mirror of
git://git.musl-libc.org/musl
synced 2025-01-23 23:23:41 +00:00
f76d51a1cc
it was never demonstrated to me that this workaround was needed, and seems likely that, if there ever was any clang version for which it was needed, it's old enough to be unusably buggy in other ways. if it turns out some compilers actually can't do the register allocation right, we'll need to replace this with inline shuffling code, since the external __syscall dependency is being removed.
98 lines
3.1 KiB
C
98 lines
3.1 KiB
C
#define __SYSCALL_LL_E(x) \
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((union { long long ll; long l[2]; }){ .ll = x }).l[0], \
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((union { long long ll; long l[2]; }){ .ll = x }).l[1]
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#define __SYSCALL_LL_O(x) 0, __SYSCALL_LL_E((x))
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static __inline long __syscall0(long n)
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{
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register unsigned long r12 __asm__("r12") = n;
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register unsigned long r3 __asm__("r3");
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__asm__ __volatile__ ("brki r14, 0x8" : "=r"(r3)
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: "r"(r12)
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: "memory", "r4");
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return r3;
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}
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static inline long __syscall1(long n, long a)
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{
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register unsigned long r12 __asm__("r12") = n;
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register unsigned long r3 __asm__("r3");
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register unsigned long r5 __asm__("r5") = a;
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__asm__ __volatile__ ("brki r14, 0x8" : "=r"(r3)
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: "r"(r12), "r"(r5)
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: "memory", "r4");
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return r3;
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}
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static inline long __syscall2(long n, long a, long b)
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{
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register unsigned long r12 __asm__("r12") = n;
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register unsigned long r3 __asm__("r3");
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register unsigned long r5 __asm__("r5") = a;
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register unsigned long r6 __asm__("r6") = b;
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__asm__ __volatile__ ("brki r14, 0x8" : "=r"(r3)
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: "r"(r12), "r"(r5), "r"(r6)
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: "memory", "r4");
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return r3;
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}
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static inline long __syscall3(long n, long a, long b, long c)
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{
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register unsigned long r12 __asm__("r12") = n;
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register unsigned long r3 __asm__("r3");
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register unsigned long r5 __asm__("r5") = a;
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register unsigned long r6 __asm__("r6") = b;
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register unsigned long r7 __asm__("r7") = c;
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__asm__ __volatile__ ("brki r14, 0x8" : "=r"(r3)
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: "r"(r12), "r"(r5), "r"(r6), "r"(r7)
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: "memory", "r4");
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return r3;
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}
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static inline long __syscall4(long n, long a, long b, long c, long d)
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{
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register unsigned long r12 __asm__("r12") = n;
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register unsigned long r3 __asm__("r3");
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register unsigned long r5 __asm__("r5") = a;
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register unsigned long r6 __asm__("r6") = b;
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register unsigned long r7 __asm__("r7") = c;
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register unsigned long r8 __asm__("r8") = d;
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__asm__ __volatile__ ("brki r14, 0x8" : "=r"(r3)
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: "r"(r12), "r"(r5), "r"(r6), "r"(r7), "r"(r8)
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: "memory", "r4");
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return r3;
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}
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static inline long __syscall5(long n, long a, long b, long c, long d, long e)
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{
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register unsigned long r12 __asm__("r12") = n;
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register unsigned long r3 __asm__("r3");
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register unsigned long r5 __asm__("r5") = a;
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register unsigned long r6 __asm__("r6") = b;
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register unsigned long r7 __asm__("r7") = c;
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register unsigned long r8 __asm__("r8") = d;
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register unsigned long r9 __asm__("r9") = e;
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__asm__ __volatile__ ("brki r14, 0x8" : "=r"(r3)
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: "r"(r12), "r"(r5), "r"(r6), "r"(r7), "r"(r8), "r"(r9)
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: "memory", "r4");
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return r3;
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}
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static inline long __syscall6(long n, long a, long b, long c, long d, long e, long f)
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{
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register unsigned long r12 __asm__("r12") = n;
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register unsigned long r3 __asm__("r3");
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register unsigned long r5 __asm__("r5") = a;
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register unsigned long r6 __asm__("r6") = b;
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register unsigned long r7 __asm__("r7") = c;
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register unsigned long r8 __asm__("r8") = d;
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register unsigned long r9 __asm__("r9") = e;
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register unsigned long r10 __asm__("r10") = f;
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__asm__ __volatile__ ("brki r14, 0x8" : "=r"(r3)
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: "r"(r12), "r"(r5), "r"(r6), "r"(r7), "r"(r8), "r"(r9), "r"(r10)
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: "memory", "r4");
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return r3;
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}
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#define SYSCALL_IPC_BROKEN_MODE
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