands for Simple Frame. The SFrame format keeps track of the minimal +necessary information needed for generating stack traces: @itemize @minus @item @@ -130,9 +130,9 @@ the data structure. The above two imply that each SFrame function descriptor entry has a fixed size of 20 bytes instead of its size of 17 bytes in SFrame format version 1. @item -Add a new flag SFRAME_F_FDE_FUNC_START_PCREL, as an erratum to SFrame -Version 2, to indicate the encoding of the SFrame FDE function start address -field: +[Errata 1] Add a new flag SFRAME_F_FDE_FUNC_START_PCREL, as an erratum to +SFrame Version 2, to indicate the encoding of the SFrame FDE function start +address field: @itemize @minus @item if set, @code{sfde_func_start_address} field contains the offset in bytes to the start PC of the associated function from the field itself. @@ -141,8 +141,8 @@ bytes to the start PC of the associated function from the start of the SFrame section. @end itemize @item -Add a new ABI/arch identifier SFRAME_ABI_S390X_ENDIAN_BIG for the s390 -architecture (64-bit) s390x ABI. Other s390x-specific backward compatible +[Errata 1] Add a new ABI/arch identifier SFRAME_ABI_S390X_ENDIAN_BIG for the +s390 architecture (64-bit) s390x ABI. Other s390x-specific backward compatible changes including the following helper definitions have been incrementally added to SFrame version 2 only: @itemize @minus @@ -165,6 +165,8 @@ CFA offset adjustment and then scale down by CFA offset alignment factor). @item SFRAME_V2_S390X_CFA_OFFSET_DECODE: Decode CFA offset (i.e., scale up by CFA offset alignment factor and then revert CFA offset adjustment). @end itemize +@item +[Errata 1] An ELF SFrame section has the type SHT_GNU_SFRAME. @end itemize SFrame version 1 is now obsolete and should not be used. |