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-rw-r--r--com32/lib/sys/module/common.h70
1 files changed, 70 insertions, 0 deletions
diff --git a/com32/lib/sys/module/common.h b/com32/lib/sys/module/common.h
new file mode 100644
index 00000000..a13027a6
--- /dev/null
+++ b/com32/lib/sys/module/common.h
@@ -0,0 +1,70 @@
+/*
+ * common.h - Common internal operations performed by the module subsystem
+ *
+ * Created on: Aug 11, 2008
+ * Author: Stefan Bucur <stefanb[at]zytor.com>
+ */
+
+#ifndef COMMON_H_
+#define COMMON_H_
+
+#include <stdio.h>
+
+#include <sys/module.h>
+#include <sys/elfutils.h>
+
+#include <linux/list.h>
+
+
+// Performs an operation and jumps to a given label if an error occurs
+#define CHECKED(res, expr, error) \
+ do { \
+ (res) = (expr); \
+ if ((res) < 0) \
+ goto error; \
+ } while (0)
+
+#define MIN(x,y) (((x) < (y)) ? (x) : (y))
+#define MAX(x,y) (((x) > (y)) ? (x) : (y))
+
+
+#ifdef ELF_DEBUG
+#define DBG_PRINT(fmt, args...) fprintf(stderr, "[DBG] " fmt, ##args)
+#else
+#define DBG_PRINT(fmt, args...) // Expand to nothing
+#endif
+
+/**
+ * modules - A global linked list containing all the loaded modules.
+ */
+extern struct list_head modules;
+
+// User-space debugging routines
+#ifdef ELF_DEBUG
+
+extern void print_elf_ehdr(Elf32_Ehdr *ehdr);
+extern void print_elf_symbols(struct elf_module *module);
+
+#endif //ELF_DEBUG
+
+/*
+ * Image files manipulation routines
+ */
+
+extern int image_load(struct elf_module *module);
+extern int image_unload(struct elf_module *module);
+extern int image_read(void *buff, size_t size, struct elf_module *module);
+extern int image_skip(size_t size, struct elf_module *module);
+extern int image_seek(Elf32_Off offset, struct elf_module *module);
+
+extern struct module_dep *module_dep_alloc(struct elf_module *module);
+
+extern int check_header_common(Elf32_Ehdr *elf_hdr);
+
+extern int enforce_dependency(struct elf_module *req, struct elf_module *dep);
+extern int clear_dependency(struct elf_module *req, struct elf_module *dep);
+
+extern int check_symbols(struct elf_module *module);
+
+
+#endif /* COMMON_H_ */