Re: [Minios-devel] [UNIKRAFT PATCH] lib/syscall_shim: Generate syscall_nrs2.h

[Felipe Huici <Felipe.Huici@xxxxxxxxx>]

Hi Simon, looks good, thanks.

-- Felipe

Reviewed-by: Felipe Huici <felipe.huici@xxxxxxxxx>

On 07.02.20, 10:04, "Simon Kuenzer" <simon.kuenzer@xxxxxxxxx> wrote:

    Generates a second header containing the syscall numbers. Instead of
    using the format SYS_<name>, it introduces the syscall number
    definitions with __NR_<name>. This can be handy for some libc and
    language environment ports.
    
    Signed-off-by: Simon Kuenzer <simon.kuenzer@xxxxxxxxx>
    ---
     lib/syscall_shim/Makefile.uk          |  7 ++++++-
     lib/syscall_shim/gen_syscall_nrs2.awk | 13 +++++++++++++
     2 files changed, 19 insertions(+), 1 deletion(-)
     create mode 100644 lib/syscall_shim/gen_syscall_nrs2.awk
    
    diff --git a/lib/syscall_shim/Makefile.uk b/lib/syscall_shim/Makefile.uk
    index 17de49cd..c01ee494 100644
    --- a/lib/syscall_shim/Makefile.uk
    +++ b/lib/syscall_shim/Makefile.uk
    @@ -2,7 +2,7 @@ $(eval $(call 
addlib_s,libsyscall_shim,$(CONFIG_LIBSYSCALL_SHIM)))
     
     LIBSYSCALL_SHIM_INCLUDES_PATH := $(LIBSYSCALL_SHIM_BUILD)/include/uk/bits
     
    -LIBSYSCALL_SHIM_PHONY_SRC := syscall_map.h syscall_stubs.h syscall_nrs.h
    +LIBSYSCALL_SHIM_PHONY_SRC := syscall_map.h syscall_stubs.h syscall_nrs.h 
syscall_nrs2.h
     LIBSYSCALL_SHIM_PHONY_SRC := $(addprefix 
$(LIBSYSCALL_SHIM_INCLUDES_PATH)/, $(LIBSYSCALL_SHIM_PHONY_SRC))
     LIBSYSCALL_SHIM_PHONY_SRC += 
$(LIBSYSCALL_SHIM_BUILD)/provided_syscalls.h.in
     LIBSYSCALL_SHIM_PHONY_SRC_NEW := $(addsuffix .new, 
$(LIBSYSCALL_SHIM_PHONY_SRC))
    @@ -31,6 +31,11 @@ $(LIBSYSCALL_SHIM_INCLUDES_PATH)/syscall_nrs.h.new: 
$(LIBSYSCALL_SHIM_BASE)/gen_
                $(AWK) -f $(LIBSYSCALL_SHIM_BASE)/gen_syscall_nrs.awk \
                $(LIBSYSCALL_SHIM_TEMPL) > $@)
     
    +$(LIBSYSCALL_SHIM_INCLUDES_PATH)/syscall_nrs2.h.new: 
$(LIBSYSCALL_SHIM_BASE)/gen_syscall_nrs2.awk $(LIBSYSCALL_SHIM_TEMPL)
    +   $(call build_cmd,GEN,libsyscall_shim,$(notdir $@), \
    +           $(AWK) -f $(LIBSYSCALL_SHIM_BASE)/gen_syscall_nrs2.awk \
    +           $(LIBSYSCALL_SHIM_TEMPL) > $@)
    +
     $(LIBSYSCALL_SHIM_INCLUDES_PATH)/syscall_map.h.new: 
$(LIBSYSCALL_SHIM_BASE)/gen_syscall_map.awk $(LIBSYSCALL_SHIM_TEMPL)
        $(call build_cmd,GEN,libsyscall_shim,$(notdir $@), \
                $(AWK) -f  $(LIBSYSCALL_SHIM_BASE)/gen_syscall_map.awk \
    diff --git a/lib/syscall_shim/gen_syscall_nrs2.awk 
b/lib/syscall_shim/gen_syscall_nrs2.awk
    new file mode 100644
    index 00000000..fe658dcc
    --- /dev/null
    +++ b/lib/syscall_shim/gen_syscall_nrs2.awk
    @@ -0,0 +1,13 @@
    +BEGIN {
    +   print "/* Automatically generated file; DO NOT EDIT */"
    +   print "#ifndef __UK_SYSCALL_NRS_2_H__"
    +   print "#define __UK_SYSCALL_NRS_2_H__"
    +}
    +
    +/#define __NR_/{
    +    printf "#define __NR_%s\t\t%s\n", substr($2,6),$3
    +}
    +
    +END {
    +   print "#endif /* __UK_SYSCALL_NRS_2_H__ */"
    +}
    -- 
    2.20.1
    
    

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