Update linker script - eh_frame support

Linker script updated to include deffinitions for: __eh_frame_start, __eh_frame_end, __eh_frame_hdr_start and __eh_frame_hdr_end symbols. Change-Id: I6be191d3d6b2a28b13881ed1b1b2c5d68c0a37b4
MediaTek-Labs · Sep 16, 2024 · 5c21fac · 5c21fac
1 parent 1972341
commit 5c21fac
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Showing 2 changed files with 9 additions and 1 deletion.
diff --git a/libgloss/mips/mti32.ld b/libgloss/mips/mti32.ld
@@ -58,11 +58,15 @@ SECTIONS
   .eh_frame_hdr : { *(.eh_frame_hdr) *(.eh_frame_entry .eh_frame_entry.*) }
   .eh_frame :
   {
+    __eh_frame_start = .;
     /* The .eh_frame section from the crtend file contains the
        end of eh_frame marker and it must be last.  */
     KEEP (*(EXCLUDE_FILE (*crtend.o) .eh_frame))
     KEEP (*(.eh_frame))
+    __eh_frame_end = .;
   }
+  __eh_frame_hdr_start = SIZEOF(.eh_frame_hdr) > 0 ? ADDR(.eh_frame_hdr) : 0;
+  __eh_frame_hdr_end = SIZEOF(.eh_frame_hdr) > 0 ? . : 0;
   .gcc_except_table : { *(.gcc_except_table .gcc_except_table.*) }
   .gnu_extab   : { *(.gnu_extab .gnu_extab.*) }
   .jcr : { KEEP (*(.jcr)) }

diff --git a/libgloss/mips/uhi32.ld b/libgloss/mips/uhi32.ld
@@ -7,7 +7,7 @@
 __entry = DEFINED(__reset_vector) ? 0xbfc00000 : _start;
 ENTRY(__entry)
 OUTPUT_FORMAT("elf32-tradlittlemips", "elf32-tradbigmips", "elf32-tradlittlemips")
-GROUP(-lc -luhi -lgcc -lhal)
+GROUP(-lc -luhi -lhal)
 SEARCH_DIR(.)
 __DYNAMIC  =  0;
 STARTUP(crt0.o)
@@ -183,11 +183,15 @@ SECTIONS
   .eh_frame_hdr : { *(.eh_frame_hdr) *(.eh_frame_entry .eh_frame_entry.*) }
   .eh_frame :
   {
+    __eh_frame_start = .;
     /* The .eh_frame section from the crtend file contains the
        end of eh_frame marker and it must be last.  */
     KEEP (*(EXCLUDE_FILE (*crtend.o) .eh_frame))
     KEEP (*(.eh_frame))
+    __eh_frame_end = .;
   }
+  __eh_frame_hdr_start = SIZEOF(.eh_frame_hdr) > 0 ? ADDR(.eh_frame_hdr) : 0;
+  __eh_frame_hdr_end = SIZEOF(.eh_frame_hdr) > 0 ? . : 0;
 
   .gcc_except_table : { *(.gcc_except_table .gcc_except_table.*) }
   .gnu_extab : { *(.gnu_extab .gnu_extab.*) }