diff options
Diffstat (limited to 'Makerules')
| -rw-r--r-- | Makerules | 46 |
1 files changed, 0 insertions, 46 deletions
@@ -214,52 +214,6 @@ sed-remove-dotdot := -e 's@ *\([^ \/$$][^ \]*\)@ $$(..)\1@g' \ -e 's@^\([^ \/$$][^ \]*\)@$$(..)\1@g' endif -ifdef gen-py-const-headers -# We'll use a static pattern rule to match .pysym files with their -# corresponding generated .py files. -# The generated .py files go in the submodule's dir in the glibc source dir. -py-const-files := $(patsubst %.pysym,%.py,$(gen-py-const-headers)) -py-const-dir := $(objpfx) -py-const := $(addprefix $(py-const-dir),$(py-const-files)) -py-const-script := $(..)scripts/gen-py-const.awk - -# This is a hack we use to generate .py files with constants for Python -# pretty printers. It works the same way as gen-as-const. -# See scripts/gen-py-const.awk for details on how the awk | gcc mechanism -# works. -# -# $@.tmp and $@.tmp2 are temporary files we use to store the partial contents -# of the target file. We do this instead of just writing on $@ because, if the -# build process terminates prematurely, re-running Make wouldn't run this rule -# since Make would see that the target file already exists (despite it being -# incomplete). -# -# The sed line replaces "@name@SOME_NAME@value@SOME_VALUE@" strings from the -# output of 'gcc -S' with "SOME_NAME = SOME_VALUE" strings. -# The '-n' option, combined with the '/p' command, makes sed output only the -# modified lines instead of the whole input file. The output is redirected -# to a .py file; we'll import it in the pretty printers file to read -# the constants generated by gen-py-const.awk. -# The regex has two capturing groups, for SOME_NAME and SOME_VALUE -# respectively. Notice SOME_VALUE may be prepended by a special character, -# depending on the assembly syntax (e.g. immediates are prefixed by a '$' -# in AT&T x86, and by a '#' in ARM). We discard it using a complemented set -# before the second capturing group. -$(py-const): $(py-const-dir)%.py: %.pysym $(py-const-script) \ - $(common-before-compile) - $(make-target-directory) - $(AWK) -f $(py-const-script) $< \ - | $(CC) -S -o $@.tmp $(CFLAGS) $(CPPFLAGS) -x c - - echo '# GENERATED FILE\n' > $@.tmp2 - echo '# Constant definitions for pretty printers.' >> $@.tmp2 - echo '# See gen-py-const.awk for details.\n' >> $@.tmp2 - sed -n -r 's/^.*@name@([^@]+)@value@[^[:xdigit:]Xx-]*([[:xdigit:]Xx-]+)@.*/\1 = \2/p' \ - $@.tmp >> $@.tmp2 - mv -f $@.tmp2 $@ - rm -f $@.tmp - -generated += $(py-const) -endif # gen-py-const-headers ifdef gen-as-const-headers # Generating headers for assembly constants. |