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Add symbol table callback interface to load_elf

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The RISC-V HTIF (Host Target Interface) console device requires access
to the symbol table to locate the 'tohost' and 'fromhost' symbols.

Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Michael Clark <mjc@sifive.com>
This commit is contained in:
Michael Clark 2018-03-03 01:31:12 +13:00
parent 47ae93cdfe
commit a2480ffa88
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GPG key ID: 6BF1D7B357EF3E4F
3 changed files with 53 additions and 16 deletions
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18
hw/core/loader.c
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@ -449,6 +449,20 @@ int load_elf_ram(const char *filename,
uint64_t *highaddr, int big_endian, int elf_machine,
int clear_lsb, int data_swab, AddressSpace *as,
bool load_rom)
{
return load_elf_ram_sym(filename, translate_fn, translate_opaque,
pentry, lowaddr, highaddr, big_endian,
elf_machine, clear_lsb, data_swab, as,
load_rom, NULL);
}
/* return < 0 if error, otherwise the number of bytes loaded in memory */
int load_elf_ram_sym(const char *filename,
uint64_t (*translate_fn)(void *, uint64_t),
void *translate_opaque, uint64_t *pentry,
uint64_t *lowaddr, uint64_t *highaddr, int big_endian,
int elf_machine, int clear_lsb, int data_swab,
AddressSpace *as, bool load_rom, symbol_fn_t sym_cb)
{
int fd, data_order, target_data_order, must_swab, ret = ELF_LOAD_FAILED;
uint8_t e_ident[EI_NIDENT];
@ -488,11 +502,11 @@ int load_elf_ram(const char *filename,
if (e_ident[EI_CLASS] == ELFCLASS64) {
ret = load_elf64(filename, fd, translate_fn, translate_opaque, must_swab,
pentry, lowaddr, highaddr, elf_machine, clear_lsb,
data_swab, as, load_rom);
data_swab, as, load_rom, sym_cb);
} else {
ret = load_elf32(filename, fd, translate_fn, translate_opaque, must_swab,
pentry, lowaddr, highaddr, elf_machine, clear_lsb,
data_swab, as, load_rom);
data_swab, as, load_rom, sym_cb);
}
fail: