diff options
Diffstat (limited to 'binutils/dwarf.c')
| -rw-r--r-- | binutils/dwarf.c | 41 |
1 files changed, 38 insertions, 3 deletions
diff --git a/binutils/dwarf.c b/binutils/dwarf.c index 483d7c0..06ef1f7 100644 --- a/binutils/dwarf.c +++ b/binutils/dwarf.c @@ -7591,12 +7591,47 @@ static const char *const dwarf_regnames_riscv[] = "ft8", "ft9", "ft10", "ft11" /* 60 - 63 */ }; +/* A RISC-V replacement for REGNAME_INTERNAL_BY_TABLE_ONLY which handles + the large number of CSRs. */ + +static const char * +regname_internal_riscv (unsigned int regno) +{ + const char *name = NULL; + + /* Lookup in the table first, this covers GPR and FPR. */ + if (regno < ARRAY_SIZE (dwarf_regnames_riscv)) + name = dwarf_regnames_riscv [regno]; + else if (regno >= 4096 && regno <= 8191) + { + /* This might be a CSR, these live in a sparse number space from 4096 + to 8191 These numbers are defined in the RISC-V ELF ABI + document. */ + switch (regno) + { +#define DECLARE_CSR(NAME,VALUE) case VALUE + 4096: name = #NAME; break; +#include "opcode/riscv-opc.h" +#undef DECLARE_CSR + + default: + { + static char csr_name[10]; + snprintf (csr_name, sizeof (csr_name), "csr%d", (regno - 4096)); + name = csr_name; + } + break; + } + } + + return name; +} + static void init_dwarf_regnames_riscv (void) { - dwarf_regnames = dwarf_regnames_riscv; - dwarf_regnames_count = ARRAY_SIZE (dwarf_regnames_riscv); - dwarf_regnames_lookup_func = regname_internal_by_table_only; + dwarf_regnames = NULL; + dwarf_regnames_count = 8192; + dwarf_regnames_lookup_func = regname_internal_riscv; } void |