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Re: RTEMS Go Patch
- From: Ian Lance Taylor <iant at google dot com>
- To: Joel Sherrill <joel dot sherrill at oarcorp dot com>
- Cc: "gcc-patches\ at gcc dot gnu dot org" <gcc-patches at gcc dot gnu dot org>, gofrontend-dev at googlegroups dot com
- Date: Tue, 13 Dec 2011 14:08:19 -0800
- Subject: Re: RTEMS Go Patch
- References: <4ED92B17.9090404@oarcorp.com>
Joel Sherrill <joel.sherrill@oarcorp.com> writes:
> * libgo/go/syscall/wait.c: Conditionalize on WIFxxx macros
> and SIGxxx being defined.
I think I have fixed the wait issues as follows. Bootstrapped on
x86_64-unknown-linux-gnu, which means little as the files are not
compiled there. Committed to mainline.
Ian
diff -r e62855c629d3 libgo/Makefile.am
--- a/libgo/Makefile.am Tue Dec 13 13:58:40 2011 -0800
+++ b/libgo/Makefile.am Tue Dec 13 14:06:40 2011 -0800
@@ -1450,11 +1450,22 @@
endif
# Define Wait4.
+if LIBGO_IS_RTEMS
+syscall_wait_file =
+else
if HAVE_WAIT4
syscall_wait_file = go/syscall/libcall_wait4.go
else
syscall_wait_file = go/syscall/libcall_waitpid.go
endif
+endif
+
+# Support for pulling apart wait status.
+if LIBGO_IS_RTEMS
+syscall_wait_c_file =
+else
+syscall_wait_c_file = go/syscall/wait.c
+endif
# Define Sleep.
if LIBGO_IS_RTEMS
@@ -1564,7 +1575,7 @@
syscall_arch.go
go_syscall_c_files = \
go/syscall/errno.c \
- go/syscall/wait.c
+ $(syscall_wait_c_file)
libcalls.go: s-libcalls; @true
s-libcalls: Makefile go/syscall/mksyscall.awk $(go_base_syscall_files)
diff -r e62855c629d3 libgo/go/syscall/exec_stubs.go
--- a/libgo/go/syscall/exec_stubs.go Tue Dec 13 13:58:40 2011 -0800
+++ b/libgo/go/syscall/exec_stubs.go Tue Dec 13 14:06:40 2011 -0800
@@ -7,17 +7,27 @@
package syscall
func ForkExec(argv0 string, argv []string, envv []string, dir string, fd []int) (pid int, err int) {
- return -1, ENOSYS;
+ return -1, ENOSYS
}
func Exec(argv0 string, argv []string, envv []string) (err int) {
- return ENOSYS;
+ return ENOSYS
}
func Wait4(pid int, wstatus *WaitStatus, options int, rusage *Rusage) (wpid int, err error) {
- return -1, ENOSYS;
+ return -1, ENOSYS
}
+func (w WaitStatus) Exited() bool { return false }
+func (w WaitStatus) Signaled() bool { return false }
+func (w WaitStatus) Stopped() bool { return false }
+func (w WaitStatus) Continued() bool { return false }
+func (w WaitStatus) CoreDump() bool { return false }
+func (w WaitStatus) ExitStatus() int { return 0 }
+func (w WaitStatus) Signal() int { return 0 }
+func (w WaitStatus) StopSignal() int { return 0 }
+func (w WaitStatus) TrapCause() int { return 0 }
+
func raw_ptrace(request int, pid int, addr *byte, data *byte) Errno {
return ENOSYS
}