diff options
Diffstat (limited to 'sysdeps/unix')
| -rw-r--r-- | sysdeps/unix/sysv/linux/Makefile | 41 | ||||
| -rw-r--r-- | sysdeps/unix/sysv/linux/syscall.h | 8 |
2 files changed, 26 insertions, 23 deletions
diff --git a/sysdeps/unix/sysv/linux/Makefile b/sysdeps/unix/sysv/linux/Makefile index ec5119e408..8d351c4046 100644 --- a/sysdeps/unix/sysv/linux/Makefile +++ b/sysdeps/unix/sysv/linux/Makefile @@ -18,29 +18,24 @@ ifeq ($(subdir), misc) sysdep_routines += mount umount xmknod s_ptrace s_sysctl sysctl llseek \ setfsgid setfsuid sysinfo uselib s_reboot -sysdep_headers += sys/mount.h sys/sysinfo.h sys/acct.h sys/sysctl.h sys/module.h \ - sys/io.h sys/klog.h sys/kdaemon.h - -install-others += $(includedir)/sys/syscall.h - -$(includedir)/sys/syscall.h:: - @rm -f $(objpfx)syscall.h $(objpfx)syscall.sed - @(os=`uname -sr`; \ - echo -e '1i\\\n#ifndef _SYS_SYSCALL_H\\'; \ - echo -e '#define _SYS_SYSCALL_H\t1\\\n\\'; \ - echo -e -n '/* This file is automatically generated as part of '; \ - echo -e 'GNU libc-$(version)\\'; \ - echo -e " on a system running $$os. */\\"; echo; \ - echo -e -n 's/#define __NR_\\([A-Za-z0-9_]*\\)[ \t]*__NR_\\(.*\\)/';\ - echo -e '#define SYS_\\1 SYS_\\2/p'; \ - echo -e -n 's/#define __NR_\\([A-Za-z0-9_]*\\)[ \t]*\\(.*\\)/';\ - echo -e '#define SYS_\\1 \\2/p'; \ - echo -e '$$i\\\n\\\n#endif\t/* sys/syscall.h */\nd') \ - > $(objpfx)syscall.sed - set -- `echo '#include <asm/unistd.h>'|$(CC) -M -E -`; \ - sed -f $(objpfx)syscall.sed $$2 > $(objpfx)syscall.h - $(INSTALL_DATA) $(objpfx)syscall.h $@ - rm -f $(objpfx)syscall.h $(objpfx)syscall.sed +sysdep_headers += sys/mount.h sys/sysinfo.h sys/acct.h sys/sysctl.h \ + sys/module.h sys/io.h sys/klog.h sys/kdaemon.h \ + syscall-list.h + +# Generate the list of SYS_* macros for the system calls (__NR_* macros). +$(objpfx)syscall-%.h $(objpfx)syscall-%.d: ../sysdeps/unix/sysv/linux/syscall.h + rm -f $(@:.h=.d) + echo > $(@:.d=.h).new \ + '/* Generated at libc build time from kernel syscall list. */' + SUNPRO_DEPENDENCIES='$(@:.h=.d) $(patsubst $(objpfx)%,$$(objpfx)%,\ + $(@:.h=.d))' \ + $(CC) -E -x c $< -D_LIBC -dM | \ + sed -n >> $(@:.d=.h).new \ + 's@^#define __NR_\([^ ]*\) .*$$@#define SYS_\1 __NR_\1@p' + mv -f $(@:.d=.h).new $(@:.d=.h) +# Get the generated list of dependencies (probably /usr/include/asm/unistd.h). +-include $(objpfx)syscall-list.d +generated += syscall-list.h syscall-list.d endif ifeq ($(subdir), time) diff --git a/sysdeps/unix/sysv/linux/syscall.h b/sysdeps/unix/sysv/linux/syscall.h index 62fca57d70..1fbda4c56e 100644 --- a/sysdeps/unix/sysv/linux/syscall.h +++ b/sysdeps/unix/sysv/linux/syscall.h @@ -24,4 +24,12 @@ Cambridge, MA 02139, USA. */ from the kernel sources. */ #include <asm/unistd.h> +#ifndef _LIBC +/* The Linux kernel header file defines macros `__NR_<name>', but some + programs expect the traditional form `SYS_<name>'. So in building libc + we scan the kernel's list and produce <syscall-list.h> with macros for + all the `SYS_' names. */ +#include <syscall-list.h> +#endif + #endif |