c0401cf78c
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
104 lines
3.8 KiB
Bash
Executable File
104 lines
3.8 KiB
Bash
Executable File
#!/bin/sh
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# Copyright 2016 The Go Authors. All rights reserved.
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# Use of this source code is governed by a BSD-style
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# license that can be found in the LICENSE file.
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# Create runtime_sysinfo.go from gen-sysinfo.go and errno.i.
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OUT=tmp-runtime_sysinfo.go
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set -e
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echo 'package runtime' > ${OUT}
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# Get all the consts and types, skipping ones which could not be
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# represented in Go and ones which we need to rewrite. We also skip
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# function declarations, as we don't need them here. All the symbols
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# will all have a leading underscore.
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grep -v '^// ' gen-sysinfo.go | \
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grep -v '^func' | \
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grep -v '^type _timeval ' | \
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grep -v '^type _timespec_t ' | \
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grep -v '^type _timespec ' | \
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grep -v '^type _epoll_' | \
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grep -v 'in6_addr' | \
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grep -v 'sockaddr_in6' | \
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sed -e 's/\([^a-zA-Z0-9_]\)_timeval\([^a-zA-Z0-9_]\)/\1timeval\2/g' \
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-e 's/\([^a-zA-Z0-9_]\)_timespec_t\([^a-zA-Z0-9_]\)/\1timespec\2/g' \
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-e 's/\([^a-zA-Z0-9_]\)_timespec\([^a-zA-Z0-9_]\)/\1timespec\2/g' \
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>> ${OUT}
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# The time structures need special handling: we need to name the
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# types, so that we can cast integers to the right types when
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# assigning to the structures.
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timeval=`grep '^type _timeval ' gen-sysinfo.go`
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timeval_sec=`echo $timeval | sed -n -e 's/^.*tv_sec \([^ ]*\);.*$/\1/p'`
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timeval_usec=`echo $timeval | sed -n -e 's/^.*tv_usec \([^ ]*\);.*$/\1/p'`
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echo "type timeval_sec_t $timeval_sec" >> ${OUT}
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echo "type timeval_usec_t $timeval_usec" >> ${OUT}
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echo $timeval | \
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sed -e 's/type _timeval /type timeval /' \
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-e 's/tv_sec *[a-zA-Z0-9_]*/tv_sec timeval_sec_t/' \
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-e 's/tv_usec *[a-zA-Z0-9_]*/tv_usec timeval_usec_t/' >> ${OUT}
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timespec=`grep '^type _timespec ' gen-sysinfo.go || true`
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if test "$timespec" = ""; then
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# IRIX 6.5 has __timespec instead.
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timespec=`grep '^type ___timespec ' gen-sysinfo.go || true`
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fi
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timespec_sec=`echo $timespec | sed -n -e 's/^.*tv_sec \([^ ]*\);.*$/\1/p'`
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timespec_nsec=`echo $timespec | sed -n -e 's/^.*tv_nsec \([^ ]*\);.*$/\1/p'`
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echo "type timespec_sec_t $timespec_sec" >> ${OUT}
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echo "type timespec_nsec_t $timespec_nsec" >> ${OUT}
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echo $timespec | \
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sed -e 's/^type ___timespec /type timespec /' \
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-e 's/^type _timespec /type timespec /' \
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-e 's/tv_sec *[a-zA-Z0-9_]*/tv_sec timespec_sec_t/' \
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-e 's/tv_nsec *[a-zA-Z0-9_]*/tv_nsec timespec_nsec_t/' >> ${OUT}
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echo >> ${OUT}
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echo "func (ts *timespec) set_sec(x int64) {" >> ${OUT}
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echo " ts.tv_sec = timespec_sec_t(x)" >> ${OUT}
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echo "}" >> ${OUT}
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echo >> ${OUT}
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echo "func (ts *timespec) set_nsec(x int32) {" >> ${OUT}
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echo " ts.tv_nsec = timespec_nsec_t(x)" >> ${OUT}
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echo "}" >> ${OUT}
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# The semt structure, for Solaris.
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grep '^type _sem_t ' gen-sysinfo.go | \
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sed -e 's/_sem_t/semt/' >> ${OUT}
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# Solaris 2 needs _u?pad128_t, but its default definition in terms of long
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# double is commented by -fdump-go-spec.
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if grep "^// type _pad128_t" gen-sysinfo.go > /dev/null 2>&1; then
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echo "type _pad128_t struct { _l [4]int32; }" >> ${OUT}
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fi
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if grep "^// type _upad128_t" gen-sysinfo.go > /dev/null 2>&1; then
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echo "type _upad128_t struct { _l [4]uint32; }" >> ${OUT}
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fi
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# The Solaris 11 Update 1 _zone_net_addr_t struct.
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grep '^type _zone_net_addr_t ' gen-sysinfo.go | \
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sed -e 's/_in6_addr/[16]byte/' \
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>> ${OUT}
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# The Solaris 12 _flow_arp_desc_t struct.
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grep '^type _flow_arp_desc_t ' gen-sysinfo.go | \
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sed -e 's/_in6_addr_t/[16]byte/g' \
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>> ${OUT}
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# The Solaris 12 _flow_l3_desc_t struct.
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grep '^type _flow_l3_desc_t ' gen-sysinfo.go | \
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sed -e 's/_in6_addr_t/[16]byte/g' \
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>> ${OUT}
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# The Solaris 12 _mac_ipaddr_t struct.
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grep '^type _mac_ipaddr_t ' gen-sysinfo.go | \
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sed -e 's/_in6_addr_t/[16]byte/g' \
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>> ${OUT}
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# The Solaris 12 _mactun_info_t struct.
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grep '^type _mactun_info_t ' gen-sysinfo.go | \
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sed -e 's/_in6_addr_t/[16]byte/g' \
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>> ${OUT}
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