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| author |   David S. Miller <davem@davemloft.net> | 2018-10-25 10:36:19 -0700 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2018-10-25 10:36:19 -0700 |
| commit | caf539cd1087f7c36b9c4df271575e9aee49fde5 (patch) | |
| tree | ead06508c7fc91d86b0c0d302abd43110f32a056 /arch/sparc/vdso/vdso.lds.S | |
| parent | Merge branch 'work.tty-ioctl' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs (diff) | |
| download | linux-dev-caf539cd1087f7c36b9c4df271575e9aee49fde5.tar.xz linux-dev-caf539cd1087f7c36b9c4df271575e9aee49fde5.zip | |
sparc: Fix VDSO build with older binutils.
Older versions of bintutils do not allow symbol math across different
segments on sparc:
====================
Assembler messages:
99: Error: operation combines symbols in different segments
====================
This is controlled by whether or not DIFF_EXPR_OK is defined in
gas/config/tc-*.h and for sparc this was not the case until mid-2017.
So we have to patch between %stick and %tick another way.
Do what powerpc does and emit two versions of the relevant functions,
one using %tick and one using %stick, and patch the symbols in the
dynamic symbol table.
Fixes: 2f6c9bf31a0b ("sparc: Improve VDSO instruction patching.")
Reported-by: Meelis Roos <mroos@linux.ee>
Tested-by: Meelis Roos <mroos@linux.ee>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'arch/sparc/vdso/vdso.lds.S')
| -rw-r--r-- | arch/sparc/vdso/vdso.lds.S | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/arch/sparc/vdso/vdso.lds.S b/arch/sparc/vdso/vdso.lds.S index f3caa29a331c..629ab6900df7 100644 --- a/arch/sparc/vdso/vdso.lds.S +++ b/arch/sparc/vdso/vdso.lds.S @@ -18,8 +18,10 @@ VERSION { global: clock_gettime; __vdso_clock_gettime; + __vdso_clock_gettime_stick; gettimeofday; __vdso_gettimeofday; + __vdso_gettimeofday_stick; local: *; }; } |