Change #275160

Comments

build: reduce size of multi-call binary by reusing test logic
Map the '[' command to which selects appropriate behavior at runtime,
rather than separate binaries for each closely related utility.

    $ size src/coreutils-prev
       text    data     bss     dec     hex filename
    1485188    7348 2191968 3684504  383898 src/coreutils-prev
    $ size src/coreutils
       text    data     bss     dec     hex filename
    1476092    7348 2191936 3675376  3814f0 src/coreutils

* src/local.mk (noinst_HEADERS): Add src/test.h.
(src___SOURCES): Remove src/lbracket.c. Add src/test.c and
src/test-lbracket.c.
(src_test_SOURCES): New variable.
(src/coreutils.h): Adjust the function name to be
single_binary_main_lbracket instead of single_binary_main__.
* build-aux/gen-single-binary.sh: Likewise. Map '[' to 'test'.
(override_single): Adjust the file name to be coreutils-lbracket.c
instead of coreutils-_.c.
* src/lbracket.c: Remove file.
* cfg.mk (_src): Don't match src/lbracket.c in the regular
expression. Match src/test-lbracket.c and src/test-test.c.
* src/coreutils-lbracket.c: New file.
* src/test-lbracket.c: Likewise.
* src/test-test.c: Likewise.
* src/test.h: Likewise.
* src/test.c: Include test.h.
(LBRACKET): Remove macro.
(PROGRAM_NAME): Use the variable TEST_MODE to determine the program
name.
(main): Use the variable TEST_MODE instead of the LBRACKET macro to
implement behavior specific to '['.
* NEWS: Mention the improvement.

Changed files

• NEWS
• build-aux/gen-single-binary.sh
• cfg.mk
• src/coreutils-lbracket.c
• src/lbracket.c
• src/local.mk
• src/test-lbracket.c
• src/test-test.c
• src/test.c
• src/test.h