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1e7e478838
Add the inline static call implementation for x86-64. The generated code is identical to the out-of-line case, except we move the trampoline into it's own section. Objtool uses the trampoline naming convention to detect all the call sites. It then annotates those call sites in the .static_call_sites section. During boot (and module init), the call sites are patched to call directly into the destination function. The temporary trampoline is then no longer used. [peterz: merged trampolines, put trampoline in section] Signed-off-by: Josh Poimboeuf <jpoimboe@redhat.com> Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Signed-off-by: Ingo Molnar <mingo@kernel.org> Cc: Linus Torvalds <torvalds@linux-foundation.org> Link: https://lore.kernel.org/r/20200818135804.864271425@infradead.org
52 lines
1.1 KiB
Bash
Executable File
52 lines
1.1 KiB
Bash
Executable File
#!/bin/sh
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# SPDX-License-Identifier: GPL-2.0
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FILES='
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arch/x86/include/asm/inat_types.h
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arch/x86/include/asm/orc_types.h
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arch/x86/include/asm/emulate_prefix.h
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arch/x86/lib/x86-opcode-map.txt
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arch/x86/tools/gen-insn-attr-x86.awk
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include/linux/static_call_types.h
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'
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check_2 () {
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file1=$1
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file2=$2
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shift
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shift
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cmd="diff $* $file1 $file2 > /dev/null"
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test -f $file2 && {
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eval $cmd || {
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echo "Warning: Kernel ABI header at '$file1' differs from latest version at '$file2'" >&2
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echo diff -u $file1 $file2
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}
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}
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}
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check () {
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file=$1
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shift
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check_2 tools/$file $file $*
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}
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if [ ! -d ../../kernel ] || [ ! -d ../../tools ] || [ ! -d ../objtool ]; then
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exit 0
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fi
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cd ../..
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for i in $FILES; do
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check $i
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done
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check arch/x86/include/asm/inat.h '-I "^#include [\"<]\(asm/\)*inat_types.h[\">]"'
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check arch/x86/include/asm/insn.h '-I "^#include [\"<]\(asm/\)*inat.h[\">]"'
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check arch/x86/lib/inat.c '-I "^#include [\"<]\(../include/\)*asm/insn.h[\">]"'
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check arch/x86/lib/insn.c '-I "^#include [\"<]\(../include/\)*asm/in\(at\|sn\).h[\">]" -I "^#include [\"<]\(../include/\)*asm/emulate_prefix.h[\">]"'
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