From 2115fbf7210bd053ba55a95e7ebc366df41aa9cf Mon Sep 17 00:00:00 2001 From: Heiko Carstens Date: Mon, 18 Nov 2019 13:59:25 +0100 Subject: s390: remove compat vdso code Remove compat vdso code, since there is hardly any compat user space left. Still existing compat user space will have to use system calls instead. Signed-off-by: Heiko Carstens Signed-off-by: Vasily Gorbik --- arch/s390/Kconfig | 3 - arch/s390/Makefile | 1 - arch/s390/kernel/Makefile | 1 - arch/s390/kernel/vdso.c | 42 +------- arch/s390/kernel/vdso32/.gitignore | 1 - arch/s390/kernel/vdso32/Makefile | 66 ------------ arch/s390/kernel/vdso32/clock_getres.S | 44 -------- arch/s390/kernel/vdso32/clock_gettime.S | 179 ------------------------------- arch/s390/kernel/vdso32/getcpu.S | 31 ------ arch/s390/kernel/vdso32/gettimeofday.S | 103 ------------------ arch/s390/kernel/vdso32/note.S | 13 --- arch/s390/kernel/vdso32/vdso32.lds.S | 142 ------------------------ arch/s390/kernel/vdso32/vdso32_wrapper.S | 15 --- 13 files changed, 3 insertions(+), 638 deletions(-) delete mode 100644 arch/s390/kernel/vdso32/.gitignore delete mode 100644 arch/s390/kernel/vdso32/Makefile delete mode 100644 arch/s390/kernel/vdso32/clock_getres.S delete mode 100644 arch/s390/kernel/vdso32/clock_gettime.S delete mode 100644 arch/s390/kernel/vdso32/getcpu.S delete mode 100644 arch/s390/kernel/vdso32/gettimeofday.S delete mode 100644 arch/s390/kernel/vdso32/note.S delete mode 100644 arch/s390/kernel/vdso32/vdso32.lds.S delete mode 100644 arch/s390/kernel/vdso32/vdso32_wrapper.S diff --git a/arch/s390/Kconfig b/arch/s390/Kconfig index 367a87c5d7b8..d4051e88e625 100644 --- a/arch/s390/Kconfig +++ b/arch/s390/Kconfig @@ -427,9 +427,6 @@ config COMPAT (and some other stuff like libraries and such) is needed for executing 31 bit applications. It is safe to say "Y". -config COMPAT_VDSO - def_bool COMPAT && !CC_IS_CLANG - config SYSVIPC_COMPAT def_bool y if COMPAT && SYSVIPC diff --git a/arch/s390/Makefile b/arch/s390/Makefile index 478b645b20dd..ba8556bb0fb1 100644 --- a/arch/s390/Makefile +++ b/arch/s390/Makefile @@ -157,7 +157,6 @@ zfcpdump: vdso_install: $(Q)$(MAKE) $(build)=arch/$(ARCH)/kernel/vdso64 $@ - $(Q)$(MAKE) $(build)=arch/$(ARCH)/kernel/vdso32 $@ archclean: $(Q)$(MAKE) $(clean)=$(boot) diff --git a/arch/s390/kernel/Makefile b/arch/s390/kernel/Makefile index 7edbbcd8228a..2b1203cf7be6 100644 --- a/arch/s390/kernel/Makefile +++ b/arch/s390/kernel/Makefile @@ -81,4 +81,3 @@ obj-$(CONFIG_TRACEPOINTS) += trace.o # vdso obj-y += vdso64/ -obj-$(CONFIG_COMPAT_VDSO) += vdso32/ diff --git a/arch/s390/kernel/vdso.c b/arch/s390/kernel/vdso.c index ed1fc08ccea2..bcc9bdb39ba2 100644 --- a/arch/s390/kernel/vdso.c +++ b/arch/s390/kernel/vdso.c @@ -29,13 +29,6 @@ #include #include -#ifdef CONFIG_COMPAT_VDSO -extern char vdso32_start, vdso32_end; -static void *vdso32_kbase = &vdso32_start; -static unsigned int vdso32_pages; -static struct page **vdso32_pagelist; -#endif - extern char vdso64_start, vdso64_end; static void *vdso64_kbase = &vdso64_start; static unsigned int vdso64_pages; @@ -55,12 +48,6 @@ static vm_fault_t vdso_fault(const struct vm_special_mapping *sm, vdso_pagelist = vdso64_pagelist; vdso_pages = vdso64_pages; -#ifdef CONFIG_COMPAT_VDSO - if (vma->vm_mm->context.compat_mm) { - vdso_pagelist = vdso32_pagelist; - vdso_pages = vdso32_pages; - } -#endif if (vmf->pgoff >= vdso_pages) return VM_FAULT_SIGBUS; @@ -76,10 +63,6 @@ static int vdso_mremap(const struct vm_special_mapping *sm, unsigned long vdso_pages; vdso_pages = vdso64_pages; -#ifdef CONFIG_COMPAT_VDSO - if (vma->vm_mm->context.compat_mm) - vdso_pages = vdso32_pages; -#endif if ((vdso_pages << PAGE_SHIFT) != vma->vm_end - vma->vm_start) return -EINVAL; @@ -209,12 +192,10 @@ int arch_setup_additional_pages(struct linux_binprm *bprm, int uses_interp) if (!vdso_enabled) return 0; + if (is_compat_task()) + return 0; + vdso_pages = vdso64_pages; -#ifdef CONFIG_COMPAT_VDSO - mm->context.compat_mm = is_compat_task(); - if (mm->context.compat_mm) - vdso_pages = vdso32_pages; -#endif /* * vDSO has a problem and was disabled, just don't "enable" it for * the process @@ -267,23 +248,6 @@ static int __init vdso_init(void) int i; vdso_init_data(vdso_data); -#ifdef CONFIG_COMPAT_VDSO - /* Calculate the size of the 32 bit vDSO */ - vdso32_pages = ((&vdso32_end - &vdso32_start - + PAGE_SIZE - 1) >> PAGE_SHIFT) + 1; - - /* Make sure pages are in the correct state */ - vdso32_pagelist = kcalloc(vdso32_pages + 1, sizeof(struct page *), - GFP_KERNEL); - BUG_ON(vdso32_pagelist == NULL); - for (i = 0; i < vdso32_pages - 1; i++) { - struct page *pg = virt_to_page(vdso32_kbase + i*PAGE_SIZE); - get_page(pg); - vdso32_pagelist[i] = pg; - } - vdso32_pagelist[vdso32_pages - 1] = virt_to_page(vdso_data); - vdso32_pagelist[vdso32_pages] = NULL; -#endif /* Calculate the size of the 64 bit vDSO */ vdso64_pages = ((&vdso64_end - &vdso64_start diff --git a/arch/s390/kernel/vdso32/.gitignore b/arch/s390/kernel/vdso32/.gitignore deleted file mode 100644 index e45fba9d0ced..000000000000 --- a/arch/s390/kernel/vdso32/.gitignore +++ /dev/null @@ -1 +0,0 @@ -vdso32.lds diff --git a/arch/s390/kernel/vdso32/Makefile b/arch/s390/kernel/vdso32/Makefile deleted file mode 100644 index aee9ffbccb54..000000000000 --- a/arch/s390/kernel/vdso32/Makefile +++ /dev/null @@ -1,66 +0,0 @@ -# SPDX-License-Identifier: GPL-2.0 -# List of files in the vdso, has to be asm only for now - -KCOV_INSTRUMENT := n - -obj-vdso32 = gettimeofday.o clock_getres.o clock_gettime.o note.o getcpu.o - -# Build rules - -targets := $(obj-vdso32) vdso32.so vdso32.so.dbg -obj-vdso32 := $(addprefix $(obj)/, $(obj-vdso32)) - -KBUILD_AFLAGS += -DBUILD_VDSO -KBUILD_CFLAGS += -DBUILD_VDSO - -KBUILD_AFLAGS_31 := $(filter-out -m64,$(KBUILD_AFLAGS)) -KBUILD_AFLAGS_31 += -m31 -s - -KBUILD_CFLAGS_31 := $(filter-out -m64,$(KBUILD_CFLAGS)) -KBUILD_CFLAGS_31 += -m31 -fPIC -shared -fno-common -fno-builtin -KBUILD_CFLAGS_31 += -nostdlib -Wl,-soname=linux-vdso32.so.1 \ - -Wl,--hash-style=both - -$(targets:%=$(obj)/%.dbg): KBUILD_CFLAGS = $(KBUILD_CFLAGS_31) -$(targets:%=$(obj)/%.dbg): KBUILD_AFLAGS = $(KBUILD_AFLAGS_31) - -obj-y += vdso32_wrapper.o -extra-y += vdso32.lds -CPPFLAGS_vdso32.lds += -P -C -U$(ARCH) - -# Disable gcov profiling, ubsan and kasan for VDSO code -GCOV_PROFILE := n -UBSAN_SANITIZE := n -KASAN_SANITIZE := n - -# Force dependency (incbin is bad) -$(obj)/vdso32_wrapper.o : $(obj)/vdso32.so - -# link rule for the .so file, .lds has to be first -$(obj)/vdso32.so.dbg: $(src)/vdso32.lds $(obj-vdso32) FORCE - $(call if_changed,vdso32ld) - -# strip rule for the .so file -$(obj)/%.so: OBJCOPYFLAGS := -S -$(obj)/%.so: $(obj)/%.so.dbg FORCE - $(call if_changed,objcopy) - -# assembly rules for the .S files -$(obj-vdso32): %.o: %.S FORCE - $(call if_changed_dep,vdso32as) - -# actual build commands -quiet_cmd_vdso32ld = VDSO32L $@ - cmd_vdso32ld = $(CC) $(c_flags) -Wl,-T $(filter %.lds %.o,$^) -o $@ -quiet_cmd_vdso32as = VDSO32A $@ - cmd_vdso32as = $(CC) $(a_flags) -c -o $@ $< - -# install commands for the unstripped file -quiet_cmd_vdso_install = INSTALL $@ - cmd_vdso_install = cp $(obj)/$@.dbg $(MODLIB)/vdso/$@ - -vdso32.so: $(obj)/vdso32.so.dbg - @mkdir -p $(MODLIB)/vdso - $(call cmd,vdso_install) - -vdso_install: vdso32.so diff --git a/arch/s390/kernel/vdso32/clock_getres.S b/arch/s390/kernel/vdso32/clock_getres.S deleted file mode 100644 index eaf9cf1417f6..000000000000 --- a/arch/s390/kernel/vdso32/clock_getres.S +++ /dev/null @@ -1,44 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0 */ -/* - * Userland implementation of clock_getres() for 32 bits processes in a - * s390 kernel for use in the vDSO - * - * Copyright IBM Corp. 2008 - * Author(s): Martin Schwidefsky (schwidefsky@de.ibm.com) - */ -#include -#include -#include -#include - - .text - .align 4 - .globl __kernel_clock_getres - .type __kernel_clock_getres,@function -__kernel_clock_getres: - CFI_STARTPROC - basr %r1,0 - la %r1,4f-.(%r1) - chi %r2,__CLOCK_REALTIME - je 0f - chi %r2,__CLOCK_MONOTONIC - je 0f - la %r1,5f-4f(%r1) - chi %r2,__CLOCK_REALTIME_COARSE - je 0f - chi %r2,__CLOCK_MONOTONIC_COARSE - jne 3f -0: ltr %r3,%r3 - jz 2f /* res == NULL */ -1: l %r0,0(%r1) - xc 0(4,%r3),0(%r3) /* set tp->tv_sec to zero */ - st %r0,4(%r3) /* store tp->tv_usec */ -2: lhi %r2,0 - br %r14 -3: lhi %r1,__NR_clock_getres /* fallback to svc */ - svc 0 - br %r14 - CFI_ENDPROC -4: .long __CLOCK_REALTIME_RES -5: .long __CLOCK_COARSE_RES - .size __kernel_clock_getres,.-__kernel_clock_getres diff --git a/arch/s390/kernel/vdso32/clock_gettime.S b/arch/s390/kernel/vdso32/clock_gettime.S deleted file mode 100644 index ada5c11a16e5..000000000000 --- a/arch/s390/kernel/vdso32/clock_gettime.S +++ /dev/null @@ -1,179 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0 */ -/* - * Userland implementation of clock_gettime() for 32 bits processes in a - * s390 kernel for use in the vDSO - * - * Copyright IBM Corp. 2008 - * Author(s): Martin Schwidefsky (schwidefsky@de.ibm.com) - */ -#include -#include -#include -#include -#include - - .text - .align 4 - .globl __kernel_clock_gettime - .type __kernel_clock_gettime,@function -__kernel_clock_gettime: - CFI_STARTPROC - ahi %r15,-16 - CFI_DEF_CFA_OFFSET STACK_FRAME_OVERHEAD+16 - CFI_VAL_OFFSET 15, -STACK_FRAME_OVERHEAD - basr %r5,0 -0: al %r5,21f-0b(%r5) /* get &_vdso_data */ - chi %r2,__CLOCK_REALTIME_COARSE - je 10f - chi %r2,__CLOCK_REALTIME - je 11f - chi %r2,__CLOCK_MONOTONIC_COARSE - je 9f - chi %r2,__CLOCK_MONOTONIC - jne 19f - - /* CLOCK_MONOTONIC */ -1: l %r4,__VDSO_UPD_COUNT+4(%r5) /* load update counter */ - tml %r4,0x0001 /* pending update ? loop */ - jnz 1b - stcke 0(%r15) /* Store TOD clock */ - lm %r0,%r1,1(%r15) - s %r0,__VDSO_XTIME_STAMP(%r5) /* TOD - cycle_last */ - sl %r1,__VDSO_XTIME_STAMP+4(%r5) - brc 3,2f - ahi %r0,-1 -2: ms %r0,__VDSO_TK_MULT(%r5) /* * tk->mult */ - lr %r2,%r0 - l %r0,__VDSO_TK_MULT(%r5) - ltr %r1,%r1 - mr %r0,%r0 - jnm 3f - a %r0,__VDSO_TK_MULT(%r5) -3: alr %r0,%r2 - al %r0,__VDSO_WTOM_NSEC(%r5) - al %r1,__VDSO_WTOM_NSEC+4(%r5) - brc 12,5f - ahi %r0,1 -5: l %r2,__VDSO_TK_SHIFT(%r5) /* Timekeeper shift */ - srdl %r0,0(%r2) /* >> tk->shift */ - l %r2,__VDSO_WTOM_SEC+4(%r5) - cl %r4,__VDSO_UPD_COUNT+4(%r5) /* check update counter */ - jne 1b - basr %r5,0 -6: ltr %r0,%r0 - jnz 7f - cl %r1,20f-6b(%r5) - jl 8f -7: ahi %r2,1 - sl %r1,20f-6b(%r5) - brc 3,6b - ahi %r0,-1 - j 6b -8: st %r2,0(%r3) /* store tp->tv_sec */ - st %r1,4(%r3) /* store tp->tv_nsec */ - lhi %r2,0 - ahi %r15,16 - CFI_DEF_CFA_OFFSET STACK_FRAME_OVERHEAD - CFI_RESTORE 15 - br %r14 - - /* CLOCK_MONOTONIC_COARSE */ - CFI_DEF_CFA_OFFSET STACK_FRAME_OVERHEAD+16 - CFI_VAL_OFFSET 15, -STACK_FRAME_OVERHEAD -9: l %r4,__VDSO_UPD_COUNT+4(%r5) /* load update counter */ - tml %r4,0x0001 /* pending update ? loop */ - jnz 9b - l %r2,__VDSO_WTOM_CRS_SEC+4(%r5) - l %r1,__VDSO_WTOM_CRS_NSEC+4(%r5) - cl %r4,__VDSO_UPD_COUNT+4(%r5) /* check update counter */ - jne 9b - j 8b - - /* CLOCK_REALTIME_COARSE */ -10: l %r4,__VDSO_UPD_COUNT+4(%r5) /* load update counter */ - tml %r4,0x0001 /* pending update ? loop */ - jnz 10b - l %r2,__VDSO_XTIME_CRS_SEC+4(%r5) - l %r1,__VDSO_XTIME_CRS_NSEC+4(%r5) - cl %r4,__VDSO_UPD_COUNT+4(%r5) /* check update counter */ - jne 10b - j 17f - - /* CLOCK_REALTIME */ -11: l %r4,__VDSO_UPD_COUNT+4(%r5) /* load update counter */ - tml %r4,0x0001 /* pending update ? loop */ - jnz 11b - stcke 0(%r15) /* Store TOD clock */ - lm %r0,%r1,__VDSO_TS_END(%r5) /* TOD steering end time */ - s %r0,1(%r15) /* no - ts_steering_end */ - sl %r1,5(%r15) - brc 3,22f - ahi %r0,-1 -22: ltr %r0,%r0 /* past end of steering? */ - jm 24f - srdl %r0,15 /* 1 per 2^16 */ - tm __VDSO_TS_DIR+3(%r5),0x01 /* steering direction? */ - jz 23f - lcr %r0,%r0 /* negative TOD offset */ - lcr %r1,%r1 - je 23f - ahi %r0,-1 -23: a %r0,1(%r15) /* add TOD timestamp */ - al %r1,5(%r15) - brc 12,25f - ahi %r0,1 - j 25f -24: lm %r0,%r1,1(%r15) /* load TOD timestamp */ -25: s %r0,__VDSO_XTIME_STAMP(%r5) /* TOD - cycle_last */ - sl %r1,__VDSO_XTIME_STAMP+4(%r5) - brc 3,12f - ahi %r0,-1 -12: ms %r0,__VDSO_TK_MULT(%r5) /* * tk->mult */ - lr %r2,%r0 - l %r0,__VDSO_TK_MULT(%r5) - ltr %r1,%r1 - mr %r0,%r0 - jnm 13f - a %r0,__VDSO_TK_MULT(%r5) -13: alr %r0,%r2 - al %r0,__VDSO_XTIME_NSEC(%r5) /* + tk->xtime_nsec */ - al %r1,__VDSO_XTIME_NSEC+4(%r5) - brc 12,14f - ahi %r0,1 -14: l %r2,__VDSO_TK_SHIFT(%r5) /* Timekeeper shift */ - srdl %r0,0(%r2) /* >> tk->shift */ - l %r2,__VDSO_XTIME_SEC+4(%r5) - cl %r4,__VDSO_UPD_COUNT+4(%r5) /* check update counter */ - jne 11b - basr %r5,0 -15: ltr %r0,%r0 - jnz 16f - cl %r1,20f-15b(%r5) - jl 17f -16: ahi %r2,1 - sl %r1,20f-15b(%r5) - brc 3,15b - ahi %r0,-1 - j 15b -17: st %r2,0(%r3) /* store tp->tv_sec */ - st %r1,4(%r3) /* store tp->tv_nsec */ - lhi %r2,0 - ahi %r15,16 - CFI_DEF_CFA_OFFSET STACK_FRAME_OVERHEAD - CFI_RESTORE 15 - br %r14 - - /* Fallback to system call */ - CFI_DEF_CFA_OFFSET STACK_FRAME_OVERHEAD+16 - CFI_VAL_OFFSET 15, -STACK_FRAME_OVERHEAD -19: lhi %r1,__NR_clock_gettime - svc 0 - ahi %r15,16 - CFI_DEF_CFA_OFFSET STACK_FRAME_OVERHEAD - CFI_RESTORE 15 - br %r14 - CFI_ENDPROC - -20: .long 1000000000 -21: .long _vdso_data - 0b - .size __kernel_clock_gettime,.-__kernel_clock_gettime diff --git a/arch/s390/kernel/vdso32/getcpu.S b/arch/s390/kernel/vdso32/getcpu.S deleted file mode 100644 index dc79e169f0ad..000000000000 --- a/arch/s390/kernel/vdso32/getcpu.S +++ /dev/null @@ -1,31 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0 */ -/* - * Userland implementation of getcpu() for 32 bits processes in a - * s390 kernel for use in the vDSO - * - * Copyright IBM Corp. 2016 - * Author(s): Martin Schwidefsky - */ -#include -#include -#include - - .text - .align 4 - .globl __kernel_getcpu - .type __kernel_getcpu,@function -__kernel_getcpu: - CFI_STARTPROC - sacf 256 - lm %r4,%r5,__VDSO_GETCPU_VAL(%r0) - sacf 0 - ltr %r2,%r2 - jz 2f - st %r5,0(%r2) -2: ltr %r3,%r3 - jz 3f - st %r4,0(%r3) -3: lhi %r2,0 - br %r14 - CFI_ENDPROC - .size __kernel_getcpu,.-__kernel_getcpu diff --git a/arch/s390/kernel/vdso32/gettimeofday.S b/arch/s390/kernel/vdso32/gettimeofday.S deleted file mode 100644 index b23063fbc892..000000000000 --- a/arch/s390/kernel/vdso32/gettimeofday.S +++ /dev/null @@ -1,103 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0 */ -/* - * Userland implementation of gettimeofday() for 32 bits processes in a - * s390 kernel for use in the vDSO - * - * Copyright IBM Corp. 2008 - * Author(s): Martin Schwidefsky (schwidefsky@de.ibm.com) - */ -#include -#include -#include -#include -#include - - .text - .align 4 - .globl __kernel_gettimeofday - .type __kernel_gettimeofday,@function -__kernel_gettimeofday: - CFI_STARTPROC - ahi %r15,-16 - CFI_ADJUST_CFA_OFFSET 16 - CFI_VAL_OFFSET 15, -STACK_FRAME_OVERHEAD - basr %r5,0 -0: al %r5,13f-0b(%r5) /* get &_vdso_data */ -1: ltr %r3,%r3 /* check if tz is NULL */ - je 2f - mvc 0(8,%r3),__VDSO_TIMEZONE(%r5) -2: ltr %r2,%r2 /* check if tv is NULL */ - je 10f - l %r4,__VDSO_UPD_COUNT+4(%r5) /* load update counter */ - tml %r4,0x0001 /* pending update ? loop */ - jnz 1b - stcke 0(%r15) /* Store TOD clock */ - lm %r0,%r1,__VDSO_TS_END(%r5) /* TOD steering end time */ - s %r0,1(%r15) - sl %r1,5(%r15) - brc 3,14f - ahi %r0,-1 -14: ltr %r0,%r0 /* past end of steering? */ - jm 16f - srdl %r0,15 /* 1 per 2^16 */ - tm __VDSO_TS_DIR+3(%r5),0x01 /* steering direction? */ - jz 15f - lcr %r0,%r0 /* negative TOD offset */ - lcr %r1,%r1 - je 15f - ahi %r0,-1 -15: a %r0,1(%r15) /* add TOD timestamp */ - al %r1,5(%r15) - brc 12,17f - ahi %r0,1 - j 17f -16: lm %r0,%r1,1(%r15) /* load TOD timestamp */ -17: s %r0,__VDSO_XTIME_STAMP(%r5) /* TOD - cycle_last */ - sl %r1,__VDSO_XTIME_STAMP+4(%r5) - brc 3,3f - ahi %r0,-1 -3: ms %r0,__VDSO_TK_MULT(%r5) /* * tk->mult */ - st %r0,0(%r15) - l %r0,__VDSO_TK_MULT(%r5) - ltr %r1,%r1 - mr %r0,%r0 - jnm 4f - a %r0,__VDSO_TK_MULT(%r5) -4: al %r0,0(%r15) - al %r0,__VDSO_XTIME_NSEC(%r5) /* + xtime */ - al %r1,__VDSO_XTIME_NSEC+4(%r5) - brc 12,5f - ahi %r0,1 -5: mvc 0(4,%r15),__VDSO_XTIME_SEC+4(%r5) - cl %r4,__VDSO_UPD_COUNT+4(%r5) /* check update counter */ - jne 1b - l %r4,__VDSO_TK_SHIFT(%r5) /* Timekeeper shift */ - srdl %r0,0(%r4) /* >> tk->shift */ - l %r4,0(%r15) /* get tv_sec from stack */ - basr %r5,0 -6: ltr %r0,%r0 - jnz 7f - cl %r1,11f-6b(%r5) - jl 8f -7: ahi %r4,1 - sl %r1,11f-6b(%r5) - brc 3,6b - ahi %r0,-1 - j 6b -8: st %r4,0(%r2) /* store tv->tv_sec */ - ltr %r1,%r1 - m %r0,12f-6b(%r5) - jnm 9f - al %r0,12f-6b(%r5) -9: srl %r0,6 - st %r0,4(%r2) /* store tv->tv_usec */ -10: slr %r2,%r2 - ahi %r15,16 - CFI_ADJUST_CFA_OFFSET -16 - CFI_RESTORE 15 - br %r14 - CFI_ENDPROC -11: .long 1000000000 -12: .long 274877907 -13: .long _vdso_data - 0b - .size __kernel_gettimeofday,.-__kernel_gettimeofday diff --git a/arch/s390/kernel/vdso32/note.S b/arch/s390/kernel/vdso32/note.S deleted file mode 100644 index db19d0680a0a..000000000000 --- a/arch/s390/kernel/vdso32/note.S +++ /dev/null @@ -1,13 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0 */ -/* - * This supplies .note.* sections to go into the PT_NOTE inside the vDSO text. - * Here we can supply some information useful to userland. - */ - -#include -#include -#include - -ELFNOTE_START(Linux, 0, "a") - .long LINUX_VERSION_CODE -ELFNOTE_END diff --git a/arch/s390/kernel/vdso32/vdso32.lds.S b/arch/s390/kernel/vdso32/vdso32.lds.S deleted file mode 100644 index 721c4954cb6e..000000000000 --- a/arch/s390/kernel/vdso32/vdso32.lds.S +++ /dev/null @@ -1,142 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0 */ -/* - * This is the infamous ld script for the 32 bits vdso - * library - */ - -#include -#include - -OUTPUT_FORMAT("elf32-s390", "elf32-s390", "elf32-s390") -OUTPUT_ARCH(s390:31-bit) -ENTRY(_start) - -SECTIONS -{ - . = VDSO32_LBASE + SIZEOF_HEADERS; - - .hash : { *(.hash) } :text - .gnu.hash : { *(.gnu.hash) } - .dynsym : { *(.dynsym) } - .dynstr : { *(.dynstr) } - .gnu.version : { *(.gnu.version) } - .gnu.version_d : { *(.gnu.version_d) } - .gnu.version_r : { *(.gnu.version_r) } - - .note : { *(.note.*) } :text :note - - . = ALIGN(16); - .text : { - *(.text .stub .text.* .gnu.linkonce.t.*) - } :text - PROVIDE(__etext = .); - PROVIDE(_etext = .); - PROVIDE(etext = .); - - /* - * Other stuff is appended to the text segment: - */ - .rodata : { *(.rodata .rodata.* .gnu.linkonce.r.*) } - .rodata1 : { *(.rodata1) } - - .dynamic : { *(.dynamic) } :text :dynamic - - .eh_frame_hdr : { *(.eh_frame_hdr) } :text :eh_frame_hdr - .eh_frame : { KEEP (*(.eh_frame)) } :text - .gcc_except_table : { *(.gcc_except_table .gcc_except_table.*) } - - .rela.dyn ALIGN(8) : { *(.rela.dyn) } - .got ALIGN(8) : { *(.got .toc) } - - _end = .; - PROVIDE(end = .); - - /* - * Stabs debugging sections are here too. - */ - .stab 0 : { *(.stab) } - .stabstr 0 : { *(.stabstr) } - .stab.excl 0 : { *(.stab.excl) } - .stab.exclstr 0 : { *(.stab.exclstr) } - .stab.index 0 : { *(.stab.index) } - .stab.indexstr 0 : { *(.stab.indexstr) } - .comment 0 : { *(.comment) } - - /* - * DWARF debug sections. - * Symbols in the DWARF debugging sections are relative to the - * beginning of the section so we begin them at 0. - */ - /* DWARF 1 */ - .debug 0 : { *(.debug) } - .line 0 : { *(.line) } - /* GNU DWARF 1 extensions */ - .debug_srcinfo 0 : { *(.debug_srcinfo) } - .debug_sfnames 0 : { *(.debug_sfnames) } - /* DWARF 1.1 and DWARF 2 */ - .debug_aranges 0 : { *(.debug_aranges) } - .debug_pubnames 0 : { *(.debug_pubnames) } - /* DWARF 2 */ - .debug_info 0 : { *(.debug_info .gnu.linkonce.wi.*) } - .debug_abbrev 0 : { *(.debug_abbrev) } - .debug_line 0 : { *(.debug_line) } - .debug_frame 0 : { *(.debug_frame) } - .debug_str 0 : { *(.debug_str) } - .debug_loc 0 : { *(.debug_loc) } - .debug_macinfo 0 : { *(.debug_macinfo) } - /* SGI/MIPS DWARF 2 extensions */ - .debug_weaknames 0 : { *(.debug_weaknames) } - .debug_funcnames 0 : { *(.debug_funcnames) } - .debug_typenames 0 : { *(.debug_typenames) } - .debug_varnames 0 : { *(.debug_varnames) } - /* DWARF 3 */ - .debug_pubtypes 0 : { *(.debug_pubtypes) } - .debug_ranges 0 : { *(.debug_ranges) } - .gnu.attributes 0 : { KEEP (*(.gnu.attributes)) } - - . = ALIGN(PAGE_SIZE); - PROVIDE(_vdso_data = .); - - /DISCARD/ : { - *(.note.GNU-stack) - *(.branch_lt) - *(.data .data.* .gnu.linkonce.d.* .sdata*) - *(.bss .sbss .dynbss .dynsbss) - } -} - -/* - * Very old versions of ld do not recognize this name token; use the constant. - */ -#define PT_GNU_EH_FRAME 0x6474e550 - -/* - * We must supply the ELF program headers explicitly to get just one - * PT_LOAD segment, and set the flags explicitly to make segments read-only. - */ -PHDRS -{ - text PT_LOAD FILEHDR PHDRS FLAGS(5); /* PF_R|PF_X */ - dynamic PT_DYNAMIC FLAGS(4); /* PF_R */ - note PT_NOTE FLAGS(4); /* PF_R */ - eh_frame_hdr PT_GNU_EH_FRAME; -} - -/* - * This controls what symbols we export from the DSO. - */ -VERSION -{ - VDSO_VERSION_STRING { - global: - /* - * Has to be there for the kernel to find - */ - __kernel_gettimeofday; - __kernel_clock_gettime; - __kernel_clock_getres; - __kernel_getcpu; - - local: *; - }; -} diff --git a/arch/s390/kernel/vdso32/vdso32_wrapper.S b/arch/s390/kernel/vdso32/vdso32_wrapper.S deleted file mode 100644 index de2fb930471a..000000000000 --- a/arch/s390/kernel/vdso32/vdso32_wrapper.S +++ /dev/null @@ -1,15 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0 */ -#include -#include -#include - - __PAGE_ALIGNED_DATA - - .globl vdso32_start, vdso32_end - .balign PAGE_SIZE -vdso32_start: - .incbin "arch/s390/kernel/vdso32/vdso32.so" - .balign PAGE_SIZE -vdso32_end: - - .previous -- cgit v1.2.3