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Description: use generic march on arm64 when using 'default' machine
When building for generic distribution we need a stable baseline
architecture, or depending on the build worker the result will vary.
Force the default flags if the user explicitly sets marchine=default
at configuration time.
Author: Luca Boccassi <bluca@debian.org>
Forwarded: https://patches.dpdk.org/patch/49259/
--- a/config/arm/meson.build
+++ b/config/arm/meson.build
@@ -6,6 +6,7 @@
march_opt = '-march=@0@'.format(machine)
arm_force_native_march = false
+arm_force_default_march = machine == 'default'
machine_args_generic = [
['default', ['-march=armv8-a+crc+crypto']],
@@ -102,7 +103,11 @@ else
cmd_generic = ['generic', '', '', 'default', '']
cmd_output = cmd_generic # Set generic by default
machine_args = [] # Clear previous machine args
- if not meson.is_cross_build()
+ if arm_force_default_march and not meson.is_cross_build()
+ machine = impl_generic
+ cmd_output = cmd_generic
+ impl_pn = 'default'
+ elif not meson.is_cross_build()
# The script returns ['Implementer', 'Variant', 'Architecture',
# 'Primary Part number', 'Revision']
detect_vendor = find_program(join_paths(
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