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authorAndreas Jaeger <aj@suse.de>2002-08-21 08:06:35 +0000
committerAndreas Jaeger <aj@suse.de>2002-08-21 08:06:35 +0000
commitf04668099b55068a5e0d96dcc78f2f294a88dd56 (patch)
tree83e34edf519797fa1b1bb2c4a8c68ec4b9817326 /sysdeps
parent6dbdc56c3d1b52090fdff1a41ea6edbb55a5b8ea (diff)
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Generate bits/syscall.h with biarch support.
Diffstat (limited to 'sysdeps')
-rw-r--r--sysdeps/unix/sysv/linux/x86_64/Makefile42
1 files changed, 42 insertions, 0 deletions
diff --git a/sysdeps/unix/sysv/linux/x86_64/Makefile b/sysdeps/unix/sysv/linux/x86_64/Makefile
index b14d425..e1b4a95 100644
--- a/sysdeps/unix/sysv/linux/x86_64/Makefile
+++ b/sysdeps/unix/sysv/linux/x86_64/Makefile
@@ -1,4 +1,46 @@
ifeq ($(subdir),misc)
sysdep_routines += ioperm iopl
sysdep_headers += sys/perm.h sys/reg.h sys/debugreg.h sys/io.h
+
+no_syscall_list_h = 1
+
+# Generate the list of SYS_* macros for the system calls (__NR_* macros).
+$(objpfx)syscall-%.h $(objpfx)syscall-%.d: ../sysdeps/unix/sysv/linux/sys/syscall.h
+ rm -f $(@:.h=.d)-t
+ { \
+ echo '/* Generated at libc build time from kernel syscall list. */';\
+ echo ''; \
+ echo '#ifndef _SYSCALL_H'; \
+ echo '# error "Never use <bits/syscall.h> directly; include <sys/syscall.h> instead."'; \
+ echo '#endif'; \
+ echo ''; \
+ SUNPRO_DEPENDENCIES='$(@:.h=.d)-t $@' \
+ $(CC) -E -x c $(sysincludes) $< -U__x86_64__ -D_LIBC -dM | \
+ sed -n 's@^#define __NR_\([^ ]*\) .*$$@#define SYS_\1 __NR_\1@p' | \
+ LC_ALL=C sort > $(@:.d=.h).new32; \
+ SUNPRO_DEPENDENCIES='$(@:.h=.d)-t $@' \
+ $(CC) -E -x c $(sysincludes) $< -D__x86_64 -D_LIBC -dM | \
+ sed -n 's@^#define __NR_\([^ ]*\) .*$$@#define SYS_\1 __NR_\1@p' | \
+ LC_ALL=C sort > $(@:.d=.h).new64; \
+ if cmp -s $(@:.d=.h).new32 $(@:.d=.h).new64; then \
+ cat $(@:.d=.h).new32; \
+ else \
+ echo '#include <bits/wordsize.h>'; \
+ echo ''; \
+ comm -12 $(@:.d=.h).new32 $(@:.d=.h).new64; \
+ echo '#if __WORDSIZE == 64'; \
+ comm -13 $(@:.d=.h).new32 $(@:.d=.h).new64; \
+ echo '#else'; \
+ comm -23 $(@:.d=.h).new32 $(@:.d=.h).new64; \
+ echo '#endif'; \
+ fi; \
+ rm -f $(@:.d=.h).new32 $(@:.d=.h).new64; \
+ } > $(@:.d=.h).new
+ mv -f $(@:.d=.h).new $(@:.d=.h)
+ sed < $(@:.h=.d)-t > $(@:.h=.d)-t2 \
+ -e 's,$(subst .,\.,$@),$(patsubst $(objpfx)%,$$(objpfx)%,\
+ $(@:.d=.h) $(@:.h=.d)),'
+ rm -f $(@:.h=.d)-t
+ mv -f $(@:.h=.d)-t2 $(@:.h=.d)
+
endif