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https://github.com/DragonOS-Community/DragonOS.git
synced 2025-06-09 07:06:47 +00:00
47 lines
1.1 KiB
C
47 lines
1.1 KiB
C
#include <libc/unistd.h>
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#include <libc/stdio.h>
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#include <libc/fcntl.h>
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#include <libc/stdlib.h>
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int main()
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{
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char string[] = "333.txt";
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uint8_t buf[128] = {0};
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char tips_str[] = "The first application 'init.bin' started successfully!\n";
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put_string(tips_str, COLOR_GREEN, COLOR_BLACK);
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printf("test printf: %s size: %d\n", string, sizeof(string));
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/*
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int fd = open(string, 0);
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printf("fd=%d\n", fd);
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read(fd, buf, 128);
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put_string(buf, COLOR_ORANGE, COLOR_BLACK);
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lseek(fd, 0, SEEK_SET);
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write(fd, tips_str, sizeof(tips_str)-1);
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lseek(fd, 0, SEEK_SET);
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// 由于暂时没有实现用户态的memset，因此先手动清零
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for(int i=0;i<128;++i)
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buf[i] = 0;
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read(fd, buf, 128);
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put_string(buf, COLOR_YELLOW, COLOR_BLACK);
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close(fd);
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*/
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char *p = malloc(100);
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*p = 'a';
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printf("p=%lld\t*p=%c\n", (uint64_t)p, *p);
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// *p = 'a';
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/*
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pid_t p = fork();
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if(p == 0)
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put_string("subproc\n", COLOR_PURPLE, COLOR_BLACK);
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else put_string("parent proc\n", COLOR_ORANGE, COLOR_BLACK);
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*/
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while (1)
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;
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} |