#include <i386/psl.h>
#include <i386/machine_routines.h>
#include <i386/seg.h>
+#include <i386/fpu.h>
-#include <sys/kdebug.h>
+#include <machine/pal_routines.h>
+#include <sys/kdebug.h>
#include <sys/sdt.h>
-
/* Forward: */
extern boolean_t machine_exception(int, mach_exception_code_t,
mach_exception_subcode_t, int *, mach_exception_subcode_t *);
-extern kern_return_t thread_getstatus(register thread_t act, int flavor,
+extern kern_return_t thread_getstatus(thread_t act, int flavor,
thread_state_t tstate, mach_msg_type_number_t *count);
extern kern_return_t thread_setstatus(thread_t thread, int flavor,
thread_state_t tstate, mach_msg_type_number_t count);
user32_addr_t uctx; /* struct ucontext32 */
};
+/*
+ * Declare table of structure flavors and sizes for 64-bit and 32-bit processes
+ * for the cases of extended states (plain FP, or AVX):
+ */
+typedef struct {
+ int flavor; natural_t state_count; size_t mcontext_size;
+} xstate_info_t;
+static const xstate_info_t thread_state64[] = {
+ [FP] = { x86_FLOAT_STATE64, x86_FLOAT_STATE64_COUNT, sizeof(struct mcontext64) },
+ [AVX] = { x86_AVX_STATE64, x86_AVX_STATE64_COUNT, sizeof(struct mcontext_avx64) },
+#if !defined(RC_HIDE_XNU_J137)
+ [AVX512] = { x86_AVX512_STATE64, x86_AVX512_STATE64_COUNT, sizeof(struct mcontext_avx512_64) }
+#endif
+};
+static const xstate_info_t thread_state32[] = {
+ [FP] = { x86_FLOAT_STATE32, x86_FLOAT_STATE32_COUNT, sizeof(struct mcontext32) },
+ [AVX] = { x86_AVX_STATE32, x86_AVX_STATE32_COUNT, sizeof(struct mcontext_avx32) },
+#if !defined(RC_HIDE_XNU_J137)
+ [AVX512] = { x86_AVX512_STATE32, x86_AVX512_STATE32_COUNT, sizeof(struct mcontext_avx512_32) }
+#endif
+};
+
/*
* NOTE: Source and target may *NOT* overlap!
+ * XXX: Unify with bsd/kern/kern_exit.c
*/
static void
-siginfo_user_to_user32(user_siginfo_t *in, user32_siginfo_t *out)
+siginfo_user_to_user32_x86(user_siginfo_t *in, user32_siginfo_t *out)
{
out->si_signo = in->si_signo;
out->si_errno = in->si_errno;
}
static void
-siginfo_user_to_user64(user_siginfo_t *in, user64_siginfo_t *out)
+siginfo_user_to_user64_x86(user_siginfo_t *in, user64_siginfo_t *out)
{
out->si_signo = in->si_signo;
out->si_errno = in->si_errno;
void
sendsig(struct proc *p, user_addr_t ua_catcher, int sig, int mask, __unused uint32_t code)
{
- union {
- struct mcontext32 mctx32;
- struct mcontext64 mctx64;
- } mctx;
+ union {
+ struct mcontext_avx32 mctx_avx32;
+ struct mcontext_avx64 mctx_avx64;
+#if !defined(RC_HIDE_XNU_J137)
+ struct mcontext_avx512_32 mctx_avx512_32;
+ struct mcontext_avx512_64 mctx_avx512_64;
+#endif
+ } mctx_store, *mctxp = &mctx_store;
+
user_addr_t ua_sp;
user_addr_t ua_fp;
user_addr_t ua_cr2;
struct uthread * ut;
int stack_size = 0;
int infostyle = UC_TRAD;
-
+ xstate_t sig_xstate;
+
thread = current_thread();
ut = get_bsdthread_info(thread);
bzero((caddr_t)&sinfo64, sizeof(sinfo64));
sinfo64.si_signo = sig;
-
+
+ bzero(mctxp, sizeof(*mctxp));
+
+ sig_xstate = current_xstate();
if (proc_is64bit(p)) {
x86_thread_state64_t *tstate64;
flavor = x86_THREAD_STATE64;
state_count = x86_THREAD_STATE64_COUNT;
- state = (void *)&mctx.mctx64.ss;
+ state = (void *)&mctxp->mctx_avx64.ss;
if (thread_getstatus(thread, flavor, (thread_state_t)state, &state_count) != KERN_SUCCESS)
goto bad;
- flavor = x86_FLOAT_STATE64;
- state_count = x86_FLOAT_STATE64_COUNT;
- state = (void *)&mctx.mctx64.fs;
+ flavor = thread_state64[sig_xstate].flavor;
+ state_count = thread_state64[sig_xstate].state_count;
+ state = (void *)&mctxp->mctx_avx64.fs;
if (thread_getstatus(thread, flavor, (thread_state_t)state, &state_count) != KERN_SUCCESS)
goto bad;
flavor = x86_EXCEPTION_STATE64;
state_count = x86_EXCEPTION_STATE64_COUNT;
- state = (void *)&mctx.mctx64.es;
+ state = (void *)&mctxp->mctx_avx64.es;
if (thread_getstatus(thread, flavor, (thread_state_t)state, &state_count) != KERN_SUCCESS)
goto bad;
- tstate64 = &mctx.mctx64.ss;
+ tstate64 = &mctxp->mctx_avx64.ss;
/* figure out where our new stack lives */
if ((ut->uu_flag & UT_ALTSTACK) && !oonstack &&
} else {
ua_sp = tstate64->rsp;
}
- ua_cr2 = mctx.mctx64.es.faultvaddr;
+ ua_cr2 = mctxp->mctx_avx64.es.faultvaddr;
/* The x86_64 ABI defines a 128-byte red zone. */
ua_sp -= C_64_REDZONE_LEN;
ua_sp -= sizeof (user64_siginfo_t);
ua_sip = ua_sp;
- ua_sp -= sizeof (struct mcontext64);
+ ua_sp -= thread_state64[sig_xstate].mcontext_size;
ua_mctxp = ua_sp;
/*
uctx64.uc_stack.ss_flags |= SS_ONSTACK;
uctx64.uc_link = 0;
- uctx64.uc_mcsize = sizeof(struct mcontext64);
+ uctx64.uc_mcsize = thread_state64[sig_xstate].mcontext_size;
uctx64.uc_mcontext64 = ua_mctxp;
if (copyout((caddr_t)&uctx64, ua_uctxp, sizeof (uctx64)))
goto bad;
- if (copyout((caddr_t)&mctx.mctx64, ua_mctxp, sizeof (struct mcontext64)))
+ if (copyout((caddr_t)&mctx_store, ua_mctxp, thread_state64[sig_xstate].mcontext_size))
goto bad;
sinfo64.pad[0] = tstate64->rsp;
flavor = x86_THREAD_STATE32;
state_count = x86_THREAD_STATE32_COUNT;
- state = (void *)&mctx.mctx32.ss;
+ state = (void *)&mctxp->mctx_avx32.ss;
if (thread_getstatus(thread, flavor, (thread_state_t)state, &state_count) != KERN_SUCCESS)
goto bad;
- flavor = x86_FLOAT_STATE32;
- state_count = x86_FLOAT_STATE32_COUNT;
- state = (void *)&mctx.mctx32.fs;
+ flavor = thread_state32[sig_xstate].flavor;
+ state_count = thread_state32[sig_xstate].state_count;
+ state = (void *)&mctxp->mctx_avx32.fs;
if (thread_getstatus(thread, flavor, (thread_state_t)state, &state_count) != KERN_SUCCESS)
goto bad;
flavor = x86_EXCEPTION_STATE32;
state_count = x86_EXCEPTION_STATE32_COUNT;
- state = (void *)&mctx.mctx32.es;
+ state = (void *)&mctxp->mctx_avx32.es;
if (thread_getstatus(thread, flavor, (thread_state_t)state, &state_count) != KERN_SUCCESS)
goto bad;
- tstate32 = &mctx.mctx32.ss;
+ tstate32 = &mctxp->mctx_avx32.ss;
/* figure out where our new stack lives */
if ((ut->uu_flag & UT_ALTSTACK) && !oonstack &&
} else {
ua_sp = tstate32->esp;
}
- ua_cr2 = mctx.mctx32.es.faultvaddr;
+ ua_cr2 = mctxp->mctx_avx32.es.faultvaddr;
ua_sp -= sizeof (struct user_ucontext32);
ua_uctxp = ua_sp; // someone tramples the first word!
ua_sp -= sizeof (user32_siginfo_t);
ua_sip = ua_sp;
- ua_sp -= sizeof (struct mcontext32);
+ ua_sp -= thread_state32[sig_xstate].mcontext_size;
ua_mctxp = ua_sp;
ua_sp -= sizeof (struct sigframe32);
uctx32.uc_stack.ss_flags |= SS_ONSTACK;
uctx32.uc_link = 0;
- uctx32.uc_mcsize = sizeof(struct mcontext32);
+ uctx32.uc_mcsize = thread_state64[sig_xstate].mcontext_size;
uctx32.uc_mcontext = CAST_DOWN_EXPLICIT(user32_addr_t, ua_mctxp);
if (copyout((caddr_t)&uctx32, ua_uctxp, sizeof (uctx32)))
goto bad;
- if (copyout((caddr_t)&mctx.mctx32, ua_mctxp, sizeof (struct mcontext32)))
+ if (copyout((caddr_t)&mctx_store, ua_mctxp, thread_state32[sig_xstate].mcontext_size))
goto bad;
sinfo64.pad[0] = tstate32->esp;
* in the siginfo to the handler is supposed to only
* contain the status, so we have to shift it out.
*/
- sinfo64.si_status = WEXITSTATUS(status_and_exitcode);
+ sinfo64.si_status = (WEXITSTATUS(status_and_exitcode) & 0x00FFFFFF) | (((uint32_t)(p->p_xhighbits) << 24) & 0xFF000000);
+ p->p_xhighbits = 0;
break;
}
}
bzero((caddr_t)&sinfo64_user64, sizeof(sinfo64_user64));
- siginfo_user_to_user64(&sinfo64,&sinfo64_user64);
+ siginfo_user_to_user64_x86(&sinfo64,&sinfo64_user64);
#if CONFIG_DTRACE
bzero((caddr_t)&(ut->t_dtrace_siginfo), sizeof(ut->t_dtrace_siginfo));
flavor = x86_THREAD_STATE64;
state_count = x86_THREAD_STATE64_COUNT;
- state = (void *)&mctx.mctx64.ss;
+ state = (void *)&mctxp->mctx_avx64.ss;
} else {
x86_thread_state32_t *tstate32;
user32_siginfo_t sinfo32;
bzero((caddr_t)&sinfo32, sizeof(sinfo32));
- siginfo_user_to_user32(&sinfo64,&sinfo32);
+ siginfo_user_to_user32_x86(&sinfo64,&sinfo32);
#if CONFIG_DTRACE
bzero((caddr_t)&(ut->t_dtrace_siginfo), sizeof(ut->t_dtrace_siginfo));
if (copyout((caddr_t)&sinfo32, ua_sip, sizeof (sinfo32)))
goto bad;
- tstate32 = &mctx.mctx32.ss;
+ tstate32 = &mctxp->mctx_avx32.ss;
tstate32->eip = CAST_DOWN_EXPLICIT(user32_addr_t, trampact);
tstate32->esp = CAST_DOWN_EXPLICIT(user32_addr_t, ua_fp);
goto bad;
ml_fp_setvalid(FALSE);
+ /* Tell the PAL layer about the signal */
+ pal_set_signal_delivery( thread );
proc_lock(p);
return;
bad:
+
proc_lock(p);
SIGACTION(p, SIGILL) = SIG_DFL;
sig = sigmask(SIGILL);
int
sigreturn(struct proc *p, struct sigreturn_args *uap, __unused int *retval)
{
- union {
- struct mcontext32 mctx32;
- struct mcontext64 mctx64;
- } mctx;
+ union {
+ struct mcontext_avx32 mctx_avx32;
+ struct mcontext_avx64 mctx_avx64;
+#if !defined(RC_HIDE_XNU_J137)
+ struct mcontext_avx512_32 mctx_avx512_32;
+ struct mcontext_avx512_64 mctx_avx512_64;
+#endif
+ } mctx_store, *mctxp = &mctx_store;
+
thread_t thread = current_thread();
struct uthread * ut;
int error;
mach_msg_type_number_t fs_count;
unsigned int fs_flavor;
void * fs;
+ int rval = EJUSTRETURN;
+ xstate_t sig_xstate;
ut = (struct uthread *)get_bsdthread_info(thread);
return (0);
}
+ bzero(mctxp, sizeof(*mctxp));
+
+ sig_xstate = current_xstate();
+
if (proc_is64bit(p)) {
struct user_ucontext64 uctx64;
if ((error = copyin(uap->uctx, (void *)&uctx64, sizeof (uctx64))))
return(error);
- if ((error = copyin(uctx64.uc_mcontext64, (void *)&mctx.mctx64, sizeof (struct mcontext64))))
+ if ((error = copyin(uctx64.uc_mcontext64, (void *)mctxp, thread_state64[sig_xstate].mcontext_size)))
return(error);
onstack = uctx64.uc_onstack & 01;
ut->uu_sigmask = uctx64.uc_sigmask & ~sigcantmask;
- ts_flavor = x86_THREAD_STATE64;
+ ts_flavor = x86_THREAD_STATE64;
ts_count = x86_THREAD_STATE64_COUNT;
- ts = (void *)&mctx.mctx64.ss;
+ ts = (void *)&mctxp->mctx_avx64.ss;
- fs_flavor = x86_FLOAT_STATE64;
- fs_count = x86_FLOAT_STATE64_COUNT;
- fs = (void *)&mctx.mctx64.fs;
+ fs_flavor = thread_state64[sig_xstate].flavor;
+ fs_count = thread_state64[sig_xstate].state_count;
+ fs = (void *)&mctxp->mctx_avx64.fs;
} else {
struct user_ucontext32 uctx32;
if ((error = copyin(uap->uctx, (void *)&uctx32, sizeof (uctx32))))
return(error);
- if ((error = copyin(CAST_USER_ADDR_T(uctx32.uc_mcontext), (void *)&mctx.mctx32, sizeof (struct mcontext32))))
+ if ((error = copyin(CAST_USER_ADDR_T(uctx32.uc_mcontext), (void *)mctxp, thread_state32[sig_xstate].mcontext_size)))
return(error);
onstack = uctx32.uc_onstack & 01;
ts_flavor = x86_THREAD_STATE32;
ts_count = x86_THREAD_STATE32_COUNT;
- ts = (void *)&mctx.mctx32.ss;
+ ts = (void *)&mctxp->mctx_avx32.ss;
- fs_flavor = x86_FLOAT_STATE32;
- fs_count = x86_FLOAT_STATE32_COUNT;
- fs = (void *)&mctx.mctx32.fs;
+ fs_flavor = thread_state32[sig_xstate].flavor;
+ fs_count = thread_state32[sig_xstate].state_count;
+ fs = (void *)&mctxp->mctx_avx32.fs;
}
if (onstack)
if (ut->uu_siglist & ~ut->uu_sigmask)
signal_setast(thread);
-
/*
* thread_set_state() does all the needed checks for the passed in
* content
*/
- if (thread_setstatus(thread, ts_flavor, ts, ts_count) != KERN_SUCCESS)
- return(EINVAL);
-
+ if (thread_setstatus(thread, ts_flavor, ts, ts_count) != KERN_SUCCESS) {
+ rval = EINVAL;
+ goto error_ret;
+ }
+
ml_fp_setvalid(TRUE);
- if (thread_setstatus(thread, fs_flavor, fs, fs_count) != KERN_SUCCESS)
- return(EINVAL);
+ if (thread_setstatus(thread, fs_flavor, fs, fs_count) != KERN_SUCCESS) {
+ rval = EINVAL;
+ goto error_ret;
- return (EJUSTRETURN);
+ }
+error_ret:
+ return rval;
}
projects / apple / xnu.git / blobdiff