MIPS: build status (2010.01)

Hi,

here's a build summary of the latest git with GCC 4.4.1:

$ ./MAKEALL mips mips_el

--------------------- SUMMARY ---------------------------- Boards compiled: 23
Boards with warnings or errors: 11 ( qemu_mips vct_platinum_onenand vct_platinum_onenand_small vct_platinumavc_onenand vct_platinumavc_onenand_small vct_premium_onenand vct_premium_onenand_small dbau1000 dbau1100 dbau1500 gth2 )
----------------------------------------------------------

Build warnings / errors could be categorized into five groups:

1) zlib.c: missing <asm/unaligned.h> build error
2) lib_mips/board.c: undefined reference to `getenv_IPaddr' build error
3) env_onenand.c: CONFIG_ENV_{ADDR,SIZE}_FLEX undeclared build error
4) cmd_ide.c: dbuf strict-aliasing warning
5) dlmalloc.c: strict-aliasing warning

I'll post two patches to fix #1 and #2. As for #3, I'll reply to this mail with build logs to remind appropriate people of these issues.

Per #4, it would be better to upgrade the byteorder/swab headers first, rather than fixing occasional strict-aliasing reports. Since they are only reported by GCC 4.4, I'd like to leave this issue as-is for now.

With regard to #5, I've checked the mail archives and found that this is one of the known issues, I will ignore it.

$ mips-linux-gnu-gcc --version
mips-linux-gnu-gcc (Sourcery G++ Lite 4.4-57) 4.4.1
Copyright (C) 2009 Free Software Foundation, Inc.
This is free software; see the source for copying conditions.  There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.

with a few adjustments for U-Boot. This fixes the following build error:

make -C lib_generic/
zlib.c:31:27: error: asm/unaligned.h: No such file or directory zlib.c: In function 'inflate_fast':
zlib.c:641: warning: implicit declaration of function 'get_unaligned' make[1]: *** [zlib.o] Error 1
make[1]: Leaving directory `/home/skuribay/git/u-boot.git/lib_generic'
make: *** [lib_generic/libgeneric.a] Error 2

---
 include/asm-mips/unaligned.h |   26 ++++++++++++++++++++++++++
 1 files changed, 26 insertions(+), 0 deletions(-)
 create mode 100644 include/asm-mips/unaligned.h

new file mode 100644
index 0000000..da6a347
@@ -0,0 +1,26 @@
+/*
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * Copyright (C) 2007 Ralf Baechle (ralf at linux-mips.org)
+ */
+#ifndef _ASM_MIPS_UNALIGNED_H
+#define _ASM_MIPS_UNALIGNED_H
+
+#include <compiler.h>
+#if defined(__MIPSEB__)
+# define get_unaligned	__get_unaligned_be
+# define put_unaligned	__put_unaligned_be
+#elif defined(__MIPSEL__)
+# define get_unaligned	__get_unaligned_le
+# define put_unaligned	__put_unaligned_le
+#else
+#  error "MIPS, but neither __MIPSEB__, nor __MIPSEL__???"
+#endif
+
+# include <linux/unaligned/le_byteshift.h>
+# include <linux/unaligned/be_byteshift.h>
+# include <linux/unaligned/generic.h>
+
+#endif /* _ASM_MIPS_UNALIGNED_H */

1.6.6

In the commit 6ac59c55 (net: pull CONFIG checks out of source and into makefile), net/net.o is changed to be built-in only when CONFIG_CMD_NET is enabled, while lib_mips/board.c has a reference to "getenv_IPaddr() left as-is.

And now Micronas VCT Platinum AVC board builds (vct_platinumavc*_config) failed as follows, because they don't have ethernet support and disable CONFIG_CMD_NET option:

lib_mips/libmips.a(board.o): In function `board_init_r':
board.c:(.text+0x2e4): undefined reference to `getenv_IPaddr'
make: *** [u-boot] Error 1

VCT Platinum AVC is the only MIPS target who doesn't have CONFIG_CMD_NET and suffer from this issue at this moment.

---

Note that arm/avr32/i386/m68k/nios/nios2/ppc/sparc have the same issue, while blackfin/microblaze/sh don't.

 lib_mips/board.c |    2 ++
 1 files changed, 2 insertions(+), 0 deletions(-)

index b2d113e..5c35884 100644
@@ -370,8 +370,10 @@ void board_init_r (gd_t *id, ulong dest_addr)
 	/* relocate environment function pointers etc. */
 	env_relocate();
 
+#ifdef CONFIG_CMD_NET
 	/* IP Address */
 	bd->bi_ip_addr = getenv_IPaddr("ipaddr");
+#endif
 
 #if defined(CONFIG_PCI)
 	/*

1.6.6

And I missed that this one will be fixed soon in a different way. Please ignore this patch, thanks.

Hi Rohit, Amul, and Kyungmin (Samsung people),

In the following commit, Flex-OneNAND support was introduced:

commit c758e947aa7d39a2be607ecdedd818ad300807b2

Author: Amul Kumar Saha <[email protected]>
Date:   Wed Nov 4 10:38:46 2009 +0530

ENV Variable support for Flex-OneNAND

Define and use CONFIG_ENV_ADDR_FLEX and CONFIG_ENV_SIZE_FLEX for storing environment variables.

However, it breaks the existing 'normal' OneNAND user's builds like this:

LOG/vct_platinum_onenand.ERR
-----------------------------
env_onenand.c: In function 'env_relocate_spec':
env_onenand.c:70: error: 'CONFIG_ENV_ADDR_FLEX' undeclared (first use in this function) env_onenand.c:70: error: (Each undeclared identifier is reported only once env_onenand.c:70: error: for each function it appears in.)
env_onenand.c: In function 'saveenv':
env_onenand.c:106: error: 'CONFIG_ENV_ADDR_FLEX' undeclared (first use in this function) env_onenand.c:107: error: 'CONFIG_ENV_SIZE_FLEX' undeclared (first use in this function) make[1]: *** [env_onenand.o] Error 1
make[1]: *** Waiting for unfinished jobs....
make: *** [common/libcommon.a] Error 2

Affected (MIPS) targets:
- MIPS Micronas VCT Premium/Platinum/Platinum AVC (vct_*_onenand_config).
- I'm not sure about other OneNAND users in mainline.

Having a look at the code, and from CONFIG_ENV_{ADDR,SIZE}_FLEX names, they're apparently Flex-OneNAND specific configurations, right? If so 'normal' OneNAND users don't want to have, I'm afraid.

Any comments on how, and where supposed to be fixed?