glibc.git/misc, branch zack/remove-libcrypt

misc/bits/syslog.h: Clearly separate declaration from definition

2023-07-05T14:59:48+00:00

This allows to include bits/syslog-decl.h in include/sys/syslog.h and
therefore be able to create the libc_hidden_builtin_proto (__syslog_chk)
prototype.

Reviewed-by: Siddhesh Poyarekar

misc/bits/select2.h: Clearly separate declaration from definitions

2023-07-05T14:59:48+00:00

The __fdelt_chk declaration needs to be available so that
libc_hidden_proto can be used while not redefining __FD_ELT.
Thus, misc/bits/select-decl.h is created to hold the corresponding
prototypes.

Reviewed-by: Siddhesh Poyarekar

misc/sys/cdefs.h: Create FORTIFY redirects for internal calls

2023-07-05T14:59:48+00:00

The __REDIRECT* macros are creating aliases which may lead to unwanted
PLT entries when fortification is enabled.
To prevent these entries, the REDIRECT alias should be set to point to the
existing __GI_* aliases.
This is done transparently by creating a __REDIRECT_FORTIFY* version of
these macros, that can be overwritten internally when necessary.

Reviewed-by: Siddhesh Poyarekar

Exclude routines from fortification

2023-07-05T14:59:48+00:00

Since the _FORTIFY_SOURCE feature uses some routines of Glibc, they need to
be excluded from the fortification.

On top of that:
 - some tests explicitly verify that some level of fortification works
   appropriately, we therefore shouldn't modify the level set for them.
 - some objects need to be build with optimization disabled, which
   prevents _FORTIFY_SOURCE to be used for them.

Assembler files that implement architecture specific versions of the
fortified routines were not excluded from _FORTIFY_SOURCE as there is no
C header included that would impact their behavior.

Reviewed-by: Siddhesh Poyarekar

tests: Replace various function calls with their x variant

2023-06-06T12:23:53+00:00

With fortification enabled, few function calls return result need to be
checked, has they get the __wur macro enabled.

Reviewed-by: Siddhesh Poyarekar

Fix all the remaining misspellings -- BZ 25337

2023-06-02T01:39:48+00:00

tests: fix warn unused results

2023-06-01T17:01:32+00:00

With fortification enabled, few function calls return result need to be
checked, has they get the __wur macro enabled.
Reviewed-by: Siddhesh Poyarekar

misc: Reformat Makefile.

2023-05-18T16:34:15+00:00

Reflow Makefile.
Sort using updated scripts/sort-makefile-lines.py.

Code generation is changed as routines are linked in sorted order
as expected.

No regressions on x86_64 and i686.

Reviewed-by: Siddhesh Poyarekar

misc: Reformat Makefile.

2023-05-16T11:19:28+00:00

Reflow Makefile.
Sort using scripts/sort-makefile-lines.py.

Code generation is changed as routines are linked in sorted order
as expected.

No regressions on x86_64 and i686.

Added Redirects to longdouble error functions [BZ #29033]

2023-05-10T18:59:48+00:00

This patch redirects the error functions to the appropriate
longdouble variants which enables the compiler to optimize
for the abi ieeelongdouble.

Signed-off-by: Sachin Monga