5d6715078f
Change-Id: I83248c1162e28c3c24ca5f6b0933e1a8ca434d6b Fujitsu: POSTK_DEBUG_TEMP_FIX_37 Refs: #1351
55 lines
1.4 KiB
Diff
55 lines
1.4 KiB
Diff
diff --git kernel/include/mman.h kernel/include/mman.h
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index e7d3526..3b8b0f3 100644
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--- kernel/include/mman.h
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+++ kernel/include/mman.h
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@@ -56,6 +56,7 @@
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#define MADV_DODUMP 17
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#define MADV_HWPOISON 100
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#define MADV_SOFT_OFFLINE 101
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+#define MADV_SHOW_ATTR 201 /* for TEST */
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/*
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* for mremap()
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diff --git kernel/syscall.c kernel/syscall.c
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index 564c103..9e2c56f 100644
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--- kernel/syscall.c
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+++ kernel/syscall.c
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@@ -4651,6 +4651,14 @@ clear_memory_range_flag(struct vm_range *range, unsigned long arg)
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}
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static int
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+show_memory_range_flag(struct vm_range *range, unsigned long arg)
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+{
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+ kprintf("range 0x%lx - 0x%lx attr: 0x%lx\n",
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+ range->start, range->end, range->flag);
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+ return 0;
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+}
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+
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+static int
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change_attr_process_memory_range(struct process_vm *vm,
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uintptr_t start, uintptr_t end,
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int (*change_proc)(struct vm_range *,
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@@ -4779,6 +4787,7 @@ SYSCALL_DECLARE(madvise)
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case MADV_REMOVE:
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case MADV_DONTDUMP:
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case MADV_DODUMP:
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+ case MADV_SHOW_ATTR:
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break;
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case MADV_HWPOISON:
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@@ -4919,6 +4928,14 @@ SYSCALL_DECLARE(madvise)
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error = syscall_generic_forwarding(__NR_madvise, ctx);
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}
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+ if (advice == MADV_SHOW_ATTR) {
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+ error = change_attr_process_memory_range(thread->vm,
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+ start, end, show_memory_range_flag, 0);
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+ if (error) {
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+ goto out;
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+ }
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+ }
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+
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error = 0;
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out:
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memory_range_write_unlock(thread->vm, &irqflags);
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