mirror of
https://github.com/joel16/android_kernel_sony_msm8994_rework.git
synced 2024-11-24 12:29:53 +00:00
c53aeca059
Most system calls seems to get added to i386 first. This patch automatically generates a warning for any new system call which is implemented on i386 but not the architecture currently being compiled. On PowerPC at the moment, for example, it results in these warnings: init/missing_syscalls.h:935:3: warning: #warning syscall sync_file_range not implemented init/missing_syscalls.h:947:3: warning: #warning syscall getcpu not implemented init/missing_syscalls.h:950:3: warning: #warning syscall epoll_pwait not implemented The file scripts/checksyscalls.sh list a number of legacy system calls that are ignored because they only makes sense on i386 systems. Other contributors to this patch are Russell King <rmk+lkml@arm.linux.org.uk> and Stéphane Jourdois <kwisatz@rubis.org> Signed-off-by: David Woodhouse <dwmw2@infradead.org> Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
60 lines
1.5 KiB
Makefile
60 lines
1.5 KiB
Makefile
#
|
|
# Kbuild for top-level directory of the kernel
|
|
# This file takes care of the following:
|
|
# 1) Generate asm-offsets.h
|
|
# 2) Check for missing system calls
|
|
|
|
#####
|
|
# 1) Generate asm-offsets.h
|
|
#
|
|
|
|
offsets-file := include/asm-$(ARCH)/asm-offsets.h
|
|
|
|
always := $(offsets-file)
|
|
targets := $(offsets-file)
|
|
targets += arch/$(ARCH)/kernel/asm-offsets.s
|
|
|
|
# Default sed regexp - multiline due to syntax constraints
|
|
define sed-y
|
|
"/^->/{s:^->\([^ ]*\) [\$$#]*\([^ ]*\) \(.*\):#define \1 \2 /* \3 */:; s:->::; p;}"
|
|
endef
|
|
# Override default regexp for specific architectures
|
|
sed-$(CONFIG_MIPS) := "/^@@@/{s/^@@@//; s/ \#.*\$$//; p;}"
|
|
|
|
quiet_cmd_offsets = GEN $@
|
|
define cmd_offsets
|
|
(set -e; \
|
|
echo "#ifndef __ASM_OFFSETS_H__"; \
|
|
echo "#define __ASM_OFFSETS_H__"; \
|
|
echo "/*"; \
|
|
echo " * DO NOT MODIFY."; \
|
|
echo " *"; \
|
|
echo " * This file was generated by Kbuild"; \
|
|
echo " *"; \
|
|
echo " */"; \
|
|
echo ""; \
|
|
sed -ne $(sed-y) $<; \
|
|
echo ""; \
|
|
echo "#endif" ) > $@
|
|
endef
|
|
|
|
# We use internal kbuild rules to avoid the "is up to date" message from make
|
|
arch/$(ARCH)/kernel/asm-offsets.s: arch/$(ARCH)/kernel/asm-offsets.c FORCE
|
|
$(Q)mkdir -p $(dir $@)
|
|
$(call if_changed_dep,cc_s_c)
|
|
|
|
$(obj)/$(offsets-file): arch/$(ARCH)/kernel/asm-offsets.s Kbuild
|
|
$(Q)mkdir -p $(dir $@)
|
|
$(call cmd,offsets)
|
|
|
|
#####
|
|
# 2) Check for missing system calls
|
|
#
|
|
|
|
quiet_cmd_syscalls = CALL $<
|
|
cmd_syscalls = $(CONFIG_SHELL) $< $(CC) $(c_flags)
|
|
|
|
PHONY += missing-syscalls
|
|
missing-syscalls: scripts/checksyscalls.sh FORCE
|
|
$(call cmd,syscalls)
|