work around negated error code bug on some mips kernels

[musl] / arch / mips / syscall_arch.h

diff --git a/arch/mips/syscall_arch.h b/arch/mips/syscall_arch.h
index 4286f00..380a94b 100644 (file)
--- a/arch/mips/syscall_arch.h
+++ b/arch/mips/syscall_arch.h
@@ -24,7 +24,7 @@ static inline long __syscall0(long n)
                : "=&r"(r2), "=r"(r7)
                : "ir"(n), "0"(r2)
                : SYSCALL_CLOBBERLIST, "$8", "$9", "$10");
-       return r7 ? -r2 : r2;
+       return r7 && r2>0 ? -r2 : r2;
 }
 
 static inline long __syscall1(long n, long a)
@@ -37,7 +37,7 @@ static inline long __syscall1(long n, long a)
                : "=&r"(r2), "=r"(r7)
                : "ir"(n), "0"(r2), "r"(r4)
                : SYSCALL_CLOBBERLIST, "$8", "$9", "$10");
-       return r7 ? -r2 : r2;
+       return r7 && r2>0 ? -r2 : r2;
 }
 
 static inline long __syscall2(long n, long a, long b)
@@ -51,7 +51,7 @@ static inline long __syscall2(long n, long a, long b)
                : "=&r"(r2), "=r"(r7)
                : "ir"(n), "0"(r2), "r"(r4), "r"(r5)
                : SYSCALL_CLOBBERLIST, "$8", "$9", "$10");
-       return r7 ? -r2 : r2;
+       return r7 && r2>0 ? -r2 : r2;
 }
 
 static inline long __syscall3(long n, long a, long b, long c)
@@ -66,7 +66,7 @@ static inline long __syscall3(long n, long a, long b, long c)
                : "=&r"(r2), "=r"(r7)
                : "ir"(n), "0"(r2), "r"(r4), "r"(r5), "r"(r6)
                : SYSCALL_CLOBBERLIST, "$8", "$9", "$10");
-       return r7 ? -r2 : r2;
+       return r7 && r2>0 ? -r2 : r2;
 }
 
 static inline long __syscall4(long n, long a, long b, long c, long d)
@@ -81,7 +81,7 @@ static inline long __syscall4(long n, long a, long b, long c, long d)
                : "=&r"(r2), "+r"(r7)
                : "ir"(n), "0"(r2), "r"(r4), "r"(r5), "r"(r6)
                : SYSCALL_CLOBBERLIST, "$8", "$9", "$10");
-       return r7 ? -r2 : r2;
+       return r7 && r2>0 ? -r2 : r2;
 }
 
 static inline long __syscall5(long n, long a, long b, long c, long d, long e)
@@ -99,7 +99,7 @@ static inline long __syscall5(long n, long a, long b, long c, long d, long e)
                : "=&r"(r2), "+r"(r7), "+r"(r8)
                : "ir"(n), "0"(r2), "r"(r4), "r"(r5), "r"(r6)
                : SYSCALL_CLOBBERLIST, "$9", "$10");
-       return r7 ? -r2 : r2;
+       return r7 && r2>0 ? -r2 : r2;
 }
 
 static inline long __syscall6(long n, long a, long b, long c, long d, long e, long f)
@@ -118,7 +118,7 @@ static inline long __syscall6(long n, long a, long b, long c, long d, long e, lo
                : "=&r"(r2), "+r"(r7), "+r"(r8), "+r"(r9)
                : "ir"(n), "0"(r2), "r"(r4), "r"(r5), "r"(r6)
                : SYSCALL_CLOBBERLIST, "$10");
-       return r7 ? -r2 : r2;
+       return r7 && r2>0 ? -r2 : r2;
 }
 
 static inline long __syscall7(long n, long a, long b, long c, long d, long e, long f, long g)
@@ -138,7 +138,7 @@ static inline long __syscall7(long n, long a, long b, long c, long d, long e, lo
                : "=&r"(r2), "+r"(r7), "+r"(r8), "+r"(r9), "+r"(r10)
                : "ir"(n), "0"(r2), "r"(r4), "r"(r5), "r"(r6)
                : SYSCALL_CLOBBERLIST);
-       return r7 ? -r2 : r2;
+       return r7 && r2>0 ? -r2 : r2;
 }
 
 #define VDSO_USEFUL