GCC 4.9 may use 64-byte (0x40) alignment for data sections.

Therefore we use a different link script for GCC 4.9. The only
difference from the gcc4.4-ld-script is the alignment for data
sections.

When using the GCC48 toolchain with GCC 4.9, this error would be
encountered by GenFw:
> GenFw: ERROR 3000: Invalid
>   Unsupported section alignment.

Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Jordan Justen <jordan.l.jus...@intel.com>
Cc: edk2-buildtools-de...@lists.sourceforge.net
Cc: Alain Kalker <a.c.kal...@gmail.com>
Cc: Keshav Amburay <the.ridikulus....@gmail.com>
Cc: "Mendyke, DanielX" <danielx.mend...@intel.com>
---

These patches are available in the gcc-4.9 branch of:
https://github.com/jljusten/edk2.git

 BaseTools/Conf/tools_def.template  | 145 +++++++++++++++++++++++++++++++++++++
 BaseTools/Scripts/gcc4.9-ld-script |  44 +++++++++++
 2 files changed, 189 insertions(+)
 create mode 100644 BaseTools/Scripts/gcc4.9-ld-script

diff --git a/BaseTools/Conf/tools_def.template 
b/BaseTools/Conf/tools_def.template
index f99ddf6..f9e1e6c 100644
--- a/BaseTools/Conf/tools_def.template
+++ b/BaseTools/Conf/tools_def.template
@@ -162,6 +162,9 @@ DEFINE GCC47_X64_PREFIX        = /usr/bin/
 DEFINE GCC48_IA32_PREFIX       = /usr/bin/
 DEFINE GCC48_X64_PREFIX        = /usr/bin/
 
+DEFINE GCC49_IA32_PREFIX       = /usr/bin/
+DEFINE GCC49_X64_PREFIX        = /usr/bin/
+
 DEFINE UNIX_IASL_BIN           = ENV(IASL_PREFIX)iasl
 DEFINE WIN_ASL_BIN_DIR         = C:\ASL
 DEFINE WIN_IASL_BIN            = DEF(WIN_ASL_BIN_DIR)\iasl.exe
@@ -307,6 +310,12 @@ DEFINE SOURCERY_CYGWIN_TOOLS = /cygdrive/c/Program 
Files/CodeSourcery/Sourcery G
 #                             Required to build platforms or ACPI tables:
 #                               Intel(r) ACPI Compiler v20101013 from
 #                               
http://www.acpica.org/downloads/previous_releases.php
+#   GCC49       -Linux-  Requires:
+#                             GCC 4.9
+#                        Optional:
+#                             Required to build platforms or ACPI tables:
+#                               Intel(r) ACPI Compiler v20101013 from
+#                               
http://www.acpica.org/downloads/previous_releases.php
 #   ELFGCC      -Linux-  Requires:
 #                             GCC(this tool chain uses whatever version of gcc 
and binutils that is installed in /usr/bin)
 #                        Optional:
@@ -3216,6 +3225,22 @@ DEFINE GCC48_AARCH64_DLINK_FLAGS     = 
DEF(GCC_ARM_AARCH64_DLINK_COMMON)
 DEFINE GCC48_ARM_ASLDLINK_FLAGS      = DEF(GCC47_ARM_ASLDLINK_FLAGS)
 DEFINE GCC48_AARCH64_ASLDLINK_FLAGS  = DEF(GCC_ARM_AARCH64_ASLDLINK_FLAGS)
 
+DEFINE GCC49_IA32_CC_FLAGS           = DEF(GCC48_IA32_CC_FLAGS)
+DEFINE GCC49_X64_CC_FLAGS            = DEF(GCC48_X64_CC_FLAGS)
+DEFINE GCC49_IA32_X64_DLINK_COMMON   = -nostdlib -n -q --gc-sections 
--script=$(EDK_TOOLS_PATH)/Scripts/gcc4.9-ld-script
+DEFINE GCC49_IA32_X64_ASLDLINK_FLAGS = DEF(GCC49_IA32_X64_DLINK_COMMON) 
--entry ReferenceAcpiTable -u ReferenceAcpiTable
+DEFINE GCC49_IA32_X64_DLINK_FLAGS    = DEF(GCC49_IA32_X64_DLINK_COMMON) 
--entry $(IMAGE_ENTRY_POINT) -u $(IMAGE_ENTRY_POINT) -Map 
$(DEST_DIR_DEBUG)/$(BASE_NAME).map
+DEFINE GCC49_X64_DLINK_FLAGS         = DEF(GCC49_IA32_X64_DLINK_FLAGS)  
-melf_x86_64 --oformat=elf64-x86-64
+DEFINE GCC49_ASM_FLAGS               = DEF(GCC48_ASM_FLAGS)
+DEFINE GCC49_ARM_ASM_FLAGS           = DEF(GCC48_ARM_ASM_FLAGS)
+DEFINE GCC49_AARCH64_ASM_FLAGS       = DEF(GCC48_AARCH64_ASM_FLAGS)
+DEFINE GCC49_ARM_CC_FLAGS            = DEF(GCC48_ARM_CC_FLAGS)
+DEFINE GCC49_AARCH64_CC_FLAGS        = DEF(GCC48_AARCH64_CC_FLAGS)
+DEFINE GCC49_ARM_DLINK_FLAGS         = DEF(GCC48_ARM_DLINK_FLAGS)
+DEFINE GCC49_AARCH64_DLINK_FLAGS     = DEF(GCC_ARM_AARCH64_DLINK_COMMON)
+DEFINE GCC49_ARM_ASLDLINK_FLAGS      = DEF(GCC48_ARM_ASLDLINK_FLAGS)
+DEFINE GCC49_AARCH64_ASLDLINK_FLAGS  = DEF(GCC_ARM_AARCH64_ASLDLINK_FLAGS)
+
 
####################################################################################
 #
 # Unix GCC And Intel Linux ACPI Compiler
@@ -3769,6 +3794,126 @@ RELEASE_GCC48_AARCH64_CC_FLAGS   = 
DEF(GCC48_AARCH64_CC_FLAGS) -Wno-unused-but-s
 
 
####################################################################################
 #
+# GCC 4.9 - This configuration is used to compile under Linux to produce
+#           PE/COFF binaries using GCC 4.9.
+#
+####################################################################################
+*_GCC49_*_*_FAMILY               = GCC
+
+*_GCC49_*_MAKE_PATH                    = make
+*_GCC49_*_ASL_PATH                     = DEF(UNIX_IASL_BIN)
+
+*_GCC49_*_PP_FLAGS                     = DEF(GCC_PP_FLAGS)
+*_GCC49_*_ASLPP_FLAGS                  = DEF(GCC_ASLPP_FLAGS)
+*_GCC49_*_ASLCC_FLAGS                  = DEF(GCC_ASLCC_FLAGS)
+*_GCC49_*_VFRPP_FLAGS                  = DEF(GCC_VFRPP_FLAGS)
+*_GCC49_*_APP_FLAGS                    =
+*_GCC49_*_ASL_FLAGS                    = DEF(IASL_FLAGS)
+*_GCC49_*_ASL_OUTFLAGS                 = DEF(IASL_OUTFLAGS)
+
+##################
+# GCC49 IA32 definitions
+##################
+*_GCC49_IA32_OBJCOPY_PATH         = DEF(GCC49_IA32_PREFIX)objcopy
+*_GCC49_IA32_CC_PATH              = DEF(GCC49_IA32_PREFIX)gcc
+*_GCC49_IA32_SLINK_PATH           = DEF(GCC49_IA32_PREFIX)ar
+*_GCC49_IA32_DLINK_PATH           = DEF(GCC49_IA32_PREFIX)ld
+*_GCC49_IA32_ASLDLINK_PATH        = DEF(GCC49_IA32_PREFIX)ld
+*_GCC49_IA32_ASM_PATH             = DEF(GCC49_IA32_PREFIX)gcc
+*_GCC49_IA32_PP_PATH              = DEF(GCC49_IA32_PREFIX)gcc
+*_GCC49_IA32_VFRPP_PATH           = DEF(GCC49_IA32_PREFIX)gcc
+*_GCC49_IA32_ASLCC_PATH           = DEF(GCC49_IA32_PREFIX)gcc
+*_GCC49_IA32_ASLPP_PATH           = DEF(GCC49_IA32_PREFIX)gcc
+*_GCC49_IA32_RC_PATH              = DEF(GCC49_IA32_PREFIX)objcopy
+
+*_GCC49_IA32_ASLCC_FLAGS          = DEF(GCC_ASLCC_FLAGS) -m32
+*_GCC49_IA32_ASLDLINK_FLAGS       = DEF(GCC49_IA32_X64_ASLDLINK_FLAGS) -m 
elf_i386
+*_GCC49_IA32_ASM_FLAGS            = DEF(GCC49_ASM_FLAGS) -m32 -march=i386
+*_GCC49_IA32_CC_FLAGS             = DEF(GCC49_IA32_CC_FLAGS) -Os
+*_GCC49_IA32_DLINK_FLAGS          = DEF(GCC49_IA32_X64_DLINK_FLAGS) -m 
elf_i386 --oformat=elf32-i386
+*_GCC49_IA32_RC_FLAGS             = DEF(GCC_IA32_RC_FLAGS)
+*_GCC49_IA32_OBJCOPY_FLAGS        = 
+
+##################
+# GCC49 X64 definitions
+##################
+*_GCC49_X64_OBJCOPY_PATH         = DEF(GCC49_X64_PREFIX)objcopy
+*_GCC49_X64_CC_PATH              = DEF(GCC49_X64_PREFIX)gcc
+*_GCC49_X64_SLINK_PATH           = DEF(GCC49_X64_PREFIX)ar
+*_GCC49_X64_DLINK_PATH           = DEF(GCC49_X64_PREFIX)ld
+*_GCC49_X64_ASLDLINK_PATH        = DEF(GCC49_X64_PREFIX)ld
+*_GCC49_X64_ASM_PATH             = DEF(GCC49_X64_PREFIX)gcc
+*_GCC49_X64_PP_PATH              = DEF(GCC49_X64_PREFIX)gcc
+*_GCC49_X64_VFRPP_PATH           = DEF(GCC49_X64_PREFIX)gcc
+*_GCC49_X64_ASLCC_PATH           = DEF(GCC49_X64_PREFIX)gcc
+*_GCC49_X64_ASLPP_PATH           = DEF(GCC49_X64_PREFIX)gcc
+*_GCC49_X64_RC_PATH              = DEF(GCC49_X64_PREFIX)objcopy
+
+*_GCC49_X64_ASLCC_FLAGS          = DEF(GCC_ASLCC_FLAGS) -m64
+*_GCC49_X64_ASLDLINK_FLAGS       = DEF(GCC49_IA32_X64_ASLDLINK_FLAGS) -m 
elf_x86_64
+*_GCC49_X64_ASM_FLAGS            = DEF(GCC49_ASM_FLAGS) -m64
+*_GCC49_X64_CC_FLAGS             = DEF(GCC49_X64_CC_FLAGS)
+*_GCC49_X64_DLINK_FLAGS          = DEF(GCC49_X64_DLINK_FLAGS)
+*_GCC49_X64_RC_FLAGS             = DEF(GCC_X64_RC_FLAGS)
+*_GCC49_X64_OBJCOPY_FLAGS        = 
+
+##################
+# GCC49 ARM definitions
+##################
+*_GCC49_ARM_CC_PATH              = ENV(GCC49_ARM_PREFIX)gcc
+*_GCC49_ARM_SLINK_PATH           = ENV(GCC49_ARM_PREFIX)ar
+*_GCC49_ARM_DLINK_PATH           = ENV(GCC49_ARM_PREFIX)ld
+*_GCC49_ARM_ASLDLINK_PATH        = ENV(GCC49_ARM_PREFIX)ld
+*_GCC49_ARM_ASM_PATH             = ENV(GCC49_ARM_PREFIX)gcc
+*_GCC49_ARM_PP_PATH              = ENV(GCC49_ARM_PREFIX)gcc
+*_GCC49_ARM_VFRPP_PATH           = ENV(GCC49_ARM_PREFIX)gcc
+*_GCC49_ARM_ASLCC_PATH           = ENV(GCC49_ARM_PREFIX)gcc
+*_GCC49_ARM_ASLPP_PATH           = ENV(GCC49_ARM_PREFIX)gcc
+*_GCC49_ARM_RC_PATH              = ENV(GCC49_ARM_PREFIX)objcopy
+
+*_GCC49_ARM_ARCHCC_FLAGS         = -mthumb
+*_GCC49_ARM_PLATFORM_FLAGS       = -march=armv7-a
+
+*_GCC49_ARM_ASLCC_FLAGS          = DEF(GCC_ASLCC_FLAGS)
+*_GCC49_ARM_ASLDLINK_FLAGS       = DEF(GCC49_ARM_ASLDLINK_FLAGS)
+*_GCC49_ARM_ASM_FLAGS            = DEF(GCC49_ARM_ASM_FLAGS)
+*_GCC49_ARM_DLINK_FLAGS          = DEF(GCC49_ARM_DLINK_FLAGS)
+*_GCC49_ARM_PLATFORM_FLAGS       = -march=armv7-a
+*_GCC49_ARM_PP_FLAGS             = $(ARCHCC_FLAGS) $(PLATFORM_FLAGS) 
DEF(GCC_PP_FLAGS)
+*_GCC49_ARM_RC_FLAGS             = DEF(GCC_ARM_RC_FLAGS)
+*_GCC49_ARM_VFRPP_FLAGS          = $(ARCHCC_FLAGS) $(PLATFORM_FLAGS) 
DEF(GCC_VFRPP_FLAGS)
+
+  DEBUG_GCC49_ARM_CC_FLAGS       = DEF(GCC49_ARM_CC_FLAGS) -O0
+RELEASE_GCC49_ARM_CC_FLAGS       = DEF(GCC49_ARM_CC_FLAGS) 
-Wno-unused-but-set-variable
+
+##################
+# GCC49 AARCH64 definitions
+##################
+*_GCC49_AARCH64_CC_PATH          = ENV(GCC49_AARCH64_PREFIX)gcc
+*_GCC49_AARCH64_SLINK_PATH       = ENV(GCC49_AARCH64_PREFIX)ar
+*_GCC49_AARCH64_DLINK_PATH       = ENV(GCC49_AARCH64_PREFIX)ld
+*_GCC49_AARCH64_ASLDLINK_PATH    = ENV(GCC49_AARCH64_PREFIX)ld
+*_GCC49_AARCH64_ASM_PATH         = ENV(GCC49_AARCH64_PREFIX)gcc
+*_GCC49_AARCH64_PP_PATH          = ENV(GCC49_AARCH64_PREFIX)gcc
+*_GCC49_AARCH64_VFRPP_PATH       = ENV(GCC49_AARCH64_PREFIX)gcc
+*_GCC49_AARCH64_ASLCC_PATH       = ENV(GCC49_AARCH64_PREFIX)gcc
+*_GCC49_AARCH64_ASLPP_PATH       = ENV(GCC49_AARCH64_PREFIX)gcc
+*_GCC49_AARCH64_RC_PATH          = ENV(GCC49_AARCH64_PREFIX)objcopy
+
+*_GCC49_AARCH64_ASLCC_FLAGS      = DEF(GCC_ASLCC_FLAGS)
+*_GCC49_AARCH64_ASLDLINK_FLAGS   = DEF(GCC49_AARCH64_ASLDLINK_FLAGS)
+*_GCC49_AARCH64_ASM_FLAGS        = DEF(GCC49_AARCH64_ASM_FLAGS)
+*_GCC49_AARCH64_DLINK_FLAGS      = DEF(GCC49_AARCH64_DLINK_FLAGS)
+*_GCC49_AARCH64_PLATFORM_FLAGS   =
+*_GCC49_AARCH64_PP_FLAGS         = $(ARCHCC_FLAGS) $(PLATFORM_FLAGS) 
DEF(GCC_PP_FLAGS)
+*_GCC49_AARCH64_RC_FLAGS         = DEF(GCC_AARCH64_RC_FLAGS)
+*_GCC49_AARCH64_VFRPP_FLAGS      = $(ARCHCC_FLAGS) $(PLATFORM_FLAGS) 
DEF(GCC_VFRPP_FLAGS)
+
+  DEBUG_GCC49_AARCH64_CC_FLAGS   = DEF(GCC49_AARCH64_CC_FLAGS) -O0
+RELEASE_GCC49_AARCH64_CC_FLAGS   = DEF(GCC49_AARCH64_CC_FLAGS) 
-Wno-unused-but-set-variable
+
+####################################################################################
+#
 # Cygwin GCC And Intel ACPI Compiler
 #
 
####################################################################################
diff --git a/BaseTools/Scripts/gcc4.9-ld-script 
b/BaseTools/Scripts/gcc4.9-ld-script
new file mode 100644
index 0000000..b692328
--- /dev/null
+++ b/BaseTools/Scripts/gcc4.9-ld-script
@@ -0,0 +1,44 @@
+/* OUTPUT_FORMAT(efi-bsdrv-x86_64) */
+SECTIONS
+{
+  /* . = 0 + SIZEOF_HEADERS; */
+  . = 0x280;
+  .text ALIGN(0x20) :
+  {
+    *(.text .stub .text.* .gnu.linkonce.t.*)
+    . = ALIGN(0x20);
+  } =0x90909090
+  .data ALIGN(0x40) :
+  {
+    *(
+      .rodata .rodata.* .gnu.linkonce.r.*
+      .data .data.* .gnu.linkonce.d.*
+      .bss .bss.*
+      *COM*
+    )
+    . = ALIGN(0x20);
+  }
+  .eh_frame ALIGN(0x20) :
+  {
+    KEEP (*(.eh_frame))
+  }
+  .got ALIGN(0x20) :
+  {
+    *(.got .got.*)
+    . = ALIGN(0x20);
+  }
+  .rela ALIGN(0x20) :
+  {
+    *(.rela .rela.*)
+  }
+  /DISCARD/ : {
+    *(.note.GNU-stack) *(.gnu_debuglink)
+    *(.interp)
+    *(.dynsym)
+    *(.dynstr)
+    *(.dynamic)
+    *(.hash)
+    *(.comment)
+  }
+}
+
-- 
2.0.1


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