Re: [PATCH] m68k: don't comment out syscalls used by glibc

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Hi Andreas,

On Tue, Nov 1, 2011 at 21:34, Andreas Schwab <schwab@xxxxxxxxxxxxxx> wrote:
Define again the syscalls that are used by glibc so that it is possible to
compile a feature-complete glibc with the newest kernel headers.

I'm a bit puzzled by this. What exactly is your objective? To build a glibc that
runs on any possible kernel version ever released?

Signed-off-by: Andreas Schwab <schwab@xxxxxxxxxxxxxx>
---
 arch/m68k/include/asm/unistd.h |   10 +++++-----
 1 files changed, 5 insertions(+), 5 deletions(-)

diff --git a/arch/m68k/include/asm/unistd.h b/arch/m68k/include/asm/unistd.h
index 43f984e..d97234b 100644
--- a/arch/m68k/include/asm/unistd.h
+++ b/arch/m68k/include/asm/unistd.h
@@ -132,10 +132,10 @@
 #define __NR_adjtimex          124
 #define __NR_mprotect          125
 #define __NR_sigprocmask       126
-/*#define __NR_create_module   127*/
+#define __NR_create_module     127
 #define __NR_init_module       128
 #define __NR_delete_module     129
-/*#define __NR_get_kernel_syms 130*/
+#define __NR_get_kernel_syms   130
 #define __NR_quotactl          131
 #define __NR_getpgid           132
 #define __NR_fchdir            133
@@ -172,7 +172,7 @@
 #define __NR_setresuid         164
 #define __NR_getresuid         165
 #define __NR_getpagesize       166
-/*#define __NR_query_module    167*/
+#define __NR_query_module      167

Support for the three syscalls above got removed day to day 10 years
ago, when adding support for Rusty's "In-kernel Module Loader" for
2.5.48. So I guess you need them for 2.4? I can understand that.

 #define __NR_poll              168
 #define __NR_nfsservctl                169
 #define __NR_setresgid         170
@@ -193,8 +193,8 @@
 #define __NR_capset            185
 #define __NR_sigaltstack       186
 #define __NR_sendfile          187
-/*#define __NR_getpmsg         188*/   /* some people actually want streams */
-/*#define __NR_putpmsg         189*/   /* some people actually want streams */
+#define __NR_getpmsg           188     /* some people actually want streams */
+#define __NR_putpmsg           189     /* some people actually want streams */
 #define __NR_vfork             190
 #define __NR_ugetrlimit                191
 #define __NR_mmap2             192

AFAIK, the upstream kernel never had an implementation for sys_{get,put}msg().
I did find "[Linux-streams] [PATCH] Linux-streams registration 2.5.46"
(http://www.mail-archive.com/linux-streams@xxxxxxxxxxxxxxxxxx/msg00639.html)

2.1.115pre1 added placeholders on i386, and we just followed suit.
Why do you need these?

Gr{oetje,eeting}s,

						Geert

--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@xxxxxxxxxxxxxx

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
							    -- Linus Torvalds
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