From: imp@bsdimp.com
To: qemu-devel@nongnu.org
Cc: Kyle Evans <kevans@FreeBSD.org>,
Richard Henderson <richard.henderson@linaro.org>,
Warner Losh <imp@FreeBSD.org>, Warner Losh <imp@bsdimp.com>,
Stacey Son <sson@FreeBSD.org>
Subject: [PULL 26/42] bsd-user: *BSD specific siginfo defintions
Date: Tue, 7 Sep 2021 15:53:16 -0600 [thread overview]
Message-ID: <20210907215332.30737-27-imp@bsdimp.com> (raw)
In-Reply-To: <20210907215332.30737-1-imp@bsdimp.com>
From: Warner Losh <imp@FreeBSD.org>
Add FreeBSD, NetBSD and OpenBSD values for the various signal info types
and defines to decode different signals to discover more information
about the specific signal types.
Signed-off-by: Stacey Son <sson@FreeBSD.org>
Signed-off-by: Warner Losh <imp@bsdimp.com>
Acked-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Kyle Evans <kevans@FreeBSD.org>
---
bsd-user/freebsd/target_os_siginfo.h | 145 +++++++++++++++++++++++++++
bsd-user/freebsd/target_os_signal.h | 78 ++++++++++++++
bsd-user/i386/target_arch_signal.h | 94 +++++++++++++++++
bsd-user/netbsd/target_os_siginfo.h | 82 +++++++++++++++
bsd-user/netbsd/target_os_signal.h | 69 +++++++++++++
bsd-user/openbsd/target_os_siginfo.h | 82 +++++++++++++++
bsd-user/openbsd/target_os_signal.h | 69 +++++++++++++
bsd-user/qemu.h | 1 +
bsd-user/syscall_defs.h | 10 --
bsd-user/x86_64/target_arch_signal.h | 94 +++++++++++++++++
10 files changed, 714 insertions(+), 10 deletions(-)
create mode 100644 bsd-user/freebsd/target_os_siginfo.h
create mode 100644 bsd-user/freebsd/target_os_signal.h
create mode 100644 bsd-user/i386/target_arch_signal.h
create mode 100644 bsd-user/netbsd/target_os_siginfo.h
create mode 100644 bsd-user/netbsd/target_os_signal.h
create mode 100644 bsd-user/openbsd/target_os_siginfo.h
create mode 100644 bsd-user/openbsd/target_os_signal.h
create mode 100644 bsd-user/x86_64/target_arch_signal.h
diff --git a/bsd-user/freebsd/target_os_siginfo.h b/bsd-user/freebsd/target_os_siginfo.h
new file mode 100644
index 0000000000..84944faa4d
--- /dev/null
+++ b/bsd-user/freebsd/target_os_siginfo.h
@@ -0,0 +1,145 @@
+/*
+ * FreeBSD siginfo related definitions
+ *
+ * Copyright (c) 2013 Stacey D. Son
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program 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 General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, see <http://www.gnu.org/licenses/>.
+ */
+#ifndef _TARGET_OS_SIGINFO_H_
+#define _TARGET_OS_SIGINFO_H_
+
+#define TARGET_NSIG 128
+#define TARGET_NSIG_BPW (sizeof(uint32_t) * 8)
+#define TARGET_NSIG_WORDS (TARGET_NSIG / TARGET_NSIG_BPW)
+
+/* this struct defines a stack used during syscall handling */
+typedef struct target_sigaltstack {
+ abi_long ss_sp;
+ abi_ulong ss_size;
+ abi_long ss_flags;
+} target_stack_t;
+
+typedef struct {
+ uint32_t __bits[TARGET_NSIG_WORDS];
+} target_sigset_t;
+
+struct target_sigaction {
+ abi_ulong _sa_handler;
+ int32_t sa_flags;
+ target_sigset_t sa_mask;
+};
+
+typedef union target_sigval {
+ int32_t sival_int;
+ abi_ulong sival_ptr;
+ int32_t sigval_int;
+ abi_ulong sigval_ptr;
+} target_sigval_t;
+
+typedef struct target_siginfo {
+ int32_t si_signo; /* signal number */
+ int32_t si_errno; /* errno association */
+ int32_t si_code; /* signal code */
+ int32_t si_pid; /* sending process */
+ int32_t si_uid; /* sender's ruid */
+ int32_t si_status; /* exit value */
+ abi_ulong si_addr; /* faulting instruction */
+ union target_sigval si_value; /* signal value */
+ union {
+ struct {
+ int32_t _trapno; /* machine specific trap code */
+ } _fault;
+
+ /* POSIX.1b timers */
+ struct {
+ int32_t _timerid;
+ int32_t _overrun;
+ } _timer;
+
+ struct {
+ int32_t _mqd;
+ } _mesgp;
+
+ /* SIGPOLL */
+ struct {
+ int _band; /* POLL_IN, POLL_OUT, POLL_MSG */
+ } _poll;
+
+ struct {
+ abi_long __spare1__;
+ int32_t __spare2_[7];
+ } __spare__;
+ } _reason;
+} target_siginfo_t;
+
+struct target_sigevent {
+ abi_int sigev_notify;
+ abi_int sigev_signo;
+ target_sigval_t sigev_value;
+ union {
+ abi_int _threadid;
+
+ /*
+ * The kernel (and thus QEMU) never looks at these;
+ * they're only used as part of the ABI between a
+ * userspace program and libc.
+ */
+ struct {
+ abi_ulong _function;
+ abi_ulong _attribute;
+ } _sigev_thread;
+ abi_ushort _kevent_flags;
+ abi_long _pad[8];
+ } _sigev_un;
+};
+
+#define target_si_signo si_signo
+#define target_si_code si_code
+#define target_si_errno si_errno
+#define target_si_addr si_addr
+
+/* SIGILL si_codes */
+#define TARGET_ILL_ILLOPC (1) /* Illegal opcode. */
+#define TARGET_ILL_ILLOPN (2) /* Illegal operand. */
+#define TARGET_ILL_ILLADR (3) /* Illegal addressing mode. */
+#define TARGET_ILL_ILLTRP (4) /* Illegal trap. */
+#define TARGET_ILL_PRVOPC (5) /* Privileged opcode. */
+#define TARGET_ILL_PRVREG (6) /* Privileged register. */
+#define TARGET_ILL_COPROC (7) /* Coprocessor error. */
+#define TARGET_ILL_BADSTK (8) /* Internal stack error. */
+
+/* SIGSEGV si_codes */
+#define TARGET_SEGV_MAPERR (1) /* address not mapped to object */
+#define TARGET_SEGV_ACCERR (2) /* invalid permissions for mapped object */
+
+/* SIGTRAP si_codes */
+#define TARGET_TRAP_BRKPT (1) /* process beakpoint */
+#define TARGET_TRAP_TRACE (2) /* process trace trap */
+
+/* SIGBUS si_codes */
+#define TARGET_BUS_ADRALN (1)
+#define TARGET_BUS_ADRERR (2)
+#define TARGET_BUS_OBJERR (3)
+
+/* SIGFPE codes */
+#define TARGET_FPE_INTOVF (1) /* Integer overflow. */
+#define TARGET_FPE_INTDIV (2) /* Integer divide by zero. */
+#define TARGET_FPE_FLTDIV (3) /* Floating point divide by zero. */
+#define TARGET_FPE_FLTOVF (4) /* Floating point overflow. */
+#define TARGET_FPE_FLTUND (5) /* Floating point underflow. */
+#define TARGET_FPE_FLTRES (6) /* Floating point inexact result. */
+#define TARGET_FPE_FLTINV (7) /* Invalid floating point operation. */
+#define TARGET_FPE_FLTSUB (8) /* Subscript out of range. */
+
+#endif /* !_TARGET_OS_SIGINFO_H_ */
diff --git a/bsd-user/freebsd/target_os_signal.h b/bsd-user/freebsd/target_os_signal.h
new file mode 100644
index 0000000000..3ed454e086
--- /dev/null
+++ b/bsd-user/freebsd/target_os_signal.h
@@ -0,0 +1,78 @@
+#ifndef _TARGET_OS_SIGNAL_H_
+#define _TARGET_OS_SIGNAL_H_
+
+#include "target_os_siginfo.h"
+#include "target_arch_signal.h"
+
+/* Compare to sys/signal.h */
+#define TARGET_SIGHUP 1 /* hangup */
+#define TARGET_SIGINT 2 /* interrupt */
+#define TARGET_SIGQUIT 3 /* quit */
+#define TARGET_SIGILL 4 /* illegal instruction (not reset when caught) */
+#define TARGET_SIGTRAP 5 /* trace trap (not reset when caught) */
+#define TARGET_SIGABRT 6 /* abort() */
+#define TARGET_SIGIOT SIGABRT /* compatibility */
+#define TARGET_SIGEMT 7 /* EMT instruction */
+#define TARGET_SIGFPE 8 /* floating point exception */
+#define TARGET_SIGKILL 9 /* kill (cannot be caught or ignored) */
+#define TARGET_SIGBUS 10 /* bus error */
+#define TARGET_SIGSEGV 11 /* segmentation violation */
+#define TARGET_SIGSYS 12 /* bad argument to system call */
+#define TARGET_SIGPIPE 13 /* write on a pipe with no one to read it */
+#define TARGET_SIGALRM 14 /* alarm clock */
+#define TARGET_SIGTERM 15 /* software termination signal from kill */
+#define TARGET_SIGURG 16 /* urgent condition on IO channel */
+#define TARGET_SIGSTOP 17 /* sendable stop signal not from tty */
+#define TARGET_SIGTSTP 18 /* stop signal from tty */
+#define TARGET_SIGCONT 19 /* continue a stopped process */
+#define TARGET_SIGCHLD 20 /* to parent on child stop or exit */
+#define TARGET_SIGTTIN 21 /* to readers pgrp upon background tty read */
+#define TARGET_SIGTTOU 22 /* like TTIN for output if(tp->t_local<OSTOP)*/
+#define TARGET_SIGIO 23 /* input/output possible signal */
+#define TARGET_SIGXCPU 24 /* exceeded CPU time limit */
+#define TARGET_SIGXFSZ 25 /* exceeded file size limit */
+#define TARGET_SIGVTALRM 26 /* virtual time alarm */
+#define TARGET_SIGPROF 27 /* profiling time alarm */
+#define TARGET_SIGWINCH 28 /* window size changes */
+#define TARGET_SIGINFO 29 /* information request */
+#define TARGET_SIGUSR1 30 /* user defined signal 1 */
+#define TARGET_SIGUSR2 31 /* user defined signal 2 */
+#define TARGET_SIGTHR 32 /* reserved by thread library */
+#define TARGET_SIGLWP SIGTHR /* compatibility */
+#define TARGET_SIGLIBRT 33 /* reserved by the real-time library */
+#define TARGET_SIGRTMIN 65
+#define TARGET_SIGRTMAX 126
+
+/*
+ * Language spec says we must list exactly one parameter, even though we
+ * actually supply three. Ugh!
+ */
+#define TARGET_SIG_DFL ((abi_long)0) /* default signal handling */
+#define TARGET_SIG_IGN ((abi_long)1) /* ignore signal */
+#define TARGET_SIG_ERR ((abi_long)-1) /* error return from signal */
+
+#define TARGET_SA_ONSTACK 0x0001 /* take signal on signal stack */
+#define TARGET_SA_RESTART 0x0002 /* restart system on signal return */
+#define TARGET_SA_RESETHAND 0x0004 /* reset to SIG_DFL when taking signal */
+#define TARGET_SA_NODEFER 0x0010 /* don't mask the signal we're delivering */
+#define TARGET_SA_NOCLDWAIT 0x0020 /* don't create zombies (assign to pid 1) */
+#define TARGET_SA_USERTRAMP 0x0100 /* do not bounce off kernel's sigtramp */
+#define TARGET_SA_NOCLDSTOP 0x0008 /* do not generate SIGCHLD on child stop */
+#define TARGET_SA_SIGINFO 0x0040 /* generate siginfo_t */
+
+/*
+ * Flags for sigprocmask:
+ */
+#define TARGET_SIG_BLOCK 1 /* block specified signal set */
+#define TARGET_SIG_UNBLOCK 2 /* unblock specified signal set */
+#define TARGET_SIG_SETMASK 3 /* set specified signal set */
+
+#define TARGET_BADSIG SIG_ERR
+
+/*
+ * sigaltstack control
+ */
+#define TARGET_SS_ONSTACK 0x0001 /* take signals on alternate stack */
+#define TARGET_SS_DISABLE 0x0004 /* disable taking signals on alternate stack*/
+
+#endif /* !_TARGET_OS_SIGNAL_H_ */
diff --git a/bsd-user/i386/target_arch_signal.h b/bsd-user/i386/target_arch_signal.h
new file mode 100644
index 0000000000..9812c6b034
--- /dev/null
+++ b/bsd-user/i386/target_arch_signal.h
@@ -0,0 +1,94 @@
+/*
+ * i386 dependent signal definitions
+ *
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program 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 General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, see <http://www.gnu.org/licenses/>.
+ */
+#ifndef TARGET_ARCH_SIGNAL_H
+#define TARGET_ARCH_SIGNAL_H
+
+#include "cpu.h"
+
+/* Size of the signal trampolin code placed on the stack. */
+#define TARGET_SZSIGCODE 0
+
+/* compare to x86/include/_limits.h */
+#define TARGET_MINSIGSTKSZ (512 * 4) /* min sig stack size */
+#define TARGET_SIGSTKSZ (MINSIGSTKSZ + 32768) /* recommended size */
+
+#define TARGET_MC_GET_CLEAR_RET 0x0001
+
+struct target_sigcontext {
+ /* to be added */
+};
+
+typedef struct target_mcontext {
+} target_mcontext_t;
+
+typedef struct target_ucontext {
+ target_sigset_t uc_sigmask;
+ target_mcontext_t uc_mcontext;
+ abi_ulong uc_link;
+ target_stack_t uc_stack;
+ int32_t uc_flags;
+ int32_t __spare__[4];
+} target_ucontext_t;
+
+struct target_sigframe {
+ abi_ulong sf_signum;
+ abi_ulong sf_siginfo; /* code or pointer to sf_si */
+ abi_ulong sf_ucontext; /* points to sf_uc */
+ abi_ulong sf_addr; /* undocumented 4th arg */
+ target_ucontext_t sf_uc; /* = *sf_uncontext */
+ target_siginfo_t sf_si; /* = *sf_siginfo (SA_SIGINFO case)*/
+ uint32_t __spare__[2];
+};
+
+/*
+ * Compare to i386/i386/machdep.c sendsig()
+ * Assumes that target stack frame memory is locked.
+ */
+static inline abi_long set_sigtramp_args(CPUX86State *regs,
+ int sig, struct target_sigframe *frame, abi_ulong frame_addr,
+ struct target_sigaction *ka)
+{
+ /* XXX return -TARGET_EOPNOTSUPP; */
+ return 0;
+}
+
+/* Compare to i386/i386/machdep.c get_mcontext() */
+static inline abi_long get_mcontext(CPUX86State *regs,
+ target_mcontext_t *mcp, int flags)
+{
+ /* XXX */
+ return -TARGET_EOPNOTSUPP;
+}
+
+/* Compare to i386/i386/machdep.c set_mcontext() */
+static inline abi_long set_mcontext(CPUX86State *regs,
+ target_mcontext_t *mcp, int srflag)
+{
+ /* XXX */
+ return -TARGET_EOPNOTSUPP;
+}
+
+static inline abi_long get_ucontext_sigreturn(CPUX86State *regs,
+ abi_ulong target_sf, abi_ulong *target_uc)
+{
+ /* XXX */
+ *target_uc = 0;
+ return -TARGET_EOPNOTSUPP;
+}
+
+#endif /* TARGET_ARCH_SIGNAL_H */
diff --git a/bsd-user/netbsd/target_os_siginfo.h b/bsd-user/netbsd/target_os_siginfo.h
new file mode 100644
index 0000000000..667c19cc7c
--- /dev/null
+++ b/bsd-user/netbsd/target_os_siginfo.h
@@ -0,0 +1,82 @@
+#ifndef _TARGET_OS_SIGINFO_H_
+#define _TARGET_OS_SIGINFO_H_
+
+#define TARGET_NSIG 32 /* counting 0; could be 33 (mask is 1-32) */
+#define TARGET_NSIG_BPW (sizeof(uint32_t) * 8)
+#define TARGET_NSIG_WORDS (TARGET_NSIG / TARGET_NSIG_BPW)
+
+/* this struct defines a stack used during syscall handling */
+typedef struct target_sigaltstack {
+ abi_long ss_sp;
+ abi_ulong ss_size;
+ abi_long ss_flags;
+} target_stack_t;
+
+typedef struct {
+ uint32_t __bits[TARGET_NSIG_WORDS];
+} target_sigset_t
+
+struct target_sigaction {
+ abi_ulong _sa_handler;
+ int32_t sa_flags;
+ target_sigset_t sa_mask;
+};
+
+/* Compare to sys/siginfo.h */
+typedef union target_sigval {
+ int sival_int;
+ abi_ulong sival_ptr;
+} target_sigval_t;
+
+struct target_ksiginfo {
+ int32_t _signo;
+ int32_t _code;
+ int32_t _errno;
+#if TARGET_ABI_BITS == 64
+ int32_t _pad;
+#endif
+ union {
+ struct {
+ int32_t _pid;
+ int32_t _uid;
+ target_sigval_t _value;
+ } _rt;
+
+ struct {
+ int32_t _pid;
+ int32_t _uid;
+ int32_t _struct;
+ /* clock_t _utime; */
+ /* clock_t _stime; */
+ } _child;
+
+ struct {
+ abi_ulong _addr;
+ int32_t _trap;
+ } _fault;
+
+ struct {
+ long _band;
+ int _fd;
+ } _poll;
+ } _reason;
+};
+
+typedef union target_siginfo {
+ int8_t si_pad[128];
+ struct target_ksiginfo _info;
+} target_siginfo_t;
+
+#define target_si_signo _info._signo
+#define target_si_code _info._code
+#define target_si_errno _info._errno
+#define target_si_addr _info._reason._fault._addr
+
+#define TARGET_SEGV_MAPERR 1
+#define TARGET_SEGV_ACCERR 2
+
+#define TARGET_TRAP_BRKPT 1
+#define TARGET_TRAP_TRACE 2
+
+
+#endif /* ! _TARGET_OS_SIGINFO_H_ */
diff --git a/bsd-user/netbsd/target_os_signal.h b/bsd-user/netbsd/target_os_signal.h
new file mode 100644
index 0000000000..a373922f7e
--- /dev/null
+++ b/bsd-user/netbsd/target_os_signal.h
@@ -0,0 +1,69 @@
+#ifndef _TARGET_OS_SIGNAL_H_
+#define _TARGET_OS_SIGNAL_H_
+
+#include "target_os_siginfo.h"
+#include "target_arch_signal.h"
+
+#define TARGET_SIGHUP 1 /* hangup */
+#define TARGET_SIGINT 2 /* interrupt */
+#define TARGET_SIGQUIT 3 /* quit */
+#define TARGET_SIGILL 4 /* illegal instruction (not reset when caught) */
+#define TARGET_SIGTRAP 5 /* trace trap (not reset when caught) */
+#define TARGET_SIGABRT 6 /* abort() */
+#define TARGET_SIGIOT SIGABRT /* compatibility */
+#define TARGET_SIGEMT 7 /* EMT instruction */
+#define TARGET_SIGFPE 8 /* floating point exception */
+#define TARGET_SIGKILL 9 /* kill (cannot be caught or ignored) */
+#define TARGET_SIGBUS 10 /* bus error */
+#define TARGET_SIGSEGV 11 /* segmentation violation */
+#define TARGET_SIGSYS 12 /* bad argument to system call */
+#define TARGET_SIGPIPE 13 /* write on a pipe with no one to read it */
+#define TARGET_SIGALRM 14 /* alarm clock */
+#define TARGET_SIGTERM 15 /* software termination signal from kill */
+#define TARGET_SIGURG 16 /* urgent condition on IO channel */
+#define TARGET_SIGSTOP 17 /* sendable stop signal not from tty */
+#define TARGET_SIGTSTP 18 /* stop signal from tty */
+#define TARGET_SIGCONT 19 /* continue a stopped process */
+#define TARGET_SIGCHLD 20 /* to parent on child stop or exit */
+#define TARGET_SIGTTIN 21 /* to readers pgrp upon background tty read */
+#define TARGET_SIGTTOU 22 /* like TTIN for out if (tp->t_local<OSTOP) */
+#define TARGET_SIGIO 23 /* input/output possible signal */
+#define TARGET_SIGXCPU 24 /* exceeded CPU time limit */
+#define TARGET_SIGXFSZ 25 /* exceeded file size limit */
+#define TARGET_SIGVTALRM 26 /* virtual time alarm */
+#define TARGET_SIGPROF 27 /* profiling time alarm */
+#define TARGET_SIGWINCH 28 /* window size changes */
+#define TARGET_SIGINFO 29 /* information request */
+#define TARGET_SIGUSR1 30 /* user defined signal 1 */
+#define TARGET_SIGUSR2 31 /* user defined signal 2 */
+
+/*
+ * Language spec says we must list exactly one parameter, even though we
+ * actually supply three. Ugh!
+ */
+#define TARGET_SIG_DFL ((void (*)(int))0)
+#define TARGET_SIG_IGN ((void (*)(int))1)
+#define TARGET_SIG_ERR ((void (*)(int))-1)
+
+#define TARGET_SA_ONSTACK 0x0001 /* take signal on signal stack */
+#define TARGET_SA_RESTART 0x0002 /* restart system on signal return */
+#define TARGET_SA_RESETHAND 0x0004 /* reset to SIG_DFL when taking signal */
+#define TARGET_SA_NODEFER 0x0010 /* don't mask the signal we're delivering */
+#define TARGET_SA_NOCLDWAIT 0x0020 /* don't create zombies (assign to pid 1) */
+#define TARGET_SA_USERTRAMP 0x0100 /* do not bounce off kernel's sigtramp */
+#define TARGET_SA_NOCLDSTOP 0x0008 /* do not generate SIGCHLD on child stop */
+#define TARGET_SA_SIGINFO 0x0040 /* generate siginfo_t */
+
+/*
+ * Flags for sigprocmask:
+ */
+#define TARGET_SIG_BLOCK 1 /* block specified signal set */
+#define TARGET_SIG_UNBLOCK 2 /* unblock specified signal set */
+#define TARGET_SIG_SETMASK 3 /* set specified signal set */
+
+#define TARGET_BADSIG SIG_ERR
+
+#define TARGET_SS_ONSTACK 0x0001 /* take signals on alternate stack */
+#define TARGET_SS_DISABLE 0x0004 /* disable taking signals on alternate stack */
+
+#endif /* !_TARGET_OS_SIGNAL_H_ */
diff --git a/bsd-user/openbsd/target_os_siginfo.h b/bsd-user/openbsd/target_os_siginfo.h
new file mode 100644
index 0000000000..baf646a5ab
--- /dev/null
+++ b/bsd-user/openbsd/target_os_siginfo.h
@@ -0,0 +1,82 @@
+#ifndef _TARGET_OS_SIGINFO_H_
+#define _TARGET_OS_SIGINFO_H_
+
+#define TARGET_NSIG 32 /* counting 0; could be 33 (mask is 1-32) */
+#define TARGET_NSIG_BPW (sizeof(uint32_t) * 8)
+#define TARGET_NSIG_WORDS (TARGET_NSIG / TARGET_NSIG_BPW)
+
+/* this struct defines a stack used during syscall handling */
+typedef struct target_sigaltstack {
+ abi_long ss_sp;
+ abi_ulong ss_size;
+ abi_long ss_flags;
+} target_stack_t;
+
+typedef struct {
+ uint32_t __bits[TARGET_NSIG_WORDS];
+} target_sigset_t
+
+struct target_sigaction {
+ abi_ulong _sa_handler;
+ int32_t sa_flags;
+ target_sigset_t sa_mask;
+};
+
+/* Compare to sys/siginfo.h */
+typedef union target_sigval {
+ int sival_int;
+ abi_ulong sival_ptr;
+} target_sigval_t;
+
+struct target_ksiginfo {
+ int32_t _signo;
+ int32_t _code;
+ int32_t _errno;
+#if TARGET_ABI_BITS == 64
+ int32_t _pad;
+#endif
+ union {
+ struct {
+ int32_t _pid;
+ int32_t _uid;
+ target_sigval_t _value;
+ } _rt;
+
+ struct {
+ int32_t _pid;
+ int32_t _uid;
+ int32_t _struct;
+ /* clock_t _utime; */
+ /* clock_t _stime; */
+ } _child;
+
+ struct {
+ abi_ulong _addr;
+ int32_t _trap;
+ } _fault;
+
+ struct {
+ long _band;
+ int _fd;
+ } _poll;
+ } _reason;
+};
+
+typedef union target_siginfo {
+ int8_t si_pad[128];
+ struct target_ksiginfo _info;
+} target_siginfo_t;
+
+#define target_si_signo _info._signo
+#define target_si_code _info._code
+#define target_si_errno _info._errno
+#define target_si_addr _info._reason._fault._addr
+
+#define TARGET_SEGV_MAPERR 1
+#define TARGET_SEGV_ACCERR 2
+
+#define TARGET_TRAP_BRKPT 1
+#define TARGET_TRAP_TRACE 2
+
+
+#endif /* ! _TARGET_OS_SIGINFO_H_ */
diff --git a/bsd-user/openbsd/target_os_signal.h b/bsd-user/openbsd/target_os_signal.h
new file mode 100644
index 0000000000..a373922f7e
--- /dev/null
+++ b/bsd-user/openbsd/target_os_signal.h
@@ -0,0 +1,69 @@
+#ifndef _TARGET_OS_SIGNAL_H_
+#define _TARGET_OS_SIGNAL_H_
+
+#include "target_os_siginfo.h"
+#include "target_arch_signal.h"
+
+#define TARGET_SIGHUP 1 /* hangup */
+#define TARGET_SIGINT 2 /* interrupt */
+#define TARGET_SIGQUIT 3 /* quit */
+#define TARGET_SIGILL 4 /* illegal instruction (not reset when caught) */
+#define TARGET_SIGTRAP 5 /* trace trap (not reset when caught) */
+#define TARGET_SIGABRT 6 /* abort() */
+#define TARGET_SIGIOT SIGABRT /* compatibility */
+#define TARGET_SIGEMT 7 /* EMT instruction */
+#define TARGET_SIGFPE 8 /* floating point exception */
+#define TARGET_SIGKILL 9 /* kill (cannot be caught or ignored) */
+#define TARGET_SIGBUS 10 /* bus error */
+#define TARGET_SIGSEGV 11 /* segmentation violation */
+#define TARGET_SIGSYS 12 /* bad argument to system call */
+#define TARGET_SIGPIPE 13 /* write on a pipe with no one to read it */
+#define TARGET_SIGALRM 14 /* alarm clock */
+#define TARGET_SIGTERM 15 /* software termination signal from kill */
+#define TARGET_SIGURG 16 /* urgent condition on IO channel */
+#define TARGET_SIGSTOP 17 /* sendable stop signal not from tty */
+#define TARGET_SIGTSTP 18 /* stop signal from tty */
+#define TARGET_SIGCONT 19 /* continue a stopped process */
+#define TARGET_SIGCHLD 20 /* to parent on child stop or exit */
+#define TARGET_SIGTTIN 21 /* to readers pgrp upon background tty read */
+#define TARGET_SIGTTOU 22 /* like TTIN for out if (tp->t_local<OSTOP) */
+#define TARGET_SIGIO 23 /* input/output possible signal */
+#define TARGET_SIGXCPU 24 /* exceeded CPU time limit */
+#define TARGET_SIGXFSZ 25 /* exceeded file size limit */
+#define TARGET_SIGVTALRM 26 /* virtual time alarm */
+#define TARGET_SIGPROF 27 /* profiling time alarm */
+#define TARGET_SIGWINCH 28 /* window size changes */
+#define TARGET_SIGINFO 29 /* information request */
+#define TARGET_SIGUSR1 30 /* user defined signal 1 */
+#define TARGET_SIGUSR2 31 /* user defined signal 2 */
+
+/*
+ * Language spec says we must list exactly one parameter, even though we
+ * actually supply three. Ugh!
+ */
+#define TARGET_SIG_DFL ((void (*)(int))0)
+#define TARGET_SIG_IGN ((void (*)(int))1)
+#define TARGET_SIG_ERR ((void (*)(int))-1)
+
+#define TARGET_SA_ONSTACK 0x0001 /* take signal on signal stack */
+#define TARGET_SA_RESTART 0x0002 /* restart system on signal return */
+#define TARGET_SA_RESETHAND 0x0004 /* reset to SIG_DFL when taking signal */
+#define TARGET_SA_NODEFER 0x0010 /* don't mask the signal we're delivering */
+#define TARGET_SA_NOCLDWAIT 0x0020 /* don't create zombies (assign to pid 1) */
+#define TARGET_SA_USERTRAMP 0x0100 /* do not bounce off kernel's sigtramp */
+#define TARGET_SA_NOCLDSTOP 0x0008 /* do not generate SIGCHLD on child stop */
+#define TARGET_SA_SIGINFO 0x0040 /* generate siginfo_t */
+
+/*
+ * Flags for sigprocmask:
+ */
+#define TARGET_SIG_BLOCK 1 /* block specified signal set */
+#define TARGET_SIG_UNBLOCK 2 /* unblock specified signal set */
+#define TARGET_SIG_SETMASK 3 /* set specified signal set */
+
+#define TARGET_BADSIG SIG_ERR
+
+#define TARGET_SS_ONSTACK 0x0001 /* take signals on alternate stack */
+#define TARGET_SS_DISABLE 0x0004 /* disable taking signals on alternate stack */
+
+#endif /* !_TARGET_OS_SIGNAL_H_ */
diff --git a/bsd-user/qemu.h b/bsd-user/qemu.h
index 21efa7d777..3e3bd96cff 100644
--- a/bsd-user/qemu.h
+++ b/bsd-user/qemu.h
@@ -42,6 +42,7 @@ extern enum BSDType bsd_type;
#include "syscall_defs.h"
#include "target_syscall.h"
#include "target_os_vmparam.h"
+#include "target_os_signal.h"
#include "exec/gdbstub.h"
/*
diff --git a/bsd-user/syscall_defs.h b/bsd-user/syscall_defs.h
index 207ddeecbf..eb7d1da9b0 100644
--- a/bsd-user/syscall_defs.h
+++ b/bsd-user/syscall_defs.h
@@ -37,8 +37,6 @@
* @(#)signal.h 8.2 (Berkeley) 1/21/94
*/
-#define TARGET_NSIG 32 /* counting 0; could be 33 (mask is 1-32) */
-
#define TARGET_SIGHUP 1 /* hangup */
#define TARGET_SIGINT 2 /* interrupt */
#define TARGET_SIGQUIT 3 /* quit */
@@ -72,14 +70,6 @@
#define TARGET_SIGUSR1 30 /* user defined signal 1 */
#define TARGET_SIGUSR2 31 /* user defined signal 2 */
-/*
- * Language spec says we must list exactly one parameter, even though we
- * actually supply three. Ugh!
- */
-#define TARGET_SIG_DFL (void (*)(int))0
-#define TARGET_SIG_IGN (void (*)(int))1
-#define TARGET_SIG_ERR (void (*)(int))-1
-
#define TARGET_SA_ONSTACK 0x0001 /* take signal on signal stack */
#define TARGET_SA_RESTART 0x0002 /* restart system on signal return */
#define TARGET_SA_RESETHAND 0x0004 /* reset to SIG_DFL when taking signal */
diff --git a/bsd-user/x86_64/target_arch_signal.h b/bsd-user/x86_64/target_arch_signal.h
new file mode 100644
index 0000000000..4c1ff0e5ba
--- /dev/null
+++ b/bsd-user/x86_64/target_arch_signal.h
@@ -0,0 +1,94 @@
+/*
+ * x86_64 signal definitions
+ *
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program 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 General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, see <http://www.gnu.org/licenses/>.
+ */
+#ifndef _TARGET_ARCH_SIGNAL_H_
+#define _TARGET_ARCH_SIGNAL_H_
+
+#include "cpu.h"
+
+/* Size of the signal trampolin code placed on the stack. */
+#define TARGET_SZSIGCODE 0
+
+/* compare to x86/include/_limits.h */
+#define TARGET_MINSIGSTKSZ (512 * 4) /* min sig stack size */
+#define TARGET_SIGSTKSZ (MINSIGSTKSZ + 32768) /* recommended size */
+
+#define TARGET_MC_GET_CLEAR_RET 0x0001
+
+struct target_sigcontext {
+ /* to be added */
+};
+
+typedef struct target_mcontext {
+} target_mcontext_t;
+
+typedef struct target_ucontext {
+ target_sigset_t uc_sigmask;
+ target_mcontext_t uc_mcontext;
+ abi_ulong uc_link;
+ target_stack_t uc_stack;
+ int32_t uc_flags;
+ int32_t __spare__[4];
+} target_ucontext_t;
+
+struct target_sigframe {
+ abi_ulong sf_signum;
+ abi_ulong sf_siginfo; /* code or pointer to sf_si */
+ abi_ulong sf_ucontext; /* points to sf_uc */
+ abi_ulong sf_addr; /* undocumented 4th arg */
+ target_ucontext_t sf_uc; /* = *sf_uncontext */
+ target_siginfo_t sf_si; /* = *sf_siginfo (SA_SIGINFO case)*/
+ uint32_t __spare__[2];
+};
+
+/*
+ * Compare to amd64/amd64/machdep.c sendsig()
+ * Assumes that target stack frame memory is locked.
+ */
+static inline abi_long set_sigtramp_args(CPUX86State *regs,
+ int sig, struct target_sigframe *frame, abi_ulong frame_addr,
+ struct target_sigaction *ka)
+{
+ /* XXX return -TARGET_EOPNOTSUPP; */
+ return 0;
+}
+
+/* Compare to amd64/amd64/machdep.c get_mcontext() */
+static inline abi_long get_mcontext(CPUX86State *regs,
+ target_mcontext_t *mcp, int flags)
+{
+ /* XXX */
+ return -TARGET_EOPNOTSUPP;
+}
+
+/* Compare to amd64/amd64/machdep.c set_mcontext() */
+static inline abi_long set_mcontext(CPUX86State *regs,
+ target_mcontext_t *mcp, int srflag)
+{
+ /* XXX */
+ return -TARGET_EOPNOTSUPP;
+}
+
+static inline abi_long get_ucontext_sigreturn(CPUX86State *regs,
+ abi_ulong target_sf, abi_ulong *target_uc)
+{
+ /* XXX */
+ *target_uc = 0;
+ return -TARGET_EOPNOTSUPP;
+}
+
+#endif /* !TARGET_ARCH_SIGNAL_H_ */
--
2.32.0
next prev parent reply other threads:[~2021-09-07 22:21 UTC|newest]
Thread overview: 50+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-09-07 21:52 [PULL 00/42] bsd-user updates to run hello world imp
2021-09-07 21:52 ` [PULL 01/42] bsd-user: remove sparc and sparc64 imp
2021-09-07 21:52 ` [PULL 02/42] bsd-user: add copyright header to elfload.c imp
2021-09-07 21:52 ` [PULL 03/42] bsd-user: Add Stacey's copyright to main.c imp
2021-09-07 21:52 ` [PULL 04/42] bsd-user: add license to bsdload.c imp
2021-09-07 21:52 ` [PULL 05/42] bsd-user: style nits: bsdload.c whitespace to qemu standard imp
2021-09-07 21:52 ` [PULL 06/42] bsd-user: Remove all non-x86 code from elfload.c imp
2021-09-07 21:52 ` [PULL 07/42] bsd-user: move arch specific defines out of elfload.c imp
2021-09-07 21:52 ` [PULL 08/42] bsd-user: pass the bsd_param into loader_exec imp
2021-09-07 21:52 ` [PULL 09/42] bsd-user: Fix calculation of size to allocate imp
2021-09-07 21:53 ` [PULL 10/42] bsd-user: implement path searching imp
2021-09-07 21:53 ` [PULL 11/42] bsd-user: Eliminate elf personality imp
2021-09-07 21:53 ` [PULL 12/42] bsd-user: remove a.out support imp
2021-09-07 21:53 ` [PULL 13/42] bsd-user: TARGET_NGROUPS unused in this file, remove imp
2021-09-07 21:53 ` [PULL 14/42] bsd-user: elfload: simplify bswap a bit imp
2021-09-07 21:53 ` [PULL 15/42] bsd-user: assume pthreads and support of __thread imp
2021-09-07 21:53 ` [PULL 16/42] bsd-user: add host-os.h imp
2021-09-07 21:53 ` [PULL 17/42] bsd-user: Include host-os.h from main imp
2021-09-07 21:53 ` [PULL 18/42] bsd-user: save the path to the qemu emulator imp
2021-09-07 21:53 ` [PULL 19/42] bsd-user: start to move target CPU functions to target_arch* imp
2021-09-07 21:53 ` [PULL 20/42] bsd-user: Move per-cpu code into target_arch_cpu.h imp
2021-09-07 21:53 ` [PULL 21/42] bsd-user: pull in target_arch_thread.h update target_arch_elf.h imp
2021-09-07 21:53 ` [PULL 22/42] bsd-user: Include more things in qemu.h imp
2021-09-07 21:53 ` [PULL 23/42] bsd-user: define max args in terms of pages imp
2021-09-07 21:53 ` [PULL 24/42] bsd-user: Create target specific vmparam.h imp
2021-09-07 21:53 ` [PULL 25/42] bsd-user: Add system independent stack, data and text limiting imp
2021-09-07 21:53 ` imp [this message]
2021-09-07 21:53 ` [PULL 27/42] bsd-user: Implement --seed and initialize random state imp
2021-09-07 21:53 ` [PULL 28/42] bsd-user: Move stack initializtion into a per-os file imp
2021-09-07 21:53 ` [PULL 29/42] bsd-user: Add architecture specific signal tramp code imp
2021-09-07 21:53 ` [PULL 30/42] bsd-user: elf cleanup imp
2021-09-07 21:53 ` [PULL 31/42] bsd-user: Remove dead #ifdefs from elfload.c imp
2021-09-07 21:53 ` [PULL 32/42] bsd-user: Rewrite target system call definintion glue imp
2021-09-07 21:53 ` [PULL 33/42] bsd-user: update debugging in mmap.c imp
2021-09-07 21:53 ` [PULL 34/42] bsd-user: Add target_arch_reg to describe a target's register set imp
2021-09-07 21:53 ` [PULL 35/42] bsd-user: Add target_os_user.h to capture the user/kernel structures imp
2021-09-07 21:53 ` [PULL 36/42] bsd-user: add stubbed out core dump support imp
2021-09-07 21:53 ` [PULL 37/42] bsd-user: elfload.c style catch up patch imp
2021-09-07 21:53 ` [PULL 38/42] bsd-user: Refactor load_elf_sections and is_target_elf_binary imp
2021-09-07 21:53 ` [PULL 39/42] bsd-user: move gemu_log to later in the file imp
2021-09-07 21:53 ` [PULL 40/42] bsd-user: Implement interlock for atomic operations imp
2021-09-07 21:53 ` [PULL 41/42] bsd-user: Add '-0 argv0' option to bsd-user/main.c imp
2021-09-07 21:53 ` [PULL 42/42] bsd-user: Update mapping to handle reserved and starting conditions imp
2021-09-09 15:00 ` [PULL 00/42] bsd-user updates to run hello world Peter Maydell
2021-09-09 15:12 ` Warner Losh
2021-09-09 15:21 ` Daniel P. Berrangé
2021-09-09 16:31 ` Philippe Mathieu-Daudé
2021-09-10 20:35 ` Warner Losh
2021-09-09 16:29 ` Philippe Mathieu-Daudé
2021-09-10 20:31 ` Warner Losh
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