| #!/bin/sh |
| # SPDX-License-Identifier: GPL-2.0-or-later |
| |
| # Error out on error |
| set -e |
| |
| num_ool_stubs_text_builtin="$1" |
| is_64bit="$2" |
| objdump="$3" |
| vmlinux_o="$4" |
| arch_vmlinux_S="$5" |
| |
| RELOCATION=R_PPC64_ADDR64 |
| if [ -z "$is_64bit" ]; then |
| RELOCATION=R_PPC_ADDR32 |
| fi |
| |
| num_ool_stubs_total=$($objdump -r -j __patchable_function_entries "$vmlinux_o" | |
| grep -c "$RELOCATION") |
| num_ool_stubs_inittext=$($objdump -r -j __patchable_function_entries "$vmlinux_o" | |
| grep -e ".init.text" -e ".text.startup" | grep -c "$RELOCATION") |
| num_ool_stubs_text=$((num_ool_stubs_total - num_ool_stubs_inittext)) |
| |
| if [ "$num_ool_stubs_text" -gt "$num_ool_stubs_text_builtin" ]; then |
| num_ool_stubs_text_end=$((num_ool_stubs_text - num_ool_stubs_text_builtin)) |
| else |
| num_ool_stubs_text_end=0 |
| fi |
| |
| cat > "$arch_vmlinux_S" <<EOF |
| #include <asm/asm-offsets.h> |
| #include <asm/ppc_asm.h> |
| #include <linux/linkage.h> |
| |
| .pushsection .tramp.ftrace.text,"aw" |
| SYM_DATA(ftrace_ool_stub_text_end_count, .long $num_ool_stubs_text_end) |
| |
| SYM_START(ftrace_ool_stub_text_end, SYM_L_GLOBAL, .balign SZL) |
| #if $num_ool_stubs_text_end |
| .space $num_ool_stubs_text_end * FTRACE_OOL_STUB_SIZE |
| #endif |
| SYM_CODE_END(ftrace_ool_stub_text_end) |
| .popsection |
| |
| .pushsection .tramp.ftrace.init,"aw" |
| SYM_DATA(ftrace_ool_stub_inittext_count, .long $num_ool_stubs_inittext) |
| |
| SYM_START(ftrace_ool_stub_inittext, SYM_L_GLOBAL, .balign SZL) |
| .space $num_ool_stubs_inittext * FTRACE_OOL_STUB_SIZE |
| SYM_CODE_END(ftrace_ool_stub_inittext) |
| .popsection |
| EOF |
