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8c0d1202ba
RISC-V does not currently support perf trace, since the system call table is not generated. Perform the copy/paste exercise, wiring up RISC-V system call table generation. Signed-off-by: Björn Töpel <bjorn@rivosinc.com> Tested-by: Alexandre Ghiti <alexghiti@rivosinc.com> Cc: Anup Patel <anup@brainfault.org> Cc: Palmer Dabbelt <palmer@dabbelt.com> Cc: Albert Ou <aou@eecs.berkeley.edu> Cc: linux-riscv@lists.infradead.org Cc: Atish Patra <atishp@rivosinc.com> Cc: Paul Walmsley <paul.walmsley@sifive.com> Link: https://lore.kernel.org/r/20241024190353.46737-1-bjorn@kernel.org Signed-off-by: Namhyung Kim <namhyung@kernel.org>
47 lines
960 B
Bash
Executable file
47 lines
960 B
Bash
Executable file
#!/bin/sh
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# SPDX-License-Identifier: GPL-2.0
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#
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# Generate system call table for perf. Derived from
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# powerpc script.
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#
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# Copyright IBM Corp. 2017
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# Author(s): Hendrik Brueckner <brueckner@linux.vnet.ibm.com>
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# Changed by: Ravi Bangoria <ravi.bangoria@linux.vnet.ibm.com>
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# Changed by: Kim Phillips <kim.phillips@arm.com>
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# Changed by: Björn Töpel <bjorn@rivosinc.com>
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gcc=$1
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hostcc=$2
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incpath=$3
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input=$4
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if ! test -r $input; then
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echo "Could not read input file" >&2
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exit 1
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fi
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create_sc_table()
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{
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local sc nr max_nr
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while read sc nr; do
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printf "%s\n" " [$nr] = \"$sc\","
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max_nr=$nr
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done
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echo "#define SYSCALLTBL_RISCV_MAX_ID $max_nr"
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}
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create_table()
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{
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echo "#include \"$input\""
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echo "static const char *const syscalltbl_riscv[] = {"
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create_sc_table
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echo "};"
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}
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$gcc -E -dM -x c -I $incpath/include/uapi $input \
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|awk '$2 ~ "__NR" && $3 !~ "__NR3264_" {
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sub("^#define __NR(3264)?_", "");
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print | "sort -k2 -n"}' \
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|create_table
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