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linux-user: Fix strace output for s390x mmap()

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print_mmap() assumes that mmap() receives arguments via memory if
mmap2() is present. s390x (as opposed to s390) does not fit this
pattern: it does not have mmap2(), but mmap() still receives arguments
via memory.

Fix by sharing the detection logic between syscall.c and strace.c.

Cc: qemu-stable@nongnu.org
Fixes: d971040c2d ("linux-user: Fix strace output for old_mmap")
Suggested-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Ilya Leoshkevich <iii@linux.ibm.com>
Message-ID: <20241120212717.246186-1-iii@linux.ibm.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
This commit is contained in:
Ilya Leoshkevich 2024-11-20 22:26:44 +01:00 • committed by Richard Henderson
parent e8b609ac35
commit d95fd9838b
3 changed files with 9 additions and 5 deletions
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2
linux-user/strace.c
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@ -3971,7 +3971,7 @@ print_mmap(CPUArchState *cpu_env, const struct syscallname *name,
{
return print_mmap_both(cpu_env, name, arg0, arg1, arg2, arg3,
arg4, arg5,
#if defined(TARGET_NR_mmap2)
#ifdef TARGET_ARCH_WANT_SYS_OLD_MMAP
true
#else
false