From: "Philippe Mathieu-Daudé" <philmd@redhat.com>
To: qemu-devel@nongnu.org
Cc: "Peter Maydell" <peter.maydell@linaro.org>,
"Aleksandar Rikalo" <arikalo@wavecomp.com>,
"Philippe Mathieu-Daudé" <philmd@redhat.com>,
"Richard Henderson" <richard.henderson@linaro.org>,
qemu-arm@nongnu.org,
"Aleksandar Markovic" <amarkovic@wavecomp.com>,
"Paolo Bonzini" <pbonzini@redhat.com>,
"Miroslav Rezanina" <mrezanin@redhat.com>,
"Alex Bennée" <alex.bennee@linaro.org>,
"Aurelien Jarno" <aurelien@aurel32.net>
Subject: [Qemu-devel] [RFC PATCH 0/2] target: Build with CONFIG_SEMIHOSTING disabled
Date: Fri, 31 May 2019 17:47:33 +0200 [thread overview]
Message-ID: <20190531154735.20809-1-philmd@redhat.com> (raw)
Amusingly Miroslav and myself hit this issue at the same time.
Currently there is no way to pass a CONFIG_X to sources in target/,
except via a Makefile rule (and filling with stubs).
Paolo says this is on purpose, CONFIG_X selectors are meant for
devices and we try to avoid having config-devices.mak in
config-target.h.
Some know (arch-specific) limitations are:
- MIPS ITU is accessed by coprocessor instr (ISA feature)
- MIPS timer is accessed by coprocessor instr (ISA feature)
- MIPS semihosting (ISA feature?)
- ARM semihosting (ISA feature?)
- ARMv7 NVIC (device)
This series attempt to fix this the most trivial way, adding
stubs for unreachable code.
Philippe Mathieu-Daudé (2):
target/arm: Add stubs to build with CONFIG_SEMIHOSTING disabled
target/mips: Add stubs to build with CONFIG_SEMIHOSTING disabled
target/arm/Makefile.objs | 3 ++-
target/arm/arm-semi-stubs.c | 21 +++++++++++++++++++++
target/mips/Makefile.objs | 3 ++-
target/mips/mips-semi-stubs.c | 23 +++++++++++++++++++++++
4 files changed, 48 insertions(+), 2 deletions(-)
create mode 100644 target/arm/arm-semi-stubs.c
create mode 100644 target/mips/mips-semi-stubs.c
--
2.20.1
next reply other threads:[~2019-05-31 15:51 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-05-31 15:47 Philippe Mathieu-Daudé [this message]
2019-05-31 15:47 ` [Qemu-devel] [RFC PATCH 1/2] target/arm: Add stubs to build with CONFIG_SEMIHOSTING disabled Philippe Mathieu-Daudé
2019-06-17 15:19 ` Alex Bennée
2019-06-17 15:33 ` Philippe Mathieu-Daudé
2019-06-18 12:02 ` Philippe Mathieu-Daudé
2019-05-31 15:47 ` [Qemu-devel] [RFC PATCH 2/2] target/mips: " Philippe Mathieu-Daudé
2019-05-31 16:18 ` [Qemu-devel] [RFC PATCH 0/2] target: Build " no-reply
2019-05-31 16:21 ` Peter Maydell
2019-05-31 16:40 ` Philippe Mathieu-Daudé
2019-05-31 16:54 ` Miroslav Rezanina
2019-05-31 17:04 ` Peter Maydell
2019-06-01 9:34 ` Alex Bennée
2019-06-01 9:41 ` Peter Maydell
2019-06-03 8:11 ` Paolo Bonzini
2019-06-15 10:26 ` Philippe Mathieu-Daudé
2019-06-16 15:29 ` Aleksandar Markovic
2019-05-31 17:06 ` Peter Maydell
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