tjh.dev
+12
Documentation/process/changes.rst
+12
Documentation/process/changes.rst
···
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GNU C 5.1 gcc --version
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Clang/LLVM (optional) 11.0.0 clang --version
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GNU make 3.81 make --version
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bash 4.2 bash --version
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binutils 2.23 ld -v
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flex 2.5.35 flex --version
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bison 2.0 bison --version
···
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----
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You will need GNU make 3.81 or later to build the kernel.
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Bash
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----
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Some bash scripts are used for the kernel build.
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Bash 4.2 or newer is needed.
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Binutils
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--------
···
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----
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- <ftp://ftp.gnu.org/gnu/make/>
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+
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Bash
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----
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+
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- <ftp://ftp.gnu.org/gnu/bash/>
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Binutils
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--------
+2
-2
scripts/Makefile.build
+2
-2
scripts/Makefile.build
···
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# To make this rule robust against "Argument list too long" error,
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# ensure to add $(obj)/ prefix by a shell command.
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-
cmd_mod = echo $(call real-search, $*.o, .o, -objs -y -m) | \
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$(AWK) -v RS='( |\n)' '!x[$$0]++ { print("$(obj)/"$$0) }' > $@
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cmd_mod = printf '%s\n' $(call real-search, $*.o, .o, -objs -y -m) | \
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$(AWK) '!x[$$0]++ { print("$(obj)/"$$0) }' > $@
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$(obj)/%.mod: FORCE
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$(call if_changed,mod)
+21
-15
scripts/check-local-export
+21
-15
scripts/check-local-export
···
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set -e
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# catch errors from ${NM}
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set -o pipefail
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+
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# Run the last element of a pipeline in the current shell.
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# Without this, the while-loop would be executed in a subshell, and
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# the changes made to 'symbol_types' and 'export_symbols' would be lost.
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shopt -s lastpipe
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+
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declare -A symbol_types
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declare -a export_symbols
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exit_code=0
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# If there is no symbol in the object, ${NM} (both GNU nm and llvm-nm) shows
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# 'no symbols' diagnostic (but exits with 0). It is harmless and hidden by
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# '2>/dev/null'. However, it suppresses real error messages as well. Add a
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# hand-crafted error message here.
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#
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# TODO:
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# Use --quiet instead of 2>/dev/null when we upgrade the minimum version of
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# binutils to 2.37, llvm to 13.0.0.
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# Then, the following line will be really simple:
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# ${NM} --quiet ${1} |
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+
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{ ${NM} ${1} 2>/dev/null || { echo "${0}: ${NM} failed" >&2; false; } } |
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while read value type name
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do
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# Skip the line if the number of fields is less than 3.
···
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if [[ ${name} == __ksymtab_* ]]; then
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export_symbols+=(${name#__ksymtab_})
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fi
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-
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# If there is no symbol in the object, ${NM} (both GNU nm and llvm-nm)
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# shows 'no symbols' diagnostic (but exits with 0). It is harmless and
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# hidden by '2>/dev/null'. However, it suppresses real error messages
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# as well. Add a hand-crafted error message here.
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#
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# Use --quiet instead of 2>/dev/null when we upgrade the minimum version
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# of binutils to 2.37, llvm to 13.0.0.
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#
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# Then, the following line will be really simple:
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# done < <(${NM} --quiet ${1})
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done < <(${NM} ${1} 2>/dev/null || { echo "${0}: ${NM} failed" >&2; false; } )
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-
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# Catch error in the process substitution
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wait $!
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done
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for name in "${export_symbols[@]}"
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do
+3
-3
scripts/gdb/linux/config.py
+3
-3
scripts/gdb/linux/config.py
···
24
24
filename = arg
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try:
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-
py_config_ptr = gdb.parse_and_eval("kernel_config_data + 8")
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-
py_config_size = gdb.parse_and_eval(
29
-
"sizeof(kernel_config_data) - 1 - 8 * 2")
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+
py_config_ptr = gdb.parse_and_eval("&kernel_config_data")
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+
py_config_ptr_end = gdb.parse_and_eval("&kernel_config_data_end")
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py_config_size = py_config_ptr_end - py_config_ptr
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except gdb.error as e:
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raise gdb.GdbError("Can't find config, enable CONFIG_IKCONFIG?")
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+2
-3
scripts/nsdeps
+2
-3
scripts/nsdeps
···
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local mod=${1%.ko:}
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shift
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local namespaces="$*"
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-
local mod_source_files="`cat $mod.mod | sed -n 1p \
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-
| sed -e 's/\.o/\.c/g' \
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-
| sed "s|[^ ]* *|${src_prefix}&|g"`"
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local mod_source_files=$(sed "s|^\(.*\)\.o$|${src_prefix}\1.c|" $mod.mod)
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+
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for ns in $namespaces; do
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echo "Adding namespace $ns to module $mod.ko."
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generate_deps_for_ns $ns "$mod_source_files"