Added missing tegra files.HEADmaster

1 files changed, 682 insertions, 0 deletions

diff --git a/arch/x86/boot/compressed/relocs.c b/arch/x86/boot/compressed/relocs.c
new file mode 100644
index 00000000000..89bbf4e4d05
--- /dev/null
+++ b/arch/x86/boot/compressed/relocs.c
@@ -0,0 +1,682 @@
+#include <stdio.h>
+#include <stdarg.h>
+#include <stdlib.h>
+#include <stdint.h>
+#include <string.h>
+#include <errno.h>
+#include <unistd.h>
+#include <elf.h>
+#include <byteswap.h>
+#define USE_BSD
+#include <endian.h>
+#include <regex.h>
+
+static void die(char *fmt, ...);
+
+#define ARRAY_SIZE(x) (sizeof(x) / sizeof((x)[0]))
+static Elf32_Ehdr ehdr;
+static unsigned long reloc_count, reloc_idx;
+static unsigned long *relocs;
+
+struct section {
+        Elf32_Shdr     shdr;
+        struct section *link;
+        Elf32_Sym      *symtab;
+        Elf32_Rel      *reltab;
+        char           *strtab;
+};
+static struct section *secs;
+
+/*
+ * Following symbols have been audited. There values are constant and do
+ * not change if bzImage is loaded at a different physical address than
+ * the address for which it has been compiled. Don't warn user about
+ * absolute relocations present w.r.t these symbols.
+ */
+static const char abs_sym_regex[] =
+        "^(xen_irq_disable_direct_reloc$|"
+        "xen_save_fl_direct_reloc$|"
+        "VDSO|"
+        "__crc_)";
+static regex_t abs_sym_regex_c;
+static int is_abs_reloc(const char *sym_name)
+{
+        return !regexec(&abs_sym_regex_c, sym_name, 0, NULL, 0);
+}
+
+/*
+ * These symbols are known to be relative, even if the linker marks them
+ * as absolute (typically defined outside any section in the linker script.)
+ */
+static const char rel_sym_regex[] =
+        "^_end$";
+static regex_t rel_sym_regex_c;
+static int is_rel_reloc(const char *sym_name)
+{
+        return !regexec(&rel_sym_regex_c, sym_name, 0, NULL, 0);
+}
+
+static void regex_init(void)
+{
+        char errbuf[128];
+        int err;
+        
+        err = regcomp(&abs_sym_regex_c, abs_sym_regex,
+                      REG_EXTENDED|REG_NOSUB);
+        if (err) {
+                regerror(err, &abs_sym_regex_c, errbuf, sizeof errbuf);
+                die("%s", errbuf);
+        }
+
+        err = regcomp(&rel_sym_regex_c, rel_sym_regex,
+                      REG_EXTENDED|REG_NOSUB);
+        if (err) {
+                regerror(err, &rel_sym_regex_c, errbuf, sizeof errbuf);
+                die("%s", errbuf);
+        }
+}
+
+static void die(char *fmt, ...)
+{
+        va_list ap;
+        va_start(ap, fmt);
+        vfprintf(stderr, fmt, ap);
+        va_end(ap);
+        exit(1);
+}
+
+static const char *sym_type(unsigned type)
+{
+        static const char *type_name[] = {
+#define SYM_TYPE(X) [X] = #X
+                SYM_TYPE(STT_NOTYPE),
+                SYM_TYPE(STT_OBJECT),
+                SYM_TYPE(STT_FUNC),
+                SYM_TYPE(STT_SECTION),
+                SYM_TYPE(STT_FILE),
+                SYM_TYPE(STT_COMMON),
+                SYM_TYPE(STT_TLS),
+#undef SYM_TYPE
+        };
+        const char *name = "unknown sym type name";
+        if (type < ARRAY_SIZE(type_name)) {
+                name = type_name[type];
+        }
+        return name;
+}
+
+static const char *sym_bind(unsigned bind)
+{
+        static const char *bind_name[] = {
+#define SYM_BIND(X) [X] = #X
+                SYM_BIND(STB_LOCAL),
+                SYM_BIND(STB_GLOBAL),
+                SYM_BIND(STB_WEAK),
+#undef SYM_BIND
+        };
+        const char *name = "unknown sym bind name";
+        if (bind < ARRAY_SIZE(bind_name)) {
+                name = bind_name[bind];
+        }
+        return name;
+}
+
+static const char *sym_visibility(unsigned visibility)
+{
+        static const char *visibility_name[] = {
+#define SYM_VISIBILITY(X) [X] = #X
+                SYM_VISIBILITY(STV_DEFAULT),
+                SYM_VISIBILITY(STV_INTERNAL),
+                SYM_VISIBILITY(STV_HIDDEN),
+                SYM_VISIBILITY(STV_PROTECTED),
+#undef SYM_VISIBILITY
+        };
+        const char *name = "unknown sym visibility name";
+        if (visibility < ARRAY_SIZE(visibility_name)) {
+                name = visibility_name[visibility];
+        }
+        return name;
+}
+
+static const char *rel_type(unsigned type)
+{
+        static const char *type_name[] = {
+#define REL_TYPE(X) [X] = #X
+                REL_TYPE(R_386_NONE),
+                REL_TYPE(R_386_32),
+                REL_TYPE(R_386_PC32),
+                REL_TYPE(R_386_GOT32),
+                REL_TYPE(R_386_PLT32),
+                REL_TYPE(R_386_COPY),
+                REL_TYPE(R_386_GLOB_DAT),
+                REL_TYPE(R_386_JMP_SLOT),
+                REL_TYPE(R_386_RELATIVE),
+                REL_TYPE(R_386_GOTOFF),
+                REL_TYPE(R_386_GOTPC),
+#undef REL_TYPE
+        };
+        const char *name = "unknown type rel type name";
+        if (type < ARRAY_SIZE(type_name) && type_name[type]) {
+                name = type_name[type];
+        }
+        return name;
+}
+
+static const char *sec_name(unsigned shndx)
+{
+        const char *sec_strtab;
+        const char *name;
+        sec_strtab = secs[ehdr.e_shstrndx].strtab;
+        name = "<noname>";
+        if (shndx < ehdr.e_shnum) {
+                name = sec_strtab + secs[shndx].shdr.sh_name;
+        }
+        else if (shndx == SHN_ABS) {
+                name = "ABSOLUTE";
+        }
+        else if (shndx == SHN_COMMON) {
+                name = "COMMON";
+        }
+        return name;
+}
+
+static const char *sym_name(const char *sym_strtab, Elf32_Sym *sym)
+{
+        const char *name;
+        name = "<noname>";
+        if (sym->st_name) {
+                name = sym_strtab + sym->st_name;
+        }
+        else {
+                name = sec_name(secs[sym->st_shndx].shdr.sh_name);
+        }
+        return name;
+}
+
+
+
+#if BYTE_ORDER == LITTLE_ENDIAN
+#define le16_to_cpu(val) (val)
+#define le32_to_cpu(val) (val)
+#endif
+#if BYTE_ORDER == BIG_ENDIAN
+#define le16_to_cpu(val) bswap_16(val)
+#define le32_to_cpu(val) bswap_32(val)
+#endif
+
+static uint16_t elf16_to_cpu(uint16_t val)
+{
+        return le16_to_cpu(val);
+}
+
+static uint32_t elf32_to_cpu(uint32_t val)
+{
+        return le32_to_cpu(val);
+}