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* [newlib-cygwin] newlib/configure.host: Turn off sti/cli for i386 setjmp for i386-rtems*
@ 2016-03-22 14:45 Joel Sherrill
  0 siblings, 0 replies; 2+ messages in thread
From: Joel Sherrill @ 2016-03-22 14:45 UTC (permalink / raw)
  To: newlib-cvs

https://sourceware.org/git/gitweb.cgi?p=newlib-cygwin.git;h=4db48d17ebac131585d036ccf11eec935e4cc126

commit 4db48d17ebac131585d036ccf11eec935e4cc126
Author: Joel Sherrill <joel@rtems.org>
Date:   Thu Feb 25 11:43:18 2016 -0600

    newlib/configure.host: Turn off sti/cli for i386 setjmp for i386-rtems*
    
    When running RTEMS paravirtualized in user space, the cli/sti instructions
    can't be used. But I can't see why they are needed in either user or
    supervisor state. Turning the use of them off for RTEMS.
    
    This code is unmodified since the beginning of the repository, so I have
    no insight into why it was done. I may even have been the one to add them.
    Absolutely no idea except they aren't necessary.

Diff:
---
 newlib/configure.host | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/newlib/configure.host b/newlib/configure.host
index baaaa7e..8b0846e 100644
--- a/newlib/configure.host
+++ b/newlib/configure.host
@@ -592,6 +592,8 @@ case "${host}" in
 	newlib_cflags="${newlib_cflags} -DMALLOC_PROVIDED -DEXIT_PROVIDED -DSIGNAL_PROVIDED -DREENTRANT_SYSCALLS_PROVIDED -DHAVE_NANOSLEEP -DHAVE_BLKSIZE -DHAVE_FCNTL -DHAVE_ASSERT_FUNC"
         # turn off unsupported items in posix directory 
 	newlib_cflags="${newlib_cflags} -D_NO_GETLOGIN -D_NO_GETPWENT -D_NO_GETUT -D_NO_GETPASS -D_NO_SIGSET -D_NO_WORDEXP -D_NO_POPEN -D_NO_POSIX_SPAWN"
+        # turn off using cli/sti in i386 setjmp/longjmp
+	newlib_cflags="${newlib_cflags} -D_I386MACH_ALLOW_HW_INTERRUPTS"
 	;;
 # VxWorks supplies its own version of malloc, and the newlib one
 # doesn't work because VxWorks does not have sbrk.


^ permalink raw reply	[flat|nested] 2+ messages in thread

* [newlib-cygwin] newlib/configure.host: Turn off sti/cli for i386 setjmp for i386-rtems*
@ 2016-02-26 15:55 Joel Sherrill
  0 siblings, 0 replies; 2+ messages in thread
From: Joel Sherrill @ 2016-02-26 15:55 UTC (permalink / raw)
  To: newlib-cvs

https://sourceware.org/git/gitweb.cgi?p=newlib-cygwin.git;h=678f774727527b0d398052ee4dcbcbcf72327910

commit 678f774727527b0d398052ee4dcbcbcf72327910
Author: Joel Sherrill <joel@rtems.org>
Date:   Thu Feb 25 11:43:18 2016 -0600

    newlib/configure.host: Turn off sti/cli for i386 setjmp for i386-rtems*

Diff:
---
 newlib/configure.host | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/newlib/configure.host b/newlib/configure.host
index 5fa37d4..f6abb5c 100644
--- a/newlib/configure.host
+++ b/newlib/configure.host
@@ -592,6 +592,8 @@ case "${host}" in
 	newlib_cflags="${newlib_cflags} -DMALLOC_PROVIDED -DEXIT_PROVIDED -DSIGNAL_PROVIDED -DREENTRANT_SYSCALLS_PROVIDED -DHAVE_NANOSLEEP -DHAVE_BLKSIZE -DHAVE_FCNTL -DHAVE_ASSERT_FUNC"
         # turn off unsupported items in posix directory 
 	newlib_cflags="${newlib_cflags} -D_NO_GETLOGIN -D_NO_GETPWENT -D_NO_GETUT -D_NO_GETPASS -D_NO_SIGSET -D_NO_WORDEXP -D_NO_POPEN -D_NO_POSIX_SPAWN"
+        # turn off using cli/sti in i386 setjmp/longjmp
+	newlib_cflags="${newlib_cflags} -D_I386MACH_ALLOW_HW_INTERRUPTS"
 	;;
 # VxWorks supplies its own version of malloc, and the newlib one
 # doesn't work because VxWorks does not have sbrk.


^ permalink raw reply	[flat|nested] 2+ messages in thread

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