crt: Need a position-independent CRT for PIE
- Implement the greatest possible part of the crt1 in C
- Implement SPARC versions of the ASM sections of crt1
- Build crt1 position-independently, minor ASM updates to be position
  independent
- Implement crt1 with the hook expected by modern GCC to support
  profiling, make gcrt1 a symlink for source compatibility (older GCC
  initializes profiling at firsnt use of _mcount if necessary, so
  doesn't need the gcrt)
- Split the CRT out of developer/library/lint into a separate c-runtime package

@@ -54,20 +54,20 @@
  * not initially so aligned, it will never become so aligned.
  *
  * One slightly confusing detail to keep in mind is that the 16-byte
  * alignment (%esp & 0xf == 0) is true just *before* the call instruction.
  * The call instruction will then push a return value, decrementing %esp by
- * 4.  Therefore, if one dumps %esp at the at the very first instruction in
+ * 4.  Therefore, if one dumps %esp at the very first instruction in
  * a function, it will end with a 0xc.  The compiler expects this and
  * compensates for it properly.
  *
  * Note: If you change this value, you need to change it in the following
  * files as well:
  *
  *  - lib/libc/i386/threads/machdep.c
- *  - lib/common/i386/crti.s
- *  - lib/common/i386/crt1.s
+ *  - lib/crt/i86/crti.s
+ *  - lib/crt/i86/crt1.s
  */
 #undef  STACK_ALIGN
 #define STACK_ALIGN     16
 
 static void resumecontext(void);