From 8cf6e9daca19e08216cf09e523d1dcdf3cfdaec7 Mon Sep 17 00:00:00 2001 From: Alistair Francis Date: Thu, 22 Sep 2016 18:13:07 +0100 Subject: loader: Allow ELF loader to auto-detect the ELF arch If the caller didn't specify an architecture for the ELF machine the load_elf() function will auto detect it based on the ELF file. Signed-off-by: Alistair Francis Reviewed-by: Peter Maydell Message-id: f2d70b47fcad31445f947f8817a0e146d80a046b.1474331683.git.alistair.francis@xilinx.com Signed-off-by: Peter Maydell --- include/hw/elf_ops.h | 5 +++++ include/hw/loader.h | 2 ++ 2 files changed, 7 insertions(+) diff --git a/include/hw/elf_ops.h b/include/hw/elf_ops.h index f510e7ec2a..5038c7f058 100644 --- a/include/hw/elf_ops.h +++ b/include/hw/elf_ops.h @@ -280,6 +280,11 @@ static int glue(load_elf, SZ)(const char *name, int fd, glue(bswap_ehdr, SZ)(&ehdr); } + if (elf_machine <= EM_NONE) { + /* The caller didn't specify an ARCH, we can figure it out */ + elf_machine = ehdr.e_machine; + } + switch (elf_machine) { case EM_PPC64: if (ehdr.e_machine != EM_PPC64) { diff --git a/include/hw/loader.h b/include/hw/loader.h index 4879b63a2f..c59673dfc5 100644 --- a/include/hw/loader.h +++ b/include/hw/loader.h @@ -68,6 +68,8 @@ const char *load_elf_strerror(int error); * load will fail if the target ELF does not match. Some architectures * have some architecture-specific behaviours that come into effect when * their particular values for @elf_machine are set. + * 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. */ int load_elf(const char *filename, uint64_t (*translate_fn)(void *, uint64_t), -- cgit v1.2.3