u-boot.git/arch/blackfin, branch v2011.03

Introduce a new linker flag LDFLAGS_FINAL

2011-03-22T22:32:06Z

commit 8aba9dceebb14144e07d19593111ee3a999c37fc Divides variable of linker flags to LDFLAGS-u-boot and LDFLAGS breaks the usage of --gc-section to build nand_spl. We still need linker option --gc-section for every uboot image, not only the main one. LDFLAGS_FINAL passes the --gc-sections to each uboot image. To get the proper linker flags, we use LDFLAGS and LDFLAGS_FINAL to replace PLATFORM_LDFLAGS in the Makefile of each nand_spl board. Signed-off-by: Scott Wood Signed-off-by: Haiying Wang

Divides variable of linker flags to LDFLAGS-u-boot and LDFLAGS

2011-01-25T21:22:30Z

Linker needs to use the proper endian/bfd flags even when doing partial linking. LDFLAGS_u-boot sets linker option which is called it when U-boot is built (u-boot final). LDFLAGS sets necessary option by partial linking (use in cmd_link_o_target). CC: Mike Frysinger Signed-off-by: Nobuhiro Iwamatsu

Move DECLARE_GLOBAL_DATA_PTR to file scope

2010-12-21T10:33:36Z

It can be optimised out by the compiler otherwise resulting in obscure errors like a board not booting. This has been documented in README since 2006 when these were first fixed up for GCC 4.x. Signed-off-by: John Rigby Fix some additional places. Signed-off-by: Wolfgang Denk Acked-By: Albert ARIBAUD

Blackfin: drop initcode.o from combined object

2010-11-20T00:17:57Z

We explicitly link in the initcode.o in the Blackfin linker script, so there is no need to merge it into the main common object for the linker to pull in itself. This also fixes duplicate symbol errors with the new partial linking logic. Signed-off-by: Mike Frysinger

Blackfin: make sure bss len is multiple of 4 bytes

2010-11-18T09:38:19Z

The Blackfin on-chip BootROM requires that fill operations (which is used for the bss) be aligned to 4 bytes (base addr and total len). Plus, the Blackfin early init asm code assumes the same thing. So rather than making things work for no real gain, make sure the bss len is padded to 4 bytes in the linker script. Signed-off-by: Mike Frysinger

Blackfin: stick ins/outs funcs into their own .text section

2010-11-18T09:38:19Z

This lets the linker garbage collect these functions when they aren't actually used by placing them into the standard .text. section. Signed-off-by: Mike Frysinger

Switch from archive libraries to partial linking

2010-11-17T20:02:18Z

Before this commit, weak symbols were not overridden by non-weak symbols found in archive libraries when linking with recent versions of binutils. As stated in the System V ABI, "the link editor does not extract archive members to resolve undefined weak symbols". This commit changes all Makefiles to use partial linking (ld -r) instead of creating library archives, which forces all symbols to participate in linking, allowing non-weak symbols to override weak symbols as intended. This approach is also used by Linux, from which the gmake function cmd_link_o_target (defined in config.mk and used in all Makefiles) is inspired. The name of each former library archive is preserved except for extensions which change from ".a" to ".o". This commit updates references accordingly where needed, in particular in some linker scripts. This commit reveals board configurations that exclude some features but include source files that depend these disabled features in the build, resulting in undefined symbols. Known such cases include: - disabling CMD_NET but not CMD_NFS; - enabling CONFIG_OF_LIBFDT but not CONFIG_QE. Signed-off-by: Sebastien Carlier

Merge branch 'master' of git://git.denx.de/u-boot-blackfin

2010-10-29T19:46:08Z

Replace CONFIG_RELOC_FIXUP_WORKS by CONFIG_NEEDS_MANUAL_RELOC

2010-10-29T19:32:07Z

By now, the majority of architectures have working relocation support, so the few remaining architectures have become exceptions. To make this more obvious, we make working relocation now the default case, and flag the remaining cases with CONFIG_NEEDS_MANUAL_RELOC. Signed-off-by: Wolfgang Denk Tested-by: Heiko Schocher Tested-by: Reinhard Meyer

Blackfin: config.mk: drop manual stripping of config vars

2010-10-28T01:18:05Z

Now that the common code takes care of stripping away quotes and such from numeric options, we no longer need to do so ourselves. So drop the custom code we have in the Blackfin config.mk. Signed-off-by: Mike Frysinger