glibc/Makeconfig, branch master

tunables: sort tunables list (BZ 30027)

2024-06-12T18:45:18Z

Sort tunables list at the time it's generated. Note: adding new tunables will cause other tunable IDs to change, but that was the case before anyway. POSIX does not guarantee the order of "foo in bar" AWK operators, so the order was indeterminate before anyway. Even depending on the order to be the same across multiple calls, such as in this script, is undefined, so sorting the list resolves that also. Note that sorting is not dependent on the user's locale.

math: Add support for auto static math tests

2024-05-21T19:53:27Z

It basically copy the already in place rules for dynamic tests for auto-generated math functions for all support types. To avoid the need to duplicate .inc files, a .SECONDEXPANSION rules is adeed for the gen-libm-test.py generation. New tests are added on the new rules 'libm-test-funcs-auto-static', 'libm-test-funcs-noauto-static', and 'libm-test-funcs-narrow-static'; similar to the non-static counterparts. To avoid add extra build and disk requirement, the new math static tests are only enable with a new define 'build-math-static-tests'. Reviewed-by: H.J. Lu

Compile libmvec with -fno-math-errno

2024-05-21T13:38:22Z

Rounding intrinsics may not be inlined without -fno-math-errno. libmvec is free to do what it likes with errno, so disable it for better performance. Tested with no regression on aarch64 and x86_64. Reviewed-by: Szabolcs Nagy

Force DT_RPATH for --enable-hardcoded-path-in-tests

2024-05-10T03:49:31Z

On Fedora 40/x86-64, linker enables --enable-new-dtags by default which generates DT_RUNPATH instead of DT_RPATH. Unlike DT_RPATH, DT_RUNPATH only applies to DT_NEEDED entries in the executable and doesn't applies to DT_NEEDED entries in shared libraries which are loaded via DT_NEEDED entries in the executable. Some glibc tests have libstdc++.so.6 in DT_NEEDED, which has libm.so.6 in DT_NEEDED. When DT_RUNPATH is generated, /lib64/libm.so.6 is loaded for such tests. If the newly built glibc is older than glibc 2.36, these tests fail with assert/tst-assert-c++: /export/build/gnu/tools-build/glibc-gitlab-release/build-x86_64-linux/libc.so.6: version `GLIBC_2.36' not found (required by /lib64/libm.so.6) assert/tst-assert-c++: /export/build/gnu/tools-build/glibc-gitlab-release/build-x86_64-linux/libc.so.6: version `GLIBC_ABI_DT_RELR' not found (required by /lib64/libm.so.6) Pass -Wl,--disable-new-dtags to linker when building glibc tests with --enable-hardcoded-path-in-tests. This fixes BZ #31719. Signed-off-by: H.J. Lu

Add crt1-2.0.o for glibc 2.0 compatibility tests

2024-05-06T14:49:40Z

Starting from glibc 2.1, crt1.o contains _IO_stdin_used which is checked by _IO_check_libio to provide binary compatibility for glibc 2.0. Add crt1-2.0.o for tests against glibc 2.0. Define tests-2.0 for glibc 2.0 compatibility tests. Add and update glibc 2.0 compatibility tests for stderr, matherr and pthread_kill. Reviewed-by: Carlos O'Donell

Use crtbeginT.o and crtend.o for non-PIE static executables

2024-04-08T16:25:36Z

When static PIE is enabled by default, we shouldn't use crtbeginS.o and crtendS.o for non-PIE static executables. Check $($(@F)-no-pie) to use crtbeginT.o and crtend.o to create non-PIE static executables. Reviewed-by: Sunil K Pandey

Update copyright dates with scripts/update-copyrights

2024-01-01T18:53:40Z

crypt: Remove libcrypt support

2023-10-30T16:03:59Z

All the crypt related functions, cryptographic algorithms, and make requirements are removed, with only the exception of md5 implementation which is moved to locale folder since it is required by localedef for integrity protection (libc's locale-reading code does not check these, but localedef does generate them). Besides thec code itself, both internal documentation and the manual is also adjusted. This allows to remove both --enable-crypt and --enable-nss-crypt configure options. Checked with a build for all affected ABIs. Co-authored-by: Zack Weinberg Reviewed-by: Carlos O'Donell

Remove 'shadow' and merge into 'nss'

2023-10-24T10:30:59Z

The majority of shadow routines are entry points for nss functionality. This commit removes the 'shadow' subdirectory and moves all functionality and tests to 'nss'. References to shadow/ are accordingly changed. Reviewed-by: Adhemerval Zanella

Remove 'pwd' and merge into 'nss'

2023-10-24T10:30:59Z

The majority of pwd routines are entry points for nss functionality. This commit removes the 'pwd' subdirectory and moves all functionality and tests to 'nss'. References to pwd/ are accordingly changed. Reviewed-by: Adhemerval Zanella