From: Javier Pello <devel@otheo.eu>
To: libc-alpha@sourceware.org
Subject: [PATCH 0/4] elf: Fix hwcaps string size overestimation
Date: Mon, 5 Sep 2022 20:06:52 +0200 [thread overview]
Message-ID: <20220905200652.d69204581d15c64647da5cd2@otheo.eu> (raw)
Dear list,
Here is a series of patches related to the construction of the hwcaps
power set strings in function _dl_important_hwcaps in elf/dl-hwcaps.c.
The first patch is the main one. It fixes an overallocation of memory
for the subdirectory strings in _dl_important_hwcaps that was introduced
when adding glibc-hwcaps support for LD_LIBRARY_PATH. This overallocation
does not have any user-visible impact (extra space is simply unused) but
it would be nice to have it fixed.
The other patches are small changes, also in _dl_important_hwcaps, that
I have been carrying around for some time now, and I am submitting them
in case there is interest in having them merged. The last one improves
generation of the hwcaps power set strings by using a single pass over
all needed strings, instead of two, resulting in shorter code.
The third and fourth patches could conceivably be squashed together.
Regards,
Javier
Javier Pello (4):
elf: Fix hwcaps string size overestimation
elf: Simplify hwcaps masked value bit counting
elf: Remove unneeded conditional in _dl_important_hwcaps
elf: Simplify hwcaps power set string construction
elf/dl-hwcaps.c | 98 +++++++++++++++++++------------------------------
1 file changed, 38 insertions(+), 60 deletions(-)
--
2.36.0
next reply other threads:[~2022-09-05 18:08 UTC|newest]
Thread overview: 53+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-09-05 18:06 Javier Pello [this message]
2022-09-05 18:09 ` [PATCH 1/4] " Javier Pello
2022-09-08 10:15 ` Florian Weimer
2022-09-05 18:10 ` [PATCH 2/4] elf: Simplify hwcaps masked value bit counting Javier Pello
2022-09-05 18:12 ` [PATCH 3/4] elf: Remove unneeded conditional in _dl_important_hwcaps Javier Pello
2022-09-05 18:13 ` [PATCH 4/4] elf: Simplify hwcaps power set string construction Javier Pello
2022-09-06 7:35 ` [PATCH 0/4] elf: Fix hwcaps string size overestimation Florian Weimer
2022-09-06 18:12 ` Javier Pello
2022-09-08 11:23 ` Florian Weimer
2022-09-14 18:07 ` [PATCH 0/6] Remove legacy hwcaps support Javier Pello
2022-09-14 18:08 ` [PATCH 1/6] elf: Remove legacy hwcaps support from the dynamic loader Javier Pello
2022-09-14 18:10 ` [PATCH 2/6] elf: Remove legacy hwcaps support from ldconfig Javier Pello
2022-09-14 18:10 ` [PATCH 3/6] elf: Remove hwcap parameter from add_to_cache signature Javier Pello
2022-09-14 18:12 ` [PATCH 4/6] elf: Remove hwcap and bits_hwcap fields from struct cache_entry Javier Pello
2022-09-14 18:13 ` [PATCH 5/6] elf: Remove _dl_string_hwcap Javier Pello
2022-09-14 18:15 ` [PATCH 6/6] elf: Simplify output of hwcap subdirectories in ld.so help Javier Pello
2022-09-15 8:42 ` Carlos O'Donell
2022-09-15 19:12 ` Javier Pello
2022-09-14 21:23 ` [PATCH 0/6] Remove legacy hwcaps support Joseph Myers
2022-09-17 14:17 ` [PATCH v2 " Javier Pello
2022-09-17 14:18 ` [PATCH v2 1/6] elf: Remove legacy hwcaps support from the dynamic loader Javier Pello
2022-09-22 11:46 ` Florian Weimer
2022-09-17 14:19 ` [PATCH v2 2/6] elf: Remove legacy hwcaps support from ldconfig Javier Pello
2022-09-22 12:14 ` Florian Weimer
2022-09-17 14:20 ` [PATCH v2 3/6] elf: Remove hwcap parameter from add_to_cache signature Javier Pello
2022-09-22 16:02 ` Florian Weimer
2022-09-17 14:22 ` [PATCH v2 4/6] elf: Remove hwcap and bits_hwcap fields from struct cache_entry Javier Pello
2022-09-22 16:03 ` Florian Weimer
2022-09-17 14:23 ` [PATCH v2 5/6] elf: Remove _dl_string_hwcap Javier Pello
2022-09-17 14:24 ` [PATCH v2 6/6] elf: Simplify output of hwcap subdirectories in ld.so help Javier Pello
2022-09-21 16:26 ` [PATCH v2 0/6] Remove legacy hwcaps support Joseph Myers
2022-09-27 18:03 ` [PATCH v3 0/8] " Javier Pello
2022-09-27 18:05 ` [PATCH v3 1/8] x86_64: Remove platform directory library loading test Javier Pello
2022-10-03 14:56 ` Adhemerval Zanella Netto
2022-10-04 17:53 ` Javier Pello
2022-10-04 17:59 ` Adhemerval Zanella Netto
2022-09-27 18:05 ` [PATCH v3 2/8] elf: Remove legacy hwcaps support from the dynamic loader Javier Pello
2022-09-27 18:06 ` [PATCH v3 3/8] elf: Remove legacy hwcaps support from ldconfig Javier Pello
2022-10-03 15:31 ` Adhemerval Zanella Netto
2022-09-27 18:07 ` [PATCH v3 4/8] elf: Remove hwcap parameter from add_to_cache signature Javier Pello
2022-09-27 18:08 ` [PATCH v3 5/8] elf: Remove hwcap and bits_hwcap fields from struct cache_entry Javier Pello
2022-09-27 18:08 ` [PATCH v3 6/8] Add NEWS entry for legacy hwcaps removal Javier Pello
2022-10-03 15:44 ` Adhemerval Zanella Netto
2022-10-03 19:29 ` Andreas Schwab
2022-10-03 19:49 ` Adhemerval Zanella Netto
2022-10-03 19:59 ` Florian Weimer
2022-10-04 18:00 ` Adhemerval Zanella Netto
2022-10-05 18:12 ` Javier Pello
2022-10-06 11:03 ` Adhemerval Zanella Netto
2022-09-27 18:09 ` [PATCH v3 7/8] elf: Remove _dl_string_hwcap Javier Pello
2022-10-03 16:52 ` Adhemerval Zanella Netto
2022-09-27 18:10 ` [PATCH v3 8/8] elf: Simplify output of hwcap subdirectories in ld.so help Javier Pello
2022-10-03 17:02 ` Adhemerval Zanella Netto
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