u-boot.git/arch/sandbox/config.mk, branch main

Makefile: use --output-target instead of --target

2025-12-10T15:06:13Z

The objcopy man-page teaches: --target=bfdname Use bfdname as the object format for both the input and the output file This implies for --target=efi-app-x86_64 that the input file would have to be an EFI app. Objcopy in binutils 2.45 checks this more strictly than previous versions and refuses to accept an ELF file as input with --target=efi-app-x86_64. Replace --target by --output-target for building sandbox and x86 EFI binaries. Signed-off-by: Heinrich Schuchardt Reviewed-by: Tom Rini

sandbox: solve undefined reference to pthread_kill symbol

2025-06-13T22:57:02Z

This patch is to solve the sandbox building error: $ make O=build-sandbox -s sandbox_defconfig $ make O=build-sandbox -s -j2 /usr/bin/ld: /tmp/u-boot.27rzOu.ltrans58.ltrans.o: undefined reference to symbol 'pthread_kill@@GLIBC_2.2.5' /usr/bin/ld: /lib/x86_64-linux-gnu/libpthread.so.0: error adding symbols: DSO missing from command line collect2: error: ld returned 1 exit status [...] Fixes: b989f9ed9fe1 ("test: lib: add initjmp() test") Signed-off-by: Raymond Mao Reviewed-by: Jerome Forissier Tested-by: Patrice Chotard

Makefile: Make sure all linker input objects exist

2025-01-18T14:28:16Z

In case the build system builds a directory with empty Makefile, one which does not contain any obj-y entries, the build fails to link due to missing built-in.o . This happens because of this part of scripts/Makefile.build 81 ifneq ($(strip $(obj-y) $(obj-m) $(obj-) $(subdir-m) $(lib-target)),) 82 builtin-target := $(obj)/built-in.o 83 endif which does not assign builtin-target in case obj-y is empty. The built-in target is then not built at all, and built-in.o is not generated by this part of scripts/Makefile.build 325 ifdef builtin-target 326 quiet_cmd_link_o_target = AR $@ 327 # If the list of objects to link is empty, just create an empty built-in.o ... 335 targets += $(builtin-target) 336 endif # builtin-target This is the correct behavior. The final link however expects the built-in.o to exist in every directory included in the build, even in those where the aforementioned code skipped generation of built-in.o . Make sure the built-in.o does exist for every directory used in final link simply by doing touch on every built-in.o used for the link, which will create empty built-in.o in case any built-in.o is missing. A possible alternative fix is the always define the builtin-target and always generate built-in.o . Signed-off-by: Marek Vasut Tested-by: Quentin Schulz

efi_loader: move HOST_ARCH to version_autogenerated.h

2024-04-08T11:04:48Z

efi_default_filename.h requires HOST_ARCH to be defined. Up to now we defined it via a CFLAGS. This does not scale. Add the symbol to version_autogenerated.h instead. Signed-off-by: Heinrich Schuchardt Acked-by: Ilias Apalodimas

sandbox: eliminate unused functions from binaries

2023-11-03T02:38:01Z

The sandbox should closely mimic other architectures. Place each function or data in a separate section and let the linker eliminate unused ones. This will reduce the binary size. In the linker script mark that u_boot_sandbox_getopt are to be kept. Signed-off-by: Heinrich Schuchardt Reviewed-by: Tom Rini

sandbox: Drop reference to CONFIG_ARCH_DEVICE_TREE

2023-02-07T19:33:47Z

This is not used anywhere. Drop it. Signed-off-by: Simon Glass

sandbox: Rework how SDL is enabled / disabled

2022-12-05T21:11:50Z

Given that we can use Kconfig logic directly to see if we have a program available on the host or not, change from passing NO_SDL to instead controlling CONFIG_SANDBOX_SDL in Kconfig directly. Introduce CONFIG_HOST_HAS_SDL as the way to test for sdl2-config and default CONFIG_SANDBOX_SDL on if we have that, or not. Cc: Simon Glass Signed-off-by: Tom Rini Reviewed-by: Simon Glass

sandbox: Add libfuzzer integration

2022-06-23T16:58:18Z

Add an implementation of LLVMFuzzerTestOneInput() that starts the sandbox on a secondary thread and exposes a function to synchronize the generation of fuzzing inputs with their consumption by the sandbox. Signed-off-by: Andrew Scull Reviewed-by: Simon Glass

sandbox: Add support for Address Sanitizer

2022-06-23T16:58:18Z

Add CONFIG_ASAN to build with the Address Sanitizer. This only works with the sandbox so the config is likewise dependent. The resulting executable will have ASAN instrumentation, including the leak detector that can be disabled with the ASAN_OPTIONS environment variable: ASAN_OPTIONS=detect_leaks=0 ./u-boot Since u-boot uses its own dlmalloc, dynamic allocations aren't automatically instrumented, but stack variables and globals are. Instrumentation could be added to dlmalloc to poison and unpoison memory as it is allocated and deallocated, and to introduce redzones between allocations. Alternatively, the sandbox may be able to play games with the system allocator and somehow still keep the required memory abstraction. No effort to address dynamic allocation is made by this patch. The config is not yet enabled for any targets by default. Signed-off-by: Andrew Scull Reviewed-by: Simon Glass

linker_lists: Rename sections to remove . prefix

2022-06-23T16:58:18Z

Rename the sections used to implement linker lists so they begin with '__u_boot_list' rather than '.u_boot_list'. The double underscore at the start is still distinct from the single underscore used by the symbol names. Having a '.' in the section names conflicts with clang's ASAN instrumentation which tries to add redzones between the linker list elements, causing expected accesses to fail. However, clang doesn't try to add redzones to user sections, which are names with all alphanumeric and underscore characters. Signed-off-by: Andrew Scull Reviewed-by: Simon Glass