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authorAndrew Waterman <andrew@sifive.com>2022-10-17 13:51:59 -0700
committerAndrew Waterman <andrew@sifive.com>2022-10-17 13:51:59 -0700
commit68aeeb5500521ff52c216862f9a653b64191f3ad (patch)
tree407230ff48f79f177a792451598d9b2b6e3d34a0 /fesvr/elfloader.cc
parent191634d2854dfed448fc323195f9b65c305e2d77 (diff)
parent03be4ae6c7b8e9865083b61427ff9724c7706fcf (diff)
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Merge branch 'master' into plic_uart_v1plic_uart_v1
Diffstat (limited to 'fesvr/elfloader.cc')
-rw-r--r--fesvr/elfloader.cc6
1 files changed, 5 insertions, 1 deletions
diff --git a/fesvr/elfloader.cc b/fesvr/elfloader.cc
index 76cd6da..1bdccd3 100644
--- a/fesvr/elfloader.cc
+++ b/fesvr/elfloader.cc
@@ -16,7 +16,7 @@
#include <vector>
#include <map>
-std::map<std::string, uint64_t> load_elf(const char* fn, memif_t* memif, reg_t* entry)
+std::map<std::string, uint64_t> load_elf(const char* fn, memif_t* memif, reg_t* entry, unsigned required_xlen = 0)
{
int fd = open(fn, O_RDONLY);
struct stat s;
@@ -32,6 +32,10 @@ std::map<std::string, uint64_t> load_elf(const char* fn, memif_t* memif, reg_t*
assert(size >= sizeof(Elf64_Ehdr));
const Elf64_Ehdr* eh64 = (const Elf64_Ehdr*)buf;
assert(IS_ELF32(*eh64) || IS_ELF64(*eh64));
+ unsigned xlen = IS_ELF32(*eh64) ? 32 : 64;
+ if (required_xlen != 0 && required_xlen != xlen) {
+ throw incompat_xlen(required_xlen, xlen);
+ }
assert(IS_ELFLE(*eh64) || IS_ELFBE(*eh64));
assert(IS_ELF_EXEC(*eh64));
assert(IS_ELF_RISCV(*eh64) || IS_ELF_EM_NONE(*eh64));