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https://github.com/xemu-project/xemu.git
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7d37435bd5
Most files that have TABs only contain a handful of them. Change them to spaces so that we don't confuse people. disas, standard-headers, linux-headers and libdecnumber are imported from other projects and probably should be exempted from the check. Outside those, after this patch the following files still contain both 8-space and TAB sequences at the beginning of the line. Many of them have a majority of TABs, or were initially committed with all tabs. bsd-user/i386/target_syscall.h bsd-user/x86_64/target_syscall.h crypto/aes.c hw/audio/fmopl.c hw/audio/fmopl.h hw/block/tc58128.c hw/display/cirrus_vga.c hw/display/xenfb.c hw/dma/etraxfs_dma.c hw/intc/sh_intc.c hw/misc/mst_fpga.c hw/net/pcnet.c hw/sh4/sh7750.c hw/timer/m48t59.c hw/timer/sh_timer.c include/crypto/aes.h include/disas/bfd.h include/hw/sh4/sh.h libdecnumber/decNumber.c linux-headers/asm-generic/unistd.h linux-headers/linux/kvm.h linux-user/alpha/target_syscall.h linux-user/arm/nwfpe/double_cpdo.c linux-user/arm/nwfpe/fpa11_cpdt.c linux-user/arm/nwfpe/fpa11_cprt.c linux-user/arm/nwfpe/fpa11.h linux-user/flat.h linux-user/flatload.c linux-user/i386/target_syscall.h linux-user/ppc/target_syscall.h linux-user/sparc/target_syscall.h linux-user/syscall.c linux-user/syscall_defs.h linux-user/x86_64/target_syscall.h slirp/cksum.c slirp/if.c slirp/ip.h slirp/ip_icmp.c slirp/ip_icmp.h slirp/ip_input.c slirp/ip_output.c slirp/mbuf.c slirp/misc.c slirp/sbuf.c slirp/socket.c slirp/socket.h slirp/tcp_input.c slirp/tcpip.h slirp/tcp_output.c slirp/tcp_subr.c slirp/tcp_timer.c slirp/tftp.c slirp/udp.c slirp/udp.h target/cris/cpu.h target/cris/mmu.c target/cris/op_helper.c target/sh4/helper.c target/sh4/op_helper.c target/sh4/translate.c tcg/sparc/tcg-target.inc.c tests/tcg/cris/check_addo.c tests/tcg/cris/check_moveq.c tests/tcg/cris/check_swap.c tests/tcg/multiarch/test-mmap.c ui/vnc-enc-hextile-template.h ui/vnc-enc-zywrle.h util/envlist.c util/readline.c The following have only TABs: bsd-user/i386/target_signal.h bsd-user/sparc64/target_signal.h bsd-user/sparc64/target_syscall.h bsd-user/sparc/target_signal.h bsd-user/sparc/target_syscall.h bsd-user/x86_64/target_signal.h crypto/desrfb.c hw/audio/intel-hda-defs.h hw/core/uboot_image.h hw/sh4/sh7750_regnames.c hw/sh4/sh7750_regs.h include/hw/cris/etraxfs_dma.h linux-user/alpha/termbits.h linux-user/arm/nwfpe/fpopcode.h linux-user/arm/nwfpe/fpsr.h linux-user/arm/syscall_nr.h linux-user/arm/target_signal.h linux-user/cris/target_signal.h linux-user/i386/target_signal.h linux-user/linux_loop.h linux-user/m68k/target_signal.h linux-user/microblaze/target_signal.h linux-user/mips64/target_signal.h linux-user/mips/target_signal.h linux-user/mips/target_syscall.h linux-user/mips/termbits.h linux-user/ppc/target_signal.h linux-user/sh4/target_signal.h linux-user/sh4/termbits.h linux-user/sparc64/target_syscall.h linux-user/sparc/target_signal.h linux-user/x86_64/target_signal.h linux-user/x86_64/termbits.h pc-bios/optionrom/optionrom.h slirp/mbuf.h slirp/misc.h slirp/sbuf.h slirp/tcp.h slirp/tcp_timer.h slirp/tcp_var.h target/i386/svm.h target/sparc/asi.h target/xtensa/core-dc232b/xtensa-modules.inc.c target/xtensa/core-dc233c/xtensa-modules.inc.c target/xtensa/core-de212/core-isa.h target/xtensa/core-de212/xtensa-modules.inc.c target/xtensa/core-fsf/xtensa-modules.inc.c target/xtensa/core-sample_controller/core-isa.h target/xtensa/core-sample_controller/xtensa-modules.inc.c target/xtensa/core-test_kc705_be/core-isa.h target/xtensa/core-test_kc705_be/xtensa-modules.inc.c tests/tcg/cris/check_abs.c tests/tcg/cris/check_addc.c tests/tcg/cris/check_addcm.c tests/tcg/cris/check_addoq.c tests/tcg/cris/check_bound.c tests/tcg/cris/check_ftag.c tests/tcg/cris/check_int64.c tests/tcg/cris/check_lz.c tests/tcg/cris/check_openpf5.c tests/tcg/cris/check_sigalrm.c tests/tcg/cris/crisutils.h tests/tcg/cris/sys.c tests/tcg/i386/test-i386-ssse3.c ui/vgafont.h Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Message-Id: <20181213223737.11793-3-pbonzini@redhat.com> Reviewed-by: Aleksandar Markovic <amarkovic@wavecomp.com> Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com> Reviewed-by: Wainer dos Santos Moschetta <wainersm@redhat.com> Acked-by: Richard Henderson <richard.henderson@linaro.org> Acked-by: Eric Blake <eblake@redhat.com> Acked-by: David Gibson <david@gibson.dropbear.id.au> Reviewed-by: Stefan Markovic <smarkovic@wavecomp.com> Reviewed-by: Michael S. Tsirkin <mst@redhat.com> Reviewed-by: Alex Bennée <alex.bennee@linaro.org> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
168 lines
4.0 KiB
C
168 lines
4.0 KiB
C
/* Code for loading Linux executables. Mostly linux kernel code. */
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#include "qemu/osdep.h"
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#include "qemu.h"
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#define NGROUPS 32
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/* ??? This should really be somewhere else. */
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abi_long memcpy_to_target(abi_ulong dest, const void *src,
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unsigned long len)
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{
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void *host_ptr;
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host_ptr = lock_user(VERIFY_WRITE, dest, len, 0);
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if (!host_ptr)
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return -TARGET_EFAULT;
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memcpy(host_ptr, src, len);
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unlock_user(host_ptr, dest, 1);
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return 0;
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}
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static int count(char ** vec)
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{
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int i;
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for(i = 0; *vec; i++) {
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vec++;
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}
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return(i);
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}
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static int prepare_binprm(struct linux_binprm *bprm)
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{
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struct stat st;
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int mode;
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int retval;
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if(fstat(bprm->fd, &st) < 0) {
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return(-errno);
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}
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mode = st.st_mode;
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if(!S_ISREG(mode)) { /* Must be regular file */
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return(-EACCES);
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}
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if(!(mode & 0111)) { /* Must have at least one execute bit set */
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return(-EACCES);
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}
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bprm->e_uid = geteuid();
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bprm->e_gid = getegid();
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/* Set-uid? */
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if(mode & S_ISUID) {
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bprm->e_uid = st.st_uid;
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}
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/* Set-gid? */
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/*
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* If setgid is set but no group execute bit then this
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* is a candidate for mandatory locking, not a setgid
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* executable.
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*/
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if ((mode & (S_ISGID | S_IXGRP)) == (S_ISGID | S_IXGRP)) {
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bprm->e_gid = st.st_gid;
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}
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retval = read(bprm->fd, bprm->buf, BPRM_BUF_SIZE);
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if (retval < 0) {
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perror("prepare_binprm");
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exit(-1);
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}
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if (retval < BPRM_BUF_SIZE) {
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/* Make sure the rest of the loader won't read garbage. */
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memset(bprm->buf + retval, 0, BPRM_BUF_SIZE - retval);
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}
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return retval;
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}
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/* Construct the envp and argv tables on the target stack. */
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abi_ulong loader_build_argptr(int envc, int argc, abi_ulong sp,
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abi_ulong stringp, int push_ptr)
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{
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TaskState *ts = (TaskState *)thread_cpu->opaque;
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int n = sizeof(abi_ulong);
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abi_ulong envp;
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abi_ulong argv;
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sp -= (envc + 1) * n;
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envp = sp;
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sp -= (argc + 1) * n;
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argv = sp;
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if (push_ptr) {
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/* FIXME - handle put_user() failures */
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sp -= n;
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put_user_ual(envp, sp);
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sp -= n;
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put_user_ual(argv, sp);
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}
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sp -= n;
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/* FIXME - handle put_user() failures */
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put_user_ual(argc, sp);
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ts->info->arg_start = stringp;
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while (argc-- > 0) {
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/* FIXME - handle put_user() failures */
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put_user_ual(stringp, argv);
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argv += n;
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stringp += target_strlen(stringp) + 1;
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}
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ts->info->arg_end = stringp;
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/* FIXME - handle put_user() failures */
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put_user_ual(0, argv);
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while (envc-- > 0) {
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/* FIXME - handle put_user() failures */
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put_user_ual(stringp, envp);
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envp += n;
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stringp += target_strlen(stringp) + 1;
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}
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/* FIXME - handle put_user() failures */
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put_user_ual(0, envp);
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return sp;
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}
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int loader_exec(int fdexec, const char *filename, char **argv, char **envp,
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struct target_pt_regs * regs, struct image_info *infop,
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struct linux_binprm *bprm)
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{
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int retval;
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bprm->fd = fdexec;
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bprm->filename = (char *)filename;
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bprm->argc = count(argv);
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bprm->argv = argv;
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bprm->envc = count(envp);
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bprm->envp = envp;
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retval = prepare_binprm(bprm);
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if(retval>=0) {
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if (bprm->buf[0] == 0x7f
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&& bprm->buf[1] == 'E'
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&& bprm->buf[2] == 'L'
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&& bprm->buf[3] == 'F') {
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retval = load_elf_binary(bprm, infop);
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#if defined(TARGET_HAS_BFLT)
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} else if (bprm->buf[0] == 'b'
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&& bprm->buf[1] == 'F'
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&& bprm->buf[2] == 'L'
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&& bprm->buf[3] == 'T') {
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retval = load_flt_binary(bprm, infop);
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#endif
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} else {
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return -ENOEXEC;
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}
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}
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if(retval>=0) {
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/* success. Initialize important registers */
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do_init_thread(regs, infop);
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return retval;
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}
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return(retval);
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}
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