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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-27 10:05:51 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-27 10:05:51 +0000 |
commit | 5d1646d90e1f2cceb9f0828f4b28318cd0ec7744 (patch) | |
tree | a94efe259b9009378be6d90eb30d2b019d95c194 /tools/perf/arch/riscv/util/dwarf-regs.c | |
parent | Initial commit. (diff) | |
download | linux-upstream.tar.xz linux-upstream.zip |
Adding upstream version 5.10.209.upstream/5.10.209upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'tools/perf/arch/riscv/util/dwarf-regs.c')
-rw-r--r-- | tools/perf/arch/riscv/util/dwarf-regs.c | 72 |
1 files changed, 72 insertions, 0 deletions
diff --git a/tools/perf/arch/riscv/util/dwarf-regs.c b/tools/perf/arch/riscv/util/dwarf-regs.c new file mode 100644 index 000000000..cd0504c02 --- /dev/null +++ b/tools/perf/arch/riscv/util/dwarf-regs.c @@ -0,0 +1,72 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * Copyright (C) 2019 Hangzhou C-SKY Microsystems co.,ltd. + * Mapping of DWARF debug register numbers into register names. + */ + +#include <stddef.h> +#include <errno.h> /* for EINVAL */ +#include <string.h> /* for strcmp */ +#include <dwarf-regs.h> + +struct pt_regs_dwarfnum { + const char *name; + unsigned int dwarfnum; +}; + +#define REG_DWARFNUM_NAME(r, num) {.name = r, .dwarfnum = num} +#define REG_DWARFNUM_END {.name = NULL, .dwarfnum = 0} + +struct pt_regs_dwarfnum riscv_dwarf_regs_table[] = { + REG_DWARFNUM_NAME("%zero", 0), + REG_DWARFNUM_NAME("%ra", 1), + REG_DWARFNUM_NAME("%sp", 2), + REG_DWARFNUM_NAME("%gp", 3), + REG_DWARFNUM_NAME("%tp", 4), + REG_DWARFNUM_NAME("%t0", 5), + REG_DWARFNUM_NAME("%t1", 6), + REG_DWARFNUM_NAME("%t2", 7), + REG_DWARFNUM_NAME("%s0", 8), + REG_DWARFNUM_NAME("%s1", 9), + REG_DWARFNUM_NAME("%a0", 10), + REG_DWARFNUM_NAME("%a1", 11), + REG_DWARFNUM_NAME("%a2", 12), + REG_DWARFNUM_NAME("%a3", 13), + REG_DWARFNUM_NAME("%a4", 14), + REG_DWARFNUM_NAME("%a5", 15), + REG_DWARFNUM_NAME("%a6", 16), + REG_DWARFNUM_NAME("%a7", 17), + REG_DWARFNUM_NAME("%s2", 18), + REG_DWARFNUM_NAME("%s3", 19), + REG_DWARFNUM_NAME("%s4", 20), + REG_DWARFNUM_NAME("%s5", 21), + REG_DWARFNUM_NAME("%s6", 22), + REG_DWARFNUM_NAME("%s7", 23), + REG_DWARFNUM_NAME("%s8", 24), + REG_DWARFNUM_NAME("%s9", 25), + REG_DWARFNUM_NAME("%s10", 26), + REG_DWARFNUM_NAME("%s11", 27), + REG_DWARFNUM_NAME("%t3", 28), + REG_DWARFNUM_NAME("%t4", 29), + REG_DWARFNUM_NAME("%t5", 30), + REG_DWARFNUM_NAME("%t6", 31), + REG_DWARFNUM_END, +}; + +#define RISCV_MAX_REGS ((sizeof(riscv_dwarf_regs_table) / \ + sizeof(riscv_dwarf_regs_table[0])) - 1) + +const char *get_arch_regstr(unsigned int n) +{ + return (n < RISCV_MAX_REGS) ? riscv_dwarf_regs_table[n].name : NULL; +} + +int regs_query_register_offset(const char *name) +{ + const struct pt_regs_dwarfnum *roff; + + for (roff = riscv_dwarf_regs_table; roff->name; roff++) + if (!strcmp(roff->name, name)) + return roff->dwarfnum; + return -EINVAL; +} |