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* [Buildroot] [PATCH 1/2] package/binutils: fixes glibc build compiled with -Os on x86
@ 2022-02-11 18:06 Waldemar Brodkorb
  2022-02-13 20:45 ` Thomas Petazzoni via buildroot
  2022-02-14 21:06 ` Arnout Vandecappelle
  0 siblings, 2 replies; 4+ messages in thread
From: Waldemar Brodkorb @ 2022-02-11 18:06 UTC (permalink / raw)
  To: buildroot

See here:
https://sourceware.org/bugzilla/show_bug.cgi?id=28870

Signed-off-by: Waldemar Brodkorb <wbx@openadk.org>
---
 ...OT32-relocations-against-ABS-symbols.patch | 46 ++++++++++++++++
 ...OT32-relocations-against-ABS-symbols.patch | 53 +++++++++++++++++++
 ...OT32-relocations-against-ABS-symbols.patch | 47 ++++++++++++++++
 3 files changed, 146 insertions(+)
 create mode 100644 package/binutils/2.35.2/0010-i386-Allow-GOT32-relocations-against-ABS-symbols.patch
 create mode 100644 package/binutils/2.36.1/0010-i386-Allow-GOT32-relocations-against-ABS-symbols.patch
 create mode 100644 package/binutils/2.37/0007-i386-Allow-GOT32-relocations-against-ABS-symbols.patch

diff --git a/package/binutils/2.35.2/0010-i386-Allow-GOT32-relocations-against-ABS-symbols.patch b/package/binutils/2.35.2/0010-i386-Allow-GOT32-relocations-against-ABS-symbols.patch
new file mode 100644
index 0000000000..e95eb1e7c5
--- /dev/null
+++ b/package/binutils/2.35.2/0010-i386-Allow-GOT32-relocations-against-ABS-symbols.patch
@@ -0,0 +1,46 @@
+From 30a954525f4e53a9cd50a1a8a6f201c7cf6595c7 Mon Sep 17 00:00:00 2001
+From: "H.J. Lu" <hjl.tools@gmail.com>
+Date: Mon, 7 Feb 2022 15:22:19 -0800
+Subject: [PATCH] i386: Allow GOT32 relocations against ABS symbols
+
+GOT32 relocations are allowed since absolute value + addend is stored in
+the GOT slot.
+
+Tested on glibc 2.35 build with GCC 11.2 and -Os.
+
+bfd/
+
+	PR ld/28870
+	* elfxx-x86.c (_bfd_elf_x86_valid_reloc_p): Also allow GOT32
+	relocations.
+
+Signed-off-by: Waldemar Brodkorb <wbx@openadk.org>
+
+diff --git a/bfd/elfxx-x86.c b/bfd/elfxx-x86.c
+index 7ac2411fc80..d00dc45677b 100644
+--- a/bfd/elfxx-x86.c
++++ b/bfd/elfxx-x86.c
+@@ -1942,9 +1942,9 @@ _bfd_elf_x86_valid_reloc_p (asection *input_section,
+       irel = *rel;
+ 
+       /* Only allow relocations against absolute symbol, which can be
+-	 resolved as absolute value + addend.  GOTPCREL relocations
+-	 are allowed since absolute value + addend is stored in the
+-	 GOT slot.  */
++	 resolved as absolute value + addend.  GOTPCREL and GOT32
++	 relocations are allowed since absolute value + addend is
++	 stored in the GOT slot.  */
+       if (bed->target_id == X86_64_ELF_DATA)
+ 	{
+ 	  r_type &= ~R_X86_64_converted_reloc_bit;
+@@ -1965,7 +1965,9 @@ _bfd_elf_x86_valid_reloc_p (asection *input_section,
+       else
+ 	valid_p = (r_type == R_386_32
+ 		   || r_type == R_386_16
+-		   || r_type == R_386_8);
++		   || r_type == R_386_8
++		   || r_type == R_386_GOT32
++		   || r_type == R_386_GOT32X);
+ 
+       if (valid_p)
+ 	*no_dynreloc_p = true;
diff --git a/package/binutils/2.36.1/0010-i386-Allow-GOT32-relocations-against-ABS-symbols.patch b/package/binutils/2.36.1/0010-i386-Allow-GOT32-relocations-against-ABS-symbols.patch
new file mode 100644
index 0000000000..af96f1a0f0
--- /dev/null
+++ b/package/binutils/2.36.1/0010-i386-Allow-GOT32-relocations-against-ABS-symbols.patch
@@ -0,0 +1,53 @@
+From 30a954525f4e53a9cd50a1a8a6f201c7cf6595c7 Mon Sep 17 00:00:00 2001
+From: "H.J. Lu" <hjl.tools@gmail.com>
+Date: Mon, 7 Feb 2022 15:22:19 -0800
+Subject: [PATCH] i386: Allow GOT32 relocations against ABS symbols
+
+GOT32 relocations are allowed since absolute value + addend is stored in
+the GOT slot.
+
+Tested on glibc 2.35 build with GCC 11.2 and -Os.
+
+bfd/
+
+	PR ld/28870
+	* elfxx-x86.c (_bfd_elf_x86_valid_reloc_p): Also allow GOT32
+	relocations.
+
+ld/
+
+	PR ld/28870
+	* testsuite/ld-i386/i386.exp: Run pr28870.
+	* testsuite/ld-i386/pr28870.d: New file.
+	* testsuite/ld-i386/pr28870.s: Likewise.
+
+Signed-off-by: Waldemar Brodkorb <wbx@openadk.org>
+
+diff --git a/bfd/elfxx-x86.c b/bfd/elfxx-x86.c
+index 7ac2411fc80..d00dc45677b 100644
+--- a/bfd/elfxx-x86.c
++++ b/bfd/elfxx-x86.c
+@@ -1942,9 +1942,9 @@ _bfd_elf_x86_valid_reloc_p (asection *input_section,
+       irel = *rel;
+ 
+       /* Only allow relocations against absolute symbol, which can be
+-	 resolved as absolute value + addend.  GOTPCREL relocations
+-	 are allowed since absolute value + addend is stored in the
+-	 GOT slot.  */
++	 resolved as absolute value + addend.  GOTPCREL and GOT32
++	 relocations are allowed since absolute value + addend is
++	 stored in the GOT slot.  */
+       if (bed->target_id == X86_64_ELF_DATA)
+ 	{
+ 	  r_type &= ~R_X86_64_converted_reloc_bit;
+@@ -1965,7 +1965,9 @@ _bfd_elf_x86_valid_reloc_p (asection *input_section,
+       else
+ 	valid_p = (r_type == R_386_32
+ 		   || r_type == R_386_16
+-		   || r_type == R_386_8);
++		   || r_type == R_386_8
++		   || r_type == R_386_GOT32
++		   || r_type == R_386_GOT32X);
+ 
+       if (valid_p)
+ 	*no_dynreloc_p = true;
diff --git a/package/binutils/2.37/0007-i386-Allow-GOT32-relocations-against-ABS-symbols.patch b/package/binutils/2.37/0007-i386-Allow-GOT32-relocations-against-ABS-symbols.patch
new file mode 100644
index 0000000000..3e29282261
--- /dev/null
+++ b/package/binutils/2.37/0007-i386-Allow-GOT32-relocations-against-ABS-symbols.patch
@@ -0,0 +1,47 @@
+From 30a954525f4e53a9cd50a1a8a6f201c7cf6595c7 Mon Sep 17 00:00:00 2001
+From: "H.J. Lu" <hjl.tools@gmail.com>
+Date: Mon, 7 Feb 2022 15:22:19 -0800
+Subject: [PATCH] i386: Allow GOT32 relocations against ABS symbols
+
+GOT32 relocations are allowed since absolute value + addend is stored in
+the GOT slot.
+
+Tested on glibc 2.35 build with GCC 11.2 and -Os.
+
+bfd/
+
+	PR ld/28870
+	* elfxx-x86.c (_bfd_elf_x86_valid_reloc_p): Also allow GOT32
+	relocations.
+
+
+Signed-off-by: Waldemar Brodkorb <wbx@openadk.org>
+
+diff --git a/bfd/elfxx-x86.c b/bfd/elfxx-x86.c
+index 7ac2411fc80..d00dc45677b 100644
+--- a/bfd/elfxx-x86.c
++++ b/bfd/elfxx-x86.c
+@@ -1942,9 +1942,9 @@ _bfd_elf_x86_valid_reloc_p (asection *input_section,
+       irel = *rel;
+ 
+       /* Only allow relocations against absolute symbol, which can be
+-	 resolved as absolute value + addend.  GOTPCREL relocations
+-	 are allowed since absolute value + addend is stored in the
+-	 GOT slot.  */
++	 resolved as absolute value + addend.  GOTPCREL and GOT32
++	 relocations are allowed since absolute value + addend is
++	 stored in the GOT slot.  */
+       if (bed->target_id == X86_64_ELF_DATA)
+ 	{
+ 	  r_type &= ~R_X86_64_converted_reloc_bit;
+@@ -1965,7 +1965,9 @@ _bfd_elf_x86_valid_reloc_p (asection *input_section,
+       else
+ 	valid_p = (r_type == R_386_32
+ 		   || r_type == R_386_16
+-		   || r_type == R_386_8);
++		   || r_type == R_386_8
++		   || r_type == R_386_GOT32
++		   || r_type == R_386_GOT32X);
+ 
+       if (valid_p)
+ 	*no_dynreloc_p = true;
-- 
2.30.2

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2022-02-11 18:06 [Buildroot] [PATCH 1/2] package/binutils: fixes glibc build compiled with -Os on x86 Waldemar Brodkorb
2022-02-13 20:45 ` Thomas Petazzoni via buildroot
2022-02-13 21:00   ` Thomas Petazzoni via buildroot
2022-02-14 21:06 ` Arnout Vandecappelle

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