mirrors/qemu
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

linux-user: Add strace for prlimit64() syscall

Browse Source 
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>
This commit is contained in:
Helge Deller 2022-12-22 20:06:39 +01:00 committed by Laurent Vivier
parent 8e0f5c1b10
commit dae81a083b
2 changed files with 90 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

88
linux-user/strace.c
View File

@ -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,

3
linux-user/strace.list
View File

@ -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 },