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signals_osdep.h
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/**************************************************************************/
/* */
/* OCaml */
/* */
/* Xavier Leroy, projet Cristal, INRIA Rocquencourt */
/* */
/* Copyright 2004 Institut National de Recherche en Informatique et */
/* en Automatique. */
/* */
/* All rights reserved. This file is distributed under the terms of */
/* the GNU Lesser General Public License version 2.1, with the */
/* special exception on linking described in the file LICENSE. */
/* */
/**************************************************************************/
/* Processor- and OS-dependent signal interface */
/****************** AMD64, Linux */
#if defined(TARGET_amd64) && defined (SYS_linux)
#define DECLARE_SIGNAL_HANDLER(name) \
static void name(int sig, siginfo_t * info, ucontext_t * context)
#define SET_SIGACT(sigact,name) \
sigact.sa_sigaction = (void (*)(int,siginfo_t *,void *)) (name); \
sigact.sa_flags = SA_SIGINFO
typedef greg_t context_reg;
#define CONTEXT_C_ARG_1 (context->uc_mcontext.gregs[REG_RDI])
#define CONTEXT_PC (context->uc_mcontext.gregs[REG_RIP])
#define CONTEXT_SP (context->uc_mcontext.gregs[REG_RSP])
#define CONTEXT_YOUNG_PTR (context->uc_mcontext.gregs[REG_R15])
#define CONTEXT_FAULTING_ADDRESS ((char *)context->uc_mcontext.gregs[REG_CR2])
/****************** AMD64, MacOSX */
#elif defined(TARGET_amd64) && defined (SYS_macosx)
#define DECLARE_SIGNAL_HANDLER(name) \
static void name(int sig, siginfo_t * info, void * context)
#define SET_SIGACT(sigact,name) \
sigact.sa_sigaction = (name); \
sigact.sa_flags = SA_SIGINFO | SA_64REGSET
#include <sys/ucontext.h>
#include <AvailabilityMacros.h>
#if (!defined(MAC_OS_X_VERSION_10_5) \
|| MAC_OS_X_VERSION_MIN_REQUIRED < MAC_OS_X_VERSION_10_5) \
&& !defined(__IPHONE_OS_VERSION_MIN_REQUIRED)
#define CONTEXT_REG(r) r
#else
#define CONTEXT_REG(r) __##r
#endif
typedef unsigned long long context_reg;
#define CONTEXT_STATE (((ucontext_t *)context)->uc_mcontext->CONTEXT_REG(ss))
#define CONTEXT_C_ARG_1 (CONTEXT_STATE.CONTEXT_REG(rdi))
#define CONTEXT_PC (CONTEXT_STATE.CONTEXT_REG(rip))
#define CONTEXT_YOUNG_PTR (CONTEXT_STATE.CONTEXT_REG(r15))
#define CONTEXT_SP (CONTEXT_STATE.CONTEXT_REG(rsp))
#define CONTEXT_FAULTING_ADDRESS ((char *) info->si_addr)
#define RETURN_AFTER_STACK_OVERFLOW
/****************** AMD64, Solaris x86 */
#elif defined(TARGET_amd64) && defined (SYS_solaris)
#include <ucontext.h>
#define DECLARE_SIGNAL_HANDLER(name) \
static void name(int sig, siginfo_t * info, ucontext_t * context)
#define SET_SIGACT(sigact,name) \
sigact.sa_sigaction = (void (*)(int,siginfo_t *,void *)) (name); \
sigact.sa_flags = SA_SIGINFO
typedef greg_t context_reg;
#define CONTEXT_PC (context->uc_mcontext.gregs[REG_RIP])
#define CONTEXT_C_ARG_1 (context->uc_mcontext.gregs[REG_RDI])
#define CONTEXT_SP (context->uc_mcontext.gregs[REG_RSP])
#define CONTEXT_YOUNG_PTR (context->uc_mcontext.gregs[REG_R15])
#define CONTEXT_FAULTING_ADDRESS ((char *) info->si_addr)
/****************** AMD64, OpenBSD */
#elif defined(TARGET_amd64) && defined (SYS_openbsd)
#define DECLARE_SIGNAL_HANDLER(name) \
static void name(int sig, siginfo_t * info, struct sigcontext * context)
#define SET_SIGACT(sigact,name) \
sigact.sa_sigaction = (void (*)(int,siginfo_t *,void *)) (name); \
sigact.sa_flags = SA_SIGINFO
#define CONTEXT_PC (context->sc_rip)
#define CONTEXT_C_ARG_1 (context->sc_rdi)
#define CONTEXT_SP (context->sc_rsp)
#define CONTEXT_YOUNG_PTR (context->sc_r15)
#define CONTEXT_FAULTING_ADDRESS ((char *) info->si_addr)
/****************** AMD64, NetBSD */
#elif defined(TARGET_amd64) && defined (SYS_netbsd)
#include <ucontext.h>
#define DECLARE_SIGNAL_HANDLER(name) \
static void name(int sig, siginfo_t * info, ucontext_t * context)
#define SET_SIGACT(sigact,name) \
sigact.sa_sigaction = (void (*)(int,siginfo_t *,void *)) (name); \
sigact.sa_flags = SA_SIGINFO
#define CONTEXT_PC (_UC_MACHINE_PC(context))
#define CONTEXT_C_ARG_1 (context->uc_mcontext.gregs[REG_RDI])
#define CONTEXT_SP (_UC_MACHINE_SP(context))
#define CONTEXT_YOUNG_PTR (context->uc_mcontext.gregs[REG_R15])
#define CONTEXT_FAULTING_ADDRESS ((char *) info->si_addr)
/****************** ARM, Linux */
#elif defined(TARGET_arm) && (defined(SYS_linux_eabi) \
|| defined(SYS_linux_eabihf))
#include <sys/ucontext.h>
#define DECLARE_SIGNAL_HANDLER(name) \
static void name(int sig, siginfo_t * info, ucontext_t * context)
#define SET_SIGACT(sigact,name) \
sigact.sa_sigaction = (void (*)(int,siginfo_t *,void *)) (name); \
sigact.sa_flags = SA_SIGINFO
typedef unsigned long context_reg;
#define CONTEXT_PC (context->uc_mcontext.arm_pc)
#define CONTEXT_SP (context->uc_mcontext.arm_sp)
#define CONTEXT_EXCEPTION_PTR (context->uc_mcontext.arm_r8)
#define CONTEXT_YOUNG_PTR (context->uc_mcontext.arm_r10)
#define CONTEXT_FAULTING_ADDRESS ((char *) context->uc_mcontext.fault_address)
/****************** ARM64, Linux */
#elif defined(TARGET_arm64) && defined(SYS_linux)
#include <sys/ucontext.h>
#define DECLARE_SIGNAL_HANDLER(name) \
static void name(int sig, siginfo_t * info, ucontext_t * context)
#define SET_SIGACT(sigact,name) \
sigact.sa_sigaction = (void (*)(int,siginfo_t *,void *)) (name); \
sigact.sa_flags = SA_SIGINFO
typedef unsigned long context_reg;
#define CONTEXT_PC (context->uc_mcontext.pc)
#define CONTEXT_SP (context->uc_mcontext.sp)
#define CONTEXT_C_ARG_1 (context->uc_mcontext.regs[0])
#define CONTEXT_EXCEPTION_POINTER (context->uc_mcontext.regs[26])
#define CONTEXT_YOUNG_PTR (context->uc_mcontext.regs[27])
#define CONTEXT_FAULTING_ADDRESS ((char *) context->uc_mcontext.fault_address)
#define RETURN_AFTER_STACK_OVERFLOW
/****************** ARM64, MacOSX */
#elif defined(TARGET_arm64) && defined (SYS_macosx)
#include <sys/ucontext.h>
#define DECLARE_SIGNAL_HANDLER(name) \
static void name(int sig, siginfo_t * info, void * context)
#define SET_SIGACT(sigact,name) \
sigact.sa_sigaction = (name); \
sigact.sa_flags = SA_SIGINFO
typedef unsigned long long context_reg;
#define CONTEXT_STATE (((ucontext_t *)context)->uc_mcontext->__ss)
#define CONTEXT_PC (CONTEXT_STATE.__pc)
#define CONTEXT_SP (CONTEXT_STATE.__sp)
#define CONTEXT_C_ARG_1 (CONTEXT_STATE.__x[0])
#define CONTEXT_EXCEPTION_POINTER (CONTEXT_STATE.__x[26])
#define CONTEXT_YOUNG_PTR (CONTEXT_STATE.__x[27])
#define CONTEXT_FAULTING_ADDRESS ((char *) info->si_addr)
#define RETURN_AFTER_STACK_OVERFLOW
/****************** ARM64, FreeBSD */
#elif defined(TARGET_arm64) && defined(SYS_freebsd)
#include <sys/ucontext.h>
#define DECLARE_SIGNAL_HANDLER(name) \
static void name(int sig, siginfo_t * info, ucontext_t * context)
#define SET_SIGACT(sigact,name) \
sigact.sa_sigaction = (void (*)(int,siginfo_t *,void *)) (name); \
sigact.sa_flags = SA_SIGINFO
typedef unsigned long context_reg;
#define CONTEXT_PC (context->uc_mcontext.mc_gpregs.gp_elr)
#define CONTEXT_SP (context->uc_mcontext.mc_gpregs.gp_sp)
#define CONTEXT_EXCEPTION_POINTER (context->uc_mcontext.mc_gpregs.gp_x[26])
#define CONTEXT_YOUNG_PTR (context->uc_mcontext.mc_gpregs.gp_x[27])
#define CONTEXT_FAULTING_ADDRESS ((char *) info->si_addr)
/****************** I386, Linux */
#elif defined(TARGET_i386) && defined(SYS_linux_elf)
#define DECLARE_SIGNAL_HANDLER(name) \
static void name(int sig, siginfo_t * info, ucontext_t * context)
#define SET_SIGACT(sigact,name) \
sigact.sa_sigaction = (void (*)(int,siginfo_t *,void *)) (name); \
sigact.sa_flags = SA_SIGINFO
typedef greg_t context_reg;
#define CONTEXT_PC (context->uc_mcontext.gregs[REG_EIP])
#define CONTEXT_SP (context->uc_mcontext.gregs[REG_ESP])
#define CONTEXT_FAULTING_ADDRESS ((char *)context->uc_mcontext.cr2)
/****************** I386, BSD_ELF */
#elif defined(TARGET_i386) && defined(SYS_bsd_elf)
#if defined (__NetBSD__)
#include <ucontext.h>
#define DECLARE_SIGNAL_HANDLER(name) \
static void name(int sig, siginfo_t * info, ucontext_t * context)
#else
#define DECLARE_SIGNAL_HANDLER(name) \
static void name(int sig, siginfo_t * info, struct sigcontext * context)
#endif
#define SET_SIGACT(sigact,name) \
sigact.sa_sigaction = (void (*)(int,siginfo_t *,void *)) (name); \
sigact.sa_flags = SA_SIGINFO
#if defined (__NetBSD__)
#define CONTEXT_PC (_UC_MACHINE_PC(context))
#define CONTEXT_SP (_UC_MACHINE_SP(context))
#else
#define CONTEXT_PC (context->sc_eip)
#define CONTEXT_SP (context->sc_esp)
#endif
#define CONTEXT_FAULTING_ADDRESS ((char *) info->si_addr)
/****************** I386, BSD */
#elif defined(TARGET_i386) && defined(SYS_bsd)
#define DECLARE_SIGNAL_HANDLER(name) \
static void name(int sig, siginfo_t * info, void * context)
#define SET_SIGACT(sigact,name) \
sigact.sa_sigaction = (name); \
sigact.sa_flags = SA_SIGINFO
#define CONTEXT_FAULTING_ADDRESS ((char *) info->si_addr)
/****************** I386, MacOS X */
#elif defined(TARGET_i386) && defined(SYS_macosx)
#define DECLARE_SIGNAL_HANDLER(name) \
static void name(int sig, siginfo_t * info, void * context)
#define SET_SIGACT(sigact,name) \
sigact.sa_sigaction = (name); \
sigact.sa_flags = SA_SIGINFO
#include <sys/ucontext.h>
#include <AvailabilityMacros.h>
#if (!defined(MAC_OS_X_VERSION_10_5) \
|| MAC_OS_X_VERSION_MIN_REQUIRED < MAC_OS_X_VERSION_10_5) \
&& !defined(__IPHONE_OS_VERSION_MIN_REQUIRED)
#define CONTEXT_REG(r) r
#else
#define CONTEXT_REG(r) __##r
#endif
#define CONTEXT_STATE (((ucontext_t *)context)->uc_mcontext->CONTEXT_REG(ss))
#define CONTEXT_PC (CONTEXT_STATE.CONTEXT_REG(eip))
#define CONTEXT_SP (CONTEXT_STATE.CONTEXT_REG(esp))
#define CONTEXT_FAULTING_ADDRESS ((char *) info->si_addr)
/****************** I386, Solaris x86 */
#elif defined(TARGET_i386) && defined(SYS_solaris)
#define DECLARE_SIGNAL_HANDLER(name) \
static void name(int sig, siginfo_t * info, void * context)
#define SET_SIGACT(sigact,name) \
sigact.sa_sigaction = (name); \
sigact.sa_flags = SA_SIGINFO
#define CONTEXT_FAULTING_ADDRESS ((char *) info->si_addr)
/****************** PowerPC, MacOS X */
#elif defined(TARGET_power) && defined(SYS_rhapsody)
#define DECLARE_SIGNAL_HANDLER(name) \
static void name(int sig, siginfo_t * info, void * context)
#include <sys/ucontext.h>
#include <AvailabilityMacros.h>
#ifdef __LP64__
#define SET_SIGACT(sigact,name) \
sigact.sa_sigaction = (name); \
sigact.sa_flags = SA_SIGINFO | SA_64REGSET
typedef unsigned long long context_reg;
#define CONTEXT_MCONTEXT (((ucontext64_t *)context)->uc_mcontext64)
#else
#define SET_SIGACT(sigact,name) \
sigact.sa_sigaction = (name); \
sigact.sa_flags = SA_SIGINFO
typedef unsigned long context_reg;
#define CONTEXT_MCONTEXT (((ucontext_t *)context)->uc_mcontext)
#endif
#if !defined(MAC_OS_X_VERSION_10_5) \
|| MAC_OS_X_VERSION_MIN_REQUIRED < MAC_OS_X_VERSION_10_5
#define CONTEXT_REG(r) r
#else
#define CONTEXT_REG(r) __##r
#endif
#define CONTEXT_STATE (CONTEXT_MCONTEXT->CONTEXT_REG(ss))
#define CONTEXT_PC (CONTEXT_STATE.CONTEXT_REG(srr0))
#define CONTEXT_EXCEPTION_POINTER (CONTEXT_STATE.CONTEXT_REG(r29))
#define CONTEXT_YOUNG_PTR (CONTEXT_STATE.CONTEXT_REG(r31))
#define CONTEXT_SP (CONTEXT_STATE.CONTEXT_REG(r1))
#define CONTEXT_FAULTING_ADDRESS ((char *) info->si_addr)
/****************** PowerPC 32 bits, ELF (Linux) */
#elif defined(TARGET_power) && defined(MODEL_ppc) && defined(SYS_elf)
#define DECLARE_SIGNAL_HANDLER(name) \
static void name(int sig, struct sigcontext * context)
#define SET_SIGACT(sigact,name) \
sigact.sa_handler = (void (*)(int)) (name); \
sigact.sa_flags = 0
typedef unsigned long context_reg;
#define CONTEXT_PC (context->regs->nip)
#define CONTEXT_EXCEPTION_POINTER (context->regs->gpr[29])
#define CONTEXT_YOUNG_PTR (context->regs->gpr[31])
#define CONTEXT_SP (context->regs->gpr[1])
/****************** PowerPC 64 bits, ELF (Linux) */
#elif defined(TARGET_power) && defined(SYS_elf)
#define DECLARE_SIGNAL_HANDLER(name) \
static void name(int sig, siginfo_t * info, ucontext_t * context)
#define SET_SIGACT(sigact,name) \
sigact.sa_sigaction = (void (*)(int,siginfo_t *,void *)) (name); \
sigact.sa_flags = SA_SIGINFO
typedef unsigned long context_reg;
#define CONTEXT_PC (context->uc_mcontext.gp_regs[32])
#define CONTEXT_EXCEPTION_POINTER (context->uc_mcontext.gp_regs[29])
#define CONTEXT_YOUNG_PTR (context->uc_mcontext.gp_regs[31])
#define CONTEXT_SP (context->uc_mcontext.gp_regs[1])
#define CONTEXT_FAULTING_ADDRESS ((char *) info->si_addr)
/****************** PowerPC, NetBSD */
#elif defined(TARGET_power) && defined (SYS_netbsd)
#include <ucontext.h>
#define DECLARE_SIGNAL_HANDLER(name) \
static void name(int sig, siginfo_t * info, ucontext_t * context)
#define SET_SIGACT(sigact,name) \
sigact.sa_sigaction = (void (*)(int,siginfo_t *,void *)) (name); \
sigact.sa_flags = SA_SIGINFO
typedef long context_reg;
#define CONTEXT_PC (_UC_MACHINE_PC(context))
#define CONTEXT_EXCEPTION_POINTER (context->uc_mcontext.__gregs[_REG_R29])
#define CONTEXT_YOUNG_PTR (context->uc_mcontext.__gregs[_REG_R31])
#define CONTEXT_SP (_UC_MACHINE_SP(context))
#define CONTEXT_FAULTING_ADDRESS ((char *) info->si_addr)
/****************** PowerPC, other BSDs */
#elif defined(TARGET_power) && \
(defined(SYS_bsd) || defined(SYS_bsd_elf))
#define DECLARE_SIGNAL_HANDLER(name) \
static void name(int sig, int code, struct sigcontext * context)
#define SET_SIGACT(sigact,name) \
sigact.sa_handler = (void (*)(int)) (name); \
sigact.sa_flags = 0
typedef unsigned long context_reg;
#define CONTEXT_PC (context->sc_frame.srr0)
#define CONTEXT_EXCEPTION_POINTER (context->sc_frame.fixreg[29])
#define CONTEXT_YOUNG_PTR (context->sc_frame.fixreg[31])
#define CONTEXT_SP (context->sc_frame.fixreg[1])
/****************** s390x, ELF (Linux) */
#elif defined(TARGET_s390x) && defined(SYS_elf)
#define DECLARE_SIGNAL_HANDLER(name) \
static void name(int sig, siginfo_t * info, ucontext_t * context)
#define SET_SIGACT(sigact,name) \
sigact.sa_sigaction = (void (*)(int,siginfo_t *,void *)) (name); \
sigact.sa_flags = SA_SIGINFO
typedef unsigned long context_reg;
#define CONTEXT_PC (context->uc_mcontext.psw.addr)
#define CONTEXT_EXCEPTION_POINTER (context->uc_mcontext.gregs[13])
#define CONTEXT_YOUNG_PTR (context->uc_mcontext.gregs[11])
#define CONTEXT_SP (context->uc_mcontext.gregs[15])
#define CONTEXT_FAULTING_ADDRESS ((char *) info->si_addr)
/******************** Default */
#else
#define DECLARE_SIGNAL_HANDLER(name) \
static void name(int sig)
#define SET_SIGACT(sigact,name) \
sigact.sa_handler = (name); \
sigact.sa_flags = 0
#endif