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Finished adding untested bare functionality vfs

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Finished adding untested shm syscalls.
Finished adding untested l4 send/recv helpers

Everything compiles. Now going to fix lots of bugs ;-)
This commit is contained in:
Bahadir Balban
2008-02-03 17:42:38 +00:00
parent 05e9028e90
commit cab2e8bdd3
51 changed files with 1661 additions and 227 deletions
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4
tasks/mm0/SConstruct
View File

@@ -59,13 +59,13 @@ def get_physical_base(source, target, env):
env = Environment(CC = 'arm-none-linux-gnueabi-gcc',
# We don't use -nostdinc because sometimes we need standard headers,
# such as stdarg.h e.g. for variable args, as in printk().
CCFLAGS = ['-g', '-nostdlib', '-ffreestanding', '-std=gnu99', '-Wall', '-Werror'],
CCFLAGS = ['-g', '-nostdlib', '-ffreestanding', '-std=gnu99', '-Wall', '-Werror' ],
LINKFLAGS = ['-nostdlib', '-T' + ld_script, "-L" + libc_libpath, "-L" + libl4_path, "-L" + libmem_path],
ASFLAGS = ['-D__ASSEMBLY__'],
PROGSUFFIX = '.axf', # The suffix to use for final executable
ENV = {'PATH' : os.environ['PATH']}, # Inherit shell path
LIBS = [libc_name, 'libl4', 'libmm', 'libmc', 'libkm', \
'gcc', libc_name], # libgcc.a - This is required for division routines.
'gcc', libc_name], # libgcc.a - This is required for division routines.
CPPFLAGS = "-D__USERSPACE__",
CPPPATH = ['#include', libl4_incpath, libc_incpath, kernel_incpath, \
libmem_incpath, libposix_incpath])

2
tasks/mm0/include/task.h
View File

@@ -64,6 +64,8 @@ void init_pm(struct initdata *initdata);
int start_init_tasks(struct initdata *initdata);
void dump_tasks(void);
void send_task_data(l4id_t requester);
/* Used by servers that have a reference to tcbs (e.g. a pager) */
#define current ((struct ktcb *)__L4_ARM_Utcb()->usr_handle)

4
tasks/mm0/main.c
View File

@@ -63,6 +63,10 @@ void handle_requests(void)
page_fault_handler(sender, (fault_kdata_t *)&mr[0]);
break;
case L4_IPC_TAG_TASKDATA:
send_task_data(sender);
break;
case L4_IPC_TAG_SHMGET: {
struct sys_shmget_args *args = (struct sys_shmget_args *)&mr[0];
sys_shmget(args->key, args->size, args->shmflg);

1
tasks/mm0/src/mmap.c
View File

@@ -494,4 +494,3 @@ int sys_brk(l4id_t sender, void *ds_end)
return 0;
}

29
tasks/mm0/src/task.c
View File

@@ -11,6 +11,7 @@
#include INC_GLUE(memory.h)
#include <l4lib/arch/syscalls.h>
#include <l4lib/arch/syslib.h>
#include <l4lib/ipcdefs.h>
#include <lib/vaddr.h>
#include <task.h>
#include <kdata.h>
@@ -147,3 +148,31 @@ void init_pm(struct initdata *initdata)
start_init_tasks(initdata);
}
void send_task_data(l4id_t requester)
{
struct tcb *t;
int li, err;
if (requester != VFS_TID) {
printf("Task data is not requested by FS0, ignoring.\n");
return;
}
/* First word is total number of tcbs */
write_mr(L4SYS_ARG0, tcb_head.total);
/* Write each tcb's tid */
li = 0;
list_for_each_entry(t, &tcb_head.list, list) {
BUG_ON(li >= MR_USABLE_TOTAL);
write_mr(L4SYS_ARG1 + li, t->tid);
li++;
}
/* Reply */
if ((err = l4_ipc_return(0)) < 0) {
printf("%s: L4 IPC Error: %d.\n", __FUNCTION__, err);
BUG();
}
}