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authorRajithaY <rajithax.yerrumsetty@intel.com>2017-04-25 03:31:15 -0700
committerRajitha Yerrumchetty <rajithax.yerrumsetty@intel.com>2017-05-22 06:48:08 +0000
commitbb756eebdac6fd24e8919e2c43f7d2c8c4091f59 (patch)
treeca11e03542edf2d8f631efeca5e1626d211107e3 /qemu/linux-user/linuxload.c
parenta14b48d18a9ed03ec191cf16b162206998a895ce (diff)
Adding qemu as a submodule of KVMFORNFV
This Patch includes the changes to add qemu as a submodule to kvmfornfv repo and make use of the updated latest qemu for the execution of all testcase Change-Id: I1280af507a857675c7f81d30c95255635667bdd7 Signed-off-by:RajithaY<rajithax.yerrumsetty@intel.com>
Diffstat (limited to 'qemu/linux-user/linuxload.c')
-rw-r--r--qemu/linux-user/linuxload.c167
1 files changed, 0 insertions, 167 deletions
diff --git a/qemu/linux-user/linuxload.c b/qemu/linux-user/linuxload.c
deleted file mode 100644
index 6f0d6054c..000000000
--- a/qemu/linux-user/linuxload.c
+++ /dev/null
@@ -1,167 +0,0 @@
-/* Code for loading Linux executables. Mostly linux kernel code. */
-
-#include "qemu/osdep.h"
-
-#include "qemu.h"
-
-#define NGROUPS 32
-
-/* ??? This should really be somewhere else. */
-abi_long memcpy_to_target(abi_ulong dest, const void *src,
- unsigned long len)
-{
- void *host_ptr;
-
- host_ptr = lock_user(VERIFY_WRITE, dest, len, 0);
- if (!host_ptr)
- return -TARGET_EFAULT;
- memcpy(host_ptr, src, len);
- unlock_user(host_ptr, dest, 1);
- return 0;
-}
-
-static int count(char ** vec)
-{
- int i;
-
- for(i = 0; *vec; i++) {
- vec++;
- }
-
- return(i);
-}
-
-static int prepare_binprm(struct linux_binprm *bprm)
-{
- struct stat st;
- int mode;
- int retval;
-
- if(fstat(bprm->fd, &st) < 0) {
- return(-errno);
- }
-
- mode = st.st_mode;
- if(!S_ISREG(mode)) { /* Must be regular file */
- return(-EACCES);
- }
- if(!(mode & 0111)) { /* Must have at least one execute bit set */
- return(-EACCES);
- }
-
- bprm->e_uid = geteuid();
- bprm->e_gid = getegid();
-
- /* Set-uid? */
- if(mode & S_ISUID) {
- bprm->e_uid = st.st_uid;
- }
-
- /* Set-gid? */
- /*
- * If setgid is set but no group execute bit then this
- * is a candidate for mandatory locking, not a setgid
- * executable.
- */
- if ((mode & (S_ISGID | S_IXGRP)) == (S_ISGID | S_IXGRP)) {
- bprm->e_gid = st.st_gid;
- }
-
- retval = read(bprm->fd, bprm->buf, BPRM_BUF_SIZE);
- if (retval < 0) {
- perror("prepare_binprm");
- exit(-1);
- }
- if (retval < BPRM_BUF_SIZE) {
- /* Make sure the rest of the loader won't read garbage. */
- memset(bprm->buf + retval, 0, BPRM_BUF_SIZE - retval);
- }
- return retval;
-}
-
-/* Construct the envp and argv tables on the target stack. */
-abi_ulong loader_build_argptr(int envc, int argc, abi_ulong sp,
- abi_ulong stringp, int push_ptr)
-{
- TaskState *ts = (TaskState *)thread_cpu->opaque;
- int n = sizeof(abi_ulong);
- abi_ulong envp;
- abi_ulong argv;
-
- sp -= (envc + 1) * n;
- envp = sp;
- sp -= (argc + 1) * n;
- argv = sp;
- if (push_ptr) {
- /* FIXME - handle put_user() failures */
- sp -= n;
- put_user_ual(envp, sp);
- sp -= n;
- put_user_ual(argv, sp);
- }
- sp -= n;
- /* FIXME - handle put_user() failures */
- put_user_ual(argc, sp);
- ts->info->arg_start = stringp;
- while (argc-- > 0) {
- /* FIXME - handle put_user() failures */
- put_user_ual(stringp, argv);
- argv += n;
- stringp += target_strlen(stringp) + 1;
- }
- ts->info->arg_end = stringp;
- /* FIXME - handle put_user() failures */
- put_user_ual(0, argv);
- while (envc-- > 0) {
- /* FIXME - handle put_user() failures */
- put_user_ual(stringp, envp);
- envp += n;
- stringp += target_strlen(stringp) + 1;
- }
- /* FIXME - handle put_user() failures */
- put_user_ual(0, envp);
-
- return sp;
-}
-
-int loader_exec(int fdexec, const char *filename, char **argv, char **envp,
- struct target_pt_regs * regs, struct image_info *infop,
- struct linux_binprm *bprm)
-{
- int retval;
-
- bprm->fd = fdexec;
- bprm->filename = (char *)filename;
- bprm->argc = count(argv);
- bprm->argv = argv;
- bprm->envc = count(envp);
- bprm->envp = envp;
-
- retval = prepare_binprm(bprm);
-
- if(retval>=0) {
- if (bprm->buf[0] == 0x7f
- && bprm->buf[1] == 'E'
- && bprm->buf[2] == 'L'
- && bprm->buf[3] == 'F') {
- retval = load_elf_binary(bprm, infop);
-#if defined(TARGET_HAS_BFLT)
- } else if (bprm->buf[0] == 'b'
- && bprm->buf[1] == 'F'
- && bprm->buf[2] == 'L'
- && bprm->buf[3] == 'T') {
- retval = load_flt_binary(bprm, infop);
-#endif
- } else {
- return -ENOEXEC;
- }
- }
-
- if(retval>=0) {
- /* success. Initialize important registers */
- do_init_thread(regs, infop);
- return retval;
- }
-
- return(retval);
-}