5 files changed, 49 insertions, 34 deletions
diff --git a/sysdeps/unix/sysv/linux/Makefile b/sysdeps/unix/sysv/linux/Makefile
index 70fd137dbc..db05c9e66b 100644
--- a/sysdeps/unix/sysv/linux/Makefile
+++ b/sysdeps/unix/sysv/linux/Makefile
@@ -40,28 +40,11 @@ sysdep_headers += sys/mount.h sys/acct.h sys/sysctl.h \
 
 tests += tst-clone
 
-# Generate the list of SYS_* macros for the system calls (__NR_* macros).
-
-# If there is more than one syscall list for different architecture
-# variants, the CPU/Makefile defines syscall-list-variants to be a
-# list of names for those variants (e.g. 32bit 64bit), and, for each
-# variant, defines syscall-list-$(variant)-options to be compiler
-# options to cause <asm/unistd.h> to define the desired list of
-# syscalls and syscall-list-$(variant)-condition to be the condition
-# for those options to use in a C #if condition.
-# syscall-list-includes may be defined to a list of headers to include
-# in the generated header, if the default does not suffice.
-
-ifndef syscall-list-variants
-syscall-list-variants := default
-syscall-list-default-options :=
-syscall-list-default-condition :=
-endif
-
-ifndef syscall-list-includes
-syscall-list-includes := bits/wordsize.h
+ifndef abi-list-includes
+abi-list-includes := bits/wordsize.h
 endif
 
+# Generate the list of SYS_* macros for the system calls (__NR_* macros).
 $(objpfx)bits/syscall%h $(objpfx)bits/syscall%d: ../sysdeps/unix/sysv/linux/sys/syscall.h
 	$(make-target-directory)
 	{ \
@@ -71,30 +54,30 @@ $(objpfx)bits/syscall%h $(objpfx)bits/syscall%d: ../sysdeps/unix/sysv/linux/sys/
 	 echo '# error "Never use <bits/syscall.h> directly; include <sys/syscall.h> instead."'; \
 	 echo '#endif'; \
 	 echo ''; \
-	 $(foreach h,$(syscall-list-includes), echo '#include <$(h)>';) \
+	 $(foreach h,$(abi-list-includes), echo '#include <$(h)>';) \
 	 echo ''; \
-	 $(foreach v,$(syscall-list-variants),\
+	 $(foreach v,$(abi-list-variants),\
 	 $(CC) -E -MD -MP -MF $(@:.h=.d)-t$(v) -MT '$(@:.d=.h) $(@:.h=.d)' \
-	       -x c $(sysincludes) $< $(syscall-list-$(v)-options) \
+	       -x c $(sysincludes) $< $(abi-list-$(v)-options) \
 	       -D_LIBC -dM | \
 	 sed -n 's@^#define __NR_\([^ ]*\) .*$$@#define SYS_\1 __NR_\1@p' | \
 	 LC_ALL=C sort > $(@:.d=.h).new$(v); \
-	 $(if $(syscall-list-$(v)-condition),\
-	 echo '#if $(syscall-list-$(v)-condition)';) \
+	 $(if $(abi-list-$(v)-condition),\
+	 echo '#if $(abi-list-$(v)-condition)';) \
 	 cat $(@:.d=.h).new$(v); \
-	 $(if $(syscall-list-$(v)-condition),echo '#endif';) \
+	 $(if $(abi-list-$(v)-condition),echo '#endif';) \
 	 rm -f $(@:.d=.h).new$(v); \
 	 ) \
 	} > $(@:.d=.h).new
 	mv -f $(@:.d=.h).new $(@:.d=.h)
 ifneq (,$(objpfx))
 	sed $(sed-remove-objpfx) \
-	 $(foreach v,$(syscall-list-variants),$(@:.h=.d)-t$(v)) > $(@:.h=.d)-t3
+	 $(foreach v,$(abi-list-variants),$(@:.h=.d)-t$(v)) > $(@:.h=.d)-t3
 else
-	cat $(foreach v,$(syscall-list-variants),$(@:.h=.d)-t$(v)) \
+	cat $(foreach v,$(abi-list-variants),$(@:.h=.d)-t$(v)) \
 	 > $(@:.h=.d)-t3
 endif
-	rm -f $(foreach v,$(syscall-list-variants),$(@:.h=.d)-t$(v))
+	rm -f $(foreach v,$(abi-list-variants),$(@:.h=.d)-t$(v))
 	mv -f $(@:.h=.d)-t3 $(@:.h=.d)
 
 ifndef no_deps
diff --git a/sysdeps/unix/sysv/linux/i386/Makefile b/sysdeps/unix/sysv/linux/i386/Makefile
index fc5a524ebf..6301affc52 100644
--- a/sysdeps/unix/sysv/linux/i386/Makefile
+++ b/sysdeps/unix/sysv/linux/i386/Makefile
@@ -1,3 +1,21 @@
+# We don't need any header files.
+abi-list-includes :=
+
+# The default ABI is 32.
+default-abi := 32
+
+abi-list-variants := 32 64 x32
+
+abi-list-32-options := -D__i386__ -U__x86_64__
+abi-list-32-condition := !defined __x86_64__
+abi-list-32-ld-soname := ld-linux.so.2
+abi-list-64-options := -U__i386__ -D__x86_64__ -U__ILP32__ -D__LP64__
+abi-list-64-condition := defined __x86_64__ && defined __LP64__
+abi-list-64-ld-soname := ld-linux-x86-64.so.2
+abi-list-x32-options := -U__i386__ -D__x86_64__ -D__ILP32__ -U__LP64__
+abi-list-x32-condition := defined __x86_64__ && defined __ILP32__
+abi-list-x32-ld-soname := ld-linux-x32.so.2
+
 ifeq ($(subdir),misc)
 sysdep_routines += ioperm iopl vm86 call_pselect6 call_fallocate
 sysdep_headers += sys/elf.h sys/perm.h sys/reg.h sys/vm86.h sys/debugreg.h sys/io.h
diff --git a/sysdeps/unix/sysv/linux/x86_64/64/Makefile b/sysdeps/unix/sysv/linux/x86_64/64/Makefile
new file mode 100644
index 0000000000..a7b6dc5a53
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/x86_64/64/Makefile
@@ -0,0 +1,2 @@
+# The default ABI is 64.
+default-abi := 64
diff --git a/sysdeps/unix/sysv/linux/x86_64/Makefile b/sysdeps/unix/sysv/linux/x86_64/Makefile
index 59a6b0a8ba..2b36544e3f 100644
--- a/sysdeps/unix/sysv/linux/x86_64/Makefile
+++ b/sysdeps/unix/sysv/linux/x86_64/Makefile
@@ -1,8 +1,17 @@
-syscall-list-variants := 32bit 64bit
-syscall-list-32bit-options := -D__i386__ -U__x86_64__
-syscall-list-32bit-condition := __WORDSIZE == 32
-syscall-list-64bit-options := -U__i386__ -D__x86_64__
-syscall-list-64bit-condition := __WORDSIZE == 64
+# We don't need any header files.
+abi-list-includes :=
+
+abi-list-variants := 32 64 x32
+
+abi-list-32-options := -D__i386__ -U__x86_64__
+abi-list-32-condition := !defined __x86_64__
+abi-list-32-ld-soname := ld-linux.so.2
+abi-list-64-options := -U__i386__ -D__x86_64__ -U__ILP32__ -D__LP64__
+abi-list-64-condition := defined __x86_64__ && defined __LP64__
+abi-list-64-ld-soname := ld-linux-x86-64.so.2
+abi-list-x32-options := -U__i386__ -D__x86_64__ -D__ILP32__ -U__LP64__
+abi-list-x32-condition := defined __x86_64__ && defined __ILP32__
+abi-list-x32-ld-soname := ld-linux-x32.so.2
 
 ifeq ($(subdir),misc)
 sysdep_routines += ioperm iopl
diff --git a/sysdeps/unix/sysv/linux/x86_64/x32/Makefile b/sysdeps/unix/sysv/linux/x86_64/x32/Makefile
index aa78238a0d..ecbdefb2d3 100644
--- a/sysdeps/unix/sysv/linux/x86_64/x32/Makefile
+++ b/sysdeps/unix/sysv/linux/x86_64/x32/Makefile
@@ -1,3 +1,6 @@
+# The default ABI is x32.
+default-abi := x32
+
 ifeq ($(subdir),misc)
 sysdep_routines += arch_prctl
 endif