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| author | Kautuk Consul <kconsul@ventanamicro.com> | 2022-12-07 14:42:34 +0300 |
|---|---|---|
| committer | Leo Yu-Chi Liang <ycliang@andestech.com> | 2022-12-08 10:15:22 +0300 |
| commit | 1c03ab9f4bdf19d1ac7afc157788bd0102ccd969 (patch) | |
| tree | 6ba8dbdc7c9742719cdf35452392d40470584de2 /lib/Kconfig | |
| parent | 14f2d087a3d6347ba0ff7a7e9aaff6955e53e7a8 (diff) | |
| download | u-boot-1c03ab9f4bdf19d1ac7afc157788bd0102ccd969.tar.xz | |
lib: Add common semihosting library
We factor out the arch-independent parts of the ARM semihosting
implementation as a common library so that it can be shared
with RISC-V.
Signed-off-by: Kautuk Consul <kconsul@ventanamicro.com>
Reviewed-by: Leo Yu-Chi Liang <ycliang@andestech.com>
Diffstat (limited to 'lib/Kconfig')
| -rw-r--r-- | lib/Kconfig | 47 |
1 files changed, 47 insertions, 0 deletions
diff --git a/lib/Kconfig b/lib/Kconfig index 6abe1d0a86..b8833e0183 100644 --- a/lib/Kconfig +++ b/lib/Kconfig @@ -71,6 +71,53 @@ config HAVE_PRIVATE_LIBGCC config LIB_UUID bool +config SEMIHOSTING + bool "Support semihosting" + depends on ARM + help + Semihosting is a method for a target to communicate with a host + debugger. It uses special instructions which the debugger will trap + on and interpret. This allows U-Boot to read/write files, print to + the console, and execute arbitrary commands on the host system. + + Enabling this option will add support for reading and writing files + on the host system. If you don't have a debugger attached then trying + to do this will likely cause U-Boot to hang. Say 'n' if you are unsure. + +config SEMIHOSTING_FALLBACK + bool "Recover gracefully when semihosting fails" + depends on SEMIHOSTING && ARM64 + default y + help + Normally, if U-Boot makes a semihosting call and no debugger is + attached, then it will panic due to a synchronous abort + exception. This config adds an exception handler which will allow + U-Boot to recover. Say 'y' if unsure. + +config SPL_SEMIHOSTING + bool "Support semihosting in SPL" + depends on SPL && ARM + help + Semihosting is a method for a target to communicate with a host + debugger. It uses special instructions which the debugger will trap + on and interpret. This allows U-Boot to read/write files, print to + the console, and execute arbitrary commands on the host system. + + Enabling this option will add support for reading and writing files + on the host system. If you don't have a debugger attached then trying + to do this will likely cause U-Boot to hang. Say 'n' if you are unsure. + +config SPL_SEMIHOSTING_FALLBACK + bool "Recover gracefully when semihosting fails in SPL" + depends on SPL_SEMIHOSTING && ARM64 + select ARMV8_SPL_EXCEPTION_VECTORS + default y + help + Normally, if U-Boot makes a semihosting call and no debugger is + attached, then it will panic due to a synchronous abort + exception. This config adds an exception handler which will allow + U-Boot to recover. Say 'y' if unsure. + config PRINTF bool default y |