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2002-12-15 Roland McGrath <roland@redhat.com>

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* mem.c: Add sys_{get,set}_thread_area.
	* linux/syscall.h: Declare them.
	* linux/syscallent.h: Update the table for these.
	* linux/dummy.h (sys_modify_ldt): Define only #ifndef I386.
	(sys_get_thread_area, sys_set_thread_area): New macros #ifndef I386.
This commit is contained in:
Roland McGrath 2002-12-15 23:58:17 +00:00
parent 882eda809c
commit 34e4a6984c
1 changed files with 73 additions and 16 deletions
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89
mem.c
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@ -505,6 +505,28 @@ struct tcb *tcp;
}
#if defined(LINUX) && defined(__i386__)
static void
print_ldt_entry (ldt_entry)
struct modify_ldt_ldt_s *ldt_entry;
{
tprintf("base_addr:%#08lx, "
"limit:%d, "
"seg_32bit:%d, "
"contents:%d, "
"read_exec_only:%d, "
"limit_in_pages:%d, "
"seg_not_present:%d, "
"useable:%d}",
ldt_entry->base_addr,
ldt_entry->limit,
ldt_entry->seg_32bit,
ldt_entry->contents,
ldt_entry->read_exec_only,
ldt_entry->limit_in_pages,
ldt_entry->seg_not_present,
ldt_entry->useable);
}
int
sys_modify_ldt(tcp)
struct tcb *tcp;
@ -521,27 +543,62 @@ struct tcb *tcp;
if (!verbose(tcp))
tprintf("...}");
else {
tprintf("base_addr:%#08lx, "
"limit:%d, "
"seg_32bit:%d, "
"contents:%d, "
"read_exec_only:%d, "
"limit_in_pages:%d, "
"seg_not_present:%d, "
"useable:%d}",
copy.base_addr,
copy.limit,
copy.seg_32bit,
copy.contents,
copy.read_exec_only,
copy.limit_in_pages,
copy.seg_not_present,
copy.useable);
print_ldt_entry(&copy);
}
}
tprintf(", %lu", tcp->u_arg[2]);
}
return 0;
}
int
sys_set_thread_area(tcp)
struct tcb *tcp;
{
struct modify_ldt_ldt_s copy;
if (entering(tcp)) {
if (umove(tcp, tcp->u_arg[0], &copy) != -1) {
if (copy.entry_number == -1)
tprintf("{entry_number:%d -> ",
copy.entry_number);
else
tprintf("{entry_number:");
}
} else {
if (umove(tcp, tcp->u_arg[0], &copy) != -1) {
tprintf("%d, ", copy.entry_number);
if (!verbose(tcp))
tprintf("...}");
else {
print_ldt_entry(&copy);
}
} else {
tprintf("%lx", tcp->u_arg[0]);
}
}
return 0;
}
int
sys_get_thread_area(tcp)
struct tcb *tcp;
{
struct modify_ldt_ldt_s copy;
if (exiting(tcp)) {
if (umove(tcp, tcp->u_arg[0], &copy) != -1) {
tprintf("{entry_number:%d, ", copy.entry_number);
if (!verbose(tcp))
tprintf("...}");
else {
print_ldt_entry(&copy);
}
} else {
tprintf("%lx", tcp->u_arg[0]);
}
}
return 0;
}
#endif /* LINUX && __i386__ */