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include/coff/

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* internal.h (C_AIX_WEAKEXT): New macro.
	(C_WEAKEXT): Use the GNU definition in the generic part of the file,
	and conditionally reset it to C_AIX_WEAKEXT in the XCOFF part of
	the file.
	(CSECT_SYM_P): New macro.
	* xcoff.h (L_WEAK): Define.
	(EXTERN_SYM_P): New macro.

bfd/
	* coffcode.h (coff_pointerize_aux_hook): Update CSECT_SYM_P to
	check whether a symbol has csect information.
	(coff_print_aux): Likewise.
	* coff-rs6000.c (_bfd_xcoff_swap_aux_in): Handle auxillary csect
	information for C_AIX_WEAKEXT too.
	(_bfd_xcoff_swap_aux_out): Likewise.
	(xcoff_reloc_type_br): Handle defweak symbols too.
	* coff64-rs6000.c (_bfd_xcoff64_swap_aux_in): Handle auxillary csect
	information for C_AIX_WEAKEXT too.
	(_bfd_xcoff64_swap_aux_out): Likewise.
	(xcoff64_reloc_type_br): Handle defweak symbols too.
	* coffgen.c (coff_print_symbol): Handle auxillary function
	information for C_AIX_WEAKEXT too.
	* xcofflink.c (_bfd_xcoff_canonicalize_dynamic_symtab): Set BSF_WEAK
	instead of BSF_GLOBAL if the L_WEAK flag is set.
	(xcoff_dynamic_definition_p): New function.
	(xcoff_link_add_dynamic_symbols): Use it to decide whether ldsym
	defines h.  Don't change h if ldsym isn't the definition.  Otherwise,
	always take the symbol class from the ldsym.  Use weak bfd symbol
	types for weak ldsyms.
	(xcoff_link_add_symbols): Use CSECT_SYM_P and EXTERN_SYM_P.
	Fix the check for whether a definition is from a shared object.
	Allow redefinitions of weak symbols.
	(xcoff_link_check_ar_symbols): Use EXTERN_SYM_P.
	(xcoff_keep_symbol_p): Likewise.
	(bfd_xcoff_size_dynamic_sections): Use CSECT_SYM_P.
	(xcoff_link_input_bfd): Use CSECT_SYM_P and EXTERN_SYM_P.
	Add .loader entries for C_AIX_WEAKEXT as well as C_EXT symbols,
	but mark them as L_WEAK.
	(xcoff_write_global_symbol): Treat weak symbols as C_AIX_WEAKEXT
	instead of C_EXT if C_AIX_WEAKEXT == C_WEAKEXT.

gas/
	* config/tc-ppc.c (ppc_frob_symbol): Add csect information for
	C_AIX_WEAKEXT too.

ld/testsuite/
	* ld-powerpc/aix-glink-2a.s, ld-powerpc/aix-glink-2a.ex,
	ld-powerpc/aix-glink-2b.s, ld-powerpc/aix-glink-2c.s,
	ld-powerpc/aix-glink-2c.ex, ld-powerpc/aix-glink-2d.s,
	ld-powerpc/aix-glink-2-32.dd, ld-powerpc/aix-glink-2-64.dd,
	ld-powerpc/aix-weak-1a.s, ld-powerpc/aix-weak-1b.s,
	ld-powerpc/aix-weak-1-rel.hd, ld-powerpc/aix-weak-1-rel.nd,
	ld-powerpc/aix-weak-1-dso.hd, ld-powerpc/aix-weak-1-dso.nd,
	ld-powerpc/aix-weak-1-dso.dnd, ld-powerpc/aix-weak-1.ex,
	ld-powerpc/aix-weak-2a.s, ld-powerpc/aix-weak-2a.ex,
	ld-powerpc/aix-weak-2a.nd, ld-powerpc/aix-weak-2b.s,
	ld-powerpc/aix-weak-2b.nd, ld-powerpc/aix-weak-2c.s,
	ld-powerpc/aix-weak-2c.ex, ld-powerpc/aix-weak-2c.nd,
	ld-powerpc/aix-weak-2c.od, ld-powerpc/aix-weak-3a.s,
	ld-powerpc/aix-weak-3a.ex, ld-powerpc/aix-weak-3b.s,
	ld-powerpc/aix-weak-3b.ex, ld-powerpc/aix-weak-3-32.d,
	ld-powerpc/aix-weak-3-32.dd, ld-powerpc/aix-weak-3-64.d,
	ld-powerpc/aix-weak-3-64.dd: New tests.
	* ld-powerpc/aix52.exp: Run them.  Replace tmp/aix-* with
	tmp/aix64-* in 64-bit ld options.
This commit is contained in:
Richard Sandiford
2009-03-14 09:34:26 +00:00
parent 07aa5b7d9e
commit 443e66934c
3 changed files with 26 additions and 5 deletions
Download Patch File Download Diff File Expand all files Collapse all files

10
include/coff/ChangeLog
View File

@@ -1,3 +1,13 @@
2009-03-14 Richard Sandiford <r.sandiford@uk.ibm.com>
* internal.h (C_AIX_WEAKEXT): New macro.
(C_WEAKEXT): Use the GNU definition in the generic part of the file,
and conditionally reset it to C_AIX_WEAKEXT in the XCOFF part of
the file.
(CSECT_SYM_P): New macro.
* xcoff.h (L_WEAK): Define.
(EXTERN_SYM_P): New macro.
2009-03-14 Richard Sandiford <r.sandiford@uk.ibm.com>
* xcoff.h (XCOFF_ALLOCATED): New flag.

15
include/coff/internal.h
View File

@@ -273,12 +273,7 @@ struct internal_aouthdr
#define C_LINE 104 /* line # reformatted as symbol table entry */
#define C_ALIAS 105 /* duplicate tag */
#define C_HIDDEN 106 /* ext symbol in dmert public lib */
#if defined _AIX52 || defined AIX_WEAK_SUPPORT
#define C_WEAKEXT 111 /* weak symbol -- AIX standard. */
#else
#define C_WEAKEXT 127 /* weak symbol -- GNU extension. */
#endif
/* New storage classes for TI COFF */
#define C_UEXT 19 /* Tentative external definition */
@@ -311,6 +306,12 @@ struct internal_aouthdr
#define C_HIDEXT 107 /* Un-named external symbol */
#define C_BINCL 108 /* Marks beginning of include file */
#define C_EINCL 109 /* Marks ending of include file */
#define C_AIX_WEAKEXT 111 /* AIX definition of C_WEAKEXT. */
#if defined _AIX52 || defined AIX_WEAK_SUPPORT
#undef C_WEAKEXT
#define C_WEAKEXT C_AIX_WEAKEXT
#endif
/* storage classes for stab symbols for RS/6000 */
#define C_GSYM (0x80)
@@ -336,6 +337,10 @@ struct internal_aouthdr
#define C_THUMBEXTFUNC (C_THUMBEXT + 20) /* 150 */
#define C_THUMBSTATFUNC (C_THUMBSTAT + 20) /* 151 */
/* True if XCOFF symbols of class CLASS have auxillary csect information. */
#define CSECT_SYM_P(CLASS) \
((CLASS) == C_EXT || (CLASS) == C_AIX_WEAKEXT || (CLASS) == C_HIDEXT)
/********************** SECTION HEADER **********************/
#define SCNNMLEN (8)

6
include/coff/xcoff.h
View File

@@ -214,6 +214,8 @@ struct internal_ldsym
#define L_ENTRY (0x20)
/* Exported symbol. */
#define L_EXPORT (0x10)
/* Weak symbol. */
#define L_WEAK (0x08)
/* The ldrel structure. This is used to represent a reloc in the
.loader section. */
@@ -644,4 +646,8 @@ struct xcoff_ar_hdr_big
#define arch_xhdr_big(bfd) \
((struct xcoff_ar_hdr_big *) arch_eltdata (bfd)->arch_header)
/* True if symbols of class CLASS are external. */
#define EXTERN_SYM_P(CLASS) \
((CLASS) == C_EXT || (CLASS) == C_AIX_WEAKEXT)
#endif /* _INTERNAL_XCOFF_H */