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// SPDX-License-Identifier: GPL-2.0+
/*
* efi_selftest_miniapp_return
*
* Copyright (c) 2019 Heinrich Schuchardt
*
* This EFI application triggers an exception.
*/
#include <efi_api.h>
#include <host_arch.h>
/*
* Entry point of the EFI application.
*
* @handle handle of the loaded image
* @systable system table
* Return: status code
*/
efi_status_t EFIAPI efi_main(efi_handle_t handle,
struct efi_system_table *systable)
{
struct efi_simple_text_output_protocol *con_out = systable->con_out;
con_out->output_string(con_out,
u"EFI application triggers exception.\n");
#if defined(CONFIG_ARM)
/*
* 0xe7f...f. is undefined in ARM mode
* 0xde.. is undefined in Thumb mode
*/
asm volatile (".word 0xe7f7defb\n");
#elif defined(CONFIG_RISCV)
asm volatile (".word 0xffffffff\n");
#elif defined(CONFIG_X86)
asm volatile (".word 0xffff\n");
#elif defined(CONFIG_SANDBOX)
#if (HOST_ARCH == HOST_ARCH_ARM || HOST_ARCH == HOST_ARCH_AARCH64)
asm volatile (".word 0xe7f7defb\n");
#elif (HOST_ARCH == HOST_ARCH_RISCV32 || HOST_ARCH == HOST_ARCH_RISCV64)
asm volatile (".word 0xffffffff\n");
#elif (HOST_ARCH == HOST_ARCH_X86 || HOST_ARCH == HOST_ARCH_X86_64)
asm volatile (".word 0xffff\n");
#endif
#endif
con_out->output_string(con_out, u"Exception not triggered.\n");
return EFI_ABORTED;
}
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