mirror of
https://github.com/drasko/codezero.git
synced 2026-02-28 17:53:13 +01:00
Reorganized test container sources
This commit is contained in:
Bahadir Balban
@@ -32,7 +32,7 @@ linker_lds = Command('include/linker.lds', 'include/linker.lds.in', generate_lin
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container_h = Command('include/container.h', 'include/container.h.in', generate_container_h)
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src = [Glob('*.[cS]') + Glob('src/*.[cS]')]
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src = [Glob('*.[cS]') + Glob('src/*.[cS]') + Glob('src/arch/*.[cS]')]
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env.Append(LINKFLAGS = ['-T' + linker_lds[0].path, '-u_start'])
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env.Append(CPPPATH = [CONTAINER_INCLUDE])
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@@ -1,13 +0,0 @@
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/*
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* Autogenerated hello world print function
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*/
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#include <stdio.h>
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#include <container.h>
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int print_hello_world(void)
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{
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printf("%s: Hello world from %s!\n", __CONTAINER__, __CONTAINER_NAME__);
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return 0;
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}
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14
conts/test/include/capability.h
Normal file
14
conts/test/include/capability.h
Normal file
@@ -0,0 +1,14 @@
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#ifndef __CAPABILITY_H__
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#define __CAPABILITY_H__
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#include <l4/api/capability.h>
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#include <l4/generic/capability.h>
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#include <l4/generic/cap-types.h>
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void print_capability(struct capability *cap);
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int read_pager_capabilities();
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#endif /* __CAPABILITY_H__ */
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7
conts/test/include/tests.h
Normal file
7
conts/test/include/tests.h
Normal file
@@ -0,0 +1,7 @@
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#ifndef __TESTS_H__
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#define __TESTS_H__
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int capability_test(void);
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#endif /* __TESTS_H__ */
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18
conts/test/include/thread.h
Normal file
18
conts/test/include/thread.h
Normal file
@@ -0,0 +1,18 @@
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#ifndef __THREAD_H__
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#define __THREAD_H__
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#include <l4lib/arch/syslib.h>
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#include <l4lib/arch/syscalls.h>
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#include <l4lib/exregs.h>
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#include <l4/api/thread.h>
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int thread_create(int (*func)(void *), void *args, unsigned int flags,
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struct task_ids *new_ids);
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/* For same space */
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#define STACK_SIZE 0x1000
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#define THREADS_TOTAL 10
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#endif /* __THREAD_H__ */
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@@ -1,342 +1,20 @@
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/*
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* Main function for this container
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* Main function for all tests
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*/
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#include <l4lib/arch/syslib.h>
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#include <l4lib/arch/syscalls.h>
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#include <l4lib/exregs.h>
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#include <l4lib/init.h>
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#include <l4/api/capability.h>
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#include <l4/generic/capability.h>
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#include <l4/generic/cap-types.h>
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#include <l4/api/thread.h>
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#include <l4/api/space.h>
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#include <l4/api/errno.h>
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#include <container.h>
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static struct capability cap_array[30];
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static int total_caps;
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void print_capability(struct capability *cap)
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{
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printf("Capability id:\t\t\t%d\n", cap->capid);
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printf("Capability resource id:\t\t%d\n", cap->resid);
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printf("Capability owner id:\t\t%d\n",cap->owner);
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switch (cap_type(cap)) {
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case CAP_TYPE_TCTRL:
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printf("Capability type:\t\t%s\n", "Thread Control");
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break;
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case CAP_TYPE_EXREGS:
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printf("Capability type:\t\t%s\n", "Exchange Registers");
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break;
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case CAP_TYPE_MAP:
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printf("Capability type:\t\t%s\n", "Map");
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break;
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case CAP_TYPE_IPC:
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printf("Capability type:\t\t%s\n", "Ipc");
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break;
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case CAP_TYPE_UMUTEX:
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printf("Capability type:\t\t%s\n", "Mutex");
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break;
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case CAP_TYPE_QUANTITY:
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printf("Capability type:\t\t%s\n", "Quantitative");
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break;
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default:
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printf("Capability type:\t\t%s\n", "Unknown");
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break;
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}
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switch (cap_rtype(cap)) {
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case CAP_RTYPE_THREAD:
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printf("Capability resource type:\t%s\n", "Thread");
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break;
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case CAP_RTYPE_TGROUP:
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printf("Capability resource type:\t%s\n", "Thread Group");
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break;
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case CAP_RTYPE_SPACE:
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printf("Capability resource type:\t%s\n", "Space");
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break;
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case CAP_RTYPE_CONTAINER:
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printf("Capability resource type:\t%s\n", "Container");
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break;
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case CAP_RTYPE_UMUTEX:
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printf("Capability resource type:\t%s\n", "Mutex");
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break;
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case CAP_RTYPE_VIRTMEM:
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printf("Capability resource type:\t%s\n", "Virtual Memory");
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break;
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case CAP_RTYPE_PHYSMEM:
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printf("Capability resource type:\t%s\n", "Physical Memory");
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break;
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case CAP_RTYPE_THREADPOOL:
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printf("Capability resource type:\t%s\n", "Thread Pool");
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break;
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case CAP_RTYPE_SPACEPOOL:
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printf("Capability resource type:\t%s\n", "Space Pool");
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break;
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case CAP_RTYPE_MUTEXPOOL:
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printf("Capability resource type:\t%s\n", "Mutex Pool");
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break;
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case CAP_RTYPE_MAPPOOL:
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printf("Capability resource type:\t%s\n", "Map Pool (PMDS)");
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break;
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case CAP_RTYPE_CPUPOOL:
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printf("Capability resource type:\t%s\n", "Cpu Pool");
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break;
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case CAP_RTYPE_CAPPOOL:
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printf("Capability resource type:\t%s\n", "Capability Pool");
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break;
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default:
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printf("Capability resource type:\t%s\n", "Unknown");
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break;
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}
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printf("\n");
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}
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/* For same space */
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#define STACK_SIZE 0x1000
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#define THREADS_TOTAL 10
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char stack[THREADS_TOTAL][STACK_SIZE] ALIGN(8);
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char *__stack_ptr = &stack[1][0];
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char utcb[THREADS_TOTAL][UTCB_SIZE] ALIGN(8);
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char *__utcb_ptr = &utcb[1][0];
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extern void setup_new_thread(void);
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int thread_create(int (*func)(void *), void *args, unsigned int flags,
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struct task_ids *new_ids)
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{
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struct task_ids ids;
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struct exregs_data exregs;
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int err;
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l4_getid(&ids);
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/* Shared space only */
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if (!(TC_SHARE_SPACE & flags)) {
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printf("%s: This function allows only "
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"shared space thread creation.\n",
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__FUNCTION__);
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return -EINVAL;
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}
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/* Create thread */
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if ((err = l4_thread_control(THREAD_CREATE | flags, &ids)) < 0)
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return err;
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/* Check if more stack/utcb available */
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if ((unsigned long)__utcb_ptr ==
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(unsigned long)&utcb[THREADS_TOTAL][0])
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return -ENOMEM;
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if ((unsigned long)__stack_ptr ==
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(unsigned long)&stack[THREADS_TOTAL][0])
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return -ENOMEM;
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/* First word of new stack is arg */
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((unsigned long *)__stack_ptr)[-1] = (unsigned long)args;
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/* Second word of new stack is function address */
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((unsigned long *)__stack_ptr)[-2] = (unsigned long)func;
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/* Setup new thread pc, sp, utcb */
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memset(&exregs, 0, sizeof(exregs));
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exregs_set_stack(&exregs, (unsigned long)__stack_ptr);
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exregs_set_utcb(&exregs, (unsigned long)__utcb_ptr);
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exregs_set_pc(&exregs, (unsigned long)setup_new_thread);
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if ((err = l4_exchange_registers(&exregs, ids.tid)) < 0)
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return err;
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/* Update utcb, stack pointers */
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__stack_ptr += STACK_SIZE;
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__utcb_ptr += UTCB_SIZE;
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/* Start the new thread */
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if ((err = l4_thread_control(THREAD_RUN, &ids)) < 0)
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return err;
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memcpy(new_ids, &ids, sizeof(ids));
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return 0;
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}
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int read_pager_capabilities()
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{
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int ncaps;
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int err;
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/* Read number of capabilities */
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if ((err = l4_capability_control(CAP_CONTROL_NCAPS,
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0, &ncaps)) < 0) {
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printf("l4_capability_control() reading # of"
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" capabilities failed.\n Could not "
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"complete CAP_CONTROL_NCAPS request.\n");
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BUG();
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}
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total_caps = ncaps;
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/* Read all capabilities */
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if ((err = l4_capability_control(CAP_CONTROL_READ,
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0, cap_array)) < 0) {
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printf("l4_capability resource_control() reading of "
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"capabilities failed.\n Could not "
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"complete CAP_CONTROL_READ_CAPS request.\n");
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BUG();
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}
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for (int i = 0; i < total_caps; i++)
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print_capability(&cap_array[i]);
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return 0;
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}
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int result = 1;
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int simple_pager_thread(void *arg)
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{
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int err;
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int res = *(int *)arg;
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struct task_ids ids;
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int testres;
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l4_getid(&ids);
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//printf("Thread spawned from pager, "
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// "trying to create new thread.\n");
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err = l4_thread_control(THREAD_CREATE |
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TC_SHARE_SPACE |
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TC_AS_PAGER, &ids);
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if (res == 0)
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if (err == -ENOCAP ||
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err == -ENOMEM) {
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//printf("Creation failed with %d "
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// "as expected.\n", err);
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testres = 0;
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} else {
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printf("Creation was supposed to fail "
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"with %d or %d, but err = %d\n",
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-ENOMEM, -ENOCAP, err);
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testres = -1;
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}
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else
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if (err == 0) {
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// printf("Creation succeeded as expected.\n");
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testres = 0;
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} else {
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printf("Creation was supposed to succeed, "
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"but err = %d\n", err);
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testres = -1;
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}
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/* Destroy thread we created */
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if (err == 0 &&
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res == 0)
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l4_thread_control(THREAD_DESTROY, &ids);
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result = testres;
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/* Destroy self */
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l4_getid(&ids);
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l4_thread_control(THREAD_DESTROY, &ids);
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return 0;
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}
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int wait_check_test(void)
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{
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/* Wait for thread to finish */
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while (result > 0)
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;
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//l4_thread_switch(0);
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if (result != 0) {
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printf("Top-level test has failed\n");
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return -1;
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}
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result = 1;
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return 0;
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}
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#include <capability.h>
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#include <thread.h>
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#include <tests.h>
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int main(void)
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{
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int err;
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struct task_ids ids;
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int TEST_MUST_FAIL = 0;
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int TEST_MUST_SUCCEED = 1;
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printf("%s: Container %s started\n",
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__CONTAINER__, __CONTAINER_NAME__);
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/* Read pager capabilities */
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read_pager_capabilities();
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capability_test();
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/*
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* Create new thread that will attempt
|
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* a pager privileged operation
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*/
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if ((err = thread_create(simple_pager_thread,
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&TEST_MUST_FAIL,
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TC_SHARE_SPACE |
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TC_AS_PAGER, &ids)) < 0) {
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printf("Top-level simple_pager creation failed.\n");
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goto out_err;
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}
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/* Wait for test to finish and check result */
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if (wait_check_test() < 0)
|
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goto out_err;
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|
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#if 0
|
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/* Destroy test thread */
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if ((err = l4_thread_control(THREAD_DESTROY, &ids)) < 0) {
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printf("Destruction of top-level simple_pager failed.\n");
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BUG();
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}
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#endif
|
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|
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/*
|
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* Share operations with the same thread
|
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* group
|
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*/
|
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if ((err = l4_capability_control(CAP_CONTROL_SHARE,
|
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CAP_SHARE_GROUP, 0)) < 0) {
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printf("Sharing capability with thread group failed.\n");
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goto out_err;
|
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}
|
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|
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/*
|
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* Create new thread that will attempt a pager privileged
|
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* operation. This should succeed as we shared caps with
|
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* the thread group.
|
||||
*/
|
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if ((err = thread_create(simple_pager_thread,
|
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&TEST_MUST_SUCCEED,
|
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TC_SHARE_SPACE |
|
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TC_SHARE_GROUP, &ids)) < 0) {
|
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printf("Top-level simple_pager creation failed.\n");
|
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goto out_err;
|
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}
|
||||
|
||||
/* Wait for test to finish and check result */
|
||||
if (wait_check_test() < 0)
|
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goto out_err;
|
||||
|
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#if 0
|
||||
/* Destroy test thread */
|
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if ((err = l4_thread_control(THREAD_DESTROY, &ids)) < 0) {
|
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printf("Destruction of top-level simple_pager failed.\n");
|
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BUG();
|
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}
|
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#endif
|
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|
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printf("Capability Sharing Test -- PASSED --\n");
|
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|
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return 0;
|
||||
|
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out_err:
|
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printf("Capability Sharing Test -- FAILED --\n");
|
||||
return 0;
|
||||
}
|
||||
|
||||
|
||||
1
conts/test/src/arch
Symbolic link
1
conts/test/src/arch
Symbolic link
@@ -0,0 +1 @@
|
||||
arch-arm
|
||||
11
conts/test/src/arch-arm/new_thread.S
Normal file
11
conts/test/src/arch-arm/new_thread.S
Normal file
@@ -0,0 +1,11 @@
|
||||
#include <l4lib/arch/asm.h>
|
||||
|
||||
|
||||
BEGIN_PROC(setup_new_thread)
|
||||
ldr r0, [sp, #-4]! @ Load first argument.
|
||||
mov lr, pc @ Save return address
|
||||
ldr pc, [sp, #-4]! @ Load function pointer from stack
|
||||
new_thread_exit:
|
||||
b new_thread_exit @ We infinitely loop for now.
|
||||
END_PROC(setup_new_thread)
|
||||
|
||||
114
conts/test/src/capability.c
Normal file
114
conts/test/src/capability.c
Normal file
@@ -0,0 +1,114 @@
|
||||
#include <capability.h>
|
||||
#include <stdio.h>
|
||||
#include <l4lib/arch/syscalls.h>
|
||||
|
||||
static struct capability cap_array[30];
|
||||
static int total_caps;
|
||||
|
||||
void print_capability(struct capability *cap)
|
||||
{
|
||||
printf("Capability id:\t\t\t%d\n", cap->capid);
|
||||
printf("Capability resource id:\t\t%d\n", cap->resid);
|
||||
printf("Capability owner id:\t\t%d\n",cap->owner);
|
||||
|
||||
switch (cap_type(cap)) {
|
||||
case CAP_TYPE_TCTRL:
|
||||
printf("Capability type:\t\t%s\n", "Thread Control");
|
||||
break;
|
||||
case CAP_TYPE_EXREGS:
|
||||
printf("Capability type:\t\t%s\n", "Exchange Registers");
|
||||
break;
|
||||
case CAP_TYPE_MAP:
|
||||
printf("Capability type:\t\t%s\n", "Map");
|
||||
break;
|
||||
case CAP_TYPE_IPC:
|
||||
printf("Capability type:\t\t%s\n", "Ipc");
|
||||
break;
|
||||
case CAP_TYPE_UMUTEX:
|
||||
printf("Capability type:\t\t%s\n", "Mutex");
|
||||
break;
|
||||
case CAP_TYPE_QUANTITY:
|
||||
printf("Capability type:\t\t%s\n", "Quantitative");
|
||||
break;
|
||||
default:
|
||||
printf("Capability type:\t\t%s\n", "Unknown");
|
||||
break;
|
||||
}
|
||||
|
||||
switch (cap_rtype(cap)) {
|
||||
case CAP_RTYPE_THREAD:
|
||||
printf("Capability resource type:\t%s\n", "Thread");
|
||||
break;
|
||||
case CAP_RTYPE_TGROUP:
|
||||
printf("Capability resource type:\t%s\n", "Thread Group");
|
||||
break;
|
||||
case CAP_RTYPE_SPACE:
|
||||
printf("Capability resource type:\t%s\n", "Space");
|
||||
break;
|
||||
case CAP_RTYPE_CONTAINER:
|
||||
printf("Capability resource type:\t%s\n", "Container");
|
||||
break;
|
||||
case CAP_RTYPE_UMUTEX:
|
||||
printf("Capability resource type:\t%s\n", "Mutex");
|
||||
break;
|
||||
case CAP_RTYPE_VIRTMEM:
|
||||
printf("Capability resource type:\t%s\n", "Virtual Memory");
|
||||
break;
|
||||
case CAP_RTYPE_PHYSMEM:
|
||||
printf("Capability resource type:\t%s\n", "Physical Memory");
|
||||
break;
|
||||
case CAP_RTYPE_THREADPOOL:
|
||||
printf("Capability resource type:\t%s\n", "Thread Pool");
|
||||
break;
|
||||
case CAP_RTYPE_SPACEPOOL:
|
||||
printf("Capability resource type:\t%s\n", "Space Pool");
|
||||
break;
|
||||
case CAP_RTYPE_MUTEXPOOL:
|
||||
printf("Capability resource type:\t%s\n", "Mutex Pool");
|
||||
break;
|
||||
case CAP_RTYPE_MAPPOOL:
|
||||
printf("Capability resource type:\t%s\n", "Map Pool (PMDS)");
|
||||
break;
|
||||
case CAP_RTYPE_CPUPOOL:
|
||||
printf("Capability resource type:\t%s\n", "Cpu Pool");
|
||||
break;
|
||||
case CAP_RTYPE_CAPPOOL:
|
||||
printf("Capability resource type:\t%s\n", "Capability Pool");
|
||||
break;
|
||||
default:
|
||||
printf("Capability resource type:\t%s\n", "Unknown");
|
||||
break;
|
||||
}
|
||||
printf("\n");
|
||||
}
|
||||
|
||||
int read_pager_capabilities()
|
||||
{
|
||||
int ncaps;
|
||||
int err;
|
||||
|
||||
/* Read number of capabilities */
|
||||
if ((err = l4_capability_control(CAP_CONTROL_NCAPS,
|
||||
0, &ncaps)) < 0) {
|
||||
printf("l4_capability_control() reading # of"
|
||||
" capabilities failed.\n Could not "
|
||||
"complete CAP_CONTROL_NCAPS request.\n");
|
||||
BUG();
|
||||
}
|
||||
total_caps = ncaps;
|
||||
|
||||
/* Read all capabilities */
|
||||
if ((err = l4_capability_control(CAP_CONTROL_READ,
|
||||
0, cap_array)) < 0) {
|
||||
printf("l4_capability resource_control() reading of "
|
||||
"capabilities failed.\n Could not "
|
||||
"complete CAP_CONTROL_READ_CAPS request.\n");
|
||||
BUG();
|
||||
}
|
||||
|
||||
for (int i = 0; i < total_caps; i++)
|
||||
print_capability(&cap_array[i]);
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
150
conts/test/src/captest.c
Normal file
150
conts/test/src/captest.c
Normal file
@@ -0,0 +1,150 @@
|
||||
#include <thread.h>
|
||||
#include <capability.h>
|
||||
#include <container.h>
|
||||
#include <tests.h>
|
||||
#include <l4/api/errno.h>
|
||||
static int result = 1;
|
||||
|
||||
int simple_pager_thread(void *arg)
|
||||
{
|
||||
int err;
|
||||
int res = *(int *)arg;
|
||||
struct task_ids ids;
|
||||
int testres;
|
||||
|
||||
l4_getid(&ids);
|
||||
|
||||
//printf("Thread spawned from pager, "
|
||||
// "trying to create new thread.\n");
|
||||
err = l4_thread_control(THREAD_CREATE |
|
||||
TC_SHARE_SPACE |
|
||||
TC_AS_PAGER, &ids);
|
||||
|
||||
if (res == 0)
|
||||
if (err == -ENOCAP ||
|
||||
err == -ENOMEM) {
|
||||
//printf("Creation failed with %d "
|
||||
// "as expected.\n", err);
|
||||
testres = 0;
|
||||
} else {
|
||||
printf("Creation was supposed to fail "
|
||||
"with %d or %d, but err = %d\n",
|
||||
-ENOMEM, -ENOCAP, err);
|
||||
testres = -1;
|
||||
}
|
||||
else
|
||||
if (err == 0) {
|
||||
// printf("Creation succeeded as expected.\n");
|
||||
testres = 0;
|
||||
} else {
|
||||
printf("Creation was supposed to succeed, "
|
||||
"but err = %d\n", err);
|
||||
testres = -1;
|
||||
}
|
||||
|
||||
/* Destroy thread we created */
|
||||
if (err == 0 &&
|
||||
res == 0)
|
||||
l4_thread_control(THREAD_DESTROY, &ids);
|
||||
|
||||
result = testres;
|
||||
|
||||
/* Destroy self */
|
||||
l4_getid(&ids);
|
||||
l4_thread_control(THREAD_DESTROY, &ids);
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
int wait_check_test(void)
|
||||
{
|
||||
/* Wait for thread to finish */
|
||||
while (result > 0)
|
||||
;
|
||||
//l4_thread_switch(0);
|
||||
|
||||
if (result != 0) {
|
||||
printf("Top-level test has failed\n");
|
||||
return -1;
|
||||
}
|
||||
result = 1;
|
||||
return 0;
|
||||
}
|
||||
|
||||
int capability_test(void)
|
||||
{
|
||||
int err;
|
||||
struct task_ids ids;
|
||||
int TEST_MUST_FAIL = 0;
|
||||
int TEST_MUST_SUCCEED = 1;
|
||||
|
||||
/* Read pager capabilities */
|
||||
read_pager_capabilities();
|
||||
|
||||
/*
|
||||
* Create new thread that will attempt
|
||||
* a pager privileged operation
|
||||
*/
|
||||
if ((err = thread_create(simple_pager_thread,
|
||||
&TEST_MUST_FAIL,
|
||||
TC_SHARE_SPACE |
|
||||
TC_AS_PAGER, &ids)) < 0) {
|
||||
printf("Top-level simple_pager creation failed.\n");
|
||||
goto out_err;
|
||||
}
|
||||
|
||||
/* Wait for test to finish and check result */
|
||||
if (wait_check_test() < 0)
|
||||
goto out_err;
|
||||
|
||||
#if 0
|
||||
/* Destroy test thread */
|
||||
if ((err = l4_thread_control(THREAD_DESTROY, &ids)) < 0) {
|
||||
printf("Destruction of top-level simple_pager failed.\n");
|
||||
BUG();
|
||||
}
|
||||
#endif
|
||||
|
||||
/*
|
||||
* Share operations with the same thread
|
||||
* group
|
||||
*/
|
||||
if ((err = l4_capability_control(CAP_CONTROL_SHARE,
|
||||
CAP_SHARE_GROUP, 0)) < 0) {
|
||||
printf("Sharing capability with thread group failed.\n");
|
||||
goto out_err;
|
||||
}
|
||||
|
||||
/*
|
||||
* Create new thread that will attempt a pager privileged
|
||||
* operation. This should succeed as we shared caps with
|
||||
* the thread group.
|
||||
*/
|
||||
if ((err = thread_create(simple_pager_thread,
|
||||
&TEST_MUST_SUCCEED,
|
||||
TC_SHARE_SPACE |
|
||||
TC_SHARE_GROUP, &ids)) < 0) {
|
||||
printf("Top-level simple_pager creation failed.\n");
|
||||
goto out_err;
|
||||
}
|
||||
|
||||
/* Wait for test to finish and check result */
|
||||
if (wait_check_test() < 0)
|
||||
goto out_err;
|
||||
|
||||
#if 0
|
||||
/* Destroy test thread */
|
||||
if ((err = l4_thread_control(THREAD_DESTROY, &ids)) < 0) {
|
||||
printf("Destruction of top-level simple_pager failed.\n");
|
||||
BUG();
|
||||
}
|
||||
#endif
|
||||
|
||||
printf("Capability Sharing Test -- PASSED --\n");
|
||||
|
||||
return 0;
|
||||
|
||||
out_err:
|
||||
printf("Capability Sharing Test -- FAILED --\n");
|
||||
return 0;
|
||||
}
|
||||
73
conts/test/src/thread.c
Normal file
73
conts/test/src/thread.c
Normal file
@@ -0,0 +1,73 @@
|
||||
/*
|
||||
* Thread creation userspace helpers
|
||||
*
|
||||
* Copyright (C) 2009 B Labs Ltd.
|
||||
*/
|
||||
#include <thread.h>
|
||||
#include <l4/api/errno.h>
|
||||
|
||||
char stack[THREADS_TOTAL][STACK_SIZE] ALIGN(8);
|
||||
char *__stack_ptr = &stack[1][0];
|
||||
|
||||
char utcb[THREADS_TOTAL][UTCB_SIZE] ALIGN(8);
|
||||
char *__utcb_ptr = &utcb[1][0];
|
||||
|
||||
extern void setup_new_thread(void);
|
||||
|
||||
int thread_create(int (*func)(void *), void *args, unsigned int flags,
|
||||
struct task_ids *new_ids)
|
||||
{
|
||||
struct task_ids ids;
|
||||
struct exregs_data exregs;
|
||||
int err;
|
||||
|
||||
l4_getid(&ids);
|
||||
|
||||
/* Shared space only */
|
||||
if (!(TC_SHARE_SPACE & flags)) {
|
||||
printf("%s: This function allows only "
|
||||
"shared space thread creation.\n",
|
||||
__FUNCTION__);
|
||||
return -EINVAL;
|
||||
}
|
||||
|
||||
/* Create thread */
|
||||
if ((err = l4_thread_control(THREAD_CREATE | flags, &ids)) < 0)
|
||||
return err;
|
||||
|
||||
/* Check if more stack/utcb available */
|
||||
if ((unsigned long)__utcb_ptr ==
|
||||
(unsigned long)&utcb[THREADS_TOTAL][0])
|
||||
return -ENOMEM;
|
||||
if ((unsigned long)__stack_ptr ==
|
||||
(unsigned long)&stack[THREADS_TOTAL][0])
|
||||
return -ENOMEM;
|
||||
|
||||
/* First word of new stack is arg */
|
||||
((unsigned long *)__stack_ptr)[-1] = (unsigned long)args;
|
||||
|
||||
/* Second word of new stack is function address */
|
||||
((unsigned long *)__stack_ptr)[-2] = (unsigned long)func;
|
||||
|
||||
/* Setup new thread pc, sp, utcb */
|
||||
memset(&exregs, 0, sizeof(exregs));
|
||||
exregs_set_stack(&exregs, (unsigned long)__stack_ptr);
|
||||
exregs_set_utcb(&exregs, (unsigned long)__utcb_ptr);
|
||||
exregs_set_pc(&exregs, (unsigned long)setup_new_thread);
|
||||
|
||||
if ((err = l4_exchange_registers(&exregs, ids.tid)) < 0)
|
||||
return err;
|
||||
|
||||
/* Update utcb, stack pointers */
|
||||
__stack_ptr += STACK_SIZE;
|
||||
__utcb_ptr += UTCB_SIZE;
|
||||
|
||||
/* Start the new thread */
|
||||
if ((err = l4_thread_control(THREAD_RUN, &ids)) < 0)
|
||||
return err;
|
||||
|
||||
memcpy(new_ids, &ids, sizeof(ids));
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
Reference in New Issue
Block a user