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loader: Handle memory-mapped ELFs

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This patch allows handling an ELF memory-mapped, taking care
the reference count of the GMappedFile* passed through
rom_add_elf_program().
In this case, the 'data' pointer is not heap-allocated, so
we cannot free it.

Suggested-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Stefano Garzarella <sgarzare@redhat.com>
Message-Id: <20190724143105.307042-2-sgarzare@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This commit is contained in:
Stefano Garzarella 2019-07-24 16:31:03 +02:00 • committed by Paolo Bonzini
parent b896c4b50d
commit fef28891aa
3 changed files with 34 additions and 11 deletions
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5
include/hw/loader.h
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@ -258,8 +258,9 @@ MemoryRegion *rom_add_blob(const char *name, const void *blob, size_t len,
FWCfgCallback fw_callback,
void *callback_opaque, AddressSpace *as,
bool read_only);
int rom_add_elf_program(const char *name, void *data, size_t datasize,
size_t romsize, hwaddr addr, AddressSpace *as);
int rom_add_elf_program(const char *name, GMappedFile *mapped_file, void *data,
size_t datasize, size_t romsize, hwaddr addr,
AddressSpace *as);
int rom_check_and_register_reset(void);
void rom_set_fw(FWCfgState *f);
void rom_set_order_override(int order);