diff options
Diffstat (limited to 'gnu/packages/patches/glibc-hurd-signal-sa-siginfo.patch')
| -rw-r--r-- | gnu/packages/patches/glibc-hurd-signal-sa-siginfo.patch | 637 |
1 files changed, 637 insertions, 0 deletions
diff --git a/gnu/packages/patches/glibc-hurd-signal-sa-siginfo.patch b/gnu/packages/patches/glibc-hurd-signal-sa-siginfo.patch new file mode 100644 index 0000000000..36ea55e188 --- /dev/null +++ b/gnu/packages/patches/glibc-hurd-signal-sa-siginfo.patch @@ -0,0 +1,637 @@ +This patch is needed to build e2fsprogs, util-linux. + +Taken from https://salsa.debian.org/glibc-team/glibc/-/blob/glibc-2.31/debian/patches/hurd-i386/tg-hurdsig-SA_SIGINFO.diff + +From: Jeremie Koenig <jk@jk.fr.eu.org> +Subject: [PATCH] implement SA_SIGINFO signal handlers. + + 52baaca Hurd signals: Copy bits/sigaction.h + 4232c66 Hurd signals: SA_SIGINFO support + 1831cfe Hurd signals: Use POSIX sigcodes + +--- + hurd/hurd/signal.h | 5 + + hurd/hurdfault.c | 2 + hurd/hurdinit.c | 2 + hurd/hurdsig.c | 6 - + sysdeps/mach/hurd/bits/sigaction.h | 86 +++++++++++++++++++++ + sysdeps/mach/hurd/i386/bits/sigcontext.h | 4 + sysdeps/mach/hurd/i386/exc2signal.c | 123 +++++++++++++++++++----------- + sysdeps/mach/hurd/i386/trampoline.c | 125 ++++++++++++++++++++++++++++--- + sysdeps/mach/hurd/kill.c | 2 + sysdeps/mach/hurd/setitimer.c | 2 + 10 files changed, 293 insertions(+), 64 deletions(-) + +Index: glibc-2.31/hurd/hurd/signal.h +=================================================================== +--- glibc-2.31.orig/hurd/hurd/signal.h ++++ glibc-2.31/hurd/hurd/signal.h +@@ -290,6 +290,11 @@ extern int _hurd_raise_signal (struct hu + extern void _hurd_exception2signal (struct hurd_signal_detail *detail, + int *signo); + ++/* Translate a Mach exception into a signal with a legacy sigcode. */ ++ ++extern void _hurd_exception2signal_legacy (struct hurd_signal_detail *detail, ++ int *signo); ++ + + /* Make the thread described by SS take the signal described by SIGNO and + DETAIL. If the process is traced, this will in fact stop with a SIGNO +Index: glibc-2.31/hurd/hurdfault.c +=================================================================== +--- glibc-2.31.orig/hurd/hurdfault.c ++++ glibc-2.31/hurd/hurdfault.c +@@ -70,7 +70,7 @@ _hurdsig_fault_catch_exception_raise (ma + codes into a signal number and subcode. */ + _hurd_exception2signal (&d, &signo); + +- return HURD_PREEMPT_SIGNAL_P (&_hurdsig_fault_preemptor, signo, d.code) ++ return HURD_PREEMPT_SIGNAL_P (&_hurdsig_fault_preemptor, signo, d.exc_subcode) + ? 0 : EGREGIOUS; + } + +Index: glibc-2.31/hurd/hurdinit.c +=================================================================== +--- glibc-2.31.orig/hurd/hurdinit.c ++++ glibc-2.31/hurd/hurdinit.c +@@ -177,7 +177,7 @@ _hurd_new_proc_init (char **argv, + /* This process is "traced", meaning it should stop on signals or exec. + We are all set up now to handle signals. Stop ourselves, to inform + our parent (presumably a debugger) that the exec has completed. */ +- __msg_sig_post (_hurd_msgport, SIGTRAP, 0, __mach_task_self ()); ++ __msg_sig_post (_hurd_msgport, SIGTRAP, TRAP_TRACE, __mach_task_self ()); + } + + #include <shlib-compat.h> +Index: glibc-2.31/hurd/hurdsig.c +=================================================================== +--- glibc-2.31.orig/hurd/hurdsig.c ++++ glibc-2.31/hurd/hurdsig.c +@@ -730,7 +730,7 @@ post_signal (struct hurd_sigstate *ss, + { /* PE cannot be null. */ + do + { +- if (HURD_PREEMPT_SIGNAL_P (pe, signo, detail->code)) ++ if (HURD_PREEMPT_SIGNAL_P (pe, signo, detail->exc_subcode)) + { + if (pe->preemptor) + { +@@ -1374,7 +1374,7 @@ _S_msg_sig_post (mach_port_t me, + if (err = signal_allowed (signo, refport)) + return err; + +- d.code = sigcode; ++ d.code = d.exc_subcode = sigcode; + d.exc = 0; + + /* Post the signal to a global receiver thread (or mark it pending in +@@ -1403,7 +1403,7 @@ _S_msg_sig_post_untraced (mach_port_t me + if (err = signal_allowed (signo, refport)) + return err; + +- d.code = sigcode; ++ d.code = d.exc_subcode = sigcode; + d.exc = 0; + + /* Post the signal to the designated signal-receiving thread. This will +Index: glibc-2.31/sysdeps/mach/hurd/bits/sigaction.h +=================================================================== +--- /dev/null ++++ glibc-2.31/sysdeps/mach/hurd/bits/sigaction.h +@@ -0,0 +1,86 @@ ++/* Copyright (C) 1991-2015 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, write to the Free ++ Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA ++ 02111-1307 USA. */ ++ ++#ifndef _BITS_SIGACTION_H ++#define _BITS_SIGACTION_H 1 ++ ++#ifndef _SIGNAL_H ++# error "Never include <bits/sigaction.h> directly; use <signal.h> instead." ++#endif ++ ++/* These definitions match those used by the 4.4 BSD kernel. ++ If the operating system has a `sigaction' system call that correctly ++ implements the POSIX.1 behavior, there should be a system-dependent ++ version of this file that defines `struct sigaction' and the `SA_*' ++ constants appropriately. */ ++ ++/* Structure describing the action to be taken when a signal arrives. */ ++struct sigaction ++ { ++ /* Signal handler. */ ++#if defined __USE_POSIX199309 || defined __USE_XOPEN_EXTENDED ++ union ++ { ++ /* Used if SA_SIGINFO is not set. */ ++ __sighandler_t sa_handler; ++ /* Used if SA_SIGINFO is set. */ ++ void (*sa_sigaction) (int, siginfo_t *, void *); ++ } ++ __sigaction_handler; ++# define sa_handler __sigaction_handler.sa_handler ++# define sa_sigaction __sigaction_handler.sa_sigaction ++#else ++ __sighandler_t sa_handler; ++#endif ++ ++ /* Additional set of signals to be blocked. */ ++ __sigset_t sa_mask; ++ ++ /* Special flags. */ ++ int sa_flags; ++ }; ++ ++/* Bits in `sa_flags'. */ ++#if defined __USE_XOPEN_EXTENDED || defined __USE_MISC ++# define SA_ONSTACK 0x0001 /* Take signal on signal stack. */ ++#endif ++#if defined __USE_XOPEN_EXTENDED || defined __USE_XOPEN2K8 ++# define SA_RESTART 0x0002 /* Restart syscall on signal return. */ ++# define SA_NODEFER 0x0010 /* Don't automatically block the signal when ++ its handler is being executed. */ ++# define SA_RESETHAND 0x0004 /* Reset to SIG_DFL on entry to handler. */ ++#endif ++#define SA_NOCLDSTOP 0x0008 /* Don't send SIGCHLD when children stop. */ ++#define SA_SIGINFO 0x0040 /* Signal handler with SA_SIGINFO args */ ++ ++#ifdef __USE_MISC ++# define SA_INTERRUPT 0 /* Historical no-op ("not SA_RESTART"). */ ++ ++/* Some aliases for the SA_ constants. */ ++# define SA_NOMASK SA_NODEFER ++# define SA_ONESHOT SA_RESETHAND ++# define SA_STACK SA_ONSTACK ++#endif ++ ++ ++/* Values for the HOW argument to `sigprocmask'. */ ++#define SIG_BLOCK 1 /* Block signals. */ ++#define SIG_UNBLOCK 2 /* Unblock signals. */ ++#define SIG_SETMASK 3 /* Set the set of blocked signals. */ ++ ++#endif +Index: glibc-2.31/sysdeps/mach/hurd/i386/bits/sigcontext.h +=================================================================== +--- glibc-2.31.orig/sysdeps/mach/hurd/i386/bits/sigcontext.h ++++ glibc-2.31/sysdeps/mach/hurd/i386/bits/sigcontext.h +@@ -97,6 +97,10 @@ struct sigcontext + #define sc_ps sc_efl + + ++/* The deprecated sigcode values below are passed as an extra, non-portable ++ argument to regular signal handlers. You should use SA_SIGINFO handlers ++ instead, which use the standard POSIX signal codes. */ ++ + /* Codes for SIGFPE. */ + #define FPE_INTOVF_TRAP 0x1 /* integer overflow */ + #define FPE_INTDIV_FAULT 0x2 /* integer divide by zero */ +Index: glibc-2.31/sysdeps/mach/hurd/i386/exc2signal.c +=================================================================== +--- glibc-2.31.orig/sysdeps/mach/hurd/i386/exc2signal.c ++++ glibc-2.31/sysdeps/mach/hurd/i386/exc2signal.c +@@ -23,8 +23,8 @@ + /* Translate the Mach exception codes, as received in an `exception_raise' RPC, + into a signal number and signal subcode. */ + +-void +-_hurd_exception2signal (struct hurd_signal_detail *detail, int *signo) ++static void ++exception2signal (struct hurd_signal_detail *detail, int *signo, int posix) + { + detail->error = 0; + +@@ -36,44 +36,62 @@ _hurd_exception2signal (struct hurd_sign + break; + + case EXC_BAD_ACCESS: +- if (detail->exc_code == KERN_INVALID_ADDRESS +- || detail->exc_code == KERN_PROTECTION_FAILURE +- || detail->exc_code == KERN_WRITE_PROTECTION_FAILURE) +- *signo = SIGSEGV; +- else +- *signo = SIGBUS; +- detail->code = detail->exc_subcode; ++ switch (detail->exc_code) ++ { ++ case KERN_INVALID_ADDRESS: ++ case KERN_MEMORY_FAILURE: ++ *signo = SIGSEGV; ++ detail->code = posix ? SEGV_MAPERR : detail->exc_subcode; ++ break; ++ ++ case KERN_PROTECTION_FAILURE: ++ case KERN_WRITE_PROTECTION_FAILURE: ++ *signo = SIGSEGV; ++ detail->code = posix ? SEGV_ACCERR : detail->exc_subcode; ++ break; ++ ++ default: ++ *signo = SIGBUS; ++ detail->code = posix ? BUS_ADRERR : detail->exc_subcode; ++ break; ++ } + detail->error = detail->exc_code; + break; + + case EXC_BAD_INSTRUCTION: + *signo = SIGILL; +- if (detail->exc_code == EXC_I386_INVOP) +- detail->code = ILL_INVOPR_FAULT; +- else if (detail->exc_code == EXC_I386_STKFLT) +- detail->code = ILL_STACK_FAULT; +- else +- detail->code = 0; ++ switch (detail->exc_code) ++ { ++ case EXC_I386_INVOP: ++ detail->code = posix ? ILL_ILLOPC : ILL_INVOPR_FAULT; ++ break; ++ ++ case EXC_I386_STKFLT: ++ detail->code = posix ? ILL_BADSTK : ILL_STACK_FAULT; ++ break; ++ ++ default: ++ detail->code = 0; ++ break; ++ } + break; + + case EXC_ARITHMETIC: ++ *signo = SIGFPE; + switch (detail->exc_code) + { + case EXC_I386_DIV: /* integer divide by zero */ +- *signo = SIGFPE; +- detail->code = FPE_INTDIV_FAULT; ++ detail->code = posix ? FPE_INTDIV : FPE_INTDIV_FAULT; + break; + + case EXC_I386_INTO: /* integer overflow */ +- *signo = SIGFPE; +- detail->code = FPE_INTOVF_TRAP; ++ detail->code = posix ? FPE_INTOVF : FPE_INTOVF_TRAP; + break; + + /* These aren't anywhere documented or used in Mach 3.0. */ + case EXC_I386_NOEXT: + case EXC_I386_EXTOVR: + default: +- *signo = SIGFPE; + detail->code = 0; + break; + +@@ -82,51 +100,43 @@ _hurd_exception2signal (struct hurd_sign + Give an error code corresponding to the first bit set. */ + if (detail->exc_subcode & FPS_IE) + { +- *signo = SIGILL; +- detail->code = ILL_FPEOPR_FAULT; ++ /* NB: We used to send SIGILL here but we can't distinguish ++ POSIX vs. legacy with respect to what signal we send. */ ++ detail->code = posix ? FPE_FLTINV : 0 /*ILL_FPEOPR_FAULT*/; + } + else if (detail->exc_subcode & FPS_DE) + { +- *signo = SIGFPE; +- detail->code = FPE_FLTDNR_FAULT; ++ detail->code = posix ? FPE_FLTUND : FPE_FLTDNR_FAULT; + } + else if (detail->exc_subcode & FPS_ZE) + { +- *signo = SIGFPE; +- detail->code = FPE_FLTDIV_FAULT; ++ detail->code = posix ? FPE_FLTDIV : FPE_FLTDIV_FAULT; + } + else if (detail->exc_subcode & FPS_OE) + { +- *signo = SIGFPE; +- detail->code = FPE_FLTOVF_FAULT; ++ detail->code = posix ? FPE_FLTOVF : FPE_FLTOVF_FAULT; + } + else if (detail->exc_subcode & FPS_UE) + { +- *signo = SIGFPE; +- detail->code = FPE_FLTUND_FAULT; ++ detail->code = posix ? FPE_FLTUND : FPE_FLTUND_FAULT; + } + else if (detail->exc_subcode & FPS_PE) + { +- *signo = SIGFPE; +- detail->code = FPE_FLTINX_FAULT; ++ detail->code = posix ? FPE_FLTRES : FPE_FLTINX_FAULT; + } + else + { +- *signo = SIGFPE; + detail->code = 0; + } + break; + + /* These two can only be arithmetic exceptions if we +- are in V86 mode, which sounds like emulation to me. +- (See Mach 3.0 i386/trap.c.) */ ++ are in V86 mode. (See Mach 3.0 i386/trap.c.) */ + case EXC_I386_EMERR: +- *signo = SIGFPE; +- detail->code = FPE_EMERR_FAULT; ++ detail->code = posix ? 0 : FPE_EMERR_FAULT; + break; + case EXC_I386_BOUND: +- *signo = SIGFPE; +- detail->code = FPE_EMBND_FAULT; ++ detail->code = posix ? FPE_FLTSUB : FPE_EMBND_FAULT; + break; + } + break; +@@ -143,7 +153,7 @@ _hurd_exception2signal (struct hurd_sign + if (detail->exc_code == EXC_I386_BOUND) + { + *signo = SIGFPE; +- detail->code = FPE_SUBRNG_FAULT; ++ detail->code = posix ? FPE_FLTSUB : FPE_SUBRNG_FAULT; + } + else + { +@@ -154,13 +164,34 @@ _hurd_exception2signal (struct hurd_sign + + case EXC_BREAKPOINT: + *signo = SIGTRAP; +- if (detail->exc_code == EXC_I386_SGL) +- detail->code = DBG_SINGLE_TRAP; +- else if (detail->exc_code == EXC_I386_BPT) +- detail->code = DBG_BRKPNT_FAULT; +- else +- detail->code = 0; ++ switch (detail->exc_code) ++ { ++ case EXC_I386_SGL: ++ detail->code = posix ? TRAP_BRKPT : DBG_SINGLE_TRAP; ++ break; ++ ++ case EXC_I386_BPT: ++ detail->code = posix ? TRAP_BRKPT : DBG_BRKPNT_FAULT; ++ break; ++ ++ default: ++ detail->code = 0; ++ break; ++ } + break; + } + } + libc_hidden_def (_hurd_exception2signal) ++ ++void ++_hurd_exception2signal (struct hurd_signal_detail *detail, int *signo) ++{ ++ exception2signal (detail, signo, 1); ++} ++ ++void ++_hurd_exception2signal_legacy (struct hurd_signal_detail *detail, int *signo) ++{ ++ exception2signal (detail, signo, 0); ++} ++ +Index: glibc-2.31/sysdeps/mach/hurd/i386/trampoline.c +=================================================================== +--- glibc-2.31.orig/sysdeps/mach/hurd/i386/trampoline.c ++++ glibc-2.31/sysdeps/mach/hurd/i386/trampoline.c +@@ -19,13 +19,66 @@ + #include <hurd/signal.h> + #include <hurd/userlink.h> + #include <thread_state.h> ++#include <mach/exception.h> + #include <mach/machine/eflags.h> + #include <assert.h> + #include <errno.h> + #include "hurdfault.h" + #include <intr-msg.h> ++#include <sys/ucontext.h> + + ++/* Fill in a siginfo_t structure for SA_SIGINFO-enabled handlers. */ ++static void fill_siginfo (siginfo_t *si, int signo, ++ const struct hurd_signal_detail *detail, ++ const struct machine_thread_all_state *state) ++{ ++ si->si_signo = signo; ++ si->si_errno = detail->error; ++ si->si_code = detail->code; ++ ++ /* XXX We would need a protocol change for sig_post to include ++ * this information. */ ++ si->si_pid = -1; ++ si->si_uid = -1; ++ ++ /* Address of the faulting instruction or memory access. */ ++ if (detail->exc == EXC_BAD_ACCESS) ++ si->si_addr = (void *) detail->exc_subcode; ++ else ++ si->si_addr = (void *) state->basic.eip; ++ ++ /* XXX On SIGCHLD, this should be the exit status of the child ++ * process. We would need a protocol change for the proc server ++ * to send this information along with the signal. */ ++ si->si_status = 0; ++ ++ si->si_band = 0; /* SIGPOLL is not supported yet. */ ++ si->si_value.sival_int = 0; /* sigqueue() is not supported yet. */ ++} ++ ++/* Fill in a ucontext_t structure SA_SIGINFO-enabled handlers. */ ++static void fill_ucontext (ucontext_t *uc, const struct sigcontext *sc) ++{ ++ uc->uc_flags = 0; ++ uc->uc_link = NULL; ++ uc->uc_sigmask = sc->sc_mask; ++ uc->uc_stack.ss_sp = (__ptr_t) sc->sc_esp; ++ uc->uc_stack.ss_size = 0; ++ uc->uc_stack.ss_flags = 0; ++ ++ /* Registers. */ ++ memcpy (&uc->uc_mcontext.gregs[REG_GS], &sc->sc_gs, ++ (REG_TRAPNO - REG_GS) * sizeof (int)); ++ uc->uc_mcontext.gregs[REG_TRAPNO] = 0; ++ uc->uc_mcontext.gregs[REG_ERR] = 0; ++ memcpy (&uc->uc_mcontext.gregs[REG_EIP], &sc->sc_eip, ++ (NGREG - REG_EIP) * sizeof (int)); ++ ++ /* XXX FPU state. */ ++ memset (&uc->uc_mcontext.fpregs, 0, sizeof (fpregset_t)); ++} ++ + struct sigcontext * + _hurd_setup_sighandler (struct hurd_sigstate *ss, __sighandler_t handler, + int signo, struct hurd_signal_detail *detail, +@@ -43,15 +96,38 @@ _hurd_setup_sighandler (struct hurd_sigs + struct + { + int signo; +- long int sigcode; +- struct sigcontext *scp; /* Points to ctx, below. */ ++ union ++ { ++ /* Extra arguments for traditional signal handlers */ ++ struct ++ { ++ long int sigcode; ++ struct sigcontext *scp; /* Points to ctx, below. */ ++ } legacy; ++ ++ /* Extra arguments for SA_SIGINFO handlers */ ++ struct ++ { ++ siginfo_t *siginfop; /* Points to siginfo, below. */ ++ ucontext_t *uctxp; /* Points to uctx, below. */ ++ } posix; ++ }; + void *sigreturn_addr; + void *sigreturn_returns_here; + struct sigcontext *return_scp; /* Same; arg to sigreturn. */ ++ ++ /* NB: sigreturn assumes link is next to ctx. */ + struct sigcontext ctx; + struct hurd_userlink link; ++ ucontext_t ucontext; ++ siginfo_t siginfo; + } *stackframe; + ++ /* sigaction for preemptors */ ++ static const struct sigaction legacy_sigaction = { ++ .sa_flags = SA_RESTART ++ }; ++ + if (ss->context) + { + /* We have a previous sigcontext that sigreturn was about +@@ -94,9 +170,13 @@ _hurd_setup_sighandler (struct hurd_sigs + the SP on sigreturn. */ + state->basic.uesp = state->basic.ecx; + +- /* XXX what if handler != action->handler (for instance, if a signal +- * preemptor took over) ? */ + action = & _hurd_sigstate_actions (ss) [signo]; ++ if ( (action->sa_flags & SA_SIGINFO) ++ && handler != (__sighandler_t) action->sa_sigaction ++ || !(action->sa_flags & SA_SIGINFO) ++ && handler != action->sa_handler) ++ /* A signal preemptor took over, use legacy semantic. */ ++ action = &legacy_sigaction; + + if ((action->sa_flags & SA_ONSTACK) + && !(ss->sigaltstack.ss_flags & (SS_DISABLE|SS_ONSTACK))) +@@ -140,15 +220,9 @@ _hurd_setup_sighandler (struct hurd_sigs + = &stackframe->link.thread.next; + ss->active_resources = &stackframe->link; + +- /* Set up the arguments for the signal handler. */ +- stackframe->signo = signo; +- stackframe->sigcode = detail->code; +- stackframe->scp = stackframe->return_scp = scp = &stackframe->ctx; +- stackframe->sigreturn_addr = &__sigreturn; +- stackframe->sigreturn_returns_here = firewall; /* Crash on return. */ +- + /* Set up the sigcontext from the current state of the thread. */ + ++ scp = &stackframe->ctx; + scp->sc_onstack = ss->sigaltstack.ss_flags & SS_ONSTACK ? 1 : 0; + + /* struct sigcontext is laid out so that starting at sc_gs mimics a +@@ -162,6 +236,35 @@ _hurd_setup_sighandler (struct hurd_sigs + &state->fpu, &scp->sc_i386_float_state, + sizeof (state->fpu)); + ++ /* Set up the arguments for the signal handler. */ ++ stackframe->signo = signo; ++ if (action->sa_flags & SA_SIGINFO) ++ { ++ stackframe->posix.siginfop = &stackframe->siginfo; ++ stackframe->posix.uctxp = &stackframe->ucontext; ++ fill_siginfo (&stackframe->siginfo, signo, detail, state); ++ fill_ucontext (&stackframe->ucontext, scp); ++ } ++ else ++ { ++ if (detail->exc) ++ { ++ int nsigno; ++ _hurd_exception2signal_legacy (detail, &nsigno); ++ assert (nsigno == signo); ++ } ++ else ++ detail->code = 0; ++ ++ stackframe->legacy.sigcode = detail->code; ++ stackframe->legacy.scp = &stackframe->ctx; ++ } ++ ++ /* Set up the bottom of the stack. */ ++ stackframe->sigreturn_addr = &__sigreturn; ++ stackframe->sigreturn_returns_here = firewall; /* Crash on return. */ ++ stackframe->return_scp = &stackframe->ctx; ++ + _hurdsig_end_catch_fault (); + + if (! ok) +Index: glibc-2.31/sysdeps/mach/hurd/kill.c +=================================================================== +--- glibc-2.31.orig/sysdeps/mach/hurd/kill.c ++++ glibc-2.31/sysdeps/mach/hurd/kill.c +@@ -64,7 +64,7 @@ __kill (pid_t pid, int sig) + { + if (msgport != MACH_PORT_NULL) + /* Send a signal message to his message port. */ +- return __msg_sig_post (msgport, sig, 0, refport); ++ return __msg_sig_post (msgport, sig, SI_USER, refport); + + /* The process has no message port. Perhaps try direct + frobnication of the task. */ +Index: glibc-2.31/sysdeps/mach/hurd/setitimer.c +=================================================================== +--- glibc-2.31.orig/sysdeps/mach/hurd/setitimer.c ++++ glibc-2.31/sysdeps/mach/hurd/setitimer.c +@@ -105,7 +105,7 @@ timer_thread (void) + __msg_sig_post_request (_hurd_msgport, + _hurd_itimer_port, + MACH_MSG_TYPE_MAKE_SEND_ONCE, +- SIGALRM, 0, __mach_task_self ()); ++ SIGALRM, SI_TIMER, __mach_task_self ()); + break; + + case MACH_RCV_INTERRUPTED: +Index: glibc-2.31/sysdeps/mach/hurd/i386/sigcontextinfo.h +=================================================================== +--- glibc-2.31.orig/sysdeps/mach/hurd/i386/sigcontextinfo.h ++++ glibc-2.31/sysdeps/mach/hurd/i386/sigcontextinfo.h +@@ -18,11 +18,10 @@ + #ifndef _SIGCONTEXTINFO_H + #define _SIGCONTEXTINFO_H + +-#define SIGCONTEXT struct sigcontext + static inline uintptr_t +-sigcontext_get_pc (struct sigcontext ctx) ++sigcontext_get_pc (struct ucontext_t *ctx) + { +- return ctx.sc_eip; ++ return ctx->uc_mcontext.gregs[REG_EIP]; + } + + #endif |