hi all,
im getting the following compilation error when trying to compile a file under /proc using 5.5 RHEL
here are the compilcation errors im getting:Code:/* * procfs1.c - create a "file" in /proc * */ #include <linux/module.h> /* Specifically, a module */ #include <linux/kernel.h> /* We're doing kernel work */ #include <linux/proc_fs.h> /* Necessary because we use the proc fs */ #define procfs_name "helloworld" /** * This structure hold information about the /proc file * */ struct proc_dir_entry *Our_Proc_File; /* Put data into the proc fs file. * * Arguments * ========= * 1. The buffer where the data is to be inserted, if * you decide to use it. * 2. A pointer to a pointer to characters. This is * useful if you don't want to use the buffer * allocated by the kernel. * 3. The current position in the file * 4. The size of the buffer in the first argument. * 5. Write a "1" here to indicate EOF. * 6. A pointer to data (useful in case one common * read for multiple /proc/... entries) * * Usage and Return Value * ====================== * A return value of zero means you have no further * information at this time (end of file). A negative * return value is an error condition. * * For More Information * ==================== * The way I discovered what to do with this function * wasn't by reading documentation, but by reading the * code which used it. I just looked to see what uses * the get_info field of proc_dir_entry struct (I used a * combination of find and grep, if you're interested), * and I saw that it is used in <kernel source * directory>/fs/proc/array.c. * * If something is unknown about the kernel, this is * usually the way to go. In Linux we have the great * advantage of having the kernel source code for * free - use it. */ int procfile_read(char *buffer, char **buffer_location, off_t offset, int buffer_length, int *eof, void *data) { int ret; printk(KERN_INFO "procfile_read (/proc/%s) called\n", procfs_name); /* * We give all of our information in one go, so if the * user asks us if we have more information the * answer should always be no. * * This is important because the standard read * function from the library would continue to issue * the read system call until the kernel replies * that it has no more information, or until its * buffer is filled. */ if (offset > 0) { /* we have finished to read, return 0 */ ret = 0; } else { /* fill the buffer, return the buffer size */ ret = sprintf(buffer, "HelloWorld!\n"); } return ret; } int init_module() { Our_Proc_File = create_proc_entry(procfs_name, 0644, NULL); if (Our_Proc_File == NULL) { remove_proc_entry(procfs_name, &proc_root); printk(KERN_ALERT "Error: Could not initialize /proc/%s\n", procfs_name); return -ENOMEM; } Our_Proc_File->read_proc = procfile_read; Our_Proc_File->owner = THIS_MODULE; Our_Proc_File->mode = S_IFREG | S_IRUGO; Our_Proc_File->uid = 0; Our_Proc_File->gid = 0; Our_Proc_File->size = 37; printk(KERN_INFO "/proc/%s created\n", procfs_name); return 0; /* everything is ok */ } void cleanup_module() { remove_proc_entry(procfs_name, &proc_root); printk(KERN_INFO "/proc/%s removed\n", procfs_name); }
Code:[root@SRV-00-035 home]# g++ procfs1.cpp -o procfs1 -v -I /usr/src/kernels/2.6.18-194.el5-xen-x86_64/include/ Using built-in specs. Target: x86_64-redhat-linux Configured with: ../configure --prefix=/usr --mandir=/usr/share/man --infodir=/usr/share/info --enable-shared --enable-threads=posix --enable-checking=release --with-system-zlib --enable-__cxa_atexit --disable-libunwind-exceptions --enable-libgcj-multifile --enable-languages=c,c++,objc,obj-c++,java,fortran,ada --enable-java-awt=gtk --disable-dssi --enable-plugin --with-java-home=/usr/lib/jvm/java-1.4.2-gcj-1.4.2.0/jre --with-cpu=generic --host=x86_64-redhat-linux Thread model: posix gcc version 4.1.2 20080704 (Red Hat 4.1.2-48) /usr/libexec/gcc/x86_64-redhat-linux/4.1.2/cc1plus -quiet -v -I /usr/src/kernels/2.6.18-194.el5-xen-x86_64/include/ -D_GNU_SOURCE procfs1.cpp -quiet -dumpbase procfs1.cpp -mtune=generic -auxbase procfs1 -version -o /tmp/ccD2mF0Q.s ignoring nonexistent directory "/usr/lib/gcc/x86_64-redhat-linux/4.1.2/../../../../x86_64-redhat-linux/include" #include "..." search starts here: #include <...> search starts here: /usr/src/kernels/2.6.18-194.el5-xen-x86_64/include/ /usr/lib/gcc/x86_64-redhat-linux/4.1.2/../../../../include/c++/4.1.2 /usr/lib/gcc/x86_64-redhat-linux/4.1.2/../../../../include/c++/4.1.2/x86_64-redhat-linux /usr/lib/gcc/x86_64-redhat-linux/4.1.2/../../../../include/c++/4.1.2/backward /usr/local/include /usr/lib/gcc/x86_64-redhat-linux/4.1.2/include /usr/include End of search list. GNU C++ version 4.1.2 20080704 (Red Hat 4.1.2-48) (x86_64-redhat-linux) compiled by GNU C version 4.1.2 20080704 (Red Hat 4.1.2-48). GGC heuristics: --param ggc-min-expand=100 --param ggc-min-heapsize=131072 Compiler executable checksum: ad35c03ce9997656f54e642ebd49f167 In file included from /usr/src/kernels/2.6.18-194.el5-xen-x86_64/include/linux/lockdep.h:13, from /usr/src/kernels/2.6.18-194.el5-xen-x86_64/include/linux/spinlock_types.h:18, from /usr/src/kernels/2.6.18-194.el5-xen-x86_64/include/linux/spinlock.h:78, from /usr/src/kernels/2.6.18-194.el5-xen-x86_64/include/linux/module.h:10, from procfs1.cpp:6: /usr/src/kernels/2.6.18-194.el5-xen-x86_64/include/linux/list.h:1031:2: warning: #warning "don't include kernel headers in userspace" /usr/src/kernels/2.6.18-194.el5-xen-x86_64/include/linux/bitops.h: In function גint get_bitmask_order(unsigned int)ג: /usr/src/kernels/2.6.18-194.el5-xen-x86_64/include/linux/bitops.h:15: error: גflsג was not declared in this scope /usr/src/kernels/2.6.18-194.el5-xen-x86_64/include/linux/bitops.h: In function גint get_count_order(unsigned int)ג: /usr/src/kernels/2.6.18-194.el5-xen-x86_64/include/linux/bitops.h:23: error: גflsג was not declared in this scope /usr/src/kernels/2.6.18-194.el5-xen-x86_64/include/linux/bitops.h: In function גlong unsigned int hweight_long(long unsigned int)ג: /usr/src/kernels/2.6.18-194.el5-xen-x86_64/include/linux/bitops.h:31: error: גhweight32ג was not declared in this scope /usr/src/kernels/2.6.18-194.el5-xen-x86_64/include/linux/bitops.h:31: error: גhweight64ג was not declared in this scope /usr/src/kernels/2.6.18-194.el5-xen-x86_64/include/linux/bitops.h: In function גunsigned int fls_long(long unsigned int)ג: /usr/src/kernels/2.6.18-194.el5-xen-x86_64/include/linux/bitops.h:99: error: גflsג was not declared in this scope /usr/src/kernels/2.6.18-194.el5-xen-x86_64/include/linux/bitops.h:100: error: גfls64ג was not declared in this scope /usr/src/kernels/2.6.18-194.el5-xen-x86_64/include/linux/bitops.h: At global scope: /usr/src/kernels/2.6.18-194.el5-xen-x86_64/include/linux/bitops.h:103: error: ג__ffs64ג declared as an גinlineג variable /usr/src/kernels/2.6.18-194.el5-xen-x86_64/include/linux/bitops.h:103: error: גu64ג was not declared in this scope /usr/src/kernels/2.6.18-194.el5-xen-x86_64/include/linux/bitops.h:104: error: expected ג,ג or ג;ג before ג{ג token /usr/src/kernels/2.6.18-194.el5-xen-x86_64/include/asm/system.h:180: error: expected ג,ג or ג...ג before גnewג /usr/src/kernels/2.6.18-194.el5-xen-x86_64/include/asm/system.h: In function גlong unsigned int __cmpxchg(volatile void*, long unsigned int, long unsigned int)ג: /usr/src/kernels/2.6.18-194.el5-xen-x86_64/include/asm/system.h:183: error: גsizeג was not declared in this scope /usr/src/kernels/2.6.18-194.el5-xen-x86_64/include/asm/system.h:187: error: expected type-specifier before ג)ג token /usr/src/kernels/2.6.18-194.el5-xen-x86_64/include/asm/system.h:193: error: expected type-specifier before ג)ג token /usr/src/kernels/2.6.18-194.el5-xen-x86_64/include/asm/system.h:199: error: expected type-specifier before ג)ג token /usr/src/kernels/2.6.18-194.el5-xen-x86_64/include/asm/system.h:205: error: expected type-specifier before ג)ג token /usr/src/kernels/2.6.18-194.el5-xen-x86_64/include/linux/spinlock.h: In function גvoid smp_mb__after_lock()ג: /usr/src/kernels/2.6.18-194.el5-xen-x86_64/include/linux/spinlock.h:257: error: גbarrierג was not declared in this scope /usr/src/kernels/2.6.18-194.el5-xen-x86_64/include/linux/marker.h: At global scope: /usr/src/kernels/2.6.18-194.el5-xen-x86_64/include/linux/marker.h:33: error: גva_listג has not been declared /usr/src/kernels/2.6.18-194.el5-xen-x86_64/include/linux/percpu.h: In function גvoid* __alloc_percpu(size_t)ג: /usr/src/kernels/2.6.18-194.el5-xen-x86_64/include/linux/percpu.h:51: error: גGFP_KERNELג was not declared in this scope /usr/src/kernels/2.6.18-194.el5-xen-x86_64/include/linux/percpu.h:51: error: גkmallocג was not declared in this scope /usr/src/kernels/2.6.18-194.el5-xen-x86_64/include/linux/percpu.h:53: error: גmemsetג was not declared in this scope /usr/src/kernels/2.6.18-194.el5-xen-x86_64/include/linux/percpu.h: In function גvoid free_percpu(const void*)ג: /usr/src/kernels/2.6.18-194.el5-xen-x86_64/include/linux/percpu.h:58: error: גkfreeג was not declared in this scope /usr/src/kernels/2.6.18-194.el5-xen-x86_64/include/linux/module.h: At global scope: /usr/src/kernels/2.6.18-194.el5-xen-x86_64/include/linux/module.h:51: error: field גattrג has incomplete type /usr/src/kernels/2.6.18-194.el5-xen-x86_64/include/linux/module.h:62: error: field גkobjג has incomplete type /usr/src/kernels/2.6.18-194.el5-xen-x86_64/include/linux/proc_fs.h:79: error: field גlistג has incomplete type /usr/src/kernels/2.6.18-194.el5-xen-x86_64/include/linux/proc_fs.h:249: error: expected ג,ג or ג...ג before גnewג /usr/src/kernels/2.6.18-194.el5-xen-x86_64/include/linux/proc_fs.h:264: error: field גvfs_inodeג has incomplete type /usr/src/kernels/2.6.18-194.el5-xen-x86_64/include/linux/proc_fs.h: In function גproc_inode* PROC_I(const inode*)ג: /usr/src/kernels/2.6.18-194.el5-xen-x86_64/include/linux/proc_fs.h:269: error: expected primary-expression before גstructג /usr/src/kernels/2.6.18-194.el5-xen-x86_64/include/linux/proc_fs.h:269: error: גvfs_inodeג was not declared in this scope /usr/src/kernels/2.6.18-194.el5-xen-x86_64/include/linux/proc_fs.h:269: error: גcontainer_ofג was not declared in this scope procfs1.cpp: In function גint procfile_read(char*, char**, off_t, int, int*, void*)ג: procfs1.cpp:61: error: גKERN_INFOג was not declared in this scope procfs1.cpp:61: error: גprintkג was not declared in this scope procfs1.cpp:79: error: גsprintfג was not declared in this scope procfs1.cpp: In function גint init_module()ג: procfs1.cpp:91: error: גKERN_ALERTג was not declared in this scope procfs1.cpp:92: error: גprintkג was not declared in this scope procfs1.cpp:98: error: גS_IRUGOג was not declared in this scope procfs1.cpp:103: error: גKERN_INFOג was not declared in this scope procfs1.cpp:103: error: גprintkג was not declared in this scope procfs1.cpp: In function גvoid cleanup_module()ג: procfs1.cpp:110: error: גKERN_INFOג was not declared in this scope procfs1.cpp:110: error: גprintkג was not declared in this scope [root@SRV-00-035 home]#
