patches/strace/4.5.17/180-no_cachectl.patch
author "Yann E. MORIN" <yann.morin.1998@anciens.enib.fr>
Sat Dec 31 18:47:37 2011 +0100 (2011-12-31)
changeset 2829 0c3c95f911ec
permissions -rw-r--r--
docs: credit Konrad EISELE for the initial multilib support

Konrad submitted an initial patch adding multlib support:
http://sourceware.org/ml/crossgcc/2011-11/msg00040.html

The patch was full of good ideas, but had a few issues, so
I (Yann E. MORIN) started it all from scatch, re-using part
of the original patch. This got implemented in this series:
hg log -r 446a17b5dd1e:e47d17391ae3

As I forgot to credit Konrad in these changelogs, update the
docs so that the work by Konrad gets credited. Without his
initial effort, we would probably not have had multlib support
so soon. Thank you Konrad!

Signed-off-by: "Yann E. MORIN" <yann.morin.1998@anciens.enib.fr>
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This patch is needed on newer uclibc becuase the uclibc header generation
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mechanism generates the sysnum.h properly NR_cacheflush is defined for ARM
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but there is no cachectl.h file which is exported to userspace. Strace 
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assumes that if SYS_cacheflush is defined than it icludes asm/cachectl.h
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which breaks the build for ARM now.
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This patch adds a check for ARM architecture.
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-Khem
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Here is error
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| if ccache arm-angstrom-linux-uclibcgnueabi-gcc -march=armv5te -mtune=arm926ej-s -DHAVE_CONFIG_H -I. -I. -I. -Ilinux/arm -I./linux/arm -Ilinux -I./linux  -isystem/home/kraj/work/oe/build/uclibc/tmp-omap5912osk/staging/arm-angstrom-linux-uclibcgnueabi/usr/include -Wall -isystem/home/kraj/work/oe/build/uclibc/tmp-omap5912osk/staging/arm-angstrom-linux-uclibcgnueabi/usr/include -fexpensive-optimizations -fomit-frame-pointer -frename-registers -Os -MT term.o -MD -MP -MF ".deps/term.Tpo" -c -o term.o term.c; \
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|   then mv -f ".deps/term.Tpo" ".deps/term.Po"; else rm -f ".deps/term.Tpo"; exit 1; fi
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| system.c:69:26: error: asm/cachectl.h: No such file or directory
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| make[1]: *** [system.o] Error 1
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| make[1]: *** Waiting for unfinished jobs....
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| signal.c: In function 'sys_sigreturn':
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| signal.c:1221: warning: passing argument 4 of 'ptrace' makes integer from pointer without a cast
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| make[1]: Leaving directory `/home/kraj/work/oe/build/uclibc/tmp-omap5912osk/work/armv5te-angstrom-linux-uclibcgnueabi/strace-4.5.14-r5/strace-4.5.14'
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| make: *** [all] Error 2
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| FATAL: oe_runmake failed
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Index: strace-4.5.14/system.c
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===================================================================
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--- strace-4.5.14.orig/system.c 2008-05-15 20:23:16.000000000 -0700
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+++ strace-4.5.14/system.c  2008-05-15 20:24:03.000000000 -0700
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@@ -70,7 +70,7 @@
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 #include <linux/capability.h>
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 #endif
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-#ifdef SYS_cacheflush
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+#if defined SYS_cacheflush && !defined ARM
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 #include <asm/cachectl.h>
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 #endif