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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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17
include/hw/loader.h
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@ -64,7 +64,7 @@ int load_image_gzipped(const char *filename, hwaddr addr, uint64_t max_sz);
#define ELF_LOAD_WRONG_ENDIAN -4
const char *load_elf_strerror(int error);
/** load_elf_ram:
/** load_elf_ram_sym:
* @filename: Path of ELF file
* @translate_fn: optional function to translate load addresses
* @translate_opaque: opaque data passed to @translate_fn
@ -81,6 +81,7 @@ const char *load_elf_strerror(int error);
* @as: The AddressSpace to load the ELF to. The value of address_space_memory
* is used if nothing is supplied here.
* @load_rom : Load ELF binary as ROM
* @sym_cb: Callback function for symbol table entries
*
* Load an ELF file's contents to the emulated system's address space.
* Clients may optionally specify a callback to perform address
@ -93,6 +94,20 @@ const char *load_elf_strerror(int error);
* If @elf_machine is EM_NONE then the machine type will be read from the
* ELF header and no checks will be carried out against the machine type.
*/
typedef void (*symbol_fn_t)(const char *st_name, int st_info,
uint64_t st_value, uint64_t st_size);
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);
/** load_elf_ram:
* Same as load_elf_ram_sym(), but doesn't allow the caller to specify a
* symbol callback function
*/
int load_elf_ram(const char *filename,
uint64_t (*translate_fn)(void *, uint64_t),
void *translate_opaque, uint64_t *pentry, uint64_t *lowaddr,