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09f214528c
It allows build both glibc and tests with lld (Since lld does not support R_RISCV_ALIGN linker relaxation). Checked with a build for riscv32-linux-gnu-rv32imafdc-ilp32d and riscv64-linux-gnu-rv64imafdc-lp64d. Reviewed-by: H.J. Lu <hjl.tools@gmail.com> Reviewed-by: Fangrui Song <maskray@google.com>
21 lines
632 B
Plaintext
21 lines
632 B
Plaintext
GLIBC_PROVIDES dnl See aclocal.m4 in the top level source directory.
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# Local configure fragment for sysdeps/riscv/elf.
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AC_DEFINE(PI_STATIC_AND_HIDDEN)
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# Check if static linker supports R_RISCV_ALIGN
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AC_CACHE_CHECK([for R_RISCV_ALIGN linker relaxation support], [libc_cv_riscv_r_align],[dnl
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cat > conftest.S <<EOF
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.align 3
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foo:
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li a0,42
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ret
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EOF
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libc_cv_riscv_r_align=no
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if AC_TRY_COMMAND([${CC-cc} $CFLAGS $CPPFLAGS $LDFLAGS -nostdlib -nostartfiles $no_ssp -shared -fPIC -o contests.o conftest.S])
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then
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libc_cv_riscv_r_align=yes
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fi
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rm -rf conftest.*])
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LIBC_CONFIG_VAR([riscv-r-align], [$libc_cv_riscv_r_align])
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