Mon Jun 16 19:12:51 1997 Geoff Keating <geoffk@ozemail.com.au>

	* config/tc-ppc.h (tc_fix_adjustable): Don't let the assembler
	calculate relocations to any external symbol, because we might be
	linking a shared object and the symbol might be overriden or moved
	(for instance, moved into a static executable's .bss section).
	(GLOBAL_OFFSET_TABLE_NAME): Delete. This is an i386 wierdness.

	* config/tc-ppc.h (tc_fix_adjustable): GOT-based relocations can't
	be calculated by the assembler.

	* config/tc-ppc.c (md_apply_fix3): Handle @plt or @local branch
	whose destination lies in the same file, by ignoring the @plt or
	@local and aiming the branch at its destination.

diff --git a/gas/ChangeLog b/gas/ChangeLog
index 135cb32b8acdb1a55635c2e78257c07fc3228f50..08bab539bb588194b1c8b0c987eca6fedcf0f2bf 100644 (file)
--- a/gas/ChangeLog
+++ b/gas/ChangeLog
@@ -1,3 +1,18 @@
+Mon Jun 16 19:12:51 1997  Geoff Keating  <geoffk@ozemail.com.au>
+
+       * config/tc-ppc.h (tc_fix_adjustable): Don't let the assembler
+       calculate relocations to any external symbol, because we might be
+       linking a shared object and the symbol might be overriden or moved
+       (for instance, moved into a static executable's .bss section).
+       (GLOBAL_OFFSET_TABLE_NAME): Delete. This is an i386 wierdness.
+
+       * config/tc-ppc.h (tc_fix_adjustable): GOT-based relocations can't
+       be calculated by the assembler.
+
+       * config/tc-ppc.c (md_apply_fix3): Handle @plt or @local branch
+       whose destination lies in the same file, by ignoring the @plt or
+       @local and aiming the branch at its destination.
+
 Mon Jun 16 13:59:18 1997  H.J. Lu  <hjl@gnu.ai.mit.edu>
 
        * symbols.c (copy_symbol_attributes): Copy BSF_OBJECT flag.

diff --git a/gas/config/tc-ppc.h b/gas/config/tc-ppc.h
index d12a8737e2a2ef2ea38033d4a8accf069eae90d0..e8797a7adc301aad959a704f43166075465d5641 100644 (file)
--- a/gas/config/tc-ppc.h
+++ b/gas/config/tc-ppc.h
@@ -1,5 +1,5 @@
 /* tc-ppc.h -- Header file for tc-ppc.c.
-   Copyright (C) 1994, 1995, 1996 Free Software Foundation, Inc.
+   Copyright (C) 1994, 1995, 1996, 1997 Free Software Foundation, Inc.
    Written by Ian Lance Taylor, Cygnus Support.
 
    This file is part of GAS, the GNU Assembler.
@@ -21,6 +21,15 @@
 
 #define TC_PPC
 
+#ifdef ANSI_PROTOTYPES
+struct fix;
+#endif
+
+/* Set the endianness we are using.  Default to big endian.  */
+#ifndef TARGET_BYTES_BIG_ENDIAN
+#define TARGET_BYTES_BIG_ENDIAN 1
+#endif
+
 #ifndef BFD_ASSEMBLER
  #error PowerPC support requires BFD_ASSEMBLER
 #endif
@@ -74,24 +83,10 @@ extern int target_big_endian;
 #define NO_STRING_ESCAPES
 #endif
 
-/* When using COFF, we determine whether or not to output a symbol
-   based on sy_tc.output, not on the name.  */
-#ifdef OBJ_XCOFF
-#define LOCAL_LABEL(name) 0
-#endif
 #ifdef OBJ_ELF
-/* When using ELF, local labels start with '.'.  */
-#define LOCAL_LABEL(name) (name[0] == '.' \
-                          && (name[1] == 'L' || name[1] == '.'))
-#define FAKE_LABEL_NAME ".L0\001"
 #define DIFF_EXPR_OK           /* .-foo gets turned into PC relative relocs */
 #endif
 
-/* Set the endianness we are using.  Default to big endian.  */
-#ifndef TARGET_BYTES_BIG_ENDIAN
-#define TARGET_BYTES_BIG_ENDIAN 1
-#endif
-
 #if TARGET_BYTES_BIG_ENDIAN
 #define PPC_BIG_ENDIAN 1
 #else
@@ -195,12 +190,6 @@ extern void ppc_adjust_symtab PARAMS ((void));
 #endif /* OBJ_XCOFF */
 
 #ifdef OBJ_ELF
-/* The name of the global offset table generated by the compiler. Allow
-   this to be overridden if need be. */
-#ifndef GLOBAL_OFFSET_TABLE_NAME
-#define GLOBAL_OFFSET_TABLE_NAME "_GLOBAL_OFFSET_TABLE_"
-#endif
-
 /* Branch prediction relocations must force relocation */
 #define TC_FORCE_RELOCATION_SECTION(FIXP,SEC)                          \
 ((FIXP)->fx_r_type == BFD_RELOC_PPC_B16_BRTAKEN                                \
@@ -236,6 +225,20 @@ extern int ppc_section_flags PARAMS ((int, int, int));
 #define tc_comment_chars ppc_comment_chars
 extern const char *ppc_comment_chars;
 
+/* Keep relocations relative to the GOT, or non-PC relative. */
+#define tc_fix_adjustable(FIX)                          \
+  ((FIX)->fx_r_type != BFD_RELOC_16_GOTOFF &&           \
+   (FIX)->fx_r_type != BFD_RELOC_LO16_GOTOFF &&         \
+   (FIX)->fx_r_type != BFD_RELOC_HI16_GOTOFF &&         \
+   (FIX)->fx_r_type != BFD_RELOC_HI16_S_GOTOFF &&       \
+   (FIX)->fx_r_type != BFD_RELOC_GPREL16 &&             \
+   ! S_IS_EXTERNAL ((FIX)->fx_addsy)                   \
+   && ! S_IS_WEAK ((FIX)->fx_addsy)                    \
+   && ((FIX)->fx_pcrel                                 \
+       || ((FIX)->fx_subsy != NULL                     \
+          && (S_GET_SEGMENT ((FIX)->fx_subsy)          \
+              == S_GET_SEGMENT ((FIX)->fx_addsy)))))
+
 #endif /* OBJ_ELF */
 
 /* call md_apply_fix3 with segment instead of md_apply_fix */
@@ -243,6 +246,7 @@ extern const char *ppc_comment_chars;
 
 /* call md_pcrel_from_section, not md_pcrel_from */
 #define MD_PCREL_FROM_SECTION(FIXP, SEC) md_pcrel_from_section(FIXP, SEC)
+extern long md_pcrel_from_section PARAMS ((struct fix *, segT));
 
 #define md_parse_name(name, exp) ppc_parse_name (name, exp)
 extern int ppc_parse_name PARAMS ((const char *, struct expressionS *));