glibc/assert, branch master

Update copyright dates with scripts/update-copyrights

2024-01-01T18:53:40Z

assert: Decorate error message buffer

2023-11-07T13:27:44Z

Reviewed-by: DJ Delorie

tests: replace fgets by xfgets

2023-06-13T23:59:08Z

With fortification enabled, fgets calls return result needs to be checked, has it gets the __wur macro enabled. Reviewed-by: Siddhesh Poyarekar

assert: Reformat Makefile.

2023-05-18T16:56:45Z

Reflow all long lines adding comment terminators. Sort all reflowed text using scripts/sort-makefile-lines.py. No code generation changes observed in binary artifacts. No regressions on x86_64 and i686.

Use __builtin_FILE instead of FILE in assert in C++.

2023-02-10T17:12:40Z

Likewise use __builtin_LINE instead of __LINE__. When building C++, inline functions are required to have the exact same sequence of tokens in every translation unit. But __FILE__ token, when used in a header file, does not necessarily expand to the exact same string literal, and that may cause compilation failure when C++ modules are being used. (It would also cause unpredictable output on assertion failure at runtime, but this rarely matters in practice.) For example, given the following sources: // a.h #include inline void fn () { assert (0); } // a.cc #include "a.h" // b.cc #include "foo/../a.h" preprocessing a.cc will yield a call to __assert_fail("0", "a.h", ...) but b.cc will yield __assert_fail("0", "foo/../a.h", ...)

Update copyright dates with scripts/update-copyrights

2023-01-06T21:14:39Z

Use atomic_exchange_release/acquire

2022-09-26T15:58:08Z

Rename atomic_exchange_rel/acq to use atomic_exchange_release/acquire since these map to the standard C11 atomic builtins. Reviewed-by: Adhemerval Zanella

Do not define static_assert or thread_local in headers for C2x

2022-09-07T18:39:28Z

C2x makes static_assert and thread_local into keywords, removing the definitions as macros in assert.h and threads.h. Thus, disable those macros in those glibc headers for C2x. The disabling is done based on a combination of language version and __GNUC_PREREQ, *not* based on __GLIBC_USE (ISOC2X), on the principle that users of the header (when requesting C11 or later APIs - not assert.h for C99 and older API versions) should always have the names static_assert or thread_local available after inclusion of the header, whether as a keyword or as a macro. Thus, when using a compiler without the keywords (whether an older compiler, possibly in C2x mode, or _GNU_SOURCE with any compiler but in an older language mode, for example) the macros should be defined, even when C2x APIs have been requested. The __GNUC_PREREQ conditionals here may well need updating with the versions of other compilers that gained support for these keywords in C2x mode. Tested for x86_64.

assert: Do not use stderr in libc-internal assert

2022-08-03T09:43:04Z

Redirect internal assertion failures to __libc_assert_fail, based on based on __libc_message, which writes directly to STDERR_FILENO and calls abort. Also disable message translation and reword the error message slightly (adjusting stdlib/tst-bz20544 accordingly). As a result of these changes, malloc no longer needs its own redefinition of __assert_fail. __libc_assert_fail needs to be stubbed out during rtld dependency analysis because the rtld rebuilds turn __libc_assert_fail into __assert_fail, which is unconditionally provided by elf/dl-minimal.c. This change is not possible for the public assert macro and its __assert_fail function because POSIX requires that the diagnostic is written to stderr. Reviewed-by: Adhemerval Zanella

Update copyright dates with scripts/update-copyrights

2022-01-01T19:40:24Z

I used these shell commands: ../glibc/scripts/update-copyrights $PWD/../gnulib/build-aux/update-copyright (cd ../glibc && git commit -am"[this commit message]") and then ignored the output, which consisted lines saying "FOO: warning: copyright statement not found" for each of 7061 files FOO. I then removed trailing white space from math/tgmath.h, support/tst-support-open-dev-null-range.c, and sysdeps/x86_64/multiarch/strlen-vec.S, to work around the following obscure pre-commit check failure diagnostics from Savannah. I don't know why I run into these diagnostics whereas others evidently do not. remote: *** 912-#endif remote: *** 913: remote: *** 914- remote: *** error: lines with trailing whitespace found ... remote: *** error: sysdeps/unix/sysv/linux/statx_cp.c: trailing lines

glibc/assert, branch master

Update copyright dates with scripts/update-copyrights

assert: Decorate error message buffer

tests: replace fgets by xfgets

assert: Reformat Makefile.

Use __builtin_FILE instead of __FILE__ in assert in C++.

Update copyright dates with scripts/update-copyrights

Use atomic_exchange_release/acquire

Do not define static_assert or thread_local in headers for C2x

assert: Do not use stderr in libc-internal assert

Update copyright dates with scripts/update-copyrights

Use __builtin_FILE instead of FILE in assert in C++.