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linux-user/strace: Extract print_execve_argv() from print_execve()

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In order to add print_execveat() which re-use common code from
print_execve(), extract print_execve_argv() from it.

Signed-off-by: Drew DeVault <sir@cmpwn.com>
Message-Id: <20221104081015.706009-1-sir@cmpwn.com>
[PMD: Split of bigger patch, filled description, fixed style]
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Laurent Vivier <laurent@vivier.eu>
Message-Id: <20221104173632.1052-3-philmd@linaro.org>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
This commit is contained in:
Drew DeVault 2022-11-04 18:36:29 +01:00 committed by Laurent Vivier
parent ba0fef0dd9
commit 24acb7b474
1 changed files with 39 additions and 32 deletions
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71
linux-user/strace.c
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@ -616,38 +616,6 @@ print_semctl(CPUArchState *cpu_env, const struct syscallname *name,
}
#endif
static void
print_execve(CPUArchState *cpu_env, const struct syscallname *name,
abi_long arg1, abi_long arg2, abi_long arg3,
abi_long arg4, abi_long arg5, abi_long arg6)
{
abi_ulong arg_ptr_addr;
char *s;
if (!(s = lock_user_string(arg1)))
return;
qemu_log("%s(\"%s\",{", name->name, s);
unlock_user(s, arg1, 0);
for (arg_ptr_addr = arg2; ; arg_ptr_addr += sizeof(abi_ulong)) {
abi_ulong *arg_ptr, arg_addr;
arg_ptr = lock_user(VERIFY_READ, arg_ptr_addr, sizeof(abi_ulong), 1);
if (!arg_ptr)
return;
arg_addr = tswapal(*arg_ptr);
unlock_user(arg_ptr, arg_ptr_addr, 0);
if (!arg_addr)
break;
if ((s = lock_user_string(arg_addr))) {
qemu_log("\"%s\",", s);
unlock_user(s, arg_addr, 0);
}
}
qemu_log("NULL})");
}
#ifdef TARGET_NR_ipc
static void
print_ipc(CPUArchState *cpu_env, const struct syscallname *name,
@ -1969,6 +1937,45 @@ print_execv(CPUArchState *cpu_env, const struct syscallname *name,
}
#endif
static void
print_execve_argv(abi_long argv, int last)
{
abi_ulong arg_ptr_addr;
char *s;
qemu_log("{");
for (arg_ptr_addr = argv; ; arg_ptr_addr += sizeof(abi_ulong)) {
abi_ulong *arg_ptr, arg_addr;
arg_ptr = lock_user(VERIFY_READ, arg_ptr_addr, sizeof(abi_ulong), 1);
if (!arg_ptr) {
return;
}
arg_addr = tswapal(*arg_ptr);
unlock_user(arg_ptr, arg_ptr_addr, 0);
if (!arg_addr) {
break;
}
s = lock_user_string(arg_addr);
if (s) {
qemu_log("\"%s\",", s);
unlock_user(s, arg_addr, 0);
}
}
qemu_log("NULL}%s", get_comma(last));
}
static void
print_execve(CPUArchState *cpu_env, const struct syscallname *name,
abi_long arg1, abi_long arg2, abi_long arg3,
abi_long arg4, abi_long arg5, abi_long arg6)
{
print_syscall_prologue(name);
print_string(arg1, 0);
print_execve_argv(arg2, 1);
print_syscall_epilogue(name);
}
#if defined(TARGET_NR_faccessat) || defined(TARGET_NR_faccessat2)
static void
print_faccessat(CPUArchState *cpu_env, const struct syscallname *name,