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6 commits

Author SHA1 Message Date
Xiang Xiao
c32b683085 !compiler: drop CONFIG_HAVE_LONG_LONG and require long long support
Every compiler supported by NuttX provides the "long long" types,
so the CONFIG_HAVE_LONG_LONG indirection is no longer useful.
Remove the option from include/nuttx/compiler.h and treat
"long long" as unconditionally available across the OS.

In addition to deleting the guard itself, this commit unconditionally
enables the long-long flavored helpers that used to be gated behind
it:

  - libs/libc/fixedmath: drop the soft-emulated b32/ub32 routines
    in lib_fixedmath.c (-261 lines) and trim the matching
    prototypes, Make.defs and CMakeLists.txt entries; keep only
    the long-long backed implementations.
  - include/sys/endian.h, include/strings.h, libs/libc/string
    /lib_ffsll.c, lib_flsll.c: always expose the 64-bit byte-swap
    and ffsll/flsll variants.
  - libs/libm/libm/lib_llround{,f,l}.c: drop the empty stubs.
  - libs/libc/stdlib (atoll, llabs, lldiv, strtoll/ull, rand48,
    strtold), libs/libc/stream (libvsprintf, libvscanf,
    libbsprintf, ultoa_invert), libs/libc/misc (crc64, crc64emac),
    libs/libc/inttypes/strtoimax, libs/libc/lzf, libs/libc/libc.csv,
    libs/libc/string (memset, vikmemcpy): remove the
    #ifdef CONFIG_HAVE_LONG_LONG branches.
  - include/{stddef.h,stdlib.h,fixedmath.h,sys/epoll.h,cxx/cstdlib,
    nuttx/audio/audio.h,nuttx/crc64.h,nuttx/lib/math.h,
    nuttx/lib/math32.h,nuttx/lib/stdbit.h}: same guard cleanup.
  - drivers/note/note_driver.c, fs/spiffs/src/spiffs.h,
    sched/irq/irq_procfs.c: drop their local guards as well.
  - Documentation/applications/netutils/ntpclient/index.rst:
    refresh the documentation snippet.

Signed-off-by: Xiang Xiao <xiaoxiang@xiaomi.com>
2026-05-19 16:21:28 +08:00
Alin Jerpelea
6b5dddd5d7 libs/libc: migrate to SPDX identifier
Most tools used for compliance and SBOM generation use SPDX identifiers
This change brings us a step closer to an easy SBOM generation.

Signed-off-by: Alin Jerpelea <alin.jerpelea@sony.com>
2024-10-01 12:25:52 +08:00
Nathan Hartman
ce20211357 Fix various typos in comments and documentation
Fix typos in these files:
    * Documentation/components/drivers/character/foc.rst
    * Documentation/guides/cpp_cmake.rst
    * Kconfig
    * arch/arm/src/imxrt/imxrt_lpspi.c
    * arch/arm/src/kinetis/kinetis_spi.c
    * arch/arm/src/kl/kl_spi.c
    * arch/arm/src/lpc31xx/lpc31_spi.c
    * arch/arm/src/nrf52/nrf52_radio.h
    * arch/arm/src/s32k1xx/s32k1xx_lpspi.c
    * arch/arm/src/stm32/Kconfig
    * arch/arm/src/stm32/stm32_adc.c
    * arch/arm/src/stm32/stm32_foc.c
    * arch/arm/src/stm32/stm32_foc.h
    * arch/arm/src/stm32/stm32_pwm.c
    * arch/arm/src/stm32/stm32_spi.c
    * arch/arm/src/stm32f0l0g0/stm32_spi.c
    * arch/arm/src/stm32f7/Kconfig
    * arch/arm/src/stm32f7/stm32_spi.c
    * arch/arm/src/stm32h7/Kconfig
    * arch/arm/src/stm32h7/stm32_allocateheap.c
    * arch/arm/src/stm32h7/stm32_fmc.c
    * arch/arm/src/stm32h7/stm32_fmc.h
    * arch/arm/src/stm32h7/stm32_pwm.c
    * arch/arm/src/stm32h7/stm32_qspi.c
    * arch/arm/src/stm32h7/stm32_spi.c
    * arch/arm/src/stm32l4/stm32l4_pwm.c
    * arch/arm/src/stm32l4/stm32l4_spi.c
    * arch/arm/src/stm32l5/Kconfig
    * arch/arm/src/stm32l5/stm32l5_spi.c
    * arch/renesas/src/rx65n/rx65n_dtc.c
    * arch/renesas/src/rx65n/rx65n_usbdev.c
    * arch/risc-v/src/rv32m1/rv32m1_serial.c
    * boards/arm/stm32/b-g431b-esc1/src/stm32_foc.c
    * boards/arm/stm32/nucleo-f103rb/src/stm32_foc_ihm07m1.c
    * boards/arm/stm32/nucleo-f302r8/src/stm32_foc_ihm07m1.c
    * boards/arm/stm32h7/nucleo-h743zi2/README.txt
    * boards/risc-v/rv32m1/rv32m1-vega/README.txt
    * boards/sim/sim/sim/scripts/Make.defs
    * drivers/1wire/1wire.c
    * drivers/1wire/1wire_internal.h
    * drivers/lcd/Kconfig
    * drivers/syslog/ramlog.c
    * fs/fat/Kconfig
    * libs/libc/debug/Kconfig
    * libs/libc/machine/Kconfig
    * libs/libc/stdio/lib_libvsprintf.c
    * libs/libc/stdlib/lib_div.c
    * libs/libc/stdlib/lib_ldiv.c
    * libs/libc/stdlib/lib_lldiv.c
    * libs/libdsp/lib_observer.c
2021-07-04 11:23:26 -05:00
Gregory Nutt
67ec3d7926 Remove CONFIG_CAN_PASS_STRUCT
This commit resolves issue #620:

Remove CONFIG_CAN_PASS_STRUCTS #620

The configuration option CONFIG_CAN_PASS_STRUCTS was added many years ago to support an old version of the SDCC compiler. That compiler is currently used only with the Z80 and Z180 targets. The limitation of that old compiler was that it could not pass structures or unions as either inputs or outputs. For example:

    #ifdef CONFIG_CAN_PASS_STRUCTS
    struct mallinfo mallinfo(void);
    #else
    int      mallinfo(FAR struct mallinfo *info);
    #endif

And even leads to violation of a few POSIX interfaces like:

    #ifdef CONFIG_CAN_PASS_STRUCTS
    int  sigqueue(int pid, int signo, union sigval value);
    #else
    int  sigqueue(int pid, int signo, FAR void *sival_ptr);
    #endif

This breaks the 1st INVIOLABLES rule:

Strict POSIX compliance
-----------------------

  o Strict conformance to the portable standard OS interface as defined at
    OpenGroup.org.
  o A deeply embedded system requires some special support.  Special
    support must be minimized.
  o The portable interface must never be compromised only for the sake of
    expediency.
  o Expediency or even improved performance are not justifications for
   violation of the strict POSIX interface

Also, it appears that the current SDCC compilers have resolve this issue and so, perhaps, this is no longer a problem: z88dk/z88dk#1132

NOTE:  This commit cannot pass the PR checks because it depends on matching changes to the apps/ directory.
2020-04-11 21:19:47 +01:00
Xiang Xiao
a8de37fbec Ensure all source code end with one and only one newline
by this command:
git ls-files -z | while IFS= read -rd '' f; do tail -c1 < "$f" | read -r _ || echo >> "$f"; done
2020-02-08 07:25:56 -06:00
Gregory Nutt
cf99fb40c9 This commit moves all of the libraries under a common directory called libs/. This most certainly break libcxx and uClibc++ for now.
Squashed commit of the following:

    libs/libxx:  Fix some confusing in naming.  If the directory is called libxx, then the library must be libxx.a (unless perhaps LIBCXX is selected).
    libs/:  Fix paths in moved library directories.
    libs:  Brute force move of libc, libnx, and libxx to libs.  Cannot yet build it in that configuration.
2018-05-29 13:21:26 -06:00
Renamed from libc/stdlib/lib_lldiv.c (Browse further)