From: Ramsay Jones <ramsay@ramsayjones.plus.com>
To: "brian m. carlson" <sandals@crustytoothpaste.net>,
"Derrick Stolee" <stolee@gmail.com>,
git@vger.kernel.org, "Ævar Arnfjörð Bjarmason" <avarab@gmail.com>,
"Duy Nguyen" <pclouds@gmail.com>,
"SZEDER Gábor" <szeder.dev@gmail.com>,
"Jakub Narebski" <jnareb@gmail.com>,
"Christian Couder" <christian.couder@gmail.com>
Subject: Re: [PATCH v5 02/12] sha1-file: provide functions to look up hash algorithms
Date: Wed, 14 Nov 2018 03:53:20 +0000 [thread overview]
Message-ID: <79b436d4-48f9-8e38-0dbe-1831aa3fc208@ramsayjones.plus.com> (raw)
In-Reply-To: <20181114021118.GN890086@genre.crustytoothpaste.net>
On 14/11/2018 02:11, brian m. carlson wrote:
> On Wed, Nov 14, 2018 at 12:11:07AM +0000, Ramsay Jones wrote:
>>
>>
>> On 13/11/2018 18:42, Derrick Stolee wrote:
>>> On 11/4/2018 6:44 PM, brian m. carlson wrote:
>>>> +int hash_algo_by_name(const char *name)
>>>> +{
>>>> + int i;
>>>> + if (!name)
>>>> + return GIT_HASH_UNKNOWN;
>>>> + for (i = 1; i < GIT_HASH_NALGOS; i++)
>>>> + if (!strcmp(name, hash_algos[i].name))
>>>> + return i;
>>>> + return GIT_HASH_UNKNOWN;
>>>> +}
>>>> +
>>>
>>> Today's test coverage report [1] shows this method is not covered in the test suite. Looking at 'pu', it doesn't have any callers.
>>>
>>> Do you have a work in progress series that will use this? Could we add a test-tool to exercise this somehow?
>>
>> There are actually 4 unused external symbols resulting from Brian's
>> 'bc/sha-256' branch. The new unused externals in 'pu' looks like:
>>
>> $ diff nsc psc
>> 37a38,39
>> > hex.o - hash_to_hex
>
> I have code that uses this in my object-id-part15 series. I also have
> another series coming after this one that makes heavy use of it.
>
>> > hex.o - hash_to_hex_algop_r
>
> I believe this is because it's inline, since it is indeed used just a
> few lines below its definition. I'll drop the inline, since it's meant
> to be externally visible.
No, this has nothing to do with the 'inline', it is simply not
called outside of hex.c (at present). If you look at the assembler
(objdump -d hex.o), you will find practically all of the function
calls in that file are inlined (even those not marked with 'inline').
[I think the external declaration in cache.h forces the compiler to
add the external definition, despite the 'inline'. If you remove the
'inline' and re-compile and disassemble again, the result is identical.]
Thanks for confirming upcoming patches will add uses for all of
these functions - I suspected that would be the case.
Thanks!
ATB,
Ramsay Jones
>
>> > sha1-file.o - hash_algo_by_id
>
> This will be used when I write pack index v3, which will be in my
> object-id-part15 series.
>
>> > sha1-file.o - hash_algo_by_name
>
> This is used in my object-id-part15 series.
>
next prev parent reply other threads:[~2018-11-14 3:53 UTC|newest]
Thread overview: 58+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-10-25 2:39 [PATCH v4 00/12] Base SHA-256 implementation brian m. carlson
2018-10-25 2:39 ` [PATCH v4 01/12] sha1-file: rename algorithm to "sha1" brian m. carlson
2018-10-25 2:39 ` [PATCH v4 02/12] sha1-file: provide functions to look up hash algorithms brian m. carlson
2018-10-25 2:39 ` [PATCH v4 03/12] hex: introduce functions to print arbitrary hashes brian m. carlson
2018-10-25 2:39 ` [PATCH v4 04/12] cache: make hashcmp and hasheq work with larger hashes brian m. carlson
2018-10-25 2:39 ` [PATCH v4 05/12] t: add basic tests for our SHA-1 implementation brian m. carlson
2018-10-25 2:39 ` [PATCH v4 06/12] t: make the sha1 test-tool helper generic brian m. carlson
2018-10-25 2:40 ` [PATCH v4 07/12] sha1-file: add a constant for hash block size brian m. carlson
2018-10-25 2:40 ` [PATCH v4 08/12] t/helper: add a test helper to compute hash speed brian m. carlson
2018-10-25 2:40 ` [PATCH v4 09/12] commit-graph: convert to using the_hash_algo brian m. carlson
2018-10-25 2:40 ` [PATCH v4 10/12] Add a base implementation of SHA-256 support brian m. carlson
2018-10-25 3:02 ` Carlo Arenas
2018-10-28 15:52 ` brian m. carlson
2018-10-29 0:39 ` Junio C Hamano
2018-10-31 22:55 ` brian m. carlson
2018-11-01 5:29 ` Junio C Hamano
2018-10-27 9:03 ` Christian Couder
2018-10-25 2:40 ` [PATCH v4 11/12] sha256: add an SHA-256 implementation using libgcrypt brian m. carlson
2018-10-25 2:40 ` [PATCH v4 12/12] hash: add an SHA-256 implementation using OpenSSL brian m. carlson
2018-11-04 23:44 ` [PATCH v5 00/12] Base SHA-256 implementation brian m. carlson
2018-11-04 23:44 ` [PATCH v5 01/12] sha1-file: rename algorithm to "sha1" brian m. carlson
2018-11-05 7:21 ` Ævar Arnfjörð Bjarmason
2018-11-04 23:44 ` [PATCH v5 02/12] sha1-file: provide functions to look up hash algorithms brian m. carlson
2018-11-13 18:42 ` Derrick Stolee
2018-11-13 18:45 ` Duy Nguyen
2018-11-14 1:01 ` brian m. carlson
2018-11-14 0:11 ` Ramsay Jones
2018-11-14 0:42 ` Ramsay Jones
2018-11-14 0:51 ` Jeff King
2018-11-14 2:11 ` brian m. carlson
2018-11-14 3:53 ` Ramsay Jones [this message]
2018-11-04 23:44 ` [PATCH v5 03/12] hex: introduce functions to print arbitrary hashes brian m. carlson
2018-11-04 23:44 ` [PATCH v5 04/12] cache: make hashcmp and hasheq work with larger hashes brian m. carlson
2018-11-04 23:44 ` [PATCH v5 05/12] t: add basic tests for our SHA-1 implementation brian m. carlson
2018-11-04 23:44 ` [PATCH v5 06/12] t: make the sha1 test-tool helper generic brian m. carlson
2018-11-04 23:44 ` [PATCH v5 07/12] sha1-file: add a constant for hash block size brian m. carlson
2018-11-04 23:44 ` [PATCH v5 08/12] t/helper: add a test helper to compute hash speed brian m. carlson
2018-11-04 23:44 ` [PATCH v5 09/12] commit-graph: convert to using the_hash_algo brian m. carlson
2018-11-04 23:44 ` [PATCH v5 10/12] Add a base implementation of SHA-256 support brian m. carlson
2018-11-05 11:39 ` Ævar Arnfjörð Bjarmason
2018-11-07 1:30 ` brian m. carlson
2018-11-10 15:52 ` Ævar Arnfjörð Bjarmason
2018-11-04 23:44 ` [PATCH v5 11/12] sha256: add an SHA-256 implementation using libgcrypt brian m. carlson
2018-11-04 23:44 ` [PATCH v5 12/12] hash: add an SHA-256 implementation using OpenSSL brian m. carlson
2018-11-05 2:45 ` [PATCH v5 00/12] Base SHA-256 implementation Junio C Hamano
2018-11-14 4:09 ` [PATCH v6 " brian m. carlson
2018-11-14 4:09 ` [PATCH v6 01/12] sha1-file: rename algorithm to "sha1" brian m. carlson
2018-11-14 4:09 ` [PATCH v6 02/12] sha1-file: provide functions to look up hash algorithms brian m. carlson
2018-11-14 4:09 ` [PATCH v6 03/12] hex: introduce functions to print arbitrary hashes brian m. carlson
2018-11-14 4:09 ` [PATCH v6 04/12] cache: make hashcmp and hasheq work with larger hashes brian m. carlson
2018-11-14 4:09 ` [PATCH v6 05/12] t: add basic tests for our SHA-1 implementation brian m. carlson
2018-11-14 4:09 ` [PATCH v6 06/12] t: make the sha1 test-tool helper generic brian m. carlson
2018-11-14 4:09 ` [PATCH v6 07/12] sha1-file: add a constant for hash block size brian m. carlson
2018-11-14 4:09 ` [PATCH v6 08/12] t/helper: add a test helper to compute hash speed brian m. carlson
2018-11-14 4:09 ` [PATCH v6 09/12] commit-graph: convert to using the_hash_algo brian m. carlson
2018-11-14 4:09 ` [PATCH v6 10/12] Add a base implementation of SHA-256 support brian m. carlson
2018-11-14 4:09 ` [PATCH v6 11/12] sha256: add an SHA-256 implementation using libgcrypt brian m. carlson
2018-11-14 4:09 ` [PATCH v6 12/12] hash: add an SHA-256 implementation using OpenSSL brian m. carlson
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