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author | Alan Modra <amodra@gmail.com> | 2024-02-24 11:38:57 +1030 |
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committer | Alan Modra <amodra@gmail.com> | 2024-02-24 14:59:13 +1030 |
commit | 086c8f406d82ce171d5867eed93f1308e07252c5 (patch) | |
tree | 2968d0a88337f90ddaea4a91a929810fca35a6e7 /gas/config/tc-xtensa.c | |
parent | bc45bfd25984a709dec4236daf412c58a127633a (diff) | |
download | binutils-086c8f406d82ce171d5867eed93f1308e07252c5.zip binutils-086c8f406d82ce171d5867eed93f1308e07252c5.tar.gz binutils-086c8f406d82ce171d5867eed93f1308e07252c5.tar.bz2 |
PR25333, GAS is slow processing -fdebug-types-sections
gas needs to build lists of sections for each group. This arranges to
build the lists earlier, so they can be used when looking for sections
that belong to a group. Using the section hash table to find sections
by name, then by group isn't efficient when there are numerous groups
with the same section names. Using a hash table to quickly find a
group, then searching by section name on a list for the group results
in a 100-fold speed improvement assembling the testcase in this PR.
To reduce the number of times we traverse the section list, the patch
also moves some processing done in elf_adjust_symtab for linked-to
section, to elf_frob_file. This requires a testsuite change because
processing will stop before elf_frob_file if there is a parse error in
section21.s, ie. you'll only get the "junk at end of line" error, not
the "undefined linked-to symbol" errors.
PR 25333
* config/obj-elf.c (struct group_list, groups): Move earlier.
(match_section): New function, extracted from..
(get_section_by_match): ..here.
(free_section_idx): Move earlier.
(group_section_find, group_section_insert): New functions.
(change_section): Use the above.
(elf_set_group_name): New function.
(obj_elf_attach_to_group): Use elf_set_group_name.
(set_additional_section_info): Handle linked_to_symbol_name and
stabs code, extracted from..
(adjust_stab_sections): ..here,..
(build_additional_section_info): ..and here.
(elf_adjust_symtab): Don't call build_additional_section_info.
(elf_frob_file): Adjust.
* config/obj-elf.h (elf_set_group_name): Declare.
* config/tc-xtensa.c (cache_literal_section): Use elf_set_group_name.
(xtensa_make_property_section): Likewise.
* testsuite/gas/elf/attach-1.d: Stricter group section matching,
and changed group section ordering.
* testsuite/gas/elf/attach-2.d: Stricter group section matching.
* testsuite/gas/elf/attach-2.s: Provide section bar type.
* testsuite/gas/elf/elf.exp: Run attach-2.
* testsuite/gas/elf/section21.l: Update.
* testsuite/gas/elf/section21.s: Don't check for a parse error.
Diffstat (limited to 'gas/config/tc-xtensa.c')
-rw-r--r-- | gas/config/tc-xtensa.c | 8 |
1 files changed, 5 insertions, 3 deletions
diff --git a/gas/config/tc-xtensa.c b/gas/config/tc-xtensa.c index 188715d..e051bb9 100644 --- a/gas/config/tc-xtensa.c +++ b/gas/config/tc-xtensa.c @@ -11718,10 +11718,11 @@ cache_literal_section (bool use_abs_literals) | (linkonce ? (SEC_LINK_ONCE | SEC_LINK_DUPLICATES_DISCARD) : 0) | (use_abs_literals ? SEC_DATA : SEC_CODE)); - elf_group_name (seg) = group_name; - bfd_set_section_flags (seg, flags); bfd_set_section_alignment (seg, 2); + + if (group_name) + elf_set_group_name (seg, group_name); } *pcached = seg; @@ -11813,7 +11814,8 @@ xtensa_make_property_section (asection *sec, const char *base_name) if (! prop_sec) return 0; - elf_group_name (prop_sec) = elf_group_name (sec); + if (elf_group_name (sec)) + elf_set_group_name (prop_sec, elf_group_name (sec)); } free (prop_sec_name); |