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linux-kselftest-4.19-rc7 

This fixes update for 4.19-rc7 consists one fix to rseq test to prevent
 it from seg-faulting when compiled with -fpie.
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Merge tag 'linux-kselftest-4.19-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest

Shuah writes:
  "kselftest fixes for 4.19-rc7

   This fixes update for 4.19-rc7 consists one fix to rseq test to
   prevent it from seg-faulting when compiled with -fpie."

* tag 'linux-kselftest-4.19-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest:
  rseq/selftests: fix parametrized test with -fpie
This commit is contained in:
Greg Kroah-Hartman 2018-10-03 11:06:49 -07:00
parent 6bebe37927 ce01a1575f
commit 95773dc086
1 changed files with 10 additions and 9 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

19
tools/testing/selftests/rseq/param_test.c
View File

@ -56,15 +56,13 @@ unsigned int yield_mod_cnt, nr_abort;
printf(fmt, ## __VA_ARGS__); \
} while (0)
#if defined(__x86_64__) || defined(__i386__)
#ifdef __i386__
#define INJECT_ASM_REG "eax"
#define RSEQ_INJECT_CLOBBER \
, INJECT_ASM_REG
#ifdef __i386__
#define RSEQ_INJECT_ASM(n) \
"mov asm_loop_cnt_" #n ", %%" INJECT_ASM_REG "\n\t" \
"test %%" INJECT_ASM_REG ",%%" INJECT_ASM_REG "\n\t" \
@ -76,9 +74,16 @@ unsigned int yield_mod_cnt, nr_abort;
#elif defined(__x86_64__)
#define INJECT_ASM_REG_P "rax"
#define INJECT_ASM_REG "eax"
#define RSEQ_INJECT_CLOBBER \
, INJECT_ASM_REG_P \
, INJECT_ASM_REG
#define RSEQ_INJECT_ASM(n) \
"lea asm_loop_cnt_" #n "(%%rip), %%" INJECT_ASM_REG "\n\t" \
"mov (%%" INJECT_ASM_REG "), %%" INJECT_ASM_REG "\n\t" \
"lea asm_loop_cnt_" #n "(%%rip), %%" INJECT_ASM_REG_P "\n\t" \
"mov (%%" INJECT_ASM_REG_P "), %%" INJECT_ASM_REG "\n\t" \
"test %%" INJECT_ASM_REG ",%%" INJECT_ASM_REG "\n\t" \
"jz 333f\n\t" \
"222:\n\t" \
@ -86,10 +91,6 @@ unsigned int yield_mod_cnt, nr_abort;
"jnz 222b\n\t" \
"333:\n\t"
#else
#error "Unsupported architecture"
#endif
#elif defined(__s390__)
#define RSEQ_INJECT_INPUT \