malloc: fix an over-allocation bug

[musl] / src / internal / syscall.h

diff --git a/src/internal/syscall.h b/src/internal/syscall.h
index b3fe7c0..6d378a8 100644 (file)
--- a/src/internal/syscall.h
+++ b/src/internal/syscall.h
@@ -12,14 +12,16 @@
 #define SYSCALL_MMAP2_UNIT 4096ULL
 #endif
 
+#ifndef __SYSCALL_LL_PRW
+#define __SYSCALL_LL_PRW(x) __SYSCALL_LL_O(x)
+#endif
+
 #ifndef __scc
 #define __scc(X) ((long) (X))
 typedef long syscall_arg_t;
 #endif
 
-#if defined(__PIC__) && (100*__GNUC__+__GNUC_MINOR__ >= 303)
 __attribute__((visibility("hidden")))
-#endif
 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);
@@ -65,7 +67,7 @@ long __syscall_ret(unsigned long), __syscall(syscall_arg_t, ...),
 #define __syscall_cp(...) __SYSCALL_DISP(__syscall_cp,__VA_ARGS__)
 #define syscall_cp(...) __syscall_ret(__syscall_cp(__VA_ARGS__))
 
-#ifdef SYS_socket
+#ifndef SYSCALL_USE_SOCKETCALL
 #define __socketcall(nm,a,b,c,d,e,f) syscall(SYS_##nm, a, b, c, d, e, f)
 #define __socketcall_cp(nm,a,b,c,d,e,f) syscall_cp(SYS_##nm, a, b, c, d, e, f)
 #else
@@ -191,6 +193,9 @@ long __syscall_ret(unsigned long), __syscall(syscall_arg_t, ...),
 #ifdef SYS_fadvise64_64
 #undef SYS_fadvise
 #define SYS_fadvise SYS_fadvise64_64
+#elif defined(SYS_fadvise64)
+#undef SYS_fadvise
+#define SYS_fadvise SYS_fadvise64
 #endif
 
 #ifdef SYS_sendfile64