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Date: Thu, 18 May 2017 02:17:14 +0900
From: Masami Hiramatsu <mhiramat@...nel.org>
To: Jeff Dike <jdike@...toit.com>, Richard Weinberger <richard@....at>
Cc: Masami Hiramatsu <mhiramat@...nel.org>,
user-mode-linux-devel@...ts.sourceforge.net,
linux-kernel@...r.kernel.org
Subject: [PATCH v3 3/6] um: Use os_info for the messages on normal path
Use os_info() for printing out the messages on the
normal execution path.
Signed-off-by: Masami Hiramatsu <mhiramat@...nel.org>
---
Changes in v3:
- Cast rlim_min/max to unsigned long long explicitly
for avoiding printf-format warning.
---
arch/um/kernel/um_arch.c | 8 ++++----
arch/um/os-Linux/main.c | 3 +--
arch/um/os-Linux/mem.c | 18 +++++++++---------
arch/um/os-Linux/start_up.c | 26 ++++++++++++++------------
4 files changed, 28 insertions(+), 27 deletions(-)
diff --git a/arch/um/kernel/um_arch.c b/arch/um/kernel/um_arch.c
index 64a1fd0..5df91d8 100644
--- a/arch/um/kernel/um_arch.c
+++ b/arch/um/kernel/um_arch.c
@@ -289,8 +289,8 @@ int __init linux_main(int argc, char **argv)
diff = UML_ROUND_UP(brk_start) - UML_ROUND_UP(&_end);
if (diff > 1024 * 1024) {
- printf("Adding %ld bytes to physical memory to account for "
- "exec-shield gap\n", diff);
+ os_info("Adding %ld bytes to physical memory to account for "
+ "exec-shield gap\n", diff);
physmem_size += UML_ROUND_UP(brk_start) - UML_ROUND_UP(&_end);
}
@@ -330,8 +330,8 @@ int __init linux_main(int argc, char **argv)
end_vm = start_vm + virtmem_size;
if (virtmem_size < physmem_size)
- printf("Kernel virtual memory size shrunk to %lu bytes\n",
- virtmem_size);
+ os_info("Kernel virtual memory size shrunk to %lu bytes\n",
+ virtmem_size);
os_flush_stdout();
diff --git a/arch/um/os-Linux/main.c b/arch/um/os-Linux/main.c
index 9d499de..f880dcd 100644
--- a/arch/um/os-Linux/main.c
+++ b/arch/um/os-Linux/main.c
@@ -184,14 +184,13 @@ int __init main(int argc, char **argv, char **envp)
*/
unblock_signals();
+ os_info("\n");
/* Reboot */
if (ret) {
- printf("\n");
execvp(new_argv[0], new_argv);
perror("Failed to exec kernel");
ret = 1;
}
- printf("\n");
return uml_exitcode;
}
diff --git a/arch/um/os-Linux/mem.c b/arch/um/os-Linux/mem.c
index 8b17676..a7f6023 100644
--- a/arch/um/os-Linux/mem.c
+++ b/arch/um/os-Linux/mem.c
@@ -25,13 +25,13 @@ static int __init check_tmpfs(const char *dir)
{
struct statfs st;
- printf("Checking if %s is on tmpfs...", dir);
+ os_info("Checking if %s is on tmpfs...", dir);
if (statfs(dir, &st) < 0) {
- printf("%s\n", strerror(errno));
+ os_info("%s\n", strerror(errno));
} else if (st.f_type != TMPFS_MAGIC) {
- printf("no\n");
+ os_info("no\n");
} else {
- printf("OK\n");
+ os_info("OK\n");
return 0;
}
return -1;
@@ -61,18 +61,18 @@ static char * __init choose_tempdir(void)
int i;
const char *dir;
- printf("Checking environment variables for a tempdir...");
+ os_info("Checking environment variables for a tempdir...");
for (i = 0; vars[i]; i++) {
dir = getenv(vars[i]);
if ((dir != NULL) && (*dir != '\0')) {
- printf("%s\n", dir);
+ os_info("%s\n", dir);
if (check_tmpfs(dir) >= 0)
goto done;
else
goto warn;
}
}
- printf("none found\n");
+ os_info("none found\n");
for (i = 0; tmpfs_dirs[i]; i++) {
dir = tmpfs_dirs[i];
@@ -194,7 +194,7 @@ void __init check_tmpexec(void)
addr = mmap(NULL, UM_KERN_PAGE_SIZE,
PROT_READ | PROT_WRITE | PROT_EXEC, MAP_PRIVATE, fd, 0);
- printf("Checking PROT_EXEC mmap in %s...", tempdir);
+ os_info("Checking PROT_EXEC mmap in %s...", tempdir);
if (addr == MAP_FAILED) {
err = errno;
printf("%s\n", strerror(err));
@@ -203,7 +203,7 @@ void __init check_tmpexec(void)
printf("%s must be not mounted noexec\n", tempdir);
exit(1);
}
- printf("OK\n");
+ os_info("OK\n");
munmap(addr, UM_KERN_PAGE_SIZE);
close(fd);
diff --git a/arch/um/os-Linux/start_up.c b/arch/um/os-Linux/start_up.c
index 22a358e..f16e001 100644
--- a/arch/um/os-Linux/start_up.c
+++ b/arch/um/os-Linux/start_up.c
@@ -166,7 +166,7 @@ static void __init check_sysemu(void)
unsigned long regs[MAX_REG_NR];
int pid, n, status, count=0;
- non_fatal("Checking syscall emulation patch for ptrace...");
+ os_info("Checking syscall emulation patch for ptrace...");
sysemu_supported = 0;
pid = start_ptraced_child();
@@ -199,10 +199,10 @@ static void __init check_sysemu(void)
goto fail_stopped;
sysemu_supported = 1;
- non_fatal("OK\n");
+ os_info("OK\n");
set_using_sysemu(!force_sysemu_disabled);
- non_fatal("Checking advanced syscall emulation patch for ptrace...");
+ os_info("Checking advanced syscall emulation patch for ptrace...");
pid = start_ptraced_child();
if ((ptrace(PTRACE_OLDSETOPTIONS, pid, 0,
@@ -244,7 +244,7 @@ static void __init check_sysemu(void)
goto fail_stopped;
sysemu_supported = 2;
- non_fatal("OK\n");
+ os_info("OK\n");
if (!force_sysemu_disabled)
set_using_sysemu(sysemu_supported);
@@ -260,7 +260,7 @@ static void __init check_ptrace(void)
{
int pid, syscall, n, status;
- non_fatal("Checking that ptrace can change system call numbers...");
+ os_info("Checking that ptrace can change system call numbers...");
pid = start_ptraced_child();
if ((ptrace(PTRACE_OLDSETOPTIONS, pid, 0,
@@ -292,7 +292,7 @@ static void __init check_ptrace(void)
}
}
stop_ptraced_child(pid, 0, 1);
- non_fatal("OK\n");
+ os_info("OK\n");
check_sysemu();
}
@@ -308,15 +308,17 @@ static void __init check_coredump_limit(void)
return;
}
- printf("Core dump limits :\n\tsoft - ");
+ os_info("Core dump limits :\n\tsoft - ");
if (lim.rlim_cur == RLIM_INFINITY)
- printf("NONE\n");
- else printf("%lu\n", lim.rlim_cur);
+ os_info("NONE\n");
+ else
+ os_info("%llu\n", (unsigned long long)lim.rlim_cur);
- printf("\thard - ");
+ os_info("\thard - ");
if (lim.rlim_max == RLIM_INFINITY)
- printf("NONE\n");
- else printf("%lu\n", lim.rlim_max);
+ os_info("NONE\n");
+ else
+ os_info("%llu\n", (unsigned long long)lim.rlim_max);
}
void __init os_early_checks(void)
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