Add support for ELF visibility markings.

(Portage version: 2.0.53)

4 files changed, 181 insertions, 2 deletions

diff --git a/dev-lang/nasm/ChangeLog b/dev-lang/nasm/ChangeLog
index c320a0097af8..bcb4adb40b32 100644
--- a/dev-lang/nasm/ChangeLog
+++ b/dev-lang/nasm/ChangeLog
@@ -1,6 +1,12 @@
 # ChangeLog for dev-lang/nasm
-# Copyright 2002-2005 Gentoo Foundation; Distributed under the GPL v2
-# $Header: /var/cvsroot/gentoo-x86/dev-lang/nasm/ChangeLog,v 1.37 2005/05/17 22:56:40 mr_bones_ Exp $
+# Copyright 1999-2005 Gentoo Foundation; Distributed under the GPL v2
+# $Header: /var/cvsroot/gentoo-x86/dev-lang/nasm/ChangeLog,v 1.38 2005/12/17 01:08:18 vapier Exp $
+
+*nasm-0.98.39-r2 (17 Dec 2005)
+
+  17 Dec 2005; Mike Frysinger <vapier@gentoo.org>
+  +files/nasm-0.98.39-elf-visibility.patch, +nasm-0.98.39-r2.ebuild:
+  Add support for ELF visibility markings.
 
 *nasm-0.98.39-r1 (17 May 2005)
 
diff --git a/dev-lang/nasm/files/digest-nasm-0.98.39-r2 b/dev-lang/nasm/files/digest-nasm-0.98.39-r2
new file mode 100644
index 000000000000..6e9a89fbc65a
--- /dev/null
+++ b/dev-lang/nasm/files/digest-nasm-0.98.39-r2
@@ -0,0 +1 @@
+MD5 2032ad44c7359f7a9a166a40a633e772 nasm-0.98.39.tar.bz2 543976
diff --git a/dev-lang/nasm/files/nasm-0.98.39-elf-visibility.patch b/dev-lang/nasm/files/nasm-0.98.39-elf-visibility.patch
new file mode 100644
index 000000000000..9065f9f193db
--- /dev/null
+++ b/dev-lang/nasm/files/nasm-0.98.39-elf-visibility.patch
@@ -0,0 +1,106 @@
+Add support for declaring elf visibility attributes.  Used to
+help cleanup TEXTRELs in misc libraries (like libsdl).
+
+Syntax to declare function foo hidden:
+GLOBAL foo:function:hidden
+
+Patch by Mike Frysinger <vapier@gentoo.org>
+
+http://sourceforge.net/mailarchive/forum.php?thread_id=9230919&forum_id=4978
+
+--- nasm/output/outelf.c
++++ nasm/output/outelf.c
+@@ -50,6 +50,7 @@ struct Symbol {
+     long strpos;                /* string table position of name */
+     long section;               /* section ID of the symbol */
+     int type;                   /* symbol type */
++    int other;                  /* symbol visibility */
+     long value;                 /* address, or COMMON variable align */
+     long size;                  /* size of symbol */
+     long globnum;               /* symbol table offset if global */
+@@ -113,9 +114,15 @@ extern struct ofmt of_elf;
+ 
+ #define SYM_SECTION 0x04
+ #define SYM_GLOBAL 0x10
++#define SYM_NOTYPE 0x00
+ #define SYM_DATA 0x01
+ #define SYM_FUNCTION 0x02
+ 
++#define STV_DEFAULT 0
++#define STV_INTERNAL 1
++#define STV_HIDDEN 2
++#define STV_PROTECTED 3
++
+ #define GLOBAL_TEMP_BASE 16     /* bigger than any constant sym id */
+ 
+ #define SEG_ALIGN 16            /* alignment of sections in file */
+@@ -493,6 +500,7 @@ static void elf_deflabel(char *name, lon
+ 
+     sym->strpos = pos;
+     sym->type = is_global ? SYM_GLOBAL : 0;
++    sym->other = STV_DEFAULT;
+     sym->size = 0;
+     if (segment == NO_SEG)
+         sym->section = SHN_ABS;
+@@ -571,16 +579,40 @@ static void elf_deflabel(char *name, lon
+             sects[sym->section - 1]->gsyms = sym;
+ 
+             if (special) {
+-                int n = strcspn(special, " ");
++                char *visibility = NULL;
++                int n;
++                n = strcspn(special, ":");
++                if (special[n]) {
++                    visibility = special + n + 1;
++                } else
++                    n = strcspn(special, " ");
+ 
+                 if (!nasm_strnicmp(special, "function", n))
+                     sym->type |= SYM_FUNCTION;
+                 else if (!nasm_strnicmp(special, "data", n) ||
+                          !nasm_strnicmp(special, "object", n))
+                     sym->type |= SYM_DATA;
++                else if (!nasm_strnicmp(special, "notype", n))
++                    sym->type |= SYM_NOTYPE;
+                 else
+                     error(ERR_NONFATAL, "unrecognised symbol type `%.*s'",
+                           n, special);
++                if (visibility) {
++                    n = strcspn(visibility, " ");
++                    if (!nasm_strnicmp(visibility, "default", n))
++                        sym->other = STV_DEFAULT;
++                    else if (!nasm_strnicmp(visibility, "internal", n))
++                        sym->other = STV_INTERNAL;
++                    else if (!nasm_strnicmp(visibility, "hidden", n))
++                        sym->other = STV_HIDDEN;
++                    else if (!nasm_strnicmp(visibility, "protected", n))
++                        sym->other = STV_PROTECTED;
++                    else
++                        error(ERR_NONFATAL, "unrecognised symbol type `%.*s'",
++                              n, visibility);
++                    n = strcspn(special, " ");
++                }
++
+                 if (special[n]) {
+                     struct tokenval tokval;
+                     expr *e;
+@@ -1120,7 +1152,8 @@ static struct SAA *elf_build_symtab(long
+         WRITELONG(p, sym->strpos);
+         WRITELONG(p, sym->value);
+         WRITELONG(p, sym->size);
+-        WRITESHORT(p, sym->type);       /* local non-typed thing */
++        WRITECHAR(p, sym->type);       /* local non-typed thing */
++        WRITECHAR(p, sym->other);
+         WRITESHORT(p, sym->section);
+         saa_wbytes(s, entry, 16L);
+         *len += 16;
+@@ -1138,7 +1171,8 @@ static struct SAA *elf_build_symtab(long
+         WRITELONG(p, sym->strpos);
+         WRITELONG(p, sym->value);
+         WRITELONG(p, sym->size);
+-        WRITESHORT(p, sym->type);       /* global non-typed thing */
++        WRITECHAR(p, sym->type);       /* global non-typed thing */
++        WRITECHAR(p, sym->other);
+         WRITESHORT(p, sym->section);
+         saa_wbytes(s, entry, 16L);
+         *len += 16;
diff --git a/dev-lang/nasm/nasm-0.98.39-r2.ebuild b/dev-lang/nasm/nasm-0.98.39-r2.ebuild
new file mode 100644
index 000000000000..fd7486bc4e93
--- /dev/null
+++ b/dev-lang/nasm/nasm-0.98.39-r2.ebuild
@@ -0,0 +1,66 @@
+# Copyright 1999-2005 Gentoo Foundation
+# Distributed under the terms of the GNU General Public License v2
+# $Header: /var/cvsroot/gentoo-x86/dev-lang/nasm/nasm-0.98.39-r2.ebuild,v 1.1 2005/12/17 01:08:18 vapier Exp $
+
+inherit eutils toolchain-funcs
+
+DESCRIPTION="groovy little assembler"
+HOMEPAGE="http://nasm.sourceforge.net/"
+SRC_URI="mirror://sourceforge/nasm/${P}.tar.bz2"
+
+LICENSE="LGPL-2.1"
+SLOT="0"
+KEYWORDS="-* ~amd64 ~x86"
+IUSE="doc build"
+
+DEPEND="!build? ( dev-lang/perl )
+	doc? ( virtual/ghostscript sys-apps/texinfo )"
+RDEPEND=""
+
+src_unpack() {
+	unpack ${A}
+	cd "${S}"
+	epatch "${FILESDIR}"/${P}-elf-visibility.patch
+	if [ "$(gcc-major-version)" -eq "2" ] ; then
+		sed -i \
+			-e 's:-std=c99::g' \
+			configure \
+			|| die "sed failed"
+	fi
+	#security fix for bug #92991
+	sed -i \
+		-e '/vsprintf/c\    vsnprintf(buffer, sizeof(buffer), format, ap);
+		' output/outieee.c \
+		|| die "sed failed"
+}
+
+src_compile() {
+	econf || die
+
+	if use build; then
+		emake nasm || die "emake failed"
+	else
+		emake all || die "emake failed"
+		emake rdf || die "emake failed"
+		if use doc ; then
+			emake doc || die "emake failed"
+		fi
+	fi
+}
+
+src_install() {
+	if use build; then
+		dobin nasm || die "dobin failed"
+	else
+		dobin nasm ndisasm rdoff/{ldrdf,rdf2bin,rdf2ihx,rdfdump,rdflib,rdx} \
+			|| die "dobin failed"
+		dosym /usr/bin/rdf2bin /usr/bin/rdf2com
+		doman nasm.1 ndisasm.1
+		dodoc AUTHORS CHANGES ChangeLog INSTALL README TODO
+		if use doc; then
+			doinfo doc/info/*
+			dohtml doc/html/*
+			dodoc doc/nasmdoc.*
+		fi
+	fi
+}