meson: linux-user

The most interesting or most complicated part here is the syscall_nr.h
generators.  In order to keep the generation logic all in meson.build,
I am adding to config_target the name of the .tbl file, and making the
generated file syscall<SUFFIX>_nr.h for input file syscall<SUFFIX>.tbl.

For architectures where the input file is not named syscall_nr.tbl,
syscall_nr.h has to be a source file; it's just a forwarder for x86
(i386/x86_64), while for MIPS64 it chooses between N32 and N64 ABIs.

Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

1 files changed, 10 insertions, 0 deletions

diff --git a/linux-user/arm/meson.build b/linux-user/arm/meson.build
new file mode 100644
index 0000000000..432984b58e
--- /dev/null
+++ b/linux-user/arm/meson.build
@@ -0,0 +1,10 @@
+linux_user_ss.add(when: 'TARGET_AARCH64', if_true: files('semihost.c'))
+linux_user_ss.add(when: 'TARGET_ARM', if_true: files('semihost.c'))
+
+subdir('nwfpe')
+
+syscall_nr_generators += {
+  'arm': generator(sh,
+                   arguments: [ meson.current_source_dir() / 'syscallhdr.sh', '@INPUT@', '@OUTPUT@', '@EXTRA_ARGS@' ],
+                   output: '@BASENAME@_nr.h')
+}