e4b3323f61
https://source.android.com/docs/security/bulletin/2023-04-01 CVE-2022-4696 CVE-2023-20941 * tag 'ASB-2023-04-05_4.19-stable' of https://android.googlesource.com/kernel/common: UPSTREAM: ext4: fix kernel BUG in 'ext4_write_inline_data_end()' UPSTREAM: fsverity: don't drop pagecache at end of FS_IOC_ENABLE_VERITY UPSTREAM: fsverity: Remove WQ_UNBOUND from fsverity read workqueue BACKPORT: blk-mq: clear stale request in tags->rq[] before freeing one request pool Linux 4.19.279 HID: uhid: Over-ride the default maximum data buffer value with our own HID: core: Provide new max_buffer_size attribute to over-ride the default serial: 8250_em: Fix UART port type drm/i915: Don't use stolen memory for ring buffers with LLC x86/mm: Fix use of uninitialized buffer in sme_enable() fbdev: stifb: Provide valid pixelclock and add fb_check_var() checks ftrace: Fix invalid address access in lookup_rec() when index is 0 tracing: Make tracepoint lockdep check actually test something tracing: Check field value in hist_field_name() sh: intc: Avoid spurious sizeof-pointer-div warning drm/amdkfd: Fix an illegal memory access ext4: fix task hung in ext4_xattr_delete_inode ext4: fail ext4_iget if special inode unallocated jffs2: correct logic when creating a hole in jffs2_write_begin mmc: atmel-mci: fix race between stop command and start of next command media: m5mols: fix off-by-one loop termination error hwmon: (xgene) Fix use after free bug in xgene_hwmon_remove due to race condition hwmon: (adt7475) Fix masking of hysteresis registers hwmon: (adt7475) Display smoothing attributes in correct order ethernet: sun: add check for the mdesc_grab() net/iucv: Fix size of interrupt data net: usb: smsc75xx: Move packet length check to prevent kernel panic in skb_pull ipv4: Fix incorrect table ID in IOCTL path block: sunvdc: add check for mdesc_grab() returning NULL nvmet: avoid potential UAF in nvmet_req_complete() net: usb: smsc75xx: Limit packet length to skb->len nfc: st-nci: Fix use after free bug in ndlc_remove due to race condition net: phy: smsc: bail out in lan87xx_read_status if genphy_read_status fails net: tunnels: annotate lockless accesses to dev->needed_headroom qed/qed_dev: guard against a possible division by zero nfc: pn533: initialize struct pn533_out_arg properly tcp: tcp_make_synack() can be called from process context clk: HI655X: select REGMAP instead of depending on it fs: sysfs_emit_at: Remove PAGE_SIZE alignment check ext4: fix cgroup writeback accounting with fs-layer encryption UPSTREAM: ext4: fix another off-by-one fsmap error on 1k block filesystems Linux 4.19.278 ila: do not generate empty messages in ila_xlat_nl_cmd_get_mapping() nfc: fdp: add null check of devm_kmalloc_array in fdp_nci_i2c_read_device_properties net: caif: Fix use-after-free in cfusbl_device_notify() drm/i915: Don't use BAR mappings for ring buffers with LLC tipc: improve function tipc_wait_for_cond() media: ov5640: Fix analogue gain control PCI: Add SolidRun vendor ID macintosh: windfarm: Use unsigned type for 1-bit bitfields alpha: fix R_ALPHA_LITERAL reloc for large modules MIPS: Fix a compilation issue Revert "spi: mt7621: Fix an error message in mt7621_spi_probe()" scsi: core: Remove the /proc/scsi/${proc_name} directory earlier kbuild: generate modules.order only in directories visited by obj-y/m kbuild: fix false-positive need-builtin calculation udf: Detect system inodes linked into directory hierarchy udf: Preserve link count of system files udf: Remove pointless union in udf_inode_info udf: reduce leakage of blocks related to named streams udf: Explain handling of load_nls() failure nfc: change order inside nfc_se_io error path ext4: zero i_disksize when initializing the bootloader inode ext4: fix WARNING in ext4_update_inline_data ext4: move where set the MAY_INLINE_DATA flag is set ext4: fix another off-by-one fsmap error on 1k block filesystems ext4: fix RENAME_WHITEOUT handling for inline directories x86/CPU/AMD: Disable XSAVES on AMD family 0x17 fs: prevent out-of-bounds array speculation when closing a file descriptor Linux 4.19.277 staging: rtl8192e: Remove call_usermodehelper starting RadioPower.sh staging: rtl8192e: Remove function ..dm_check_ac_dc_power calling a script wifi: cfg80211: Partial revert "wifi: cfg80211: Fix use after free for wext" Linux 4.19.276 thermal: intel: powerclamp: Fix cur_state for multi package system f2fs: fix cgroup writeback accounting with fs-layer encryption media: uvcvideo: Fix race condition with usb_kill_urb media: uvcvideo: Provide sync and async uvc_ctrl_status_event tcp: Fix listen() regression in 4.19.270 s390/setup: init jump labels before command line parsing s390/maccess: add no DAT mode to kernel_write Bluetooth: hci_sock: purge socket queues in the destruct() callback phy: rockchip-typec: Fix unsigned comparison with less than zero usb: uvc: Enumerate valid values for color matching USB: ene_usb6250: Allocate enough memory for full object usb: host: xhci: mvebu: Iterate over array indexes instead of using pointer math iio: accel: mma9551_core: Prevent uninitialized variable in mma9551_read_config_word() iio: accel: mma9551_core: Prevent uninitialized variable in mma9551_read_status_word() tools/iio/iio_utils:fix memory leak mei: bus-fixup:upon error print return values of send and receive tty: serial: fsl_lpuart: disable the CTS when send break signal tty: fix out-of-bounds access in tty_driver_lookup_tty() media: uvcvideo: Silence memcpy() run-time false positive warnings media: uvcvideo: Handle errors from calls to usb_string media: uvcvideo: Handle cameras with invalid descriptors firmware/efi sysfb_efi: Add quirk for Lenovo IdeaPad Duet 3 tracing: Add NULL checks for buffer in ring_buffer_free_read_page() thermal: intel: quark_dts: fix error pointer dereference scsi: ipr: Work around fortify-string warning vc_screen: modify vcs_size() handling in vcs_read() tcp: tcp_check_req() can be called from process context ARM: dts: spear320-hmi: correct STMPE GPIO compatible nfc: fix memory leak of se_io context in nfc_genl_se_io 9p/rdma: unmap receive dma buffer in rdma_request()/post_recv() 9p/xen: fix connection sequence 9p/xen: fix version parsing net: fix __dev_kfree_skb_any() vs drop monitor netfilter: ctnetlink: fix possible refcount leak in ctnetlink_create_conntrack() watchdog: pcwd_usb: Fix attempting to access uninitialized memory watchdog: Fix kmemleak in watchdog_cdev_register watchdog: at91sam9_wdt: use devm_request_irq to avoid missing free_irq() in error path x86: um: vdso: Add '%rcx' and '%r11' to the syscall clobber list ubi: ubi_wl_put_peb: Fix infinite loop when wear-leveling work failed ubi: Fix UAF wear-leveling entry in eraseblk_count_seq_show() ubifs: ubifs_writepage: Mark page dirty after writing inode failed ubifs: dirty_cow_znode: Fix memleak in error handling path ubifs: Re-statistic cleaned znode count if commit failed ubi: Fix possible null-ptr-deref in ubi_free_volume() ubi: Fix unreferenced object reported by kmemleak in ubi_resize_volume() ubi: Fix use-after-free when volume resizing failed ubifs: Reserve one leb for each journal head while doing budget ubifs: do_rename: Fix wrong space budget when target inode's nlink > 1 ubifs: Fix wrong dirty space budget for dirty inode ubifs: Rectify space budget for ubifs_xrename() ubifs: Rectify space budget for ubifs_symlink() if symlink is encrypted ubi: ensure that VID header offset + VID header size <= alloc, size um: vector: Fix memory leak in vector_config pwm: stm32-lp: fix the check on arr and cmp registers update fs/jfs: fix shift exponent db_agl2size negative net/sched: Retire tcindex classifier kbuild: Port silent mode detection to future gnu make. wifi: ath9k: use proper statements in conditionals drm/radeon: Fix eDP for single-display iMac11,2 PCI: Avoid FLR for AMD FCH AHCI adapters scsi: ses: Fix slab-out-of-bounds in ses_intf_remove() scsi: ses: Fix possible desc_ptr out-of-bounds accesses scsi: ses: Fix possible addl_desc_ptr out-of-bounds accesses scsi: ses: Fix slab-out-of-bounds in ses_enclosure_data_process() scsi: ses: Don't attach if enclosure has no components scsi: qla2xxx: Fix erroneous link down scsi: qla2xxx: Fix link failure in NPIV environment ktest.pl: Add RUN_TIMEOUT option with default unlimited ktest.pl: Fix missing "end_monitor" when machine check fails ktest.pl: Give back console on Ctrt^C on monitor media: ipu3-cio2: Fix PM runtime usage_count in driver unbind mips: fix syscall_get_nr alpha: fix FEN fault handling rbd: avoid use-after-free in do_rbd_add() when rbd_dev_create() fails ARM: dts: exynos: correct TMU phandle in Odroid XU ARM: dts: exynos: correct TMU phandle in Exynos4 dm flakey: don't corrupt the zero page dm flakey: fix logic when corrupting a bio wifi: cfg80211: Fix use after free for wext wifi: rtl8xxxu: Use a longer retry limit of 48 ext4: refuse to create ea block when umounted ext4: optimize ea_inode block expansion ALSA: ice1712: Do not left ice->gpio_mutex locked in aureon_add_controls() irqdomain: Drop bogus fwspec-mapping error handling irqdomain: Fix disassociation race irqdomain: Fix association race ima: Align ima_file_mmap() parameters with mmap_file LSM hook Documentation/hw-vuln: Document the interaction between IBRS and STIBP x86/speculation: Allow enabling STIBP with legacy IBRS x86/microcode/AMD: Fix mixed steppings support x86/microcode/AMD: Add a @cpu parameter to the reloading functions x86/microcode/amd: Remove load_microcode_amd()'s bsp parameter x86/kprobes: Fix arch_check_optimized_kprobe check within optimized_kprobe range x86/kprobes: Fix __recover_optprobed_insn check optimizing logic x86/reboot: Disable SVM, not just VMX, when stopping CPUs x86/reboot: Disable virtualization in an emergency if SVM is supported x86/crash: Disable virt in core NMI crash handler to avoid double shootdown x86/virt: Force GIF=1 prior to disabling SVM (for reboot flows) udf: Fix file corruption when appending just after end of preallocated extent udf: Do not update file length for failed writes to inline files udf: Do not bother merging very long extents udf: Truncate added extents on failed expansion ocfs2: fix non-auto defrag path not working issue ocfs2: fix defrag path triggering jbd2 ASSERT f2fs: fix information leak in f2fs_move_inline_dirents() fs: hfsplus: fix UAF issue in hfsplus_put_super hfs: fix missing hfs_bnode_get() in __hfs_bnode_create ARM: dts: exynos: correct HDMI phy compatible in Exynos4 s390/kprobes: fix current_kprobe never cleared after kprobes reenter s390/kprobes: fix irq mask clobbering on kprobe reenter from post_handler s390: discard .interp section rtc: pm8xxx: fix set-alarm race firmware: coreboot: framebuffer: Ignore reserved pixel color bits wifi: rtl8xxxu: fixing transmisison failure for rtl8192eu dm cache: add cond_resched() to various workqueue loops dm thin: add cond_resched() to various workqueue loops pinctrl: at91: use devm_kasprintf() to avoid potential leaks regulator: s5m8767: Bounds check id indexing into arrays regulator: max77802: Bounds check regulator id against opmode ASoC: kirkwood: Iterate over array indexes instead of using pointer math docs/scripts/gdb: add necessary make scripts_gdb step drm/msm/dsi: Add missing check for alloc_ordered_workqueue drm/radeon: free iio for atombios when driver shutdown drm/amd/display: Fix potential null-deref in dm_resume net/mlx5: fw_tracer: Fix debug print ACPI: video: Fix Lenovo Ideapad Z570 DMI match m68k: Check syscall_trace_enter() return code net: bcmgenet: Add a check for oversized packets ACPI: Don't build ACPICA with '-Os' inet: fix fast path in __inet_hash_connect() wifi: brcmfmac: ensure CLM version is null-terminated to prevent stack-out-of-bounds x86/bugs: Reset speculation control settings on init timers: Prevent union confusion from unexpected restart_syscall() thermal: intel: Fix unsigned comparison with less than zero rcu: Suppress smp_processor_id() complaint in synchronize_rcu_expedited_wait() wifi: brcmfmac: Fix potential stack-out-of-bounds in brcmf_c_preinit_dcmds() ARM: dts: exynos: Use Exynos5420 compatible for the MIPI video phy udf: Define EFSCORRUPTED error code rpmsg: glink: Avoid infinite loop on intent for missing channel media: usb: siano: Fix use after free bugs caused by do_submit_urb media: i2c: ov7670: 0 instead of -EINVAL was returned media: rc: Fix use-after-free bugs caused by ene_tx_irqsim() media: i2c: ov772x: Fix memleak in ov772x_probe() powerpc: Remove linker flag from KBUILD_AFLAGS media: platform: ti: Add missing check for devm_regulator_get MIPS: vpe-mt: drop physical_memsize powerpc/rtas: ensure 4KB alignment for rtas_data_buf powerpc/rtas: make all exports GPL powerpc/pseries/lparcfg: add missing RTAS retry status handling clk: Honor CLK_OPS_PARENT_ENABLE in clk_core_is_enabled() powerpc/powernv/ioda: Skip unallocated resources when mapping to PE Input: ads7846 - don't check penirq immediately for 7845 Input: ads7846 - don't report pressure for ads7845 mtd: rawnand: sunxi: Fix the size of the last OOB region mfd: pcf50633-adc: Fix potential memleak in pcf50633_adc_async_read() selftests/ftrace: Fix bash specific "==" operator sparc: allow PM configs for sparc32 COMPILE_TEST perf tools: Fix auto-complete on aarch64 perf llvm: Fix inadvertent file creation gfs2: jdata writepage fix cifs: Fix warning and UAF when destroy the MR list cifs: Fix lost destroy smbd connection when MR allocate failed nfsd: fix race to check ls_layouts dm: remove flush_scheduled_work() during local_exit() hwmon: (mlxreg-fan) Return zero speed for broken fan spi: bcm63xx-hsspi: Fix multi-bit mode setting spi: bcm63xx-hsspi: fix pm_runtime scsi: aic94xx: Add missing check for dma_map_single() hwmon: (ltc2945) Handle error case in ltc2945_value_store gpio: vf610: connect GPIO label to dev name ASoC: soc-compress.c: fixup private_data on snd_soc_new_compress() drm/mediatek: Clean dangling pointer on bind error path drm/mediatek: Drop unbalanced obj unref gpu: host1x: Don't skip assigning syncpoints to channels drm/msm/dpu: Add check for pstates drm/msm: use strscpy instead of strncpy drm/mipi-dsi: Fix byte order of 16-bit DCS set/get brightness ALSA: hda/ca0132: minor fix for allocation size pinctrl: rockchip: Fix refcount leak in rockchip_pinctrl_parse_groups pinctrl: pinctrl-rockchip: Fix a bunch of kerneldoc misdemeanours drm/msm/hdmi: Add missing check for alloc_ordered_workqueue gpu: ipu-v3: common: Add of_node_put() for reference returned by of_graph_get_port_by_id() drm/vc4: dpi: Fix format mapping for RGB565 drm/vc4: dpi: Add option for inverting pixel clock and output enable drm: Clarify definition of the DRM_BUS_FLAG_(PIXDATA|SYNC)_* macros drm/bridge: megachips: Fix error handling in i2c_register_driver() drm: mxsfb: DRM_MXSFB should depend on ARCH_MXS || ARCH_MXC selftest: fib_tests: Always cleanup before exit irqchip/irq-bcm7120-l2: Set IRQ_LEVEL for level triggered interrupts irqchip/irq-brcmstb-l2: Set IRQ_LEVEL for level triggered interrupts can: esd_usb: Move mislocated storage of SJA1000_ECC_SEG bits in case of a bus error wifi: mac80211: make rate u32 in sta_set_rate_info_rx() crypto: crypto4xx - Call dma_unmap_page when done wifi: mwifiex: fix loop iterator in mwifiex_update_ampdu_txwinsize() wifi: iwl4965: Add missing check for create_singlethread_workqueue() wifi: iwl3945: Add missing check for create_singlethread_workqueue RISC-V: time: initialize hrtimer based broadcast clock event device m68k: /proc/hardware should depend on PROC_FS crypto: rsa-pkcs1pad - Use akcipher_request_complete rds: rds_rm_zerocopy_callback() correct order for list_add_tail() libbpf: Fix alen calculation in libbpf_nla_dump_errormsg() Bluetooth: L2CAP: Fix potential user-after-free irqchip/irq-mvebu-gicp: Fix refcount leak in mvebu_gicp_probe irqchip/alpine-msi: Fix refcount leak in alpine_msix_init_domains net/mlx5: Enhance debug print in page allocation failure powercap: fix possible name leak in powercap_register_zone() crypto: seqiv - Handle EBUSY correctly ACPI: battery: Fix missing NUL-termination with large strings wifi: ath9k: Fix potential stack-out-of-bounds write in ath9k_wmi_rsp_callback() wifi: ath9k: hif_usb: clean up skbs if ath9k_hif_usb_rx_stream() fails ath9k: htc: clean up statistics macros ath9k: hif_usb: simplify if-if to if-else wifi: ath9k: htc_hst: free skb in ath9k_htc_rx_msg() if there is no callback function wifi: orinoco: check return value of hermes_write_wordrec() ACPICA: nsrepair: handle cases without a return value correctly lib/mpi: Fix buffer overrun when SG is too long genirq: Fix the return type of kstat_cpu_irqs_sum() ACPICA: Drop port I/O validation for some regions wifi: wl3501_cs: don't call kfree_skb() under spin_lock_irqsave() wifi: libertas: cmdresp: don't call kfree_skb() under spin_lock_irqsave() wifi: libertas: main: don't call kfree_skb() under spin_lock_irqsave() wifi: libertas: if_usb: don't call kfree_skb() under spin_lock_irqsave() wifi: libertas_tf: don't call kfree_skb() under spin_lock_irqsave() wifi: brcmfmac: unmap dma buffer in brcmf_msgbuf_alloc_pktid() wifi: brcmfmac: fix potential memory leak in brcmf_netdev_start_xmit() wifi: ipw2200: fix memory leak in ipw_wdev_init() wifi: ipw2x00: don't call dev_kfree_skb() under spin_lock_irqsave() ipw2x00: switch from 'pci_' to 'dma_' API wifi: rtlwifi: Fix global-out-of-bounds bug in _rtl8812ae_phy_set_txpower_limit() rtlwifi: fix -Wpointer-sign warning wifi: rtl8xxxu: don't call dev_kfree_skb() under spin_lock_irqsave() wifi: libertas: fix memory leak in lbs_init_adapter() wifi: rsi: Fix memory leak in rsi_coex_attach() block: bio-integrity: Copy flags when bio_integrity_payload is cloned blk-mq: remove stale comment for blk_mq_sched_mark_restart_hctx arm64: dts: mediatek: mt7622: Add missing pwm-cells to pwm node arm64: dts: amlogic: meson-gxl: add missing unit address to eth-phy-mux node name arm64: dts: amlogic: meson-gx: add missing unit address to rng node name arm64: dts: amlogic: meson-gx: add missing SCPI sensors compatible arm64: dts: amlogic: meson-axg: fix SCPI clock dvfs node name arm64: dts: meson-axg: enable SCPI arm64: dts: amlogic: meson-gx: fix SCPI clock dvfs node name ARM: imx: Call ida_simple_remove() for ida_simple_get ARM: dts: exynos: correct wr-active property in Exynos3250 Rinato ARM: OMAP1: call platform_device_put() in error case in omap1_dm_timer_init() arm64: dts: meson-gx: Fix the SCPI DVFS node name and unit address arm64: dts: meson-gx: Fix Ethernet MAC address unit name ARM: zynq: Fix refcount leak in zynq_early_slcr_init ARM: OMAP2+: Fix memory leak in realtime_counter_init() HID: asus: use spinlock to safely schedule workers HID: asus: use spinlock to protect concurrent accesses HID: asus: Remove check for same LED brightness on set Change-Id: Ie09175b59aef5de140e476316d94097cac7a3031
679 lines
22 KiB
Makefile
679 lines
22 KiB
Makefile
# SPDX-License-Identifier: GPL-2.0
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# ==========================================================================
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# Building
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# ==========================================================================
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src := $(obj)
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PHONY := __build
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__build:
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# Init all relevant variables used in kbuild files so
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# 1) they have correct type
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# 2) they do not inherit any value from the environment
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obj-y :=
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obj-m :=
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lib-y :=
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lib-m :=
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always :=
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targets :=
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subdir-y :=
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subdir-m :=
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EXTRA_AFLAGS :=
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EXTRA_CFLAGS :=
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EXTRA_CPPFLAGS :=
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EXTRA_LDFLAGS :=
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asflags-y :=
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ccflags-y :=
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cppflags-y :=
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ldflags-y :=
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subdir-asflags-y :=
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subdir-ccflags-y :=
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# Read auto.conf if it exists, otherwise ignore
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-include include/config/auto.conf
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include scripts/Kbuild.include
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# For backward compatibility check that these variables do not change
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save-cflags := $(CFLAGS)
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# The filename Kbuild has precedence over Makefile
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kbuild-dir := $(if $(filter /%,$(src)),$(src),$(srctree)/$(src))
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kbuild-file := $(if $(wildcard $(kbuild-dir)/Kbuild),$(kbuild-dir)/Kbuild,$(kbuild-dir)/Makefile)
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include $(kbuild-file)
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# If the save-* variables changed error out
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ifeq ($(KBUILD_NOPEDANTIC),)
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ifneq ("$(save-cflags)","$(CFLAGS)")
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$(error CFLAGS was changed in "$(kbuild-file)". Fix it to use ccflags-y)
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endif
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endif
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include scripts/Makefile.lib
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# Do not include host rules unless needed
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ifneq ($(hostprogs-y)$(hostprogs-m)$(hostlibs-y)$(hostlibs-m)$(hostcxxlibs-y)$(hostcxxlibs-m),)
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include scripts/Makefile.host
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endif
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# Do not include host rules unless needed
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ifneq ($(dtbo-y),)
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include scripts/Makefile.dtbo
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endif
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ifndef obj
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$(warning kbuild: Makefile.build is included improperly)
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endif
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# ===========================================================================
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ifneq ($(strip $(lib-y) $(lib-m) $(lib-)),)
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lib-target := $(obj)/lib.a
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real-obj-y += $(obj)/lib-ksyms.o
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endif
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ifneq ($(strip $(real-obj-y) $(need-builtin)),)
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builtin-target := $(obj)/built-in.a
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endif
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modorder-target := $(obj)/modules.order
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# We keep a list of all modules in $(MODVERDIR)
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__build: $(if $(KBUILD_BUILTIN),$(builtin-target) $(lib-target) $(extra-y)) \
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$(if $(KBUILD_MODULES),$(obj-m) $(modorder-target)) \
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$(subdir-ym) $(always)
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@:
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# Linus' kernel sanity checking tool
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ifneq ($(KBUILD_CHECKSRC),0)
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ifeq ($(KBUILD_CHECKSRC),2)
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quiet_cmd_force_checksrc = CHECK $<
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cmd_force_checksrc = $(CHECK) $(CHECKFLAGS) $(c_flags) $< ;
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else
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quiet_cmd_checksrc = CHECK $<
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cmd_checksrc = $(CHECK) $(CHECKFLAGS) $(c_flags) $< ;
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endif
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endif
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ifneq ($(KBUILD_ENABLE_EXTRA_GCC_CHECKS),)
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cmd_checkdoc = $(srctree)/scripts/kernel-doc -none $< ;
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endif
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# Do section mismatch analysis for each module/built-in.a
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ifdef CONFIG_DEBUG_SECTION_MISMATCH
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cmd_secanalysis = ; scripts/mod/modpost $@
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endif
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# Compile C sources (.c)
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# ---------------------------------------------------------------------------
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# Default is built-in, unless we know otherwise
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modkern_cflags = \
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$(if $(part-of-module), \
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$(KBUILD_CFLAGS_MODULE) $(CFLAGS_MODULE), \
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$(KBUILD_CFLAGS_KERNEL) $(CFLAGS_KERNEL))
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quiet_modtag := $(empty) $(empty)
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$(real-obj-m) : part-of-module := y
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$(real-obj-m:.o=.i) : part-of-module := y
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$(real-obj-m:.o=.s) : part-of-module := y
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$(real-obj-m:.o=.lst): part-of-module := y
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$(real-obj-m) : quiet_modtag := [M]
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$(real-obj-m:.o=.i) : quiet_modtag := [M]
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$(real-obj-m:.o=.s) : quiet_modtag := [M]
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$(real-obj-m:.o=.lst): quiet_modtag := [M]
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$(obj-m) : quiet_modtag := [M]
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quiet_cmd_cc_s_c = CC $(quiet_modtag) $@
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cmd_cc_s_c = $(CC) $(c_flags) $(DISABLE_LTO) -fverbose-asm -S -o $@ $<
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$(obj)/%.s: $(src)/%.c FORCE
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$(call if_changed_dep,cc_s_c)
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quiet_cmd_cpp_i_c = CPP $(quiet_modtag) $@
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cmd_cpp_i_c = $(CPP) $(c_flags) -o $@ $<
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$(obj)/%.i: $(src)/%.c FORCE
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$(call if_changed_dep,cpp_i_c)
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# These mirror gensymtypes_S and co below, keep them in synch.
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cmd_gensymtypes_c = \
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$(CPP) -D__GENKSYMS__ $(c_flags) $< | \
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$(GENKSYMS) $(if $(1), -T $(2)) \
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$(patsubst y,-R,$(CONFIG_MODULE_REL_CRCS)) \
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$(if $(KBUILD_PRESERVE),-p) \
|
|
-r $(firstword $(wildcard $(2:.symtypes=.symref) /dev/null))
|
|
|
|
quiet_cmd_cc_symtypes_c = SYM $(quiet_modtag) $@
|
|
cmd_cc_symtypes_c = \
|
|
set -e; \
|
|
$(call cmd_gensymtypes_c,true,$@) >/dev/null; \
|
|
test -s $@ || rm -f $@
|
|
|
|
$(obj)/%.symtypes : $(src)/%.c FORCE
|
|
$(call cmd,cc_symtypes_c)
|
|
|
|
# LLVM assembly
|
|
# Generate .ll files from .c
|
|
quiet_cmd_cc_ll_c = CC $(quiet_modtag) $@
|
|
cmd_cc_ll_c = $(CC) $(c_flags) -emit-llvm -S -o $@ $<
|
|
|
|
$(obj)/%.ll: $(src)/%.c FORCE
|
|
$(call if_changed_dep,cc_ll_c)
|
|
|
|
# C (.c) files
|
|
# The C file is compiled and updated dependency information is generated.
|
|
# (See cmd_cc_o_c + relevant part of rule_cc_o_c)
|
|
|
|
quiet_cmd_cc_o_c = CC $(quiet_modtag) $@
|
|
|
|
ifndef CONFIG_MODVERSIONS
|
|
cmd_cc_o_c = $(CC) $(c_flags) -c -o $@ $<
|
|
|
|
else
|
|
# When module versioning is enabled the following steps are executed:
|
|
# o compile a .tmp_<file>.o from <file>.c
|
|
# o if .tmp_<file>.o doesn't contain a __ksymtab version, i.e. does
|
|
# not export symbols, we just rename .tmp_<file>.o to <file>.o and
|
|
# are done.
|
|
# o otherwise, we calculate symbol versions using the good old
|
|
# genksyms on the preprocessed source and postprocess them in a way
|
|
# that they are usable as a linker script
|
|
# o generate <file>.o from .tmp_<file>.o using the linker to
|
|
# replace the unresolved symbols __crc_exported_symbol with
|
|
# the actual value of the checksum generated by genksyms
|
|
|
|
cmd_cc_o_c = $(CC) $(c_flags) -c -o $(@D)/.tmp_$(@F) $<
|
|
|
|
ifdef CONFIG_LTO_CLANG
|
|
# Generate .o.symversions files for each .o with exported symbols, and link these
|
|
# to the kernel and/or modules at the end.
|
|
cmd_modversions_c = \
|
|
if $(OBJDUMP) -h $(@D)/.tmp_$(@F) >/dev/null 2>/dev/null; then \
|
|
if $(OBJDUMP) -h $(@D)/.tmp_$(@F) | grep -q __ksymtab; then \
|
|
$(call cmd_gensymtypes_c,$(KBUILD_SYMTYPES),$(@:.o=.symtypes)) \
|
|
> $(@D)/$(@F).symversions; \
|
|
fi; \
|
|
else \
|
|
if $(LLVM_NM) $(@D)/.tmp_$(@F) | grep -q __ksymtab; then \
|
|
$(call cmd_gensymtypes_c,$(KBUILD_SYMTYPES),$(@:.o=.symtypes)) \
|
|
> $(@D)/$(@F).symversions; \
|
|
fi; \
|
|
fi; \
|
|
mv -f $(@D)/.tmp_$(@F) $@;
|
|
else
|
|
cmd_modversions_c = \
|
|
if $(OBJDUMP) -h $(@D)/.tmp_$(@F) | grep -q __ksymtab; then \
|
|
$(call cmd_gensymtypes_c,$(KBUILD_SYMTYPES),$(@:.o=.symtypes)) \
|
|
> $(@D)/.tmp_$(@F:.o=.ver); \
|
|
\
|
|
$(LD) $(KBUILD_LDFLAGS) -r -o $@ $(@D)/.tmp_$(@F) \
|
|
-T $(@D)/.tmp_$(@F:.o=.ver); \
|
|
rm -f $(@D)/.tmp_$(@F) $(@D)/.tmp_$(@F:.o=.ver); \
|
|
else \
|
|
mv -f $(@D)/.tmp_$(@F) $@; \
|
|
fi;
|
|
endif
|
|
endif
|
|
|
|
ifdef CONFIG_FTRACE_MCOUNT_RECORD
|
|
ifndef CC_USING_RECORD_MCOUNT
|
|
# compiler will not generate __mcount_loc use recordmcount or recordmcount.pl
|
|
ifdef BUILD_C_RECORDMCOUNT
|
|
ifeq ("$(origin RECORDMCOUNT_WARN)", "command line")
|
|
RECORDMCOUNT_FLAGS = -w
|
|
endif
|
|
|
|
ifdef CONFIG_LTO_CLANG
|
|
# With LTO, we postpone running recordmcount until after the LTO link step, so
|
|
# let's export the parameters for the link script.
|
|
export RECORDMCOUNT_FLAGS
|
|
else
|
|
# Due to recursion, we must skip empty.o.
|
|
# The empty.o file is created in the make process in order to determine
|
|
# the target endianness and word size. It is made before all other C
|
|
# files, including recordmcount.
|
|
sub_cmd_record_mcount = \
|
|
if [ $(@) != "scripts/mod/empty.o" ]; then \
|
|
$(objtree)/scripts/recordmcount $(RECORDMCOUNT_FLAGS) "$(@)"; \
|
|
fi;
|
|
endif
|
|
|
|
recordmcount_source := $(srctree)/scripts/recordmcount.c \
|
|
$(srctree)/scripts/recordmcount.h
|
|
else # !BUILD_C_RECORDMCOUNT
|
|
sub_cmd_record_mcount = set -e ; perl $(srctree)/scripts/recordmcount.pl "$(ARCH)" \
|
|
"$(if $(CONFIG_CPU_BIG_ENDIAN),big,little)" \
|
|
"$(if $(CONFIG_64BIT),64,32)" \
|
|
"$(OBJDUMP)" "$(OBJCOPY)" "$(CC) $(KBUILD_CPPFLAGS) $(KBUILD_CFLAGS)" \
|
|
"$(LD) $(KBUILD_LDFLAGS)" "$(NM)" "$(RM)" "$(MV)" \
|
|
"$(if $(part-of-module),1,0)" "$(@)";
|
|
|
|
recordmcount_source := $(srctree)/scripts/recordmcount.pl
|
|
endif # BUILD_C_RECORDMCOUNT
|
|
|
|
ifndef CONFIG_LTO_CLANG
|
|
cmd_record_mcount = \
|
|
if [ "$(findstring $(CC_FLAGS_FTRACE),$(_c_flags))" = \
|
|
"$(CC_FLAGS_FTRACE)" ]; then \
|
|
$(sub_cmd_record_mcount) \
|
|
fi;
|
|
endif # CONFIG_LTO_CLANG
|
|
endif # CC_USING_RECORD_MCOUNT
|
|
endif # CONFIG_FTRACE_MCOUNT_RECORD
|
|
|
|
ifdef CONFIG_STACK_VALIDATION
|
|
ifneq ($(SKIP_STACK_VALIDATION),1)
|
|
|
|
__objtool_obj := $(objtree)/tools/objtool/objtool
|
|
|
|
objtool_args = $(if $(CONFIG_UNWINDER_ORC),orc generate,check)
|
|
|
|
objtool_args += $(if $(part-of-module), --module,)
|
|
|
|
ifndef CONFIG_FRAME_POINTER
|
|
objtool_args += --no-fp
|
|
endif
|
|
ifdef CONFIG_GCOV_KERNEL
|
|
objtool_args += --no-unreachable
|
|
endif
|
|
ifdef CONFIG_RETPOLINE
|
|
objtool_args += --retpoline
|
|
endif
|
|
|
|
|
|
ifdef CONFIG_MODVERSIONS
|
|
objtool_o = $(@D)/.tmp_$(@F)
|
|
else
|
|
objtool_o = $(@)
|
|
endif
|
|
|
|
# 'OBJECT_FILES_NON_STANDARD := y': skip objtool checking for a directory
|
|
# 'OBJECT_FILES_NON_STANDARD_foo.o := 'y': skip objtool checking for a file
|
|
# 'OBJECT_FILES_NON_STANDARD_foo.o := 'n': override directory skip for a file
|
|
cmd_objtool = $(if $(patsubst y%,, \
|
|
$(OBJECT_FILES_NON_STANDARD_$(basetarget).o)$(OBJECT_FILES_NON_STANDARD)n), \
|
|
$(__objtool_obj) $(objtool_args) "$(objtool_o)";)
|
|
objtool_obj = $(if $(patsubst y%,, \
|
|
$(OBJECT_FILES_NON_STANDARD_$(basetarget).o)$(OBJECT_FILES_NON_STANDARD)n), \
|
|
$(__objtool_obj))
|
|
|
|
endif # SKIP_STACK_VALIDATION
|
|
endif # CONFIG_STACK_VALIDATION
|
|
|
|
# Rebuild all objects when objtool changes, or is enabled/disabled.
|
|
objtool_dep = $(objtool_obj) \
|
|
$(wildcard include/config/orc/unwinder.h \
|
|
include/config/stack/validation.h)
|
|
|
|
define rule_cc_o_c
|
|
$(call echo-cmd,checksrc) $(cmd_checksrc) \
|
|
$(call cmd_and_fixdep,cc_o_c) \
|
|
$(cmd_checkdoc) \
|
|
$(call echo-cmd,objtool) $(cmd_objtool) \
|
|
$(cmd_modversions_c) \
|
|
$(call echo-cmd,record_mcount) $(cmd_record_mcount)
|
|
endef
|
|
|
|
define rule_as_o_S
|
|
$(call cmd_and_fixdep,as_o_S) \
|
|
$(call echo-cmd,objtool) $(cmd_objtool) \
|
|
$(cmd_modversions_S)
|
|
endef
|
|
|
|
# List module undefined symbols (or empty line if not enabled)
|
|
ifdef CONFIG_TRIM_UNUSED_KSYMS
|
|
cmd_undef_syms = $(NM) $@ | sed -n 's/^ *U //p' | xargs echo
|
|
else
|
|
cmd_undef_syms = echo
|
|
endif
|
|
|
|
# Built-in and composite module parts
|
|
$(obj)/%.o: $(src)/%.c $(recordmcount_source) $(objtool_dep) FORCE
|
|
$(call cmd,force_checksrc)
|
|
$(call if_changed_rule,cc_o_c)
|
|
|
|
# Single-part modules are special since we need to mark them in $(MODVERDIR)
|
|
|
|
$(single-used-m): $(obj)/%.o: $(src)/%.c $(recordmcount_source) $(objtool_dep) FORCE
|
|
$(call cmd,force_checksrc)
|
|
$(call if_changed_rule,cc_o_c)
|
|
@{ echo $(@:.o=.ko); echo $@; \
|
|
$(cmd_undef_syms); } > $(MODVERDIR)/$(@F:.o=.mod)
|
|
|
|
quiet_cmd_cc_lst_c = MKLST $@
|
|
cmd_cc_lst_c = $(CC) $(c_flags) -g -c -o $*.o $< && \
|
|
$(CONFIG_SHELL) $(srctree)/scripts/makelst $*.o \
|
|
System.map $(OBJDUMP) > $@
|
|
|
|
$(obj)/%.lst: $(src)/%.c FORCE
|
|
$(call if_changed_dep,cc_lst_c)
|
|
|
|
# Compile assembler sources (.S)
|
|
# ---------------------------------------------------------------------------
|
|
|
|
modkern_aflags := $(KBUILD_AFLAGS_KERNEL) $(AFLAGS_KERNEL)
|
|
|
|
$(real-obj-m) : modkern_aflags := $(KBUILD_AFLAGS_MODULE) $(AFLAGS_MODULE)
|
|
$(real-obj-m:.o=.s): modkern_aflags := $(KBUILD_AFLAGS_MODULE) $(AFLAGS_MODULE)
|
|
|
|
# .S file exports must have their C prototypes defined in asm/asm-prototypes.h
|
|
# or a file that it includes, in order to get versioned symbols. We build a
|
|
# dummy C file that includes asm-prototypes and the EXPORT_SYMBOL lines from
|
|
# the .S file (with trailing ';'), and run genksyms on that, to extract vers.
|
|
#
|
|
# This is convoluted. The .S file must first be preprocessed to run guards and
|
|
# expand names, then the resulting exports must be constructed into plain
|
|
# EXPORT_SYMBOL(symbol); to build our dummy C file, and that gets preprocessed
|
|
# to make the genksyms input.
|
|
#
|
|
# These mirror gensymtypes_c and co above, keep them in synch.
|
|
cmd_gensymtypes_S = \
|
|
(echo "\#include <linux/kernel.h>" ; \
|
|
echo "\#include <asm/asm-prototypes.h>" ; \
|
|
$(CPP) $(a_flags) $< | \
|
|
grep "\<___EXPORT_SYMBOL\>" | \
|
|
sed 's/.*___EXPORT_SYMBOL[[:space:]]*\([a-zA-Z0-9_]*\)[[:space:]]*,.*/EXPORT_SYMBOL(\1);/' ) | \
|
|
$(CPP) -D__GENKSYMS__ $(c_flags) -xc - | \
|
|
$(GENKSYMS) $(if $(1), -T $(2)) \
|
|
$(patsubst y,-R,$(CONFIG_MODULE_REL_CRCS)) \
|
|
$(if $(KBUILD_PRESERVE),-p) \
|
|
-r $(firstword $(wildcard $(2:.symtypes=.symref) /dev/null))
|
|
|
|
quiet_cmd_cc_symtypes_S = SYM $(quiet_modtag) $@
|
|
cmd_cc_symtypes_S = \
|
|
set -e; \
|
|
$(call cmd_gensymtypes_S,true,$@) >/dev/null; \
|
|
test -s $@ || rm -f $@
|
|
|
|
$(obj)/%.symtypes : $(src)/%.S FORCE
|
|
$(call cmd,cc_symtypes_S)
|
|
|
|
|
|
quiet_cmd_cpp_s_S = CPP $(quiet_modtag) $@
|
|
cmd_cpp_s_S = $(CPP) $(a_flags) -o $@ $<
|
|
|
|
$(obj)/%.s: $(src)/%.S FORCE
|
|
$(call if_changed_dep,cpp_s_S)
|
|
|
|
quiet_cmd_as_o_S = AS $(quiet_modtag) $@
|
|
|
|
ifndef CONFIG_MODVERSIONS
|
|
cmd_as_o_S = $(CC) $(a_flags) -c -o $@ $<
|
|
|
|
else
|
|
|
|
ASM_PROTOTYPES := $(wildcard $(srctree)/arch/$(SRCARCH)/include/asm/asm-prototypes.h)
|
|
|
|
ifeq ($(ASM_PROTOTYPES),)
|
|
cmd_as_o_S = $(CC) $(a_flags) -c -o $@ $<
|
|
|
|
else
|
|
|
|
# versioning matches the C process described above, with difference that
|
|
# we parse asm-prototypes.h C header to get function definitions.
|
|
|
|
cmd_as_o_S = $(CC) $(a_flags) -c -o $(@D)/.tmp_$(@F) $<
|
|
|
|
cmd_modversions_S = \
|
|
if $(OBJDUMP) -h $(@D)/.tmp_$(@F) | grep -q __ksymtab; then \
|
|
$(call cmd_gensymtypes_S,$(KBUILD_SYMTYPES),$(@:.o=.symtypes)) \
|
|
> $(@D)/.tmp_$(@F:.o=.ver); \
|
|
\
|
|
$(LD) $(KBUILD_LDFLAGS) -r -o $@ $(@D)/.tmp_$(@F) \
|
|
-T $(@D)/.tmp_$(@F:.o=.ver); \
|
|
rm -f $(@D)/.tmp_$(@F) $(@D)/.tmp_$(@F:.o=.ver); \
|
|
else \
|
|
mv -f $(@D)/.tmp_$(@F) $@; \
|
|
fi;
|
|
endif
|
|
endif
|
|
|
|
$(obj)/%.o: $(src)/%.S $(objtool_dep) FORCE
|
|
$(call if_changed_rule,as_o_S)
|
|
|
|
targets += $(filter-out $(subdir-obj-y), $(real-obj-y)) $(real-obj-m) $(lib-y)
|
|
targets += $(extra-y) $(MAKECMDGOALS) $(always)
|
|
|
|
# Linker scripts preprocessor (.lds.S -> .lds)
|
|
# ---------------------------------------------------------------------------
|
|
quiet_cmd_cpp_lds_S = LDS $@
|
|
cmd_cpp_lds_S = $(CPP) $(cpp_flags) -P -U$(ARCH) \
|
|
-D__ASSEMBLY__ -DLINKER_SCRIPT -o $@ $<
|
|
|
|
$(obj)/%.lds: $(src)/%.lds.S FORCE
|
|
$(call if_changed_dep,cpp_lds_S)
|
|
|
|
# ASN.1 grammar
|
|
# ---------------------------------------------------------------------------
|
|
quiet_cmd_asn1_compiler = ASN.1 $@
|
|
cmd_asn1_compiler = $(objtree)/scripts/asn1_compiler $< \
|
|
$(subst .h,.c,$@) $(subst .c,.h,$@)
|
|
|
|
$(obj)/%.asn1.c $(obj)/%.asn1.h: $(src)/%.asn1 $(objtree)/scripts/asn1_compiler
|
|
$(call cmd,asn1_compiler)
|
|
|
|
# Build the compiled-in targets
|
|
# ---------------------------------------------------------------------------
|
|
|
|
# To build objects in subdirs, we need to descend into the directories
|
|
$(sort $(subdir-obj-y)): $(subdir-ym) ;
|
|
|
|
ifdef CONFIG_LTO_CLANG
|
|
ifdef CONFIG_MODVERSIONS
|
|
# combine symversions for later processing
|
|
update_lto_symversions = \
|
|
rm -f $@.symversions; \
|
|
for i in $(foreach n, \
|
|
$(filter-out FORCE,$^), \
|
|
$(if $(wildcard $(n).symversions),$(n))); do \
|
|
cat $$i.symversions >> $@.symversions; \
|
|
done;
|
|
endif
|
|
# rebuild the symbol table with llvm-ar to include IR files
|
|
update_lto_symtable = ; \
|
|
mv -f $@ $@.tmp; \
|
|
$(LLVM_AR) rcsT$(KBUILD_ARFLAGS) $@ \
|
|
$$($(AR) t $@.tmp); \
|
|
rm -f $@.tmp
|
|
endif
|
|
|
|
#
|
|
# Rule to compile a set of .o files into one .o file
|
|
#
|
|
ifdef builtin-target
|
|
|
|
# built-in.a archives are made with no symbol table or index which
|
|
# makes them small and fast, but unable to be used by the linker.
|
|
# scripts/link-vmlinux.sh builds an aggregate built-in.a with a symbol
|
|
# table and index.
|
|
quiet_cmd_ar_builtin = AR $@
|
|
cmd_ar_builtin = $(update_lto_symversions) \
|
|
rm -f $@; \
|
|
$(AR) rcSTP$(KBUILD_ARFLAGS) $@ $(filter $(real-obj-y), $^)
|
|
|
|
$(builtin-target): $(real-obj-y) FORCE
|
|
$(call if_changed,ar_builtin)
|
|
|
|
targets += $(builtin-target)
|
|
endif # builtin-target
|
|
|
|
#
|
|
# Rule to create modules.order file
|
|
#
|
|
# Create commands to either record .ko file or cat modules.order from
|
|
# a subdirectory
|
|
modorder-cmds = \
|
|
$(foreach m, $(modorder), \
|
|
$(if $(filter %/modules.order, $m), \
|
|
cat $m;, echo kernel/$m;))
|
|
|
|
$(modorder-target): $(subdir-ym) FORCE
|
|
$(Q)(cat /dev/null; $(modorder-cmds)) > $@
|
|
|
|
#
|
|
# Rule to compile a set of .o files into one .a file
|
|
#
|
|
ifdef lib-target
|
|
quiet_cmd_link_l_target = AR $@
|
|
|
|
# lib target archives do get a symbol table and index
|
|
cmd_link_l_target = \
|
|
$(update_lto_symversions) \
|
|
rm -f $@; \
|
|
$(AR) rcsTP$(KBUILD_ARFLAGS) $@ $(lib-y) \
|
|
$(update_lto_symtable)
|
|
|
|
$(lib-target): $(lib-y) FORCE
|
|
$(call if_changed,link_l_target)
|
|
|
|
targets += $(lib-target)
|
|
|
|
dummy-object = $(obj)/.lib_exports.o
|
|
ksyms-lds = $(dot-target).lds
|
|
|
|
quiet_cmd_export_list = EXPORTS $@
|
|
filter_export_list = sed -ne '/___ksymtab/s/.*+\([^ ]*\).*/EXTERN(\1)/p'
|
|
link_export_list = rm -f $(dummy-object); \
|
|
echo | $(CC) $(a_flags) -c -o $(dummy-object) -x assembler -;\
|
|
$(LD) $(ld_flags) -r -o $@ -T $(ksyms-lds) $(dummy-object);\
|
|
rm $(dummy-object) $(ksyms-lds)
|
|
|
|
ifdef CONFIG_LTO_CLANG
|
|
# objdump doesn't understand IR files and llvm-nm doesn't support archives,
|
|
# so we'll walk through each file in the archive separately
|
|
cmd_export_list = \
|
|
rm -f $(ksyms-lds); \
|
|
for o in $$($(AR) t $<); do \
|
|
if $(OBJDUMP) -h $$o >/dev/null 2>/dev/null; then \
|
|
$(OBJDUMP) -h $$o | \
|
|
$(filter_export_list) \
|
|
>>$(ksyms-lds); \
|
|
else \
|
|
$(LLVM_NM) $$o | \
|
|
$(filter_export_list) \
|
|
>>$(ksyms-lds); \
|
|
fi; \
|
|
done; \
|
|
$(link_export_list)
|
|
else
|
|
cmd_export_list = $(OBJDUMP) -h $< | $(filter_export_list) >$(ksyms-lds); \
|
|
$(link_export_list)
|
|
endif
|
|
|
|
$(obj)/lib-ksyms.o: $(lib-target) FORCE
|
|
$(call if_changed,export_list)
|
|
|
|
targets += $(obj)/lib-ksyms.o
|
|
|
|
endif
|
|
|
|
#
|
|
# Rule to link composite objects
|
|
#
|
|
# Composite objects are specified in kbuild makefile as follows:
|
|
# <composite-object>-objs := <list of .o files>
|
|
# or
|
|
# <composite-object>-y := <list of .o files>
|
|
# or
|
|
# <composite-object>-m := <list of .o files>
|
|
# The -m syntax only works if <composite object> is a module
|
|
link_multi_deps = \
|
|
$(filter $(addprefix $(obj)/, \
|
|
$($(subst $(obj)/,,$(@:.o=-objs))) \
|
|
$($(subst $(obj)/,,$(@:.o=-y))) \
|
|
$($(subst $(obj)/,,$(@:.o=-m)))), $^)
|
|
|
|
cmd_link_multi-link = $(LD) $(ld_flags) -r -o $@ $(link_multi_deps) $(cmd_secanalysis)
|
|
|
|
quiet_cmd_link_multi-y = AR $@
|
|
cmd_link_multi-y = $(update_lto_symversions) \
|
|
rm -f $@; $(AR) rcSTP$(KBUILD_ARFLAGS) $@ $(link_multi_deps) \
|
|
$(update_lto_symtable)
|
|
|
|
quiet_cmd_link_multi-m = LD [M] $@
|
|
|
|
ifdef CONFIG_LTO_CLANG
|
|
# don't compile IR until needed
|
|
cmd_link_multi-m = $(cmd_link_multi-y)
|
|
else
|
|
cmd_link_multi-m = $(cmd_link_multi-link)
|
|
endif
|
|
|
|
$(multi-used-y): FORCE
|
|
$(call if_changed,link_multi-y)
|
|
|
|
$(multi-used-m): FORCE
|
|
$(call if_changed,link_multi-m)
|
|
@{ echo $(@:.o=.ko); echo $(link_multi_deps); \
|
|
$(cmd_undef_syms); } > $(MODVERDIR)/$(@F:.o=.mod)
|
|
|
|
$(call multi_depend, $(multi-used-y), .o, -objs -y)
|
|
$(call multi_depend, $(multi-used-m), .o, -objs -y -m)
|
|
|
|
targets += $(multi-used-m)
|
|
targets := $(filter-out $(PHONY), $(targets))
|
|
|
|
# Add intermediate targets:
|
|
# When building objects with specific suffix patterns, add intermediate
|
|
# targets that the final targets are derived from.
|
|
intermediate_targets = $(foreach sfx, $(2), \
|
|
$(patsubst %$(strip $(1)),%$(sfx), \
|
|
$(filter %$(strip $(1)), $(targets))))
|
|
# %.asn1.o <- %.asn1.[ch] <- %.asn1
|
|
# %.dtb.o <- %.dtb.S <- %.dtb <- %.dts
|
|
# %.lex.o <- %.lex.c <- %.l
|
|
# %.tab.o <- %.tab.[ch] <- %.y
|
|
targets += $(call intermediate_targets, .asn1.o, .asn1.c .asn1.h) \
|
|
$(call intermediate_targets, .dtb.o, .dtb.S .dtb) \
|
|
$(call intermediate_targets, .lex.o, .lex.c) \
|
|
$(call intermediate_targets, .tab.o, .tab.c .tab.h)
|
|
|
|
# Descending
|
|
# ---------------------------------------------------------------------------
|
|
|
|
PHONY += $(subdir-ym)
|
|
$(subdir-ym):
|
|
$(Q)$(MAKE) $(build)=$@ \
|
|
need-builtin=$(if $(filter $@/built-in.a, $(subdir-obj-y)),1) \
|
|
need-modorder=$(if $(need-modorder),$(if $(filter $@/modules.order, $(modorder)),1))
|
|
|
|
# Add FORCE to the prequisites of a target to force it to be always rebuilt.
|
|
# ---------------------------------------------------------------------------
|
|
|
|
PHONY += FORCE
|
|
|
|
FORCE:
|
|
|
|
# Read all saved command lines and dependencies for the $(targets) we
|
|
# may be building above, using $(if_changed{,_dep}). As an
|
|
# optimization, we don't need to read them if the target does not
|
|
# exist, we will rebuild anyway in that case.
|
|
|
|
cmd_files := $(wildcard $(foreach f,$(sort $(targets)),$(dir $(f)).$(notdir $(f)).cmd))
|
|
|
|
ifneq ($(cmd_files),)
|
|
include $(cmd_files)
|
|
endif
|
|
|
|
ifneq ($(KBUILD_SRC),)
|
|
# Create directories for object files if they do not exist
|
|
obj-dirs := $(sort $(obj) $(patsubst %/,%, $(dir $(targets))))
|
|
# If cmd_files exist, their directories apparently exist. Skip mkdir.
|
|
exist-dirs := $(sort $(patsubst %/,%, $(dir $(cmd_files))))
|
|
obj-dirs := $(strip $(filter-out $(exist-dirs), $(obj-dirs)))
|
|
ifneq ($(obj-dirs),)
|
|
$(shell mkdir -p $(obj-dirs))
|
|
endif
|
|
endif
|
|
|
|
# Some files contained in $(targets) are intermediate artifacts.
|
|
# We never want them to be removed automatically.
|
|
.SECONDARY: $(targets)
|
|
|
|
.PHONY: $(PHONY)
|