diff options
| author | wdenk <wdenk> | 2003-07-24 23:38:38 +0000 |
|---|---|---|
| committer | wdenk <wdenk> | 2003-07-24 23:38:38 +0000 |
| commit | 27b207fd0a0941b03f27e2a82c0468b1a090c745 (patch) | |
| tree | 4d339d7a2a00889f09a876425ce430be57de56e9 /cpu/i386/interrupts.c | |
| parent | 2535d60277cc295adf75cd5721dcecd840c69a63 (diff) | |
| download | u-boot-imx-27b207fd0a0941b03f27e2a82c0468b1a090c745.zip u-boot-imx-27b207fd0a0941b03f27e2a82c0468b1a090c745.tar.gz u-boot-imx-27b207fd0a0941b03f27e2a82c0468b1a090c745.tar.bz2 | |
* 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.c | 27 |
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 */ |