mirror of
git://git.musl-libc.org/musl
synced 2024-12-16 19:55:38 +00:00
2e554617e5
without this, the SIOCGSTAMP and SIOCGSTAMPNS ioctl commands, for obtaining timestamps, would stop working on pre-5.1 kernels after time_t is switched to 64-bit and their values are changed to the new time64 versions. new code is written such that it's statically unreachable on 64-bit archs, and on existing 32-bit archs until the macro values are changed to activate 64-bit time_t.
94 lines
2.9 KiB
C
94 lines
2.9 KiB
C
#define __SYSCALL_LL_E(x) \
|
|
((union { long long ll; long l[2]; }){ .ll = x }).l[0], \
|
|
((union { long long ll; long l[2]; }){ .ll = x }).l[1]
|
|
#define __SYSCALL_LL_O(x) __SYSCALL_LL_E((x))
|
|
#define __SYSCALL_LL_PRW(x) 0, __SYSCALL_LL_E((x))
|
|
|
|
/* The extra OR instructions are to work around a hardware bug:
|
|
* http://documentation.renesas.com/doc/products/mpumcu/tu/tnsh7456ae.pdf
|
|
*/
|
|
#define __asm_syscall(trapno, ...) do { \
|
|
__asm__ __volatile__ ( \
|
|
"trapa #31\n" \
|
|
"or r0, r0\n" \
|
|
"or r0, r0\n" \
|
|
"or r0, r0\n" \
|
|
"or r0, r0\n" \
|
|
"or r0, r0\n" \
|
|
: "=r"(r0) : __VA_ARGS__ : "memory"); \
|
|
return r0; \
|
|
} while (0)
|
|
|
|
static inline long __syscall0(long n)
|
|
{
|
|
register long r3 __asm__("r3") = n;
|
|
register long r0 __asm__("r0");
|
|
__asm_syscall(16, "r"(r3));
|
|
}
|
|
|
|
static inline long __syscall1(long n, long a)
|
|
{
|
|
register long r3 __asm__("r3") = n;
|
|
register long r4 __asm__("r4") = a;
|
|
register long r0 __asm__("r0");
|
|
__asm_syscall(17, "r"(r3), "r"(r4));
|
|
}
|
|
|
|
static inline long __syscall2(long n, long a, long b)
|
|
{
|
|
register long r3 __asm__("r3") = n;
|
|
register long r4 __asm__("r4") = a;
|
|
register long r5 __asm__("r5") = b;
|
|
register long r0 __asm__("r0");
|
|
__asm_syscall(18, "r"(r3), "r"(r4), "r"(r5));
|
|
}
|
|
|
|
static inline long __syscall3(long n, long a, long b, long c)
|
|
{
|
|
register long r3 __asm__("r3") = n;
|
|
register long r4 __asm__("r4") = a;
|
|
register long r5 __asm__("r5") = b;
|
|
register long r6 __asm__("r6") = c;
|
|
register long r0 __asm__("r0");
|
|
__asm_syscall(19, "r"(r3), "r"(r4), "r"(r5), "r"(r6));
|
|
}
|
|
|
|
static inline long __syscall4(long n, long a, long b, long c, long d)
|
|
{
|
|
register long r3 __asm__("r3") = n;
|
|
register long r4 __asm__("r4") = a;
|
|
register long r5 __asm__("r5") = b;
|
|
register long r6 __asm__("r6") = c;
|
|
register long r7 __asm__("r7") = d;
|
|
register long r0 __asm__("r0");
|
|
__asm_syscall(20, "r"(r3), "r"(r4), "r"(r5), "r"(r6), "r"(r7));
|
|
}
|
|
|
|
static inline long __syscall5(long n, long a, long b, long c, long d, long e)
|
|
{
|
|
register long r3 __asm__("r3") = n;
|
|
register long r4 __asm__("r4") = a;
|
|
register long r5 __asm__("r5") = b;
|
|
register long r6 __asm__("r6") = c;
|
|
register long r7 __asm__("r7") = d;
|
|
register long r0 __asm__("r0") = e;
|
|
__asm_syscall(21, "r"(r3), "r"(r4), "r"(r5), "r"(r6), "r"(r7), "0"(r0));
|
|
}
|
|
|
|
static inline long __syscall6(long n, long a, long b, long c, long d, long e, long f)
|
|
{
|
|
register long r3 __asm__("r3") = n;
|
|
register long r4 __asm__("r4") = a;
|
|
register long r5 __asm__("r5") = b;
|
|
register long r6 __asm__("r6") = c;
|
|
register long r7 __asm__("r7") = d;
|
|
register long r0 __asm__("r0") = e;
|
|
register long r1 __asm__("r1") = f;
|
|
__asm_syscall(22, "r"(r3), "r"(r4), "r"(r5), "r"(r6), "r"(r7), "0"(r0), "r"(r1));
|
|
}
|
|
|
|
#define SYSCALL_IPC_BROKEN_MODE
|
|
|
|
#define SIOCGSTAMP_OLD (2U<<30 | 's'<<8 | 100 | 8<<16)
|
|
#define SIOCGSTAMPNS_OLD (2U<<30 | 's'<<8 | 101 | 8<<16)
|