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os_readdir() now using utcb as dirent buffer.

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This commit is contained in:
Bahadir Balban
2008-04-13 16:32:34 +01:00
parent 2efffdfa88
commit 7b2f9f96cf
11 changed files with 46 additions and 21 deletions
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22
tasks/libl4/include/l4lib/arch-arm/utcb.h
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@@ -9,6 +9,9 @@
#include <l4lib/types.h>
#include <l4/macros.h>
#include INC_GLUE(message.h)
#include INC_GLUE(memory.h)
#include <string.h>
#include <stdio.h>
/*
* NOTE: In syslib.h the first few mrs are used by data frequently
@@ -43,6 +46,25 @@ static inline void write_mr(unsigned int offset, unsigned int val)
{
l4_get_utcb()->mr[offset] = val;
}
/*
* Arguments that are too large to fit in message registers are
* copied onto another area that is still on the utcb, and the servers
* map-in the task utcb and read those arguments from there.
*/
static inline void copy_to_utcb(void *arg, int offset, int size)
{
BUG_ON(size > PAGE_SIZE);
memcpy(utcb_page, arg, size);
}
static inline void copy_from_utcb(void *buf, int offset, int size)
{
BUG_ON(size > PAGE_SIZE);
memcpy(buf, utcb_page + offset, size);
}
#endif /* !__ASSEMBLY__ */
#endif /* __ARM_UTCB_H__ */