configure: Define TARGET_LONG_BITS in configs/targets/*.mak

Define TARGET_LONG_BITS in each target's configure fragment.
Do this without removing the define in target/*/cpu-param.h
so that errors ar

configure: Define TARGET_LONG_BITS in configs/targets/*.mak

Define TARGET_LONG_BITS in each target's configure fragment.
Do this without removing the define in target/*/cpu-param.h
so that errors are caught like so:

In file included from .../src/include/exec/cpu-defs.h:26,
from ../src/target/hppa/cpu.h:24,
from ../src/linux-user/qemu.h:4,
from ../src/linux-user/hppa/cpu_loop.c:21:
../src/target/hppa/cpu-param.h:11: error: "TARGET_LONG_BITS" redefined [-Werror]
11 | #define TARGET_LONG_BITS 64
|
In file included from .../src/include/qemu/osdep.h:36,
from ../src/linux-user/hppa/cpu_loop.c:20:
./hppa-linux-user-config-target.h:32: note: this is the location of the previous definition
32 | #define TARGET_LONG_BITS 32
|
cc1: all warnings being treated as errors

Reviewed-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

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target/alpha: Remove TARGET_ALIGNED_ONLY

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

configs: rename default-configs to configs and reorganise

In preparation for offering variation to our build configurations lets
move everything and rename it to default. Common included base config

configs: rename default-configs to configs and reorganise

In preparation for offering variation to our build configurations lets
move everything and rename it to default. Common included base configs
are also renamed.

During the cleanup the stale usb.mak and pci.mak references were
removed from MAINTAINERS.

Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Cc: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20210707131744.26027-5-alex.bennee@linaro.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

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default-configs: remove redundant keys

TARGET_BASE_ARCH and TARGET_ABI_DIR are 99% of the time the same
as TARGET_ARCH, remove them if so.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

default-configs: use TARGET_ARCH key

Replace the individual TARGET_*=y lines with TARGET_ARCH,
similar to how TARGET_BASE_ARCH is handled already.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

configure: remove target configuration

The config-target.mak files are small constant, we can therefore just
write them down explicitly.

This removes a pretty large part of the configure script, in

configure: remove target configuration

The config-target.mak files are small constant, we can therefore just
write them down explicitly.

This removes a pretty large part of the configure script, including the
whole logic to detect which accelerators are supported by each target.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

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