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Bug#822364: linux: FTBFS on sh4: #error __NR_bpf not defined. libbpf does not support your arch.

Source: linux
Version: 4.5.1-1
Severity: normal
User: debian-superh@lists.debian.org
Usertags: sh4


Linux 4.5.1 fails to build from source on sh4 since it tries to build the libbpf
code which has not been ported to sh4 yet [1]:

  gcc -Wp,-MD,/«PKGBUILDDIR»/debian/build/build-tools/tools/perf/.bpf.o.d,-MT,/«PKGBUILDDIR»/debian/build/build-tools/tools/perf/bpf.o -g -O2 -fstack-protector-strong -Wformat -Werror=format-security -Wall -Wdate-time -D_FORTIFY_SOURCE=2 -I/«PKGBUILDDIR»/tools/perf -I/«PKGBUILDDIR»/debian/build/build-tools/tools/perf -isystem /«PKGBUILDDIR»/debian/build/build-tools/include -DHAVE_LIBELF_MMAP_SUPPORT -DHAVE_ELF_GETPHDRNUM_SUPPORT -Wno-error -Werror -Wall -fPIC -I. -I/«PKGBUILDDIR»/tools/include -I/«PKGBUILDDIR»/arch/sh/include/uapi -I/«PKGBUILDDIR»/include/uapi -D"BUILD_STR(s)=#s"   -c -o /«PKGBUILDDIR»/debian/build/build-tools/tools/perf/bpf.o bpf.c
bpf.c:28:4: error: #error __NR_bpf not defined. libbpf does not support your arch.
 #  error __NR_bpf not defined. libbpf does not support your arch.
bpf.c: In function 'sys_bpf':
bpf.c:40:17: error: '__NR_bpf' undeclared (first use in this function)
  return syscall(__NR_bpf, cmd, attr, size);
bpf.c:40:17: note: each undeclared identifier is reported only once for each function it appears in
bpf.c:41:1: error: control reaches end of non-void function [-Werror=return-type]
cc1: all warnings being treated as errors
mv: cannot stat '/«PKGBUILDDIR»/debian/build/build-tools/tools/perf/.bpf.o.tmp': No such file or directory
make[8]: *** [/«PKGBUILDDIR»/debian/build/build-tools/tools/perf/bpf.o] Error 1
/«PKGBUILDDIR»/tools/build/Makefile.build:77: recipe for target '/«PKGBUILDDIR»/debian/build/build-tools/tools/perf/bpf.o' failed
make[7]: *** [/«PKGBUILDDIR»/debian/build/build-tools/tools/perf/libbpf-in.o] Error 2
Makefile:157: recipe for target '/«PKGBUILDDIR»/debian/build/build-tools/tools/perf/libbpf-in.o' failed
make[7]: Leaving directory '/«PKGBUILDDIR»/tools/lib/bpf'
make[6]: *** [/«PKGBUILDDIR»/debian/build/build-tools/tools/perf/libbpf.a] Error 2
Makefile.perf:451: recipe for target '/«PKGBUILDDIR»/debian/build/build-tools/tools/perf/libbpf.a' failed
make[6]: Leaving directory '/«PKGBUILDDIR»/tools/perf'
make[5]: *** [all] Error 2
/«PKGBUILDDIR»/debian/rules.d/tools/perf/Makefile:49: recipe for target 'all' failed

Could you disable libbpf on sh4 for the time being?


> [1] https://buildd.debian.org/status/fetch.php?pkg=linux&arch=sh4&ver=4.5.1-1&stamp=1461192004

 .''`.  John Paul Adrian Glaubitz
: :' :  Debian Developer - glaubitz@debian.org
`. `'   Freie Universitaet Berlin - glaubitz@physik.fu-berlin.de
  `-    GPG: 62FF 8A75 84E0 2956 9546  0006 7426 3B37 F5B5 F913

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