diff options
Diffstat (limited to 'sysdeps/mach')
26 files changed, 503 insertions, 120 deletions
diff --git a/sysdeps/mach/clock_gettime.c b/sysdeps/mach/clock_gettime.c index 381ccb8..8d0143c 100644 --- a/sysdeps/mach/clock_gettime.c +++ b/sysdeps/mach/clock_gettime.c @@ -57,6 +57,26 @@ __clock_gettime (clockid_t clock_id, struct timespec *ts) case CLOCK_REALTIME: { +#ifdef HAVE_HOST_GET_TIME64 + time_value64_t tv_64; + err = __host_get_time64 (__mach_host_self (), &tv_64); + + /* If err is MIG_BAD_ID, it means an old gnumach which does not + support __host_get_time64 is running against the new gnumach + headers which has the signature of __host_get_time64. In that + case, we fall back to __host_get_time. */ + if (err != MIG_BAD_ID) + { + if (err) + { + __set_errno (err); + return -1; + } + + TIME_VALUE64_TO_TIMESPEC (&tv_64, ts); + return 0; + } +#endif /* __host_get_time can only fail if passed an invalid host_t. __mach_host_self could theoretically fail (producing an invalid host_t) due to resource exhaustion, but we assume diff --git a/sysdeps/mach/configure b/sysdeps/mach/configure index 8aa6bbb..311b2dd 100644 --- a/sysdeps/mach/configure +++ b/sysdeps/mach/configure @@ -491,6 +491,36 @@ if test $libc_cv_mach_rpc_host_get_uptime64 = yes; then fi +{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for host_get_time64 in mach_host.defs" >&5 +printf %s "checking for host_get_time64 in mach_host.defs... " >&6; } +if test ${libc_cv_mach_rpc_host_get_time64+y} +then : + printf %s "(cached) " >&6 +else case e in #( + e) cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ +#include <mach/mach_host.defs> + +_ACEOF +if (eval "$ac_cpp conftest.$ac_ext") 2>&5 | + $EGREP_TRADITIONAL "host_get_time64" >/dev/null 2>&1 +then : + libc_cv_mach_rpc_host_get_time64=yes +else case e in #( + e) libc_cv_mach_rpc_host_get_time64=no ;; +esac +fi +rm -rf conftest* + ;; +esac +fi +{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $libc_cv_mach_rpc_host_get_time64" >&5 +printf "%s\n" "$libc_cv_mach_rpc_host_get_time64" >&6; } +if test $libc_cv_mach_rpc_host_get_time64 = yes; then + printf "%s\n" "#define HAVE_HOST_GET_TIME64 1" >>confdefs.h + +fi + { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for thread_set_name in gnumach.defs" >&5 printf %s "checking for thread_set_name in gnumach.defs... " >&6; } if test ${libc_cv_mach_rpc_thread_set_name+y} diff --git a/sysdeps/mach/configure.ac b/sysdeps/mach/configure.ac index 08e5fde..3a6f244 100644 --- a/sysdeps/mach/configure.ac +++ b/sysdeps/mach/configure.ac @@ -94,6 +94,8 @@ mach_RPC_CHECK(mach_host.defs, host_page_size, HAVE_HOST_PAGE_SIZE) mach_RPC_CHECK(mach_host.defs, host_get_uptime64, HAVE_HOST_GET_UPTIME64) +mach_RPC_CHECK(mach_host.defs, host_get_time64, + HAVE_HOST_GET_TIME64) mach_RPC_CHECK(gnumach.defs, thread_set_name, HAVE_MACH_THREAD_SET_NAME) mach_RPC_CHECK(gnumach.defs, thread_get_name, diff --git a/sysdeps/mach/hurd/Makefile b/sysdeps/mach/hurd/Makefile index 4b69b40..32bba61 100644 --- a/sysdeps/mach/hurd/Makefile +++ b/sysdeps/mach/hurd/Makefile @@ -311,9 +311,6 @@ endif ifeq ($(subdir),htl) tests-unsupported += tst-basic7 endif -ifeq ($(subdir),io) -tests-unsupported += test-lfs -endif ifeq ($(subdir),libio) tests-unsupported += tst-asprintf-null endif @@ -323,6 +320,7 @@ tests-unsupported += tst-malloc-thread-fail-malloc-check tests-unsupported += tst-malloc-thread-fail-mcheck tests-unsupported += tst-malloc-thread-fail-malloc-hugetlb1 tests-unsupported += tst-malloc-thread-fail-malloc-hugetlb2 +tests-unsupported += tst-malloc-thread-fail-malloc-largetcache tests-unsupported += tst-dynarray-fail endif ifeq ($(subdir),misc) @@ -337,6 +335,10 @@ tests-unsupported += tst-vfprintf-width-prec-alloc endif ifeq ($(subdir),stdlib) tests-unsupported += test-bz22786 tst-strtod-overflow +# pthread_cleanup_combined_push/pthread_cleanup_combined_pop requires cleanup +# support (BZ 32058). +test-xfail-tst-qsort7-mem = yes +test-xfail-tst-qsortx7-mem = yes endif ifeq ($(subdir),timezone) tests-unsupported += tst-tzset diff --git a/sysdeps/mach/hurd/bits/ioctls.h b/sysdeps/mach/hurd/bits/ioctls.h index f01316d..faf1373 100644 --- a/sysdeps/mach/hurd/bits/ioctls.h +++ b/sysdeps/mach/hurd/bits/ioctls.h @@ -324,15 +324,8 @@ enum __ioctl_datum { IOC_8, IOC_16, IOC_32, IOC_64 }; From 4.4 <sys/ioctl_compat.h>. */ #ifdef __USE_MISC -#ifdef USE_OLD_TTY -# undef TIOCGETD -# define TIOCGETD _IOR('t', 0, int) /* get line discipline */ -# undef TIOCSETD -# define TIOCSETD _IOW('t', 1, int) /* set line discipline */ -#else -# define OTIOCGETD _IOR('t', 0, int) /* get line discipline */ -# define OTIOCSETD _IOW('t', 1, int) /* set line discipline */ -#endif +#define OTIOCGETD _IOR('t', 0, int) /* get line discipline */ +#define OTIOCSETD _IOW('t', 1, int) /* set line discipline */ #define TIOCHPCL _IO('t', 2) /* hang up on last close */ #define TIOCGETP _IOR('t', 8,struct sgttyb)/* get parameters -- gtty */ #define TIOCSETP _IOW('t', 9,struct sgttyb)/* set parameters -- stty */ @@ -411,26 +404,6 @@ enum __ioctl_datum { IOC_8, IOC_16, IOC_32, IOC_64 }; #define OTTYDISC 0 #define NETLDISC 1 #define NTTYDISC 2 - -/* From 4.4 <sys/ttydev.h>. */ -#ifdef USE_OLD_TTY -# define B0 0 -# define B50 1 -# define B75 2 -# define B110 3 -# define B134 4 -# define B150 5 -# define B200 6 -# define B300 7 -# define B600 8 -# define B1200 9 -# define B1800 10 -# define B2400 11 -# define B4800 12 -# define B9600 13 -# define EXTA 14 -# define EXTB 15 -#endif /* USE_OLD_TTY */ #endif #endif /* bits/ioctls.h */ diff --git a/sysdeps/mach/hurd/dl-execstack.c b/sysdeps/mach/hurd/dl-execstack.c index 0617d3a..dc4719b 100644 --- a/sysdeps/mach/hurd/dl-execstack.c +++ b/sysdeps/mach/hurd/dl-execstack.c @@ -26,12 +26,11 @@ extern struct hurd_startup_data *_dl_hurd_data attribute_hidden; so as to mprotect it. */ int -_dl_make_stack_executable (void **stack_endp) +_dl_make_stack_executable (const void *stack_endp) { /* Challenge the caller. */ - if (__builtin_expect (*stack_endp != __libc_stack_end, 0)) + if (__glibc_unlikely (stack_endp != __libc_stack_end)) return EPERM; - *stack_endp = NULL; #if IS_IN (rtld) if (__mprotect ((void *)_dl_hurd_data->stack_base, _dl_hurd_data->stack_size, diff --git a/sysdeps/mach/hurd/dup3.c b/sysdeps/mach/hurd/dup3.c index 22af45b..49545ae 100644 --- a/sysdeps/mach/hurd/dup3.c +++ b/sysdeps/mach/hurd/dup3.c @@ -69,6 +69,7 @@ __dup3 (int fd, int fd2, int flags) { /* Get a hold of the destination descriptor. */ struct hurd_fd *d2; + error_t err; __mutex_lock (&_hurd_dtable_lock); @@ -107,22 +108,51 @@ __dup3 (int fd, int fd2, int flags) } else { - /* Give the ports each a user ref for the new descriptor. */ - __mach_port_mod_refs (__mach_task_self (), port, - MACH_PORT_RIGHT_SEND, 1); - if (ctty != MACH_PORT_NULL) - __mach_port_mod_refs (__mach_task_self (), ctty, - MACH_PORT_RIGHT_SEND, 1); - - /* Install the ports and flags in the new descriptor slot. */ - __spin_lock (&d2->port.lock); - if (flags & O_CLOEXEC) - d2->flags = d_flags | FD_CLOEXEC; - else - /* dup clears FD_CLOEXEC. */ - d2->flags = d_flags & ~FD_CLOEXEC; - _hurd_port_set (&d2->ctty, ctty); - _hurd_port_locked_set (&d2->port, port); /* Unlocks D2. */ + /* Give the io server port a user ref for the new descriptor. */ + err = __mach_port_mod_refs (__mach_task_self (), port, + MACH_PORT_RIGHT_SEND, 1); + + if (err == KERN_UREFS_OVERFLOW) + fd2 = __hurd_fail (EMFILE); + else if (err) + fd2 = __hurd_fail (EINVAL); + else if (ctty != MACH_PORT_NULL) + { + /* We have confirmed the io server port has got a user ref + count, now give ctty port a user ref for the new + descriptor. */ + err = __mach_port_mod_refs (__mach_task_self (), ctty, + MACH_PORT_RIGHT_SEND, 1); + + if (err) + { + /* In this case the io server port has got a ref count + but the ctty port failed to get one, so we need to + clean the ref count we just assigned. */ + __mach_port_mod_refs (__mach_task_self (), port, + MACH_PORT_RIGHT_SEND, -1); + + if (err == KERN_UREFS_OVERFLOW) + fd2 = __hurd_fail (EMFILE); + else + fd2 = __hurd_fail (EINVAL); + } + } + + if (!err) + { + /* The ref counts of the ports are incremented + successfully. */ + /* Install the ports and flags in the new descriptor slot. */ + __spin_lock (&d2->port.lock); + if (flags & O_CLOEXEC) + d2->flags = d_flags | FD_CLOEXEC; + else + /* dup clears FD_CLOEXEC. */ + d2->flags = d_flags & ~FD_CLOEXEC; + _hurd_port_set (&d2->ctty, ctty); + _hurd_port_locked_set (&d2->port, port); /* Unlocks D2. */ + } } } diff --git a/sysdeps/mach/hurd/fcntl.c b/sysdeps/mach/hurd/fcntl.c index a65c190..de576af 100644 --- a/sysdeps/mach/hurd/fcntl.c +++ b/sysdeps/mach/hurd/fcntl.c @@ -83,18 +83,47 @@ __libc_fcntl (int fd, int cmd, ...) result = -1; else { - /* Give the ports each a user ref for the new descriptor. */ - __mach_port_mod_refs (__mach_task_self (), port, - MACH_PORT_RIGHT_SEND, 1); - if (ctty != MACH_PORT_NULL) - __mach_port_mod_refs (__mach_task_self (), ctty, - MACH_PORT_RIGHT_SEND, 1); - - /* Install the ports and flags in the new descriptor. */ - if (ctty != MACH_PORT_NULL) - _hurd_port_set (&new->ctty, ctty); - new->flags = flags; - _hurd_port_locked_set (&new->port, port); /* Unlocks NEW. */ + /* Give the io server port a user ref for the new descriptor. */ + err = __mach_port_mod_refs (__mach_task_self (), port, + MACH_PORT_RIGHT_SEND, 1); + + if (err == KERN_UREFS_OVERFLOW) + result = __hurd_fail (EMFILE); + else if (err) + result = __hurd_fail (EINVAL); + else if (ctty != MACH_PORT_NULL) + { + /* We have confirmed the io server port has got a user ref + count, now give ctty port a user ref for the new + descriptor. */ + err = __mach_port_mod_refs (__mach_task_self (), ctty, + MACH_PORT_RIGHT_SEND, 1); + + if (err) + { + /* In this case the io server port has got a ref count + but the ctty port fails to get one, so we need to clean + the ref count we just assigned. */ + __mach_port_mod_refs (__mach_task_self (), port, + MACH_PORT_RIGHT_SEND, -1); + + if (err == KERN_UREFS_OVERFLOW) + result = __hurd_fail (EMFILE); + else + result = __hurd_fail (EINVAL); + } + } + + if (!err) + { + /* The ref counts of the ports are incremented successfully. */ + /* Install the ports and flags in the new descriptor. */ + if (ctty != MACH_PORT_NULL) + _hurd_port_set (&new->ctty, ctty); + new->flags = flags; + /* Unlocks NEW. */ + _hurd_port_locked_set (&new->port, port); + } } HURD_CRITICAL_END; diff --git a/sysdeps/mach/hurd/futimens.c b/sysdeps/mach/hurd/futimens.c index 30ef0a6..1212529 100644 --- a/sysdeps/mach/hurd/futimens.c +++ b/sysdeps/mach/hurd/futimens.c @@ -32,7 +32,9 @@ __futimens (int fd, const struct timespec tsp[2]) struct timespec atime, mtime; error_t err; - utime_ts_from_tspec (tsp, &atime, &mtime); + err = utime_ts_from_tspec (tsp, &atime, &mtime); + if (err) + return err; err = HURD_DPORT_USE (fd, __file_utimens (port, atime, mtime)); @@ -40,7 +42,9 @@ __futimens (int fd, const struct timespec tsp[2]) { time_value_t atim, mtim; - utime_tvalue_from_tspec (tsp, &atim, &mtim); + err = utime_tvalue_from_tspec (tsp, &atim, &mtim); + if (err) + return err; err = HURD_DPORT_USE (fd, __file_utimes (port, atim, mtim)); } diff --git a/sysdeps/mach/hurd/futimes.c b/sysdeps/mach/hurd/futimes.c index 20f47f3..97385d7 100644 --- a/sysdeps/mach/hurd/futimes.c +++ b/sysdeps/mach/hurd/futimes.c @@ -32,7 +32,9 @@ __futimes (int fd, const struct timeval tvp[2]) struct timespec atime, mtime; error_t err; - utime_ts_from_tval (tvp, &atime, &mtime); + err = utime_ts_from_tval (tvp, &atime, &mtime); + if (err) + return err; err = HURD_DPORT_USE (fd, __file_utimens (port, atime, mtime)); @@ -40,7 +42,9 @@ __futimes (int fd, const struct timeval tvp[2]) { time_value_t atim, mtim; - utime_tvalue_from_tval (tvp, &atim, &mtim); + err = utime_tvalue_from_tval (tvp, &atim, &mtim); + if (err) + return err; err = HURD_DPORT_USE (fd, __file_utimes (port, atim, mtim)); } diff --git a/sysdeps/mach/hurd/getrandom-internal.h b/sysdeps/mach/hurd/getrandom-internal.h new file mode 100644 index 0000000..8bd718b --- /dev/null +++ b/sysdeps/mach/hurd/getrandom-internal.h @@ -0,0 +1,30 @@ +/* Internal definitions for Hurd getrandom implementation. + Copyright (C) 2024-2025 Free Software Foundation, Inc. + This file is part of the GNU C Library. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, see + <https://www.gnu.org/licenses/>. */ + +#ifndef _GETRANDOM_INTERNAL_H +#define _GETRANDOM_INTERNAL_H + +extern void __mach_init (void); + +static inline void __getrandom_early_init (_Bool initial) +{ + /* getrandom needs RPCs for time etc. */ + __mach_init (); +} + +#endif diff --git a/sysdeps/mach/hurd/i386/bits/sigcontext.h b/sysdeps/mach/hurd/i386/bits/sigcontext.h index 6e5e220..c44e4de 100644 --- a/sysdeps/mach/hurd/i386/bits/sigcontext.h +++ b/sysdeps/mach/hurd/i386/bits/sigcontext.h @@ -88,6 +88,8 @@ struct sigcontext struct i386_fp_save sc_fpsave; struct i386_fp_regs sc_fpregs; int sc_fpexcsr; /* FPSR including exception bits. */ + + struct i386_xfloat_state *xstate; }; /* Traditional BSD names for some members. */ diff --git a/sysdeps/mach/hurd/i386/libc.abilist b/sysdeps/mach/hurd/i386/libc.abilist index facb01b..aac3cb3 100644 --- a/sysdeps/mach/hurd/i386/libc.abilist +++ b/sysdeps/mach/hurd/i386/libc.abilist @@ -28,6 +28,8 @@ GLIBC_2.11 mkostemps F GLIBC_2.11 mkostemps64 F GLIBC_2.11 mkstemps F GLIBC_2.11 mkstemps64 F +GLIBC_2.12 __pthread_get_cleanup_stack F +GLIBC_2.12 __pthread_key_create F GLIBC_2.12 __pthread_self F GLIBC_2.12 pthread_attr_destroy F GLIBC_2.12 pthread_attr_getdetachstate F @@ -70,6 +72,9 @@ GLIBC_2.12 pthread_condattr_setclock F GLIBC_2.12 pthread_condattr_setpshared F GLIBC_2.12 pthread_equal F GLIBC_2.12 pthread_getschedparam F +GLIBC_2.12 pthread_getspecific F +GLIBC_2.12 pthread_key_create F +GLIBC_2.12 pthread_key_delete F GLIBC_2.12 pthread_mutex_destroy F GLIBC_2.12 pthread_mutex_getprioceiling F GLIBC_2.12 pthread_mutex_init F @@ -106,6 +111,7 @@ GLIBC_2.12 pthread_self F GLIBC_2.12 pthread_setcancelstate F GLIBC_2.12 pthread_setcanceltype F GLIBC_2.12 pthread_setschedparam F +GLIBC_2.12 pthread_setspecific F GLIBC_2.12 pthread_sigmask F GLIBC_2.13 __fentry__ F GLIBC_2.14 syncfs F @@ -2585,6 +2591,12 @@ GLIBC_2.41 pthread_mutexattr_setrobust_np F GLIBC_2.41 pthread_mutexattr_settype F GLIBC_2.41 pthread_sigmask F GLIBC_2.42 __inet_ntop_chk F +GLIBC_2.42 __inet_pton_chk F +GLIBC_2.42 cfgetibaud F +GLIBC_2.42 cfgetobaud F +GLIBC_2.42 cfsetbaud F +GLIBC_2.42 cfsetibaud F +GLIBC_2.42 cfsetobaud F GLIBC_2.42 pthread_barrier_destroy F GLIBC_2.42 pthread_barrier_init F GLIBC_2.42 pthread_barrier_wait F @@ -2592,6 +2604,9 @@ GLIBC_2.42 pthread_barrierattr_destroy F GLIBC_2.42 pthread_barrierattr_getpshared F GLIBC_2.42 pthread_barrierattr_init F GLIBC_2.42 pthread_barrierattr_setpshared F +GLIBC_2.42 pthread_getspecific F +GLIBC_2.42 pthread_key_create F +GLIBC_2.42 pthread_key_delete F GLIBC_2.42 pthread_mutex_consistent F GLIBC_2.42 pthread_mutex_consistent_np F GLIBC_2.42 pthread_mutex_getprioceiling F @@ -2613,6 +2628,11 @@ GLIBC_2.42 pthread_rwlockattr_destroy F GLIBC_2.42 pthread_rwlockattr_getpshared F GLIBC_2.42 pthread_rwlockattr_init F GLIBC_2.42 pthread_rwlockattr_setpshared F +GLIBC_2.42 pthread_setspecific F +GLIBC_2.42 uabs F +GLIBC_2.42 uimaxabs F +GLIBC_2.42 ulabs F +GLIBC_2.42 ullabs F GLIBC_2.5 __readlinkat_chk F GLIBC_2.5 inet6_opt_append F GLIBC_2.5 inet6_opt_find F diff --git a/sysdeps/mach/hurd/i386/libm.abilist b/sysdeps/mach/hurd/i386/libm.abilist index 436ce76..47d215f 100644 --- a/sysdeps/mach/hurd/i386/libm.abilist +++ b/sysdeps/mach/hurd/i386/libm.abilist @@ -1277,6 +1277,22 @@ GLIBC_2.41 tanpif32x F GLIBC_2.41 tanpif64 F GLIBC_2.41 tanpif64x F GLIBC_2.41 tanpil F +GLIBC_2.42 compoundn F +GLIBC_2.42 compoundnf F +GLIBC_2.42 compoundnf128 F +GLIBC_2.42 compoundnf32 F +GLIBC_2.42 compoundnf32x F +GLIBC_2.42 compoundnf64 F +GLIBC_2.42 compoundnf64x F +GLIBC_2.42 compoundnl F +GLIBC_2.42 pown F +GLIBC_2.42 pownf F +GLIBC_2.42 pownf128 F +GLIBC_2.42 pownf32 F +GLIBC_2.42 pownf32x F +GLIBC_2.42 pownf64 F +GLIBC_2.42 pownf64x F +GLIBC_2.42 pownl F GLIBC_2.42 powr F GLIBC_2.42 powrf F GLIBC_2.42 powrf128 F @@ -1285,6 +1301,14 @@ GLIBC_2.42 powrf32x F GLIBC_2.42 powrf64 F GLIBC_2.42 powrf64x F GLIBC_2.42 powrl F +GLIBC_2.42 rootn F +GLIBC_2.42 rootnf F +GLIBC_2.42 rootnf128 F +GLIBC_2.42 rootnf32 F +GLIBC_2.42 rootnf32x F +GLIBC_2.42 rootnf64 F +GLIBC_2.42 rootnf64x F +GLIBC_2.42 rootnl F GLIBC_2.42 rsqrt F GLIBC_2.42 rsqrtf F GLIBC_2.42 rsqrtf128 F diff --git a/sysdeps/mach/hurd/i386/libpthread.abilist b/sysdeps/mach/hurd/i386/libpthread.abilist index b067d37..9d2c4cd 100644 --- a/sysdeps/mach/hurd/i386/libpthread.abilist +++ b/sysdeps/mach/hurd/i386/libpthread.abilist @@ -1,7 +1,5 @@ GLIBC_2.12 __mutex_lock_solid F GLIBC_2.12 __mutex_unlock_solid F -GLIBC_2.12 __pthread_get_cleanup_stack F -GLIBC_2.12 __pthread_key_create F GLIBC_2.12 __pthread_kill F GLIBC_2.12 __pthread_mutex_transfer_np F GLIBC_2.12 __pthread_spin_destroy F @@ -29,15 +27,11 @@ GLIBC_2.12 pthread_exit F GLIBC_2.12 pthread_getattr_np F GLIBC_2.12 pthread_getconcurrency F GLIBC_2.12 pthread_getcpuclockid F -GLIBC_2.12 pthread_getspecific F GLIBC_2.12 pthread_join F -GLIBC_2.12 pthread_key_create F -GLIBC_2.12 pthread_key_delete F GLIBC_2.12 pthread_kill F GLIBC_2.12 pthread_mutex_transfer_np F GLIBC_2.12 pthread_setconcurrency F GLIBC_2.12 pthread_setschedprio F -GLIBC_2.12 pthread_setspecific F GLIBC_2.12 pthread_spin_destroy F GLIBC_2.12 pthread_spin_init F GLIBC_2.12 pthread_spin_lock F diff --git a/sysdeps/mach/hurd/i386/sigreturn.c b/sysdeps/mach/hurd/i386/sigreturn.c index ce8df8d..dc57d61 100644 --- a/sysdeps/mach/hurd/i386/sigreturn.c +++ b/sysdeps/mach/hurd/i386/sigreturn.c @@ -21,6 +21,8 @@ #include <stdlib.h> #include <string.h> +#include <cpuid.h> + /* This is run on the thread stack after restoring it, to be able to unlock SS off sigstack. */ static void @@ -123,10 +125,35 @@ __sigreturn (struct sigcontext *scp) if (scp->sc_onstack) ss->sigaltstack.ss_flags &= ~SS_ONSTACK; - if (scp->sc_fpused) - /* Restore the FPU state. Mach conveniently stores the state - in the format the i387 `frstor' instruction uses to restore it. */ - asm volatile ("frstor %0" : : "m" (scp->sc_fpsave)); +#ifdef i386_XFLOAT_STATE + if (scp->xstate) + { + if (scp->xstate->initialized) + { + unsigned eax, ebx, ecx, edx; + __cpuid_count(0xd, 0, eax, ebx, ecx, edx); + switch (scp->xstate->fp_save_kind) + { + case 0: // FNSAVE + asm volatile("frstor %0" : : "m" (scp->xstate->hw_state)); + break; + case 1: // FXSAVE + asm volatile("fxrstor %0" : : "m" (scp->xstate->hw_state), \ + "a" (eax), "d" (edx)); + break; + default: // XSAVE, XSAVEOPT, XSAVEC, XSAVES + asm volatile("xrstor %0" : : "m" (scp->xstate->hw_state), \ + "a" (eax), "d" (edx)); + break; + } + } + } + else +#endif + if (scp->sc_fpused) + /* Restore the FPU state. Mach conveniently stores the state + in the format the i387 `frstor' instruction uses to restore it. */ + asm volatile ("frstor %0" : : "m" (scp->sc_fpsave)); { /* There are convenient instructions to pop state off the stack, so we diff --git a/sysdeps/mach/hurd/renameat2.c b/sysdeps/mach/hurd/renameat2.c index 59a4e31..5b09fed 100644 --- a/sysdeps/mach/hurd/renameat2.c +++ b/sysdeps/mach/hurd/renameat2.c @@ -37,15 +37,28 @@ __renameat2 (int oldfd, const char *old, int newfd, const char *new, if (flags & RENAME_NOREPLACE) excl = 1; - olddir = __directory_name_split_at (oldfd, old, (char **) &oldname); + olddir = __file_name_split_at (oldfd, old, (char **) &oldname); if (olddir == MACH_PORT_NULL) return -1; - newdir = __directory_name_split_at (newfd, new, (char **) &newname); + if (!*oldname) + { + /* Trailing slash. */ + __mach_port_deallocate (__mach_task_self (), olddir); + return __hurd_fail (ENOTDIR); + } + newdir = __file_name_split_at (newfd, new, (char **) &newname); if (newdir == MACH_PORT_NULL) { - __mach_port_deallocate (__mach_task_self (), olddir); + __mach_port_deallocate (__mach_task_self (), olddir); return -1; } + if (!*newname) + { + /* Trailing slash. */ + __mach_port_deallocate (__mach_task_self (), olddir); + __mach_port_deallocate (__mach_task_self (), newdir); + return __hurd_fail (ENOTDIR); + } err = __dir_rename (olddir, oldname, newdir, newname, excl); __mach_port_deallocate (__mach_task_self (), olddir); diff --git a/sysdeps/mach/hurd/symlinkat.c b/sysdeps/mach/hurd/symlinkat.c index e7dfb67..cb6250e 100644 --- a/sysdeps/mach/hurd/symlinkat.c +++ b/sysdeps/mach/hurd/symlinkat.c @@ -47,7 +47,7 @@ __symlinkat (const char *from, int fd, const char *to) if (! *name) /* Can't link to the existing directory itself. */ - err = ENOTDIR; + err = EEXIST; else /* Create a new, unlinked node in the target directory. */ err = __dir_mkfile (dir, O_WRITE, 0777 & ~_hurd_umask, &node); diff --git a/sysdeps/mach/hurd/utime-helper.c b/sysdeps/mach/hurd/utime-helper.c index d88bccd..6afa871 100644 --- a/sysdeps/mach/hurd/utime-helper.c +++ b/sysdeps/mach/hurd/utime-helper.c @@ -21,8 +21,14 @@ #include <stddef.h> #include <sys/time.h> +static inline bool +check_tval (const struct timeval *tvp) +{ + return tvp->tv_usec >= 0 && tvp->tv_usec < USEC_PER_SEC; +} + /* Initializes atime/mtime timespec structures from an array of timeval. */ -static inline void +static inline error_t utime_ts_from_tval (const struct timeval tvp[2], struct timespec *atime, struct timespec *mtime) { @@ -37,13 +43,19 @@ utime_ts_from_tval (const struct timeval tvp[2], } else { + if (!check_tval (&tvp[0])) + return EINVAL; + if (!check_tval (&tvp[1])) + return EINVAL; + TIMEVAL_TO_TIMESPEC (&tvp[0], atime); TIMEVAL_TO_TIMESPEC (&tvp[1], mtime); } + return 0; } /* Initializes atime/mtime time_value_t structures from an array of timeval. */ -static inline void +static inline error_t utime_tvalue_from_tval (const struct timeval tvp[2], time_value_t *atime, time_value_t *mtime) { @@ -53,11 +65,17 @@ utime_tvalue_from_tval (const struct timeval tvp[2], atime->microseconds = mtime->microseconds = -1; else { + if (!check_tval (&tvp[0])) + return EINVAL; + if (!check_tval (&tvp[1])) + return EINVAL; + atime->seconds = tvp[0].tv_sec; atime->microseconds = tvp[0].tv_usec; mtime->seconds = tvp[1].tv_sec; mtime->microseconds = tvp[1].tv_usec; } + return 0; } /* Changes the access time of the file behind PORT using a timeval array. */ @@ -67,7 +85,9 @@ hurd_futimes (const file_t port, const struct timeval tvp[2]) error_t err; struct timespec atime, mtime; - utime_ts_from_tval (tvp, &atime, &mtime); + err = utime_ts_from_tval (tvp, &atime, &mtime); + if (err) + return err; err = __file_utimens (port, atime, mtime); @@ -75,7 +95,9 @@ hurd_futimes (const file_t port, const struct timeval tvp[2]) { time_value_t atim, mtim; - utime_tvalue_from_tval (tvp, &atim, &mtim); + err = utime_tvalue_from_tval (tvp, &atim, &mtim); + if (err) + return err; err = __file_utimes (port, atim, mtim); } @@ -83,8 +105,16 @@ hurd_futimes (const file_t port, const struct timeval tvp[2]) return err; } +static inline bool +check_tspec (const struct timespec *tsp) +{ + return tsp->tv_nsec == UTIME_NOW + || tsp->tv_nsec == UTIME_OMIT + || tsp->tv_nsec >= 0 && tsp->tv_nsec < NSEC_PER_SEC; +} + /* Initializes atime/mtime timespec structures from an array of timespec. */ -static inline void +static inline error_t utime_ts_from_tspec (const struct timespec tsp[2], struct timespec *atime, struct timespec *mtime) { @@ -99,13 +129,19 @@ utime_ts_from_tspec (const struct timespec tsp[2], } else { + if (!check_tspec (&tsp[0])) + return EINVAL; + if (!check_tspec (&tsp[1])) + return EINVAL; + *atime = tsp[0]; *mtime = tsp[1]; } + return 0; } /* Initializes atime/mtime time_value_t structures from an array of timespec. */ -static inline void +static inline error_t utime_tvalue_from_tspec (const struct timespec tsp[2], time_value_t *atime, time_value_t *mtime) { @@ -115,6 +151,11 @@ utime_tvalue_from_tspec (const struct timespec tsp[2], atime->microseconds = mtime->microseconds = -1; else { + if (!check_tspec (&tsp[0])) + return EINVAL; + if (!check_tspec (&tsp[1])) + return EINVAL; + if (tsp[0].tv_nsec == UTIME_NOW) atime->microseconds = -1; else if (tsp[0].tv_nsec == UTIME_OMIT) @@ -128,6 +169,7 @@ utime_tvalue_from_tspec (const struct timespec tsp[2], else TIMESPEC_TO_TIME_VALUE (mtime, &(tsp[1])); } + return 0; } /* Changes the access time of the file behind PORT using a timespec array. */ @@ -137,7 +179,9 @@ hurd_futimens (const file_t port, const struct timespec tsp[2]) error_t err; struct timespec atime, mtime; - utime_ts_from_tspec (tsp, &atime, &mtime); + err = utime_ts_from_tspec (tsp, &atime, &mtime); + if (err) + return err; err = __file_utimens (port, atime, mtime); @@ -145,7 +189,9 @@ hurd_futimens (const file_t port, const struct timespec tsp[2]) { time_value_t atim, mtim; - utime_tvalue_from_tspec (tsp, &atim, &mtim); + err = utime_tvalue_from_tspec (tsp, &atim, &mtim); + if (err) + return err; err = __file_utimes (port, atim, mtim); } diff --git a/sysdeps/mach/hurd/x86/trampoline.c b/sysdeps/mach/hurd/x86/trampoline.c index 8e2890f..6f23c56 100644 --- a/sysdeps/mach/hurd/x86/trampoline.c +++ b/sysdeps/mach/hurd/x86/trampoline.c @@ -26,7 +26,11 @@ #include "hurdfault.h" #include <intr-msg.h> #include <sys/ucontext.h> - +#ifdef __x86_64__ +#include <mach/x86_64/mach_i386.h> +#else +#include <mach/i386/mach_i386.h> +#endif /* Fill in a siginfo_t structure for SA_SIGINFO-enabled handlers. */ static void fill_siginfo (siginfo_t *si, int signo, @@ -106,6 +110,7 @@ _hurd_setup_sighandler (struct hurd_sigstate *ss, const struct sigaction *action void firewall (void); void *sigsp; struct sigcontext *scp; + vm_size_t xstate_size; struct { union @@ -145,6 +150,14 @@ _hurd_setup_sighandler (struct hurd_sigstate *ss, const struct sigaction *action struct hurd_userlink link; ucontext_t ucontext; siginfo_t siginfo; +#ifdef __x86_64__ + char _pad2[56]; +#else + char _pad2[20]; +#endif + char xstate[]; + /* Don't add anything after xstate, as it's dynamically + sized. */ } *stackframe; #ifdef __x86_64__ @@ -170,6 +183,17 @@ _hurd_setup_sighandler (struct hurd_sigstate *ss, const struct sigaction *action if (! machine_get_basic_state (ss->thread, state)) return NULL; + /* Initialize the size of the CPU extended state, to be saved during + * signal handling */ +#ifdef i386_XFLOAT_STATE + _Static_assert ((sizeof(*stackframe) + sizeof(struct i386_xfloat_state)) % 64 == 0, + "stackframe size must be multiple of 64-byte minus " + "sizeof(struct i386_xfloat_state), please adjust _pad2"); + + if (__i386_get_xstate_size(__mach_host_self(), &xstate_size)) +#endif + xstate_size = 0; + /* Save the original SP in the gratuitous `esp' slot. We may need to reset the SP (the `uesp' slot) to avoid clobbering an interrupted RPC frame. */ @@ -196,14 +220,21 @@ _hurd_setup_sighandler (struct hurd_sigstate *ss, const struct sigaction *action #endif } - /* Push the arguments to call `trampoline' on the stack. */ - sigsp -= sizeof (*stackframe); -#ifdef __x86_64__ - /* Align SP at 16 bytes. Coupled with the fact that sigreturn_addr is - 16-byte aligned within the stackframe struct, this ensures that it ends - up on a 16-byte aligned address, as required by the ABI. */ - sigsp = (void *) ((uintptr_t) sigsp & ~15UL); -#endif + /* Push the arguments to call `trampoline' on the stack. + * The extended state might have a variable size depending on the platform, + * so we dynamically allocate it on the stack frame.*/ + sigsp -= sizeof (*stackframe) + xstate_size; + + /* Align SP at 64 bytes. This is needed for two reasons: + * - sigreturn_addr is 16-byte aligned within the stackframe + * struct, and this ensures that it ends up on a 16-byte aligned + * address, as required by the ABI. + * - the XSAVE state needs to be aligned at 64 bytes (on both i386 and + * x86_64), so we align the stackframe also at 64 bytes and add the + * required padding at the end, see the _pad2 field. + */ + sigsp = (void *) ((uintptr_t) sigsp & ~63UL); + stackframe = sigsp; if (_hurdsig_catch_memory_fault (stackframe)) @@ -248,14 +279,40 @@ _hurd_setup_sighandler (struct hurd_sigstate *ss, const struct sigaction *action memcpy (&scp->sc_i386_thread_state, &state->basic, sizeof (state->basic)); - /* struct sigcontext is laid out so that starting at sc_fpkind mimics - a struct i386_float_state. */ - _Static_assert (offsetof (struct sigcontext, sc_i386_float_state) - % __alignof__ (struct i386_float_state) == 0, - "sc_i386_float_state layout mismatch"); - ok = machine_get_state (ss->thread, state, i386_FLOAT_STATE, - &state->fpu, &scp->sc_i386_float_state, - sizeof (state->fpu)); + scp->xstate = NULL; +#ifdef i386_XFLOAT_STATE + if (xstate_size > 0) + { + mach_msg_type_number_t got = (xstate_size / sizeof (int)); + + ok = (! __thread_get_state (ss->thread, i386_XFLOAT_STATE, + (thread_state_t) stackframe->xstate, &got) + && got == (xstate_size / sizeof (int))); + + if (ok && ((struct i386_xfloat_state*) stackframe->xstate)->fp_save_kind > 5) + /* We support up to XSAVES */ + ok = 0; + + if (ok) + { + scp->xstate = (struct i386_xfloat_state*) stackframe->xstate; + assert((uintptr_t)scp->xstate->hw_state % 64 == 0); + } + } + else +#endif + ok = 0; + if (!ok) + { + /* struct sigcontext is laid out so that starting at sc_fpkind mimics + a struct i386_float_state. */ + _Static_assert (offsetof (struct sigcontext, sc_i386_float_state) + % __alignof__ (struct i386_float_state) == 0, + "sc_i386_float_state layout mismatch"); + ok = machine_get_state (ss->thread, state, i386_FLOAT_STATE, + &state->fpu, &scp->sc_i386_float_state, + sizeof (state->fpu)); + } /* Set up the arguments for the signal handler. */ stackframe->signo = signo; @@ -404,7 +461,10 @@ _hurd_setup_sighandler (struct hurd_sigstate *ss, const struct sigaction *action - in gdb: gdb/i386-gnu-tdep.c gnu_sigtramp_code. */ #ifdef __x86_64__ -asm ("rpc_wait_trampoline:\n" +asm ("trampoline:\n" + "fnclex\n" /* Clear any pending exception. */ + "jmp _trampoline\n" + "rpc_wait_trampoline:\n" /* This is the entry point when we have an RPC reply message to receive before running the handler. The MACH_MSG_SEND bit has already been cleared in the OPTION argument in our %rsi. The interrupted user @@ -423,7 +483,7 @@ asm ("rpc_wait_trampoline:\n" /* Switch to the signal stack. */ "movq %rbx, %rsp\n" - "trampoline:\n" + "_trampoline:\n" /* Entry point for running the handler normally. The arguments to the handler function are on the top of the stack, same as in the i386 version: @@ -449,7 +509,10 @@ asm ("rpc_wait_trampoline:\n" "movq 16(%rsp), %rdi\n" "ret"); #else -asm ("rpc_wait_trampoline:\n"); +asm ("trampoline:\n" + "fnclex\n" /* Clear any pending exception. */ + "jmp _trampoline\n" + "rpc_wait_trampoline:\n"); /* This is the entry point when we have an RPC reply message to receive before running the handler. The MACH_MSG_SEND bit has already been cleared in the OPTION argument on our stack. The interrupted user @@ -469,7 +532,7 @@ asm (/* Retry the interrupted mach_msg system call. */ /* Switch to the signal stack. */ "movl %ebx, %esp\n"); - asm ("trampoline:\n"); +asm ("_trampoline:\n"); /* Entry point for running the handler normally. The arguments to the handler function are already on the top of the stack: diff --git a/sysdeps/mach/hurd/x86_64/bits/sigcontext.h b/sysdeps/mach/hurd/x86_64/bits/sigcontext.h index 7bac881..d83795f 100644 --- a/sysdeps/mach/hurd/x86_64/bits/sigcontext.h +++ b/sysdeps/mach/hurd/x86_64/bits/sigcontext.h @@ -96,6 +96,8 @@ struct sigcontext struct i386_fp_save sc_fpsave; struct i386_fp_regs sc_fpregs; int sc_fpexcsr; /* FPSR including exception bits. */ + + struct i386_xfloat_state *xstate; }; /* Traditional BSD names for some members. */ diff --git a/sysdeps/mach/hurd/x86_64/libc.abilist b/sysdeps/mach/hurd/x86_64/libc.abilist index 3c76f6a..8f9d6aa 100644 --- a/sysdeps/mach/hurd/x86_64/libc.abilist +++ b/sysdeps/mach/hurd/x86_64/libc.abilist @@ -392,6 +392,7 @@ GLIBC_2.38 __profile_frequency F GLIBC_2.38 __progname D 0x8 GLIBC_2.38 __progname_full D 0x8 GLIBC_2.38 __pthread_get_cleanup_stack F +GLIBC_2.38 __pthread_key_create F GLIBC_2.38 __pthread_self F GLIBC_2.38 __ptsname_r_chk F GLIBC_2.38 __pwrite64 F @@ -1554,6 +1555,9 @@ GLIBC_2.38 pthread_condattr_setpshared F GLIBC_2.38 pthread_equal F GLIBC_2.38 pthread_exit F GLIBC_2.38 pthread_getschedparam F +GLIBC_2.38 pthread_getspecific F +GLIBC_2.38 pthread_key_create F +GLIBC_2.38 pthread_key_delete F GLIBC_2.38 pthread_mutex_clocklock F GLIBC_2.38 pthread_mutex_consistent F GLIBC_2.38 pthread_mutex_consistent_np F @@ -1599,6 +1603,7 @@ GLIBC_2.38 pthread_self F GLIBC_2.38 pthread_setcancelstate F GLIBC_2.38 pthread_setcanceltype F GLIBC_2.38 pthread_setschedparam F +GLIBC_2.38 pthread_setspecific F GLIBC_2.38 pthread_sigmask F GLIBC_2.38 ptrace F GLIBC_2.38 ptsname F @@ -2268,6 +2273,12 @@ GLIBC_2.41 pthread_mutexattr_setrobust_np F GLIBC_2.41 pthread_mutexattr_settype F GLIBC_2.41 pthread_sigmask F GLIBC_2.42 __inet_ntop_chk F +GLIBC_2.42 __inet_pton_chk F +GLIBC_2.42 cfgetibaud F +GLIBC_2.42 cfgetobaud F +GLIBC_2.42 cfsetbaud F +GLIBC_2.42 cfsetibaud F +GLIBC_2.42 cfsetobaud F GLIBC_2.42 pthread_barrier_destroy F GLIBC_2.42 pthread_barrier_init F GLIBC_2.42 pthread_barrier_wait F @@ -2275,6 +2286,9 @@ GLIBC_2.42 pthread_barrierattr_destroy F GLIBC_2.42 pthread_barrierattr_getpshared F GLIBC_2.42 pthread_barrierattr_init F GLIBC_2.42 pthread_barrierattr_setpshared F +GLIBC_2.42 pthread_getspecific F +GLIBC_2.42 pthread_key_create F +GLIBC_2.42 pthread_key_delete F GLIBC_2.42 pthread_mutex_consistent F GLIBC_2.42 pthread_mutex_consistent_np F GLIBC_2.42 pthread_mutex_getprioceiling F @@ -2296,6 +2310,11 @@ GLIBC_2.42 pthread_rwlockattr_destroy F GLIBC_2.42 pthread_rwlockattr_getpshared F GLIBC_2.42 pthread_rwlockattr_init F GLIBC_2.42 pthread_rwlockattr_setpshared F +GLIBC_2.42 pthread_setspecific F +GLIBC_2.42 uabs F +GLIBC_2.42 uimaxabs F +GLIBC_2.42 ulabs F +GLIBC_2.42 ullabs F HURD_CTHREADS_0.3 __cthread_getspecific F HURD_CTHREADS_0.3 __cthread_keycreate F HURD_CTHREADS_0.3 __cthread_setspecific F diff --git a/sysdeps/mach/hurd/x86_64/libm.abilist b/sysdeps/mach/hurd/x86_64/libm.abilist index 14fe836..52c9d56 100644 --- a/sysdeps/mach/hurd/x86_64/libm.abilist +++ b/sysdeps/mach/hurd/x86_64/libm.abilist @@ -1134,6 +1134,22 @@ GLIBC_2.41 tanpif32x F GLIBC_2.41 tanpif64 F GLIBC_2.41 tanpif64x F GLIBC_2.41 tanpil F +GLIBC_2.42 compoundn F +GLIBC_2.42 compoundnf F +GLIBC_2.42 compoundnf128 F +GLIBC_2.42 compoundnf32 F +GLIBC_2.42 compoundnf32x F +GLIBC_2.42 compoundnf64 F +GLIBC_2.42 compoundnf64x F +GLIBC_2.42 compoundnl F +GLIBC_2.42 pown F +GLIBC_2.42 pownf F +GLIBC_2.42 pownf128 F +GLIBC_2.42 pownf32 F +GLIBC_2.42 pownf32x F +GLIBC_2.42 pownf64 F +GLIBC_2.42 pownf64x F +GLIBC_2.42 pownl F GLIBC_2.42 powr F GLIBC_2.42 powrf F GLIBC_2.42 powrf128 F @@ -1142,6 +1158,14 @@ GLIBC_2.42 powrf32x F GLIBC_2.42 powrf64 F GLIBC_2.42 powrf64x F GLIBC_2.42 powrl F +GLIBC_2.42 rootn F +GLIBC_2.42 rootnf F +GLIBC_2.42 rootnf128 F +GLIBC_2.42 rootnf32 F +GLIBC_2.42 rootnf32x F +GLIBC_2.42 rootnf64 F +GLIBC_2.42 rootnf64x F +GLIBC_2.42 rootnl F GLIBC_2.42 rsqrt F GLIBC_2.42 rsqrtf F GLIBC_2.42 rsqrtf128 F diff --git a/sysdeps/mach/hurd/x86_64/libpthread.abilist b/sysdeps/mach/hurd/x86_64/libpthread.abilist index 6b8acec..81d355a 100644 --- a/sysdeps/mach/hurd/x86_64/libpthread.abilist +++ b/sysdeps/mach/hurd/x86_64/libpthread.abilist @@ -5,8 +5,6 @@ GLIBC_2.38 __errno_location F GLIBC_2.38 __h_errno_location F GLIBC_2.38 __mutex_lock_solid F GLIBC_2.38 __mutex_unlock_solid F -GLIBC_2.38 __pthread_get_cleanup_stack F -GLIBC_2.38 __pthread_key_create F GLIBC_2.38 __pthread_kill F GLIBC_2.38 __pthread_mutex_transfer_np F GLIBC_2.38 __pthread_spin_destroy F @@ -47,17 +45,13 @@ GLIBC_2.38 pthread_exit F GLIBC_2.38 pthread_getattr_np F GLIBC_2.38 pthread_getconcurrency F GLIBC_2.38 pthread_getcpuclockid F -GLIBC_2.38 pthread_getspecific F GLIBC_2.38 pthread_hurd_cond_timedwait_np F GLIBC_2.38 pthread_hurd_cond_wait_np F GLIBC_2.38 pthread_join F -GLIBC_2.38 pthread_key_create F -GLIBC_2.38 pthread_key_delete F GLIBC_2.38 pthread_kill F GLIBC_2.38 pthread_mutex_transfer_np F GLIBC_2.38 pthread_setconcurrency F GLIBC_2.38 pthread_setschedprio F -GLIBC_2.38 pthread_setspecific F GLIBC_2.38 pthread_spin_destroy F GLIBC_2.38 pthread_spin_init F GLIBC_2.38 pthread_spin_lock F diff --git a/sysdeps/mach/hurd/x86_64/sigreturn.c b/sysdeps/mach/hurd/x86_64/sigreturn.c index 81a2d3b..773c00f 100644 --- a/sysdeps/mach/hurd/x86_64/sigreturn.c +++ b/sysdeps/mach/hurd/x86_64/sigreturn.c @@ -20,6 +20,8 @@ #include <hurd/msg.h> #include <stdlib.h> +#include <cpuid.h> + /* This is run on the thread stack after restoring it, to be able to unlock SS off sigstack. */ void @@ -116,10 +118,35 @@ __sigreturn (struct sigcontext *scp) if (scp->sc_onstack) ss->sigaltstack.ss_flags &= ~SS_ONSTACK; - if (scp->sc_fpused) - /* Restore the FPU state. Mach conveniently stores the state - in the format the i387 `frstor' instruction uses to restore it. */ - asm volatile ("frstor %0" : : "m" (scp->sc_fpsave)); +#ifdef i386_XFLOAT_STATE + if (scp->xstate) + { + if (scp->xstate->initialized) + { + unsigned eax, ebx, ecx, edx; + __cpuid_count(0xd, 0, eax, ebx, ecx, edx); + switch (scp->xstate->fp_save_kind) + { + case 0: // FNSAVE + asm volatile("frstor %0" : : "m" (scp->xstate->hw_state)); + break; + case 1: // FXSAVE + asm volatile("fxrstor %0" : : "m" (scp->xstate->hw_state), \ + "a" (eax), "d" (edx)); + break; + default: // XSAVE, XSAVEOPT, XSAVEC, XSAVES + asm volatile("xrstor %0" : : "m" (scp->xstate->hw_state), \ + "a" (eax), "d" (edx)); + break; + } + } + } + else +#endif + if (scp->sc_fpused) + /* Restore the FPU state. Mach conveniently stores the state + in the format the i387 `frstor' instruction uses to restore it. */ + asm volatile ("frstor %0" : : "m" (scp->sc_fpsave)); /* Copy the registers onto the user's stack, to be able to release the altstack (by unlocking sigstate). Note that unless an altstack is used, diff --git a/sysdeps/mach/sysdep.h b/sysdeps/mach/sysdep.h index 8293c66..581bdcd 100644 --- a/sysdeps/mach/sysdep.h +++ b/sysdeps/mach/sysdep.h @@ -20,6 +20,11 @@ /* Get the Mach definitions of ENTRY and kernel_trap. */ #include <mach/machine/syscall_sw.h> +/* This macro is defined in Mach system headers, but string functions use it + with different definitions depending on whether being compiled for + wide-characters or not. */ +#undef P2ALIGN + /* The Mach definitions assume underscores should be prepended to symbol names. Redefine them to do so only when appropriate. */ #undef EXT |