diff options
| author | Waldemar Brodkorb <wbx@openadk.org> | 2022-02-09 11:48:04 +0100 |
|---|---|---|
| committer | Waldemar Brodkorb <wbx@openadk.org> | 2022-02-09 11:49:05 +0100 |
| commit | 5929ac741467993411e4901cb3abe0517e12536b (patch) | |
| tree | 89726270866029b6323e5548189da4d393ca4ff3 /toolchain | |
| parent | 3b8dd9d35a6f814142c829b096d0df06150672f7 (diff) | |
glibc: x86/x86_64/m68k can be compiled with -Os
Diffstat (limited to 'toolchain')
| -rw-r--r-- | toolchain/binutils/patches/2.37/0001-i386-Allow-GOT32-relocations-against-ABS-symbols.patch | 47 | ||||
| -rw-r--r-- | toolchain/glibc/Makefile | 7 |
2 files changed, 48 insertions, 6 deletions
diff --git a/toolchain/binutils/patches/2.37/0001-i386-Allow-GOT32-relocations-against-ABS-symbols.patch b/toolchain/binutils/patches/2.37/0001-i386-Allow-GOT32-relocations-against-ABS-symbols.patch new file mode 100644 index 000000000..3e2928226 --- /dev/null +++ b/toolchain/binutils/patches/2.37/0001-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; diff --git a/toolchain/glibc/Makefile b/toolchain/glibc/Makefile index ddc9d9f0a..7c35e372b 100644 --- a/toolchain/glibc/Makefile +++ b/toolchain/glibc/Makefile @@ -6,12 +6,7 @@ include ../rules.mk include Makefile.inc include ${ADK_TOPDIR}/mk/buildhlp.mk -# glibc does not compile with Os and CPU specific FLAGS for m68k/x86_64/x86 -ifeq ($(ADK_TARGET_ARCH_X86)$(ADK_TARGET_ARCH_X86_64)$(ADK_TARGET_ARCH_M68K),y) -TARGET_CFLAGS:= -O2 -TARGET_CXXFLAGS:= -O2 -endif - +# glibc does not compile with NEON suggested CFLAGS/CXXFLAGS TARGET_CFLAGS:= $(filter-out -ffast-math,$(TARGET_CFLAGS)) TARGET_CXXFLAGS:= $(filter-out -ffast-math,$(TARGET_CXXFLAGS)) |