aboutsummaryrefslogtreecommitdiff
path: root/arch (follow)
Commit message (Expand)AuthorAgeFilesLines
* add sh syscall numbers from linux v4.8•••sh was updated in linux commit 74bdaa611fa69368fb4032ad437af073d31116bd to have numbers for new syscalls. Szabolcs Nagy2016-10-201-0/+14
* fix preadv2 and pwritev2 syscall numbers on x32 for linux v4.8•••the numbers were wrong in musl, but they were also wrong in the kernel and got fixed in v4.8 commit 3ebfd81f7fb3e81a754e37283b7f38c62244641a Szabolcs Nagy2016-10-201-2/+2
* microblaze: add syscall numbers from linux v4.7•••userfaultfd, membarrier and mlock2 syscalls got wired up in linux commit fbce3befd60d40639bf3c6b60f7477b2f988f92d Szabolcs Nagy2016-08-301-0/+3
* fix pread/pwrite syscall calling convention on sh•••despite sh not generally using register-pair alignment for 64-bit syscall arguments, there are arch-specific versions of the syscall entry points for pread and pwrite which include a dummy argument for alignment before the 64-bit offset argument. Rich Felker2016-08-111-0/+1
* fix regression in tcsetattr on all mips archs•••revert commit 8c316e9e49d37ad92c2e7493e16166a2afca419f. it was wrong and does not match how the kernel API works. Rich Felker2016-07-133-9/+9
* remove or1k version of sem.h•••It's identical to the generic version, after evaluating the endian preprocessor checks in the generic version. Bobby Bingham2016-07-061-11/+0
* make brace placement in public header typedef'd structs consistent•••commit befa5866ee30d09c0c96e88af2eabff5911342ea performed this change for struct definitions that did not also involve typedef, but omitted the latter. Rich Felker2016-07-038-18/+9
* make brace placement in public header struct definitions consistent•••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. Rich Felker2016-07-0344-108/+54
* format mips bits/termios.h consistently mips64 and n32 versions•••with this change, all three files are identical. Rich Felker2016-07-031-2/+1
* fix CBAUDEX in powerpc termios.h•••it seems it was a typo. Szabolcs Nagy2016-07-032-2/+2
* fix TCS* definitions in mips termios.h•••these were incorrectly using the generic definitions. Szabolcs Nagy2016-07-033-9/+9
* fix mips termios.h macro exposure/namespace issues•••same changes to the defined macros as in powerpc and generic bits. Szabolcs Nagy2016-07-033-45/+42
* fix powerpc termios.h macro exposure/namespace issues•••same changes as in the generic header. and BOTHER and IBSHIFT were removed (present in linux uapi but not in glibc) and TIOCSER_TEMT was added (present in glibc). Szabolcs Nagy2016-07-032-24/+24
* fix generic termios.h macro exposure/namespace issues•••add EXTA, EXTB, CIBAUD, CMSPAR, XCASE macros and hide them as well as CBAUD, ECHOCTL, ECHOPRT, ECHOKE, FLUSHO, PENDIN in standard mode. the new macros are both in glibc termios.h and in linux asm/termbits.h, the later also contains IBSHIFT and BOTHER, those were not added. these are not standard macros, but some of them are in the reserved namespace so could be exposed, the ones which are not reserved are CIBAUD, CMSPAR and XCASE (which was removed in issue 6), the rest got hidden to be consistent with glibc. Szabolcs Nagy2016-07-031-9/+14
* fix FIOQSIZE in arm ioctl.h•••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. Szabolcs Nagy2016-07-033-0/+4
* remove termios2 related ioctls from sh ioctl.h•••musl does not define these on other targets either. Szabolcs Nagy2016-07-031-4/+0
* fix TIOCMSET in mips ioctl.h•••it seems it was a typo. Szabolcs Nagy2016-07-033-3/+3
* fix mips, mips64, mipsn32 TIOCM_* macros in ioctl.h•••TIOCM_ macros were wrongly using the asm-generic/termios.h definitions instead of the mips specific ones from asm/termios.h Szabolcs Nagy2016-07-033-42/+42
* remove mips and powerpc ioctls that are missing from linux uapi•••mips and powerpc use their own asm/ioctls.h, not the asm-generic/ioctls.h and they lack termiox macros that are available on other targets. see kernel commit 1d65b4a088de407e99714fdc27862449db04fb5c Szabolcs Nagy2016-07-035-31/+0
* add missing TIOC* macros to ioctl.h•••these are defined in linux asm/ioctls.h. (powerpc64 and powerpc bits/ioctl.h are now identical) Szabolcs Nagy2016-07-037-3/+40
* add missing SIOCSIFNAME from linux/sockios.h to ioctl.h•••glibc ioctl.h has it too. Szabolcs Nagy2016-07-037-0/+7
* remove ioctl macros that were removed from linux uapi•••TIOCTTYGSTRUCT, TIOCGHAYESESP, TIOCSHAYESESP and TIOCM_MODEM_BITS were removed from the linux uapi and not present in glibc ioctl.h Szabolcs Nagy2016-07-037-32/+0
* use the generic ioctl.h for x86_64, x32 and aarch64•••they were slightly different in musl, but should be the same: the linux uapi and glibc headers are not different. Szabolcs Nagy2016-07-033-607/+0
* add consistent reserved fields in mips64/n32 termios structures•••the (unused) speed fields were omitted when these ports were first added (within this release cycle, so not present in any release yet) in accordance with how glibc defines the structure on mips archs. however their omission does not match existing musl practice/intent. glibc provides its own, mostly-unified termios structure definition and performs translation in userspace to match the kernel structure for the arch, but has gratuitous differences on a few archs like mips, presumably as a result of historical mistakes. some other libcs use the kernel definitions directly. musl essentially does that, by matching the kernel layout in the part of the structure the kernel will read/write, but leaves additional space at the end for extensibility. these are nominally the (nonstandard) speed fields and (on most archs) extra c_cc elements, but since they are not used they could be repurposed if there's ever a need. Rich Felker2016-07-032-0/+4
* fix posix_fadvise syscall args on powerpc, unify with arm fix•••commit 6d38c9cf80f47623e5e48190046673bbd0dc410b provided an arm-specific version of posix_fadvise to address the alternate argument order the kernel expects on arm, but neglected to address that powerpc (32-bit) has the same issue. instead of having arch variant files in duplicate, simply put the alternate version in the top-level file under the control of a macro defined in syscall_arch.h. Rich Felker2016-07-012-0/+4
* add preadv2 and pwritev2 syscall numbers for linux v4.6•••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. Szabolcs Nagy2016-06-0911-0/+22
* deduplicate __NR_* and SYS_* syscall number definitionsBobby Bingham2016-05-1216-5283/+885
* x32: eliminate __X32_SYSCALL_BIT constantBobby Bingham2016-05-121-317/+316
* x32: remove arch-specific syscall remapping•••These system calls are already all remapped in an arch-agnostic manner in src/internal/syscall.h Bobby Bingham2016-05-121-20/+0
* fix spurious trailing whitespace in powerpc & powerpc64 bits/errno.hRich Felker2016-05-082-2/+2
* add powerpc64 portBobby Bingham2016-05-0828-0/+1907
* add mips n32 port (ILP32 ABI for mips64)•••based on patch submitted by Jaydeep Patil, with minor changes. Rich Felker2016-04-1831-0/+2009
* add support for mips and mips64 r6 isa•••mips32r6 and mips64r6 are actually new isas at both the asm source and opcode levels (pre-r6 code cannot run on r6) and thus need to be treated as a new subarch. the following changes are made, some of which yield code generation improvements for non-r6 targets too: - add subarch logic in configure script and reloc.h files for dynamic linker name. - suppress use of .set mips2 asm directives (used to allow mips2 atomic instructions on baseline mips1 builds; the kernel has to emulate them on mips1) except when actually needed. they cause wrong instruction encodings on r6, and pessimize inlining on at least some compilers. - only hard-code sync instruction encoding on mips1. - use "ZC" constraint instead of "m" constraint for llsc memory operands on r6, where the ll/sc instructions no longer accept full 16-bit offsets. - only hard-code rdhwr instruction encoding with .word on targets (pre-r2) where it may need trap-and-emulate by the kernel. otherwise, just use the instruction mnemonic, and allow an arbitrary destination register to be used. Rich Felker2016-04-036-22/+58
* fix regression disabling use of pause instruction for x86 a_spin•••commits e24984efd5c6ac5ea8e6cb6cd914fa8435d458bc and 16b55298dc4b6a54d287d7494e04542667ef8861 inadvertently disabled the a_spin implementations for i386, x86_64, and x32 by defining a macro named a_pause instead of a_spin. this should not have caused any functional regression, but it inhibited cpu relaxation while spinning for locks. bug reported by George Kulakowski. Rich Felker2016-03-293-3/+3
* add copy_file_range syscall numbers from linux v4.5•••it was introduced for offloading copying between regular files in linux commit 29732938a6289a15e907da234d6692a2ead71855 (microblaze and sh does not yet have the syscall number.) Szabolcs Nagy2016-03-199-0/+18
* mips64: add recent linux syscall numbers•••add userfaultfd, membarrier and mlock2 system call numbers. Szabolcs Nagy2016-03-191-0/+6
* deduplicate bits/mman.h•••currently five targets use the same mman.h constants and the rest share most constants too, so move them to sys/mman.h before the bits/mman.h include where the differences can be corrected by redefinition of the macros. this fixes two minor bugs: POSIX_MADV_DONTNEED was wrong on most targets (it should be the same as MADV_DONTNEED), and sh defined the x86-only MAP_32BIT mmap flag. Szabolcs Nagy2016-03-1812-617/+25
* correct pointer types for a_ll_p and a_sc_p primitives on mips64•••these changes should not affect generated code, but they reflect that the underlying objects operated on by a_cas_p are supposed to have type volatile void *, not volatile long. in theory a compiler could treat the effective type mismatch in the "m" memory operands as undefined behavior. Rich Felker2016-03-111-4/+4
* make mips64 a_sc_p atomic primitive's asm constraints work with clang•••apparently clang does not accept matching-register input and output constraints that differ in size (32-bit vs 64-bit). based on patch by Jaydeep Patil. Rich Felker2016-03-111-1/+1
* add powerpc soft-float support•••Some PowerPC CPUs (e.g. Freescale MPC85xx) have a completely different instruction set for floating point operations (SPE). Executing regular PowerPC floating point instructions results in "Illegal instruction" errors. Make it possible to run these devices in soft-float mode. Felix Fietkau2016-03-062-1/+12
* add mips64 port•••patch by Mahesh Bodapati and Jaydeep Patil of Imagination Technologies. Rich Felker2016-03-0632-0/+2171
* add sched_getcpu vDSO support•••This brings the call to an actually usable speed. Quick unscientific benchmark: 14ns : 102ns :: vDSO : syscall Nathan Zadoks2016-03-021-0/+2
* make aarch64 atomic_arch.h report that it defines pointer-sized ll/sc•••at present this is done only for consistency, since this file defines its own a_cas_p rather than using the new generic one from atomic.h added in commit 225f6a6b5b7173b6655e4f5d49b5b9fea70bf3bb. these definitions may however be useful if we ever need to add other pointer-sized atomic operations. Rich Felker2016-02-231-0/+2
* remove workaround for broken mips assemblers•••the workaround was for a bug that botched .gpword references to local labels, applying a nonsensical random offset of -0x4000 to them. this reverses commit 5e396fb996a80b035d0f6ecf7fed50f68aa3ebb7 and a removes a similar hack that was added to syscall_cp.s in the later commit 756c8af8589265e99e454fe3adcda1d0bc5e1963. it turns out one additional instance of the same idiom, the GETFUNCSYM macro in arch/mips/reloc.h, was still affected by the assembler bug and does not admit an easy workaround without making assumptions about how the macro is used. the previous workarounds made static linking work but left the early-stage dynamic linker broken and thus had limited usefulness. instead, affected users (using binutils versions older than 2.20) will need to fix the bug on the binutils side; the trivial patch is commit 453f5985b13e35161984bf1bf657bbab11515aa4 in the binutils-gdb repository. Rich Felker2016-02-081-4/+1
* better a_sc inline asm constraint on aarch64 and arm•••"Q" input constraint was used for the written object, instead of "=Q" output constraint. this should not cause problems because "memory" is on the clobber list, but "=Q" better documents the intent and more consistent with the actual asm code. this changes the generated code, because different registers are used, but other than the register names nothing should change. Szabolcs Nagy2016-01-312-3/+3
* ldso: fix GDB dynamic linker info on MIPS•••GDB is looking for a pointer to the ldso debug info in the data of the ..rld_map section. Signed-off-by: Felix Fietkau <nbd@openwrt.org> Felix Fietkau2016-01-301-1/+1
* deduplicate the bulk of the arch bits headers•••all bits headers that were identical for a number of 'clean' archs are moved to the new arch/generic tree. in addition, a few headers that differed only cosmetically from the new generic version are removed. additional deduplication may be possible in mman.h and in several headers (limits.h, posix.h, stdint.h) that mostly depend on whether the arch is 32- or 64-bit, but they are left alone for now because greater gains are likely possible with more invasive changes to header logic, which is beyond the scope of this commit. Rich Felker2016-01-2792-3194/+0
* mips: add vdso support•••vdso support is available on mips starting with kernel 4.4, see kernel commit a7f4df4e21 "MIPS: VDSO: Add implementations of gettimeofday() and clock_gettime()" for details. In Linux kernel 4.4.0 the mips code returns -ENOSYS in case it can not handle the vdso call and assumes the libc will call the original syscall in this case. Handle this case in musl. Currently Linux kernel 4.4.0 handles the following types: CLOCK_REALTIME_COARSE, CLOCK_MONOTONIC_COARSE, CLOCK_REALTIME and CLOCK_MONOTONIC. Hauke Mehrtens2016-01-271-0/+4
* fix siginfo_t for mips•••si_errno and si_code are swapped in mips siginfo_t compared to other archs and some si_code values are different. This fix is required for POSIX timers to work. based on patch by Dmitry Ivanov. Szabolcs Nagy2016-01-261-0/+9
* add MCL_ONFAULT and MLOCK_ONFAULT mlockall and mlock2 flags•••they lock faulted pages into memory (useful when a small part of a large mapped file needs efficient access), new in linux v4.4, commit b0f205c2a3082dd9081f9a94e50658c5fa906ff1 MLOCK_* is not in the POSIX reserved namespace for sys/mman.h Szabolcs Nagy2016-01-2610-0/+10