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| author | Ian Lance Taylor <ian@gcc.gnu.org> | 2016-10-19 16:53:13 +0000 |
|---|---|---|
| committer | Ian Lance Taylor <ian@gcc.gnu.org> | 2016-10-19 16:53:13 +0000 |
| commit | 29849c91e41478ce7c86d5fe4f1582179b845ef8 (patch) | |
| tree | 99ea1098649c175fe24c94394f1bd520f6c18770 /libgo | |
| parent | b70f0b0cc3134537d56b2115289cb94c3eb7a4e4 (diff) | |
| download | gcc-29849c91e41478ce7c86d5fe4f1582179b845ef8.zip gcc-29849c91e41478ce7c86d5fe4f1582179b845ef8.tar.gz gcc-29849c91e41478ce7c86d5fe4f1582179b845ef8.tar.bz2 | |
runtime, syscall: force EPOLLET to be positive
The C definition is 1U << 31. Reportedly on some systems GCC's
-fgo-dump-spec can print this as -2147483648.
Reviewed-on: https://go-review.googlesource.com/31448
From-SVN: r241347
Diffstat (limited to 'libgo')
| -rw-r--r-- | libgo/go/runtime/netpoll_epoll.go | 2 | ||||
| -rwxr-xr-x | libgo/mkrsysinfo.sh | 6 | ||||
| -rwxr-xr-x | libgo/mksysinfo.sh | 8 |
3 files changed, 15 insertions, 1 deletions
diff --git a/libgo/go/runtime/netpoll_epoll.go b/libgo/go/runtime/netpoll_epoll.go index 777150e..247692e 100644 --- a/libgo/go/runtime/netpoll_epoll.go +++ b/libgo/go/runtime/netpoll_epoll.go @@ -49,7 +49,7 @@ func netpollinit() { func netpollopen(fd uintptr, pd *pollDesc) int32 { var ev epollevent - ev.events = _EPOLLIN | _EPOLLOUT | _EPOLLRDHUP | _EPOLLET + ev.events = _EPOLLIN | _EPOLLOUT | _EPOLLRDHUP | _EPOLLETpos *(**pollDesc)(unsafe.Pointer(&ev.data)) = pd if epollctl(epfd, _EPOLL_CTL_ADD, int32(fd), &ev) < 0 { return int32(errno()) diff --git a/libgo/mkrsysinfo.sh b/libgo/mkrsysinfo.sh index d05e5ec..ffbbcea 100755 --- a/libgo/mkrsysinfo.sh +++ b/libgo/mkrsysinfo.sh @@ -77,6 +77,12 @@ if grep '^const _epoll_data_offset ' ${OUT} >/dev/null 2>&1; then exit 1 fi fi +# Make sure EPOLLET is positive. +if grep '^const _EPOLLET = [0-9]' gen-sysinfo.go; then + echo "const _EPOLLETpos = _EPOLLET" >> ${OUT} +else + echo "const _EPOLLETpos = 0x80000000" >> ${OUT} +fi # Make sure EPOLLRDHUP and EPOLL_CLOEXEC are defined. if ! grep '^const _EPOLLRDHUP' ${OUT} >/dev/null 2>&1; then echo "const _EPOLLRDHUP = 0x2000" >> ${OUT} diff --git a/libgo/mksysinfo.sh b/libgo/mksysinfo.sh index f79b5cf..3640476 100755 --- a/libgo/mksysinfo.sh +++ b/libgo/mksysinfo.sh @@ -185,7 +185,15 @@ fi # epoll constants. grep '^const _EPOLL' gen-sysinfo.go | + grep -v EPOLLET | sed -e 's/^\(const \)_\(EPOLL[^= ]*\)\(.*\)$/\1\2 = _\2/' >> ${OUT} +# Make sure EPOLLET is positive. +if grep '^const _EPOLLET = [0-9]' gen-sysinfo.go; then + grep '^const _EPOLLET ' gen-sysinfo.go | + sed -e 's/^\(const \)_\(EPOLL[^= ]*\)\(.*\)$/\1\2 = _\2/' >> ${OUT} +else + echo "const EPOLLET = 0x80000000" >> ${OUT} +fi # Make sure EPOLLRDHUP and EPOLL_CLOEXEC are defined. if ! grep '^const EPOLLRDHUP' ${OUT} >/dev/null 2>&1; then echo "const EPOLLRDHUP = 0x2000" >> ${OUT} |