2 * Helper functions for working with the builtin symbol table
4 * Copyright (c) 2008-2009 Analog Devices Inc.
5 * Licensed under the GPL-2 or later.
10 /* We need the weak marking as this symbol is provided specially */
11 extern const char system_map[] __attribute__((weak));
13 /* Given an address, return a pointer to the symbol name and store
14 * the base address in caddr. So if the symbol map had an entry:
15 * 03fb9b7c_spi_cs_deactivate
16 * Then the following call:
18 * const char *sym = symbol_lookup(0x03fb9b80, &base);
19 * Would end up setting the variables like so:
21 * sym = "_spi_cs_deactivate";
23 const char *symbol_lookup(unsigned long addr, unsigned long *caddr)
25 const char *sym, *csym;
27 unsigned long sym_addr;
34 sym_addr = simple_strtoul(sym, &esym, 16);
40 sym += strlen(sym) + 1;