Changeset 4b2c872d in mainline for arch/ia32

Timestamp:

2005-10-18T09:33:02Z (20 years ago)

Author:

Jakub Jermar <jakub@…>

Branches:

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

Children:

8005218

Parents:

22f7769

Message:

Create generic context_save() and context_restore().
These two functions are defined inline and only call context_save_arch() and context_restore_arch(), respectively.
The main purpose of this is to enable centralized commenting of these important and tricky functions.

Location:

arch/ia32

Files:

• include/context.h (modified) (1 diff)
• src/context.s (modified) (2 diffs)

arch/ia32/include/context.h

@@ -47 +47 @@
  */
 struct context {
-        __u32 sp;
-        __u32 pc;
+        __address sp;
+        __address pc;
         __u32 ebx;
         __u32 esi;

arch/ia32/src/context.s

@@ -29 +29 @@
 .text
 
-.global context_save
-.global context_restore
+.global context_save_arch
+.global context_restore_arch
 
 
 ## Save current CPU context
 #
-# Save CPU context to the kernel_context variable
+# Save CPU context to the context_t variable
 # pointed by the 1st argument. Returns 1 in EAX.
 #
-context_save:
+context_save_arch:
         movl 0(%esp),%eax       # the caller's return %eip
         movl 4(%esp),%edx       # address of the kernel_context variable to save context to
@@ -54 +54 @@
 
 
-## Restore current CPU context
+## Restore saved CPU context
 #
-# Restore CPU context from the kernel_context variable
+# Restore CPU context from context_t variable
 # pointed by the 1st argument. Returns 0 in EAX.
 #
-context_restore:
+context_restore_arch:
         movl 4(%esp),%eax       # address of the kernel_context variable to restore context from
         movl 0(%eax),%esp       # ctx->sp -> %esp