mirror of
git://git.musl-libc.org/musl
synced 2025-01-09 16:19:50 +00:00
01d9fe4d9f
These are mostly copied from riscv64. _Addr and _Reg had to become int to match compiler-controlled parts of the ABI (result type of sizeof, etc.). There is no kernel stat struct; the userspace stat matches glibc in the sizes and offsets of all fields (including glibc's __dev_t __pad1). The jump buffer is 12 words larger to account for 12 saved double-precision floats; additionally it should be 64-bit aligned to save doubles. The syscall list was significantly revised by deleting all time32 and pre-statx syscalls, and renaming several syscalls that have different names depending on __BITS_PER_LONG, notably mmap2 and _llseek. futex was added as an alias to futex_time64 since it is widely used by software which does not pass time arguments.
81 lines
2.3 KiB
C
81 lines
2.3 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 __asm_syscall(...) \
|
|
__asm__ __volatile__ ("ecall\n\t" \
|
|
: "=r"(a0) : __VA_ARGS__ : "memory"); \
|
|
return a0; \
|
|
|
|
static inline long __syscall0(long n)
|
|
{
|
|
register long a7 __asm__("a7") = n;
|
|
register long a0 __asm__("a0");
|
|
__asm_syscall("r"(a7))
|
|
}
|
|
|
|
static inline long __syscall1(long n, long a)
|
|
{
|
|
register long a7 __asm__("a7") = n;
|
|
register long a0 __asm__("a0") = a;
|
|
__asm_syscall("r"(a7), "0"(a0))
|
|
}
|
|
|
|
static inline long __syscall2(long n, long a, long b)
|
|
{
|
|
register long a7 __asm__("a7") = n;
|
|
register long a0 __asm__("a0") = a;
|
|
register long a1 __asm__("a1") = b;
|
|
__asm_syscall("r"(a7), "0"(a0), "r"(a1))
|
|
}
|
|
|
|
static inline long __syscall3(long n, long a, long b, long c)
|
|
{
|
|
register long a7 __asm__("a7") = n;
|
|
register long a0 __asm__("a0") = a;
|
|
register long a1 __asm__("a1") = b;
|
|
register long a2 __asm__("a2") = c;
|
|
__asm_syscall("r"(a7), "0"(a0), "r"(a1), "r"(a2))
|
|
}
|
|
|
|
static inline long __syscall4(long n, long a, long b, long c, long d)
|
|
{
|
|
register long a7 __asm__("a7") = n;
|
|
register long a0 __asm__("a0") = a;
|
|
register long a1 __asm__("a1") = b;
|
|
register long a2 __asm__("a2") = c;
|
|
register long a3 __asm__("a3") = d;
|
|
__asm_syscall("r"(a7), "0"(a0), "r"(a1), "r"(a2), "r"(a3))
|
|
}
|
|
|
|
static inline long __syscall5(long n, long a, long b, long c, long d, long e)
|
|
{
|
|
register long a7 __asm__("a7") = n;
|
|
register long a0 __asm__("a0") = a;
|
|
register long a1 __asm__("a1") = b;
|
|
register long a2 __asm__("a2") = c;
|
|
register long a3 __asm__("a3") = d;
|
|
register long a4 __asm__("a4") = e;
|
|
__asm_syscall("r"(a7), "0"(a0), "r"(a1), "r"(a2), "r"(a3), "r"(a4))
|
|
}
|
|
|
|
static inline long __syscall6(long n, long a, long b, long c, long d, long e, long f)
|
|
{
|
|
register long a7 __asm__("a7") = n;
|
|
register long a0 __asm__("a0") = a;
|
|
register long a1 __asm__("a1") = b;
|
|
register long a2 __asm__("a2") = c;
|
|
register long a3 __asm__("a3") = d;
|
|
register long a4 __asm__("a4") = e;
|
|
register long a5 __asm__("a5") = f;
|
|
__asm_syscall("r"(a7), "0"(a0), "r"(a1), "r"(a2), "r"(a3), "r"(a4), "r"(a5))
|
|
}
|
|
|
|
#define VDSO_USEFUL
|
|
/* We don't have a clock_gettime function.
|
|
#define VDSO_CGT_SYM "__vdso_clock_gettime"
|
|
#define VDSO_CGT_VER "LINUX_2.6" */
|
|
|
|
#define IPC_64 0
|