/* * display a single VMA to a sequenced file */ static int nommu_vma_show(struct seq_file *m, struct vm_area_struct *vma, int is_pid) { struct mm_struct *mm = vma->vm_mm; struct proc_maps_private *priv = m->private; unsigned long ino = 0; struct file *file; dev_t dev = 0; int flags; unsigned long long pgoff = 0; flags = vma->vm_flags; file = vma->vm_file; if (file) { struct inode *inode = file_inode(vma->vm_file); dev = inode->i_sb->s_dev; ino = inode->i_ino; pgoff = (loff_t)vma->vm_pgoff << PAGE_SHIFT; } seq_setwidth(m, 25 + sizeof(void *) * 6 - 1); seq_printf(m, "%08lx-%08lx %c%c%c%c %08llx %02x:%02x %lu ", vma->vm_start, vma->vm_end, flags & VM_READ ? 'r' : '-', flags & VM_WRITE ? 'w' : '-', flags & VM_EXEC ? 'x' : '-', flags & VM_MAYSHARE ? flags & VM_SHARED ? 'S' : 's' : 'p', pgoff, MAJOR(dev), MINOR(dev), ino); if (file) { seq_pad(m, ' '); seq_file_path(m, file, ""); } else if (mm) { pid_t tid = pid_of_stack(priv, vma, is_pid); if (tid != 0) { seq_pad(m, ' '); /* * Thread stack in /proc/PID/task/TID/maps or * the main process stack. */ if (!is_pid || (vma->vm_start <= mm->start_stack && vma->vm_end >= mm->start_stack)) seq_printf(m, "[stack]"); else seq_printf(m, "[stack:%d]", tid); } } seq_putc(m, '\n'); return 0; }
/* * display a single VMA to a sequenced file */ static int nommu_vma_show(struct seq_file *m, struct vm_area_struct *vma, int is_pid) { struct mm_struct *mm = vma->vm_mm; struct proc_maps_private *priv = m->private; unsigned long ino = 0; struct file *file; dev_t dev = 0; int flags; unsigned long long pgoff = 0; flags = vma->vm_flags; file = vma->vm_file; if (file) { struct inode *inode = file_inode(vma->vm_file); dev = inode->i_sb->s_dev; ino = inode->i_ino; pgoff = (loff_t)vma->vm_pgoff << PAGE_SHIFT; } seq_setwidth(m, 25 + sizeof(void *) * 6 - 1); seq_printf(m, "%08lx-%08lx %c%c%c%c %08llx %02x:%02x %lu ", vma->vm_start, vma->vm_end, flags & VM_READ ? 'r' : '-', flags & VM_WRITE ? 'w' : '-', flags & VM_EXEC ? 'x' : '-', flags & VM_MAYSHARE ? flags & VM_SHARED ? 'S' : 's' : 'p', pgoff, MAJOR(dev), MINOR(dev), ino); if (file) { seq_pad(m, ' '); seq_file_path(m, file, ""); } else if (mm && is_stack(priv, vma, is_pid)) { seq_pad(m, ' '); seq_printf(m, "[stack]"); } seq_putc(m, '\n'); return 0; }
/* * display a single region to a sequenced file */ static int nommu_region_show(struct seq_file *m, struct vm_region *region) { unsigned long ino = 0; struct file *file; dev_t dev = 0; int flags; flags = region->vm_flags; file = region->vm_file; if (file) { struct inode *inode; file = vmr_pr_or_file(region); inode = file_inode(file); dev = inode->i_sb->s_dev; ino = inode->i_ino; } seq_setwidth(m, 25 + sizeof(void *) * 6 - 1); seq_printf(m, "%08lx-%08lx %c%c%c%c %08llx %02x:%02x %lu ", region->vm_start, region->vm_end, flags & VM_READ ? 'r' : '-', flags & VM_WRITE ? 'w' : '-', flags & VM_EXEC ? 'x' : '-', flags & VM_MAYSHARE ? flags & VM_SHARED ? 'S' : 's' : 'p', ((loff_t)region->vm_pgoff) << PAGE_SHIFT, MAJOR(dev), MINOR(dev), ino); if (file) { seq_pad(m, ' '); seq_file_path(m, file, ""); } seq_putc(m, '\n'); return 0; }