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authorwdenk <wdenk>2003-07-24 23:38:38 +0000
committerwdenk <wdenk>2003-07-24 23:38:38 +0000
commit27b207fd0a0941b03f27e2a82c0468b1a090c745 (patch)
tree4d339d7a2a00889f09a876425ce430be57de56e9 /cpu/i386/interrupts.c
parent2535d60277cc295adf75cd5721dcecd840c69a63 (diff)
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* Implement new mechanism to export U-Boot's functions to standalone
applications: instead of using (PPC-specific) system calls we now use a jump table; please see doc/README.standalone for details * Patch by Dave Westwood, 24 Jul 2003: added support for Unity OS (a proprietary OS)
Diffstat (limited to 'cpu/i386/interrupts.c')
-rw-r--r--cpu/i386/interrupts.c27
1 files changed, 0 insertions, 27 deletions
diff --git a/cpu/i386/interrupts.c b/cpu/i386/interrupts.c
index 84825ae..f340119 100644
--- a/cpu/i386/interrupts.c
+++ b/cpu/i386/interrupts.c
@@ -22,7 +22,6 @@
*/
#include <common.h>
-#include <syscall.h>
#include <malloc.h>
#include <asm/io.h>
#include <asm/i8259.h>
@@ -58,31 +57,6 @@ typedef struct {
static irq_desc_t irq_table[MAX_IRQ];
-
-asm(".globl syscall_entry\n" \
- "syscall_entry:\n" \
- "popl %ebx\n" /* throw away the return address, flags */ \
- "popl %ebx\n" /* and segment that the INT instruction pushed */ \
- "popl %ebx\n" /* on to the stack */ \
- "movl %eax, %ecx\n" /* load the syscall nr argument*/ \
- "movl syscall_tbl, %eax\n" /* load start of syscall table */ \
- "cmpl $(11-1), %ecx\n" /* FixMe: find a way to use NR_SYSCALLS macro here */ \
- "ja bad_syscall\n" \
- "movl (%eax, %ecx, 4), %eax\n" /* load the handler of the syscall*/ \
- "test %eax, %eax\n" /* test for null */ \
- "je bad_syscall\n" \
- "popl %ecx\n" \
- "popl %ebx\n" \
- "sti \n" \
- "jmp *%eax\n" \
-"bad_syscall: movl $0xffffffff, %eax\n" \
- "popl %ecx\n" \
- "popl %ebx\n" \
- "ret");
-
-void __attribute__ ((regparm(0))) syscall_entry(void);
-
-
asm ("irq_return:\n"
" addl $4, %esp\n"
" popa\n"
@@ -483,7 +457,6 @@ int interrupt_init(void)
set_vector(0x2e, irq_14);
set_vector(0x2f, irq_15);
/* vectors 0x30-0x3f are reserved for irq 16-31 */
- set_vector(0x40, syscall_entry);
/* Mask all interrupts */