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MIPS/GAS/testsuite: Support negated targets for default architecture

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Add support for giving negated targets in the list of targets passed to
`mips_arch_create' for the purpose of setting the default architecture.
This is so that a subset of targets can be excluded from matching within
a broader set of targets.
This commit is contained in:
Maciej W. Rozycki 2025-02-15 01:30:58 +00:00
parent 0813652eef
commit 1c065666dd
1 changed files with 13 additions and 5 deletions
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18
gas/testsuite/gas/mips/mips.exp
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@ -124,11 +124,15 @@ proc mips_arch_init {} {
# the entry specified by EXTENDS. (The new architecture is considered
# to extend the capabilities provided by that architecture.)
#
# If DEFAULT_FOR_TARGETS is specified, it is a list of targets for which
# this architecture is the default architecture. If "istarget" returns
# true for any of the targets in the list, a "default" entry will be
# added to the architecture array which indicates that ARCH is the default
# architecture.
# If DEFAULT_FOR_TARGETS is specified, it is a list of targets to match
# against for the purpose of setting the default architecture. Entries
# are examined in turn with any preceding "!" stripped until either all
# have been processed or "istarget" returns true for a match. In the
# case of a match a "default" entry will be added to the architecture
# array which indicates that ARCH is the default architecture unless
# the match was for a target preceded by "!". This lets an early match
# against a more specific entry preceded by "!" prevent from matching a
# more general entry placed later in the list.
proc mips_arch_create {arch gprsize extends props as_flags objdump_flags
{default_for_targets {}}} {
global mips_arches
@ -154,6 +158,10 @@ proc mips_arch_create {arch gprsize extends props as_flags objdump_flags
# Set as default if appropriate.
foreach target $default_for_targets {
if { [string match {!*} $target]
&& [istarget [string range $target 1 end]] } {
break
}
if { [istarget $target] } {
if { [info exists mips_arches(default)] } {
error "mips_arch_create: default arch already exists"