mirrors/ladybird
0
0
Fork 0
mirror of https://github.com/LadybirdBrowser/ladybird.git synced 2025-05-08 04:02:52 +00:00
Code Issues Projects Releases Packages Wiki Activity Actions 9

Fix a bunch of compiler warnings. Not all, but a lot.

Browse source
This commit is contained in:
Andreas Kling 2019-02-25 19:05:51 +01:00
parent 15fb917f28
commit 901b7d5d91
Notes: sideshowbarker 2024-07-19 15:38:02 +09:00
10 changed files with 29 additions and 191 deletions
Download patch file Download diff file Expand all files Collapse all files

139
Userland/sh.cpp
View file

@ -54,117 +54,6 @@ void handle_sigint(int)
g->was_interrupted = true;
}
static int sh_busy(int, char**)
{
struct sigaction sa;
sa.sa_handler = did_receive_signal;
sa.sa_flags = 0;
sa.sa_mask = 0;
sa.sa_restorer = nullptr;
int rc = sigaction(SIGUSR1, &sa, nullptr);
assert(rc == 0);
printf("listening for signal SIGUSR1 while looping in userspace...\n");
for (;;) {
for (volatile int i = 0; i < 100000; ++i)
;
if (g_got_signal)
break;
}
g_got_signal = false;
return 0;
}
static int sh_fork(int, char**)
{
pid_t pid = fork();
printf("getpid()=%d, fork()=%d\n", getpid(), pid);
return 0;
}
static int sh_fe(int, char**)
{
pid_t pid = fork();
if (!pid) {
int rc = execvp("/bin/ps", nullptr);
if (rc < 0) {
perror("execvp");
exit(1);
}
}
return 0;
}
static int sh_fef(int, char**)
{
pid_t pid = fork();
if (!pid) {
int rc = execvp("/bin/psx", nullptr);
if (rc < 0) {
perror("execvp");
exit(1);
}
}
return 0;
}
static int sh_wt(int, char**)
{
const char* rodata_ptr = "foo";
printf("Writing to rodata=%p...\n", rodata_ptr);
*const_cast<char*>(rodata_ptr) = 0;
char* text_ptr = (char*)sh_fef;
printf("Writing to text=%p...\n", text_ptr);
*text_ptr = 0;
return 0;
}
static int sh_mf(int, char**)
{
int rc;
int fd = open("/Banner.txt", O_RDONLY);
if (fd < 0) {
perror("open(/Banner.txt)");
return 1;
}
printf("opened /Banner.txt, calling mmap...\n");
byte* data = (byte*)mmap(nullptr, getpagesize(), PROT_READ, MAP_PRIVATE, fd, 0);
if (data == MAP_FAILED) {
perror("mmap()");
goto close_it;
}
printf("mapped file @ %p\n", data);
printf("contents: %b %b %b %b\n", data[0], data[1], data[2], data[3]);
rc = munmap(data, getpagesize());
printf("munmap() returned %d\n", rc);
close_it:
rc = close(fd);
printf("close() returned %d\n", rc);
return 0;
}
static int sh_mp(int, char**)
{
int fd = open("/kernel.map", O_RDONLY);
if (fd < 0) {
perror("open(/kernel.map)");
return 1;
}
printf("opened /kernel.map, calling mmap...\n");
byte* data = (byte*)mmap(nullptr, getpagesize() * 10, PROT_READ, MAP_PRIVATE, fd, 0);
if (data == MAP_FAILED) {
perror("mmap()");
return 1;
}
printf("mapped file @ %p\n", data);
printf("contents: %c%c%c%c%c%c%c%c...\n", data[0], data[1], data[2], data[3], data[4], data[5], data[6], data[7]);
printf("leaving it open :)\n");
return 0;
}
static int sh_exit(int, char**)
{
printf("Good-bye!\n");
@ -227,34 +116,6 @@ static bool handle_builtin(int argc, char** argv, int& retval)
retval = sh_exit(argc, argv);
return true;
}
if (!strcmp(argv[0], "fe")) {
retval = sh_fe(argc, argv);
return true;
}
if (!strcmp(argv[0], "fef")) {
retval = sh_fef(argc, argv);
return true;
}
if (!strcmp(argv[0], "busy")) {
retval = sh_busy(argc, argv);
return true;
}
if (!strcmp(argv[0], "wt")) {
retval = sh_wt(argc, argv);
return true;
}
if (!strcmp(argv[0], "mf")) {
retval = sh_mf(argc, argv);
return true;
}
if (!strcmp(argv[0], "mp")) {
retval = sh_mp(argc, argv);
return true;
}
if (!strcmp(argv[0], "fork")) {
retval = sh_fork(argc, argv);
return true;
}
return false;
}