Changeset 8d25b44 in mainline for arch/amd64/src/asm_utils.S

Timestamp:

2006-03-20T10:51:57Z (19 years ago)

Author:

Ondrej Palkovsky <ondrap@…>

Branches:

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

Children:

1b109cb

Parents:

ad64a2d

Message:

Allowed saving less registers.

File:

• arch/amd64/src/asm_utils.S (modified) (5 diffs)

arch/amd64/src/asm_utils.S

@@ -122 +122 @@
 # Push all general purpose registers on stack except %rbp, %rsp
 .macro save_all_gpr
-        movq %rbp, IOFFSET_RBP(%rsp)
         movq %rax, IOFFSET_RAX(%rsp)
-        movq %rbx, IOFFSET_RBX(%rsp)
         movq %rcx, IOFFSET_RCX(%rsp)
         movq %rdx, IOFFSET_RDX(%rsp)
@@ -133 +131 @@
         movq %r10, IOFFSET_R10(%rsp)
         movq %r11, IOFFSET_R11(%rsp)
+#ifdef CONFIG_DEBUG_ALLREGS     
+        movq %rbx, IOFFSET_RBX(%rsp)
+        movq %rbp, IOFFSET_RBP(%rsp)
         movq %r12, IOFFSET_R12(%rsp)
         movq %r13, IOFFSET_R13(%rsp)
         movq %r14, IOFFSET_R14(%rsp)
         movq %r15, IOFFSET_R15(%rsp)
+#endif
 .endm
 
 .macro restore_all_gpr
-        movq IOFFSET_RBP(%rsp), %rbp
         movq IOFFSET_RAX(%rsp), %rax
-        movq IOFFSET_RBX(%rsp), %rbx
         movq IOFFSET_RCX(%rsp), %rcx
         movq IOFFSET_RDX(%rsp), %rdx
@@ -151 +151 @@
         movq IOFFSET_R10(%rsp), %r10
         movq IOFFSET_R11(%rsp), %r11
+#ifdef CONFIG_DEBUG_ALLREGS     
+        movq IOFFSET_RBX(%rsp), %rbx
+        movq IOFFSET_RBP(%rsp), %rbp
         movq IOFFSET_R12(%rsp), %r12
         movq IOFFSET_R13(%rsp), %r13
         movq IOFFSET_R14(%rsp), %r14
         movq IOFFSET_R15(%rsp), %r15
+#endif
 .endm
 
+#ifdef CONFIG_DEBUG_ALLREGS
+# define INTERRUPT_ALIGN 256
+#else
+# define INTERRUPT_ALIGN 128
+#endif
+        
 ## Declare interrupt handlers
 #
@@ -181 +191 @@
                          */
                         subq $IREGISTER_SPACE, %rsp
-                        nop
-                        nop
-                        nop
                 .else
                         /*
@@ -208 +215 @@
         iretq
 
+        .align INTERRUPT_ALIGN
         .if (\n-\i)-1
         handler "(\i+1)",\n
         .endif
 .endm
-        
+
+.align INTERRUPT_ALIGN
 interrupt_handlers:
 h_start: