Fix mmap guest space and brk
Add FS/FD/RTC/KCOV ioctls -----BEGIN PGP SIGNATURE----- iQJGBAABCAAwFiEEzS913cjjpNwuT1Fz8ww4vT8vvjwFAl4pV5USHGxhdXJlbnRA dml2aWVyLmV1AAoJEPMMOL0/L748AZ4P/RYwVy3whF5FrmXYHu5RjUBamhYHhKHN 243xFtNl5p1i1KhR2gcvvCraUk8shWPlMc+gbBszTLB2EmxgdRH/BT2e4L8z8LcK 3kF4Fqcbo1wx9hbGUySGyklPF3dqHCT51+7gzV7VT0tD0mZgzv7u7Kwm/rWP0/Ne ei5m3va0dKa4GJByb24vPJecL5X45c5RWQ6y2ht7LbRWqpPABoHh+CgChkr5hDVj oHOxy9vV5SW6TPjcfsckR7/21Ah2vo2Hl5qPZARGx/miFNViWl4wjpR+oc/QwlzO ihySRETyTcefROgTdOljc2e5/6Wzh2i7hz7sl4IujyeiKlusFGUdQagrWXDkbjP5 AnEvjbmD/WSwVKOVsn2cveu5YMYGLe6B7zJoJolLkYw2Sqf+FG8T3TGTr93qmV6D 9EJ207CA2T29SsGMKvu5BYf4HVrV9MOgNdH8galuDPpVncp+R/sKCBk/Nmhr5jen wCsEYo/Sb2gU42XWwkg179VwBEibQb2uDe7P/sGNfldbt1NofPpIxUSyHkaqQSUE NnAC+kd9wIN2xBRYpvoVKsAahIsHIFAUOFOMI8IXiegD5212+cwbqJjUClGs1PGr NUG11JR4YP24kF83XRE1ht1IVpYD/Rn43LdI+U62JlA3xG+l3uVpZANc2Tl8ImOK ceWFsBbAFQHX =2qso -----END PGP SIGNATURE----- Merge remote-tracking branch 'remotes/vivier2/tags/linux-user-for-5.0-pull-request' into staging Fix mmap guest space and brk Add FS/FD/RTC/KCOV ioctls # gpg: Signature made Thu 23 Jan 2020 08:21:41 GMT # gpg: using RSA key CD2F75DDC8E3A4DC2E4F5173F30C38BD3F2FBE3C # gpg: issuer "laurent@vivier.eu" # gpg: Good signature from "Laurent Vivier <lvivier@redhat.com>" [full] # gpg: aka "Laurent Vivier <laurent@vivier.eu>" [full] # gpg: aka "Laurent Vivier (Red Hat) <lvivier@redhat.com>" [full] # Primary key fingerprint: CD2F 75DD C8E3 A4DC 2E4F 5173 F30C 38BD 3F2F BE3C * remotes/vivier2/tags/linux-user-for-5.0-pull-request: linux-user: Add support for read/clear RTC voltage low detector using ioctls linux-user: Add support for getting/setting RTC PLL correction using ioctls linux-user: Add support for getting/setting RTC wakeup alarm using ioctls linux-user: Add support for getting/setting RTC periodic interrupt and epoch using ioctls linux-user: Add support for getting/setting RTC time and alarm using ioctls linux-user: Add support for enabling/disabling RTC features using ioctls linux-user: Add support for TYPE_LONG and TYPE_ULONG in do_ioctl() linux-user: Add support for KCOV_INIT_TRACE ioctl linux-user: Add support for KCOV_<ENABLE|DISABLE> ioctls configure: Detect kcov support and introduce CONFIG_KCOV linux-user: Add support for FDFMT<BEG|TRK|END> ioctls linux-user: Add support for FD<SETEMSGTRESH|SETMAXERRS|GETMAXERRS> ioctls linux-user: Add support for FS_IOC32_<GET|SET>VERSION ioctls linux-user: Add support for FS_IOC32_<GET|SET>FLAGS ioctls linux-user: Add support for FS_IOC_<GET|SET>VERSION ioctls linux-user: Reserve space for brk linux-user:Fix align mistake when mmap guest space Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
This commit is contained in:
Peter Maydell
commit
b7c359c748
9
configure
vendored
9
configure
vendored
@ -4761,6 +4761,12 @@ if compile_prog "" "" ; then
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syncfs=yes
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fi
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# check for kcov support (kernel must be 4.4+, compiled with certain options)
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kcov=no
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if check_include sys/kcov.h ; then
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kcov=yes
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fi
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# Check we have a new enough version of sphinx-build
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has_sphinx_build() {
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# This is a bit awkward but works: create a trivial document and
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@ -6874,6 +6880,9 @@ fi
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if test "$syncfs" = "yes" ; then
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echo "CONFIG_SYNCFS=y" >> $config_host_mak
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fi
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if test "$kcov" = "yes" ; then
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echo "CONFIG_KCOV=y" >> $config_host_mak
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fi
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if test "$inotify" = "yes" ; then
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echo "CONFIG_INOTIFY=y" >> $config_host_mak
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fi
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@ -10,6 +10,7 @@
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#include "qemu/path.h"
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#include "qemu/queue.h"
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#include "qemu/guest-random.h"
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#include "qemu/units.h"
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#ifdef _ARCH_PPC64
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#undef ARCH_DLINFO
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@ -2191,7 +2192,7 @@ unsigned long init_guest_space(unsigned long host_start,
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* to where we need to put the commpage.
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*/
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munmap((void *)real_start, host_size);
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real_size = aligned_size + qemu_host_page_size;
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real_size = aligned_size + align;
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real_start = (unsigned long)
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mmap((void *)real_start, real_size, PROT_NONE, flags, -1, 0);
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if (real_start == (unsigned long)-1) {
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@ -2364,24 +2365,51 @@ static void load_elf_image(const char *image_name, int image_fd,
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}
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}
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load_addr = loaddr;
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if (ehdr->e_type == ET_DYN) {
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/* The image indicates that it can be loaded anywhere. Find a
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location that can hold the memory space required. If the
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image is pre-linked, LOADDR will be non-zero. Since we do
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not supply MAP_FIXED here we'll use that address if and
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only if it remains available. */
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load_addr = target_mmap(loaddr, hiaddr - loaddr, PROT_NONE,
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MAP_PRIVATE | MAP_ANON | MAP_NORESERVE,
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-1, 0);
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if (load_addr == -1) {
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goto exit_perror;
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if (pinterp_name != NULL) {
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/*
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* This is the main executable.
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*
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* Reserve extra space for brk.
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* We hold on to this space while placing the interpreter
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* and the stack, lest they be placed immediately after
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* the data segment and block allocation from the brk.
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*
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* 16MB is chosen as "large enough" without being so large
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* as to allow the result to not fit with a 32-bit guest on
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* a 32-bit host.
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*/
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info->reserve_brk = 16 * MiB;
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hiaddr += info->reserve_brk;
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if (ehdr->e_type == ET_EXEC) {
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/*
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* Make sure that the low address does not conflict with
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* MMAP_MIN_ADDR or the QEMU application itself.
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*/
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probe_guest_base(image_name, loaddr, hiaddr);
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}
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} else if (pinterp_name != NULL) {
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/* This is the main executable. Make sure that the low
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address does not conflict with MMAP_MIN_ADDR or the
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QEMU application itself. */
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probe_guest_base(image_name, loaddr, hiaddr);
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}
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/*
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* Reserve address space for all of this.
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*
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* In the case of ET_EXEC, we supply MAP_FIXED so that we get
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* exactly the address range that is required.
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*
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* Otherwise this is ET_DYN, and we are searching for a location
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* that can hold the memory space required. If the image is
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* pre-linked, LOADDR will be non-zero, and the kernel should
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* honor that address if it happens to be free.
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*
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* In both cases, we will overwrite pages in this range with mappings
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* from the executable.
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*/
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load_addr = target_mmap(loaddr, hiaddr - loaddr, PROT_NONE,
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MAP_PRIVATE | MAP_ANON | MAP_NORESERVE |
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(ehdr->e_type == ET_EXEC ? MAP_FIXED : 0),
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-1, 0);
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if (load_addr == -1) {
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goto exit_perror;
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}
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load_bias = load_addr - loaddr;
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@ -2860,6 +2888,17 @@ int load_elf_binary(struct linux_binprm *bprm, struct image_info *info)
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bprm->core_dump = &elf_core_dump;
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#endif
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/*
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* If we reserved extra space for brk, release it now.
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* The implementation of do_brk in syscalls.c expects to be able
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* to mmap pages in this space.
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*/
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if (info->reserve_brk) {
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abi_ulong start_brk = HOST_PAGE_ALIGN(info->brk);
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abi_ulong end_brk = HOST_PAGE_ALIGN(info->brk + info->reserve_brk);
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target_munmap(start_brk, end_brk - start_brk);
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}
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return 0;
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}
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@ -69,6 +69,29 @@
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IOCTL(KDSETLED, 0, TYPE_INT)
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IOCTL_SPECIAL(KDSIGACCEPT, 0, do_ioctl_kdsigaccept, TYPE_INT)
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IOCTL(RTC_AIE_ON, 0, TYPE_NULL)
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IOCTL(RTC_AIE_OFF, 0, TYPE_NULL)
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IOCTL(RTC_UIE_ON, 0, TYPE_NULL)
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IOCTL(RTC_UIE_OFF, 0, TYPE_NULL)
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IOCTL(RTC_PIE_ON, 0, TYPE_NULL)
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IOCTL(RTC_PIE_OFF, 0, TYPE_NULL)
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IOCTL(RTC_WIE_ON, 0, TYPE_NULL)
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IOCTL(RTC_WIE_OFF, 0, TYPE_NULL)
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IOCTL(RTC_ALM_READ, IOC_R, MK_PTR(MK_STRUCT(STRUCT_rtc_time)))
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IOCTL(RTC_ALM_SET, IOC_W, MK_PTR(MK_STRUCT(STRUCT_rtc_time)))
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IOCTL(RTC_RD_TIME, IOC_R, MK_PTR(MK_STRUCT(STRUCT_rtc_time)))
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IOCTL(RTC_SET_TIME, IOC_W, MK_PTR(MK_STRUCT(STRUCT_rtc_time)))
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IOCTL(RTC_IRQP_READ, IOC_R, MK_PTR(TYPE_ULONG))
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IOCTL(RTC_IRQP_SET, IOC_W, TYPE_ULONG)
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IOCTL(RTC_EPOCH_READ, IOC_R, MK_PTR(TYPE_ULONG))
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IOCTL(RTC_EPOCH_SET, IOC_W, TYPE_ULONG)
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IOCTL(RTC_WKALM_RD, IOC_R, MK_PTR(MK_STRUCT(STRUCT_rtc_wkalrm)))
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IOCTL(RTC_WKALM_SET, IOC_W, MK_PTR(MK_STRUCT(STRUCT_rtc_wkalrm)))
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IOCTL(RTC_PLL_GET, IOC_R, MK_PTR(MK_STRUCT(STRUCT_rtc_pll_info)))
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IOCTL(RTC_PLL_SET, IOC_W, MK_PTR(MK_STRUCT(STRUCT_rtc_pll_info)))
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IOCTL(RTC_VL_READ, IOC_R, MK_PTR(TYPE_INT))
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IOCTL(RTC_VL_CLR, 0, TYPE_NULL)
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IOCTL(BLKROSET, IOC_W, MK_PTR(TYPE_INT))
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IOCTL(BLKROGET, IOC_R, MK_PTR(TYPE_INT))
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IOCTL(BLKRRPART, 0, TYPE_NULL)
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@ -114,7 +137,13 @@
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IOCTL(FDMSGON, 0, TYPE_NULL)
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IOCTL(FDMSGOFF, 0, TYPE_NULL)
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IOCTL(FDSETEMSGTRESH, 0, TYPE_NULL)
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IOCTL(FDFMTBEG, 0, TYPE_NULL)
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IOCTL(FDFMTTRK, IOC_W, MK_PTR(MK_STRUCT(STRUCT_format_descr)))
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IOCTL(FDFMTEND, 0, TYPE_NULL)
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IOCTL(FDFLUSH, 0, TYPE_NULL)
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IOCTL(FDSETMAXERRS, IOC_W, MK_PTR(MK_STRUCT(STRUCT_floppy_max_errors)))
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IOCTL(FDGETMAXERRS, IOC_R, MK_PTR(MK_STRUCT(STRUCT_floppy_max_errors)))
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IOCTL(FDRESET, 0, TYPE_NULL)
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IOCTL(FDRAWCMD, 0, TYPE_NULL)
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IOCTL(FDTWADDLE, 0, TYPE_NULL)
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@ -138,6 +167,12 @@
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IOCTL(FS_IOC_GETFLAGS, IOC_R, MK_PTR(TYPE_INT))
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IOCTL(FS_IOC_SETFLAGS, IOC_W, MK_PTR(TYPE_INT))
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IOCTL(FS_IOC_GETVERSION, IOC_R, MK_PTR(TYPE_INT))
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IOCTL(FS_IOC_SETVERSION, IOC_W, MK_PTR(TYPE_INT))
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IOCTL(FS_IOC32_GETFLAGS, IOC_R, MK_PTR(TYPE_INT))
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IOCTL(FS_IOC32_SETFLAGS, IOC_W, MK_PTR(TYPE_INT))
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IOCTL(FS_IOC32_GETVERSION, IOC_R, MK_PTR(TYPE_INT))
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IOCTL(FS_IOC32_SETVERSION, IOC_W, MK_PTR(TYPE_INT))
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#ifdef CONFIG_USBFS
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/* USB ioctls */
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@ -522,3 +557,9 @@
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IOCTL_IGNORE(TIOCSTART)
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IOCTL_IGNORE(TIOCSTOP)
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#endif
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#ifdef CONFIG_KCOV
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IOCTL(KCOV_ENABLE, 0, TYPE_NULL)
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IOCTL(KCOV_DISABLE, 0, TYPE_NULL)
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IOCTL(KCOV_INIT_TRACE, IOC_R, TYPE_ULONG)
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#endif
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@ -35,6 +35,7 @@ struct image_info {
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abi_ulong end_data;
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abi_ulong start_brk;
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abi_ulong brk;
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abi_ulong reserve_brk;
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abi_ulong start_mmap;
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abi_ulong start_stack;
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abi_ulong stack_limit;
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@ -73,6 +73,9 @@
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#ifdef CONFIG_SENDFILE
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#include <sys/sendfile.h>
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#endif
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#ifdef CONFIG_KCOV
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#include <sys/kcov.h>
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#endif
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#define termios host_termios
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#define winsize host_winsize
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@ -107,6 +110,7 @@
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#include <netpacket/packet.h>
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#include <linux/netlink.h>
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#include <linux/if_alg.h>
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#include <linux/rtc.h>
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#include "linux_loop.h"
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#include "uname.h"
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@ -5175,6 +5179,8 @@ static abi_long do_ioctl(int fd, int cmd, abi_long arg)
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break;
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case TYPE_PTRVOID:
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case TYPE_INT:
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case TYPE_LONG:
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case TYPE_ULONG:
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ret = get_errno(safe_ioctl(fd, ie->host_cmd, arg));
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break;
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case TYPE_PTR:
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@ -763,6 +763,42 @@ struct target_pollfd {
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#define TARGET_KDSETLED 0x4B32 /* set led state [lights, not flags] */
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#define TARGET_KDSIGACCEPT 0x4B4E
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struct target_rtc_pll_info {
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int pll_ctrl;
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int pll_value;
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int pll_max;
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int pll_min;
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int pll_posmult;
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int pll_negmult;
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abi_long pll_clock;
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};
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/* real time clock ioctls */
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#define TARGET_RTC_AIE_ON TARGET_IO('p', 0x01)
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#define TARGET_RTC_AIE_OFF TARGET_IO('p', 0x02)
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#define TARGET_RTC_UIE_ON TARGET_IO('p', 0x03)
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#define TARGET_RTC_UIE_OFF TARGET_IO('p', 0x04)
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#define TARGET_RTC_PIE_ON TARGET_IO('p', 0x05)
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#define TARGET_RTC_PIE_OFF TARGET_IO('p', 0x06)
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#define TARGET_RTC_WIE_ON TARGET_IO('p', 0x0f)
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#define TARGET_RTC_WIE_OFF TARGET_IO('p', 0x10)
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#define TARGET_RTC_ALM_READ TARGET_IOR('p', 0x08, struct rtc_time)
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#define TARGET_RTC_ALM_SET TARGET_IOW('p', 0x07, struct rtc_time)
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#define TARGET_RTC_RD_TIME TARGET_IOR('p', 0x09, struct rtc_time)
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#define TARGET_RTC_SET_TIME TARGET_IOW('p', 0x0a, struct rtc_time)
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#define TARGET_RTC_IRQP_READ TARGET_IOR('p', 0x0b, abi_ulong)
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#define TARGET_RTC_IRQP_SET TARGET_IOW('p', 0x0c, abi_ulong)
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#define TARGET_RTC_EPOCH_READ TARGET_IOR('p', 0x0d, abi_ulong)
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#define TARGET_RTC_EPOCH_SET TARGET_IOW('p', 0x0e, abi_ulong)
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#define TARGET_RTC_WKALM_RD TARGET_IOR('p', 0x10, struct rtc_wkalrm)
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#define TARGET_RTC_WKALM_SET TARGET_IOW('p', 0x0f, struct rtc_wkalrm)
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#define TARGET_RTC_PLL_GET TARGET_IOR('p', 0x11, \
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struct target_rtc_pll_info)
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#define TARGET_RTC_PLL_SET TARGET_IOW('p', 0x12, \
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struct target_rtc_pll_info)
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#define TARGET_RTC_VL_READ TARGET_IOR('p', 0x13, int)
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#define TARGET_RTC_VL_CLR TARGET_IO('p', 0x14)
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#if defined(TARGET_ALPHA) || defined(TARGET_MIPS) || defined(TARGET_SH4) || \
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defined(TARGET_XTENSA)
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#define TARGET_FIOGETOWN TARGET_IOR('f', 123, int)
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@ -899,7 +935,13 @@ struct target_pollfd {
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#define TARGET_FDMSGON TARGET_IO(2, 0x45)
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#define TARGET_FDMSGOFF TARGET_IO(2, 0x46)
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#define TARGET_FDFMTBEG TARGET_IO(2, 0x47)
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#define TARGET_FDFMTTRK TARGET_IOW(2, 0x48, struct format_descr)
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#define TARGET_FDFMTEND TARGET_IO(2, 0x49)
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#define TARGET_FDSETEMSGTRESH TARGET_IO(2, 0x4a)
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#define TARGET_FDFLUSH TARGET_IO(2, 0x4b)
|
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#define TARGET_FDSETMAXERRS TARGET_IOW(2, 0x4c, struct floppy_max_errors)
|
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#define TARGET_FDGETMAXERRS TARGET_IOR(2, 0x0e, struct floppy_max_errors)
|
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#define TARGET_FDRESET TARGET_IO(2, 0x54)
|
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#define TARGET_FDRAWCMD TARGET_IO(2, 0x58)
|
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#define TARGET_FDTWADDLE TARGET_IO(2, 0x59)
|
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@ -911,13 +953,19 @@ struct target_pollfd {
|
||||
#define TARGET_FICLONE TARGET_IOW(0x94, 9, int)
|
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#define TARGET_FICLONERANGE TARGET_IOW(0x94, 13, struct file_clone_range)
|
||||
|
||||
/* Note that the ioctl numbers claim type "long" but the actual type
|
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* used by the kernel is "int".
|
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/*
|
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* Note that the ioctl numbers for FS_IOC_<GET|SET><FLAGS|VERSION>
|
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* claim type "long" but the actual type used by the kernel is "int".
|
||||
*/
|
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#define TARGET_FS_IOC_GETFLAGS TARGET_IOR('f', 1, abi_long)
|
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#define TARGET_FS_IOC_SETFLAGS TARGET_IOW('f', 2, abi_long)
|
||||
|
||||
#define TARGET_FS_IOC_GETVERSION TARGET_IOR('v', 1, abi_long)
|
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#define TARGET_FS_IOC_SETVERSION TARGET_IOW('v', 2, abi_long)
|
||||
#define TARGET_FS_IOC_FIEMAP TARGET_IOWR('f',11,struct fiemap)
|
||||
#define TARGET_FS_IOC32_GETFLAGS TARGET_IOR('f', 1, int)
|
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#define TARGET_FS_IOC32_SETFLAGS TARGET_IOW('f', 2, int)
|
||||
#define TARGET_FS_IOC32_GETVERSION TARGET_IOR('v', 1, int)
|
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#define TARGET_FS_IOC32_SETVERSION TARGET_IOW('v', 2, int)
|
||||
|
||||
/* usb ioctls */
|
||||
#define TARGET_USBDEVFS_CONTROL TARGET_IOWRU('U', 0)
|
||||
@ -2422,6 +2470,11 @@ struct target_mtpos {
|
||||
#define TARGET_MTIOCGET TARGET_IOR('m', 2, struct target_mtget)
|
||||
#define TARGET_MTIOCPOS TARGET_IOR('m', 3, struct target_mtpos)
|
||||
|
||||
/* kcov ioctls */
|
||||
#define TARGET_KCOV_ENABLE TARGET_IO('c', 100)
|
||||
#define TARGET_KCOV_DISABLE TARGET_IO('c', 101)
|
||||
#define TARGET_KCOV_INIT_TRACE TARGET_IOR('c', 1, abi_ulong)
|
||||
|
||||
struct target_sysinfo {
|
||||
abi_long uptime; /* Seconds since boot */
|
||||
abi_ulong loads[3]; /* 1, 5, and 15 minute load averages */
|
||||
|
||||
@ -255,12 +255,49 @@ STRUCT(blkpg_partition,
|
||||
MK_ARRAY(TYPE_CHAR, BLKPG_DEVNAMELTH), /* devname */
|
||||
MK_ARRAY(TYPE_CHAR, BLKPG_VOLNAMELTH)) /* volname */
|
||||
|
||||
STRUCT(rtc_time,
|
||||
TYPE_INT, /* tm_sec */
|
||||
TYPE_INT, /* tm_min */
|
||||
TYPE_INT, /* tm_hour */
|
||||
TYPE_INT, /* tm_mday */
|
||||
TYPE_INT, /* tm_mon */
|
||||
TYPE_INT, /* tm_year */
|
||||
TYPE_INT, /* tm_wday */
|
||||
TYPE_INT, /* tm_yday */
|
||||
TYPE_INT) /* tm_isdst */
|
||||
|
||||
STRUCT(rtc_wkalrm,
|
||||
TYPE_CHAR, /* enabled */
|
||||
TYPE_CHAR, /* pending */
|
||||
MK_STRUCT(STRUCT_rtc_time)) /* time */
|
||||
|
||||
STRUCT(rtc_pll_info,
|
||||
TYPE_INT, /* pll_ctrl */
|
||||
TYPE_INT, /* pll_value */
|
||||
TYPE_INT, /* pll_max */
|
||||
TYPE_INT, /* pll_min */
|
||||
TYPE_INT, /* pll_posmult */
|
||||
TYPE_INT, /* pll_negmult */
|
||||
TYPE_LONG) /* pll_clock */
|
||||
|
||||
STRUCT(blkpg_ioctl_arg,
|
||||
TYPE_INT, /* op */
|
||||
TYPE_INT, /* flags */
|
||||
TYPE_INT, /* datalen */
|
||||
TYPE_PTRVOID) /* data */
|
||||
|
||||
STRUCT(format_descr,
|
||||
TYPE_INT, /* device */
|
||||
TYPE_INT, /* head */
|
||||
TYPE_INT) /* track */
|
||||
|
||||
STRUCT(floppy_max_errors,
|
||||
TYPE_INT, /* abort */
|
||||
TYPE_INT, /* read_track */
|
||||
TYPE_INT, /* reset */
|
||||
TYPE_INT, /* recal */
|
||||
TYPE_INT) /* reporting */
|
||||
|
||||
#if defined(CONFIG_USBFS)
|
||||
/* usb device ioctls */
|
||||
STRUCT(usbdevfs_ctrltransfer,
|
||||
|
||||
Loading…
Reference in New Issue
Block a user