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kselftest/arm64: Initialise current at build time in signal tests

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commit 6e4b4f0eca88e47def703f90a403fef5b96730d5 upstream.

When building with clang the toolchain refuses to link the signals
testcases since the assembly code has a reference to current which has
no initialiser so is placed in the BSS:

  /tmp/signals-af2042.o: in function `fake_sigreturn':
  <unknown>:51:(.text+0x40): relocation truncated to fit: R_AARCH64_LD_PREL_LO19 against symbol `current' defined in .bss section in /tmp/test_signals-ec1160.o

Since the first statement in main() initialises current we may as well
fix this by moving the initialisation to build time so the variable
doesn't end up in the BSS.

Signed-off-by: Mark Brown <broonie@kernel.org>
Reviewed-by: Nick Desaulniers <ndesaulniers@google.com>
Link: https://lore.kernel.org/r/20230111-arm64-kselftest-clang-v1-4-89c69d377727@kernel.org
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Mahmoud Adam <mngyadam@amazon.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Mark Brown
2023-01-12 19:51:50 +00:00
committed by Greg Kroah-Hartman
parent a60db84f77
commit c8ec4e437a
1 changed files with 1 additions and 3 deletions
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4
tools/testing/selftests/arm64/signal/test_signals.c
View File

@@ -12,12 +12,10 @@
#include "test_signals.h"
#include "test_signals_utils.h"
struct tdescr *current;
struct tdescr *current = &tde;
int main(int argc, char *argv[])
{
current = &tde;
ksft_print_msg("%s :: %s\n", current->name, current->descr);
if (test_setup(current) && test_init(current)) {
test_run(current);