Changeset 4a8ed8a in mainline for libc/arch/ia64/src/syscall.c

Timestamp:

2006-03-09T12:38:00Z (19 years ago)

Author:

Jakub Jermar <jakub@…>

Branches:

lfn, master, serial, ticket/834-toolchain-update, topic/msim-upgrade, topic/simplify-dev-export

Children:

0ef54d3

Parents:

fbd6f81

Message:

ia64 work.
Changes to make userspace work (uspace part).

File:

• libc/arch/ia64/src/syscall.c (modified) (2 diffs)

libc/arch/ia64/src/syscall.c

@@ -29 +29 @@
 #include <libc.h>
 
+/**
+ * Immediate operand for break instruction.
+ * Be carefull about the value as Ski simulator
+ * is somewhat sensitive to its value.
+ *
+ * 0 will be confused with Ski breakpoint.
+ * And higher values will be confused with SSC's.
+ */
+#define SYSCALL_IMM     1
+
 sysarg_t __syscall(const syscall_t id, const sysarg_t p1, const sysarg_t p2, const sysarg_t p3)
 {
@@ -38 +48 @@
                 "mov r16 = %3\n"
                 "mov r17 = %4\n"
-                "break 0\n"
+                "break %5\n"
                 "mov %0 = r8\n"
                 : "=r" (ret)
-                : "r" (id), "r" (p1), "r" (p2), "r" (p3)
+                : "r" (id), "r" (p1), "r" (p2), "r" (p3), "i" (SYSCALL_IMM)
                 : "r8", "r14", "r15", "r16"
         );