[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
[Qemu-devel] [RFC PATCH-for-4.1? v2 0/5] semihosting: Build with CONFIG_
From: |
Philippe Mathieu-Daudé |
Subject: |
[Qemu-devel] [RFC PATCH-for-4.1? v2 0/5] semihosting: Build with CONFIG_SEMIHOSTING disabled |
Date: |
Mon, 15 Jul 2019 17:22:20 +0200 |
Amusingly Miroslav and myself hit this issue at the same time.
Note now that "config-devices.h" exists (commit 6c22ea9d83) I could use
#include "config-devices.h" to implement Alex's suggestion to avoid a stub:
https://lists.gnu.org/archive/html/qemu-devel/2019-06/msg03607.html
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.
Since v1: https://lists.gnu.org/archive/html/qemu-devel/2019-05/msg07267.html
- Always enable semihosting on linux-user
$ git backport-diff -u v1
Key:
[----] : patches are identical
[####] : number of functional differences between upstream/downstream patch
[down] : patch is downstream-only (new)
The flags [FC] indicate (F)unctional and (C)ontextual differences, respectively
001/5:[down] 'target/arm: Always enable CONFIG_SEMIHOSTING'
002/5:[down] 'target/mips: Always enable CONFIG_SEMIHOSTING'
003/5:[down] 'hw/semihosting: Allow this feature to be disabled'
004/5:[0004] [FC] 'target/arm: Add stubs to build with CONFIG_SEMIHOSTING
disabled'
005/5:[0005] [FC] 'target/mips: Add stubs to build with CONFIG_SEMIHOSTING
disabled'
Philippe Mathieu-Daudé (5):
target/arm: Always enable CONFIG_SEMIHOSTING
target/mips: Always enable CONFIG_SEMIHOSTING
hw/semihosting: Allow this feature to be disabled
target/arm: Add stubs to build with CONFIG_SEMIHOSTING disabled
target/mips: Add stubs to build with CONFIG_SEMIHOSTING disabled
default-configs/aarch64-linux-user-common.mak | 4 ++++
default-configs/aarch64-linux-user.mak | 2 ++
default-configs/aarch64_be-linux-user.mak | 2 ++
default-configs/arm-linux-user-common.mak | 4 ++++
default-configs/arm-linux-user.mak | 2 ++
default-configs/arm-softmmu.mak | 4 +++-
default-configs/armeb-linux-user.mak | 2 ++
default-configs/mips-linux-user-common.mak | 4 ++++
default-configs/mips-linux-user.mak | 2 ++
default-configs/mips-softmmu-common.mak | 2 +-
default-configs/mips64-linux-user.mak | 2 ++
default-configs/mips64el-linux-user.mak | 2 ++
default-configs/mipsel-linux-user.mak | 2 ++
default-configs/mipsn32-linux-user.mak | 2 ++
default-configs/mipsn32el-linux-user.mak | 2 ++
hw/semihosting/Kconfig | 3 ++-
target/arm/Makefile.objs | 3 ++-
target/arm/arm-semi-stubs.c | 21 ++++++++++++++++++
target/mips/Makefile.objs | 3 ++-
target/mips/mips-semi-stubs.c | 22 +++++++++++++++++++
20 files changed, 85 insertions(+), 5 deletions(-)
create mode 100644 default-configs/aarch64-linux-user-common.mak
create mode 100644 default-configs/arm-linux-user-common.mak
create mode 100644 default-configs/mips-linux-user-common.mak
create mode 100644 target/arm/arm-semi-stubs.c
create mode 100644 target/mips/mips-semi-stubs.c
--
2.20.1
- [Qemu-devel] [RFC PATCH-for-4.1? v2 0/5] semihosting: Build with CONFIG_SEMIHOSTING disabled,
Philippe Mathieu-Daudé <=
- [Qemu-devel] [RFC PATCH-for-4.1? v2 1/5] target/arm: Always enable CONFIG_SEMIHOSTING, Philippe Mathieu-Daudé, 2019/07/15
- [Qemu-devel] [RFC PATCH-for-4.1? v2 2/5] target/mips: Always enable CONFIG_SEMIHOSTING, Philippe Mathieu-Daudé, 2019/07/15
- [Qemu-devel] [RFC PATCH-for-4.1? v2 3/5] hw/semihosting: Allow this feature to be disabled, Philippe Mathieu-Daudé, 2019/07/15
- [Qemu-devel] [RFC PATCH-for-4.1? v2 4/5] target/arm: Add stubs to build with CONFIG_SEMIHOSTING disabled, Philippe Mathieu-Daudé, 2019/07/15
- [Qemu-devel] [RFC PATCH-for-4.1? v2 5/5] target/mips: Add stubs to build with CONFIG_SEMIHOSTING disabled, Philippe Mathieu-Daudé, 2019/07/15
- Re: [Qemu-devel] [RFC PATCH-for-4.1? v2 0/5] semihosting: Build with CONFIG_SEMIHOSTING disabled, no-reply, 2019/07/15
- Re: [Qemu-devel] [RFC PATCH-for-4.1? v2 0/5] semihosting: Build with CONFIG_SEMIHOSTING disabled, Philippe Mathieu-Daudé, 2019/07/16
- Re: [Qemu-devel] [RFC PATCH-for-4.1? v2 0/5] semihosting: Build with CONFIG_SEMIHOSTING disabled, no-reply, 2019/07/16