Initial checkin for ld.so. This is a combination of effort from Manuel Novoa

III and me.  I've been working on stripping out arch dependant stuff and
replacing it with generic stuff whenever possible.
 -Erik

1 files changed, 59 insertions, 0 deletions

diff --git a/ldso/config.h b/ldso/config.h
new file mode 100644
index 000000000..1d1429dc1
--- /dev/null
+++ b/ldso/config.h
@@ -0,0 +1,59 @@
+#ifdef DEBUG
+#  define LDSO_IMAGE "../ld-so/ld.so"
+#  define LDSO_CONF  "../util/ld.so.conf"
+#  define LDSO_CACHE "../util/ld.so.cache"
+#  define LDSO_PRELOAD "../util/ld.so.preload"
+#  define LDDSTUB    "../util/lddstub"
+#elif UCLIBC_DEVEL
+#  define LDSO_IMAGE UCLIBC_INSTALL_DIR"/lib/ld.so"
+#  define LDSO_CONF  UCLIBC_INSTALL_DIR"/etc/ld.so.conf"
+#  define LDSO_CACHE UCLIBC_INSTALL_DIR"/etc/ld.so.cache"
+#  define LDSO_PRELOAD UCLIBC_INSTALL_DIR"/etc/ld.so.preload"
+#  define LDDSTUB    UCLIBC_INSTALL_DIR"/lib/lddstub"
+#else
+#  define LDSO_IMAGE "/lib/ld.so"
+#  define LDSO_CONF  "/etc/ld.so.conf"
+#  define LDSO_CACHE "/etc/ld.so.cache"
+#  define LDSO_PRELOAD "/etc/ld.so.preload"
+#  define LDDSTUB    "/usr/lib/lddstub"
+#endif
+
+#define LDD_ARGV0    "__LDD_ARGV0"
+#define DIR_SEP      ":, \t\n"
+#define MAX_DIRS     32
+
+typedef void (*loadptr)(int func, ...);
+typedef void (*callbackptr)(int ver, int nlibs, char **libs, 
+		int nmods, char **mods);
+
+#define CALLBACK_VER 1
+
+#define LIB_ANY	     -1
+#define LIB_DLL       0
+#define LIB_ELF       1
+#define LIB_ELF_LIBC5 2
+#define LIB_ELF_LIBC6 3
+#define LIB_ELF64     0x80
+
+#define FUNC_VERS    0
+#define FUNC_LDD     1
+#define FUNC_LINK    2
+#define FUNC_LINK_AND_CALLBACK 3
+
+#define LDSO_CACHE_MAGIC "ld.so-"
+#define LDSO_CACHE_MAGIC_LEN (sizeof LDSO_CACHE_MAGIC -1)
+#define LDSO_CACHE_VER "1.7.0"
+#define LDSO_CACHE_VER_LEN (sizeof LDSO_CACHE_VER -1)
+
+typedef struct {
+	char magic   [LDSO_CACHE_MAGIC_LEN];
+	char version [LDSO_CACHE_VER_LEN];
+	int nlibs;
+} header_t;
+
+typedef struct {
+	int flags;
+	int sooffset;
+	int liboffset;
+} libentry_t;
+