diff options
Diffstat (limited to 'debian/patches/sysenter0006-optimize.patch')
| -rw-r--r-- | debian/patches/sysenter0006-optimize.patch | 31 |
1 files changed, 31 insertions, 0 deletions
diff --git a/debian/patches/sysenter0006-optimize.patch b/debian/patches/sysenter0006-optimize.patch new file mode 100644 index 0000000..afdac79 --- /dev/null +++ b/debian/patches/sysenter0006-optimize.patch @@ -0,0 +1,31 @@ +From 936cfa5a59ef5e9b1c58ab3d06626ba791b17be7 Mon Sep 17 00:00:00 2001 +From: Justus Winter <4winter@informatik.uni-hamburg.de> +Date: Mon, 4 May 2015 02:14:49 +0200 +Subject: [PATCH gnumach 06/10] optimize + +--- + i386/i386/locore.S | 7 +++---- + 1 file changed, 3 insertions(+), 4 deletions(-) + +diff --git a/i386/i386/locore.S b/i386/i386/locore.S +index ed51cb8..99fbfb6 100644 +--- a/i386/i386/locore.S ++++ b/i386/i386/locore.S +@@ -1279,11 +1279,10 @@ ENTRY(sysenter_entry) + movl %ebx, %ecx + or $(KERNEL_STACK_SIZE-1),%ecx + movl -3-IKS_SIZE(%ecx), %esp /* switch to PCB stack */ +- addl $(ISS_SIZE - 16), %esp /* point to top of structure */ //XXX: magic 16 b/c of vm86 ++ addl $(ISS_SIZE - 16 /* vm86 */ - 6 * 4 /* unused */), %esp ++ /* point to trap number */ + +- /* Create trap save area. */ +- subl $(6 * 4), %esp /* Unused. We save the +- arguments in userspace. */ ++ /* Populate trap save area. */ + pushl $0x7fffffff /* trap number */ + pushl $0x12345678 /* unused */ + pushl SE_STACK_POINTER(%ebp) /* ecx */ +-- +2.1.4 + |