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Make pager and devobj debug messages optional

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This commit is contained in:
Balazs Gerofi
2015-03-05 15:55:38 +09:00
parent bf12a5c45e
commit f82bb284bb
2 changed files with 32 additions and 24 deletions
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21
executer/kernel/syscall.c
View File

@ -805,19 +805,19 @@ static int pager_req_create(ihk_os_t os, int fd, uintptr_t result_pa)
error = vfs_fstat(fd, &st);
if (error) {
printk("pager_req_create(%d,%lx):vfs_stat failed. %d\n", fd, (long)result_pa, error);
dprintk("pager_req_create(%d,%lx):vfs_stat failed. %d\n", fd, (long)result_pa, error);
goto out;
}
if (!S_ISREG(st.mode)) {
error = -ESRCH;
printk("pager_req_create(%d,%lx):not VREG. %x\n", fd, (long)result_pa, st.mode);
dprintk("pager_req_create(%d,%lx):not VREG. %x\n", fd, (long)result_pa, st.mode);
goto out;
}
file = fget(fd);
if (!file) {
error = -EBADF;
printk("pager_req_create(%d,%lx):file not found. %d\n", fd, (long)result_pa, error);
dprintk("pager_req_create(%d,%lx):file not found. %d\n", fd, (long)result_pa, error);
goto out;
}
@ -840,7 +840,7 @@ static int pager_req_create(ihk_os_t os, int fd, uintptr_t result_pa)
}
if (!(maxprot & PROT_READ)) {
error = -EACCES;
printk("pager_req_create(%d,%lx):cannot read file. %d\n", fd, (long)result_pa, error);
dprintk("pager_req_create(%d,%lx):cannot read file. %d\n", fd, (long)result_pa, error);
goto out;
}
@ -1123,7 +1123,7 @@ static int pager_req_map(ihk_os_t os, int fd, size_t len, off_t off, uintptr_t r
struct pager_map_result *resp;
uintptr_t phys;
printk("pager_req_map(%p,%d,%lx,%lx,%lx)\n", os, fd, len, off, result_rpa);
dprintk("pager_req_map(%p,%d,%lx,%lx,%lx)\n", os, fd, len, off, result_rpa);
pager = kzalloc(sizeof(*pager), GFP_KERNEL);
if (!pager) {
error = -ENOMEM;
@ -1193,10 +1193,11 @@ out:
if (pager) {
kfree(pager);
}
printk("pager_req_map(%p,%d,%lx,%lx,%lx): %d\n", os, fd, len, off, result_rpa, error);
dprintk("pager_req_map(%p,%d,%lx,%lx,%lx): %d\n", os, fd, len, off, result_rpa, error);
return error;
}
static int pager_req_pfn(ihk_os_t os, uintptr_t handle, off_t off, uintptr_t ppfn_rpa)
{
const ihk_device_t dev = ihk_os_to_dev(os);
@ -1211,7 +1212,7 @@ static int pager_req_pfn(ihk_os_t os, uintptr_t handle, off_t off, uintptr_t ppf
uintptr_t phys;
uintptr_t *ppfn;
printk("pager_req_pfn(%p,%lx,%lx)\n", os, handle, off);
dprintk("pager_req_pfn(%p,%lx,%lx)\n", os, handle, off);
if ((off < pager->map_off) || ((pager->map_off+pager->map_len) < (off + PAGE_SIZE))) {
error = -ERANGE;
@ -1256,7 +1257,7 @@ static int pager_req_pfn(ihk_os_t os, uintptr_t handle, off_t off, uintptr_t ppf
error = 0;
out:
printk("pager_req_pfn(%p,%lx,%lx): %d %lx\n", os, handle, off, error, pfn);
dprintk("pager_req_pfn(%p,%lx,%lx): %d %lx\n", os, handle, off, error, pfn);
return error;
}
@ -1265,7 +1266,7 @@ static int pager_req_unmap(ihk_os_t os, uintptr_t handle)
struct pager * const pager = (void *)handle;
int error;
printk("pager_req_unmap(%p,%lx)\n", os, handle);
dprintk("pager_req_unmap(%p,%lx)\n", os, handle);
#if LINUX_VERSION_CODE < KERNEL_VERSION(3,5,0)
down_write(&current->mm->mmap_sem);
@ -1281,7 +1282,7 @@ static int pager_req_unmap(ihk_os_t os, uintptr_t handle)
}
kfree(pager);
printk("pager_req_unmap(%p,%lx): %d\n", os, handle, error);
dprintk("pager_req_unmap(%p,%lx): %d\n", os, handle, error);
return error;
}

31
kernel/devobj.c
View File

@ -34,9 +34,16 @@
#include <syscall.h>
#include <process.h>
//#define DEBUG_PRINT_DEVOBJ
#ifdef DEBUG_PRINT_DEVOBJ
#define dkprintf(...) kprintf(__VA_ARGS__)
#define ekprintf(...) kprintf(__VA_ARGS__)
#else
#define dkprintf(...) do { if (0) kprintf(__VA_ARGS__); } while (0)
#define ekprintf(...) kprintf(__VA_ARGS__)
#endif
struct devobj {
struct memobj memobj; /* must be first */
@ -78,7 +85,7 @@ int devobj_create(int fd, size_t len, off_t off, struct memobj **objp, int *maxp
struct devobj *obj = NULL;
const size_t npages = (len + PAGE_SIZE - 1) / PAGE_SIZE;
kprintf("devobj_create(%d,%lx,%lx)\n", fd, len, off);
dkprintf("devobj_create(%d,%lx,%lx)\n", fd, len, off);
#define MAX_PAGES_IN_DEVOBJ (PAGE_SIZE / sizeof(uintptr_t))
if (npages > MAX_PAGES_IN_DEVOBJ) {
error = -EFBIG;
@ -113,8 +120,8 @@ int devobj_create(int fd, size_t len, off_t off, struct memobj **objp, int *maxp
kprintf("devobj_create(%d,%lx,%lx):map failed. %d\n", fd, len, off, error);
goto out;
}
kprintf("devobj_create:handle: %lx\n", result.handle);
kprintf("devobj_create:maxprot: %x\n", result.maxprot);
dkprintf("devobj_create:handle: %lx\n", result.handle);
dkprintf("devobj_create:maxprot: %x\n", result.maxprot);
obj->memobj.ops = &devobj_ops;
obj->memobj.flags = MF_HAS_PAGER;
@ -136,7 +143,7 @@ out:
}
kfree(obj);
}
kprintf("devobj_create(%d,%lx,%lx): %d %p %x%d\n", fd, len, off, error, *objp, *maxprotp);
dkprintf("devobj_create(%d,%lx,%lx): %d %p %x%d\n", fd, len, off, error, *objp, *maxprotp);
return error;
}
@ -144,7 +151,7 @@ static void devobj_ref(struct memobj *memobj)
{
struct devobj *obj = to_devobj(memobj);
kprintf("devobj_ref(%p %lx):\n", obj, obj->handle);
dkprintf("devobj_ref(%p %lx):\n", obj, obj->handle);
memobj_lock(&obj->memobj);
++obj->ref;
memobj_unlock(&obj->memobj);
@ -157,7 +164,7 @@ static void devobj_release(struct memobj *memobj)
struct devobj *free_obj = NULL;
uintptr_t handle;
kprintf("devobj_release(%p %lx)\n", obj, obj->handle);
dkprintf("devobj_release(%p %lx)\n", obj, obj->handle);
memobj_lock(&obj->memobj);
--obj->ref;
@ -189,7 +196,7 @@ static void devobj_release(struct memobj *memobj)
kfree(free_obj);
}
kprintf("devobj_release(%p %lx):free %p\n",
dkprintf("devobj_release(%p %lx):free %p\n",
obj, handle, free_obj);
return;
}
@ -204,7 +211,7 @@ static int devobj_get_page(struct memobj *memobj, off_t off, int p2align, uintpt
ihk_mc_user_context_t ctx;
int ix;
kprintf("devobj_get_page(%p %lx,%lx,%d)\n", memobj, obj->handle, off, p2align);
dkprintf("devobj_get_page(%p %lx,%lx,%d)\n", memobj, obj->handle, off, p2align);
if ((pgoff < obj->pfn_pgoff) || ((obj->pfn_pgoff + obj->npages) <= pgoff)) {
error = -EFBIG;
@ -212,7 +219,7 @@ static int devobj_get_page(struct memobj *memobj, off_t off, int p2align, uintpt
goto out;
}
ix = pgoff - obj->pfn_pgoff;
kprintf("ix: %ld\n", ix);
dkprintf("ix: %ld\n", ix);
memobj_lock(&obj->memobj);
pfn = obj->pfn_table[ix];
@ -232,7 +239,7 @@ kprintf("ix: %ld\n", ix);
if (pfn & PFN_PRESENT) {
/* convert remote physical into local physical */
kprintf("devobj_get_page(%p %lx,%lx,%d):PFN_PRESENT before %#lx\n", memobj, obj->handle, off, p2align, pfn);
dkprintf("devobj_get_page(%p %lx,%lx,%d):PFN_PRESENT before %#lx\n", memobj, obj->handle, off, p2align, pfn);
attr = pfn & ~PFN_PFN;
/* TODO: do an arch dependent PTE to mapping flag conversion
@ -245,7 +252,7 @@ kprintf("devobj_get_page(%p %lx,%lx,%d):PFN_PRESENT before %#lx\n", memobj, obj-
pfn = ihk_mc_map_memory(NULL, (pfn & PFN_PFN), PAGE_SIZE);
pfn &= PFN_PFN;
pfn |= attr;
kprintf("devobj_get_page(%p %lx,%lx,%d):PFN_PRESENT after %#lx\n", memobj, obj->handle, off, p2align, pfn);
dkprintf("devobj_get_page(%p %lx,%lx,%d):PFN_PRESENT after %#lx\n", memobj, obj->handle, off, p2align, pfn);
}
memobj_lock(&obj->memobj);
@ -263,6 +270,6 @@ kprintf("devobj_get_page(%p %lx,%lx,%d):PFN_PRESENT after %#lx\n", memobj, obj->
*physp = pfn & PFN_PFN;
out:
kprintf("devobj_get_page(%p %lx,%lx,%d): %d %lx\n", memobj, obj->handle, off, p2align, error, *physp);
dkprintf("devobj_get_page(%p %lx,%lx,%d): %d %lx\n", memobj, obj->handle, off, p2align, error, *physp);
return error;
}