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authorJoel Stanley <joel@jms.id.au>2017-12-06 12:26:21 +1030
committerWaldemar Brodkorb <wbx@openadk.org>2017-12-10 19:36:45 +0100
commitf764bcffed69d8c62625dc4b6c1a6af21bd6dbc2 (patch)
tree31bf056e4035b87d8f4317b82a651214f5bb92a9 /libc/sysdeps/linux/README
parent7c36bcae09d66bbaa35cbb02253ae0556f42677e (diff)
or1k: syscall: Pass arguments on the stack
Busybox internally calls syscall(2). - in unistd.h defined something like int syscall(nr, ....) - in syscall.c (common) implemented as int syscall(nr, arg1, arg3, arg3, arg4, arg5, arg6) This will not work, busybox thinks syscall should have varargs calling conventions. But it doesnt in the uclibc implementation so no args go through. Most architectures this will work. But on openrisc varargs are all sent on the stack. Regular args are passed in registers. Commit message and idea from Stafford Horne <shorne@gmail.com>. Signed-off-by: Joel Stanley <joel@jms.id.au>
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