backends: Handle new RISC-V specific definitions

Handle PT_RISCV_ATTRIBUTES, SHT_RISCV_ATTRIBUTES, DT_RISCV_VARIANT_CC.

Signed-off-by: Andreas Schwab <schwab@suse.de>

3 files changed, 58 insertions, 0 deletions

diff --git a/backends/ChangeLog b/backends/ChangeLog
index 495cdde4..5b0daffe 100644
--- a/backends/ChangeLog
+++ b/backends/ChangeLog
@@ -1,3 +1,12 @@
+2022-08-09  Andreas Schwab  <schwab@suse.de>
+
+	* riscv_init.c (riscv_init): HOOK segment_type_name,
+	section_type_name, dynamic_tag_name and dynamic_tag_check.
+	* riscv_symbol.c (riscv_segment_type_name): New function.
+	(riscv_section_type_name): Likewise.
+	(riscv_dynamic_tag_name): Likewise.
+	(riscv_dynamic_tag_check): Likewise.
+
 2022-06-01  Ulrich Drepper  <drepper@redhat.com>
 
 	* Makefile.am (arm_SRCS): Add arm_machineflagname.c.
diff --git a/backends/riscv_init.c b/backends/riscv_init.c
index 141e0821..f2d46082 100644
--- a/backends/riscv_init.c
+++ b/backends/riscv_init.c
@@ -65,6 +65,10 @@ riscv_init (Elf *elf,
   HOOK (eh, check_special_symbol);
   HOOK (eh, machine_flag_check);
   HOOK (eh, set_initial_registers_tid);
+  HOOK (eh, segment_type_name);
+  HOOK (eh, section_type_name);
+  HOOK (eh, dynamic_tag_name);
+  HOOK (eh, dynamic_tag_check);
   if (eh->class == ELFCLASS64)
     eh->core_note = riscv64_core_note;
   else
diff --git a/backends/riscv_symbol.c b/backends/riscv_symbol.c
index c34b7702..c149b8ba 100644
--- a/backends/riscv_symbol.c
+++ b/backends/riscv_symbol.c
@@ -119,3 +119,48 @@ riscv_check_special_symbol (Elf *elf, const GElf_Sym *sym,
 
   return false;
 }
+
+const char *
+riscv_segment_type_name (int segment, char *buf __attribute__ ((unused)),
+			 size_t len __attribute__ ((unused)))
+{
+  switch (segment)
+    {
+    case PT_RISCV_ATTRIBUTES:
+      return "RISCV_ATTRIBUTES";
+    }
+  return NULL;
+}
+
+/* Return symbolic representation of section type.  */
+const char *
+riscv_section_type_name (int type,
+			 char *buf __attribute__ ((unused)),
+			 size_t len __attribute__ ((unused)))
+{
+  switch (type)
+    {
+    case SHT_RISCV_ATTRIBUTES:
+      return "RISCV_ATTRIBUTES";
+    }
+
+  return NULL;
+}
+
+const char *
+riscv_dynamic_tag_name (int64_t tag, char *buf __attribute__ ((unused)),
+			size_t len __attribute__ ((unused)))
+{
+  switch (tag)
+    {
+    case DT_RISCV_VARIANT_CC:
+      return "RISCV_VARIANT_CC";
+    }
+  return NULL;
+}
+
+bool
+riscv_dynamic_tag_check (int64_t tag)
+{
+  return tag == DT_RISCV_VARIANT_CC;
+}