{"id":113048,"date":"2024-01-22T11:28:11","date_gmt":"2024-01-22T09:28:11","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/vypusk-standartnoj-si-biblioteki-picolibc-1-8-6"},"modified":"2024-01-22T11:28:11","modified_gmt":"2024-01-22T09:28:11","slug":"vypusk-standartnoj-si-biblioteki-picolibc-1-8-6","status":"publish","type":"post","link":"https:\/\/prohoster.info\/en\/blog\/news\/vypusk-standartnoj-si-biblioteki-picolibc-1-8-6","title":{"rendered":"Release of the standard C library PicoLibc 1.8.6","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"
The release of the standard C library PicoLibc 1.8.6 has been published, developed by Keith Packard (the leader of the X.Org project) for use on embedded devices with limited permanent storage and memory. During development, part of the code was borrowed from the newlib library of the Cygwin project and AVR Libc, which was developed for Atmel AVR microcontrollers. The PicoLibc code is distributed under the BSD license. The library supports builds for ARM (32-bit), Aarch64, i386, RISC-V, x86_64, m68k, and PowerPC architectures. <\/p>\n
Initially, the project developed under the name «newlib-nano» and aimed at reworking some resource-intensive functions of Newlib that were problematic to use on embedded devices with limited RAM. For instance, in PicoLibc, stdio functions are replaced with a compact version from the avrlibc library. The code has also been cleaned of components not used in the build for embedded devices that are not provided under the BSD license. An easier variant of the initialization code (crt0) has been added, and the implementation of calls has been transitioned from ‘struct _reent’ to a TLS (thread-local storage) mechanism. The Meson toolchain has been utilized for the build. <\/p>\n
In the new release: <\/p>\n
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Changes have been merged from Newlib 4.4.0, including support for the 'long double' type on i386, RISC-V, Aarch64, and x86_64 architectures, support for RISC-V Zfinx\/Zdinx extensions, the ability to use masks when inserting directories, implementation of a port for Xtensa processors, and separation of printf handlers into individual files to reduce size during linking.\n
Symbols '__eh_*' have been added to picolibc.ld for LLVM libunwind.\n
Experimental support for 32-bit SPARC systems has been included.\n
Support has been provided for target platforms with unusual floating-point types, which are now reflected in 32-, 64-, 80-, and 128-bit types in the picolibc code.\n
Support for the RISC architecture SuperH has been added.\n
Stack tracing has been improved for debugging exception code on RISC-V systems.\n
An option '-Dfast-bufio=true' has been added to enhance the efficiency of reading and writing when using bufio.\n
Public inline functions have been cleaned up for shared gnu_inline semantics.\n
Most fenv functions have been converted to use inline functions (gnu_inline) instead of regular ones for performance.\n
An alternative implementation of ctype has been created, which does not use the ctype array and performs direct value comparisons. <\/ul>\n