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gcc/libgo/sysinfo.c

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libgo: separate mksysinfo inputs into separate Makefile targets This is a step toward a version of mksysinfo that generates information for the runtime package. This will be used to generate the runtime_sysinfo.go file, which is currently directly generated by a Makefile target. Reviewed-on: https://go-review.googlesource.com/29683 From-SVN: r240560
2016-09-28 05:32:50 +08:00
/* sysinfo.c -- input for mksysinfo.sh
Copyright 2009 The Go Authors. All rights reserved.
Use of this source code is governed by a BSD-style
license that can be found in the LICENSE file. */
/* This file is passed to GCC with the -fdump-go-spec option to
generate a Go version of the system information. */
#include "config.h"
runtime: copy netpoll code from Go 1.7 runtime Reviewed-on: https://go-review.googlesource.com/31325 From-SVN: r241307
2016-10-18 22:38:29 +08:00
#include <stddef.h>
libgo: separate mksysinfo inputs into separate Makefile targets This is a step toward a version of mksysinfo that generates information for the runtime package. This will be used to generate the runtime_sysinfo.go file, which is currently directly generated by a Makefile target. Reviewed-on: https://go-review.googlesource.com/29683 From-SVN: r240560
2016-09-28 05:32:50 +08:00
#include <sys/types.h>
#include <dirent.h>
#include <errno.h>
#include <fcntl.h>
#include <ucontext.h>
#include <netinet/in.h>
/* <netinet/tcp.h> needs u_char/u_short, but <sys/bsd_types> is only
included by <netinet/in.h> if _SGIAPI (i.e. _SGI_SOURCE
&& !_XOPEN_SOURCE.
<sys/termios.h> only defines TIOCNOTTY if !_XOPEN_SOURCE, while
<sys/ttold.h> does so unconditionally. */
#ifdef __sgi__
#include <sys/bsd_types.h>
#include <sys/ttold.h>
#endif
#include <netinet/tcp.h>
#if defined(HAVE_NETINET_IN_SYSTM_H)
#include <netinet/in_systm.h>
#endif
#if defined(HAVE_NETINET_IP_H)
#include <netinet/ip.h>
#endif
#if defined(HAVE_NETINET_IP_MROUTE_H)
#include <netinet/ip_mroute.h>
#endif
#if defined(HAVE_NETINET_IF_ETHER_H)
#include <netinet/if_ether.h>
#endif
#include <signal.h>
#include <sys/ioctl.h>
#include <termios.h>
#if defined(HAVE_SYSCALL_H)
#include <syscall.h>
#endif
#if defined(HAVE_SYS_SYSCALL_H)
#include <sys/syscall.h>
#endif
#if defined(HAVE_SYS_EPOLL_H)
#include <sys/epoll.h>
#endif
runtime: copy netpoll code from Go 1.7 runtime Reviewed-on: https://go-review.googlesource.com/31325 From-SVN: r241307
2016-10-18 22:38:29 +08:00
#if defined(HAVE_SYS_EVENT_H)
#include <sys/event.h>
#endif
libgo: separate mksysinfo inputs into separate Makefile targets This is a step toward a version of mksysinfo that generates information for the runtime package. This will be used to generate the runtime_sysinfo.go file, which is currently directly generated by a Makefile target. Reviewed-on: https://go-review.googlesource.com/29683 From-SVN: r240560
2016-09-28 05:32:50 +08:00
#if defined(HAVE_SYS_FILE_H)
#include <sys/file.h>
#endif
#if defined(HAVE_SYS_MMAN_H)
#include <sys/mman.h>
#endif
#if defined(HAVE_SYS_PRCTL_H)
#include <sys/prctl.h>
#endif
#if defined(HAVE_SYS_PTRACE_H)
#include <sys/ptrace.h>
#endif
#include <sys/resource.h>
#include <sys/uio.h>
#include <sys/socket.h>
#include <sys/stat.h>
#include <sys/time.h>
#include <sys/times.h>
#include <sys/wait.h>
#include <sys/un.h>
#if defined(HAVE_SYS_USER_H)
#include <sys/user.h>
#endif
#if defined(HAVE_SYS_UTSNAME_H)
#include <sys/utsname.h>
#endif
#if defined(HAVE_SYS_SELECT_H)
#include <sys/select.h>
#endif
#include <time.h>
#include <unistd.h>
#include <netdb.h>
#include <pwd.h>
#include <grp.h>
#if defined(HAVE_LINUX_FILTER_H)
#include <linux/filter.h>
#endif
#if defined(HAVE_LINUX_IF_ADDR_H)
#include <linux/if_addr.h>
#endif
#if defined(HAVE_LINUX_IF_ETHER_H)
#include <linux/if_ether.h>
#endif
#if defined(HAVE_LINUX_IF_TUN_H)
#include <linux/if_tun.h>
#endif
#if defined(HAVE_LINUX_NETLINK_H)
#include <linux/netlink.h>
#endif
libgo, syscall: fix ptrace implementation on MIPS On MIPS, the correct structure for PtraceRegs is 'struct pt_regs' which is declared in linux/ptrace.h. Previously no PtraceRegs structure was created on MIPS because 'struct user_regs_struct' doesn't exist there. Fallback to using pt_regs when the PtraceRegs structure is generated in mksysinfo.sh, then adjust syscall_linux_mipsx.go to read the program counter from the correct field. In addition, implement PtraceGetRegs and PtraceSetRegs on all 3 ABI variants. syscall_linux_mips64x.go can now be removed since the ptrace code on all 3 ABIs is identical. Reviewed-on: https://go-review.googlesource.com/46150 From-SVN: r249472
2017-06-22 05:42:41 +08:00
#if defined(HAVE_LINUX_PTRACE_H)
libgo: redefine ia64 struct names around linux/ptrace.h Avoid https://sourceware.org/bugzilla/show_bug.cgi?id=762. Patch by Andreas Schwab. Reviewed-on: https://go-review.googlesource.com/46711 From-SVN: r249662
2017-06-27 01:56:14 +08:00
/* Avoid https://sourceware.org/bugzilla/show_bug.cgi?id=762 . */
#define ia64_fpreg pt_ia64_fpreg
#define pt_all_user_regs pt_ia64_all_user_regs
re PR go/81324 (libgo does not build with glibc 2.18) PR go/81324 sysinfo.c: ignore ptrace_peeksiginfo_args from <linux/ptrace.h> With some versions of glibc and GNU/Linux ptrace_pseeksiginfo_args is defined in both <sys/ptrace.h> and <linux/ptrace.h>. We don't actually care about the struct, so use a #define to avoid a redefinition error. This fixes https://gcc.gnu.org/PR81324. Reviewed-on: https://go-review.googlesource.com/49290 From-SVN: r250324
2017-07-19 06:06:31 +08:00
/* Avoid redefinition of ptrace_peeksiginfo from <sys/ptrace.h>.
https://gcc.gnu.org/PR81324 . */
#define ptrace_peeksiginfo_args ignore_ptrace_peeksiginfo_args
libgo, syscall: fix ptrace implementation on MIPS On MIPS, the correct structure for PtraceRegs is 'struct pt_regs' which is declared in linux/ptrace.h. Previously no PtraceRegs structure was created on MIPS because 'struct user_regs_struct' doesn't exist there. Fallback to using pt_regs when the PtraceRegs structure is generated in mksysinfo.sh, then adjust syscall_linux_mipsx.go to read the program counter from the correct field. In addition, implement PtraceGetRegs and PtraceSetRegs on all 3 ABI variants. syscall_linux_mips64x.go can now be removed since the ptrace code on all 3 ABIs is identical. Reviewed-on: https://go-review.googlesource.com/46150 From-SVN: r249472
2017-06-22 05:42:41 +08:00
#include <linux/ptrace.h>
libgo: redefine ia64 struct names around linux/ptrace.h Avoid https://sourceware.org/bugzilla/show_bug.cgi?id=762. Patch by Andreas Schwab. Reviewed-on: https://go-review.googlesource.com/46711 From-SVN: r249662
2017-06-27 01:56:14 +08:00
#undef ia64_fpreg
#undef pt_all_user_regs
re PR go/81324 (libgo does not build with glibc 2.18) PR go/81324 sysinfo.c: ignore ptrace_peeksiginfo_args from <linux/ptrace.h> With some versions of glibc and GNU/Linux ptrace_pseeksiginfo_args is defined in both <sys/ptrace.h> and <linux/ptrace.h>. We don't actually care about the struct, so use a #define to avoid a redefinition error. This fixes https://gcc.gnu.org/PR81324. Reviewed-on: https://go-review.googlesource.com/49290 From-SVN: r250324
2017-07-19 06:06:31 +08:00
#undef ptrace_peeksiginfo_args
libgo, syscall: fix ptrace implementation on MIPS On MIPS, the correct structure for PtraceRegs is 'struct pt_regs' which is declared in linux/ptrace.h. Previously no PtraceRegs structure was created on MIPS because 'struct user_regs_struct' doesn't exist there. Fallback to using pt_regs when the PtraceRegs structure is generated in mksysinfo.sh, then adjust syscall_linux_mipsx.go to read the program counter from the correct field. In addition, implement PtraceGetRegs and PtraceSetRegs on all 3 ABI variants. syscall_linux_mips64x.go can now be removed since the ptrace code on all 3 ABIs is identical. Reviewed-on: https://go-review.googlesource.com/46150 From-SVN: r249472
2017-06-22 05:42:41 +08:00
#endif
libgo: separate mksysinfo inputs into separate Makefile targets This is a step toward a version of mksysinfo that generates information for the runtime package. This will be used to generate the runtime_sysinfo.go file, which is currently directly generated by a Makefile target. Reviewed-on: https://go-review.googlesource.com/29683 From-SVN: r240560
2016-09-28 05:32:50 +08:00
#if defined(HAVE_LINUX_RTNETLINK_H)
#include <linux/rtnetlink.h>
#endif
#if defined(HAVE_NET_IF_H)
#include <net/if.h>
#endif
#if defined(HAVE_NET_IF_ARP_H)
#include <net/if_arp.h>
#endif
#if defined(HAVE_NET_ROUTE_H)
#include <net/route.h>
#endif
#if defined (HAVE_NETPACKET_PACKET_H)
#include <netpacket/packet.h>
#endif
#if defined(HAVE_SYS_MOUNT_H)
#include <sys/mount.h>
#endif
#if defined(HAVE_SYS_VFS_H)
#include <sys/vfs.h>
#endif
#if defined(HAVE_STATFS_H)
#include <sys/statfs.h>
#endif
#if defined(HAVE_SYS_TIMEX_H)
#include <sys/timex.h>
#endif
#if defined(HAVE_SYS_SYSINFO_H)
#include <sys/sysinfo.h>
#endif
#if defined(HAVE_USTAT_H)
#include <ustat.h>
#endif
#if defined(HAVE_UTIME_H)
#include <utime.h>
#endif
#if defined(HAVE_LINUX_ETHER_H)
#include <linux/ether.h>
#endif
#if defined(HAVE_LINUX_FS_H)
#include <linux/fs.h>
#endif
#if defined(HAVE_LINUX_REBOOT_H)
#include <linux/reboot.h>
#endif
#if defined(HAVE_SYS_INOTIFY_H)
#include <sys/inotify.h>
#endif
#if defined(HAVE_NETINET_ICMP6_H)
#include <netinet/icmp6.h>
#endif
#if defined(HAVE_SCHED_H)
#include <sched.h>
#endif
runtime: copy internal locking code from Go 1.7 runtime Remove the old locking code written in C. Add a shell script mkrsysinfo.sh to generate the runtime_sysinfo.go file, so that we can get Go copies of the system time structures and other types. Tweak the compiler so that when compiling the runtime package the address operator does not cause local variables to escape. When the gc compiler compiles the runtime, an escaping local variable is treated as an error. We should implement that, instead of this change, when escape analysis is turned on. Tweak the compiler so that the generated C header does not include names that start with an underscore followed by a non-upper-case letter, except for the special cases of _defer and _panic. Otherwise we translate C types to Go in runtime_sysinfo.go and then generate those Go types back as C types in runtime.inc, which is useless and painful for the C code. Change entersyscall and friends to take a dummy argument, as the gc versions do, to simplify calls from the shared code. Reviewed-on: https://go-review.googlesource.com/30079 From-SVN: r240657
2016-09-30 21:45:08 +08:00
#if defined(HAVE_SEMAPHORE_H)
#include <semaphore.h>
#endif
runtime: copy netpoll code from Go 1.7 runtime Reviewed-on: https://go-review.googlesource.com/31325 From-SVN: r241307
2016-10-18 22:38:29 +08:00
#if defined(HAVE_PORT_H)
#include <port.h>
#endif
libgo: separate mksysinfo inputs into separate Makefile targets This is a step toward a version of mksysinfo that generates information for the runtime package. This will be used to generate the runtime_sysinfo.go file, which is currently directly generated by a Makefile target. Reviewed-on: https://go-review.googlesource.com/29683 From-SVN: r240560
2016-09-28 05:32:50 +08:00
runtime, reflect: rewrite Go to FFI type conversion in Go As we move toward the Go 1.7 garbage collector, it's essential that all allocation of values that can contain Go pointers be done using the correct type descriptor. That is simplest if we do all such allocation in Go code. This rewrites the code that converts from a Go type to a libffi CIF into Go. Reviewed-on: https://go-review.googlesource.com/33353 From-SVN: r242578
2016-11-18 08:15:38 +08:00
#ifdef USE_LIBFFI
#include "ffi.h"
#endif
libgo: separate mksysinfo inputs into separate Makefile targets This is a step toward a version of mksysinfo that generates information for the runtime package. This will be used to generate the runtime_sysinfo.go file, which is currently directly generated by a Makefile target. Reviewed-on: https://go-review.googlesource.com/29683 From-SVN: r240560
2016-09-28 05:32:50 +08:00
/* Constants that may only be defined as expressions on some systems,
expressions too complex for -fdump-go-spec to handle. These are
handled specially below. */
enum {
#ifdef TIOCGWINSZ
TIOCGWINSZ_val = TIOCGWINSZ,
#endif
#ifdef TIOCSWINSZ
TIOCSWINSZ_val = TIOCSWINSZ,
#endif
#ifdef TIOCNOTTY
TIOCNOTTY_val = TIOCNOTTY,
#endif
#ifdef TIOCSCTTY
TIOCSCTTY_val = TIOCSCTTY,
#endif
#ifdef TIOCGPGRP
TIOCGPGRP_val = TIOCGPGRP,
#endif
#ifdef TIOCSPGRP
TIOCSPGRP_val = TIOCSPGRP,
#endif
#ifdef TIOCGPTN
TIOCGPTN_val = TIOCGPTN,
#endif
#ifdef TIOCSPTLCK
TIOCSPTLCK_val = TIOCSPTLCK,
#endif
#ifdef TIOCGDEV
TIOCGDEV_val = TIOCGDEV,
#endif
#ifdef TIOCSIG
TIOCSIG_val = TIOCSIG,
#endif
#ifdef TCGETS
TCGETS_val = TCGETS,
#endif
#ifdef TCSETS
TCSETS_val = TCSETS,
#endif
#ifdef TUNSETIFF
TUNSETIFF_val = TUNSETIFF,
#endif
#ifdef TUNSETNOCSUM
TUNSETNOCSUM_val = TUNSETNOCSUM,
#endif
#ifdef TUNSETDEBUG
TUNSETDEBUG_val = TUNSETDEBUG,
#endif
#ifdef TUNSETPERSIST
TUNSETPERSIST_val = TUNSETPERSIST,
#endif
#ifdef TUNSETOWNER
TUNSETOWNER_val = TUNSETOWNER,
#endif
#ifdef TUNSETLINK
TUNSETLINK_val = TUNSETLINK,
#endif
#ifdef TUNSETGROUP
TUNSETGROUP_val = TUNSETGROUP,
#endif
#ifdef TUNGETFEATURES
TUNGETFEATURES_val = TUNGETFEATURES,
#endif
#ifdef TUNSETOFFLOAD
TUNSETOFFLOAD_val = TUNSETOFFLOAD,
#endif
#ifdef TUNSETTXFILTER
TUNSETTXFILTER_val = TUNSETTXFILTER,
#endif
#ifdef TUNGETIFF
TUNGETIFF_val = TUNGETIFF,
#endif
#ifdef TUNGETSNDBUF
TUNGETSNDBUF_val = TUNGETSNDBUF,
#endif
#ifdef TUNSETSNDBUF
TUNSETSNDBUF_val = TUNSETSNDBUF,
#endif
#ifdef TUNATTACHFILTER
TUNATTACHFILTER_val = TUNATTACHFILTER,
#endif
#ifdef TUNDETACHFILTER
TUNDETACHFILTER_val = TUNDETACHFILTER,
#endif
#ifdef TUNGETVNETHDRSZ
TUNGETVNETHDRSZ_val = TUNGETVNETHDRSZ,
#endif
#ifdef TUNSETVNETHDRSZ
TUNSETVNETHDRSZ_val = TUNSETVNETHDRSZ,
#endif
#ifdef TUNSETQUEUE
TUNSETQUEUE_val = TUNSETQUEUE,
#endif
#ifdef TUNSETIFINDEX
TUNSETIFINDEX_val = TUNSETIFINDEX,
#endif
#ifdef TUNGETFILTER
TUNGETFILTER_val = TUNGETFILTER,
#endif
#ifdef NLA_HDRLEN
NLA_HDRLEN_val = NLA_HDRLEN,
#endif
};
runtime: copy netpoll code from Go 1.7 runtime Reviewed-on: https://go-review.googlesource.com/31325 From-SVN: r241307
2016-10-18 22:38:29 +08:00
#if defined(HAVE_SYS_EPOLL_H)
enum {
epoll_data_offset = offsetof(struct epoll_event, data)
};
#endif
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