kernel: add DEBUG_INFO_REDUCED config option

Add DEBUG_INFO_REDUCED as a kernel config option and remove it from the
kernel configs. This is in preparation of the upcoming option to enable
BTF typeinfo, which is incompatible with DEBUG_INFO_REDUCED.

Signed-off-by: Stijn Tintel <stijn@linux-ipv6.be>

diff --git a/config/Config-kernel.in b/config/Config-kernel.in
index 31d4e276fdf91dde2259ec9d178243a3cf3ecb90..6ba40e15fd1b47993acf91f445a3036232220647 100644 (file)
--- a/config/Config-kernel.in
+++ b/config/Config-kernel.in
@@ -368,6 +368,20 @@ config KERNEL_DEBUG_INFO
        help
          This will compile your kernel and modules with debug information.
 
+config KERNEL_DEBUG_INFO_REDUCED
+       bool "Reduce debugging information"
+       default y
+       depends on KERNEL_DEBUG_INFO
+       help
+         If you say Y here gcc is instructed to generate less debugging
+         information for structure types. This means that tools that
+         need full debugging information (like kgdb or systemtap) won't
+         be happy. But if you merely need debugging information to
+         resolve line numbers there is no loss. Advantage is that
+         build directory object sizes shrink dramatically over a full
+         DEBUG_INFO build and compile times are reduced too.
+         Only works with newer gcc versions.
+
 config KERNEL_DEBUG_LL_UART_NONE
        bool
        default n

diff --git a/target/linux/generic/config-5.10 b/target/linux/generic/config-5.10
index a46fe13e64b633fe45d5b4ed5c18f2bbdf887654..806017e5053f77b9878cb0db663c5126717473ee 100644 (file)
--- a/target/linux/generic/config-5.10
+++ b/target/linux/generic/config-5.10
@@ -1276,7 +1276,6 @@ CONFIG_DEBUG_FS_ALLOW_ALL=y
 # CONFIG_DEBUG_INFO_BTF is not set
 # CONFIG_DEBUG_INFO_COMPRESSED is not set
 # CONFIG_DEBUG_INFO_DWARF4 is not set
-CONFIG_DEBUG_INFO_REDUCED=y
 # CONFIG_DEBUG_INFO_SPLIT is not set
 CONFIG_DEBUG_KERNEL=y
 # CONFIG_DEBUG_KMEMLEAK is not set