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ANDROID: GKI: defconfig: enable BTF debug info

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Build BTF type info into the kernel to enable use of BPF-based tools
such as BCC's libbpf-tools.
By default, modules whose split BTF is inconsistent with vmlinux BTF
will fail to load, which can prevent loading compatible but separately
built modules. Instead, enable MODULE_ALLOW_BTF_MISMATCH to ignore
such modules' BTF rather than refusing to load the module.

Bug: 203823368
Bug: 218515241
Test: build
Signed-off-by: Connor O'Brien <connoro@google.com>
Change-Id: I8efaab5f1a5c6ad6e9e6ccf1e78088d81a880480
This commit is contained in:
Connor O'Brien 2022-02-28 13:02:17 -08:00 • committed by Guru Das Srinagesh
parent b70253b056
commit e5016ad0da
2 changed files with 4 additions and 0 deletions
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2
arch/arm64/configs/gki_defconfig
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@ -674,6 +674,8 @@ CONFIG_PRINTK_TIME=y
CONFIG_PRINTK_CALLER=y
CONFIG_DYNAMIC_DEBUG_CORE=y
CONFIG_DEBUG_INFO_DWARF4=y
CONFIG_DEBUG_INFO_BTF=y
CONFIG_MODULE_ALLOW_BTF_MISMATCH=y
CONFIG_HEADERS_INSTALL=y
# CONFIG_SECTION_MISMATCH_WARN_ONLY is not set
CONFIG_MAGIC_SYSRQ=y

2
arch/x86/configs/gki_defconfig
View file

@ -626,6 +626,8 @@ CONFIG_DMA_CMA=y
CONFIG_PRINTK_TIME=y
CONFIG_DYNAMIC_DEBUG_CORE=y
CONFIG_DEBUG_INFO_DWARF4=y
CONFIG_DEBUG_INFO_BTF=y
CONFIG_MODULE_ALLOW_BTF_MISMATCH=y
CONFIG_HEADERS_INSTALL=y
# CONFIG_SECTION_MISMATCH_WARN_ONLY is not set
CONFIG_MAGIC_SYSRQ=y