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authorRich Felker <dalias@aerifal.cx>2014-11-22 21:50:13 -0500
committerRich Felker <dalias@aerifal.cx>2014-11-22 21:50:13 -0500
commit4134c68dd4dc23ed358c8301da56225d21d655d9 (patch)
tree5b1e5a1e38ca31c4b10c6cbe3f99e6a7b9027376 /src
parent0e971b0e3f4b9c99a7ce67b10d851fc885c188d5 (diff)
downloadmusl-4134c68dd4dc23ed358c8301da56225d21d655d9.tar.gz
unify non-inline version of syscall code across archs
except powerpc, which still lacks inline syscalls simply because nobody has written the code, these are all fallbacks used to work around a clang bug that probably does not exist in versions of clang that can compile musl. however, it's useful to have the generic non-inline code anyway, as it eases the task of porting to new archs: writing inline syscall code is now optional. this approach could also help support compilers which don't understand inline asm or lack support for the needed register constraints. mips could not be unified because it has special fixup code for broken layout of the kernel's struct stat.
Diffstat (limited to 'src')
-rw-r--r--src/internal/syscall.h10
1 files changed, 10 insertions, 0 deletions
diff --git a/src/internal/syscall.h b/src/internal/syscall.h
index bb96c26e..b3fe7c01 100644
--- a/src/internal/syscall.h
+++ b/src/internal/syscall.h
@@ -24,12 +24,22 @@ long __syscall_ret(unsigned long), __syscall(syscall_arg_t, ...),
__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