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d678a59d2d
When bringing in the series 'arm: dts: am62-beagleplay: Fix Beagleplay Ethernet"' I failed to notice that b4 noticed it was based on next and so took that as the base commit and merged that part of next to master. This reverts commitc8ffd1356d, reversing changes made to2ee6f3a5f7. Reported-by: Jonas Karlman <jonas@kwiboo.se> Signed-off-by: Tom Rini <trini@konsulko.com>
43 lines
1,019 B
C
43 lines
1,019 B
C
/*
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* Helper functions for working with the builtin symbol table
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*
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* Copyright (c) 2008-2009 Analog Devices Inc.
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* Licensed under the GPL-2 or later.
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*/
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/* We need the weak marking as this symbol is provided specially */
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extern const char system_map[] __attribute__((weak));
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/* Given an address, return a pointer to the symbol name and store
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* the base address in caddr. So if the symbol map had an entry:
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* 03fb9b7c_spi_cs_deactivate
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* Then the following call:
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* unsigned long base;
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* const char *sym = symbol_lookup(0x03fb9b80, &base);
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* Would end up setting the variables like so:
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* base = 0x03fb9b7c;
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* sym = "_spi_cs_deactivate";
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*/
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const char *symbol_lookup(unsigned long addr, unsigned long *caddr)
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{
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const char *sym, *csym;
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char *esym;
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unsigned long sym_addr;
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sym = system_map;
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csym = NULL;
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*caddr = 0;
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while (*sym) {
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sym_addr = hextoul(sym, &esym);
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sym = esym;
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if (sym_addr > addr)
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break;
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*caddr = sym_addr;
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csym = sym;
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sym += strlen(sym) + 1;
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}
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return csym;
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}
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