[lkml]   [2000]   [Sep]   [10]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
Messages in this thread
Patch in this message
SubjectRe: [PATCH] for PAS16 functionality for 2.4
> Yepp. These warnings are there becuse of the way the list-style Makefiles
> work. You will see lots of them in drivers/net and drivers/scsi, too.

Here's a patch. Let me know if it works for you; if it does,
I will submit it for 2.4.0.

Here is some history: drivers/sound was the first of the list-style
Makefiles and has been using lists since the late 2.1.NN series.
Originally, drivers/sound/Makefile used $(sort ...) to remove duplicates.

In 2.3.14, Linus introduced init sections. This made $(sort ...)
unusable for the construction of O_OBJS and OX_OBJS.

Today, O_OBJS and OX_OBJS may contain duplicates, and Rules.make is
supposed to ignore the duplicates (while still preserving order).
The fact that SYMTAB_OBJS causes these warning messages is a bug.

I have written documentation on Rules.make and the interface between
Rules.make and Makefiles. It's here:

Here's a quote:

The order of files in $(O_OBJS) and $(OX_OBJS) is significant.
All $(OX_OBJS) files come first, in the order listed, followed by
all $(O_OBJS) files, in the order listed. Duplicates in the lists
are allowed: the first instance will be linked into $(O_TARGET)
and succeeding instances will be ignored. (Note: Rules.make may
emit warning messages for duplicates, but this is harmless).

I would really like to see this documentation in the kernel. I've sent
it to Linus three times, and he's ignored it three times. I will try
some more after the release of 2.4.0.

Anyways ... I'd appreciate it if a couple of people would try this patch
so that I can submit it.

Michael Elizabeth Chastain
"love without fear"


diff -u -r -N linux-2.4.0-test8/Rules.make linux/Rules.make
--- linux-2.4.0-test8/Rules.make Sun Aug 13 12:55:51 2000
+++ linux/Rules.make Sun Sep 10 14:06:02 2000
@@ -190,7 +190,7 @@


ifneq "$(strip $(SYMTAB_OBJS))" ""
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to
Please read the FAQ at

 \ /
  Last update: 2005-03-22 12:38    [W:0.121 / U:3.132 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site