1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
|
/*
* Assembler macros for Meta.
*
* Licensed under LGPL v2.1 or later, see the file COPYING.LIB in this tarball.
*/
#include <common/sysdep.h>
#include <features.h>
#include <libc-internal.h>
#ifdef __ASSEMBLER__
#ifdef SHARED
#define PLTJMP(_x) _x##@PLT
#else
#define PLTJMP(_x) _x
#endif
#undef PSEUDO_END
#define PSEUDO_END(name) \
SYSCALL_ERROR_HANDLER \
END (name)
#if defined NOT_IN_libc
# define SYSCALL_ERROR __local_syscall_error
# ifdef RTLD_PRIVATE_ERRNO
# define SYSCALL_ERROR_HANDLER \
__local_syscall_error: \
NEG D0Re0, D0Re0; \
ADDT D1Re0, CPC1, #HI(_rtld_errno); \
ADD D1Re0, D1Re0, #LO(_rtld_errno) + 4; \
SETD [D1Re0], D0Re0; \
NEG D0Re0, #0x1; \
MOV PC, D1RtP;
# else
# define SYSCALL_ERROR_HANDLER \
__local_syscall_error: \
MOV D1Re0, D1RtP; \
SETL [A0StP++], D0Re0, D1Re0; \
CALLR D1RtP, PLTJMP(___errno_location); \
GETD D1Re0, [A0StP+#-8]; \
NEG D1Re0, D1Re0; \
SETD [D0Re0], D1Re0; \
NEG D0Re0, #0x1; \
GETD D1RtP, [A0StP+#-4]; \
SUB A0StP, A0StP, #0x8; \
MOV PC, D1RtP;
# endif
#else
# define SYSCALL_ERROR_HANDLER /* Nothing here; code in sysdep.S is used. */
# define SYSCALL_ERROR ___syscall_error
#endif
#endif /* __ASSEMBLER __*/
/* Pointer mangling is not yet supported for META. */
#define PTR_MANGLE(var) (void) (var)
#define PTR_DEMANGLE(var) (void) (var)
|