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2021-03-24semihosting/arm-compat-semi: don't use SET_ARG to report SYS_HEAPINFOAlex Bennée1-1/+5
As per the spec: the PARAMETER REGISTER contains the address of a pointer to a four-field data block. So we need to follow arg0 and place the results of SYS_HEAPINFO there. Fixes: 3c37cfe0b1 ("semihosting: Change internal common-semi interfaces to use CPUState *") Signed-off-by: Alex Bennée <alex.bennee@linaro.org> Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Cc: Bug 1915925 <1915925@bugs.launchpad.net> Cc: Keith Packard <keithp@keithp.com> Bug: https://bugs.launchpad.net/bugs/1915925 Message-Id: <20210323165308.15244-8-alex.bennee@linaro.org>
2021-03-24semihosting/arm-compat-semi: unify GET/SET_ARG helpersAlex Bennée1-37/+19
>>>From the semihosting point of view what we want to know is the current mode of the processor. Unify this into a single helper and allow us to use the same GET/SET_ARG helpers for the rest of the code. Having the helper will also be useful later. Note: we aren't currently testing riscv32 due to missing toolchain for check-tcg tests. Signed-off-by: Alex Bennée <alex.bennee@linaro.org> Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Keith Packard <keithp@keithp.com> Message-Id: <20210323165308.15244-7-alex.bennee@linaro.org>
2021-03-10semihosting: Move hw/semihosting/ -> semihosting/Philippe Mathieu-Daudé6-0/+1726
With the exception of hw/core/, the hw/ directory only contains device models used in system emulation. Semihosting is also used by user emulation. As a generic feature, move it out of hw/ directory. Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Signed-off-by: Alex Bennée <alex.bennee@linaro.org> Message-Id: <20210226131356.3964782-3-f4bug@amsat.org> Message-Id: <20210305135451.15427-3-alex.bennee@linaro.org>