diff options
| author | Helge Deller <deller@gmx.de> | 2022-12-22 20:06:39 +0100 |
|---|---|---|
| committer | Laurent Vivier <laurent@vivier.eu> | 2023-03-10 20:45:47 +0100 |
| commit | dae81a083b13fe1607d369f103b0357a610a3167 (patch) | |
| tree | 737beb1dec17d293cb2d4159793f3bf8d1b20d0c | |
| parent | 8e0f5c1b10e18538083e96c0dddbd78c83d5b2fa (diff) | |
linux-user: Add strace for prlimit64() syscall
Add proper prlimit64() strace output.
Signed-off-by: Helge Deller <deller@gmx.de>
Reviewed-by: Laurent Vivier <laurent@vivier.eu>
Message-Id: <20221222190639.124078-1-deller@gmx.de>
[lvivier: use print_raw_param64()]
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
| -rw-r--r-- | linux-user/strace.c | 88 | ||||
| -rw-r--r-- | linux-user/strace.list | 3 |
2 files changed, 90 insertions, 1 deletions
diff --git a/linux-user/strace.c b/linux-user/strace.c index 5218e3fc33..e08bd53afb 100644 --- a/linux-user/strace.c +++ b/linux-user/strace.c @@ -3866,6 +3866,94 @@ print_futex(CPUArchState *cpu_env, const struct syscallname *name, } #endif +#ifdef TARGET_NR_prlimit64 +static const char *target_ressource_string(abi_ulong r) +{ + #define RET_RES_ENTRY(res) case TARGET_##res: return #res; + switch (r) { + RET_RES_ENTRY(RLIMIT_AS); + RET_RES_ENTRY(RLIMIT_CORE); + RET_RES_ENTRY(RLIMIT_CPU); + RET_RES_ENTRY(RLIMIT_DATA); + RET_RES_ENTRY(RLIMIT_FSIZE); + RET_RES_ENTRY(RLIMIT_LOCKS); + RET_RES_ENTRY(RLIMIT_MEMLOCK); + RET_RES_ENTRY(RLIMIT_MSGQUEUE); + RET_RES_ENTRY(RLIMIT_NICE); + RET_RES_ENTRY(RLIMIT_NOFILE); + RET_RES_ENTRY(RLIMIT_NPROC); + RET_RES_ENTRY(RLIMIT_RSS); + RET_RES_ENTRY(RLIMIT_RTPRIO); +#ifdef RLIMIT_RTTIME + RET_RES_ENTRY(RLIMIT_RTTIME); +#endif + RET_RES_ENTRY(RLIMIT_SIGPENDING); + RET_RES_ENTRY(RLIMIT_STACK); + default: + return NULL; + } + #undef RET_RES_ENTRY +} + +static void +print_rlimit64(abi_ulong rlim_addr, int last) +{ + if (rlim_addr) { + struct target_rlimit64 *rl; + + rl = lock_user(VERIFY_READ, rlim_addr, sizeof(*rl), 1); + if (!rl) { + print_pointer(rlim_addr, last); + return; + } + print_raw_param64("{rlim_cur=%" PRId64, tswap64(rl->rlim_cur), 0); + print_raw_param64("rlim_max=%" PRId64 "}", tswap64(rl->rlim_max), + last); + unlock_user(rl, rlim_addr, 0); + } else { + qemu_log("NULL%s", get_comma(last)); + } +} + +static void +print_prlimit64(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) +{ + const char *rlim_name; + + print_syscall_prologue(name); + print_raw_param("%d", arg0, 0); + rlim_name = target_ressource_string(arg1); + if (rlim_name) { + qemu_log("%s,", rlim_name); + } else { + print_raw_param("%d", arg1, 0); + } + print_rlimit64(arg2, 0); + print_pointer(arg3, 1); + print_syscall_epilogue(name); +} + +static void +print_syscall_ret_prlimit64(CPUArchState *cpu_env, + const struct syscallname *name, + abi_long ret, abi_long arg0, abi_long arg1, + abi_long arg2, abi_long arg3, abi_long arg4, + abi_long arg5) +{ + if (!print_syscall_err(ret)) { + qemu_log(TARGET_ABI_FMT_ld, ret); + if (arg3) { + qemu_log(" ("); + print_rlimit64(arg3, 1); + qemu_log(")"); + } + } + qemu_log("\n"); +} +#endif + #ifdef TARGET_NR_kill static void print_kill(CPUArchState *cpu_env, const struct syscallname *name, diff --git a/linux-user/strace.list b/linux-user/strace.list index d8acbeec60..f776c73fa0 100644 --- a/linux-user/strace.list +++ b/linux-user/strace.list @@ -1074,7 +1074,8 @@ { TARGET_NR_preadv, "preadv" , NULL, NULL, NULL }, #endif #ifdef TARGET_NR_prlimit64 -{ TARGET_NR_prlimit64, "prlimit64" , NULL, NULL, NULL }, +{ TARGET_NR_prlimit64, "prlimit64" , NULL, print_prlimit64, + print_syscall_ret_prlimit64 }, #endif #ifdef TARGET_NR_process_vm_readv { TARGET_NR_process_vm_readv, "process_vm_readv" , NULL, NULL, NULL }, |