mirror of
https://github.com/gatieme/LDD-LinuxDeviceDrivers.git
synced 2026-08-20 22:04:56 +08:00
memory: spilt code to module and tool
This commit is contained in:
Cheng Jian
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cmd_/home/gatieme/Work/GitHub/LDD-LinuxDeviceDrivers/study/kernel/memory/kv2p/kv2p.ko := aarch64-linux-gnu-ld -EL -r -T /usr/src/linux-headers-3.14.0-20150821.kylin.3.desktop/scripts/module-common.lds --build-id -o /home/gatieme/Work/GitHub/LDD-LinuxDeviceDrivers/study/kernel/memory/kv2p/kv2p.ko /home/gatieme/Work/GitHub/LDD-LinuxDeviceDrivers/study/kernel/memory/kv2p/kv2p.o /home/gatieme/Work/GitHub/LDD-LinuxDeviceDrivers/study/kernel/memory/kv2p/kv2p.mod.o
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/home/gatieme/Work/GitHub/LDD-LinuxDeviceDrivers/study/kernel/memory/kv2p/kv2p.ko
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/home/gatieme/Work/GitHub/LDD-LinuxDeviceDrivers/study/kernel/memory/kv2p/kv2p.o
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#include <linux/module.h>
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#include <linux/vermagic.h>
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#include <linux/compiler.h>
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MODULE_INFO(vermagic, VERMAGIC_STRING);
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__visible struct module __this_module
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__attribute__((section(".gnu.linkonce.this_module"))) = {
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.name = KBUILD_MODNAME,
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.init = init_module,
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#ifdef CONFIG_MODULE_UNLOAD
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.exit = cleanup_module,
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#endif
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.arch = MODULE_ARCH_INIT,
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};
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static const struct modversion_info ____versions[]
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__used
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__attribute__((section("__versions"))) = {
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{ 0x146be775, __VMLINUX_SYMBOL_STR(module_layout) },
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{ 0x8d2e268b, __VMLINUX_SYMBOL_STR(param_ops_ulong) },
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{ 0x27e1a049, __VMLINUX_SYMBOL_STR(printk) },
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{ 0xf8e398fc, __VMLINUX_SYMBOL_STR(memstart_addr) },
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};
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static const char __module_depends[]
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__used
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__attribute__((section(".modinfo"))) =
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"depends=";
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kernel//home/gatieme/Work/GitHub/LDD-LinuxDeviceDrivers/study/kernel/memory/kv2p/kv2p.ko
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cmd_/home/gatieme/Work/GitHub/LDD-LinuxDeviceDrivers/study/kernel/02-memory/00-code/mmap/mmap_test.ko := aarch64-linux-gnu-ld -EL -r -T /usr/src/linux-headers-3.14.0-20150821.kylin.3.desktop/scripts/module-common.lds --build-id -o /home/gatieme/Work/GitHub/LDD-LinuxDeviceDrivers/study/kernel/02-memory/00-code/mmap/mmap_test.ko /home/gatieme/Work/GitHub/LDD-LinuxDeviceDrivers/study/kernel/02-memory/00-code/mmap/mmap_test.o /home/gatieme/Work/GitHub/LDD-LinuxDeviceDrivers/study/kernel/02-memory/00-code/mmap/mmap_test.mod.o
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/home/gatieme/Work/GitHub/LDD-LinuxDeviceDrivers/study/kernel/02-memory/00-code/mmap/mmap_test.ko
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/home/gatieme/Work/GitHub/LDD-LinuxDeviceDrivers/study/kernel/02-memory/00-code/mmap/mmap_test.o
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@@ -1,39 +0,0 @@
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#include <linux/module.h>
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#include <linux/vermagic.h>
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#include <linux/compiler.h>
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MODULE_INFO(vermagic, VERMAGIC_STRING);
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__visible struct module __this_module
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__attribute__((section(".gnu.linkonce.this_module"))) = {
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.name = KBUILD_MODNAME,
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.init = init_module,
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#ifdef CONFIG_MODULE_UNLOAD
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.exit = cleanup_module,
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#endif
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.arch = MODULE_ARCH_INIT,
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};
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static const struct modversion_info ____versions[]
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__used
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__attribute__((section("__versions"))) = {
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{ 0x146be775, __VMLINUX_SYMBOL_STR(module_layout) },
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{ 0x37a0cba, __VMLINUX_SYMBOL_STR(kfree) },
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{ 0xa87cf413, __VMLINUX_SYMBOL_STR(clear_bit) },
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{ 0x15625c2c, __VMLINUX_SYMBOL_STR(misc_deregister) },
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{ 0xdc435006, __VMLINUX_SYMBOL_STR(device_create_file) },
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{ 0xae8c4d0c, __VMLINUX_SYMBOL_STR(set_bit) },
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{ 0x71603d38, __VMLINUX_SYMBOL_STR(kmem_cache_alloc) },
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{ 0x442f54a5, __VMLINUX_SYMBOL_STR(kmalloc_caches) },
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{ 0x4bc5f446, __VMLINUX_SYMBOL_STR(misc_register) },
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{ 0x4813cae7, __VMLINUX_SYMBOL_STR(remap_pfn_range) },
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{ 0x41182cc0, __VMLINUX_SYMBOL_STR(pgprot_default) },
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{ 0xf8e398fc, __VMLINUX_SYMBOL_STR(memstart_addr) },
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{ 0x27e1a049, __VMLINUX_SYMBOL_STR(printk) },
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};
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static const char __module_depends[]
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__used
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__attribute__((section(".modinfo"))) =
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"depends=";
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@@ -1 +0,0 @@
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kernel//home/gatieme/Work/GitHub/LDD-LinuxDeviceDrivers/study/kernel/02-memory/00-code/mmap/mmap_test.ko
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#include <stdio.h>
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#include <stdlib.h>
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#include <sys/mman.h>
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#include <sys/types.h>
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#include <sys/stat.h>
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#include <fcntl.h>
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#include <unistd.h>
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int main(void)
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{
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int fd = open("1.bat", O_RDWR|O_CREAT|O_TRUNC, 0777);
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ftruncate(fd, 5000);
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int pagesize = sysconf(_SC_PAGE_SIZE);
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printf("pagesize = %d\n", pagesize);
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char *addr_mmap_p = mmap(NULL, pagesize, PROT_WRITE, MAP_PRIVATE, fd, 0);
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char *addr_mmap_s = mmap(NULL, pagesize, PROT_WRITE, MAP_SHARED, fd, 0);
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unsigned long *addr_malloc = malloc(sizeof(unsigned long));
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printf("addr_mmap_p: %p, addr_mmap_s: %p, addr_malloc: %p\n",
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addr_mmap_p, addr_mmap_s, addr_malloc);
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addr_mmap_p[pagesize - 1] = 0;
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addr_mmap_s[pagesize - 1] = 0;
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*addr_malloc = 0;
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char c = getchar();
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return 0;
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}
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