Changeset 7fc78da in mainline for libc

Timestamp:

2006-03-13T20:53:02Z (20 years ago)

Author:

Ondrej Palkovsky <ondrap@…>

Branches:

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

Children:

a19bdf8

Parents:

b419162

Message:

New IPC synchronous call.
Widened syscall to support up to 5 parameters.

Location:

libc

Files:

• arch/ia32/src/syscall.c (modified) (2 diffs)
• arch/mips32/src/syscall.c (modified) (2 diffs)
• include/libc.h (modified) (1 diff)

libc/arch/ia32/src/syscall.c

@@ -29 +29 @@
 #include <libc.h>
 
-sysarg_t __syscall(const syscall_t id, const sysarg_t p1, const sysarg_t p2, const sysarg_t p3)
+sysarg_t __syscall(const sysarg_t p1, const sysarg_t p2, const sysarg_t p3, 
+                   const sysarg_t p4, const syscall_t id)
 {
         sysarg_t ret;
@@ -36 +37 @@
                 "int $0x30\n"
                 : "=a" (ret)
-                : "a" (id),
-                  "b" (p1),
-                  "c" (p2),
-                  "d" (p3)
+                : "a" (p1),
+                  "b" (p2),
+                  "c" (p3),
+                  "d" (p4),
+                  "S" (id)
         );
         

libc/arch/mips32/src/syscall.c

@@ -30 +30 @@
 
 sysarg_t __syscall(const sysarg_t p1, const sysarg_t p2, 
-                   const sysarg_t p3, const syscall_t id)
+                   const sysarg_t p3, const sysarg_t p4,
+                   const syscall_t id)
 {
         register sysarg_t __mips_reg_a0 asm("$4") = p1;
         register sysarg_t __mips_reg_a1 asm("$5") = p2;
         register sysarg_t __mips_reg_a2 asm("$6") = p3;
-        register sysarg_t __mips_reg_a3 asm("$7") = id;
+        register sysarg_t __mips_reg_a3 asm("$7") = p4;
+        register sysarg_t __mips_reg_t0 asm("$8") = id;
         register sysarg_t __mips_reg_v0 asm("$2");
         
@@ -44 +46 @@
                   "r" (__mips_reg_a1),
                   "r" (__mips_reg_a2),
-                  "r" (__mips_reg_a3)
+                  "r" (__mips_reg_a3),
+                  "r" (__mips_reg_t0)
         );
         

libc/include/libc.h

@@ -34 +34 @@
 #include <kernel/syscall/syscall.h>
 
-#define __SYSCALL0(id) __syscall(0, 0, 0, id)
-#define __SYSCALL1(id, p1) __syscall(p1, 0, 0, id)
-#define __SYSCALL2(id, p1, p2) __syscall(p1, p2, 0, id)
-#define __SYSCALL3(id, p1, p2, p3) __syscall(p1,p2,p3,id)
+#define __SYSCALL0(id) __syscall(0, 0, 0, 0, id)
+#define __SYSCALL1(id, p1) __syscall(p1, 0, 0, 0, id)
+#define __SYSCALL2(id, p1, p2) __syscall(p1, p2, 0, 0, id)
+#define __SYSCALL3(id, p1, p2, p3) __syscall(p1,p2,p3, 0, id)
+#define __SYSCALL4(id, p1, p2, p3, p4) __syscall(p1,p2,p3,p4,id)
 
 extern void __main(void);
 extern void __exit(void);
 extern sysarg_t __syscall(const sysarg_t p1, const sysarg_t p2, 
-                          const sysarg_t p3, const syscall_t id);
+                          const sysarg_t p3, const sysarg_t p4,
+                          const syscall_t id);