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patches/strace/4.5.18/170-no_cachectl.patch
author "Benoît THÉBAUDEAU" <benoit.thebaudeau@advansee.com>
Wed Jun 08 15:47:43 2011 +0200 (2011-06-08)
changeset 2508 9e2761e59a75
permissions -rw-r--r--
debug/cross-gdb: check host dependencies

Cross-gdb depends on expat and python. If either is missing, cross-gdb will
build successfully, but lacking some features.

Especially, if expat is missing, cross-gdb will be unable to parse the target
description, which may lead to runtime malfunctions and the following GDB
warning:
"Can not parse XML target description; XML support was disabled at compile time"

Hence, expat should be considered mandatory.

On the other hand, the features missing without python are not critical, so
python should not be considered mandatory.

This patch does the following:
- At configure time, warn the user if either expat or python is missing.
- In menuconfig, disable the static build options regarding cross-gdb if no
static version of expat is available, and disable cross-gdb if expat is
missing.

Signed-off-by: "Benoît THÉBAUDEAU" <benoit.thebaudeau@advansee.com>
[yann.morin.1998@anciens.enib.fr: add comment for impossible static cross-gdb]
Signed-off-by: "Yann E. MORIN" <yann.morin.1998@anciens.enib.fr> 
     1 This patch is needed on newer uclibc becuase the uclibc header generation

     2 mechanism generates the sysnum.h properly NR_cacheflush is defined for ARM

     3 but there is no cachectl.h file which is exported to userspace. Strace 

     4 assumes that if SYS_cacheflush is defined than it icludes asm/cachectl.h

     5 which breaks the build for ARM now.

     6 

     7 This patch adds a check for ARM architecture.

     8 

     9 -Khem

    10 

    11 Here is error

    12 

    13 | 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; \

    14 |   then mv -f ".deps/term.Tpo" ".deps/term.Po"; else rm -f ".deps/term.Tpo"; exit 1; fi

    15 | system.c:69:26: error: asm/cachectl.h: No such file or directory

    16 | make[1]: *** [system.o] Error 1

    17 | make[1]: *** Waiting for unfinished jobs....

    18 | signal.c: In function 'sys_sigreturn':

    19 | signal.c:1221: warning: passing argument 4 of 'ptrace' makes integer from pointer without a cast

    20 | 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'

    21 | make: *** [all] Error 2

    22 | FATAL: oe_runmake failed

    23 

    24 Index: strace-4.5.14/system.c

    25 ===================================================================

    26 --- strace-4.5.14.orig/system.c 2008-05-15 20:23:16.000000000 -0700

    27 +++ strace-4.5.14/system.c  2008-05-15 20:24:03.000000000 -0700

    28 @@ -65,7 +65,7 @@

    29  #include <linux/capability.h>

    30  #endif

    31  

    32 -#ifdef SYS_cacheflush

    33 +#if defined SYS_cacheflush && !defined ARM

    34  #include <asm/cachectl.h>

    35  #endif
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