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author | Rich Felker <dalias@aerifal.cx> | 2014-02-27 22:03:25 -0500 |
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committer | Rich Felker <dalias@aerifal.cx> | 2014-02-27 22:03:25 -0500 |
commit | aacd348637e38795dd7ae3c7c8c908d8c0cd24fd (patch) | |
tree | 3055797eea08dafe99dcdbd1e7efabd44bcb723b /arch/sh/syscall_arch.h | |
parent | b9f7f2e8762922a1a24d41358164ebe9ae437e31 (diff) | |
download | musl-aacd348637e38795dd7ae3c7c8c908d8c0cd24fd.tar.gz musl-aacd348637e38795dd7ae3c7c8c908d8c0cd24fd.tar.bz2 musl-aacd348637e38795dd7ae3c7c8c908d8c0cd24fd.tar.xz musl-aacd348637e38795dd7ae3c7c8c908d8c0cd24fd.zip |
rename superh port to "sh" for consistency
linux, gcc, etc. all use "sh" as the name for the superh arch. there
was already some inconsistency internally in musl: the dynamic linker
was searching for "ld-musl-sh.path" as its path file despite its own
name being "ld-musl-superh.so.1". there was some sentiment in both
directions as to how to resolve the inconsistency, but overall "sh"
was favored.
Diffstat (limited to 'arch/sh/syscall_arch.h')
-rw-r--r-- | arch/sh/syscall_arch.h | 87 |
1 files changed, 87 insertions, 0 deletions
diff --git a/arch/sh/syscall_arch.h b/arch/sh/syscall_arch.h new file mode 100644 index 00000000..7ee21a56 --- /dev/null +++ b/arch/sh/syscall_arch.h @@ -0,0 +1,87 @@ +#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)) + +/* 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 #" #trapno "\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)); +} |