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bpftrace: fix patch context so -fno-stack-protector applies to test object

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The 0003 patch that links the data_source test carrier binary without
the host runtime also adds -fno-stack-protector to the object compile
line, needed because host gcc toolchains default to
-fstack-protector-strong and the -nostdlib link then fails with:

  data_source.c:212: undefined reference to `__stack_chk_fail'

However patch 0001 (DEBUG_PREFIX_MAP) runs first in SRC_URI and rewrites
the same compile line to insert ${DEBUG_PREFIX_MAP_LIST}, so 0003's
first hunk no longer matched the tree and the -fno-stack-protector flag
was silently dropped from the object compile (it only landed on the
link line). Rebase 0003's first hunk onto the post-0001 context so the
flag is applied where it is needed.

Signed-off-by: Khem Raj <khem.raj@oss.qualcomm.com>
This commit is contained in:
Khem Raj
2026-07-09 17:27:55 +00:00
parent f4da51499d
commit 1656c0abb5
1 changed files with 2 additions and 2 deletions
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meta-oe/dynamic-layers/meta-python/recipes-devtools/bpftrace/bpftrace/0003-cmake-BuildBPF.cmake-link-data-source-binary-without.patch
+2 -2
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@@ -62,8 +62,8 @@ index cb8cd68..8aa059f 100644
OUTPUT ${ARG_OBJECT}
DEPENDS ${ARG_SOURCE} ${ARG_DEPENDS}
# See above: fresh compilation and the use of `gcc`.
- COMMAND ${GCC} -Wno-attributes -g -I ${CMAKE_CURRENT_BINARY_DIR} -c ${CMAKE_CURRENT_SOURCE_DIR}/${ARG_SOURCE} -o ${CMAKE_CURRENT_BINARY_DIR}/${ARG_OBJECT}
+ COMMAND ${GCC} -Wno-attributes -fno-stack-protector -g -I ${CMAKE_CURRENT_BINARY_DIR} -c ${CMAKE_CURRENT_SOURCE_DIR}/${ARG_SOURCE} -o ${CMAKE_CURRENT_BINARY_DIR}/${ARG_OBJECT}
- COMMAND ${GCC} -Wno-attributes -g ${DEBUG_PREFIX_MAP_LIST} -I ${CMAKE_CURRENT_BINARY_DIR} -c ${CMAKE_CURRENT_SOURCE_DIR}/${ARG_SOURCE} -o ${CMAKE_CURRENT_BINARY_DIR}/${ARG_OBJECT}
+ COMMAND ${GCC} -Wno-attributes -fno-stack-protector -g ${DEBUG_PREFIX_MAP_LIST} -I ${CMAKE_CURRENT_BINARY_DIR} -c ${CMAKE_CURRENT_SOURCE_DIR}/${ARG_SOURCE} -o ${CMAKE_CURRENT_BINARY_DIR}/${ARG_OBJECT}
COMMAND cmake -E env LLVM_OBJCOPY=${LLVM_OBJCOPY} ${PAHOLE} -J ${CMAKE_CURRENT_BINARY_DIR}/${ARG_OBJECT}
VERBATIM
)