commit:     c62fc5c0068b7cf27a79700cf9f0e7f20a625641
Author:     Sergei Trofimovich <slyfox <AT> gentoo <DOT> org>
AuthorDate: Sun Jan 28 22:54:24 2018 +0000
Commit:     Sergei Trofimovich <slyfox <AT> gentoo <DOT> org>
CommitDate: Sun Jan 28 22:58:41 2018 +0000
URL:        https://gitweb.gentoo.org/repo/gentoo.git/commit/?id=c62fc5c0

sys-boot/gnu-efi: fix linker script on .gnu.hash systems, bug #575300

Two patches here:
- gnu-hash.patch: fix linker script to work on .gnu.hash-only systems
- ia64-setjmp.patch: fix build breakage on ia64 systems

Reported-by: Émeric Maschino
Closes: https://bugs.gentoo.org/575300
Package-Manager: Portage-2.3.20, Repoman-2.3.6

 .../files/gnu-efi-3.0.6-ia64-gnu-hash.patch        | 149 +++++++++++++++++++
 .../gnu-efi/files/gnu-efi-3.0.6-ia64-setjmp.patch  | 163 +++++++++++++++++++++
 sys-boot/gnu-efi/gnu-efi-3.0.6-r2.ebuild           |  93 ++++++++++++
 3 files changed, 405 insertions(+)

diff --git a/sys-boot/gnu-efi/files/gnu-efi-3.0.6-ia64-gnu-hash.patch 
b/sys-boot/gnu-efi/files/gnu-efi-3.0.6-ia64-gnu-hash.patch
new file mode 100644
index 00000000000..9487ba4c673
--- /dev/null
+++ b/sys-boot/gnu-efi/files/gnu-efi-3.0.6-ia64-gnu-hash.patch
@@ -0,0 +1,149 @@
+https://sourceforge.net/p/gnu-efi/code/merge-requests/1/
+
+From 2cc0b085fb82e80d43cc08c8376dff9f9532a72d Mon Sep 17 00:00:00 2001
+From: Sergei Trofimovich <[email protected]>
+Date: Sat, 27 Jan 2018 20:29:05 +0000
+Subject: [PATCH] gnuefi: preserve .gnu.hash sections (unbreaks elilo on IA-64)
+
+Gentoo has slightly modified linker defaults: --hash-style=gnu
+This means all ELF files in system have '.gnu.hash' section
+but no '.hash' section.
+
+gnuefi's ldscript did not account for it and as a result
+one symbol 'ImageBase' did not resolve locally for elilo.so
+and caused 'elilo' to fail to load by ia64 EFI:
+  Loading.: Gentoo (try new elilo)
+  ImageAddress: pointer is outside of image
+  ImageAddress: pointer is outside of image
+
+Those two relocations come from crt0-efi-ia64.S PE32 entry point
+fdescr:
+
+```
+    #define IMAGE_REL_BASED_DIR64<->10
+    .section .reloc, "a"
+    data4   _start_plabel // Page RVA
+    data4   12            // Block Size (2*4+2*2)
+    data2   (IMAGE_REL_BASED_DIR64<<12) +  0 // reloc for plabel's entry point
+    data2   (IMAGE_REL_BASED_DIR64<<12) +  8 // reloc for plabel's global 
pointer
+```
+
+These refer ImageBase.
+
+The change adds '.gnu.hash' collection (follows existing '.hash'
+collection).
+
+Tested on IA-64 by successfully booting elilo-3.16.
+
+Bug: https://bugs.gentoo.org/575300
+Signed-off-by: Sergei Trofimovich <[email protected]>
+---
+ README.gnuefi                  | 8 +++++++-
+ gnuefi/elf_ia32_efi.lds        | 4 +++-
+ gnuefi/elf_ia32_fbsd_efi.lds   | 4 +++-
+ gnuefi/elf_ia64_efi.lds        | 4 +++-
+ gnuefi/elf_x86_64_efi.lds      | 4 +++-
+ gnuefi/elf_x86_64_fbsd_efi.lds | 4 +++-
+ 6 files changed, 22 insertions(+), 6 deletions(-)
+
+diff --git a/README.gnuefi b/README.gnuefi
+index a7feec0..512698c 100644
+--- a/README.gnuefi
++++ b/README.gnuefi
+@@ -231,11 +231,17 @@ and page sized.These eight sections are used to group 
together the much
+ greater number of sections that are typically present in ELF object files.
+ Specifically:
+ 
+- .hash
++ .hash (and/or .gnu.hash)
+       Collects the ELF .hash info (this section _must_ be the first
+       section in order to build a shared object file; the section is
+       not actually loaded or used at runtime).
+ 
++      GNU binutils provides a mechanism to generate different hash info
++      via --hash-style=<sysv|gnu|both> option. In this case output
++      shared object will contain .hash section, .gnu.hash section or
++      both. In order to generate correct output linker script preserves
++      both types of hash sections.
++
+  .text
+       Collects all sections containing executable code.
+ 
+diff --git a/gnuefi/elf_ia32_efi.lds b/gnuefi/elf_ia32_efi.lds
+index 6cc4ce1..f27fe5f 100644
+--- a/gnuefi/elf_ia32_efi.lds
++++ b/gnuefi/elf_ia32_efi.lds
+@@ -5,7 +5,9 @@ SECTIONS
+ {
+   . = 0;
+   ImageBase = .;
+-  .hash : { *(.hash) }        /* this MUST come first! */
++  /* .hash and/or .gnu.hash MUST come first! */
++  .hash : { *(.hash) }
++  .gnu.hash : { *(.gnu.hash) }
+   . = ALIGN(4096);
+   .text :
+   {
+diff --git a/gnuefi/elf_ia32_fbsd_efi.lds b/gnuefi/elf_ia32_fbsd_efi.lds
+index 77d6fad..cd309e2 100644
+--- a/gnuefi/elf_ia32_fbsd_efi.lds
++++ b/gnuefi/elf_ia32_fbsd_efi.lds
+@@ -5,7 +5,9 @@ SECTIONS
+ {
+   . = 0;
+   ImageBase = .;
+-  .hash : { *(.hash) }        /* this MUST come first! */
++  /* .hash and/or .gnu.hash MUST come first! */
++  .hash : { *(.hash) }
++  .gnu.hash : { *(.gnu.hash) }
+   . = ALIGN(4096);
+   .text :
+   {
+diff --git a/gnuefi/elf_ia64_efi.lds b/gnuefi/elf_ia64_efi.lds
+index baca962..190792a 100644
+--- a/gnuefi/elf_ia64_efi.lds
++++ b/gnuefi/elf_ia64_efi.lds
+@@ -5,7 +5,9 @@ SECTIONS
+ {
+   . = 0;
+   ImageBase = .;
+-  .hash : { *(.hash) }        /* this MUST come first! */
++  /* .hash and/or .gnu.hash MUST come first! */
++  .hash : { *(.hash) }
++  .gnu.hash : { *(.gnu.hash) }
+   . = ALIGN(4096);
+   .text :
+   {
+diff --git a/gnuefi/elf_x86_64_efi.lds b/gnuefi/elf_x86_64_efi.lds
+index 942d1f3..7be5902 100644
+--- a/gnuefi/elf_x86_64_efi.lds
++++ b/gnuefi/elf_x86_64_efi.lds
+@@ -6,7 +6,9 @@ SECTIONS
+ {
+   . = 0;
+   ImageBase = .;
+-  .hash : { *(.hash) }        /* this MUST come first! */
++  /* .hash and/or .gnu.hash MUST come first! */
++  .hash : { *(.hash) }
++  .gnu.hash : { *(.gnu.hash) }
+   . = ALIGN(4096);
+   .eh_frame : 
+   { 
+diff --git a/gnuefi/elf_x86_64_fbsd_efi.lds b/gnuefi/elf_x86_64_fbsd_efi.lds
+index 6fd2031..fe1f334 100644
+--- a/gnuefi/elf_x86_64_fbsd_efi.lds
++++ b/gnuefi/elf_x86_64_fbsd_efi.lds
+@@ -6,7 +6,9 @@ SECTIONS
+ {
+   . = 0;
+   ImageBase = .;
+-  .hash : { *(.hash) }        /* this MUST come first! */
++  /* .hash and/or .gnu.hash MUST come first! */
++  .hash : { *(.hash) }
++  .gnu.hash : { *(.gnu.hash) }
+   . = ALIGN(4096);
+   .eh_frame : 
+   { 
+-- 
+2.16.1
+

diff --git a/sys-boot/gnu-efi/files/gnu-efi-3.0.6-ia64-setjmp.patch 
b/sys-boot/gnu-efi/files/gnu-efi-3.0.6-ia64-setjmp.patch
new file mode 100644
index 00000000000..b0964426500
--- /dev/null
+++ b/sys-boot/gnu-efi/files/gnu-efi-3.0.6-ia64-setjmp.patch
@@ -0,0 +1,163 @@
+https://sourceforge.net/p/gnu-efi/code/merge-requests/2/
+
+From 0e6995a96b0f5867c8d85fbd251cfbc295a3fc4d Mon Sep 17 00:00:00 2001
+From: Sergei Trofimovich <[email protected]>
+Date: Sun, 28 Jan 2018 16:44:21 +0000
+Subject: [PATCH] gnu-efi: fix lib/ia64/setjmp.S IA-64 build failure
+
+The build failed as:
+  lib/ia64/setjmp.S:171: Error: Unknown opcode `ldf.nt1 f26=[r10],8'
+  lib/ia64/setjmp.S:178: Error: Operand 1 of `ldf.fill.nt1' should be a 
floating-point register
+
+The change syncs longjmp definition with
+    
edk2/EdkCompatibilityPkg/Foundation/Library/EdkIIGlueLib/Library/BaseLib/Ipf/setjmp.s
+pulling in:
+- branch in the end of function
+- registers used wrong instruction for float restore
+
+Signed-off-by: Sergei Trofimovich <[email protected]>
+---
+ lib/ia64/setjmp.S | 61 +++++++++++++++++++++++++++----------------------------
+ 1 file changed, 30 insertions(+), 31 deletions(-)
+
+diff --git a/lib/ia64/setjmp.S b/lib/ia64/setjmp.S
+index c806fbc..bbb29d8 100644
+--- a/lib/ia64/setjmp.S
++++ b/lib/ia64/setjmp.S
+@@ -16,11 +16,11 @@ BASIS,
+       .globl  setjmp
+       .type   setjmp, @function
+ setjmp:
+-      alloc   loc = ar.pfs, 1, 2, 1, 0
++      alloc   loc0 = ar.pfs, 1, 2, 1, 0
+       ;;
+       mov     r14 = ar.unat
+       mov     r15 = ar.bsp
+-      add     r10 = 0x10 * 20, in0
++      add     r10 = 0x10*20, in0
+       ;;
+       stf.spill.nta   [in0] = f2, 0x10 
+       st8.spill.nta   [r10] = r4, 8
+@@ -98,29 +98,25 @@ setjmp:
+ 
+       .globl  longjmp
+       .type   longjmp, @function
+-      .regstk
++      .regstk 2, 0, 0, 0
+ longjmp:
+-      add             r10 = 0x10 * 20 + 8*14, in0
+-      movl            r2 = ~(((1<<14) - 1) << 16) | 3)
++      add             r10 = 0x10*20 + 8*14, in0
++      movl            r2  = ~((((1<<14) - 1) << 16) | 3)
+       ;;
+       ld8.nt1         r14 = [r10], -8*2
+       mov             r15 = ar.bspstore
+       ;;
+       ld8.nt1         r17 = [r10], -8
+       mov             r16 = ar.rsc
+-      cmp.leu         p6 = r14, r15
++      cmp.leu         p6  = r14, r15
+       ;;
+       ld8.nt1         r18 = [r10], -8
+       ld8.nt1         r25 = [r10], -8
+-      and             r2 = r16, r2
++      and             r2  = r16, r2
+       ;;
+-      ldf.fill.nt1    f2 = [in0], 0x10
++      ldf.fill.nt1    f2  = [in0], 0x10
+       ld8.nt1         r24 = [r10], -8
+-      mov             b5 = r25
+-      ;;
+-      mov             ar.rsc = r2
+-      ld8.nt1         r23 = [r10], -8
+-      mov             b5 = r25
++      mov             b5  = r25
+       ;;
+       mov             ar.rsc = r2
+       ld8.nt1         r23 = [r10], -8
+@@ -137,51 +133,51 @@ _skip_flushrs:
+       mov             r31 = ar.rnat
+       loadrs
+       ;;
+-      ldf.fill.nt1    f4 = [in0], 0x10
++      ldf.fill.nt1    f4  = [in0], 0x10
+       ld8.nt1         r22 = [r10], -8
+-      dep             r2 = -1, r14, 3, 6
++      dep             r2  = -1, r14, 3, 6
+       ;;
+-      ldf.fill.nt1    f5 = [in0], 0x10
+-      ld8.nt1         f21 = [r10], -8
+-      cmp             p6 = r2, r15
++      ldf.fill.nt1    f5  = [in0], 0x10
++      ld8.nt1         r21 = [r10], -8
++      cmp.ltu         p6  = r2, r15
+       ;;
+       ld8.nt1         r20 = [r10], -0x10
+ (p6)  ld8.nta         r31 = [r2]
+-      mov             b3 = r23
++      mov             b3  = r23
+       ;;
+       ldf.fill.nt1    f16 = [in0], 0x10
+-      ld8.fill.nt1    r7 = [r10], -8
+-      mov             b2 = r22
++      ld8.fill.nt1    r7  = [r10], -8
++      mov             b2  = r22
+       ;;
+       ldf.fill.nt1    f17 = [in0], 0x10
+-      ld8.fill.nt1    r6 = [r10], -8
+-      mov             b1 = r21
++      ld8.fill.nt1    r6  = [r10], -8
++      mov             b1  = r21
+       ;;
+       ldf.fill.nt1    f18 = [in0], 0x10
+-      ld8.fill.nt1    r5 = [r10], -8
+-      mov             b0 = r20
++      ld8.fill.nt1    r5  = [r10], -8
++      mov             b0  = r20
+       ;;
+       ldf.fill.nt1    f19 = [in0], 0x10
+-      ld8.fill.nt1    r4 = [r10], 8*13
++      ld8.fill.nt1    r4  = [r10], 8*13
+       ;;
+       ldf.fill.nt1    f20 = [in0], 0x10
+       ld8.nt1         r19 = [r10], 0x10
+       ;;
+       ldf.fill.nt1    f21 = [in0], 0x10
+-      ldf.nt1         f26 = [r10], 8
++      ld8.nt1         r26 = [r10], 8
+       mov             ar.pfs = r19
+       ;;
+       ldf.fill.nt1    f22 = [in0], 0x10
+       ld8.nt1         r27 = [r10], 8
+-      mov             pr = r26, -1
++      mov             pr  = r26, -1
+       ;;
+-      ldf.fill.nt1    r23 = [in0], 0x10
++      ldf.fill.nt1    f23 = [in0], 0x10
+       ld8.nt1         r28 = [r10], -17*8 - 0x10
+       mov             ar.lc = r27
+       ;;
+       ldf.fill.nt1    f24 = [in0], 0x10
+       ldf.fill.nt1    f25 = [in0], 0x10
+-      mov             r8 = in1
++      mov             r8  = in1
+       ;;
+       ldf.fill.nt1    f26 = [in0], 0x10
+       ldf.fill.nt1    f31 = [r10], -0x10
+@@ -192,9 +188,12 @@ _skip_flushrs:
+       ldf.fill.nt1    f28 = [in0]
+       ldf.fill.nt1    f29 = [r10], 0x10*3 + 8*4
+       ;;
+-      ld8.fill.nt1    sp = [r10]
++      ld8.fill.nt1    sp  = [r10]
+       mov             ar.unat = r18
+       ;;
+       mov             ar.bspstore = r14
+       mov             ar.rnat = r31
+       ;;
++      invala
++      mov             ar.rsc = r16
++      br.ret.sptk     b0
+-- 
+2.16.1
+

diff --git a/sys-boot/gnu-efi/gnu-efi-3.0.6-r2.ebuild 
b/sys-boot/gnu-efi/gnu-efi-3.0.6-r2.ebuild
new file mode 100644
index 00000000000..d30fd4771bd
--- /dev/null
+++ b/sys-boot/gnu-efi/gnu-efi-3.0.6-r2.ebuild
@@ -0,0 +1,93 @@
+# Copyright 1999-2018 Gentoo Foundation
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=6
+
+inherit flag-o-matic toolchain-funcs
+
+DESCRIPTION="Library for build EFI Applications"
+HOMEPAGE="http://gnu-efi.sourceforge.net/";
+SRC_URI="mirror://sourceforge/gnu-efi/${P}.tar.bz2"
+
+# inc/, lib/ dirs (README.efilib)
+# - BSD-2
+# gnuefi dir:
+# - BSD (3-cluase): crt0-efi-ia32.S
+# - GPL-2+ : setjmp_ia32.S
+LICENSE="GPL-2+ BSD BSD-2"
+SLOT="0"
+KEYWORDS="-* ~amd64 ~arm ~arm64 ~ia64 ~x86"
+IUSE="abi_x86_32 abi_x86_64 -custom-cflags"
+
+DEPEND="sys-apps/pciutils"
+RDEPEND=""
+
+# These objects get run early boot (i.e. not inside of Linux),
+# so doing these QA checks on them doesn't make sense.
+QA_EXECSTACK="usr/*/lib*efi.a:* usr/*/crt*.o"
+RESTRICT="strip"
+
+PATCHES=(
+       "${FILESDIR}"/${P}-ia64-gnu-hash.patch
+       "${FILESDIR}"/${P}-ia64-setjmp.patch
+)
+
+src_prepare() {
+       sed -i -e "s/-Werror//" Make.defaults || die
+       default
+}
+
+efimake() {
+       local arch=
+       case ${CHOST} in
+               arm*) arch=arm ;;
+               aarch64*) arch=aarch64 ;;
+               ia64*) arch=ia64 ;;
+               i?86*) arch=ia32 ;;
+               x86_64*) arch=x86_64 ;;
+               *) die "Unknown CHOST" ;;
+       esac
+
+       local args=(
+               ARCH="${arch}"
+               HOSTCC="${BUILD_CC}"
+               CC="${CC}"
+               AS="${AS}"
+               LD="${LD}"
+               AR="${AR}"
+               PREFIX="${EPREFIX}/usr"
+               LIBDIR='$(PREFIX)'/$(get_libdir)
+       )
+       emake -j1 "${args[@]}" "$@"
+}
+
+src_compile() {
+       tc-export BUILD_CC AR AS CC LD
+
+       if use custom-cflags; then
+               # https://bugs.gentoo.org/607992
+               filter-mfpmath sse
+
+               # https://bugs.gentoo.org/619628
+               append-flags $(test-flags-CC -mno-avx)
+       else
+               unset CFLAGS CPPFLAGS LDFLAGS
+       fi
+
+       if [[ ${CHOST} == x86_64* ]]; then
+               use abi_x86_32 && CHOST=i686 ABI=x86 efimake
+               use abi_x86_64 && efimake
+       else
+               efimake
+       fi
+}
+
+src_install() {
+       if [[ ${CHOST} == x86_64* ]]; then
+               use abi_x86_32 && CHOST=i686 ABI=x86 efimake INSTALLROOT="${D}" 
install
+               use abi_x86_64 && efimake INSTALLROOT="${D}" install
+       else
+               efimake INSTALLROOT="${D}" install
+       fi
+       einstalldocs
+}

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