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| author | Florian Weimer <fweimer@redhat.com> | 2020-01-02 10:18:22 +0100 |
|---|---|---|
| committer | Florian Weimer <fweimer@redhat.com> | 2020-01-02 10:18:23 +0100 |
| commit | a1bd5f86739926469bbe0054b93305ff5905b070 (patch) | |
| tree | 48f6c1da68ce82fb7207fedc529dc98bf2092e04 /sysdeps/unix/sysv/linux/include/sys | |
| parent | 4cf0d223052dabb9caed29e1e91e1d61933e14fb (diff) | |
| download | glibc-a1bd5f86739926469bbe0054b93305ff5905b070.zip glibc-a1bd5f86739926469bbe0054b93305ff5905b070.tar.gz glibc-a1bd5f86739926469bbe0054b93305ff5905b070.tar.bz2 | |
Linux: Use system call tables during build
Use <arch-syscall.h> instead of <asm/unistd.h> to obtain the system
call numbers. A few direct includes of <asm/unistd.h> need to be
removed (if the system call numbers are already provided indirectly
by <sysdep.h>) or replaced with <sys/syscall.h>.
Current Linux headers for alpha define the required system call names,
so most of the _NR_* hacks are no longer needed. For the 32-bit arm
architecture, eliminate the INTERNAL_SYSCALL_ARM macro, now that we
have regular system call names for cacheflush and set_tls. There are
more such cleanup opportunities for other architectures, but these
cleanups are required to avoid macro redefinition errors during the
build.
For ia64, it is desirable to use <asm/break.h> directly to obtain
the break number for system calls (which is not a system call number
itself). This requires replacing __BREAK_SYSCALL with
__IA64_BREAK_SYSCALL because the former is defined as an alias in
<asm/unistd.h>, but not in <asm/break.h>.
Reviewed-by: Siddhesh Poyarekar <siddhesh@sourceware.org>
Diffstat (limited to 'sysdeps/unix/sysv/linux/include/sys')
| -rw-r--r-- | sysdeps/unix/sysv/linux/include/sys/syscall.h | 29 |
1 files changed, 29 insertions, 0 deletions
diff --git a/sysdeps/unix/sysv/linux/include/sys/syscall.h b/sysdeps/unix/sysv/linux/include/sys/syscall.h new file mode 100644 index 0000000..9611ca4 --- /dev/null +++ b/sysdeps/unix/sysv/linux/include/sys/syscall.h @@ -0,0 +1,29 @@ +/* Wrapper header for <sys/syscall.h>. Linux version. + Copyright (C) 2020 Free Software Foundation, Inc. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, see + <http://www.gnu.org/licenses/>. */ + +#ifndef _SYSCALL_H + +#ifdef _ISOMAC +# include <sysdeps/unix/sysv/linux/sys/syscall.h> +#else /* !_ISOMAC */ +/* Use the built-in system call list, not <asm/unistd.h>, which may + not list all the system call numbers we need. */ +# define _SYSCALL_H +# include <arch-syscall.h> +#endif /* !_ISOMAC */ + +#endif /* _SYSCALL_H */ |