u-boot.git/cmd/riscv/exception.c, branch v2024.07

cmd: remove common.h from exception command implementations

2024-03-02T17:26:19Z

The common.h should not be used anymore. Signed-off-by: Heinrich Schuchardt Reviewed-by: Tom Rini

cmd/exception: test RISC-V 16 bit aligned instruction

2023-10-04T09:59:43Z

A 16 bit aligned instruction should generated an exception if the C extension is not available. Provide an 'extension ialign16' command for testing exception handling. For testing build qemu-riscv64_defconfig with CONFIG_RISCV_ISA_C=n and run with qemu-system-riscv64 -M virt -bios u-boot -nographic -cpu rv64,c=false => exception ialign16 Unhandled exception: Instruction address misaligned EPC: 0000000087719138 RA: 0000000087719218 TVAL: 000000008771913e EPC: 0000000080020138 RA: 0000000080020218 reloc adjusted Code: 0113 0101 8067 0000 0113 ff01 3423 0011 (006f 0060) Signed-off-by: Heinrich Schuchardt Reviewed-by: Leo Yu-Chi Liang

cmd/exception: support RISC-V compressed instruction

2023-10-04T09:59:40Z

Eliminating the C extension on application processors is under discussion. Support emitting a compressed instruction. This will lead to an illegal instruction exception if the C extension is not implemented. For testing build qemu-riscv64_defconfig with CONFIG_RISCV_ISA_C=n and run with qemu-system-riscv64 -M virt -bios u-boot -nographic -cpu rv64,c=false => exception compressed Unhandled exception: Illegal instruction EPC: 0000000087731708 RA: 000000008773fe44 TVAL: 0000000000004501 EPC: 000000008001b708 RA: 0000000080029e44 reloc adjusted Code: 0b93 0000 0493 0000 0993 0000 f06f ccdf (4501) Signed-off-by: Heinrich Schuchardt Reviewed-by: Leo Yu-Chi Liang

cmd/exception: support ebreak exception on RISC-V

2021-05-05T08:13:12Z

The ebreak instruction should generate a breakpoint exception. Signed-off-by: Heinrich Schuchardt Reviewed-by: Bin Meng Reviewed-by: Rick Chen

cmd: exception: unaligned data access on RISC-V

2020-08-14T06:39:34Z

The command 'exception' can be used to test the handling of exceptions. Currently the exception command only allows to create an illegal instruction exception on RISC-V. Provide a sub-command 'exception unaligned' to cause a misaligned load address exception. Adjust the online help for 'exception undefined'. Signed-off-by: Heinrich Schuchardt Reviewed-by: Rick Chen

command: Remove the cmd_tbl_t typedef

2020-05-18T22:36:55Z

We should not use typedefs in U-Boot. They cannot be used as forward declarations which means that header files must include the full header to access them. Drop the typedef and rename the struct to remove the _s suffix which is now not useful. This requires quite a few header-file additions. Signed-off-by: Simon Glass

cmd: add exception command

2019-04-22T16:06:39Z

The 'exception' command allows to test exception handling. This implementation supports ARM, x86, RISC-V and the following exceptions: * 'breakpoint' - prefetch abort exception (ARM 32bit only) * 'unaligned' - data abort exception (ARM only) * 'undefined' - undefined instruction exception Signed-off-by: Heinrich Schuchardt