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authorJan Beulich <jbeulich@suse.com>2022-09-30 10:14:58 +0200
committerJan Beulich <jbeulich@suse.com>2022-09-30 10:14:58 +0200
commit79d635fc64ba9ca97c24c0c52c9924dba77e9527 (patch)
treeea21f6c79dccdb5b8f587d2560a1bbd2a220fcdc /opcodes/Makefile.in
parent7b94647ad00bb096348ea074fa2f19e1873eb0a7 (diff)
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x86: correct build dependencies in opcodes/
With the command in the rule merely being "echo", i386-tbl.h won't be rebuilt if missing, when at the same time i386-init.h is present and up-to-date. Use a pattern rule instead to express the multiple targets correctly (the &: rule separator is supported only by GNU make 4.3 and newer). Note that now, for the opposite case to work (i386-tbl.h is up-to-date but i386-init.h is missing), i386-init.h also needs mentioning as a dependency somewhere: Add a fake dependency for i386-opc.lo ("fake" because i386-opc.c doesn't include that header). At the same time use $(AM_V_GEN) in the actual rule, replacing the earlier (open-coded) "echo". And while there also drop a duplicate dependency of i386-gen.o on i386-opc.h.
Diffstat (limited to 'opcodes/Makefile.in')
-rw-r--r--opcodes/Makefile.in14
1 files changed, 8 insertions, 6 deletions
diff --git a/opcodes/Makefile.in b/opcodes/Makefile.in
index 581747e..fe4539d 100644
--- a/opcodes/Makefile.in
+++ b/opcodes/Makefile.in
@@ -1527,18 +1527,20 @@ i386-gen$(EXEEXT_FOR_BUILD): i386-gen.o $(BUILD_LIB_DEPS)
i386-gen.o: i386-gen.c i386-opc.h $(srcdir)/../include/opcode/i386.h \
$(INCDIR)/ansidecl.h $(INCDIR)/getopt.h $(INCDIR)/hashtab.h \
$(INCDIR)/libiberty.h $(INCDIR)/opcode/i386.h $(INCDIR)/safe-ctype.h \
- config.h i386-opc.h sysdep.h
+ config.h sysdep.h
$(COMPILE_FOR_BUILD) -c $(srcdir)/i386-gen.c
-$(srcdir)/i386-tbl.h: $(srcdir)/i386-init.h
- @echo $@
-
-$(srcdir)/i386-init.h: @MAINT@ i386-gen$(EXEEXT_FOR_BUILD) i386-opc.tbl i386-reg.tbl i386-opc.h
- $(CPP) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) - \
+# i386-gen will generate both headers in one go. Use a pattern rule to properly
+# express this, with the inner dash ('-') arbitrarily chosen to be the stem.
+$(srcdir)/i386%tbl.h $(srcdir)/i386%init.h: @MAINT@ i386-gen$(EXEEXT_FOR_BUILD) i386-opc.tbl i386-reg.tbl i386-opc.h
+ $(AM_V_GEN)$(CPP) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) - \
< $(srcdir)/i386-opc.tbl \
| ./i386-gen$(EXEEXT_FOR_BUILD) --srcdir $(srcdir)
i386-opc.lo: $(srcdir)/i386-tbl.h
+# While not really a dependency, specify i386-init.h here as well to make sure
+# it is generated even if i386-tbl.h is present and up-to-date.
+i386-opc.lo: $(srcdir)/i386-init.h
ia64-gen$(EXEEXT_FOR_BUILD): ia64-gen.o $(BUILD_LIB_DEPS)
$(AM_V_CCLD)$(LINK_FOR_BUILD) ia64-gen.o $(BUILD_LIBS)