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RISC-V: Moved syscalls to separate files to fix aliasing problems.

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This commit is contained in:
Jim Wilson
2017-12-26 12:27:52 -08:00
parent 347b083911
commit 28d5b98038
37 changed files with 513 additions and 450 deletions
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27
libgloss/riscv/machine/syscall.h
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@ -54,31 +54,4 @@
#define SYS_time 1062
#define SYS_getmainvars 2011
extern long __syscall_error(long);
static inline long
__internal_syscall(long n, long _a0, long _a1, long _a2, long _a3, long _a4, long _a5)
{
register long a0 asm("a0") = _a0;
register long a1 asm("a1") = _a1;
register long a2 asm("a2") = _a2;
register long a3 asm("a3") = _a3;
register long a4 asm("a4") = _a4;
register long a5 asm("a5") = _a5;
#ifdef __riscv_32e
register long syscall_id asm("t0") = n;
#else
register long syscall_id asm("a7") = n;
#endif
asm volatile ("scall"
: "+r"(a0) : "r"(a1), "r"(a2), "r"(a3), "r"(a4), "r"(a5), "r"(syscall_id));
if (a0 < 0)
return __syscall_error (a0);
else
return a0;
}
#endif