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ebpf: fix ebpf compile error

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Some/most of the samples/tools throw and error, e.g.:
LLVM ERROR: Cannot select: 0x56049b79dcb0: ch,glue = BPFISD::CALL 0x56049a93ad60, TargetExternalSymbol:i64'__stack_chk_fail'
  0x56049b391500: i64 = TargetExternalSymbol'__stack_chk_fail'
  In function: waker

bcc-stack-protector.patch adds -fno-stack-protector to the CFLAGS
which fixes this error.

Signed-off-by: Rolf Neugebauer <rolf.neugebauer@docker.com>
This commit is contained in:
Rolf Neugebauer
2017-01-06 18:06:05 +00:00
parent fe533386f0
commit be37d7b0fa
3 changed files with 13 additions and 3 deletions
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10
alpine/base/ebpf/bcc-stack-protector.patch Normal file
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@@ -0,0 +1,10 @@
--- src/cc/frontends/clang/kbuild_helper.cc
+++ src/cc/frontends/clang/kbuild_helper.cc
@@ -89,6 +89,7 @@ int KBuildHelper::get_flags(const char *uname_machine, vector<string> *cflags) {
cflags->push_back("-D__HAVE_BUILTIN_BSWAP64__");
cflags->push_back("-Wno-unused-value");
cflags->push_back("-Wno-pointer-sign");
+ cflags->push_back("-fno-stack-protector");
return 0;
}