From 036cf169a3484eeca5e17cfbee1f6988043ddd0e Mon Sep 17 00:00:00 2001 From: Helge Deller Date: Sun, 12 Mar 2023 23:17:13 +0100 Subject: [PATCH] linux-user: Improve strace output of pread64() and pwrite64() Make the strace look nicer for those two syscalls. Signed-off-by: Helge Deller Reviewed-by: Richard Henderson --- linux-user/strace.c | 19 +++++++++++++++++++ linux-user/strace.list | 4 ++-- 2 files changed, 21 insertions(+), 2 deletions(-) diff --git a/linux-user/strace.c b/linux-user/strace.c index aad2b62ca4..669200c4a4 100644 --- a/linux-user/strace.c +++ b/linux-user/strace.c @@ -3999,6 +3999,25 @@ print_tgkill(CPUArchState *cpu_env, const struct syscallname *name, } #endif +#if defined(TARGET_NR_pread64) || defined(TARGET_NR_pwrite64) +static void +print_pread64(CPUArchState *cpu_env, const struct syscallname *name, + abi_long arg0, abi_long arg1, abi_long arg2, + abi_long arg3, abi_long arg4, abi_long arg5) +{ + if (regpairs_aligned(cpu_env, TARGET_NR_pread64)) { + arg3 = arg4; + arg4 = arg5; + } + print_syscall_prologue(name); + print_raw_param("%d", arg0, 0); + print_pointer(arg1, 0); + print_raw_param("%d", arg2, 0); + print_raw_param("%" PRIu64, target_offset64(arg3, arg4), 1); + print_syscall_epilogue(name); +} +#endif + #ifdef TARGET_NR_statx static void print_statx(CPUArchState *cpu_env, const struct syscallname *name, diff --git a/linux-user/strace.list b/linux-user/strace.list index c7808ea118..6655d4f26d 100644 --- a/linux-user/strace.list +++ b/linux-user/strace.list @@ -1068,7 +1068,7 @@ { TARGET_NR_prctl, "prctl" , NULL, NULL, NULL }, #endif #ifdef TARGET_NR_pread64 -{ TARGET_NR_pread64, "pread64" , NULL, NULL, NULL }, +{ TARGET_NR_pread64, "pread64" , NULL, print_pread64, NULL }, #endif #ifdef TARGET_NR_preadv { TARGET_NR_preadv, "preadv" , NULL, NULL, NULL }, @@ -1099,7 +1099,7 @@ { TARGET_NR_putpmsg, "putpmsg" , NULL, NULL, NULL }, #endif #ifdef TARGET_NR_pwrite64 -{ TARGET_NR_pwrite64, "pwrite64" , NULL, NULL, NULL }, +{ TARGET_NR_pwrite64, "pwrite64" , NULL, print_pread64, NULL }, #endif #ifdef TARGET_NR_pwritev { TARGET_NR_pwritev, "pwritev" , NULL, NULL, NULL }, -- 2.11.0