Commit Graph

37706 Commits

Author SHA1 Message Date
Siddhesh Poyarekar
55a4dd3930 Remove __morecore and __default_morecore
Make the __morecore and __default_morecore symbols compat-only and
remove their declarations from the API.  Also, include morecore.c
directly into malloc.c; this should ideally get merged into malloc in
a future cleanup.

Reviewed-by: Carlos O'Donell <carlos@redhat.com>
Tested-by: Carlos O'Donell <carlos@redhat.com>
2021-07-22 18:37:57 +05:30
Siddhesh Poyarekar
57b07bede1 Remove __after_morecore_hook
Remove __after_morecore_hook from the API and finalize the symbol so
that it can no longer be used in new applications.  Old applications
using __after_morecore_hook will find that their hook is no longer
called.

Reviewed-by: Carlos O'Donell <carlos@redhat.com>
Tested-by: Carlos O'Donell <carlos@redhat.com>
2021-07-22 18:37:54 +05:30
Siddhesh Poyarekar
0075c4f39d Make mcheck tests conditional on GLIBC_2.23 or earlier
Targets with base versions of 2.24 or later won't have
__malloc_initialize_hook because of which the tests will essentially
be the same as the regular malloc tests.  Avoid running them instead
and save time.

Reviewed-by: Carlos O'Donell <carlos@redhat.com>
Tested-by: Carlos O'Donell <carlos@redhat.com>
2021-07-22 18:37:41 +05:30
Samuel Thibault
094ed6b0cc posix: Add sysconf(_SC_{MIN,}SIGSTKSZ) support 2021-07-22 01:24:52 +02:00
Samuel Thibault
63c60cff12 malloc: Fix tst-mallocfork3-malloc-check link
It uses pthread.
2021-07-22 00:42:38 +02:00
Vineet Gupta
8eb4f2e404 ARC: elf: make type safe
Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
2021-07-21 13:13:45 -07:00
Vineet Gupta
31aefa93f3 ARC: fp: (micro)optimize FPU_STATUS read by eliding FWE bit clearing
Any FPU_STATUS write needs setting the FWE bit (31) whcih just provides
a "control signal" to enable explicit write (vs. the side-effect of FPU
instructions).  However this bit is RAZ and write-only, thus effectively
never stored in FPU_STATUS register. Thus when reading the register
there is no need to clear it. This shaves off a BCLR instruction from
the fe*exceptino family of functions and while no big deal still makes
sense to do.

This came up when debugging a race in math/test-fenv-tls [1]

[1]: https://github.com/foss-for-synopsys-dwc-arc-processors/linux/issues/54

Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
2021-07-21 13:13:44 -07:00
Florian Weimer
77ede5f010 socket: Add time64 alias for sendmsg
Reviewed-by: Lukasz Majewski <lukma@denx.de>
Reviewed-by: Adhemerval Zanella  <adhemerval.zanella@linaro.org>
2021-07-21 11:58:16 +02:00
Florian Weimer
0a921c52b3 socket: Add time64 alias for recvmsg
Reviewed-by: Lukasz Majewski <lukma@denx.de>
Reviewed-by: Adhemerval Zanella  <adhemerval.zanella@linaro.org>
2021-07-21 11:58:16 +02:00
Florian Weimer
8b2c706a9d socket: Add time64 alias for sendmmsg
Reviewed-by: Lukasz Majewski <lukma@denx.de>
Reviewed-by: Adhemerval Zanella  <adhemerval.zanella@linaro.org>
2021-07-21 11:58:16 +02:00
Florian Weimer
b39ffab860 Linux: Add time64 alias for prctl
Reviewed-by: Lukasz Majewski <lukma@denx.de>
Reviewed-by: Adhemerval Zanella  <adhemerval.zanella@linaro.org>
2021-07-21 11:58:16 +02:00
Florian Weimer
8a40aff86b io: Add time64 alias for fcntl
Reviewed-by: Adhemerval Zanella  <adhemerval.zanella@linaro.org>
2021-07-21 11:58:16 +02:00
Florian Weimer
82c395d91e misc: Add time64 alias for ioctl
Reviewed-by: Lukasz Majewski <lukma@denx.de>
Reviewed-by: Adhemerval Zanella  <adhemerval.zanella@linaro.org>
2021-07-21 11:58:09 +02:00
Darius Rad
39e8eb5973 RISC-V: Update rv64 ULPs
Generated on a Microsemi Polarfire Icicle Kit running Linux version 5.6.18.
Same ULPs were also produced on QEMU 5.2.0 running Linux 5.10.46-1.
2021-07-21 08:44:09 +02:00
Florian Weimer
20be978f05 resolv: Do not install libnss_dns.a, libnss_dns.so
Fixes commit e1fcf21474 ("resolv: Move nss_dns into libc").
2021-07-20 12:29:27 +02:00
Samuel Thibault
ff417d4017 hurd: Add support for spawn_do_closefrom 2021-07-19 23:47:18 +02:00
Adhemerval Zanella
469761eac8 elf: Fix tst-cpu-features-cpuinfo on some AMD systems (BZ #28090)
The SSBD feature is implemented in 2 different ways on AMD processors:
newer systems (Zen3) provides AMD_SSBD (function 8000_0008, EBX[24]),
while older system provides AMD_VIRT_SSBD (function 8000_0008, EBX[25]).
However for AMD_VIRT_SSBD, kernel shows both 'ssdb' and 'virt_ssdb' on
/proc/cpuinfo; while for AMD_SSBD only 'ssdb' is provided.

This now check is AMD_SSBD is set to check for 'ssbd', otherwise check
if AMD_VIRT_SSDB is set to check for 'virt_ssbd'.

Checked on x86_64-linux-gnu on a Ryzen 9 5900x.

Reviewed-by: H.J. Lu <hjl.tools@gmail.com>
2021-07-19 14:12:29 -03:00
H.J. Lu
5adb0e14a5 i386: Add the clone3 wrapper
extern int clone3 (struct clone_args *__cl_args, size_t __size,
		   int (*__func) (void *__arg), void *__arg);

Reviewed-by: Carlos O'Donell <carlos@redhat.com>
2021-07-19 07:36:19 -07:00
Florian Weimer
ee5ed99922 nss: Directly load nss_dns, without going through dlsym/dlopen
This partially fixes static-only NSS support (bug 27959): The dns
module no longer needs dlopen.  Support for disabling dlopen altogher
remains to be added.

This commit introduces module_load_builtin into nss/nss_module.c, which
handles the common parts of loading the built-in nss_files and nss_dns
modules.

Reviewed-by: Carlos O'Donell <carlos@redhat.com>
Tested-by: Carlos O'Donell <carlos@redhat.com>
2021-07-19 07:56:57 +02:00
Florian Weimer
e1fcf21474 resolv: Move nss_dns into libc
No abilist updates are needed because the symbols were GLIBC_PRIVATE.

Reviewed-by: Carlos O'Donell <carlos@redhat.com>
Tested-by: Carlos O'Donell <carlos@redhat.com>
2021-07-19 07:56:57 +02:00
Florian Weimer
ea9878ec27 resolv: Move res_query functions into libc
This switches to public symbols without __ prefixes, due to improved
namespace management in glibc.

The script was used with --no-new-version to move the symbols
__res_nquery, __res_nquerydomain, __res_nsearch, __res_query,
__res_querydomain, __res_search, res_query, res_querydomain,
res_search.  The public symbols res_nquery, res_nquerydomain,
res_nsearch, res_ownok, res_query, res_querydomain, res_search
were added with make update-all-abi.

Reviewed-by: Carlos O'Donell <carlos@redhat.com>
Tested-by: Carlos O'Donell <carlos@redhat.com>
2021-07-19 07:56:57 +02:00
Florian Weimer
21a497cc58 resolv: Move res_mkquery, res_nmkquery into libc
This switches to public symbols without __ prefixes, due to improved
namespace management in glibc.

The symbols res_mkquery, __res_mkquery, __res_nmkquery were
moved with the script (using --no-new-version).
res_mkquery@@GLIBC_2.34, res_nmkquery@@GLIBC_2.34 were added using
make update-all-abi.

Reviewed-by: Carlos O'Donell <carlos@redhat.com>
Tested-by: Carlos O'Donell <carlos@redhat.com>
2021-07-19 07:56:57 +02:00
Florian Weimer
b165c65c35 resolv: Move res_send, res_nsend into libc
Switch to public symbols without __ prefix (due to improved
namespace management).

__res_send, __res_nsend were moved using the script (with
--no-new-version).  res_send@@GLIBC_2.34 and res_nsend@@GLIBC_2.34
were added using make update-all-abi.

Reviewed-by: Carlos O'Donell <carlos@redhat.com>
2021-07-19 07:56:45 +02:00
Florian Weimer
66ac4268f4 resolv: Move res_hostalias into its own file, along with hostalias
These deprecated symbols continue to be exported from libresolv.

Reviewed-by: Carlos O'Donell <carlos@redhat.com>
Tested-by: Carlos O'Donell <carlos@redhat.com>
2021-07-19 07:56:21 +02:00
Florian Weimer
be5773e166 resolv: Move __res_context_hostalias into its own file and into libc
And reformat it to GNU style.  Remove the unecessary setbuf call.
Use __fgets_unlocked for PLT avoidance; no locking is required here.

Reviewed-by: Carlos O'Donell <carlos@redhat.com>
Tested-by: Carlos O'Donell <carlos@redhat.com>
2021-07-19 07:56:21 +02:00
Florian Weimer
7131727c6b resolv: Move res_queriesmatch to its own file and into libc
And reformat it to GNU style.

The treatment of this function matches res_nameinquery, for the
reasons stated there.

Reviewed-by: Carlos O'Donell <carlos@redhat.com>
Tested-by: Carlos O'Donell <carlos@redhat.com>
2021-07-19 07:56:21 +02:00
Florian Weimer
72a51ac647 resolv: Move res_nameinquery to its own file and into libc
And reformat to GNU style.

This deprecated function is used in the implementation of the stub
resolver (for now).  Keep the public symbol in libresolv for now
(so that no new symbol version is needed), and add a forwarder to
libresolv.

Reviewed-by: Carlos O'Donell <carlos@redhat.com>
Tested-by: Carlos O'Donell <carlos@redhat.com>
2021-07-19 07:56:21 +02:00
Florian Weimer
762a2b2d34 resolv: Move ns_samename into its own file, and into libc
But only as an internal symbol, __libc_ns_samename.  The libresolv
ABI is preserved.  This is because the function is deprecated, and
it does not make sense to add new symbol versions for deprecated
functions.

Also reformat the implementation to GNU style.

Reviewed-by: Carlos O'Donell <carlos@redhat.com>
Tested-by: Carlos O'Donell <carlos@redhat.com>
2021-07-19 07:56:21 +02:00
Florian Weimer
08d4a98070 resolv: Move ns_makecanon into its own file, and into libc
But only as an internal symbol, __libc_ns_makecanon.  The libresolv
ABI is preserved.  This is because the function is deprecated, and
it does not make sense to add new symbol versions for deprecated
functions.

Also reformat the implementation to GNU style.

Reviewed-by: Carlos O'Donell <carlos@redhat.com>
Tested-by: Carlos O'Donell <carlos@redhat.com>
2021-07-19 07:56:21 +02:00
Florian Weimer
17d0407a5c resolv: Move res_isourserver to its own file and reformat to GNU style
Reviewed-by: Carlos O'Donell <carlos@redhat.com>
Tested-by: Carlos O'Donell <carlos@redhat.com>
2021-07-19 07:56:21 +02:00
Florian Weimer
9515126f90 resolv: Move __res_get_nsaddr to its own file and into libc
Eliminate the use of the EXT macro from it because it does not
add clarity.  The function was added to res_send.c in 2015, and
the copyright year reflects that.

Reviewed-by: Carlos O'Donell <carlos@redhat.com>
Tested-by: Carlos O'Donell <carlos@redhat.com>
2021-07-19 07:56:21 +02:00
Florian Weimer
2fbe5860d3 resolv: Rename res_comp.c to res-name-checking.c and move into libc
This reflects what the remaining functions in the file do.

The __res_dnok, __res_hnok, __res_mailok, __res_ownok were moved
with the script, using --no-new-version, and turned into compat
symbols.  __libc_res_dnok@@GLIBC_PRIVATE and
__libc_res_hnok@@GLIBC_PRIVATE are added for internal use, to avoid
accidentally binding to compatibility symbols.  The new public
symbols res_dnok, res_hnok, res_mailok, res_ownok were added using
make update-all-abi.

Reviewed-by: Carlos O'Donell <carlos@redhat.com>
Tested-by: Carlos O'Donell <carlos@redhat.com>
2021-07-19 07:56:21 +02:00
Florian Weimer
391e02236b resolv: Move dn_skipname to its own file and into libc
And reformat it to GNU style.

dn_skipname is used outside glibc, so do not deprecate it,
and export it as dn_skipname (not __dn_skipname).  Due to internal
users, provide a __libc_dn_skipname alias, and keep __dn_skipname
as a pure compatibility symbol.

__dn_skipname@GLIBC_2.0 was moved using the script, and
dn_skipname@@GLIBC_2.34 was added using make update-all-abi.

Reviewed-by: Carlos O'Donell <carlos@redhat.com>
Tested-by: Carlos O'Donell <carlos@redhat.com>
2021-07-19 07:56:21 +02:00
Florian Weimer
fd8a87c0c1 resolv: Move dn_comp to its own file and into libc
And reformat it to GNU style.

dn_comp is used in various programs, so keep it as a non-deprecated
symbol.  Switch to dn_comp (not __dn_comp) for the ABI name.  There
are no internal users, so interposition is not a problem.

The __dn_comp symbol was moved with scripts/move-symbol-to-libc.py
--no-new-version.  dn_comp@@GLIBC_2.34 was added with
make update-all-abi.

Reviewed-by: Carlos O'Donell <carlos@redhat.com>
Tested-by: Carlos O'Donell <carlos@redhat.com>
2021-07-19 07:56:21 +02:00
Florian Weimer
7ec366a08a resolv: Move _getlong, _getshort, __putlong, __putshort to res-putget
And reformat to GNU style.

Reviewed-by: Carlos O'Donell <carlos@redhat.com>
Tested-by: Carlos O'Donell <carlos@redhat.com>
2021-07-19 07:56:21 +02:00
Florian Weimer
640bbdf71c resolv: Move dn_expand to its own file and into libc
And reformat to GNU style.

This switches back to the dn_expand name for the ABI symbol and turns
__dn_expand into a compatibility symbol.  With the improved namespace
management in current glibc, it is no longer necessary to use a
private namespace symbol.  To avoid old code binding to a
GLIBC_PRIVATE symbol by accident, use __libc_dn_expand for the
internal symbol name.

The symbols dn_expand, __dnexpand were moved using
scripts/move-symbol-to-libc.py, followed by an adjustment to make
dn_expand the only GLIBC_2.34 symbol.

Reviewed-by: Carlos O'Donell <carlos@redhat.com>
Tested-by: Carlos O'Donell <carlos@redhat.com>
2021-07-19 07:56:21 +02:00
Florian Weimer
13e1f86706 resolv: Move ns_name_compress into its own file and into libc
And reformat to GNU style.

The symbol was moved using scripts/move-symbol-to-libc.py.

Reviewed-by: Carlos O'Donell <carlos@redhat.com>
Tested-by: Carlos O'Donell <carlos@redhat.com>
2021-07-19 07:56:21 +02:00
Florian Weimer
7ed1ac6da3 resolv: Move ns_name_pack into its own file and into libc
And reformat to GNU style, and eliminate the labellen function.

The symbol was moved using scripts/move-symbol-to-libc.py.

Reviewed-by: Carlos O'Donell <carlos@redhat.com>
Tested-by: Carlos O'Donell <carlos@redhat.com>
2021-07-19 07:56:21 +02:00
Florian Weimer
276e9822b3 resolv: Move ns_name_pton into its own file and into libc
And reformat to GNU style, and eliminate the digits variable.

The symbol was moved using scripts/move-symbol-to-libc.py.

Reviewed-by: Carlos O'Donell <carlos@redhat.com>
Tested-by: Carlos O'Donell <carlos@redhat.com>
2021-07-19 07:56:21 +02:00
Florian Weimer
4e1d3db1e8 resolv: Move ns_name_uncompress into its own file and into libc
And reformat to GNU style.  Check for negative error returns
(instead of -1).

The symbol was moved using scripts/move-symbol-to-libc.py.

Reviewed-by: Carlos O'Donell <carlos@redhat.com>
Tested-by: Carlos O'Donell <carlos@redhat.com>
2021-07-19 07:56:21 +02:00
Florian Weimer
cff2c78c51 resolv: Move ns_name_skip to its own file and into libc (bug 28091)
And reformat to GNU style.  Avoid out-of-bounds pointer arithmetic.
This also results in a fix of bug 28091 due to the additional packet
length checks.

The symbol was moved using scripts/move-symbol-to-libc.py.

Reviewed-by: Carlos O'Donell <carlos@systemhalted.org>
2021-07-19 07:56:13 +02:00
Florian Weimer
248dbed118 resolv: Deprecate legacy interfaces in libresolv
Debugging interfaces: p_*, fp_*, and sym_* could conceivably be
used to produce debug out, but these functions have not been
updated to parse more resource records, so they are not very useful
today.  Likewise for ns_sprintrr and ns_sprintrrf.  ns_format_ttl and
ns_parse_ttl are related to these.

Internal implementation details: res_isourserver is probably only
useful in the implementation of a stub resolver, and so is
res_nameinquery.

Unclear semantics and bad performance: ns_samedomain, ns_subdomain,
ns_makecanon, ns_samename do textual converions & copies instead of
checking equivalence of the wire format.

inet_neta cannot handle IPv6 addresses.

res_hostalias has been superseded by getaddrinfo with AI_CANONNAME.
hostalias is not thread-safe.

Some functions have int as size arguments instead of size_t, so they
do not follow current coding practices.  However, dn_expand and
b64_ntop are somewhat widely used (to name just two examples), so
deprecating them seems problematic.

Reviewed-by: Carlos O'Donell <carlos@systemhalted.org>
2021-07-19 07:55:42 +02:00
Siddhesh Poyarekar
191e406826 tst-safe-linking: make false positives even more improbable
There is a 1 in 16 chance of a corruption escaping safe-linking and to
guard against spurious failures, tst-safe-linking runs each subtest 10
times to ensure that the chance is reduced to 1 in 2^40.  However, in
the 1 in 16 chance that a corruption does escape safe linking, it
could well be caught by other sanity checks we do in malloc, which
then results in spurious test failures like below:

test test_fastbin_consolidate failed with a different error
  expected: malloc_consolidate(): unaligned fastbin chunk detected

  actual:   malloc_consolidate(): invalid chunk size

This failure is seen more frequently on i686; I was able to reproduce
it in about 5 min of running it in a loop.

Guard against such failures by recording them and retrying the test.
Also, do not fail the test if we happened to get defeated by the 1 in
2^40 odds if in at least one of the instances it was detected by other
checks.

Finally, bolster the odds to 2^64 by running 16 times instead of 10.
The test still has a chance of failure so it is still flaky in theory.
However in practice if we see a failure here then it's more likely
that there's a bug than it being an issue with the test.  Add more
printfs and also dump them to stdout so that in the event the test
actually fails, we will have some data to try and understand why it
may have failed.

Reviewed-by: Carlos O'Donell <carlos@redhat.com>
2021-07-19 08:29:25 +05:30
Samuel Thibault
0b217e5969 htl: Do not expose pthread hidden proto outside libpthread
Only libpthread.so can access them.
2021-07-18 20:25:33 +00:00
Adhemerval Zanella
881b68e45c elf: Fix a wrong array access on tst-tls20
Check on x86_64-linux-gnu with --enable-stack-protector=all.
2021-07-16 08:32:37 -03:00
Adhemerval Zanella
3a0253ac6f elf: Add -Wl,--no-as-needed for tst-tls-manydynamic*mod-dep-bad.so (BZ #28089)
The tests explicit requires the dependencies and it is required for
the case the toolchain defaults to -Wl,--as-needed.

Checked on x86_64-linux-gnu.
2021-07-15 08:18:21 -03:00
Florian Weimer
820bb23ff0 resolv: Move ns_name_unpack to its own file and into libc
Reformat to GNU style. Avoid out-of-bounds buffer arithmetic.
Eliminate the labellen function.

The symbol was moved using scripts/move-symbol-to-libc.py.

Reviewed-by: Carlos O'Donell <carlos@redhat.com>
Tested-by: Carlos O'Donell <carlos@redhat.com>
2021-07-15 09:00:27 +02:00
Florian Weimer
ee3639e0fe resolv: Remove unnecessary res_isourserver_p call from send_dg
As the comment indicates, the check is unnecessary due to the way the
UDP socket is set up.

Reviewed-by: Carlos O'Donell <carlos@redhat.com>
Tested-by: Carlos O'Donell <carlos@redhat.com>
2021-07-15 09:00:24 +02:00
Florian Weimer
adcc572a29 resolv: Move ns_name_ntop to its own file and into libc
Reformat to GNU style.  Avoid out-of-bounds pointer arithmetic
(e.g., use eom - dn < 2 instead of dn + 1 >= eom).  Inline the
labellen function and fold the compression pointer check into
the length check (l >= 64).  Assume ASCII encoding.

The symbol was moved using scripts/move-symbol-to-libc.py.

Reviewed-by: Carlos O'Donell <carlos@redhat.com>
Tested-by: Carlos O'Donell <carlos@redhat.com>
2021-07-15 08:39:31 +02:00
Florian Weimer
2ff32dd492 nss_dns: Do not use deprecated packet parsing functions
Reviewed-by: Carlos O'Donell <carlos@redhat.com>
Tested-by: Carlos O'Donell <carlos@redhat.com>
2021-07-15 08:39:02 +02:00