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| author | Richard Cheng <icheng@nvidia.com> | 2026-07-21 16:40:09 +0800 |
|---|---|---|
| committer | Dave Jiang <dave.jiang@intel.com> | 2026-08-31 09:40:34 -0700 |
| commit | 2c73cda8908f1275b0ecf81ae540a3bc2a90fc30 (patch) | |
| tree | 0803b31a26752ee3910600a73120588dd884cc14 | |
| parent | cee9395acd8043be0644b25c34bfa86623f2b935 (diff) | |
| download | linux-next-2c73cda8908f1275b0ecf81ae540a3bc2a90fc30.tar.gz linux-next-2c73cda8908f1275b0ecf81ae540a3bc2a90fc30.zip | |
tools/testing/cxl: Don't wrap cxl_core's own exported symbols
Building cxl_test with LLVM=1 (ld.lld) fails in modpost:
"""
cxl_core: .export_symbol section references '__wrap_...', but it
does not seem to be an export symbol
"""
cxl_test --wraps 6 symbols that cxl_core both defines and exports.
GNU ld only wraps undefined references, but ld.lld also redirects
references to defined symbols, so cxl_core's own EXPORT_SYMBOL entries
get rewritten to __wrap_* and modpost rejects them.
cxl_core never calls these symbols, so wrap them only in the caller
modules via LDFLAGS_<module>.o instead of the global ldflags-y.
Signed-off-by: Richard Cheng <icheng@nvidia.com>
Reviewed-by: Dave Jiang <dave.jiang@intel.com>
Reviewed-by: Alison Schofield <alison.schofield@intel.com>
Tested-by: Shaikh Kamaluddin <shaikhkamal2012@gmail.com>
Link: https://patch.msgid.link/20260721084009.38100-1-icheng@nvidia.com
Signed-off-by: Dave Jiang <dave.jiang@intel.com>
| -rw-r--r-- | tools/testing/cxl/Kbuild | 16 |
1 files changed, 10 insertions, 6 deletions
diff --git a/tools/testing/cxl/Kbuild b/tools/testing/cxl/Kbuild index 2be1df80fcc9..e49ce644b4b1 100644 --- a/tools/testing/cxl/Kbuild +++ b/tools/testing/cxl/Kbuild @@ -4,16 +4,20 @@ ldflags-y += --wrap=is_acpi_device_node ldflags-y += --wrap=acpi_evaluate_integer ldflags-y += --wrap=acpi_pci_find_root ldflags-y += --wrap=nvdimm_bus_register -ldflags-y += --wrap=cxl_await_media_ready -ldflags-y += --wrap=devm_cxl_add_rch_dport -ldflags-y += --wrap=cxl_endpoint_parse_cdat -ldflags-y += --wrap=devm_cxl_endpoint_decoders_setup ldflags-y += --wrap=hmat_get_extended_linear_cache_size -ldflags-y += --wrap=devm_cxl_add_dport_by_dev -ldflags-y += --wrap=devm_cxl_switch_port_decoders_setup ldflags-y += --wrap=walk_hmem_resources ldflags-y += --wrap=region_intersects ldflags-y += --wrap=region_intersects_soft_reserve +wrap_cxl_core := --wrap=cxl_await_media_ready +wrap_cxl_core += --wrap=devm_cxl_add_rch_dport +wrap_cxl_core += --wrap=devm_cxl_add_dport_by_dev +wrap_cxl_core += --wrap=devm_cxl_switch_port_decoders_setup +wrap_cxl_core += --wrap=devm_cxl_endpoint_decoders_setup +wrap_cxl_core += --wrap=cxl_endpoint_parse_cdat +LDFLAGS_cxl_acpi.o += $(wrap_cxl_core) +LDFLAGS_cxl_pmem.o += $(wrap_cxl_core) +LDFLAGS_cxl_port.o += $(wrap_cxl_core) +LDFLAGS_cxl_mem.o += $(wrap_cxl_core) DRIVERS := ../../../drivers DAX_HMEM_SRC := $(DRIVERS)/dax/hmem |