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Unified Diff: fusl/arch/i386/syscall_arch.h

Issue 1573973002: Add a "fork" of musl as //fusl. (Closed) Base URL: https://github.com/domokit/mojo.git@master
Patch Set: Created 4 years, 11 months ago
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Index: fusl/arch/i386/syscall_arch.h
diff --git a/fusl/arch/i386/syscall_arch.h b/fusl/arch/i386/syscall_arch.h
new file mode 100644
index 0000000000000000000000000000000000000000..ca0ea7fb79d63963c95ab13d946df595ff994ec2
--- /dev/null
+++ b/fusl/arch/i386/syscall_arch.h
@@ -0,0 +1,57 @@
+#define __SYSCALL_LL_E(x) \
+((union { long long ll; long l[2]; }){ .ll = x }).l[0], \
+((union { long long ll; long l[2]; }){ .ll = x }).l[1]
+#define __SYSCALL_LL_O(x) __SYSCALL_LL_E((x))
+
+static inline long __syscall0(long n)
+{
+ unsigned long __ret;
+ __asm__ __volatile__ (".hidden __vsyscall ; call __vsyscall" : "=a"(__ret) : "a"(n) : "memory");
+ return __ret;
+}
+
+static inline long __syscall1(long n, long a1)
+{
+ unsigned long __ret;
+ __asm__ __volatile__ (".hidden __vsyscall ; call __vsyscall" : "=a"(__ret) : "a"(n), "d"(a1) : "memory");
+ return __ret;
+}
+
+static inline long __syscall2(long n, long a1, long a2)
+{
+ unsigned long __ret;
+ __asm__ __volatile__ (".hidden __vsyscall ; call __vsyscall" : "=a"(__ret) : "a"(n), "d"(a1), "c"(a2) : "memory");
+ return __ret;
+}
+
+static inline long __syscall3(long n, long a1, long a2, long a3)
+{
+ unsigned long __ret;
+ __asm__ __volatile__ (".hidden __vsyscall ; call __vsyscall" : "=a"(__ret) : "a"(n), "d"(a1), "c"(a2), "D"(a3) : "memory");
+ return __ret;
+}
+
+static inline long __syscall4(long n, long a1, long a2, long a3, long a4)
+{
+ unsigned long __ret;
+ __asm__ __volatile__ (".hidden __vsyscall ; call __vsyscall" : "=a"(__ret) : "a"(n), "d"(a1), "c"(a2), "D"(a3), "S"(a4) : "memory");
+ return __ret;
+}
+
+static inline long __syscall5(long n, long a1, long a2, long a3, long a4, long a5)
+{
+ unsigned long __ret;
+ __asm__ __volatile__ ("push %6 ; .hidden __vsyscall ; call __vsyscall ; add $4,%%esp" : "=a"(__ret) : "a"(n), "d"(a1), "c"(a2), "D"(a3), "S"(a4), "g"(a5) : "memory");
+ return __ret;
+}
+
+static inline long __syscall6(long n, long a1, long a2, long a3, long a4, long a5, long a6)
+{
+ unsigned long __ret;
+ __asm__ __volatile__ ("push %6 ; .hidden __vsyscall6 ; call __vsyscall6 ; add $4,%%esp" : "=a"(__ret) : "a"(n), "d"(a1), "c"(a2), "D"(a3), "S"(a4), "g"(0+(long[]){a5, a6}) : "memory");
+ return __ret;
+}
+
+#define VDSO_USEFUL
+#define VDSO_CGT_SYM "__vdso_clock_gettime"
+#define VDSO_CGT_VER "LINUX_2.6"
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