6736890 PT_SUNWBSS should be disabled

PSARC/2008/715 PT_SUNWBSS removal

23 files changed, 80 insertions, 282 deletions

diff --git a/usr/src/cmd/sgs/include/libld.h b/usr/src/cmd/sgs/include/libld.h
index 0716bb41fe..92a0fb1d78 100644
--- a/usr/src/cmd/sgs/include/libld.h
+++ b/usr/src/cmd/sgs/include/libld.h
@@ -240,9 +240,7 @@ struct ofl_desc {
 	Is_desc		*ofl_isbss;	/* .bss input section (globals) */
 	Is_desc		*ofl_islbss;	/* .lbss input section (globals) */
 	Is_desc		*ofl_istlsbss;	/* .tlsbss input section (globals) */
-	Is_desc		*ofl_issunwdata1; /* .data input section */
-					/* 	partially expanded. */
-	Is_desc		*ofl_issunwbss;	/* .SUNW_bss input section (globals) */
+	Is_desc		*ofl_isparexpn;	/* -z nopartial .data input section */
 	Os_desc		*ofl_osdynamic;	/* .dynamic output section */
 	Os_desc		*ofl_osdynsym;	/* .dynsym output section */
 	Os_desc		*ofl_osldynsym;	/* .SUNW_ldynsym output section */
@@ -272,7 +270,7 @@ struct ofl_desc {
 	Word		ofl_dtflags_1;	/* DT_FLAGS_1 entries */
 	Word		ofl_dtflags;	/* DT_FLAGS entries */
 	Os_desc		*ofl_ossyminfo;	/* .SUNW_syminfo output section */
-	Half		ofl_sunwdata1ndx; /* section index for sunwdata1  */
+	Half		ofl_parexpnndx;	/* -z nopartial section index */
 					/* Ref. at perform_outreloc() in */
 					/* libld/{mach}/machrel.c */
 	Xword		*ofl_checksum;	/* DT_CHECKSUM value address */
diff --git a/usr/src/cmd/sgs/include/rtld.h b/usr/src/cmd/sgs/include/rtld.h
index a7a65ee49c..16857d5c31 100644
--- a/usr/src/cmd/sgs/include/rtld.h
+++ b/usr/src/cmd/sgs/include/rtld.h
@@ -27,8 +27,6 @@
 #ifndef	_RTLD_H
 #define	_RTLD_H
 
-#pragma ident	"%Z%%M%	%I%	%E% SMI"
-
 /*
  * Global include file for the runtime linker.
  */
@@ -738,17 +736,16 @@ typedef struct rt_map32 {
 #define	FLG_RT_NOOPEN	0x00100000	/* dlopen() not allowed */
 #define	FLG_RT_FINICLCT	0x00200000	/* fini has been collected (tsort) */
 #define	FLG_RT_INITCALL	0x00400000	/* objects .init has been called */
-#define	FLG_RT_SUNWBSS	0x00800000	/* object with PT_SUNWBSS, not mapped */
-#define	FLG_RT_OBJINTPO	0x01000000	/* object is a global interposer */
-#define	FLG_RT_SYMINTPO	0x02000000	/* object contains symbol interposer */
-#define	MSK_RT_INTPOSE	0x03000000	/* mask for all interposer */
+#define	FLG_RT_OBJINTPO	0x00800000	/* object is a global interposer */
+#define	FLG_RT_SYMINTPO	0x01000000	/* object contains symbol interposer */
+#define	MSK_RT_INTPOSE	0x01800000	/* mask for all interposer */
 					/*	possibilities */
-#define	FLG_RT_MOVE	0x04000000	/* object needs move operation */
-#define	FLG_RT_TMPLIST	0x08000000	/* object is part of a temporary list */
-#define	FLG_RT_REGSYMS	0x10000000	/* object has DT_REGISTER entries */
-#define	FLG_RT_INITCLCT	0x20000000	/* init has been collected (tsort) */
-#define	FLG_RT_HANDLE	0x40000000	/* generate a handle for this object */
-#define	FLG_RT_RELOCING	0x80000000	/* object is being relocated */
+#define	FLG_RT_MOVE	0x02000000	/* object needs move operation */
+#define	FLG_RT_TMPLIST	0x04000000	/* object is part of a temporary list */
+#define	FLG_RT_REGSYMS	0x08000000	/* object has DT_REGISTER entries */
+#define	FLG_RT_INITCLCT	0x10000000	/* init has been collected (tsort) */
+#define	FLG_RT_HANDLE	0x20000000	/* generate a handle for this object */
+#define	FLG_RT_RELOCING	0x40000000	/* object is being relocated */
 
 #define	FL1_RT_COPYTOOK	0x00000001	/* copy relocation taken */
 #define	FL1_RT_RELATIVE	0x00000002	/* relative path expansion required */
diff --git a/usr/src/cmd/sgs/libconv/common/phdr.msg b/usr/src/cmd/sgs/libconv/common/phdr.msg
index 29e290df26..b1f1684f92 100644
--- a/usr/src/cmd/sgs/libconv/common/phdr.msg
+++ b/usr/src/cmd/sgs/libconv/common/phdr.msg
@@ -20,11 +20,9 @@
 #
 
 #
-# Copyright 2007 Sun Microsystems, Inc.  All rights reserved.
+# Copyright 2008 Sun Microsystems, Inc.  All rights reserved.
 # Use is subject to license terms.
 #
-# ident	"%Z%%M%	%I%	%E% SMI"
-#
 
 @ MSG_PT_NULL		"[ PT_NULL ]"
 @ MSG_PT_NULL_ALT	"PT_NULL"
@@ -47,8 +45,6 @@
 @ MSG_PT_SUNWBSS_ALT	"PT_SUNWBSS"
 @ MSG_PT_SUNWSTACK	"[ PT_SUNWSTACK ]"
 @ MSG_PT_SUNWSTACK_ALT	"PT_SUNWSTACK"
-@ MSG_PT_SUNWBSS	"[ PT_SUNWBSS ]"
-@ MSG_PT_SUNWBSS_ALT	"PT_SUNWBSS"
 @ MSG_PT_SUNWDTRACE	"[ PT_SUNWDTRACE ]"
 @ MSG_PT_SUNWDTRACE_ALT	"PT_SUNWDTRACE"
 @ MSG_PT_SUNWCAP	"[ PT_SUNWCAP ]"
diff --git a/usr/src/cmd/sgs/libld/common/_libld.h b/usr/src/cmd/sgs/libld/common/_libld.h
index 4190eb16e8..76b6c7fb17 100644
--- a/usr/src/cmd/sgs/libld/common/_libld.h
+++ b/usr/src/cmd/sgs/libld/common/_libld.h
@@ -536,8 +536,7 @@ extern Sdf_desc		*sdf_find(const char *, List *);
 #define	ld_make_bss		ld64_make_bss
 #define	ld_make_data		ld64_make_data
 #define	ld_make_got		ld64_make_got
-#define	ld_make_sunwbss		ld64_make_sunwbss
-#define	ld_make_sunwdata	ld64_make_sunwdata
+#define	ld_make_parexpn_data	ld64_make_parexpn_data
 #define	ld_make_sunwmove	ld64_make_sunmove
 #define	ld_make_text		ld64_make_text
 #define	ld_map_out		ld64_map_out
@@ -621,8 +620,7 @@ extern Sdf_desc		*sdf_find(const char *, List *);
 #define	ld_make_bss		ld32_make_bss
 #define	ld_make_data		ld32_make_data
 #define	ld_make_got		ld32_make_got
-#define	ld_make_sunwbss		ld32_make_sunwbss
-#define	ld_make_sunwdata	ld32_make_sunwdata
+#define	ld_make_parexpn_data	ld32_make_parexpn_data
 #define	ld_make_sunwmove	ld32_make_sunmove
 #define	ld_make_text		ld32_make_text
 #define	ld_map_out		ld32_map_out
@@ -720,8 +718,7 @@ extern Xword		ld_lcm(Xword, Xword);
 extern uintptr_t	ld_make_bss(Ofl_desc *, Xword, Xword, Bss_Type);
 extern Is_desc		*ld_make_data(Ofl_desc *, size_t);
 extern uintptr_t	ld_make_got(Ofl_desc *);
-extern uintptr_t	ld_make_sunwbss(Ofl_desc *, size_t, Xword);
-extern uintptr_t	ld_make_sunwdata(Ofl_desc *, size_t, Xword);
+extern uintptr_t	ld_make_parexpn_data(Ofl_desc *, size_t, Xword);
 extern uintptr_t	ld_make_sunwmove(Ofl_desc *, int);
 extern Is_desc		*ld_make_text(Ofl_desc *, size_t);
 extern void		ld_map_out(Ofl_desc *);
diff --git a/usr/src/cmd/sgs/libld/common/entry.c b/usr/src/cmd/sgs/libld/common/entry.c
index 39ecec21c8..d06df73030 100644
--- a/usr/src/cmd/sgs/libld/common/entry.c
+++ b/usr/src/cmd/sgs/libld/common/entry.c
@@ -26,7 +26,6 @@
  * Copyright 2008 Sun Microsystems, Inc.  All rights reserved.
  * Use is subject to license terms.
  */
-#pragma ident	"%Z%%M%	%I%	%E% SMI"
 
 #define	ELF_TARGET_AMD64
 
@@ -53,7 +52,6 @@ typedef enum {
 #endif
 	LD_DYN,
 	LD_DTRACE,
-	LD_SUNWBSS,
 	LD_TLS,
 #if	defined(_ELF64)
 	LD_UNWIND,		/* (amd64-only) */
@@ -136,9 +134,6 @@ static const Sg_desc sg_desc[LD_NUM] = {
 	SG_DESC_INIT(PT_SUNWDTRACE, 0,
 		MSG_ORIG(MSG_ENT_DTRACE), (FLG_SG_TYPE | FLG_SG_FLAGS)),
 
-	/* LD_SUNWBSS */
-	SG_DESC_INIT(PT_SUNWBSS, 0, MSG_ORIG(MSG_ENT_SUNWBSS), FLG_SG_TYPE),
-
 	/* LD_TLS */
 	SG_DESC_INIT(PT_TLS, PF_R, MSG_ORIG(MSG_ENT_TLS),
 	    (FLG_SG_TYPE | FLG_SG_FLAGS)),
@@ -172,10 +167,6 @@ static const Sg_desc sg_desc[LD_NUM] = {
  * at runtime, once memory has been allocated and the templates copied.
  */
 static const Ent_desc	ent_desc[] = {
-	{{NULL, NULL}, MSG_ORIG(MSG_SCN_SUNWBSS), NULL,
-		SHF_ALLOC + SHF_WRITE, SHF_ALLOC + SHF_WRITE,
-		(Sg_desc *)LD_SUNWBSS, 0, FALSE},
-
 	{{NULL, NULL}, NULL, SHT_NOTE, 0, 0,
 		(Sg_desc *)LD_NOTE, 0, FALSE},
 
@@ -271,11 +262,8 @@ ld_ent_setup(Ofl_desc *ofl, Xword segalign)
 	sgp[LD_LDATA].sg_phdr.p_flags = ld_targ.t_m.m_dataseg_perm;
 	sgp[LD_DTRACE].sg_phdr.p_flags |= PF_X;
 #endif
-	if (ofl->ofl_flags & FLG_OF_DYNAMIC) {
-		sgp[LD_SUNWBSS].sg_phdr.p_flags = ld_targ.t_m.m_dataseg_perm;
-	} else {
+	if ((ofl->ofl_flags & FLG_OF_DYNAMIC) == 0)
 		sgp[LD_DATA].sg_phdr.p_flags |= PF_X;
-	}
 
 	/*
 	 * Traverse the new entrance descriptor list converting the segment
diff --git a/usr/src/cmd/sgs/libld/common/libld.msg b/usr/src/cmd/sgs/libld/common/libld.msg
index 6c9a770eda..17137b0e15 100644
--- a/usr/src/cmd/sgs/libld/common/libld.msg
+++ b/usr/src/cmd/sgs/libld/common/libld.msg
@@ -703,8 +703,6 @@
 @ MSG_SCN_STAB		".stab"
 @ MSG_SCN_STABEXCL	".stab.exclstr"
 @ MSG_SCN_STRTAB	".strtab"
-@ MSG_SCN_SUNWBSS	".SUNW_bss"
-@ MSG_SCN_SUNWDATA1	".SUNW_data1"
 @ MSG_SCN_SUNWMOVE	".SUNW_move"
 @ MSG_SCN_SUNWRELOC	".SUNW_reloc"
 @ MSG_SCN_SUNWSYMINFO	".SUNW_syminfo"
@@ -746,7 +744,6 @@
 @ MSG_ENT_TLS		"tls"
 @ MSG_ENT_UNWIND	"unwind"
 
-@ MSG_ENT_SUNWBSS	"SUNW_bss"
 @ MSG_ENT_SUNWCAP	"SUNW_cap"
 
 # Symbol names
diff --git a/usr/src/cmd/sgs/libld/common/machrel.amd.c b/usr/src/cmd/sgs/libld/common/machrel.amd.c
index fc55b08fd2..5438433ef1 100644
--- a/usr/src/cmd/sgs/libld/common/machrel.amd.c
+++ b/usr/src/cmd/sgs/libld/common/machrel.amd.c
@@ -23,7 +23,6 @@
  * Copyright 2008 Sun Microsystems, Inc.  All rights reserved.
  * Use is subject to license terms.
  */
-#pragma ident	"%Z%%M%	%I%	%E% SMI"
 
 /* Get the x86 version of the relocation engine */
 #define	DO_RELOC_LIBLD_X86
@@ -344,7 +343,7 @@ ld_perform_outreloc(Rel_desc * orsp, Ofl_desc * ofl)
 			else
 				ndx = sdp->sd_shndx;
 		} else
-			ndx = ofl->ofl_sunwdata1ndx;
+			ndx = ofl->ofl_parexpnndx;
 	} else
 		ndx = sdp->sd_symndx;
 
diff --git a/usr/src/cmd/sgs/libld/common/machrel.intel.c b/usr/src/cmd/sgs/libld/common/machrel.intel.c
index 14c7973585..955abf3a11 100644
--- a/usr/src/cmd/sgs/libld/common/machrel.intel.c
+++ b/usr/src/cmd/sgs/libld/common/machrel.intel.c
@@ -27,7 +27,6 @@
  * Copyright 2008 Sun Microsystems, Inc.  All rights reserved.
  * Use is subject to license terms.
  */
-#pragma ident	"%Z%%M%	%I%	%E% SMI"
 
 /* Get the x86 version of the relocation engine */
 #define	DO_RELOC_LIBLD_X86
@@ -291,7 +290,7 @@ ld_perform_outreloc(Rel_desc * orsp, Ofl_desc * ofl)
 			else
 				ndx = sdp->sd_shndx;
 		} else
-			ndx = ofl->ofl_sunwdata1ndx;
+			ndx = ofl->ofl_parexpnndx;
 	} else
 		ndx = sdp->sd_symndx;
 
diff --git a/usr/src/cmd/sgs/libld/common/machrel.sparc.c b/usr/src/cmd/sgs/libld/common/machrel.sparc.c
index 079c1b8baa..00a1b46a4d 100644
--- a/usr/src/cmd/sgs/libld/common/machrel.sparc.c
+++ b/usr/src/cmd/sgs/libld/common/machrel.sparc.c
@@ -26,7 +26,6 @@
  * Copyright 2008 Sun Microsystems, Inc.  All rights reserved.
  * Use is subject to license terms.
  */
-#pragma ident	"%Z%%M%	%I%	%E% SMI"
 
 /* Get the sparc version of the relocation engine */
 #define	DO_RELOC_LIBLD_SPARC
@@ -714,7 +713,7 @@ ld_perform_outreloc(Rel_desc * orsp, Ofl_desc * ofl)
 			else
 				ndx = sdp->sd_shndx;
 		} else
-			ndx = ofl->ofl_sunwdata1ndx;
+			ndx = ofl->ofl_parexpnndx;
 	} else
 		ndx = sdp->sd_symndx;
 
diff --git a/usr/src/cmd/sgs/libld/common/map.c b/usr/src/cmd/sgs/libld/common/map.c
index 5d39eb49c8..03a9dac047 100644
--- a/usr/src/cmd/sgs/libld/common/map.c
+++ b/usr/src/cmd/sgs/libld/common/map.c
@@ -2667,14 +2667,11 @@ ld_map_parse(const char *mapfile, Ofl_desc *ofl)
 				case PT_NOTE:
 					dst_type = 9;
 					break;
-				case PT_SUNWBSS:
-					dst_type = 10;
-					break;
 				case PT_TLS:
-					dst_type = 11;
+					dst_type = 10;
 					break;
 				case PT_NULL:
-					dst_type = 12;
+					dst_type = 11;
 					break;
 				default:
 					eprintf(ofl->ofl_lml, ERR_FATAL,
diff --git a/usr/src/cmd/sgs/libld/common/outfile.c b/usr/src/cmd/sgs/libld/common/outfile.c
index 08c7efc721..f5f25ca3e8 100644
--- a/usr/src/cmd/sgs/libld/common/outfile.c
+++ b/usr/src/cmd/sgs/libld/common/outfile.c
@@ -530,9 +530,6 @@ ld_create_outfile(Ofl_desc *ofl)
 				if (ofl->ofl_unwindhdr)
 					nseg++;
 #endif
-			} else if (ptype == PT_SUNWBSS) {
-				if (ofl->ofl_issunwbss)
-					nseg++;
 			} else if (ptype == PT_SUNWDTRACE) {
 				if (ofl->ofl_dtracesym)
 					nseg++;
diff --git a/usr/src/cmd/sgs/libld/common/relocate.c b/usr/src/cmd/sgs/libld/common/relocate.c
index f9b4886959..932ae57c34 100644
--- a/usr/src/cmd/sgs/libld/common/relocate.c
+++ b/usr/src/cmd/sgs/libld/common/relocate.c
@@ -2038,8 +2038,8 @@ process_movereloc(Ofl_desc *ofl, Is_desc *rsect)
 		if (psdp->sd_flags & FLG_SY_PAREXPN) {
 			int	_num, num;
 
-			reld.rel_osdesc = ofl->ofl_issunwdata1->is_osdesc;
-			reld.rel_isdesc = ofl->ofl_issunwdata1;
+			reld.rel_osdesc = ofl->ofl_isparexpn->is_osdesc;
+			reld.rel_isdesc = ofl->ofl_isparexpn;
 			reld.rel_roffset = mp->m_poffset;
 
 			for (num = mp->m_repeat, _num = 0; _num < num; _num++) {
@@ -2657,7 +2657,7 @@ ld_adj_movereloc(Ofl_desc *ofl, Rel_desc *arsp)
 		 * the relocation entry relocating the expanded partial symbol.
 		 */
 		arsp->rel_roffset += psdp->sd_sym->st_value -
-		    ofl->ofl_issunwdata1->is_osdesc->os_shdr->sh_addr;
+		    ofl->ofl_isparexpn->is_osdesc->os_shdr->sh_addr;
 		DBG_CALL(Dbg_move_adjexpandreloc(ofl->ofl_lml,
 		    arsp->rel_roffset, psdp->sd_name));
 	}
diff --git a/usr/src/cmd/sgs/libld/common/sections.c b/usr/src/cmd/sgs/libld/common/sections.c
index f4261f2f91..dfd8cd7d7a 100644
--- a/usr/src/cmd/sgs/libld/common/sections.c
+++ b/usr/src/cmd/sgs/libld/common/sections.c
@@ -2049,53 +2049,17 @@ make_sym_sec(Ofl_desc *ofl, const char *sectname, Word stype, int ident)
 }
 
 /*
- * Build a .sunwbss section for allocation of tentative definitions.
- */
-uintptr_t
-ld_make_sunwbss(Ofl_desc *ofl, size_t size, Xword align)
-{
-	Shdr		*shdr;
-	Elf_Data	*data;
-	Is_desc		*isec;
-
-	/*
-	 * Allocate header structs. We will set the name ourselves below,
-	 * and there is no entcnt for a BSS. So, the shname and entcnt
-	 * arguments are 0.
-	 */
-	if (new_section(ofl, SHT_NOBITS, MSG_ORIG(MSG_SCN_SUNWBSS), 0,
-	    &isec, &shdr, &data) == S_ERROR)
-		return (S_ERROR);
-
-	data->d_size = size;
-	data->d_align = align;
-
-	shdr->sh_size = (Xword)size;
-	shdr->sh_addralign = align;
-
-	/*
-	 * Retain this .sunwbss input section as this will be where global
-	 * symbol references are added.
-	 */
-	ofl->ofl_issunwbss = isec;
-	if (ld_place_section(ofl, isec, 0, 0) == (Os_desc *)S_ERROR)
-		return (S_ERROR);
-
-	return (1);
-}
-
-/*
  * This routine is called when -z nopartial is in effect.
  */
 uintptr_t
-ld_make_sunwdata(Ofl_desc *ofl, size_t size, Xword align)
+ld_make_parexpn_data(Ofl_desc *ofl, size_t size, Xword align)
 {
 	Shdr		*shdr;
 	Elf_Data	*data;
 	Is_desc		*isec;
 	Os_desc		*osp;
 
-	if (new_section(ofl, SHT_PROGBITS, MSG_ORIG(MSG_SCN_SUNWDATA1), 0,
+	if (new_section(ofl, SHT_PROGBITS, MSG_ORIG(MSG_SCN_DATA), 0,
 	    &isec, &shdr, &data) == S_ERROR)
 		return (S_ERROR);
 
@@ -2111,11 +2075,11 @@ ld_make_sunwdata(Ofl_desc *ofl, size_t size, Xword align)
 		return (S_ERROR);
 
 	/*
-	 * Retain this .sunwdata1 input section as this will
-	 * be where global
-	 * symbol references are added.
+	 * Retain handle to this .data input section. Variables using move
+	 * sections (partial initialization) will be redirected here when
+	 * such global references are added and '-z nopartial' is in effect.
 	 */
-	ofl->ofl_issunwdata1 = isec;
+	ofl->ofl_isparexpn = isec;
 	osp = ld_place_section(ofl, isec, ld_targ.t_id.id_data, 0);
 	if (osp == (Os_desc *)S_ERROR)
 		return (S_ERROR);
diff --git a/usr/src/cmd/sgs/libld/common/sunwmove.c b/usr/src/cmd/sgs/libld/common/sunwmove.c
index f844f076bb..847af64264 100644
--- a/usr/src/cmd/sgs/libld/common/sunwmove.c
+++ b/usr/src/cmd/sgs/libld/common/sunwmove.c
@@ -23,7 +23,6 @@
  * Copyright 2008 Sun Microsystems, Inc.  All rights reserved.
  * Use is subject to license terms.
  */
-#pragma ident	"%Z%%M%	%I%	%E% SMI"
 
 #include	<string.h>
 #include	<debug.h>
@@ -39,10 +38,8 @@ make_mvsections(Ofl_desc *ofl)
 	Listnode *	lnp1;
 	Psym_info *	psym;
 	Word 		mv_nums = 0;
-	Xword		align_sunwbss = 0;	/* Alignment for .sunwbss */
-	Xword		align_sunwdata1 = 0;	/*   for .sunwdata1 */
-	size_t		size_sunwbss = 0;	/* Size of .sunwbss */
-	size_t		size_sunwdata1 = 0;	/* Size of .sunwdata1 */
+	Xword		align_parexpn = 0;	/* for -z nopartial .data sec */
+	size_t		size_parexpn = 0;	/* Size of parexpn section */
 
 	/*
 	 * Compute the size of the output move section
@@ -59,27 +56,15 @@ make_mvsections(Ofl_desc *ofl)
 			align_val = 8;
 		if (symd->sd_flags & FLG_SY_PAREXPN) {
 			/*
-			 * This global symbol goes to .sunwdata1
+			 * This global symbol goes to the special
+			 * partial initialization .data section.
 			 */
-			size_sunwdata1 = (size_t)S_ROUND(size_sunwdata1,
+			size_parexpn = (size_t)S_ROUND(size_parexpn,
 			    sym->st_value) + sym->st_size;
-			if (align_val > align_sunwdata1)
-				align_sunwdata1 = align_val;
+			if (align_val > align_parexpn)
+				align_parexpn = align_val;
 
 		} else {
-			if ((ofl->ofl_flags & FLG_OF_SHAROBJ) &&
-			    (symd->sd_flags & FLG_SY_TENTSYM) &&
-			    (ELF_ST_BIND(sym->st_info) != STB_LOCAL)) {
-				/*
-				 * If output file is non-executable
-				 * shared object, and this is a tentative symbol
-				 * this symbol goes to .sunwbss
-				 */
-				size_sunwbss = (size_t)S_ROUND(size_sunwbss,
-				    sym->st_value) + sym->st_size;
-				if (align_val > align_sunwbss)
-					align_sunwbss = align_val;
-			}
 			mv_nums += psym->psym_num;
 		}
 	}
@@ -90,25 +75,15 @@ make_mvsections(Ofl_desc *ofl)
 	}
 
 	/*
-	 * Generate the .sunwbss section now that we know its size and
-	 * alignment.
-	 */
-	if (size_sunwbss) {
-		if (ld_make_sunwbss(ofl, size_sunwbss,
-		    align_sunwbss) == S_ERROR)
-			return (S_ERROR);
-	}
-
-	/*
 	 * Add empty area for partially initialized symbols.
 	 *
-	 * The .SUNWDATA1 is to be created when '-z option' is in effect or
-	 * there are any partially init. symbol which are to be expanded.
+	 * A special .data section is created when the '-z nopartial'
+	 * option is in effect in order to receive the expanded data.
 	 */
-	if (size_sunwdata1) {
+	if (size_parexpn) {
 		/* LINTED */
-		if (ld_make_sunwdata(ofl, size_sunwdata1,
-		    align_sunwdata1) == S_ERROR)
+		if (ld_make_parexpn_data(ofl, size_parexpn,
+		    align_parexpn) == S_ERROR)
 			return (S_ERROR);
 	}
 	return (1);
diff --git a/usr/src/cmd/sgs/libld/common/syms.c b/usr/src/cmd/sgs/libld/common/syms.c
index 5ace9ddfa3..52ca5e28ec 100644
--- a/usr/src/cmd/sgs/libld/common/syms.c
+++ b/usr/src/cmd/sgs/libld/common/syms.c
@@ -1408,10 +1408,10 @@ ld_sym_validate(Ofl_desc *ofl)
 		 * object only account for scoped COMMON symbols (these will
 		 * be converted to .bss references).
 		 *
-		 * For partially initialized symbol,
-		 *  if it is expanded, it goes to sunwdata1.
-		 *  if it is local, it goes to .bss.
-		 *  if the output is shared object, it goes to .sunwbss.
+		 * When -z nopartial is in effect, partially initialized
+		 * symbols are directed to the special .data section
+		 * created for that purpose (ofl->ofl_isparexpn).
+		 * Otherwise, partially initialized symbols go to .bss.
 		 *
 		 * Also refer to make_mvsections() in sunwmove.c
 		 */
@@ -1419,20 +1419,8 @@ ld_sym_validate(Ofl_desc *ofl)
 		    (((oflags & FLG_OF_RELOBJ) == 0) ||
 		    ((sdp->sd_flags1 & FLG_SY1_HIDDEN) &&
 		    (oflags & FLG_OF_PROCRED)))) {
-			int countbss = 0;
-
-			if (sdp->sd_psyminfo == 0) {
-				countbss = 1;
-			} else if ((sdp->sd_flags & FLG_SY_PAREXPN) != 0) {
-				countbss = 0;
-			} else if (ELF_ST_BIND(sym->st_info) == STB_LOCAL) {
-				countbss = 1;
-			} else if ((ofl->ofl_flags & FLG_OF_SHAROBJ) != 0) {
-				countbss = 0;
-			} else
-				countbss = 1;
-
-			if (countbss) {
+			if ((sdp->sd_psyminfo == 0) ||
+			    ((sdp->sd_flags & FLG_SY_PAREXPN) == 0)) {
 				Xword * size, * align;
 
 				if (type != STT_TLS) {
diff --git a/usr/src/cmd/sgs/libld/common/update.c b/usr/src/cmd/sgs/libld/common/update.c
index af06f02d3c..b3dc2fa37c 100644
--- a/usr/src/cmd/sgs/libld/common/update.c
+++ b/usr/src/cmd/sgs/libld/common/update.c
@@ -181,14 +181,14 @@ update_osym(Ofl_desc *ofl)
 	Ifl_desc	*ifl;
 	Word		bssndx, etext_ndx, edata_ndx = 0, end_ndx, start_ndx;
 	Word		end_abs = 0, etext_abs = 0, edata_abs;
-	Word		tlsbssndx = 0, sunwbssndx = 0, sunwdata1ndx;
+	Word		tlsbssndx = 0, parexpnndx;
 #if	defined(_ELF64)
 	Word		lbssndx = 0;
 	Addr		lbssaddr = 0;
 #endif
 	Addr		bssaddr, etext = 0, edata = 0, end = 0, start = 0;
 	Addr		tlsbssaddr = 0;
-	Addr 		sunwbssaddr = 0, sunwdata1addr;
+	Addr 		parexpnaddr;
 	int		start_set = 0;
 	Sym		_sym = {0}, *sym, *symtab = 0;
 	Sym		*dynsym = 0, *ldynsym = 0;
@@ -611,15 +611,16 @@ update_osym(Ofl_desc *ofl)
 	}
 
 	/*
-	 * Assign .sunwdata1 information
+	 * If expanding partially expanded symbols under '-z nopartial',
+	 * prepare to do that.
 	 */
-	if (ofl->ofl_issunwdata1) {
-		osp = ofl->ofl_issunwdata1->is_osdesc;
-		sunwdata1addr = (Addr)(osp->os_shdr->sh_addr +
-		    ofl->ofl_issunwdata1->is_indata->d_off);
+	if (ofl->ofl_isparexpn) {
+		osp = ofl->ofl_isparexpn->is_osdesc;
+		parexpnaddr = (Addr)(osp->os_shdr->sh_addr +
+		    ofl->ofl_isparexpn->is_indata->d_off);
 		/* LINTED */
-		sunwdata1ndx = elf_ndxscn(osp->os_scn);
-		ofl->ofl_sunwdata1ndx = osp->os_scnsymndx;
+		parexpnndx = elf_ndxscn(osp->os_scn);
+		ofl->ofl_parexpnndx = osp->os_scnsymndx;
 	}
 
 	/*
@@ -788,19 +789,19 @@ update_osym(Ofl_desc *ofl)
 			 * If we are expanding the locally bound partially
 			 * initialized symbols, then update the address here.
 			 */
-			if (ofl->ofl_issunwdata1 &&
+			if (ofl->ofl_isparexpn &&
 			    (sdp->sd_flags & FLG_SY_PAREXPN) && !update_done) {
 				static	Addr	laddr = 0;
 
-				sym->st_shndx = sunwdata1ndx;
-				sdp->sd_isc = ofl->ofl_issunwdata1;
+				sym->st_shndx = parexpnndx;
+				sdp->sd_isc = ofl->ofl_isparexpn;
 				if (flags & FLG_OF_RELOBJ) {
-					sym->st_value = sunwdata1addr;
+					sym->st_value = parexpnaddr;
 				} else {
 					sym->st_value = laddr;
 					laddr += sym->st_size;
 				}
-				sunwdata1addr += sym->st_size;
+				parexpnaddr += sym->st_size;
 			}
 
 			/*
@@ -941,18 +942,6 @@ update_osym(Ofl_desc *ofl)
 		tlsbssndx = elf_ndxscn(osp->os_scn);
 	}
 
-	/*
-	 * Assign .SUNW_bss information for use with updating COMMON symbols.
-	 */
-	if (ofl->ofl_issunwbss) {
-		osp = ofl->ofl_issunwbss->is_osdesc;
-		sunwbssaddr = (Addr)(osp->os_shdr->sh_addr +
-		    ofl->ofl_issunwbss->is_indata->d_off);
-		/* LINTED */
-		sunwbssndx = elf_ndxscn(osp->os_scn);
-	}
-
-
 	if ((sorted_syms = libld_calloc(ofl->ofl_globcnt +
 	    ofl->ofl_elimcnt + ofl->ofl_scopecnt, sizeof (*sorted_syms))) == 0)
 		return ((Addr)S_ERROR);
@@ -1023,37 +1012,20 @@ update_osym(Ofl_desc *ofl)
 		    (sdp->sd_shndx = symptr->st_shndx) == SHN_COMMON)) {
 
 			/*
-			 * An expanded symbol goes to .sunwdata1.
-			 *
-			 * A partial initialized global symbol within a shared
-			 * object goes to .sunwbss.
-			 *
+			 * An expanded symbol goes to a special .data section
+			 * prepared for that purpose (ofl->ofl_isparexpn).
 			 * Assign COMMON allocations to .bss.
-			 *
 			 * Otherwise leave it as is.
 			 */
 			if (sdp->sd_flags & FLG_SY_PAREXPN) {
 				restore = 1;
-				sdp->sd_shndx = sunwdata1ndx;
+				sdp->sd_shndx = parexpnndx;
 				sdp->sd_flags &= ~FLG_SY_SPECSEC;
 				symptr->st_value = (Xword) S_ROUND(
-				    sunwdata1addr, symptr->st_value);
-				sunwdata1addr = symptr->st_value +
+				    parexpnaddr, symptr->st_value);
+				parexpnaddr = symptr->st_value +
 				    symptr->st_size;
-				sdp->sd_isc = ofl->ofl_issunwdata1;
-				sdp->sd_flags |= FLG_SY_COMMEXP;
-
-			} else if ((sdp->sd_psyminfo != (Psym_info *)NULL) &&
-			    (flags & FLG_OF_SHAROBJ) &&
-			    (ELF_ST_BIND(symptr->st_info) != STB_LOCAL)) {
-				restore = 1;
-				sdp->sd_shndx = sunwbssndx;
-				sdp->sd_flags &= ~FLG_SY_SPECSEC;
-				symptr->st_value = (Xword)S_ROUND(sunwbssaddr,
-				    symptr->st_value);
-				sunwbssaddr = symptr->st_value +
-				    symptr->st_size;
-				sdp->sd_isc = ofl->ofl_issunwbss;
+				sdp->sd_isc = ofl->ofl_isparexpn;
 				sdp->sd_flags |= FLG_SY_COMMEXP;
 
 			} else if (ELF_ST_TYPE(symptr->st_info) != STT_TLS &&
@@ -2952,9 +2924,9 @@ expand_move(Ofl_desc *ofl, Sym_desc *sdp, Move *u1)
 	Addr		base1;
 	unsigned int	stride;
 
-	osp = ofl->ofl_issunwdata1->is_osdesc;
+	osp = ofl->ofl_isparexpn->is_osdesc;
 	base1 = (Addr)(osp->os_shdr->sh_addr +
-	    ofl->ofl_issunwdata1->is_indata->d_off);
+	    ofl->ofl_isparexpn->is_indata->d_off);
 	taddr0 = taddr = osp->os_outdata->d_buf;
 	mv = u1;
 
@@ -3572,12 +3544,6 @@ ld_update_outfile(Ofl_desc *ofl)
 		phdr->p_memsz = offset - hshdr->sh_offset;
 
 		/*
-		 * If this is PT_SUNWBSS, set alignment
-		 */
-		if (phdr->p_type == PT_SUNWBSS)
-			phdr->p_align = p_align;
-
-		/*
 		 * If this is the first loadable segment of a dynamic object,
 		 * or an interpreter has been specified (a static object built
 		 * with an interpreter will still be given a PT_HDR entry), then
@@ -3616,8 +3582,7 @@ ld_update_outfile(Ofl_desc *ofl)
 		 * (presumably from a map file) use it and make sure the
 		 * previous segment does not run into this segment.
 		 */
-		if ((phdr->p_type == PT_LOAD) ||
-		    (phdr->p_type == PT_SUNWBSS)) {
+		if (phdr->p_type == PT_LOAD) {
 			if ((sgp->sg_flags & FLG_SG_VADDR)) {
 				if (_phdr && (vaddr > phdr->p_vaddr) &&
 				    (phdr->p_type == PT_LOAD))
@@ -3716,8 +3681,7 @@ ld_update_outfile(Ofl_desc *ofl)
 				    shdr->sh_info, MSG_INTL(MSG_FIL_INVSHINFO));
 
 			if (!(flags & FLG_OF_RELOBJ) &&
-			    (phdr->p_type == PT_LOAD) ||
-			    (phdr->p_type == PT_SUNWBSS)) {
+			    (phdr->p_type == PT_LOAD)) {
 				if (hshdr)
 					vaddr += (shdr->sh_offset -
 					    hshdr->sh_offset);
@@ -3837,7 +3801,7 @@ ld_update_outfile(Ofl_desc *ofl)
 	/*
 	 * Update Move Table.
 	 */
-	if (ofl->ofl_osmove || ofl->ofl_issunwdata1) {
+	if (ofl->ofl_osmove || ofl->ofl_isparexpn) {
 		if (update_move(ofl) == S_ERROR)
 			return (S_ERROR);
 	}
diff --git a/usr/src/cmd/sgs/packages/common/SUNWonld-README b/usr/src/cmd/sgs/packages/common/SUNWonld-README
index 672997c5c4..37f7ba9482 100644
--- a/usr/src/cmd/sgs/packages/common/SUNWonld-README
+++ b/usr/src/cmd/sgs/packages/common/SUNWonld-README
@@ -1404,3 +1404,5 @@ Bugid   Risk Synopsis
 6748160 problem with -zrescan (D)
 	PSARC/2008/651 New ld archive rescan options
 6763342 sloppy relocations need to get sloppier
+6736890 PT_SUNWBSS should be disabled (D)
+	PSARC/2008/715 PT_SUNWBSS removal
diff --git a/usr/src/cmd/sgs/rtld/common/_elf.h b/usr/src/cmd/sgs/rtld/common/_elf.h
index 58e33f47c1..062bb89e37 100644
--- a/usr/src/cmd/sgs/rtld/common/_elf.h
+++ b/usr/src/cmd/sgs/rtld/common/_elf.h
@@ -105,7 +105,6 @@ typedef struct _rt_elf_private {
 	ulong_t		e_moveent;	/* size of base movetab entry */
 	ulong_t		e_tlsstatoff;	/* TLS offset into static block */
 	void		*e_movetab;	/* movetable address */
-	Phdr		*e_sunwbss;	/* program header for SUNWBSS */
 	Phdr		*e_pttls;	/* PT_TLS */
 	Phdr		*e_ptunwind;	/* PT_SUNW_UNWIND (amd64 specific) */
 	ulong_t		e_syment;	/* size of symtab entry */
@@ -149,7 +148,6 @@ typedef struct _rt_elf_private {
 #define	VERDEF(X)		(((Rt_elfp *)(X)->rt_priv)->e_verdef)
 #define	VERDEFNUM(X)		(((Rt_elfp *)(X)->rt_priv)->e_verdefnum)
 #define	VERSYM(X)		(((Rt_elfp *)(X)->rt_priv)->e_versym)
-#define	SUNWBSS(X)		(((Rt_elfp *)(X)->rt_priv)->e_sunwbss)
 #define	SYMINENT(X)		(((Rt_elfp *)(X)->rt_priv)->e_syminent)
 #define	PLTPAD(X)		(((Rt_elfp *)(X)->rt_priv)->e_pltpad)
 #define	PLTPADEND(X)		(((Rt_elfp *)(X)->rt_priv)->e_pltpadend)
diff --git a/usr/src/cmd/sgs/rtld/common/elf.c b/usr/src/cmd/sgs/rtld/common/elf.c
index 717ad4dd2f..ccd118b056 100644
--- a/usr/src/cmd/sgs/rtld/common/elf.c
+++ b/usr/src/cmd/sgs/rtld/common/elf.c
@@ -1123,8 +1123,7 @@ elf_map_it(
 		 * Skip non-loadable segments or segments that don't occupy
 		 * any memory.
 		 */
-		if (((phdr->p_type != PT_LOAD) &&
-		    (phdr->p_type != PT_SUNWBSS)) || (phdr->p_memsz == 0))
+		if ((phdr->p_type != PT_LOAD) || (phdr->p_memsz == 0))
 			continue;
 
 		/*
@@ -1154,20 +1153,7 @@ elf_map_it(
 		/*
 		 * Determine the type of mapping required.
 		 */
-		if (phdr->p_type == PT_SUNWBSS) {
-			/*
-			 * Potentially, we can defer the loading of any SUNWBSS
-			 * segment, depending on whether the symbols it provides
-			 * have been bound to.  In this manner, large segments
-			 * that are interposed upon between shared libraries
-			 * may not require mapping.  Note, that the mapping
-			 * information is recorded in our mapping descriptor at
-			 * this time.
-			 */
-			mlen = phdr->p_memsz;
-			flen = 0;
-
-		} else if ((phdr->p_filesz == 0) && (phdr->p_flags == 0)) {
+		if ((phdr->p_filesz == 0) && (phdr->p_flags == 0)) {
 			/*
 			 * If this segment has no backing file and no flags
 			 * specified, then it defines a reservation.  At this
@@ -2678,7 +2664,6 @@ elf_map_so(Lm_list *lml, Aliste lmco, const char *pname, const char *oname,
 	Phdr		*lph;		/* last loadable Phdr */
 	Phdr		*lfph = 0;	/* last loadable (filesz != 0) Phdr */
 	Phdr		*lmph = 0;	/* last loadable (memsz != 0) Phdr */
-	Phdr		*swph = 0;	/* program header for SUNWBSS */
 	Phdr		*tlph = 0;	/* program header for PT_TLS */
 	Phdr		*unwindph = 0;	/* program header for PT_SUNW_UNWIND */
 	Cap		*cap = 0;	/* program header for SUNWCAP */
@@ -2755,8 +2740,7 @@ elf_map_so(Lm_list *lml, Aliste lmco, const char *pname, const char *oname,
 	 */
 	for (i = 0, pptr = phdr; i < (int)ehdr->e_phnum; i++,
 	    pptr = (Phdr *)((Off)pptr + ehdr->e_phentsize)) {
-		if ((pptr->p_type == PT_LOAD) ||
-		    (pptr->p_type == PT_SUNWBSS)) {
+		if (pptr->p_type == PT_LOAD) {
 
 			if (fph == 0) {
 				fph = pptr;
@@ -2773,8 +2757,6 @@ elf_map_so(Lm_list *lml, Aliste lmco, const char *pname, const char *oname,
 				lmph = pptr;
 			if (pptr->p_filesz)
 				lfph = pptr;
-			if (pptr->p_type == PT_SUNWBSS)
-				swph = pptr;
 			if (pptr->p_align > align)
 				align = pptr->p_align;
 
@@ -2950,10 +2932,6 @@ elf_map_so(Lm_list *lml, Aliste lmco, const char *pname, const char *oname,
 	/*
 	 * If this shared object contains any special segments, record them.
 	 */
-	if (swph) {
-		FLAGS(lmp) |= FLG_RT_SUNWBSS;
-		SUNWBSS(lmp) = phdr + (swph - phdr0);
-	}
 	if (tlph && (tls_assign(lml, lmp, (phdr + (tlph - phdr0))) == 0)) {
 		remove_so(lml, lmp);
 		return (0);
diff --git a/usr/src/cmd/sgs/rtld/common/move.c b/usr/src/cmd/sgs/rtld/common/move.c
index 766b69c5ac..eb085b349c 100644
--- a/usr/src/cmd/sgs/rtld/common/move.c
+++ b/usr/src/cmd/sgs/rtld/common/move.c
@@ -24,8 +24,6 @@
  * Use is subject to license terms.
  */
 
-#pragma ident	"%Z%%M%	%I%	%E% SMI"
-
 /*
  * Object file dependent support for ELF objects.
  */
@@ -56,7 +54,6 @@ move_data(Rt_map *lmp)
 {
 	Lm_list	*lml = LIST(lmp);
 	Move	*mv = MOVETAB(lmp);
-	Phdr	*pptr = SUNWBSS(lmp);
 	ulong_t	num, mvnum = MOVESZ(lmp) / MOVEENT(lmp);
 	int	moves;
 
@@ -74,32 +71,6 @@ move_data(Rt_map *lmp)
 		Half 	rep, repno, stride;
 		Sym	*sym;
 
-		/*
-		 * If the target address needs to be mapped in,
-		 * map it first.
-		 *	(You have to protect the code, thread safe)
-		 */
-		if (FLAGS(lmp) & FLG_RT_SUNWBSS) {
-			long	zlen;
-			Off	foff;
-			caddr_t	zaddr, eaddr;
-
-			foff = (Off) (pptr->p_vaddr + ADDR(lmp));
-			zaddr = (caddr_t)M_PROUND(foff);
-			eaddr = pptr->p_vaddr + ADDR(lmp) +
-			    (caddr_t)pptr->p_memsz;
-			zero((caddr_t)foff, (long)(zaddr - foff));
-			zlen = eaddr - zaddr;
-			if (zlen > 0) {
-				if (dz_map(lml, zaddr, zlen,
-				    (PROT_READ | PROT_WRITE),
-				    (MAP_FIXED | MAP_PRIVATE)) == MAP_FAILED)
-					return (0);
-			}
-
-			FLAGS(lmp) &= ~FLG_RT_SUNWBSS;
-		}
-
 		if ((sym = (Sym *)SYMTAB(lmp) + ELF_M_SYM(mv->m_info)) == 0)
 			continue;
 
diff --git a/usr/src/cmd/sgs/rtld/mdbmod/common/rtld.c b/usr/src/cmd/sgs/rtld/mdbmod/common/rtld.c
index 35091d452c..8252887337 100644
--- a/usr/src/cmd/sgs/rtld/mdbmod/common/rtld.c
+++ b/usr/src/cmd/sgs/rtld/mdbmod/common/rtld.c
@@ -24,8 +24,6 @@
  * Use is subject to license terms.
  */
 
-#pragma ident	"%Z%%M%	%I%	%E% SMI"
-
 #include <msg.h>
 #include <_rtld.h>
 #include <conv.h>
@@ -70,7 +68,6 @@ static const mdb_bitmask_t rtflags_bits[] = {
 	{ MSG_ORIG(MSG_FLG_NOOPEN), FLG_RT_NOOPEN, FLG_RT_NOOPEN},
 	{ MSG_ORIG(MSG_FLG_FINICLCT), FLG_RT_FINICLCT, FLG_RT_FINICLCT},
 	{ MSG_ORIG(MSG_FLG_INITCALL), FLG_RT_INITCALL, FLG_RT_INITCALL},
-	{ MSG_ORIG(MSG_FLG_SUNWBSS), FLG_RT_SUNWBSS, FLG_RT_SUNWBSS},
 	{ MSG_ORIG(MSG_FLG_OBJINTPO), FLG_RT_OBJINTPO, FLG_RT_OBJINTPO},
 	{ MSG_ORIG(MSG_FLG_SYMINTPO), FLG_RT_SYMINTPO, FLG_RT_SYMINTPO},
 	{ MSG_ORIG(MSG_FLG_MOVE), FLG_RT_MOVE, FLG_RT_MOVE},
diff --git a/usr/src/cmd/sgs/rtld/mdbmod/common/rtld.msg b/usr/src/cmd/sgs/rtld/mdbmod/common/rtld.msg
index 1fe46e0a0f..7ca2cb36a8 100644
--- a/usr/src/cmd/sgs/rtld/mdbmod/common/rtld.msg
+++ b/usr/src/cmd/sgs/rtld/mdbmod/common/rtld.msg
@@ -23,8 +23,6 @@
 # Copyright 2008 Sun Microsystems, Inc.  All rights reserved.
 # Use is subject to license terms.
 #
-# pragma ident	"%Z%%M%	%I%	%E% SMI"
-# 
 
 @ _START_
 
@@ -86,7 +84,6 @@
 @ MSG_FLG_NOOPEN	"NO-OPEN"
 @ MSG_FLG_FINICLCT	"FINI-COLLECTED"
 @ MSG_FLG_INITCALL	"INIT-CALLED"
-@ MSG_FLG_SUNWBSS	"SUNWBSS"
 @ MSG_FLG_OBJINTPO	"OBJECT-INTERPOSE"
 @ MSG_FLG_SYMINTPO	"SYMBOL-INTERPOSE"
 @ MSG_FLG_MOVE		"MOVE"
diff --git a/usr/src/uts/common/sys/elf.h b/usr/src/uts/common/sys/elf.h
index dda9173532..903af2e47c 100644
--- a/usr/src/uts/common/sys/elf.h
+++ b/usr/src/uts/common/sys/elf.h
@@ -331,7 +331,7 @@ typedef struct {
 
 
 #define	PT_LOSUNW	0x6ffffffa
-#define	PT_SUNWBSS	0x6ffffffa	/* Sun Specific segment */
+#define	PT_SUNWBSS	0x6ffffffa	/* Sun Specific segment (unused) */
 #define	PT_SUNWSTACK	0x6ffffffb	/* describes the stack segment */
 #define	PT_SUNWDTRACE	0x6ffffffc	/* private */
 #define	PT_SUNWCAP	0x6ffffffd	/* hard/soft capabilities segment */