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| author | Rich Felker <dalias@aerifal.cx> | 2019-04-10 20:11:19 -0400 |
|---|---|---|
| committer | Rich Felker <dalias@aerifal.cx> | 2019-04-10 20:11:19 -0400 |
| commit | 788d5e24ca19c6291cebd8d1ad5b5ed6abf42665 (patch) | |
| tree | 1ae614424b48069950baec8ae09699d750fe3414 /src/internal/syscall.h | |
| parent | 1bcdaeee6e659f1d856717c9aa562a068f2f3bd4 (diff) | |
| download | musl-788d5e24ca19c6291cebd8d1ad5b5ed6abf42665.tar.gz | |
remove external __syscall function and last remaining users
the weak version of __syscall_cp_c was using a tail call to __syscall
to avoid duplicating the 6-argument syscall code inline in small
static-linked programs, but now that __syscall no longer exists, the
inline expansion is no longer duplication.
the syscall.h machinery suppported up to 7 syscall arguments, only via
an external __syscall function, but we presently have no syscall call
points that actually make use of that many, and the kernel only
defines 7-argument calling conventions for arm, powerpc (32-bit), and
sh. if it turns out we need them in the future, they can easily be
added.
Diffstat (limited to 'src/internal/syscall.h')
| -rw-r--r-- | src/internal/syscall.h | 13 |
1 files changed, 1 insertions, 12 deletions
diff --git a/src/internal/syscall.h b/src/internal/syscall.h index 06c5527f..2e810db0 100644 --- a/src/internal/syscall.h +++ b/src/internal/syscall.h @@ -22,27 +22,16 @@ typedef long syscall_arg_t; #endif -hidden long __syscall_ret(unsigned long), __syscall(syscall_arg_t, ...), +hidden long __syscall_ret(unsigned long), __syscall_cp(syscall_arg_t, syscall_arg_t, syscall_arg_t, syscall_arg_t, syscall_arg_t, syscall_arg_t, syscall_arg_t); -#ifdef SYSCALL_NO_INLINE -#define __syscall0(n) (__syscall)(n) -#define __syscall1(n,a) (__syscall)(n,__scc(a)) -#define __syscall2(n,a,b) (__syscall)(n,__scc(a),__scc(b)) -#define __syscall3(n,a,b,c) (__syscall)(n,__scc(a),__scc(b),__scc(c)) -#define __syscall4(n,a,b,c,d) (__syscall)(n,__scc(a),__scc(b),__scc(c),__scc(d)) -#define __syscall5(n,a,b,c,d,e) (__syscall)(n,__scc(a),__scc(b),__scc(c),__scc(d),__scc(e)) -#define __syscall6(n,a,b,c,d,e,f) (__syscall)(n,__scc(a),__scc(b),__scc(c),__scc(d),__scc(e),__scc(f)) -#else #define __syscall1(n,a) __syscall1(n,__scc(a)) #define __syscall2(n,a,b) __syscall2(n,__scc(a),__scc(b)) #define __syscall3(n,a,b,c) __syscall3(n,__scc(a),__scc(b),__scc(c)) #define __syscall4(n,a,b,c,d) __syscall4(n,__scc(a),__scc(b),__scc(c),__scc(d)) #define __syscall5(n,a,b,c,d,e) __syscall5(n,__scc(a),__scc(b),__scc(c),__scc(d),__scc(e)) #define __syscall6(n,a,b,c,d,e,f) __syscall6(n,__scc(a),__scc(b),__scc(c),__scc(d),__scc(e),__scc(f)) -#endif -#define __syscall7(n,a,b,c,d,e,f,g) (__syscall)(n,__scc(a),__scc(b),__scc(c),__scc(d),__scc(e),__scc(f),__scc(g)) #define __SYSCALL_NARGS_X(a,b,c,d,e,f,g,h,n,...) n #define __SYSCALL_NARGS(...) __SYSCALL_NARGS_X(__VA_ARGS__,7,6,5,4,3,2,1,0,) |