diff options
Diffstat (limited to 'serverboot/exec.c')
| -rw-r--r-- | serverboot/exec.c | 147 |
1 files changed, 0 insertions, 147 deletions
diff --git a/serverboot/exec.c b/serverboot/exec.c deleted file mode 100644 index a487fb5d..00000000 --- a/serverboot/exec.c +++ /dev/null @@ -1,147 +0,0 @@ -/* - * Mach Operating System - * Copyright (c) 1993-1989 Carnegie Mellon University - * All Rights Reserved. - * - * Permission to use, copy, modify and distribute this software and its - * documentation is hereby granted, provided that both the copyright - * notice and this permission notice appear in all copies of the - * software, derivative works or modified versions, and any portions - * thereof, and that both notices appear in supporting documentation. - * - * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS" - * CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND FOR - * ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE. - * - * Carnegie Mellon requests users of this software to return to - * - * Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU - * School of Computer Science - * Carnegie Mellon University - * Pittsburgh PA 15213-3890 - * - * any improvements or extensions that they make and grant Carnegie Mellon - * the rights to redistribute these changes. - */ -/* - * i386-specific routines for loading a.out files. - */ - -#include <mach.h> -#include <mach/machine/vm_param.h> -#include "mach-exec.h" - -#include <file_io.h> - -#ifdef i386 - -#include <mach/machine/eflags.h> - -/* - * Machine-dependent portions of execve() for the i386. - */ - -#define STACK_SIZE (64*1024) - -char *set_regs( - mach_port_t user_task, - mach_port_t user_thread, - struct exec_info *info, - int arg_size) -{ - vm_offset_t stack_start; - vm_offset_t stack_end; - struct i386_thread_state regs; - unsigned int reg_size; - - /* - * Add space for 5 ints to arguments, for - * PS program. XXX - */ - arg_size += 5 * sizeof(int); - - /* - * Allocate stack. - */ - stack_end = VM_MAX_ADDRESS; - stack_start = VM_MAX_ADDRESS - STACK_SIZE; - (void)vm_allocate(user_task, - &stack_start, - (vm_size_t)(stack_end - stack_start), - FALSE); - - reg_size = i386_THREAD_STATE_COUNT; - (void)thread_get_state(user_thread, - i386_THREAD_STATE, - (thread_state_t)®s, - ®_size); - - regs.eip = info->entry; - regs.uesp = (int)((stack_end - arg_size) & ~(sizeof(int)-1)); - - /* regs.efl |= EFL_TF; trace flag*/ - - (void)thread_set_state(user_thread, - i386_THREAD_STATE, - (thread_state_t)®s, - reg_size); - - return (char *)regs.uesp; -} - -#elif defined __alpha__ - - -/* - * Object: - * set_regs EXPORTED function - * - * Initialize enough state for a thread to run, including - * stack memory and stack pointer, and program counter. - * - */ -#define STACK_SIZE (vm_size_t)(128*1024) - -char *set_regs( - mach_port_t user_task, - mach_port_t user_thread, - struct exec_info *info, - int arg_size) -{ - vm_offset_t stack_start; - vm_offset_t stack_end; - struct alpha_thread_state regs; - - natural_t reg_size; - - /* - * Allocate stack. - */ - stack_end = VM_MAX_ADDRESS; - stack_start = stack_end - STACK_SIZE; - (void)vm_allocate(user_task, - &stack_start, - (vm_size_t)(STACK_SIZE), - FALSE); - - reg_size = ALPHA_THREAD_STATE_COUNT; - (void)thread_get_state(user_thread, - ALPHA_THREAD_STATE, - (thread_state_t)®s, - ®_size); - - regs.pc = info->entry; - regs.r29 = info->init_dp; - regs.r30 = (integer_t)((stack_end - arg_size) & ~(sizeof(integer_t)-1)); - - (void)thread_set_state(user_thread, - ALPHA_THREAD_STATE, - (thread_state_t)®s, - reg_size); - - return (char *)regs.r30; -} - -#else -# error "Not ported to this architecture!" -#endif |