Hi, I was recommended to ask here but I'm trying to enable gccgo to run
on parisc, however I am not sure what the proper values should be for
the arch configuration settings. The description is as follows:
# Code in Makefile.am will invoke this script with two arguments.
# The first is a GOARCH value. The second is a keyword.
# The script will print the value of that keyword for that GOARCH.
# Keywords:
# - bigendian: true or false
# - cachelinesize: the cache line size in bytes
# (for performance only; it's not essential to get this right)
# - defaultphyspagesize: the default physical page size in bytes
# (not currently used, but maybe some day)
# - family: the processor family, from ALLGOARCHFAMILY in configure.ac
# - int64align: alignment of int64 type in bytes
# - maxalign: maximum alignment of values of Go types in bytes
# - minframesize: size of smallest possible function frame in bytes
# (not currently used, may never be used)
# - pcquantum: minimum size of a single instruction in bytes
# - ptrsize: size of a pointer in bytes
There is also an undocumented "stackalign" variable.
# Default values
bigendian=false
cachelinesize=64
defaultphyspagesize=4096
family=unknown
int64align=8
maxalign=8
minframesize=0
pcquantum=1
ptrsize=8
stackalign=8
This was what I first attempted to set, according to a brief skim of the
ISA manual:
diff --git a/libgo/goarch.sh b/libgo/goarch.sh
index 977f318b3..ed40815ac 100755
--- a/libgo/goarch.sh
+++ b/libgo/goarch.sh
@@ -88,6 +88,16 @@ case $goarch in
;;
esac
;;
+ hppa)
+ family=HPPA
+ bigendian=true
+ defaultphyspagesize=4096
+ minframesize=16
+ int64align=8
+ stackalign=4
+ pcquantum=4
+ ptrsize=4
+ ;;
ia64)
family=IA64
cachelinesize=128
However this was clearly wrong, because while it did build, the
resulting binary immediately segfaults.
unexpected fault address 0x33d8effc
fatal error: fault
[signal SIGSEGV: segmentation violation code=0x1 addr=0x33d8effc
pc=0xf58f4284]
goroutine 4 [running]:
runtime.dopanic__m
/var/tmp/portage/sys-devel/gcc-12.2.1_p20221008/work/gcc-12-20221008/libgo/go/runtime/panic.go:1207
runtime.fatalthrow
/var/tmp/portage/sys-devel/gcc-12.2.1_p20221008/work/gcc-12-20221008/libgo/go/runtime/panic.go:1073
runtime.throw
/var/tmp/portage/sys-devel/gcc-12.2.1_p20221008/work/gcc-12-20221008/libgo/go/runtime/panic.go:1044
runtime.sigpanic
/var/tmp/portage/sys-devel/gcc-12.2.1_p20221008/work/gcc-12-20221008/libgo/go/runtime/signal_unix.go:714
net_1http.connectMethod.scheme
/var/tmp/portage/sys-devel/gcc-12.2.1_p20221008/work/gcc-12-20221008/libgo/go/net/http/transport.go:1829
net_1http.Transport.dialConn
/var/tmp/portage/sys-devel/gcc-12.2.1_p20221008/work/gcc-12-20221008/libgo/go/net/http/transport.go:1612
net_1http.Transport.dialConnFor
/var/tmp/portage/sys-devel/gcc-12.2.1_p20221008/work/gcc-12-20221008/libgo/go/net/http/transport.go:1449
runtime.kickoff
/var/tmp/portage/sys-devel/gcc-12.2.1_p20221008/work/gcc-12-20221008/libgo/go/runtime/proc.go:1316
created by net_1http.Transport.queueForDial
/var/tmp/portage/sys-devel/gcc-12.2.1_p20221008/work/gcc-12-20221008/libgo/go/net/http/transport.go:1418
+0x37b
Is there anybody who might be able to advise on what these values should
be for parisc?
