Often, it's useful to check whether /proc/self/maps looks sane when dealing with memory mapped objects, especially when they are JIT'ish dynamically constructed objects. Therefore, dump "/dev/sgx_enclave" matching lines from the memory map in FIXTURE_SETUP().
Signed-off-by: Jarkko Sakkinen jarkko@kernel.org --- tools/testing/selftests/sgx/main.c | 14 ++++++++++++++ 1 file changed, 14 insertions(+)
diff --git a/tools/testing/selftests/sgx/main.c b/tools/testing/selftests/sgx/main.c index 8694772c8fd9..d658882b5dd2 100644 --- a/tools/testing/selftests/sgx/main.c +++ b/tools/testing/selftests/sgx/main.c @@ -117,6 +117,8 @@ FIXTURE_SETUP(enclave) Elf64_Sym *sgx_enter_enclave_sym = NULL; struct vdso_symtab symtab; struct encl_segment *seg; + char maps_line[256]; + FILE *maps_file; unsigned int i; void *addr;
@@ -167,6 +169,18 @@ FIXTURE_SETUP(enclave) memset(&self->run, 0, sizeof(self->run)); self->run.tcs = self->encl.encl_base;
+ maps_file = fopen("/proc/self/maps", "r"); + if (maps_file != NULL) { + while (fgets(maps_line, sizeof(maps_line), maps_file) != NULL) { + maps_line[strlen(maps_line) - 1] = '\0'; + + if (strstr(maps_line, "/dev/sgx_enclave")) + TH_LOG("%s", maps_line); + } + + fclose(maps_file); + } + err: if (!sgx_enter_enclave_sym) encl_delete(&self->encl);