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2024-05-07stdint.h: derive limits from __LONG_MAX, use common fast16 typesRich Felker1-20/+0
the bits file is retained, but as a single generic version, to allow for the unlikely future possibility of letting a new arch define something differently.
2024-05-07sys/reg.h: derive __WORDSIZE from __LONG_MAXRich Felker1-3/+0
this removes an otherwise-unnecessary bits header from most archs, replacing it with an empty generic version.
2024-05-07unistd.h: derive ILP32/LP64 macros from __LONG_MAX instead of arch bitsRich Felker1-2/+0
2024-02-22bits/syscall.h: add __NR_fchmodat2 from linux v6.6Gaël PORTAY1-0/+1
the linux fchmodat syscall lacks a flag argument that is necessary to implement the posix api, see linux commit 09da082b07bbae1c11d9560c8502800039aebcea fs: Add fchmodat2() linux commit 78252deb023cf0879256fcfbafe37022c390762b arch: Register fchmodat2, usually as syscall 452
2024-02-22bits/syscall.h: add cachestat from linux v6.4Gaël PORTAY1-0/+1
see linux commit cf264e1329fb0307e044f7675849f9f38b44c11a cachestat: implement cachestat syscall linux commit 946e697c69ffeeefdd84dad90eac307284df46be cachestat: wire up cachestat for other architectures
2024-02-22bits/syscall.h: add set_mempolicy_home_node from linux v5.17Gaël PORTAY1-0/+1
see linux commit c6018b4b254971863bd0ad36bb5e7d0fa0f0ddb0 mm/mempolicy: add set_mempolicy_home_node syscall linux commit 21b084fdf2a49ca1634e8e360e9ab6f9ff0dee11 mm/mempolicy: wire up syscall set_mempolicy_home_node
2024-02-22bits/syscall.h: add futex_waitv from linux v5.16Gaël PORTAY1-0/+1
see linux commit 039c0ec9bb77446d7ada7f55f90af9299b28ca49 futex,x86: Wire up sys_futex_waitv() linux commit ea7c45fde5aa3e761aaddb7902a31a95cb120e7b futex,arm: Wire up sys_futex_waitv() linux commit b3ff2881ba18b852f79f5476d7631940071f1adb MIPS: syscalls: Wire up futex_waitv syscall linux commit 6c122360cf2f4c5a856fcbd79b4485b7baec942a s390: wire up sys_futex_waitv system call linux commit a0eb2da92b715d0c97b96b09979689ea09faefe6 futex: Wireup futex_waitv syscall
2024-02-22bits/syscall.h: add process_mrelease from linux v5.15Rich Felker1-0/+1
see linux commit 884a7e5964e06ed93c7771c0d7cf19c09a8946f1 mm: introduce process_mrelease system call linux commit dce49103962840dd61423d7627748d6c558d58c5 mm: wire up syscall process_mrelease
2022-03-08bits/syscall.h: add landlock syscalls from linux v5.13Szabolcs Nagy1-0/+3
see linux commit a49f4f81cb48925e8d7cbd9e59068f516e984144 arch: Wire up Landlock syscalls linuxcommit 17ae69aba89dbfa2139b7f8024b757ab3cc42f59 Merge tag 'landlock_v34' of ... jmorris/linux-security Landlock provides for unprivileged application sandboxing. The goal of Landlock is to enable to restrict ambient rights (e.g. global filesystem access) for a set of processes. Landlock is inspired by seccomp-bpf but instead of filtering syscalls and their raw arguments, a Landlock rule can restrict the use of kernel objects like file hierarchies, according to the kernel semantic.
2022-03-08bits/syscall.h: add mount_setattr from linux v5.12Szabolcs Nagy1-0/+1
new syscall to change the properties of a mount or a mount tree using file descriptors which the new mount api is based on, see linux commit 2a1867219c7b27f928e2545782b86daaf9ad50bd fs: add mount_setattr()
2022-03-08bits/syscall.h: add epoll_pwait2 from linux v5.11Szabolcs Nagy1-0/+1
see linux commit b0a0c2615f6f199a656ed8549d7dce625d77aa77 epoll: wire up syscall epoll_pwait2 linux commit 58169a52ebc9a733aeb5bea857bc5daa71a301bb epoll: add syscall epoll_pwait2 epoll_wait with struct timespec timeout instead of int. no time32 variant.
2021-02-15bits/syscall.h: add process_madvise from linux v5.10Szabolcs Nagy1-0/+1
mainly added to linux to allow a central process management service in android to give MADV_COLD|PAGEOUT hints for other processes, see linux commit ecb8ac8b1f146915aa6b96449b66dd48984caacc mm/madvise: introduce process_madvise() syscall: an external memory hinting API
2020-11-29bits/syscall.h: add __NR_close_range from linux v5.9Szabolcs Nagy1-0/+1
see linux commit 9b4feb630e8e9801603f3cab3a36369e3c1cf88d arch: wire-up close_range() linux commit 278a5fbaed89dacd04e9d052f4594ffd0e0585de open: add close_range()
2020-09-09bits/syscall.h: add __NR_faccessat2 from linux v5.8Szabolcs Nagy1-0/+1
the linux faccessat syscall lacks a flag argument that is necessary to implement the posix api, see linux commit c8ffd8bcdd28296a198f237cc595148a8d4adfbe vfs: add faccessat2 syscall
2020-09-09add pidfd_getfd and openat2 syscall numbers from linux v5.6Szabolcs Nagy1-0/+2
also added clone3 on sh and m68k, on sh it's still missing (not yet wired up), but reserved so safe to add. see linux commit fddb5d430ad9fa91b49b1d34d0202ffe2fa0e179 open: introduce openat2(2) syscall linux commit 9a2cef09c801de54feecd912303ace5c27237f12 arch: wire up pidfd_getfd syscall linux commit 8649c322f75c96e7ced2fec201e123b2b073bf09 pid: Implement pidfd_getfd syscall linux commit e8bb2a2a1d51511e6b3f7e08125d52ec73c11139 m68k: Wire up clone3() syscall
2020-02-05remove legacy time32 timer[fd] syscalls from public syscall.hRich Felker1-4/+4
this extends commit 5a105f19b5aae79dd302899e634b6b18b3dcd0d6, removing timer[fd]_settime and timer[fd]_gettime. the timerfd ones are likely to have been used in software that started using them before it could rely on libc exposing functions.
2020-02-05remove further legacy time32 clock syscalls from public syscall.hRich Felker1-4/+4
this extends commit 5a105f19b5aae79dd302899e634b6b18b3dcd0d6, removing clock_settime, clock_getres, clock_nanosleep, and settimeofday.
2020-01-30remove legacy clock_gettime and gettimeofday from public syscall.hRich Felker1-2/+2
some nontrivial number of applications have historically performed direct syscalls for these operations rather than using the public functions. such usage is invalid now that time_t is 64-bit and these syscalls no longer match the types they are used with, and it was already harmful before (by suppressing use of vdso). since syscall() has no type safety, incorrect usage of these syscalls can't be caught at compile-time. so, without manually inspecting or running additional tools to check sources, the risk of such errors slipping through is high. this patch renames the syscalls on 32-bit archs to clock_gettime32 and gettimeofday_time32, so that applications using the original names will fail to build without being fixed. note that there are a number of other syscalls that may also be unsafe to use directly after the time64 switchover, but (1) these are the main two that seem to be in widespread use, and (2) most of the others continue to have valid usage with a null timeval/timespec argument, as the argument is an optional timeout or similar.
2019-12-30add clone3 syscall number from linux v5.3Szabolcs Nagy1-0/+1
the syscall number is reserved on all targets, but it is not wired up on all targets, see linux commit 8f6ccf6159aed1f04c6d179f61f6fb2691261e84 Merge tag 'clone3-v5.3' of ... brauner/linux linux commit 8f3220a806545442f6f26195bc491520f5276e7c arch: wire-up clone3() syscall linux commit 7f192e3cd316ba58c88dfa26796cf77789dd9872 fork: add clone3
2019-12-30add pidfd_open syscall number from linux v5.3Szabolcs Nagy1-0/+1
see linux commit 7615d9e1780e26e0178c93c55b73309a5dc093d7 arch: wire-up pidfd_open() linux commit 32fcb426ec001cb6d5a4a195091a8486ea77e2df pid: add pidfd_open()
2019-11-02move time_t and suseconds_t definitions to common alltypes.h.inRich Felker1-3/+0
now that all 32-bit archs have 64-bit time_t (and suseconds_t), the arch-provided _Int64 macro (long or long long, as appropriate) can be used to define them, and arch-specific definitions are no longer needed.
2019-11-02move time64 ioctl numbers to generic bits/ioctl.hRich Felker1-5/+0
now that all 32-bit archs have 64-bit time types, the values for the time-related ioctls can be shared. the mechanism for this is an arch/generic version of the bits header. archs which don't use the generic header still need to duplicate the definitions. x32, which does not use the new time64 values of the macros, already has its own overrides, so this commit does not affect it.
2019-11-02move time64 socket options from arch bits to top-level sys/socket.hRich Felker1-5/+0
now that all 32-bit archs have 64-bit time types, the values for the time-related socket option macros can be treated as universal for 32-bit archs. the sys/socket.h mechanism for this predates arch/generic and is instead in the top-level header. x32, which does not use the new time64 values of the macros, already has its own overrides, so this commit does not affect it.
2019-11-02switch all existing 32-bit archs to 64-bit time_tRich Felker8-20/+44
this commit preserves ABI fully for existing interface boundaries between libc and libc consumers (applications or libraries), by retaining existing symbol names for the legacy 32-bit interfaces and redirecting sources compiled against the new headers to alternate symbol names. this does not necessarily, however, preserve the pairwise ABI of libc consumers with one another; where they use time_t-derived types in their interfaces with one another, it may be necessary to synchronize updates with each other. the intent is that ABI resulting from this commit already be stable and permanent, but it will not be officially so until a release is made. changes to some header-defined types that do not play any role in the ABI between libc and its consumers may still be subject to change. mechanically, the changes made by this commit for each 32-bit arch are as follows: - _REDIR_TIME64 is defined to activate the symbol redirections in public headers - COMPAT_SRC_DIRS is defined in arch.mak to activate build of ABI compat shims to serve as definitions for the original symbol names - time_t and suseconds_t definitions are changed to long long (64-bit) - IPC_STAT definition is changed to add the IPC_TIME64 bit (0x100), triggering conversion of semid_ds, shmid_ds, and msqid_ds split low/high time bits into new time_t members - structs semid_ds, shmid_ds, msqid_ds, and stat are modified to add new 64-bit time_t/timespec members at the end, maintaining existing layout of other members. - socket options (SO_*) and ioctl (sockios) command macros are redefined to use the kernel's "_NEW" values. in addition, on archs where vdso clock_gettime is used, the VDSO_CGT_SYM macro definition in syscall_arch.h is changed to use a new time64 vdso function if available, and a new VDSO_CGT32_SYM macro is added for use as fallback on kernels lacking time64.
2019-10-17move pthread types out of per-arch alltypes.hRich Felker1-8/+0
policy has long been that these definitions are purely a function of whether long/pointer is 32- or 64-bit, and that they are not allowed to vary per-arch. move the definition to the shared alltypes.h.in fragment, using integer constant expressions in terms of sizeof to vary the array dimensions appropriately. I'm not sure whether this is more or less ugly than using preprocessor conditionals and two sets of definitions here, but either way is a lot less ugly than repeating the same thing for every arch.
2019-10-17define LONG_MAX via arch alltypes.h, strip down bits/limits.hRich Felker2-7/+2
LLONG_MAX is uniform for all archs we support and plenty of header and code level logic assumes it is, so it does not make sense for limits.h bits mechanism to pretend it's variable. LONG_BIT can be defined in terms of LONG_MAX; there's no reason to put it in bits. by moving LONG_MAX definition to __LONG_MAX in alltypes.h and moving LLONG_MAX out of bits, there are now no plain-C limits that are defined in the bits header, so the bits header only needs to be included in the POSIX or extended profiles. this allows the feature test macro logic to be removed from the bits header, facilitating a long-term goal of getting such logic out of bits. having __LONG_MAX in alltypes.h will allow further generalization of headers. archs without a constant PAGESIZE no longer need bits/limits.h at all.
2019-10-17move __BYTE_ORDER definition to alltypes.hRich Felker2-5/+6
this change is motivated by the intersection of several factors. presently, despite being a nonstandard header, endian.h is exposing the unprefixed byte order macros and functions only if _BSD_SOURCE or _GNU_SOURCE is defined. this is to accommodate use of endian.h from other headers, including bits headers, which need to define structure layout in terms of endianness. with time64 switch-over, even more headers will need to do this. at the same time, the resolution of Austin Group issue 162 makes endian.h a standard header for POSIX-future, requiring that it expose the unprefixed macros and the functions even in standards-conforming profiles. changes to meet this new requirement would break existing internal usage of endian.h by causing it to violate namespace where it's used. instead, have the arch's alltypes.h define __BYTE_ORDER, either as a fixed constant or depending on the right arch-specific predefined macros for determining endianness. explicit literals 1234 and 4321 are used instead of __LITTLE_ENDIAN and __BIG_ENDIAN so that there's no danger of getting the wrong result if a macro is undefined and implicitly evaluates to 0 at the preprocessor level. the powerpc (32-bit) bits/endian.h being removed had logic for varying endianness, but our powerpc arch has never supported that and has always been big-endian-only. this logic is not carried over to the new __BYTE_ORDER definition in alltypes.h.
2019-10-17remove per-arch definitions for va_listRich Felker1-3/+0
now that commit f7f1079796abc6f97c69521d2334e9c7d3945dd8 removed the legacy i386 conditional definition, va_list is in no way arch-specific, and has no reason to be in the future. move it to the shared part of alltypes.h.in
2019-09-11add new syscall numbers from linux v5.2Szabolcs Nagy1-0/+6
new mount api syscalls were added, same numers on all targets, see linux commit a07b20004793d8926f78d63eb5980559f7813404 vfs: syscall: Add open_tree(2) to reference or clone a mount linux commit 2db154b3ea8e14b04fee23e3fdfd5e9d17fbc6ae vfs: syscall: Add move_mount(2) to move mounts around linux commit 24dcb3d90a1f67fe08c68a004af37df059d74005 vfs: syscall: Add fsopen() to prepare for superblock creation linux commit ecdab150fddb42fe6a739335257949220033b782 vfs: syscall: Add fsconfig() for configuring and managing a context linux commit 93766fbd2696c2c4453dd8e1070977e9cd4e6b6d vfs: syscall: Add fsmount() to create a mount for a superblock linux commit cf3cba4a429be43e5527a3f78859b1bfd9ebc5fb vfs: syscall: Add fspick() to select a superblock for reconfiguration linux commit 9c8ad7a2ff0bfe58f019ec0abc1fb965114dde7d uapi, x86: Fix the syscall numbering of the mount API syscalls [ver #2] linux commit d8076bdb56af5e5918376cd1573a6b0007fc1a89 uapi: Wire up the mount API syscalls on non-x86 arches [ver #2]
2019-08-02move IPC_STAT definition to a new bits/ipcstat.h fileRich Felker1-0/+1
otherwise, 32-bit archs that could otherwise share the generic bits/ipc.h would need to duplicate the struct ipc_perm definition, obscuring the fact that it's the same. sysvipc is not widely used and these headers are not commonly included, so there is no performance gain to be had by limiting the number of indirectly included files here. files with the existing time32 definition of IPC_STAT are added to all current 32-bit archs now, so that when it's changed the change will show up as a change rather than addition of a new file where it's less obvious that the value is changing vs the generic one that was used before.
2019-07-29duplicate generic bits/msg.h for each arch using it, in prep to changeRich Felker1-0/+15
2019-07-29duplicate generic bits/sem.h for each arch using it, in prep to changeRich Felker1-0/+16
2019-07-29remove trailing newlines from various versions of bits/shm.hRich Felker1-1/+0
2019-07-29duplicate generic bits/shm.h for each arch using it, in prep to changeRich Felker1-0/+28
there are more archs sharing the generic 64-bit version of the struct, which is uniform and much more reasonable, than sharing the current "generic" one, and depending on how time64 sysvipc is done for 32-bit archs, even more may be sharing the "64-bit version" in the future. so, duplicate the current generic to all archs using it (arm, i386, m68k, microblaze, or1k) so that the generic can be changed freely. this is recorded as its own commit mainly as a hint to git tooling, to assist in copy/move tracking.
2019-07-01add new syscall numbers from linux v5.1Szabolcs Nagy1-0/+26
syscall numbers are now synced up across targets (starting from 403 the numbers are the same on all targets other than an arch specific offset) IPC syscalls sem*, shm*, msg* got added where they were missing (except for semop: only semtimedop got added), the new semctl, shmctl, msgctl imply IPC_64, see linux commit 0d6040d4681735dfc47565de288525de405a5c99 arch: add split IPC system calls where needed new 64bit time_t syscall variants got added on 32bit targets, see linux commit 48166e6ea47d23984f0b481ca199250e1ce0730a y2038: add 64-bit time_t syscalls to all 32-bit architectures new async io syscalls got added, see linux commit 2b188cc1bb857a9d4701ae59aa7768b5124e262e Add io_uring IO interface linux commit edafccee56ff31678a091ddb7219aba9b28bc3cb io_uring: add support for pre-mapped user IO buffers a new syscall got added that uses the fd of /proc/<pid> as a stable handle for processes: allows sending signals without pid reuse issues, intended to eventually replace rt_sigqueueinfo, kill, tgkill and rt_tgsigqueueinfo, see linux commit 3eb39f47934f9d5a3027fe00d906a45fe3a15fad signal: add pidfd_send_signal() syscall on some targets (arm, m68k, s390x, sh) some previously missing syscall numbers got added as well.
2019-03-13arm: add io_pgetevents syscall number from v4.19Szabolcs Nagy1-0/+1
wired up in linux commit 73aeb2cbcdc9be391b3d32a55319a59ce425426f
2018-12-09add io_pgetevents and rseq syscall numbers from linux v4.18Szabolcs Nagy1-0/+1
io_pgetevents is new in linux commit 7a074e96dee62586c935c80cecd931431bfdd0be rseq is new in linux commit d7822b1e24f2df5df98c76f0e94a5416349ff759
2018-09-20add arm and sh bits/ptrace.hSzabolcs Nagy1-0/+25
These should have been added in commit df6d9450ea19fd71e52cf5cdb4c85beb73066394 that added target specific PTRACE_ macros, but somehow got missed.
2018-02-22arm: add get_tls syscall from linux v4.15Szabolcs Nagy1-0/+1
for systems without tp register or kuser helper, new in linux commit 8fcd6c45f5a65621ec809b7866a3623e9a01d4ed
2017-11-05add statx syscall numbers from linux v4.11Szabolcs Nagy1-0/+1
statx was added in linux commit a528d35e8bfcc521d7cb70aaf03e1bd296c8493f (there is no libc wrapper yet and microblaze and sh misses the number).
2017-09-06make syscall.h consistent with linuxSzabolcs Nagy1-0/+2
most of the found naming differences don't matter to musl, because internally it unifies the syscall names that vary across targets, but for external code the names should match the kernel uapi. aarch64: __NR_fstatat is called __NR_newfstatat in linux. __NR_or1k_atomic got mistakenly copied from or1k. arm: __NR_arm_sync_file_range is an alias for __NR_sync_file_range2 __NR_fadvise64_64 is called __NR_arm_fadvise64_64 in linux, the old non-arm name is kept too, it should not cause issues. (powerpc has similar nonstandard fadvise and it uses the normal name.) i386: __NR_madvise1 was removed from linux in commit 303395ac3bf3e2cb488435537d416bc840438fcb 2011-11-11 microblaze: __NR_fadvise, __NR_fstatat, __NR_pread, __NR_pwrite had different name in linux. mips: __NR_fadvise, __NR_fstatat, __NR_pread, __NR_pwrite, __NR_select had different name in linux. mipsn32: __NR_fstatat is called __NR_newfstatat in linux. or1k: __NR__llseek is called __NR_llseek in linux. the old name is kept too because that's the name musl uses internally. powerpc: __NR_{get,set}res{gid,uid}32 was never present in powerpc linux. __NR_timerfd was briefly defined in linux but then got renamed.
2017-08-29arm: add HWCAP_ARM_ hwcap macrosSzabolcs Nagy1-0/+24
Glibc renamed the linux uapi HWCAP_* macros to HWCAP_ARM_* so have both variants in case some code depends on it. (The HWCAP2_ macros are not defined in glibc currently so those only have the linux uapi variant.)
2017-02-22allow page size to vary on armRich Felker1-1/+0
the ABI for arm was silently changed at some point to allow page sizes other than 4k; traditional binaries built with only 4k-aligned offsets between load segments cannot run on such systems, but newer binutils versions use 64k offset alignment. while larger page size is undesirable for various reasons, users have encountered hardware and/or kernels that lock the page size to a larger value, so follow the new ABI and allow it to vary.
2016-12-29add pkey_{mprotect,alloc,free} syscalls from linux v4.9Szabolcs Nagy1-0/+3
see linux commit e8c24d3a23a469f1f40d4de24d872ca7023ced0a and linux Documentation/x86/protection-keys.txt
2016-10-20add bits/hwcap.h and include it in sys/auxv.hSzabolcs Nagy1-0/+29
aarch64, arm, mips, mips64, mipsn32, powerpc, powerpc64 and sh have cpu feature bits defined in linux for AT_HWCAP auxv entry, so expose those in sys/auxv.h it seems the mips hwcaps were never exposed to userspace neither by linux nor by glibc, but that's most likely an oversight.
2016-07-03make brace placement in public header typedef'd structs consistentRich Felker1-2/+1
commit befa5866ee30d09c0c96e88af2eabff5911342ea performed this change for struct definitions that did not also involve typedef, but omitted the latter.
2016-07-03make brace placement in public header struct definitions consistentRich Felker1-2/+1
placing the opening brace on the same line as the struct keyword/tag is the style I prefer and seems to be the prevailing practice in more recent additions. these changes were generated by the command: find include/ arch/*/bits -name '*.h' \ -exec sed -i '/^struct [^;{]*$/{N;s/\n/ /;}' {} + and subsequently checked by hand to ensure that the regex did not pick up any false positives.
2016-07-03fix FIOQSIZE in arm ioctl.hSzabolcs Nagy1-0/+2
arm ioctl.h is the same as the generic one except this macro, so a workaround solution is used to avoid another ioctl.h copy.
2016-06-09add preadv2 and pwritev2 syscall numbers for linux v4.6Szabolcs Nagy1-0/+2
the syscalls take an additional flag argument, they were added in commit f17d8b35452cab31a70d224964cd583fb2845449 and a RWF_HIPRI priority hint flag was added to linux/fs.h in 97be7ebe53915af504fb491fb99f064c7cf3cb09. the syscall is not allocated for microblaze and sh yet.
2016-05-12deduplicate __NR_* and SYS_* syscall number definitionsBobby Bingham1-349/+0
generated by cgit v1.1 at 2024-11-04 23:27:43 +0000