u-boot.git/Makefile, branch v2021.07-rc5

Prepare v2021.07-rc5

2021-06-28T19:38:55Z

Signed-off-by: Tom Rini

Makefile: Adjust indention of GENENV quiet output

2021-06-22T18:01:22Z

The column width for a command name is 8. Signed-off-by: Jan Kiszka

Prepare v2021.07-rc4

2021-06-07T13:26:39Z

Signed-off-by: Tom Rini

Prepare v2021.07-rc3

2021-05-25T00:53:13Z

Signed-off-by: Tom Rini

build: link with --build-id=none

2021-05-24T18:21:30Z

Some toolchains are compiled so that they pass a --build-id=something parameter to the linker implicitly. This causes U-Boot LTO linking to fail with something like: ld: section .note.gnu.build-id LMA ... overlaps section .text LMA ... because U-Boot's link scripts do not currently handle .note.gnu.build-id section. Fix this by explicitly disabling build-id. Signed-off-by: Marek Behún Reviewed-by: Simon Glass

build: support building with Link Time Optimizations

2021-05-24T18:21:30Z

Add plumbing for building U-Boot with Link Time Optimizations. When building with LTO, $(PLATFORM_LIBS) has to be in --whole-archive / --no-whole-archive group, otherwise some functions declared in assembly may not be resolved and linking may fail. Note: clang may throw away linker list symbols it thinks are unused when compiling with LTO. To force these symbols to be included, we refer to them via the __ADDRESSABLE macro in a C file generated from compiled built-in.o files before linking. Signed-off-by: Marek Behún Reviewed-by: Simon Glass

build: use thin archives instead of incremental linking

2021-05-24T18:21:30Z

Currently we use incremental linking (ld -r) to link several object files from one directory into one built-in.o object file containing the linked code from that directory (and its subdirectories). Linux has, some time ago, moved to thin archives instead. Thin archives are archives (.a) that do not really contain the object files, only references to them. Using thin archives instead of incremental linking - saves disk space - apparently works better with dead code elimination - makes things easier for LTO The third point is the important one for us. With incremental linking there are several options how to do LTO, and that would unnecessarily complicate things. We have to use the --whole-archive/--no-whole-archive linking option instead of --start-group/--end-group, otherwise linking may fail because of unresolved symbols, or the resulting binary will be unusable. We also need to use the P flag for ar, otherwise final linking may fail. Signed-off-by: Marek Behún Reviewed-by: Simon Glass

Makefile, Makefile.spl: cosmetic change

2021-05-24T18:21:30Z

Indent the linking commands so that they look cosmetically better. Signed-off-by: Marek Behún Reviewed-by: Bin Meng

binman: Support packaging U-Boot for scenarios like OF_BOARD or OF_PRIOR_STAGE

2021-05-19T09:01:50Z

For scenarios like OF_BOARD or OF_PRIOR_STAGE, no device tree blob is provided in the U-Boot build phase hence the binman node information is not available. In order to support such use case, a new Kconfig option BINMAN_STANDALONE_FDT is introduced, to tell the build system that a device tree blob containing binman node is explicitly required when using binman to package U-Boot. Signed-off-by: Bin Meng Reviewed-by: Simon Glass

makefile: Pass OpenSBI blob to binman make rules

2021-05-19T09:01:50Z

This updates the make rules to pass OpenSBI blob to binman. Signed-off-by: Bin Meng Reviewed-by: Simon Glass