diff options
| -rw-r--r-- | arch/loongarch/Kconfig | 2 | ||||
| -rw-r--r-- | scripts/recordmcount.c | 39 |
2 files changed, 41 insertions, 0 deletions
diff --git a/arch/loongarch/Kconfig b/arch/loongarch/Kconfig index 72a41e08f9f4..8b81cf9a6503 100644 --- a/arch/loongarch/Kconfig +++ b/arch/loongarch/Kconfig @@ -85,11 +85,13 @@ config LOONGARCH select HAVE_ARCH_TRANSPARENT_HUGEPAGE select HAVE_ASM_MODVERSIONS select HAVE_CONTEXT_TRACKING_USER + select HAVE_C_RECORDMCOUNT select HAVE_DEBUG_STACKOVERFLOW select HAVE_DMA_CONTIGUOUS select HAVE_EBPF_JIT select HAVE_EXIT_THREAD select HAVE_FAST_GUP + select HAVE_FTRACE_MCOUNT_RECORD select HAVE_FUNCTION_GRAPH_TRACER select HAVE_FUNCTION_TRACER select HAVE_GENERIC_VDSO diff --git a/scripts/recordmcount.c b/scripts/recordmcount.c index cce12e1971d8..e30216525325 100644 --- a/scripts/recordmcount.c +++ b/scripts/recordmcount.c @@ -38,6 +38,14 @@ #define R_AARCH64_ABS64 257 #endif +#ifndef EM_LOONGARCH +#define EM_LOONGARCH 258 +#define R_LARCH_32 1 +#define R_LARCH_64 2 +#define R_LARCH_MARK_LA 20 +#define R_LARCH_SOP_PUSH_PLT_PCREL 29 +#endif + #define R_ARM_PC24 1 #define R_ARM_THM_CALL 10 #define R_ARM_CALL 28 @@ -441,6 +449,28 @@ static int arm64_is_fake_mcount(Elf64_Rel const *rp) return ELF64_R_TYPE(w8(rp->r_info)) != R_AARCH64_CALL26; } +static int LARCH32_is_fake_mcount(Elf32_Rel const *rp) +{ + switch (ELF64_R_TYPE(w(rp->r_info))) { + case R_LARCH_MARK_LA: + case R_LARCH_SOP_PUSH_PLT_PCREL: + return 0; + } + + return 1; +} + +static int LARCH64_is_fake_mcount(Elf64_Rel const *rp) +{ + switch (ELF64_R_TYPE(w(rp->r_info))) { + case R_LARCH_MARK_LA: + case R_LARCH_SOP_PUSH_PLT_PCREL: + return 0; + } + + return 1; +} + /* 64-bit EM_MIPS has weird ELF64_Rela.r_info. * http://techpubs.sgi.com/library/manuals/4000/007-4658-001/pdf/007-4658-001.pdf * We interpret Table 29 Relocation Operation (Elf64_Rel, Elf64_Rela) [p.40] @@ -558,6 +588,7 @@ static int do_file(char const *const fname) break; case EM_IA_64: reltype = R_IA64_IMM64; break; case EM_MIPS: /* reltype: e_class */ break; + case EM_LOONGARCH: /* reltype: e_class */ break; case EM_PPC: reltype = R_PPC_ADDR32; break; case EM_PPC64: reltype = R_PPC64_ADDR64; break; case EM_S390: /* reltype: e_class */ break; @@ -589,6 +620,10 @@ static int do_file(char const *const fname) reltype = R_MIPS_32; is_fake_mcount32 = MIPS32_is_fake_mcount; } + if (w2(ehdr->e_machine) == EM_LOONGARCH) { + reltype = R_LARCH_32; + is_fake_mcount32 = LARCH32_is_fake_mcount; + } if (do32(ehdr, fname, reltype) < 0) goto out; break; @@ -610,6 +645,10 @@ static int do_file(char const *const fname) Elf64_r_info = MIPS64_r_info; is_fake_mcount64 = MIPS64_is_fake_mcount; } + if (w2(ghdr->e_machine) == EM_LOONGARCH) { + reltype = R_LARCH_64; + is_fake_mcount64 = LARCH64_is_fake_mcount; + } if (do64(ghdr, fname, reltype) < 0) goto out; break; |