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[libc] Fix missing sysroot path for kernel headers when crosscompiling #99588

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Merged
merged 1 commit into from
Jul 19, 2024
Merged

[libc] Fix missing sysroot path for kernel headers when crosscompiling #99588

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6 changes: 5 additions & 1 deletion libc/cmake/modules/LLVMLibCCompileOptionRules.cmake
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Original file line number Diff line number Diff line change
Expand Up @@ -88,7 +88,11 @@ function(_get_common_compile_options output_var flags)
(LIBC_CC_SUPPORTS_NOSTDLIBINC OR COMPILER_RESOURCE_DIR))
# We use -idirafter to avoid preempting libc's own headers in case the
# directory (e.g. /usr/include) contains other headers.
list(APPEND compile_options "-idirafter${LIBC_KERNEL_HEADERS}")
if(CMAKE_CROSSCOMPILING)
list(APPEND compile_options "-idirafter=${LIBC_KERNEL_HEADERS}")
else()
list(APPEND compile_options "-idirafter${LIBC_KERNEL_HEADERS}")
endif()
endif()
endif()

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2 changes: 1 addition & 1 deletion libc/src/time/linux/nanosleep.cpp
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Expand Up @@ -7,7 +7,7 @@
//===----------------------------------------------------------------------===//

#include "src/time/nanosleep.h"

#include "hdr/time_macros.h"
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This change seems unrelated, can you move it to a separate PR?

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I forgot to mention it in the commit message, but once we fix the sysroot path, the compilation of the file fails in rv32 due to the missing definition of CLOCK_REALTIME.

I'll update the commit message when squashing and merging

#include "src/__support/OSUtil/syscall.h" // For syscall functions.
#include "src/__support/common.h"
#include "src/__support/macros/config.h"
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