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-rw-r--r--cpukit/libdl/rtl-mdreloc-sparc.c160
1 files changed, 133 insertions, 27 deletions
diff --git a/cpukit/libdl/rtl-mdreloc-sparc.c b/cpukit/libdl/rtl-mdreloc-sparc.c
index f8a4312a8a..9810de988e 100644
--- a/cpukit/libdl/rtl-mdreloc-sparc.c
+++ b/cpukit/libdl/rtl-mdreloc-sparc.c
@@ -87,46 +87,66 @@ static const uint32_t reloc_target_flags[] = {
_RF_G| _RF_SZ(32) | _RF_RS(10), /* GOT22 */
_RF_S|_RF_A|_RF_P| _RF_SZ(32) | _RF_RS(0), /* PC10 */
_RF_S|_RF_A|_RF_P| _RF_SZ(32) | _RF_RS(10), /* PC22 */
- _RF_A|_RF_P| _RF_SZ(32) | _RF_RS(2), /* WPLT30 */
- _RF_SZ(32) | _RF_RS(0), /* COPY */
+ _RF_A|_RF_P| _RF_SZ(32) | _RF_RS(2), /* WPLT30 */
+ _RF_SZ(32) | _RF_RS(0), /* COPY */
_RF_S|_RF_A| _RF_SZ(32) | _RF_RS(0), /* GLOB_DAT */
- _RF_SZ(32) | _RF_RS(0), /* JMP_SLOT */
- _RF_A| _RF_B|_RF_SZ(32) | _RF_RS(0), /* RELATIVE */
- _RF_S|_RF_A| _RF_U|_RF_SZ(32) | _RF_RS(0), /* UA_32 */
+ _RF_SZ(32) | _RF_RS(0), /* JMP_SLOT */
+ _RF_A| _RF_B| _RF_SZ(32) | _RF_RS(0), /* RELATIVE */
+ _RF_S|_RF_A|_RF_U| _RF_SZ(32) | _RF_RS(0), /* UA_32 */
+
+ /* TLS and 64 bit relocs not listed here... */
};
+#define RELOC_TARGET_FLAGS_SIZE \
+ (sizeof(reloc_target_flags) / sizeof(reloc_target_flags[0]))
-#define NOT_CURRENTLY_USED_BUT_MAYBE_USEFUL
-#ifdef NOT_CURRENTLY_USED_BUT_MAYBE_USEFUL
+#define RTLD_DEBUG_RELOC
+#ifdef RTLD_DEBUG_RELOC
static const char *reloc_names[] = {
"NONE", "RELOC_8", "RELOC_16", "RELOC_32", "DISP_8",
"DISP_16", "DISP_32", "WDISP_30", "WDISP_22", "HI22",
"22", "13", "LO10", "GOT10", "GOT13",
"GOT22", "PC10", "PC22", "WPLT30", "COPY",
- "GLOB_DAT", "JMP_SLOT", "RELATIVE", "UA_32"
+ "GLOB_DAT", "JMP_SLOT", "RELATIVE", "UA_32",
+
+ /* not used with 32bit userland, besides a few of the TLS ones */
+ "PLT32",
+ "HIPLT22", "LOPLT10", "LOPLT10", "PCPLT22", "PCPLT32",
+ "10", "11", "64", "OLO10", "HH22",
+ "HM10", "LM22", "PC_HH22", "PC_HM10", "PC_LM22",
+ "WDISP16", "WDISP19", "GLOB_JMP", "7", "5", "6",
+ "DISP64", "PLT64", "HIX22", "LOX10", "H44", "M44",
+ "L44", "REGISTER", "UA64", "UA16",
+ "TLS_GD_HI22", "TLS_GD_LO10", "TLS_GD_ADD", "TLS_GD_CALL",
+ "TLS_LDM_HI22", "TLS_LDM_LO10", "TLS_LDM_ADD", "TLS_LDM_CALL",
+ "TLS_LDO_HIX22", "TLS_LDO_LOX10", "TLS_LDO_ADD", "TLS_IE_HI22",
+ "TLS_IE_LO10", "TLS_IE_LD", "TLS_IE_LDX", "TLS_IE_ADD", "TLS_LE_HIX22",
+ "TLS_LE_LOX10", "TLS_DTPMOD32", "TLS_DTPMOD64", "TLS_DTPOFF32",
+ "TLS_DTPOFF64", "TLS_TPOFF32", "TLS_TPOFF64",
};
#endif
-#define RELOC_RESOLVE_SYMBOL(t) ((reloc_target_flags[t] & _RF_S) != 0)
-#define RELOC_PC_RELATIVE(t) ((reloc_target_flags[t] & _RF_P) != 0)
-#define RELOC_BASE_RELATIVE(t) ((reloc_target_flags[t] & _RF_B) != 0)
-#define RELOC_UNALIGNED(t) ((reloc_target_flags[t] & _RF_U) != 0)
-#define RELOC_USE_ADDEND(t) ((reloc_target_flags[t] & _RF_A) != 0)
-#define RELOC_TARGET_SIZE(t) ((reloc_target_flags[t] >> 8) & 0xff)
-#define RELOC_VALUE_RIGHTSHIFT(t) (reloc_target_flags[t] & 0xff)
+#define RELOC_RESOLVE_SYMBOL(t) ((reloc_target_flags[t] & _RF_S) != 0)
+#define RELOC_PC_RELATIVE(t) ((reloc_target_flags[t] & _RF_P) != 0)
+#define RELOC_BASE_RELATIVE(t) ((reloc_target_flags[t] & _RF_B) != 0)
+#define RELOC_UNALIGNED(t) ((reloc_target_flags[t] & _RF_U) != 0)
+#define RELOC_USE_ADDEND(t) ((reloc_target_flags[t] & _RF_A) != 0)
+#define RELOC_TARGET_SIZE(t) ((reloc_target_flags[t] >> 8) & 0xff)
+#define RELOC_VALUE_RIGHTSHIFT(t) (reloc_target_flags[t] & 0xff)
+#define RELOC_TLS(t) (t >= R_TYPE(TLS_GD_HI22))
static const int reloc_target_bitmask[] = {
#define _BM(x) (~(-(1ULL << (x))))
- 0, /* NONE */
- _BM(8), _BM(16), _BM(32), /* RELOC_8, _16, _32 */
- _BM(8), _BM(16), _BM(32), /* DISP8, DISP16, DISP32 */
- _BM(30), _BM(22), /* WDISP30, WDISP22 */
- _BM(22), _BM(22), /* HI22, _22 */
- _BM(13), _BM(10), /* RELOC_13, _LO10 */
- _BM(10), _BM(13), _BM(22), /* GOT10, GOT13, GOT22 */
- _BM(10), _BM(22), /* _PC10, _PC22 */
- _BM(30), 0, /* _WPLT30, _COPY */
- -1, -1, -1, /* _GLOB_DAT, JMP_SLOT, _RELATIVE */
- _BM(32) /* _UA32 */
+ 0, /* NONE */
+ _BM(8), _BM(16), _BM(32), /* RELOC_8, _16, _32 */
+ _BM(8), _BM(16), _BM(32), /* DISP8, DISP16, DISP32 */
+ _BM(30), _BM(22), /* WDISP30, WDISP22 */
+ _BM(22), _BM(22), /* HI22, _22 */
+ _BM(13), _BM(10), /* RELOC_13, _LO10 */
+ _BM(10), _BM(13), _BM(22), /* GOT10, GOT13, GOT22 */
+ _BM(10), _BM(22), /* _PC10, _PC22 */
+ _BM(30), 0, /* _WPLT30, _COPY */
+ -1, -1, -1, /* _GLOB_DAT, JMP_SLOT, _RELATIVE */
+ _BM(32) /* _UA32 */
#undef _BM
};
#define RELOC_VALUE_BITMASK(t) (reloc_target_bitmask[t])
@@ -173,7 +193,26 @@ rtems_rtl_elf_arch_section_free (const rtems_rtl_obj* obj,
bool
rtems_rtl_elf_rel_resolve_sym (Elf_Word type)
{
- return RELOC_RESOLVE_SYMBOL (type) ? true : false;
+ bool r = false;
+ if (type < RELOC_TARGET_FLAGS_SIZE) {
+ r = RELOC_RESOLVE_SYMBOL (type) ? true : false;
+ }
+ switch (type) {
+ case R_TYPE(TLS_DTPOFF32):
+ case R_TYPE(TLS_LE_HIX22):
+ case R_TYPE(TLS_LE_LOX10):
+ r = true;
+ break;
+ default:
+ break;
+ }
+ return r;
+}
+
+uint32_t rtems_rtl_obj_tramp_alignment (const rtems_rtl_obj* obj)
+{
+ (void) obj;
+ return sizeof(uint32_t);
}
size_t
@@ -241,6 +280,73 @@ rtems_rtl_elf_relocate_rela (rtems_rtl_obj* obj,
value = rela->r_addend;
/*
+ * Handle TLS relocations here, they are different.
+ */
+ if (RELOC_TLS(type)) {
+ switch (type) {
+ case R_TYPE(TLS_DTPMOD32):
+ #if NETBSD_CODE__NOT_USED
+ *where = (Elf_Addr)defobj->tlsindex;
+ #endif
+
+ if (rtems_rtl_trace (RTEMS_RTL_TRACE_RELOC))
+ printf("rtl: reloc: TLS_DTPMOD32 %s in %s --> %p\n",
+ symname, rtems_rtl_obj_oname (obj), (void *)*where);
+ break;
+
+ case R_TYPE(TLS_DTPOFF32):
+ *where = (Elf_Addr)(symvalue + rela->r_addend);
+
+ if (rtems_rtl_trace (RTEMS_RTL_TRACE_RELOC))
+ printf("rtl: reloc: TLS_DTPOFF32 %s in %s --> %p\n",
+ symname, rtems_rtl_obj_oname (obj), (void *)*where);
+ break;
+
+ case R_TYPE(TLS_TPOFF32):
+ #if NETBSD_CODE__NOT_USED
+ if (!defobj->tls_static &&
+ _rtld_tls_offset_allocate(__UNCONST(defobj)))
+ return ;
+
+ *where = (Elf_Addr)(def->st_value -
+ defobj->tlsoffset + rela->r_addend);
+ #endif
+ if (rtems_rtl_trace (RTEMS_RTL_TRACE_RELOC))
+ printf("rtl: reloc: TLS_TPOFF32 %s in %s --> %p\n",
+ symname, rtems_rtl_obj_oname (obj), (void *)*where);
+ return rtems_rtl_elf_rel_failure;
+
+ case R_TYPE(TLS_LE_HIX22):
+ *where |= ((symvalue + rela->r_addend) ^ 0xffffffff) >> 10;
+ if (rtems_rtl_trace (RTEMS_RTL_TRACE_RELOC))
+ printf("rtl: reloc: R_SPARC_TLS_LE_HIX22 %s in %s --> %p\n",
+ symname, rtems_rtl_obj_oname (obj), (void *)*where);
+ break;
+
+ case R_TYPE(TLS_LE_LOX10):
+ *where |= ((symvalue + rela->r_addend) & 0x3ff) | 0x1c00;
+ if (rtems_rtl_trace (RTEMS_RTL_TRACE_RELOC))
+ printf("rtl: reloc: R_SPARC_TLS_LE_LOX10 %s in %s --> %p\n",
+ symname, rtems_rtl_obj_oname (obj), (void *)*where);
+ break;
+
+ default:
+ if (rtems_rtl_trace (RTEMS_RTL_TRACE_RELOC))
+ printf("rtl: reloc: unknown TLS relo: %d for %s in %s --> %p\n",
+ type, symname, rtems_rtl_obj_oname (obj), (void *)*where);
+ return rtems_rtl_elf_rel_failure;
+ }
+ return rtems_rtl_elf_rel_no_error;
+ }
+
+ /*
+ * If it is no TLS relocation (handled above), we can not
+ * deal with it if it is beyond R_SPARC_6.
+ */
+ if (type > R_TYPE(6))
+ return rtems_rtl_elf_rel_failure;
+
+ /*
* Handle relative relocs here, as an optimization.
*/
if (type == R_TYPE (RELATIVE)) {
generated by cgit v1.2.3 (git 2.25.1) at 2024-04-30 12:46:32 +0000