Simplify start_of_data, start_of_text and related code.

* src/mem-limits.h: Remove !emacs and _LIBC conditional code.
(start_of_data): Merge into start_of_data function.
* src/sysdep.c (start_of_text): Remove.  Move simplified versions of
it in the only users: src/unexaix.c and unexec.c.
(read_input_waiting): Remove local declaration of quit_char.
(start, etext): Remove declarations.
(start_of_data): Merge with the version in mem-limits.h and move
to vm-limits.c.
* src/vm-limit.c (start_of_data): Merged and simplified version of the
code formerly in mem-limits.h and sysdep.c.
* src/unexec.c (start): New declaration, moved from sysdep.c.
(start_of_text): Simplified version of the code formerly in sysdep.c.
* unexaix.c (start_of_text): Simplified version of the code
formerly in sysdep.c.
* src/m/alpha.h (HAVE_TEXT_START): Remove.
(TEXT_START): Move ...
* src/unexalpha.c (TEXT_START): ... here.
* src/s/hpux10-20.h (TEXT_START): Remove.
* src/s/darwin.h (TEXT_START):
* src/m/mips.h (TEXT_START):
* src/m/macppc.h (HAVE_TEXT_START):
* src/m/m68k.h (TEXT_START):
* src/m/iris4d.h (TEXT_START):
* src/m/intel386.h (TEXT_START):
* src/m/ibmrs6000.h (TEXT_START):
* src/m/ia64.h (HAVE_TEXT_START):
* src/s/msdos.h (TEXT_START): Likewise.

8 files changed, 0 insertions, 22 deletions

diff --git a/src/m/alpha.h b/src/m/alpha.h
index a7e4fa6b07b..ae8fd62d6f8 100644
--- a/src/m/alpha.h
+++ b/src/m/alpha.h
@@ -53,14 +53,9 @@ along with GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.  */
 #define DATA_START    0x140000000
 #endif
 
-#if (defined (__NetBSD__) || defined (__OpenBSD__))
-#define HAVE_TEXT_START
-#endif
-
 #else  /* not __ELF__ */
 
 /* Describe layout of the address space in an executing process.  */
-#define TEXT_START    0x120000000
 #define DATA_START    0x140000000
 
 #endif /* __ELF__ */
diff --git a/src/m/ia64.h b/src/m/ia64.h
index 76e2bb87d80..5266c682c78 100644
--- a/src/m/ia64.h
+++ b/src/m/ia64.h
@@ -58,7 +58,5 @@ extern void r_alloc_free ();
 #endif /* not _MALLOC_INTERNAL */
 #endif /* REL_ALLOC */
 
-#define HAVE_TEXT_START
-
 /* arch-tag: 9b8e9fb2-2e49-4c22-b68f-11a488e77c66
    (do not change this comment) */
diff --git a/src/m/ibmrs6000.h b/src/m/ibmrs6000.h
index 3831e500641..a44b2c4ec3b 100644
--- a/src/m/ibmrs6000.h
+++ b/src/m/ibmrs6000.h
@@ -22,7 +22,6 @@ along with GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.  */
 /* The data segment in this machine always starts at address 0x20000000.
    An address of data cannot be stored correctly in a Lisp object;
    we always lose the high bits.  We must tell XPNTR to add them back.  */
-#define TEXT_START 0x10000000
 #define DATA_START 0x20000000
 #define WORDS_BIG_ENDIAN
 #define DATA_SEG_BITS 0x20000000
diff --git a/src/m/intel386.h b/src/m/intel386.h
index 984a9959736..76e5929e4e6 100644
--- a/src/m/intel386.h
+++ b/src/m/intel386.h
@@ -23,10 +23,6 @@ along with GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.  */
    is the most significant byte.  */
 #undef WORDS_BIG_ENDIAN
 
-#ifdef USG
-#define TEXT_START 0
-#endif /* USG */
-
 #ifdef WINDOWSNT
 #define VIRT_ADDR_VARIES
 #define DATA_START      get_data_start ()
diff --git a/src/m/iris4d.h b/src/m/iris4d.h
index e7f332057e5..2ba6b5ba7ce 100644
--- a/src/m/iris4d.h
+++ b/src/m/iris4d.h
@@ -30,8 +30,6 @@ along with GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.  */
    This flag only matters if you use USE_LISP_UNION_TYPE.  */
 #define EXPLICIT_SIGN_EXTEND
 
-#define TEXT_START 0x400000
-
 /* DATA_SEG_BITS forces extra bits to be or'd in with any pointers which
    were stored in a Lisp_Object (as Emacs uses fewer than 32 bits for
    the value field of a LISP_OBJECT).  */
diff --git a/src/m/m68k.h b/src/m/m68k.h
index 668db282593..5a083205e50 100644
--- a/src/m/m68k.h
+++ b/src/m/m68k.h
@@ -41,7 +41,6 @@ along with GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.  */
 #endif
 
 #define NO_REMAP
-#define TEXT_START 0
 #endif
 
 /* arch-tag: 4eadd161-b4e8-4b82-82a1-e4ce7f42969d
diff --git a/src/m/macppc.h b/src/m/macppc.h
index f348286030c..2764ae56115 100644
--- a/src/m/macppc.h
+++ b/src/m/macppc.h
@@ -28,10 +28,6 @@ along with GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.  */
 /* Convert that into an integer that is 100 for a load average of 1.0  */
 #define LOAD_AVE_CVT(x) (int) (((double) (x)) * 100.0 / FSCALE)
 
-#if (defined (__NetBSD__) || defined (__OpenBSD__)) && defined (__ELF__)
-#define HAVE_TEXT_START
-#endif
-
 #ifdef _ARCH_PPC64
 #ifndef _LP64
 #define _LP64
diff --git a/src/m/mips.h b/src/m/mips.h
index 8e81c077426..39a948c0cde 100644
--- a/src/m/mips.h
+++ b/src/m/mips.h
@@ -31,8 +31,5 @@ along with GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.  */
    This flag only matters if you use USE_LISP_UNION_TYPE.  */
 #define EXPLICIT_SIGN_EXTEND
 
-/* Describe layout of the address space in an executing process.  */
-#define TEXT_START      0x00400000
-
 /* arch-tag: 8fd020ee-78a7-4d87-96ce-6129f52f7bee
    (do not change this comment) */