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-rw-r--r--ldso/ldso/sh/boot1_arch.h23
-rw-r--r--ldso/ldso/sh/dl-startup.h23
-rw-r--r--ldso/ldso/sh/dl-syscalls.h7
-rw-r--r--ldso/ldso/sh/dl-sysdep.h145
-rw-r--r--ldso/ldso/sh/elfinterp.c416
-rw-r--r--ldso/ldso/sh/ld_syscalls.h7
-rw-r--r--ldso/ldso/sh/ld_sysdep.h145
-rw-r--r--ldso/ldso/sh/resolve.S69
8 files changed, 835 insertions, 0 deletions
diff --git a/ldso/ldso/sh/boot1_arch.h b/ldso/ldso/sh/boot1_arch.h
new file mode 100644
index 000000000..798121dc0
--- /dev/null
+++ b/ldso/ldso/sh/boot1_arch.h
@@ -0,0 +1,23 @@
+/* Any assmbly language/system dependent hacks needed to setup boot1.c so it
+ * will work as expected and cope with whatever platform specific wierdness is
+ * needed for this architecture. */
+
+asm("\
+ .text
+ .globl _dl_boot
+_dl_boot:
+ mov r15, r4
+ mov.l .L_dl_boot2, r1
+ mova .L_dl_boot2, r0
+ add r1, r0
+ jsr @r0
+ add #4, r4
+ jmp @r0
+ mov #0, r4 /* call _start with arg == 0 */
+.L_dl_boot2:\n\
+ .long _dl_boot2-.\n\
+ .previous\n\
+");
+
+#define _dl_boot _dl_boot2
+#define LD_BOOT(X) static void * __attribute__ ((unused)) _dl_boot (X)
diff --git a/ldso/ldso/sh/dl-startup.h b/ldso/ldso/sh/dl-startup.h
new file mode 100644
index 000000000..798121dc0
--- /dev/null
+++ b/ldso/ldso/sh/dl-startup.h
@@ -0,0 +1,23 @@
+/* Any assmbly language/system dependent hacks needed to setup boot1.c so it
+ * will work as expected and cope with whatever platform specific wierdness is
+ * needed for this architecture. */
+
+asm("\
+ .text
+ .globl _dl_boot
+_dl_boot:
+ mov r15, r4
+ mov.l .L_dl_boot2, r1
+ mova .L_dl_boot2, r0
+ add r1, r0
+ jsr @r0
+ add #4, r4
+ jmp @r0
+ mov #0, r4 /* call _start with arg == 0 */
+.L_dl_boot2:\n\
+ .long _dl_boot2-.\n\
+ .previous\n\
+");
+
+#define _dl_boot _dl_boot2
+#define LD_BOOT(X) static void * __attribute__ ((unused)) _dl_boot (X)
diff --git a/ldso/ldso/sh/dl-syscalls.h b/ldso/ldso/sh/dl-syscalls.h
new file mode 100644
index 000000000..793dc9110
--- /dev/null
+++ b/ldso/ldso/sh/dl-syscalls.h
@@ -0,0 +1,7 @@
+/* Define the __set_errno macro as nothing so that we don't bother
+ * setting errno, which is important since we make system calls
+ * before the errno symbol is dynamicly linked. */
+
+#define __set_errno(X)
+#include "sys/syscall.h"
+
diff --git a/ldso/ldso/sh/dl-sysdep.h b/ldso/ldso/sh/dl-sysdep.h
new file mode 100644
index 000000000..dc1b895b9
--- /dev/null
+++ b/ldso/ldso/sh/dl-sysdep.h
@@ -0,0 +1,145 @@
+/*
+ * Various assmbly language/system dependent hacks that are required
+ * so that we can minimize the amount of platform specific code.
+ */
+
+/*
+ * Define this if the system uses RELOCA.
+ */
+#define ELF_USES_RELOCA
+
+/*
+ * Get a pointer to the argv array. On many platforms this can be just
+ * the address if the first argument, on other platforms we need to
+ * do something a little more subtle here.
+ */
+#define GET_ARGV(ARGVP, ARGS) ARGVP = ((unsigned long*) ARGS)
+
+/*
+ * Initialization sequence for a GOT.
+ */
+#define INIT_GOT(GOT_BASE,MODULE) \
+{ \
+ GOT_BASE[2] = (unsigned long) _dl_linux_resolve; \
+ GOT_BASE[1] = (unsigned long) (MODULE); \
+}
+
+/*
+ * Here is a macro to perform a relocation. This is only used when
+ * bootstrapping the dynamic loader. RELP is the relocation that we
+ * are performing, REL is the pointer to the address we are relocating.
+ * SYMBOL is the symbol involved in the relocation, and LOAD is the
+ * load address.
+ */
+#define PERFORM_BOOTSTRAP_RELOC(RELP,REL,SYMBOL,LOAD) \
+ switch(ELF32_R_TYPE((RELP)->r_info)){ \
+ case R_SH_REL32: \
+ *(REL) += (RELP)->r_addend - (LOAD); \
+ break; \
+ case R_SH_DIR32: \
+ *(REL) += (SYMBOL) + (RELP)->r_addend; \
+ break; \
+ case R_SH_RELATIVE: \
+ *(REL) += (LOAD); \
+ break; \
+ case R_SH_NONE: \
+ break; \
+ default: \
+ SEND_STDERR("BOOTSTRAP_RELOC: unhandled reloc type "); \
+ SEND_NUMBER_STDERR(ELF32_R_TYPE((RELP)->r_info), 1); \
+ SEND_STDERR("REL, SYMBOL, LOAD: "); \
+ SEND_ADDRESS_STDERR(REL, 0); \
+ SEND_STDERR(", "); \
+ SEND_ADDRESS_STDERR(SYMBOL, 0); \
+ SEND_STDERR(", "); \
+ SEND_ADDRESS_STDERR(LOAD, 1); \
+ _dl_exit(1); \
+ }
+
+
+/*
+ * Transfer control to the user's application, once the dynamic loader
+ * is done. This routine has to exit the current function, then
+ * call the _dl_elf_main function.
+ */
+
+#define START() return _dl_elf_main;
+
+
+
+/* Here we define the magic numbers that this dynamic loader should accept */
+
+#define MAGIC1 EM_SH
+#undef MAGIC2
+/* Used for error messages */
+#define ELF_TARGET "sh"
+
+struct elf_resolve;
+extern unsigned long _dl_linux_resolver(struct elf_resolve * tpnt, int reloc_entry);
+
+static __inline__ unsigned int
+_dl_urem(unsigned int n, unsigned int base)
+{
+register unsigned int __r0 __asm__ ("r0");
+register unsigned int __r4 __asm__ ("r4") = n;
+register unsigned int __r5 __asm__ ("r5") = base;
+
+ __asm__ ("
+ mov #0, r0
+ div0u
+
+ ! get one bit from the msb of the numerator into the T
+ ! bit and divide it by whats in %2. Put the answer bit
+ ! into the T bit so it can come out again at the bottom
+
+ rotcl r4 ; div1 r5, r0
+ rotcl r4 ; div1 r5, r0
+ rotcl r4 ; div1 r5, r0
+ rotcl r4 ; div1 r5, r0
+ rotcl r4 ; div1 r5, r0
+ rotcl r4 ; div1 r5, r0
+ rotcl r4 ; div1 r5, r0
+ rotcl r4 ; div1 r5, r0
+
+ rotcl r4 ; div1 r5, r0
+ rotcl r4 ; div1 r5, r0
+ rotcl r4 ; div1 r5, r0
+ rotcl r4 ; div1 r5, r0
+ rotcl r4 ; div1 r5, r0
+ rotcl r4 ; div1 r5, r0
+ rotcl r4 ; div1 r5, r0
+ rotcl r4 ; div1 r5, r0
+
+ rotcl r4 ; div1 r5, r0
+ rotcl r4 ; div1 r5, r0
+ rotcl r4 ; div1 r5, r0
+ rotcl r4 ; div1 r5, r0
+ rotcl r4 ; div1 r5, r0
+ rotcl r4 ; div1 r5, r0
+ rotcl r4 ; div1 r5, r0
+ rotcl r4 ; div1 r5, r0
+
+ rotcl r4 ; div1 r5, r0
+ rotcl r4 ; div1 r5, r0
+ rotcl r4 ; div1 r5, r0
+ rotcl r4 ; div1 r5, r0
+ rotcl r4 ; div1 r5, r0
+ rotcl r4 ; div1 r5, r0
+ rotcl r4 ; div1 r5, r0
+ rotcl r4 ; div1 r5, r0
+ rotcl r4
+ mov r4, r0
+"
+ : "=r" (__r0)
+ : "r" (__r4), "r" (__r5)
+ : "r4", "cc");
+
+ return n - (base * __r0);
+}
+
+#define do_rem(result, n, base) ((result) = _dl_urem((n), (base)))
+
+/* 4096 bytes alignment */
+#define PAGE_ALIGN 0xfffff000
+#define ADDR_ALIGN 0xfff
+#define OFFS_ALIGN 0x7ffff000
diff --git a/ldso/ldso/sh/elfinterp.c b/ldso/ldso/sh/elfinterp.c
new file mode 100644
index 000000000..2a0ab9f7a
--- /dev/null
+++ b/ldso/ldso/sh/elfinterp.c
@@ -0,0 +1,416 @@
+/* vi: set sw=4 ts=4: */
+/* SuperH ELF shared library loader suppport
+ *
+ * Copyright (C) 2002, Stefan Allius <allius@atecom.com> and
+ * Eddie C. Dost <ecd@atecom.com>
+ *
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. The name of the above contributors may not be
+ * used to endorse or promote products derived from this software
+ * without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#if defined (SUPPORT_LD_DEBUG) || defined (LD_DEBUG_SYMBOLS)
+static const char *_dl_reltypes_tab[] =
+{
+ [0] "R_SH_NONE", "R_SH_DIR32", "R_SH_REL32", "R_SH_DIR8WPN",
+ [4] "R_SH_IND12W", "R_SH_DIR8WPL", "R_SH_DIR8WPZ", "R_SH_DIR8BP",
+ [8] "R_SH_DIR8W", "R_SH_DIR8L",
+ [25] "R_SH_SWITCH16","R_SH_SWITCH32","R_SH_USES",
+ [28] "R_SH_COUNT", "R_SH_ALIGN", "R_SH_CODE", "R_SH_DATA",
+ [32] "R_SH_LABEL", "R_SH_SWITCH8", "R_SH_GNU_VTINHERIT","R_SH_GNU_VTENTRY",
+[160] "R_SH_GOT32", "R_SH_PLT32", "R_SH_COPY", "R_SH_GLOB_DAT",
+[164] "R_SH_JMP_SLOT","R_SH_RELATIVE","R_SH_GOTOFF", "R_SH_GOTPC",
+};
+
+static const char *
+_dl_reltypes(int type)
+{
+ static char buf[22];
+ const char *str;
+
+ if (type >= (sizeof (_dl_reltypes_tab)/sizeof(_dl_reltypes_tab[0])) ||
+ NULL == (str = _dl_reltypes_tab[type]))
+ {
+ str =_dl_simple_ltoa( buf, (unsigned long)(type));
+ }
+ return str;
+}
+
+static
+void debug_sym(Elf32_Sym *symtab,char *strtab,int symtab_index)
+{
+ if(_dl_debug_symbols)
+ {
+ if(symtab_index){
+ _dl_dprintf(_dl_debug_file, "\n%s\tvalue=%x\tsize=%x\tinfo=%x\tother=%x\tshndx=%x",
+ strtab + symtab[symtab_index].st_name,
+ symtab[symtab_index].st_value,
+ symtab[symtab_index].st_size,
+ symtab[symtab_index].st_info,
+ symtab[symtab_index].st_other,
+ symtab[symtab_index].st_shndx);
+ }
+ }
+}
+
+static void debug_reloc(Elf32_Sym *symtab,char *strtab, ELF_RELOC *rpnt)
+{
+ if(_dl_debug_reloc)
+ {
+ int symtab_index;
+ const char *sym;
+ symtab_index = ELF32_R_SYM(rpnt->r_info);
+ sym = symtab_index ? strtab + symtab[symtab_index].st_name : "sym=0x0";
+
+#ifdef ELF_USES_RELOCA
+ _dl_dprintf(_dl_debug_file, "\n%s\toffset=%x\taddend=%x %s",
+ _dl_reltypes(ELF32_R_TYPE(rpnt->r_info)),
+ rpnt->r_offset,
+ rpnt->r_addend,
+ sym);
+#else
+ _dl_dprintf(_dl_debug_file, "\n%s\toffset=%x %s",
+ _dl_reltypes(ELF32_R_TYPE(rpnt->r_info)),
+ rpnt->r_offset,
+ sym);
+#endif
+ }
+}
+#endif
+
+/* Program to load an ELF binary on a linux system, and run it.
+ References to symbols in sharable libraries can be resolved by either
+ an ELF sharable library or a linux style of shared library. */
+
+/* Disclaimer: I have never seen any AT&T source code for SVr4, nor have
+ I ever taken any courses on internals. This program was developed using
+ information available through the book "UNIX SYSTEM V RELEASE 4,
+ Programmers guide: Ansi C and Programming Support Tools", which did
+ a more than adequate job of explaining everything required to get this
+ working. */
+
+extern int _dl_linux_resolve(void);
+
+unsigned long _dl_linux_resolver(struct elf_resolve *tpnt, int reloc_entry)
+{
+ int reloc_type;
+ ELF_RELOC *this_reloc;
+ char *strtab;
+ Elf32_Sym *symtab;
+ int symtab_index;
+ char *rel_addr;
+ char *new_addr;
+ char **got_addr;
+ unsigned long instr_addr;
+
+ rel_addr = (char *) (tpnt->dynamic_info[DT_JMPREL] + tpnt->loadaddr);
+
+ this_reloc = (ELF_RELOC *) (rel_addr + reloc_entry);
+ reloc_type = ELF32_R_TYPE(this_reloc->r_info);
+ symtab_index = ELF32_R_SYM(this_reloc->r_info);
+
+ symtab = (Elf32_Sym *) (tpnt->dynamic_info[DT_SYMTAB] + tpnt->loadaddr);
+ strtab = (char *) (tpnt->dynamic_info[DT_STRTAB] + tpnt->loadaddr);
+
+ if (reloc_type != R_SH_JMP_SLOT) {
+ _dl_dprintf(2, "%s: Incorrect relocation type in jump relocations\n",
+ _dl_progname);
+ _dl_exit(1);
+ }
+
+ /* Address of jump instruction to fix up */
+ instr_addr = ((unsigned long) this_reloc->r_offset +
+ (unsigned long) tpnt->loadaddr);
+ got_addr = (char **) instr_addr;
+
+
+ /* Get the address of the GOT entry */
+ new_addr = _dl_find_hash(strtab + symtab[symtab_index].st_name,
+ tpnt->symbol_scope, tpnt, resolver);
+ if (!new_addr) {
+ _dl_dprintf(2, "%s: can't resolve symbol '%s'\n",
+ _dl_progname, strtab + symtab[symtab_index].st_name);
+ _dl_exit(1);
+ }
+
+#if defined (SUPPORT_LD_DEBUG) || defined (LD_NEVER_FIXUP_SYMBOLS)
+ if ((unsigned long) got_addr < 0x20000000)
+ {
+#ifndef SUPPORT_LD_DEBUG
+ if (_dl_debug_bindings)
+ {
+ _dl_dprintf(_dl_debug_file, "\nresolve function: %s",
+ strtab + symtab[symtab_index].st_name);
+ if(_dl_debug_detail) _dl_dprintf(_dl_debug_file, "\tpatch %x ==> %x @ %x", *got_addr, new_addr, got_addr);
+ }
+#endif
+#ifndef LD_NEVER_FIXUP_SYMBOLS
+ *got_addr = new_addr;
+#endif
+ } else {
+ *got_addr = new_addr;
+ }
+#else
+ *got_addr = new_addr;
+#endif
+
+ return (unsigned long) new_addr;
+}
+
+
+static int
+_dl_parse(struct elf_resolve *tpnt, struct dyn_elf *scope,
+ unsigned long rel_addr, unsigned long rel_size,
+ int (*reloc_fnc) (struct elf_resolve *tpnt, struct dyn_elf *scope,
+ ELF_RELOC *rpnt, Elf32_Sym *symtab, char *strtab))
+{
+ int i;
+ char *strtab;
+ int goof = 0;
+ Elf32_Sym *symtab;
+ ELF_RELOC *rpnt;
+ int symtab_index;
+ /* Now parse the relocation information */
+
+ rpnt = (ELF_RELOC *) (rel_addr + tpnt->loadaddr);
+ rel_size = rel_size / sizeof(ELF_RELOC);
+
+ symtab = (Elf32_Sym *) (tpnt->dynamic_info[DT_SYMTAB] + tpnt->loadaddr);
+ strtab = (char *) (tpnt->dynamic_info[DT_STRTAB] + tpnt->loadaddr);
+
+ for (i = 0; i < rel_size; i++, rpnt++) {
+ int res;
+
+ symtab_index = ELF32_R_SYM(rpnt->r_info);
+
+ /* When the dynamic linker bootstrapped itself, it resolved some symbols.
+ Make sure we do not do them again */
+ if (!symtab_index && tpnt->libtype == program_interpreter)
+ continue;
+ if (symtab_index && tpnt->libtype == program_interpreter &&
+ _dl_symbol(strtab + symtab[symtab_index].st_name))
+ continue;
+
+#if defined (SUPPORT_LD_DEBUG)
+ debug_sym(symtab,strtab,symtab_index);
+ debug_reloc(symtab,strtab,rpnt);
+#endif
+
+ res = reloc_fnc (tpnt, scope, rpnt, symtab, strtab);
+
+ if (res==0) continue;
+
+ _dl_dprintf(2, "\n%s: ",_dl_progname);
+
+ if (symtab_index)
+ _dl_dprintf(2, "symbol '%s': ", strtab + symtab[symtab_index].st_name);
+
+ if (res <0)
+ {
+ int reloc_type = ELF32_R_TYPE(rpnt->r_info);
+#if defined (SUPPORT_LD_DEBUG)
+ _dl_dprintf(2, "can't handle reloc type %s\n ", _dl_reltypes(reloc_type));
+#else
+ _dl_dprintf(2, "can't handle reloc type %x\n", reloc_type);
+#endif
+ _dl_exit(-res);
+ }
+ else if (res >0)
+ {
+ _dl_dprintf(2, "can't resolve symbol '%s'\n");
+ goof += res;
+ }
+ }
+ return goof;
+}
+
+
+static int
+_dl_do_reloc (struct elf_resolve *tpnt,struct dyn_elf *scope,
+ ELF_RELOC *rpnt, Elf32_Sym *symtab, char *strtab)
+{
+ int reloc_type;
+ int symtab_index;
+ unsigned long *reloc_addr;
+ unsigned long symbol_addr;
+ int goof = 0;
+
+ reloc_addr = (unsigned long *) (tpnt->loadaddr + (unsigned long) rpnt->r_offset);
+ reloc_type = ELF32_R_TYPE(rpnt->r_info);
+ symtab_index = ELF32_R_SYM(rpnt->r_info);
+ symbol_addr = 0;
+
+ if (symtab_index) {
+
+
+ symbol_addr = (unsigned long) _dl_find_hash(strtab + symtab[symtab_index].st_name,
+ scope,
+ (reloc_type == R_SH_JMP_SLOT ? tpnt : NULL), symbolrel);
+
+ /*
+ * We want to allow undefined references to weak symbols - this might
+ * have been intentional. We should not be linking local symbols
+ * here, so all bases should be covered.
+ */
+ if (!symbol_addr && ELF32_ST_BIND(symtab[symtab_index].st_info) == STB_GLOBAL) {
+ goof++;
+ }
+ }
+
+
+#if defined (SUPPORT_LD_DEBUG)
+ {
+ unsigned long old_val = *reloc_addr;
+#endif
+ switch (reloc_type) {
+ case R_SH_NONE:
+ break;
+ case R_SH_COPY:
+ /* handled later on */
+ break;
+ case R_SH_DIR32:
+ *reloc_addr += symbol_addr + rpnt->r_addend;
+ break;
+ case R_SH_JMP_SLOT:
+ *reloc_addr = symbol_addr + rpnt->r_addend;
+ break;
+ case R_SH_REL32:
+ *reloc_addr += rpnt->r_addend -
+ (unsigned long) tpnt->loadaddr;
+ break;
+ case R_SH_RELATIVE:
+ *reloc_addr += (unsigned long) tpnt->loadaddr;
+ break;
+ default:
+ return -1; /*call _dl_exit(1) */
+ }
+#if defined (SUPPORT_LD_DEBUG)
+ if(_dl_debug_reloc && _dl_debug_detail)
+ _dl_dprintf(_dl_debug_file, "\tpatch: %x ==> %x @ %x", old_val, *reloc_addr, reloc_addr);
+ }
+
+#endif
+
+ return goof;
+}
+
+
+static int
+_dl_do_lazy_reloc (struct elf_resolve *tpnt, struct dyn_elf *scope,
+ ELF_RELOC *rpnt, Elf32_Sym *symtab, char *strtab)
+{
+ int reloc_type;
+ unsigned long *reloc_addr;
+
+ reloc_addr = (unsigned long *) (tpnt->loadaddr + (unsigned long) rpnt->r_offset);
+ reloc_type = ELF32_R_TYPE(rpnt->r_info);
+
+#if defined (SUPPORT_LD_DEBUG)
+ {
+ unsigned long old_val = *reloc_addr;
+#endif
+ switch (reloc_type) {
+ case R_SH_NONE:
+ break;
+ case R_SH_JMP_SLOT:
+ *reloc_addr += (unsigned long) tpnt->loadaddr;
+ break;
+ default:
+ return -1; /*call _dl_exit(1) */
+ }
+#if defined (SUPPORT_LD_DEBUG)
+ if(_dl_debug_reloc && _dl_debug_detail)
+ _dl_dprintf(_dl_debug_file, "\tpatch: %x ==> %x @ %x", old_val, *reloc_addr, reloc_addr);
+ }
+
+#endif
+ return 0;
+
+}
+
+/* This is done as a separate step, because there are cases where
+ information is first copied and later initialized. This results in
+ the wrong information being copied. Someone at Sun was complaining about
+ a bug in the handling of _COPY by SVr4, and this may in fact be what he
+ was talking about. Sigh. */
+
+/* No, there are cases where the SVr4 linker fails to emit COPY relocs
+ at all */
+static int
+_dl_do_copy (struct elf_resolve *tpnt, struct dyn_elf *scope,
+ ELF_RELOC *rpnt, Elf32_Sym *symtab, char *strtab)
+{
+ int reloc_type;
+ int symtab_index;
+ unsigned long *reloc_addr;
+ unsigned long symbol_addr;
+ int goof = 0;
+
+ reloc_addr = (unsigned long *) (tpnt->loadaddr + (unsigned long) rpnt->r_offset);
+ reloc_type = ELF32_R_TYPE(rpnt->r_info);
+ if (reloc_type != R_SH_COPY)
+ return 0;
+ symtab_index = ELF32_R_SYM(rpnt->r_info);
+ symbol_addr = 0;
+
+ if (symtab_index) {
+
+ symbol_addr = (unsigned long) _dl_find_hash(strtab +
+ symtab[symtab_index].st_name, scope,
+ NULL, copyrel);
+ if (!symbol_addr) goof++;
+ }
+ if (!goof) {
+#if defined (SUPPORT_LD_DEBUG)
+ if(_dl_debug_move)
+ _dl_dprintf(_dl_debug_file,"\n%s move %x bytes from %x to %x",
+ strtab + symtab[symtab_index].st_name,
+ symtab[symtab_index].st_size,
+ symbol_addr, symtab[symtab_index].st_value);
+#endif
+ _dl_memcpy((char *) symtab[symtab_index].st_value,
+ (char *) symbol_addr, symtab[symtab_index].st_size);
+ }
+
+ return goof;
+}
+
+
+void _dl_parse_lazy_relocation_information(struct elf_resolve *tpnt,
+ unsigned long rel_addr, unsigned long rel_size, int type)
+{
+ (void)_dl_parse(tpnt, NULL, rel_addr, rel_size, _dl_do_lazy_reloc);
+}
+
+int _dl_parse_relocation_information(struct elf_resolve *tpnt,
+ unsigned long rel_addr, unsigned long rel_size, int type)
+{
+ return _dl_parse(tpnt, tpnt->symbol_scope, rel_addr, rel_size, _dl_do_reloc);
+}
+
+int _dl_parse_copy_information(struct dyn_elf *xpnt, unsigned long rel_addr,
+ unsigned long rel_size, int type)
+{
+ return _dl_parse(xpnt->dyn, xpnt->next, rel_addr, rel_size, _dl_do_copy);
+}
+
+
diff --git a/ldso/ldso/sh/ld_syscalls.h b/ldso/ldso/sh/ld_syscalls.h
new file mode 100644
index 000000000..793dc9110
--- /dev/null
+++ b/ldso/ldso/sh/ld_syscalls.h
@@ -0,0 +1,7 @@
+/* Define the __set_errno macro as nothing so that we don't bother
+ * setting errno, which is important since we make system calls
+ * before the errno symbol is dynamicly linked. */
+
+#define __set_errno(X)
+#include "sys/syscall.h"
+
diff --git a/ldso/ldso/sh/ld_sysdep.h b/ldso/ldso/sh/ld_sysdep.h
new file mode 100644
index 000000000..dc1b895b9
--- /dev/null
+++ b/ldso/ldso/sh/ld_sysdep.h
@@ -0,0 +1,145 @@
+/*
+ * Various assmbly language/system dependent hacks that are required
+ * so that we can minimize the amount of platform specific code.
+ */
+
+/*
+ * Define this if the system uses RELOCA.
+ */
+#define ELF_USES_RELOCA
+
+/*
+ * Get a pointer to the argv array. On many platforms this can be just
+ * the address if the first argument, on other platforms we need to
+ * do something a little more subtle here.
+ */
+#define GET_ARGV(ARGVP, ARGS) ARGVP = ((unsigned long*) ARGS)
+
+/*
+ * Initialization sequence for a GOT.
+ */
+#define INIT_GOT(GOT_BASE,MODULE) \
+{ \
+ GOT_BASE[2] = (unsigned long) _dl_linux_resolve; \
+ GOT_BASE[1] = (unsigned long) (MODULE); \
+}
+
+/*
+ * Here is a macro to perform a relocation. This is only used when
+ * bootstrapping the dynamic loader. RELP is the relocation that we
+ * are performing, REL is the pointer to the address we are relocating.
+ * SYMBOL is the symbol involved in the relocation, and LOAD is the
+ * load address.
+ */
+#define PERFORM_BOOTSTRAP_RELOC(RELP,REL,SYMBOL,LOAD) \
+ switch(ELF32_R_TYPE((RELP)->r_info)){ \
+ case R_SH_REL32: \
+ *(REL) += (RELP)->r_addend - (LOAD); \
+ break; \
+ case R_SH_DIR32: \
+ *(REL) += (SYMBOL) + (RELP)->r_addend; \
+ break; \
+ case R_SH_RELATIVE: \
+ *(REL) += (LOAD); \
+ break; \
+ case R_SH_NONE: \
+ break; \
+ default: \
+ SEND_STDERR("BOOTSTRAP_RELOC: unhandled reloc type "); \
+ SEND_NUMBER_STDERR(ELF32_R_TYPE((RELP)->r_info), 1); \
+ SEND_STDERR("REL, SYMBOL, LOAD: "); \
+ SEND_ADDRESS_STDERR(REL, 0); \
+ SEND_STDERR(", "); \
+ SEND_ADDRESS_STDERR(SYMBOL, 0); \
+ SEND_STDERR(", "); \
+ SEND_ADDRESS_STDERR(LOAD, 1); \
+ _dl_exit(1); \
+ }
+
+
+/*
+ * Transfer control to the user's application, once the dynamic loader
+ * is done. This routine has to exit the current function, then
+ * call the _dl_elf_main function.
+ */
+
+#define START() return _dl_elf_main;
+
+
+
+/* Here we define the magic numbers that this dynamic loader should accept */
+
+#define MAGIC1 EM_SH
+#undef MAGIC2
+/* Used for error messages */
+#define ELF_TARGET "sh"
+
+struct elf_resolve;
+extern unsigned long _dl_linux_resolver(struct elf_resolve * tpnt, int reloc_entry);
+
+static __inline__ unsigned int
+_dl_urem(unsigned int n, unsigned int base)
+{
+register unsigned int __r0 __asm__ ("r0");
+register unsigned int __r4 __asm__ ("r4") = n;
+register unsigned int __r5 __asm__ ("r5") = base;
+
+ __asm__ ("
+ mov #0, r0
+ div0u
+
+ ! get one bit from the msb of the numerator into the T
+ ! bit and divide it by whats in %2. Put the answer bit
+ ! into the T bit so it can come out again at the bottom
+
+ rotcl r4 ; div1 r5, r0
+ rotcl r4 ; div1 r5, r0
+ rotcl r4 ; div1 r5, r0
+ rotcl r4 ; div1 r5, r0
+ rotcl r4 ; div1 r5, r0
+ rotcl r4 ; div1 r5, r0
+ rotcl r4 ; div1 r5, r0
+ rotcl r4 ; div1 r5, r0
+
+ rotcl r4 ; div1 r5, r0
+ rotcl r4 ; div1 r5, r0
+ rotcl r4 ; div1 r5, r0
+ rotcl r4 ; div1 r5, r0
+ rotcl r4 ; div1 r5, r0
+ rotcl r4 ; div1 r5, r0
+ rotcl r4 ; div1 r5, r0
+ rotcl r4 ; div1 r5, r0
+
+ rotcl r4 ; div1 r5, r0
+ rotcl r4 ; div1 r5, r0
+ rotcl r4 ; div1 r5, r0
+ rotcl r4 ; div1 r5, r0
+ rotcl r4 ; div1 r5, r0
+ rotcl r4 ; div1 r5, r0
+ rotcl r4 ; div1 r5, r0
+ rotcl r4 ; div1 r5, r0
+
+ rotcl r4 ; div1 r5, r0
+ rotcl r4 ; div1 r5, r0
+ rotcl r4 ; div1 r5, r0
+ rotcl r4 ; div1 r5, r0
+ rotcl r4 ; div1 r5, r0
+ rotcl r4 ; div1 r5, r0
+ rotcl r4 ; div1 r5, r0
+ rotcl r4 ; div1 r5, r0
+ rotcl r4
+ mov r4, r0
+"
+ : "=r" (__r0)
+ : "r" (__r4), "r" (__r5)
+ : "r4", "cc");
+
+ return n - (base * __r0);
+}
+
+#define do_rem(result, n, base) ((result) = _dl_urem((n), (base)))
+
+/* 4096 bytes alignment */
+#define PAGE_ALIGN 0xfffff000
+#define ADDR_ALIGN 0xfff
+#define OFFS_ALIGN 0x7ffff000
diff --git a/ldso/ldso/sh/resolve.S b/ldso/ldso/sh/resolve.S
new file mode 100644
index 000000000..4d8eee6c2
--- /dev/null
+++ b/ldso/ldso/sh/resolve.S
@@ -0,0 +1,69 @@
+/*
+ * Stolen from glibc-2.2.2 by Eddie C. Dost <ecd@atecom.com>
+ */
+
+ .text
+ .globl _dl_linux_resolve
+ .type _dl_linux_resolve, @function
+ .balign 16
+_dl_linux_resolve:
+ mov.l r3, @-r15
+ mov.l r4, @-r15
+ mov.l r5, @-r15
+ mov.l r6, @-r15
+ mov.l r7, @-r15
+ mov.l r12, @-r15
+ movt r3 ! Save T flag
+ mov.l r3, @-r15
+
+#ifdef HAVE_FPU
+ sts.l fpscr, @-r15
+ mov #8,r3
+ swap.w r3, r3
+ lds r3, fpscr
+ fmov.s fr11, @-r15
+ fmov.s fr10, @-r15
+ fmov.s fr9, @-r15
+ fmov.s fr8, @-r15
+ fmov.s fr7, @-r15
+ fmov.s fr6, @-r15
+ fmov.s fr5, @-r15
+ fmov.s fr4, @-r15
+#endif
+ sts.l pr, @-r15
+
+ mov r2, r4 ! link map address
+
+ mov.l 3f, r0
+ jsr @r0 ! Call resolver
+ mov r1, r5 ! Reloc offset
+
+ lds.l @r15+, pr ! Get register content back
+
+#ifdef HAVE_FPU
+ fmov.s @r15+, fr4
+ fmov.s @r15+, fr5
+ fmov.s @r15+, fr6
+ fmov.s @r15+, fr7
+ fmov.s @r15+, fr8
+ fmov.s @r15+, fr9
+ fmov.s @r15+, fr10
+ fmov.s @r15+, fr11
+ lds.l @r15+, fpscr
+#endif
+
+ mov.l @r15+, r3
+ shal r3 ! Load T flag
+ mov.l @r15+, r12
+ mov.l @r15+, r7
+ mov.l @r15+, r6
+ mov.l @r15+, r5
+ mov.l @r15+, r4
+ jmp @r0 ! Jump to function address
+ mov.l @r15+, r3
+
+ .balign 4
+3:
+ .long _dl_linux_resolver
+ .size _dl_linux_resolve, . - _dl_linux_resolve
+
generated by cgit v1.2.3 (git 2.25.1) at 2024-05-19 17:34:55 +0000