diff options
Diffstat (limited to 'bfd/elf-bfd.h')
| -rw-r--r-- | bfd/elf-bfd.h | 30 |
1 files changed, 18 insertions, 12 deletions
diff --git a/bfd/elf-bfd.h b/bfd/elf-bfd.h index dc9f153..86ddd63 100644 --- a/bfd/elf-bfd.h +++ b/bfd/elf-bfd.h @@ -276,19 +276,20 @@ struct eh_cie_fde struct eh_cie_fde *next_for_section; } fde; struct { - /* In general, equivalent CIEs are grouped together, with one CIE - representing all the others in a group. + /* CIEs have three states: - If REMOVED == 0, this CIE is the group representative, and - U.SEC points to the .eh_frame section that contains the CIE. + - REMOVED && !MERGED: Slated for removal because we haven't yet + proven that an FDE needs it. FULL_CIE, if nonnull, points to + more detailed information about the CIE. - If REMOVED == 1, this CIE is the group representative if - U.MERGED is a self pointer. Otherwise, following U.MERGED - brings us "closer" to the CIE's group representative; - if U.MERGED is not the group representative, then - U.MERGED->U.MERGED is. */ + - REMOVED && MERGED: We have merged this CIE with MERGED_WITH, + which may not belong to the same input section. + + - !REMOVED: We have decided to keep this CIE. SEC is the + .eh_frame input section that contains the CIE. */ union { - struct eh_cie_fde *merged; + struct cie *full_cie; + struct eh_cie_fde *merged_with; asection *sec; } u; @@ -296,8 +297,7 @@ struct eh_cie_fde unsigned int gc_mark : 1; /* True if we have decided to turn an absolute LSDA encoding into - a PC-relative one. It is the group representative's setting - that matters. */ + a PC-relative one. */ unsigned int make_lsda_relative : 1; /* True if the CIE contains personality data and if that data @@ -307,6 +307,9 @@ struct eh_cie_fde /* True if we need to add an 'R' (FDE encoding) entry to the CIE's augmentation data. */ unsigned int add_fde_encoding : 1; + + /* True if we have merged this CIE with another. */ + unsigned int merged : 1; } cie; } u; unsigned int reloc_index; @@ -341,6 +344,7 @@ struct eh_cie_fde struct eh_frame_sec_info { unsigned int count; + struct cie *cies; struct eh_cie_fde entry[1]; }; @@ -358,6 +362,8 @@ struct eh_frame_hdr_info asection *hdr_sec; unsigned int fde_count, array_count; struct eh_frame_array_ent *array; + /* TRUE if we should try to merge CIEs between input sections. */ + bfd_boolean merge_cies; /* TRUE if all .eh_frames have been parsd. */ bfd_boolean parsed_eh_frames; /* TRUE if .eh_frame_hdr should contain the sorted search table. |