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author | Ian Lance Taylor <iant@golang.org> | 2022-06-14 11:33:42 -0700 |
---|---|---|
committer | Ian Lance Taylor <iant@golang.org> | 2022-06-17 14:27:06 -0700 |
commit | 7f195a2270910a6ed08bd76e3a16b0a6503f9faf (patch) | |
tree | 053387a6fe016bd4420765eb3c45415787fae6f7 | |
parent | a284fadcce8ef443cc3cc047a8017745efb51758 (diff) | |
download | gcc-7f195a2270910a6ed08bd76e3a16b0a6503f9faf.zip gcc-7f195a2270910a6ed08bd76e3a16b0a6503f9faf.tar.gz gcc-7f195a2270910a6ed08bd76e3a16b0a6503f9faf.tar.bz2 |
libgo: permit loff_t and off_t to be macros
They are macros in musl libc, rather than typedefs, and -fgo-dump-spec
doesn't handle that case.
Based on patch by Sören Tempel.
Reviewed-on: https://go-review.googlesource.com/c/gofrontend/+/412075
-rw-r--r-- | gcc/go/gofrontend/MERGE | 2 | ||||
-rw-r--r-- | libgo/config.h.in | 3 | ||||
-rwxr-xr-x | libgo/configure | 9 | ||||
-rw-r--r-- | libgo/configure.ac | 8 | ||||
-rw-r--r-- | libgo/go/syscall/libcall_linux.go | 16 | ||||
-rwxr-xr-x | libgo/mksysinfo.sh | 6 | ||||
-rw-r--r-- | libgo/sysinfo.c | 15 |
7 files changed, 40 insertions, 19 deletions
diff --git a/gcc/go/gofrontend/MERGE b/gcc/go/gofrontend/MERGE index 0cda305..4b75dd3 100644 --- a/gcc/go/gofrontend/MERGE +++ b/gcc/go/gofrontend/MERGE @@ -1,4 +1,4 @@ -8db6b78110f84e22c409f334aeaefb80a8b39917 +a409e049737ec9a358a19233e017d957db3d6d2a The first line of this file holds the git revision number of the last merge done from the gofrontend repository. diff --git a/libgo/config.h.in b/libgo/config.h.in index 25b8ab8..2c3c746 100644 --- a/libgo/config.h.in +++ b/libgo/config.h.in @@ -70,6 +70,9 @@ /* Define to 1 if you have the `fchownat' function. */ #undef HAVE_FCHOWNAT +/* Define to 1 if you have the <fcntl.h> header file. */ +#undef HAVE_FCNTL_H + /* Define to 1 if you have the `futimesat' function. */ #undef HAVE_FUTIMESAT diff --git a/libgo/configure b/libgo/configure index ffe17c9..b7ff9b3 100755 --- a/libgo/configure +++ b/libgo/configure @@ -15249,7 +15249,7 @@ $as_echo "#define HAVE_GETIPINFO 1" >>confdefs.h fi -for ac_header in port.h sched.h semaphore.h sys/file.h sys/mman.h syscall.h sys/epoll.h sys/event.h sys/inotify.h sys/ptrace.h sys/syscall.h sys/sysctl.h sys/user.h sys/utsname.h sys/select.h sys/socket.h net/bpf.h net/if.h net/if_arp.h net/route.h netpacket/packet.h sys/prctl.h sys/mount.h sys/vfs.h sys/statfs.h sys/timex.h sys/sysinfo.h utime.h linux/ether.h linux/fs.h linux/ptrace.h linux/reboot.h netinet/in_syst.h netinet/ip.h netinet/ip_mroute.h netinet/if_ether.h lwp.h +for ac_header in fcntl.h port.h sched.h semaphore.h sys/file.h sys/mman.h syscall.h sys/epoll.h sys/event.h sys/inotify.h sys/ptrace.h sys/syscall.h sys/sysctl.h sys/user.h sys/utsname.h sys/select.h sys/socket.h net/bpf.h net/if.h net/if_arp.h net/route.h netpacket/packet.h sys/prctl.h sys/mount.h sys/vfs.h sys/statfs.h sys/timex.h sys/sysinfo.h utime.h linux/ether.h linux/fs.h linux/ptrace.h linux/reboot.h netinet/in_syst.h netinet/ip.h netinet/ip_mroute.h netinet/if_ether.h lwp.h do : as_ac_Header=`$as_echo "ac_cv_header_$ac_header" | $as_tr_sh` ac_fn_c_check_header_mongrel "$LINENO" "$ac_header" "$as_ac_Header" "$ac_includes_default" @@ -15546,7 +15546,11 @@ _ACEOF fi -ac_fn_c_check_type "$LINENO" "loff_t" "ac_cv_type_loff_t" "$ac_includes_default" + +CFLAGS_hold="$CFLAGS" +CFLAGS="$OSCFLAGS $CFLAGS" +ac_fn_c_check_type "$LINENO" "loff_t" "ac_cv_type_loff_t" "#include <fcntl.h> +" if test "x$ac_cv_type_loff_t" = xyes; then : cat >>confdefs.h <<_ACEOF @@ -15556,6 +15560,7 @@ _ACEOF fi +CFLAGS="$CFLAGS_hold" LIBS_hold="$LIBS" LIBS="$LIBS -lm" diff --git a/libgo/configure.ac b/libgo/configure.ac index 7e2b98b..bac58b0 100644 --- a/libgo/configure.ac +++ b/libgo/configure.ac @@ -579,7 +579,7 @@ AC_C_BIGENDIAN GCC_CHECK_UNWIND_GETIPINFO -AC_CHECK_HEADERS(port.h sched.h semaphore.h sys/file.h sys/mman.h syscall.h sys/epoll.h sys/event.h sys/inotify.h sys/ptrace.h sys/syscall.h sys/sysctl.h sys/user.h sys/utsname.h sys/select.h sys/socket.h net/bpf.h net/if.h net/if_arp.h net/route.h netpacket/packet.h sys/prctl.h sys/mount.h sys/vfs.h sys/statfs.h sys/timex.h sys/sysinfo.h utime.h linux/ether.h linux/fs.h linux/ptrace.h linux/reboot.h netinet/in_syst.h netinet/ip.h netinet/ip_mroute.h netinet/if_ether.h lwp.h) +AC_CHECK_HEADERS(fcntl.h port.h sched.h semaphore.h sys/file.h sys/mman.h syscall.h sys/epoll.h sys/event.h sys/inotify.h sys/ptrace.h sys/syscall.h sys/sysctl.h sys/user.h sys/utsname.h sys/select.h sys/socket.h net/bpf.h net/if.h net/if_arp.h net/route.h netpacket/packet.h sys/prctl.h sys/mount.h sys/vfs.h sys/statfs.h sys/timex.h sys/sysinfo.h utime.h linux/ether.h linux/fs.h linux/ptrace.h linux/reboot.h netinet/in_syst.h netinet/ip.h netinet/ip_mroute.h netinet/if_ether.h lwp.h) AC_CHECK_HEADERS([netinet/icmp6.h], [], [], [#include <netinet/in.h> @@ -601,7 +601,11 @@ AC_STRUCT_DIRENT_D_TYPE AC_CHECK_FUNCS(accept4 dup3 epoll_create1 faccessat fallocate fchmodat fchownat futimesat getxattr inotify_add_watch inotify_init inotify_init1 inotify_rm_watch listxattr mkdirat mknodat open64 openat pipe2 removexattr renameat setxattr sync_file_range splice syscall tee unlinkat unshare utimensat) AC_TYPE_OFF_T -AC_CHECK_TYPES([loff_t]) + +CFLAGS_hold="$CFLAGS" +CFLAGS="$OSCFLAGS $CFLAGS" +AC_CHECK_TYPES([loff_t], [], [], [[#include <fcntl.h>]]) +CFLAGS="$CFLAGS_hold" LIBS_hold="$LIBS" LIBS="$LIBS -lm" diff --git a/libgo/go/syscall/libcall_linux.go b/libgo/go/syscall/libcall_linux.go index 7bec2fb..19ae439 100644 --- a/libgo/go/syscall/libcall_linux.go +++ b/libgo/go/syscall/libcall_linux.go @@ -210,20 +210,20 @@ func Gettid() (tid int) { //sys Setxattr(path string, attr string, data []byte, flags int) (err error) //setxattr(path *byte, name *byte, value *byte, size Size_t, flags _C_int) _C_int -//sys splice(rfd int, roff *_loff_t, wfd int, woff *_loff_t, len int, flags int) (n int64, err error) -//splice(rfd _C_int, roff *_loff_t, wfd _C_int, woff *_loff_t, len Size_t, flags _C_uint) Ssize_t +//sys splice(rfd int, roff *_libgo_loff_t_type, wfd int, woff *_libgo_loff_t_type, len int, flags int) (n int64, err error) +//splice(rfd _C_int, roff *_libgo_loff_t_type, wfd _C_int, woff *_libgo_loff_t_type, len Size_t, flags _C_uint) Ssize_t func Splice(rfd int, roff *int64, wfd int, woff *int64, len int, flags int) (n int64, err error) { - var lroff _loff_t - var plroff *_loff_t + var lroff _libgo_loff_t_type + var plroff *_libgo_loff_t_type if roff != nil { - lroff = _loff_t(*roff) + lroff = _libgo_loff_t_type(*roff) plroff = &lroff } - var lwoff _loff_t - var plwoff *_loff_t + var lwoff _libgo_loff_t_type + var plwoff *_libgo_loff_t_type if woff != nil { - lwoff = _loff_t(*woff) + lwoff = _libgo_loff_t_type(*woff) plwoff = &lwoff } n, err = splice(rfd, plroff, wfd, plwoff, len, flags) diff --git a/libgo/mksysinfo.sh b/libgo/mksysinfo.sh index 0c52ea5..5aa3091 100755 --- a/libgo/mksysinfo.sh +++ b/libgo/mksysinfo.sh @@ -403,11 +403,7 @@ fi # Some basic types. echo 'type Size_t _size_t' >> ${OUT} echo "type Ssize_t _ssize_t" >> ${OUT} -if grep '^const _HAVE_OFF64_T = ' gen-sysinfo.go > /dev/null 2>&1; then - echo "type Offset_t _off64_t" >> ${OUT} -else - echo "type Offset_t _off_t" >> ${OUT} -fi +echo "type Offset_t _libgo_off_t_type" >> ${OUT} echo "type Mode_t _mode_t" >> ${OUT} echo "type Pid_t _pid_t" >> ${OUT} echo "type Uid_t _uid_t" >> ${OUT} diff --git a/libgo/sysinfo.c b/libgo/sysinfo.c index 8ce061e..a4259c0 100644 --- a/libgo/sysinfo.c +++ b/libgo/sysinfo.c @@ -357,6 +357,18 @@ enum { }; #endif +#if defined(HAVE_LOFF_T) +// loff_t can be defined as a macro; for -fgo-dump-spec make sure we +// see a typedef. +typedef loff_t libgo_loff_t_type; +#endif + +#if defined(HAVE_OFF64_T) +typedef off64_t libgo_off_t_type; +#else +typedef off_t libgo_off_t_type; +#endif + // The following section introduces explicit references to types and // constants of interest to support bootstrapping libgo using a // compiler that doesn't support -fdump-go-spec (e.g., clang), via @@ -537,7 +549,8 @@ SREF(timex); // From sys/types.h TREF(pid_t); TREF(off_t); -TREF(loff_t); +TREF(libgo_loff_t_type); +TREF(libgo_off_t_type); TREF(size_t); TREF(ssize_t); TREF(mode_t); |