A basic patch now.

RTL linker for mips

From 0f541ee952030aae37d2214cd26a09c61c6be16f Mon Sep 17 00:00:00 2001
From: Peng Fan <van.freenix@gmail.com>
Date: Wed, 1 May 2013 13:09:11 +0800
Subject: [PATCH] Arm && Mips

---
 .gitignore                     |    1 +
 elftoolchain/libelf/elf_data.c |   26 ++++++++++++++++++++++++++
 rld-files.cpp                  |    3 ++-
 rld-rap.cpp                    |   18 ++++++++++++++++--
 4 files changed, 45 insertions(+), 3 deletions(-)

diff --git a/.gitignore b/.gitignore
index c80a859..99e0316 100644
--- a/.gitignore
+++ b/.gitignore
@@ -2,3 +2,4 @@
 build-*
 *.rap
 *.pyc
+test.c
diff --git a/elftoolchain/libelf/elf_data.c b/elftoolchain/libelf/elf_data.c
index 5ac6453..f1016ad 100644
--- a/elftoolchain/libelf/elf_data.c
+++ b/elftoolchain/libelf/elf_data.c
@@ -87,6 +87,31 @@ elf_getdata(Elf_Scn *s, Elf_Data *d)
 		return (NULL);
 	}
 
+	if (s->s_elf->e_u.e_elf.e_ehdr.e_ehdr32->e_machine == EM_ARM) {
+		if (sh_type == 0x70000003 || sh_type == 0x70000001) {
+			//printf("arm sh_type 0x%x\n", sh_type);
+			// freenix
+			if ((d = _libelf_allocate_data(s)) == NULL)
+				return (NULL);
+			d->d_buf = 0;
+			d->d_size = 0;
+			return (d);
+		}
+	}
+	if (s->s_elf->e_u.e_elf.e_ehdr.e_ehdr32->e_machine == EM_MIPS) {
+		if ((sh_type == 0x70000006) || (sh_type == 0x7000001e) ||
+			(sh_type == 0x6ffffff5)) {
+			//printf("mips sh_type 0x%x\n", sh_type);
+			//freenix not sure whether this is right
+			if ((d = _libelf_allocate_data(s)) == NULL)
+				return (NULL);
+			d->d_buf = 0;
+			d->d_size = 0;
+			return (d);
+		}
+	}
+  //printf("freenix %x %x\n", (sh_type), ELF_T_FIRST);
+
 	if ((elftype = _libelf_xlate_shtype(sh_type)) < ELF_T_FIRST ||
 	    elftype > ELF_T_LAST || (sh_type != SHT_NOBITS &&
 	    sh_offset + sh_size > (uint64_t) e->e_rawsize)) {
@@ -101,6 +126,7 @@ elf_getdata(Elf_Scn *s, Elf_Data *d)
 	}
 
 	if (sh_size % fsz) {
+					printf("2222\n");
 		LIBELF_SET_ERROR(SECTION, 0);
 		return (NULL);
 	}
diff --git a/rld-files.cpp b/rld-files.cpp
index 9887e48..4693594 100644
--- a/rld-files.cpp
+++ b/rld-files.cpp
@@ -1514,7 +1514,8 @@ namespace rld
         object* obj = (*oi).second;
         obj->open ();
         obj->begin ();
-        obj->load_symbols (symbols, local);
+        //obj->load_symbols (symbols, local); //freenix
+				obj->load_symbols (symbols, true); //freenix
         obj->end ();
         obj->close ();
       }
diff --git a/rld-rap.cpp b/rld-rap.cpp
index 8b3bbcb..e9263b1 100644
--- a/rld-rap.cpp
+++ b/rld-rap.cpp
@@ -931,12 +931,26 @@ namespace rld
            ++ei)
       {
         const symbols::symbol& sym = *(*ei);
+				std::string debug_sym;
 
-        if ((sym.type () == STT_OBJECT) || (sym.type () == STT_FUNC))
+		/* remove debug related symbols */
+		debug_sym = obj.obj.get_section(sym.section_index()).name;
+		if (debug_sym.find("debug") != -1)
+				continue;
+
+        if ((sym.type () == STT_OBJECT) || (sym.type () == STT_FUNC) || 
+			((elf::object_machine_type () == EM_MIPS) && 
+		        (sym.type ()== STT_NOTYPE)&& (sym.binding () == STB_LOCAL)))
         {
-          if ((sym.binding () == STB_GLOBAL) || (sym.binding () == STB_WEAK))
+          if ((sym.binding () == STB_GLOBAL) || (sym.binding () == STB_WEAK) ||
+					((elf::object_machine_type () == EM_MIPS) && 
+					(sym.type ()== STT_NOTYPE)&& (sym.binding () == STB_LOCAL)))
           {
+			std::cout << "collect_symbols: " << sym.name() <<std::endl;
+			std::cout << "type: " << sym.type() <<" binding: " <<sym.binding()<<std::endl;
             int        symsec = sym.section_index ();
+			if (symsec == 0)
+				continue; //ignore the first null section [freenix]
             sections    rap_sec = obj.find (symsec);
             section&    sec = obj.secs[rap_sec];
             std::size_t name;
-- 
1.7.10.4