From 556d8dc937f74fa8a5fa849b7e1393db3446f3b2 Mon Sep 17 00:00:00 2001 From: Heinrich Schuchardt Date: Tue, 30 Apr 2019 17:57:30 +0200 Subject: efi_loader: implement support of exit data In case of a failure exit data may be passed to Exit() which in turn is returned by StartImage(). Let the `bootefi` command print the exit data string in case of an error. Signed-off-by: Heinrich Schuchardt --- cmd/bootefi.c | 11 ++++++++--- 1 file changed, 8 insertions(+), 3 deletions(-) (limited to 'cmd') diff --git a/cmd/bootefi.c b/cmd/bootefi.c index b93d8c6a32..f1d7d8bc66 100644 --- a/cmd/bootefi.c +++ b/cmd/bootefi.c @@ -297,6 +297,8 @@ static efi_status_t efi_install_fdt(const char *fdt_opt) static efi_status_t do_bootefi_exec(efi_handle_t handle) { efi_status_t ret; + efi_uintn_t exit_data_size = 0; + u16 *exit_data = NULL; /* Transfer environment variable as load options */ ret = set_load_options(handle, "bootargs"); @@ -304,7 +306,12 @@ static efi_status_t do_bootefi_exec(efi_handle_t handle) return ret; /* Call our payload! */ - ret = EFI_CALL(efi_start_image(handle, NULL, NULL)); + ret = EFI_CALL(efi_start_image(handle, &exit_data_size, &exit_data)); + printf("## Application terminated, r = %lu\n", ret & ~EFI_ERROR_MASK); + if (ret && exit_data) { + printf("## %ls\n", exit_data); + efi_free_pool(exit_data); + } efi_restore_gd(); @@ -357,7 +364,6 @@ static int do_efibootmgr(const char *fdt_opt) } ret = do_bootefi_exec(handle); - printf("## Application terminated, r = %lu\n", ret & ~EFI_ERROR_MASK); if (ret != EFI_SUCCESS) return CMD_RET_FAILURE; @@ -472,7 +478,6 @@ static int do_bootefi_image(const char *image_opt, const char *fdt_opt) goto out; ret = do_bootefi_exec(handle); - printf("## Application terminated, r = %lu\n", ret & ~EFI_ERROR_MASK); out: if (mem_handle) -- cgit v1.2.3