diff options
Diffstat (limited to 'cpukit/libdl/rtl-mdreloc-aarch64.c')
| -rw-r--r-- | cpukit/libdl/rtl-mdreloc-aarch64.c | 38 |
1 files changed, 38 insertions, 0 deletions
diff --git a/cpukit/libdl/rtl-mdreloc-aarch64.c b/cpukit/libdl/rtl-mdreloc-aarch64.c index 4c51d97a78..e44238e636 100644 --- a/cpukit/libdl/rtl-mdreloc-aarch64.c +++ b/cpukit/libdl/rtl-mdreloc-aarch64.c @@ -79,6 +79,7 @@ __RCSID("$NetBSD: mdreloc.c,v 1.14 2020/06/16 21:01:30 joerg Exp $"); #include "rtl-error.h" #include <rtems/rtl/rtl-trace.h> #include "rtl-unwind-arm.h" +#include <rtems/score/tls.h> struct tls_data { size_t td_tlsindex; @@ -237,6 +238,7 @@ rtems_rtl_elf_reloc_rela (rtems_rtl_obj* obj, * A - the addend of the reolcation * P - the address of the place being relocated (derived from r_offset) * Page(expr) - the page address of the expression expr, defined as (expr & ~0xFFF). + * TPREL(expr) - the thread pointer offset of the expression expr */ switch (ELF_R_TYPE(rela->r_info)) { case R_TYPE(NONE): @@ -286,6 +288,42 @@ rtems_rtl_elf_reloc_rela (rtems_rtl_obj* obj, printf("rtl: reloc COPY (please report)\n"); break; + case R_AARCH64_ADD_TPREL_HI12: /* TPREL(S + A) */ + case R_AARCH64_ADD_TPREL_LO12: + case R_AARCH64_ADD_TPREL_LO12_NC: + uint32_t of_check = 0; + switch (ELF_R_TYPE(rela->r_info)) { + case R_AARCH64_ADD_TPREL_LO12: + of_check = 212; + /* fallthrough */ + case R_AARCH64_ADD_TPREL_LO12_NC: + shift = 0; + break; + case R_AARCH64_ADD_TPREL_HI12: + of_check = 224; + shift = 12; + break; + default: + printf("illegal rtype: %ld\n", ELF_R_TYPE(rela->r_info)); + break; + } + + if (!parsing) { + target = (Elf_Addr)symvalue + rela->r_addend; + /* Calculate offset accounting for the DTV */ + target -= (uintptr_t)_TLS_Data_begin; + target += sizeof(TLS_Dynamic_thread_vector); + + target >>= shift; + target &= WIDTHMASK(12); + if (of_check && target >= of_check) { + return rtems_rtl_elf_rel_failure; + } + *insn = htole32( + (le32toh(*insn) & ~__BITS(21,10)) | (target << 10)); + } + break; + case R_AARCH64_ADD_ABS_LO12_NC: /* S + A */ case R_AARCH64_LDST8_ABS_LO12_NC: case R_AARCH_LDST16_ABS_LO12_NC: |