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-rw-r--r--arch/um/Kconfig5
-rw-r--r--arch/um/Makefile2
-rw-r--r--arch/um/drivers/line.c3
-rw-r--r--arch/um/drivers/net_kern.c1
-rw-r--r--arch/um/drivers/port_kern.c1
-rw-r--r--arch/um/drivers/xterm_kern.c1
-rw-r--r--arch/um/kernel/irq.c11
-rw-r--r--arch/um/kernel/irq_user.c2
-rw-r--r--arch/um/kernel/mem.c1
-rw-r--r--arch/um/kernel/tt/Makefile15
-rw-r--r--arch/um/kernel/tt/unmap.c31
-rw-r--r--arch/um/kernel/uml.lds.S15
-rw-r--r--arch/um/scripts/Makefile.rules6
-rw-r--r--arch/um/scripts/Makefile.unmap22
-rw-r--r--arch/um/sys-i386/Makefile2
-rw-r--r--arch/um/sys-i386/unmap.c25
-rw-r--r--arch/um/sys-x86_64/Makefile2
-rw-r--r--arch/um/sys-x86_64/unmap.c25
18 files changed, 98 insertions, 72 deletions
diff --git a/arch/um/Kconfig b/arch/um/Kconfig
index c529218..b8e952c 100644
--- a/arch/um/Kconfig
+++ b/arch/um/Kconfig
@@ -35,6 +35,11 @@ config GENERIC_CALIBRATE_DELAY
bool
default y
+# Used in kernel/irq/manage.c and include/linux/irq.h
+config IRQ_RELEASE_METHOD
+ bool
+ default y
+
menu "UML-specific options"
config MODE_TT
diff --git a/arch/um/Makefile b/arch/um/Makefile
index f2a0c40..3f07390 100644
--- a/arch/um/Makefile
+++ b/arch/um/Makefile
@@ -122,7 +122,7 @@ endif
CPPFLAGS_vmlinux.lds = $(shell echo -U$(SUBARCH) \
-DSTART=$(START) -DELF_ARCH=$(ELF_ARCH) \
-DELF_FORMAT=\"$(ELF_FORMAT)\" $(CPP_MODE-y) \
- -DKERNEL_STACK_SIZE=$(STACK_SIZE))
+ -DKERNEL_STACK_SIZE=$(STACK_SIZE) -DSUBARCH=$(SUBARCH))
#The wrappers will select whether using "malloc" or the kernel allocator.
LINK_WRAPS = -Wl,--wrap,malloc -Wl,--wrap,free -Wl,--wrap,calloc
diff --git a/arch/um/drivers/line.c b/arch/um/drivers/line.c
index 025d3be..0f59736 100644
--- a/arch/um/drivers/line.c
+++ b/arch/um/drivers/line.c
@@ -406,14 +406,12 @@ void line_disable(struct tty_struct *tty, int current_irq)
if(line->driver->read_irq == current_irq)
free_irq_later(line->driver->read_irq, tty);
else {
- free_irq_by_irq_and_dev(line->driver->read_irq, tty);
free_irq(line->driver->read_irq, tty);
}
if(line->driver->write_irq == current_irq)
free_irq_later(line->driver->write_irq, tty);
else {
- free_irq_by_irq_and_dev(line->driver->write_irq, tty);
free_irq(line->driver->write_irq, tty);
}
@@ -758,7 +756,6 @@ static void unregister_winch(struct tty_struct *tty)
if(winch->pid != -1)
os_kill_process(winch->pid, 1);
- free_irq_by_irq_and_dev(WINCH_IRQ, winch);
free_irq(WINCH_IRQ, winch);
list_del(&winch->list);
kfree(winch);
diff --git a/arch/um/drivers/net_kern.c b/arch/um/drivers/net_kern.c
index 4eeaf88..5388a74 100644
--- a/arch/um/drivers/net_kern.c
+++ b/arch/um/drivers/net_kern.c
@@ -146,7 +146,6 @@ static int uml_net_close(struct net_device *dev)
netif_stop_queue(dev);
spin_lock(&lp->lock);
- free_irq_by_irq_and_dev(dev->irq, dev);
free_irq(dev->irq, dev);
if(lp->close != NULL)
(*lp->close)(lp->fd, &lp->user);
diff --git a/arch/um/drivers/port_kern.c b/arch/um/drivers/port_kern.c
index b5ee074..c41efd2 100644
--- a/arch/um/drivers/port_kern.c
+++ b/arch/um/drivers/port_kern.c
@@ -257,7 +257,6 @@ int port_wait(void *data)
* connection. Then we loop here throwing out failed
* connections until a good one is found.
*/
- free_irq_by_irq_and_dev(TELNETD_IRQ, conn);
free_irq(TELNETD_IRQ, conn);
if(conn->fd >= 0) break;
diff --git a/arch/um/drivers/xterm_kern.c b/arch/um/drivers/xterm_kern.c
index a4fdf35..d269a80 100644
--- a/arch/um/drivers/xterm_kern.c
+++ b/arch/um/drivers/xterm_kern.c
@@ -69,7 +69,6 @@ int xterm_fd(int socket, int *pid_out)
* isn't set) this will hang... */
wait_for_completion(&data->ready);
- free_irq_by_irq_and_dev(XTERM_IRQ, data);
free_irq(XTERM_IRQ, data);
ret = data->new_fd;
diff --git a/arch/um/kernel/irq.c b/arch/um/kernel/irq.c
index d44fb52..9f18061 100644
--- a/arch/um/kernel/irq.c
+++ b/arch/um/kernel/irq.c
@@ -124,14 +124,16 @@ void irq_unlock(unsigned long flags)
spin_unlock_irqrestore(&irq_spinlock, flags);
}
-/* presently hw_interrupt_type must define (startup || enable) &&
- * disable && end */
+/* hw_interrupt_type must define (startup || enable) &&
+ * (shutdown || disable) && end */
static void dummy(unsigned int irq)
{
}
-static struct hw_interrupt_type SIGIO_irq_type = {
+/* This is used for everything else than the timer. */
+static struct hw_interrupt_type normal_irq_type = {
.typename = "SIGIO",
+ .release = free_irq_by_irq_and_dev,
.disable = dummy,
.enable = dummy,
.ack = dummy,
@@ -140,6 +142,7 @@ static struct hw_interrupt_type SIGIO_irq_type = {
static struct hw_interrupt_type SIGVTALRM_irq_type = {
.typename = "SIGVTALRM",
+ .release = free_irq_by_irq_and_dev,
.shutdown = dummy, /* never called */
.disable = dummy,
.enable = dummy,
@@ -160,7 +163,7 @@ void __init init_IRQ(void)
irq_desc[i].status = IRQ_DISABLED;
irq_desc[i].action = NULL;
irq_desc[i].depth = 1;
- irq_desc[i].handler = &SIGIO_irq_type;
+ irq_desc[i].handler = &normal_irq_type;
enable_irq(i);
}
}
diff --git a/arch/um/kernel/irq_user.c b/arch/um/kernel/irq_user.c
index b3074cb..c3ccaf2 100644
--- a/arch/um/kernel/irq_user.c
+++ b/arch/um/kernel/irq_user.c
@@ -85,8 +85,6 @@ void sigio_handler(int sig, union uml_pt_regs *regs)
next = irq_fd->next;
if(irq_fd->freed){
free_irq(irq_fd->irq, irq_fd->id);
- free_irq_by_irq_and_dev(irq_fd->irq,
- irq_fd->id);
}
}
}
diff --git a/arch/um/kernel/mem.c b/arch/um/kernel/mem.c
index c22825f..5597bd3 100644
--- a/arch/um/kernel/mem.c
+++ b/arch/um/kernel/mem.c
@@ -53,7 +53,6 @@ static void setup_highmem(unsigned long highmem_start,
for(i = 0; i < highmem_len >> PAGE_SHIFT; i++){
page = &mem_map[highmem_pfn + i];
ClearPageReserved(page);
- set_bit(PG_highmem, &page->flags);
set_page_count(page, 1);
__free_page(page);
}
diff --git a/arch/um/kernel/tt/Makefile b/arch/um/kernel/tt/Makefile
index c3faea2..3fd2554 100644
--- a/arch/um/kernel/tt/Makefile
+++ b/arch/um/kernel/tt/Makefile
@@ -3,10 +3,6 @@
# Licensed under the GPL
#
-extra-y := unmap_fin.o
-targets := unmap.o
-clean-files := unmap_tmp.o
-
obj-y = exec_kern.o exec_user.o gdb.o ksyms.o mem.o mem_user.o process_kern.o \
syscall_kern.o syscall_user.o time.o tlb.o tracer.o trap_user.o \
uaccess.o uaccess_user.o
@@ -16,14 +12,3 @@ obj-$(CONFIG_PT_PROXY) += gdb_kern.o ptproxy/
USER_OBJS := gdb.o time.o tracer.o
include arch/um/scripts/Makefile.rules
-
-UNMAP_CFLAGS := $(patsubst -pg -DPROFILING,,$(USER_CFLAGS))
-UNMAP_CFLAGS := $(patsubst -fprofile-arcs -ftest-coverage,,$(UNMAP_CFLAGS))
-
-#XXX: partially copied from arch/um/scripts/Makefile.rules
-$(obj)/unmap.o: c_flags = -Wp,-MD,$(depfile) $(UNMAP_CFLAGS)
-
-$(obj)/unmap_fin.o : $(obj)/unmap.o
- $(LD) -r -o $(obj)/unmap_tmp.o $< $(shell $(CC) -print-file-name=libc.a)
- $(OBJCOPY) $(obj)/unmap_tmp.o $@ -G switcheroo
-
diff --git a/arch/um/kernel/tt/unmap.c b/arch/um/kernel/tt/unmap.c
deleted file mode 100644
index 3f7aecd..0000000
--- a/arch/um/kernel/tt/unmap.c
+++ /dev/null
@@ -1,31 +0,0 @@
-/*
- * Copyright (C) 2000 Jeff Dike (jdike@karaya.com)
- * Licensed under the GPL
- */
-
-#include <sys/mman.h>
-
-int switcheroo(int fd, int prot, void *from, void *to, int size)
-{
- if(munmap(to, size) < 0){
- return(-1);
- }
- if(mmap(to, size, prot, MAP_SHARED | MAP_FIXED, fd, 0) != to){
- return(-1);
- }
- if(munmap(from, size) < 0){
- return(-1);
- }
- return(0);
-}
-
-/*
- * Overrides for Emacs so that we follow Linus's tabbing style.
- * Emacs will notice this stuff at the end of the file and automatically
- * adjust the settings for this buffer only. This must remain at the end
- * of the file.
- * ---------------------------------------------------------------------------
- * Local variables:
- * c-file-style: "linux"
- * End:
- */
diff --git a/arch/um/kernel/uml.lds.S b/arch/um/kernel/uml.lds.S
index dd53555..61dfd4f 100644
--- a/arch/um/kernel/uml.lds.S
+++ b/arch/um/kernel/uml.lds.S
@@ -14,19 +14,10 @@ SECTIONS
/* Used in arch/um/kernel/mem.c. Any memory between START and __binary_start
* is remapped.*/
__binary_start = .;
-#ifdef MODE_TT
- .thread_private : {
- __start_thread_private = .;
- errno = .;
- . += 4;
- arch/um/kernel/tt/unmap_fin.o (.data)
- __end_thread_private = .;
- }
- . = ALIGN(4096);
- .remap : { arch/um/kernel/tt/unmap_fin.o (.text) }
- /* We want it only if we are in MODE_TT. In both cases, however, when MODE_TT
- * is off the resulting binary segfaults.*/
+#ifdef MODE_TT
+ .remap_data : { arch/um/sys-SUBARCH/unmap_fin.o (.data .bss) }
+ .remap : { arch/um/sys-SUBARCH/unmap_fin.o (.text) }
. = ALIGN(4096); /* Init code and data */
#endif
diff --git a/arch/um/scripts/Makefile.rules b/arch/um/scripts/Makefile.rules
index 98346c7..7459d09 100644
--- a/arch/um/scripts/Makefile.rules
+++ b/arch/um/scripts/Makefile.rules
@@ -10,6 +10,12 @@ USER_OBJS := $(foreach file,$(USER_OBJS),$(obj)/$(file))
$(USER_OBJS) : c_flags = -Wp,-MD,$(depfile) $(USER_CFLAGS) \
$(CFLAGS_$(notdir $@))
+# The stubs and unmap.o can't try to call mcount or update basic block data
+define unprofile
+ $(patsubst -pg,,$(patsubst -fprofile-arcs -ftest-coverage,,$(1)))
+endef
+
+
quiet_cmd_make_link = SYMLINK $@
cmd_make_link = ln -sf $(srctree)/arch/$(SUBARCH)/$($(notdir $@)-dir)/$(notdir $@) $@
diff --git a/arch/um/scripts/Makefile.unmap b/arch/um/scripts/Makefile.unmap
new file mode 100644
index 0000000..37a8f97
--- /dev/null
+++ b/arch/um/scripts/Makefile.unmap
@@ -0,0 +1,22 @@
+clean-files += unmap_tmp.o unmap_fin.o unmap.o
+
+ifdef CONFIG_MODE_TT
+
+#Always build unmap_fin.o
+extra-y += unmap_fin.o
+#Do dependency tracking for unmap.o (it will be always built, but won't get the tracking unless we use this).
+targets += unmap.o
+
+#XXX: partially copied from arch/um/scripts/Makefile.rules
+$(obj)/unmap.o: _c_flags = $(call unprofile,$(CFLAGS))
+
+quiet_cmd_wrapld = LD $@
+define cmd_wrapld
+ $(LD) -r -o $(obj)/unmap_tmp.o $< $(shell $(CC) -print-file-name=libc.a); \
+ $(OBJCOPY) $(obj)/unmap_tmp.o $@ -G switcheroo
+endef
+
+$(obj)/unmap_fin.o : $(obj)/unmap.o FORCE
+ $(call if_changed,wrapld)
+
+endif
diff --git a/arch/um/sys-i386/Makefile b/arch/um/sys-i386/Makefile
index 4351e56..095bcdb 100644
--- a/arch/um/sys-i386/Makefile
+++ b/arch/um/sys-i386/Makefile
@@ -17,3 +17,5 @@ highmem.c-dir = mm
module.c-dir = kernel
subdir- := util
+
+include arch/um/scripts/Makefile.unmap
diff --git a/arch/um/sys-i386/unmap.c b/arch/um/sys-i386/unmap.c
new file mode 100644
index 0000000..1368752
--- /dev/null
+++ b/arch/um/sys-i386/unmap.c
@@ -0,0 +1,25 @@
+/*
+ * Copyright (C) 2000 Jeff Dike (jdike@karaya.com)
+ * Licensed under the GPL
+ */
+
+#include <linux/mman.h>
+#include <asm/unistd.h>
+
+static int errno;
+
+static inline _syscall2(int,munmap,void *,start,size_t,len)
+static inline _syscall6(void *,mmap2,void *,addr,size_t,len,int,prot,int,flags,int,fd,off_t,offset)
+int switcheroo(int fd, int prot, void *from, void *to, int size)
+{
+ if(munmap(to, size) < 0){
+ return(-1);
+ }
+ if(mmap2(to, size, prot, MAP_SHARED | MAP_FIXED, fd, 0) != to){
+ return(-1);
+ }
+ if(munmap(from, size) < 0){
+ return(-1);
+ }
+ return(0);
+}
diff --git a/arch/um/sys-x86_64/Makefile b/arch/um/sys-x86_64/Makefile
index 608466a..2bc6f68 100644
--- a/arch/um/sys-x86_64/Makefile
+++ b/arch/um/sys-x86_64/Makefile
@@ -29,3 +29,5 @@ thunk.S-dir = lib
module.c-dir = kernel
subdir- := util
+
+include arch/um/scripts/Makefile.unmap
diff --git a/arch/um/sys-x86_64/unmap.c b/arch/um/sys-x86_64/unmap.c
new file mode 100644
index 0000000..bc7094c
--- /dev/null
+++ b/arch/um/sys-x86_64/unmap.c
@@ -0,0 +1,25 @@
+/*
+ * Copyright (C) 2000 Jeff Dike (jdike@karaya.com)
+ * Licensed under the GPL
+ */
+
+#include <linux/mman.h>
+#include <asm/unistd.h>
+
+static int errno;
+
+static inline _syscall2(int,munmap,void *,start,size_t,len)
+static inline _syscall6(void *,mmap,void *,addr,size_t,len,int,prot,int,flags,int,fd,off_t,offset)
+int switcheroo(int fd, int prot, void *from, void *to, int size)
+{
+ if(munmap(to, size) < 0){
+ return(-1);
+ }
+ if(mmap(to, size, prot, MAP_SHARED | MAP_FIXED, fd, 0) != to){
+ return(-1);
+ }
+ if(munmap(from, size) < 0){
+ return(-1);
+ }
+ return(0);
+}
generated by cgit v1.1 at 2025-08-17 23:37:06 +0000