diff options
author | Richard Henderson <richard.henderson@linaro.org> | 2022-04-29 13:57:19 -0700 |
---|---|---|
committer | Richard Henderson <richard.henderson@linaro.org> | 2022-06-28 04:35:52 +0530 |
commit | 90d8e0b09c4a0085bb12e9659eb33ea3773d7ccc (patch) | |
tree | 31fe8963c4d28feb021df6aef435e84ede09d0fe /semihosting/syscalls.c | |
parent | 25a95da0beeb854570f974028b77cd35826433b7 (diff) |
semihosting: Split out semihost_sys_system
Split out the non-ARM specific portions of SYS_SYSTEM to a
reusable function.
Reviewed-by: Luc Michel <lmichel@kalray.eu>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Diffstat (limited to 'semihosting/syscalls.c')
-rw-r--r-- | semihosting/syscalls.c | 40 |
1 files changed, 40 insertions, 0 deletions
diff --git a/semihosting/syscalls.c b/semihosting/syscalls.c index 223916b110..de846ced32 100644 --- a/semihosting/syscalls.c +++ b/semihosting/syscalls.c @@ -165,6 +165,18 @@ static void gdb_rename(CPUState *cs, gdb_syscall_complete_cb complete, gdb_do_syscall(complete, "rename,%s,%s", oname, olen, nname, nlen); } +static void gdb_system(CPUState *cs, gdb_syscall_complete_cb complete, + target_ulong cmd, target_ulong cmd_len) +{ + int len = validate_strlen(cs, cmd, cmd_len); + if (len < 0) { + complete(cs, -1, -len); + return; + } + + gdb_do_syscall(complete, "system,%s", cmd, len); +} + /* * Host semihosting syscall implementations. */ @@ -353,6 +365,24 @@ static void host_rename(CPUState *cs, gdb_syscall_complete_cb complete, unlock_user(nstr, nname, 0); } +static void host_system(CPUState *cs, gdb_syscall_complete_cb complete, + target_ulong cmd, target_ulong cmd_len) +{ + CPUArchState *env G_GNUC_UNUSED = cs->env_ptr; + char *p; + int ret; + + ret = validate_lock_user_string(&p, cs, cmd, cmd_len); + if (ret < 0) { + complete(cs, -1, -ret); + return; + } + + ret = system(p); + complete(cs, ret, ret == -1 ? errno : 0); + unlock_user(p, cmd, 0); +} + /* * Static file semihosting syscall implementations. */ @@ -619,3 +649,13 @@ void semihost_sys_rename(CPUState *cs, gdb_syscall_complete_cb complete, host_rename(cs, complete, oname, oname_len, nname, nname_len); } } + +void semihost_sys_system(CPUState *cs, gdb_syscall_complete_cb complete, + target_ulong cmd, target_ulong cmd_len) +{ + if (use_gdb_syscalls()) { + gdb_system(cs, complete, cmd, cmd_len); + } else { + host_system(cs, complete, cmd, cmd_len); + } +} |