sdk: update builds on linux hosts

git-svn-id: svn://kolibrios.org@6303 a494cfbc-eb01-0410-851d-a64ba20cac60

contrib/sdk/sources/libsync/Makefile

@@ -1,6 +1,6 @@
 LIBRARY= libsync
 
-FASM = fasm.exe
+FASM = fasm
 AR = kos32-ar
 ARFLAGS = crs
 

contrib/sdk/sources/libsync/m_lock_timeout.asm

@@ -0,0 +1,68 @@
+format MS COFF
+use32
+
+MUTEX.lock      equ 0
+MUTEX.handle    equ 4
+
+section '.text' align 16 code readable executable
+
+@mutex_lock_timeout@8
+        push    esi
+        mov     esi, edx
+        push    ebx
+        mov     edx, 1
+        lock xadd [ecx+MUTEX.lock], edx
+        mov     eax, 1
+        test    edx, edx
+        jnz     .slow
+.ok:
+        pop     ebx
+        pop     esi
+        retn
+align 4
+.slow:
+        mov     edx, 2
+        xchg    edx, [ecx+MUTEX.lock]
+        xor     eax, eax
+        test    edx, edx
+        jz      .ok
+
+        mov     edx, 2
+        mov     ecx, [ecx+MUTEX.handle]
+        mov     al, 77
+        mov     ebx, edx
+        int     0x40
+        add     eax, 1
+        pop     ebx
+        pop     esi
+        ret
+
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