diff options
| author | Ard Biesheuvel <ard.biesheuvel@linaro.org> | 2015-08-03 08:22:28 +0000 |
|---|---|---|
| committer | abiesheuvel <abiesheuvel@Edk2> | 2015-08-03 08:22:28 +0000 |
| commit | efe690cab3fb5c5d710dec49c472df09eaaaa5da (patch) | |
| tree | 9782dc4405caf8746dbd8b63d8595718751c7638 /BaseTools | |
| parent | c28a4ab663ec3019bef5316ec569c0791e40e924 (diff) | |
| download | edk2-platforms-efe690cab3fb5c5d710dec49c472df09eaaaa5da.tar.xz | |
BaseTools GCC: add unified GCC linker script for all archs and versions
This unifies all GCC linker scripts into a single parametrised GCC
linker script that can be used for all GCC versions and architectures.
The two parameters that can be set on the linker command line are:
- PECOFF_HEADER_SIZE, this is a build time property of GenFw, but
its value is different between 32-bit and 64-bit;
- common-page-size, this can be set using -z on the ld command line,
and controls the value of the COMMONPAGESIZE constant when used in
a linker script. This value is used for the minimum section alignment.
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Reviewed-by: Jordan Justen <jordan.l.justen@intel.com>
Tested-by: Liming Gao <liming.gao@intel.com>
Tested-by: Leif Lindholm <leif.lindholm@linaro.org>
git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@18135 6f19259b-4bc3-4df7-8a09-765794883524
Diffstat (limited to 'BaseTools')
| -rw-r--r-- | BaseTools/Scripts/GccBase.lds | 63 |
1 files changed, 63 insertions, 0 deletions
diff --git a/BaseTools/Scripts/GccBase.lds b/BaseTools/Scripts/GccBase.lds new file mode 100644 index 0000000000..0f0210e407 --- /dev/null +++ b/BaseTools/Scripts/GccBase.lds @@ -0,0 +1,63 @@ +/** @file
+
+ Unified linker script for GCC based builds
+
+ Copyright (c) 2010 - 2015, Intel Corporation. All rights reserved.<BR>
+ Copyright (c) 2015, Linaro Ltd. All rights reserved.<BR>
+
+ This program and the accompanying materials are licensed and made available under
+ the terms and conditions of the BSD License that accompanies this distribution.
+ The full text of the license may be found at
+ http://opensource.org/licenses/bsd-license.php.
+
+ THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
+ WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
+
+**/
+
+SECTIONS {
+
+ /*
+ * The PE/COFF binary consists of DOS and PE/COFF headers, and a sequence of
+ * section headers adding up to PECOFF_HEADER_SIZE bytes (which differs
+ * between 32-bit and 64-bit builds). The actual start of the .text section
+ * will be rounded up based on its actual alignment.
+ */
+ . = PECOFF_HEADER_SIZE;
+
+ .text : ALIGN(CONSTANT(COMMONPAGESIZE)) {
+ *(.text .text.* .stub .gnu.linkonce.t.*)
+ *(.rodata .rodata.* .gnu.linkonce.r.*)
+ *(.got .got.*)
+ }
+
+ /*
+ * The alignment of the .data section should be less than or equal to the
+ * alignment of the .text section. This ensures that the relative offset
+ * between these sections is the same in the ELF and the PE/COFF versions of
+ * this binary.
+ */
+ .data : ALIGN(CONSTANT(COMMONPAGESIZE)) {
+ *(.data .data.* .gnu.linkonce.d.*)
+ *(.bss .bss.* *COM*)
+ }
+
+ .eh_frame ALIGN(CONSTANT(COMMONPAGESIZE)) : {
+ KEEP (*(.eh_frame))
+ }
+
+ .rela ALIGN(CONSTANT(COMMONPAGESIZE)) : {
+ *(.rela .rela.*)
+ }
+
+ /DISCARD/ : {
+ *(.note.GNU-stack)
+ *(.gnu_debuglink)
+ *(.interp)
+ *(.dynsym)
+ *(.dynstr)
+ *(.dynamic)
+ *(.hash)
+ *(.comment)
+ }
+}
|