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| author | Denys Vlasenko | 2016-04-22 02:00:04 +0200 |
|---|---|---|
| committer | Denys Vlasenko | 2016-04-22 02:00:04 +0200 |
| commit | 663d1da1e68b15397c00d6a094f78c2cf08358ea (patch) | |
| tree | 7f132caff445a1ed81529af1d3edd45f4515ef0a | |
| parent | 7ff24bd5fb37c58d9e41743a910df147357dda61 (diff) | |
| download | busybox-663d1da1e68b15397c00d6a094f78c2cf08358ea.zip busybox-663d1da1e68b15397c00d6a094f78c2cf08358ea.tar.gz | |
scripts/trylink: document DATA_SEGMENT_ALIGN() hack
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
| -rwxr-xr-x | scripts/trylink | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/scripts/trylink b/scripts/trylink index 15435f0..129570a 100755 --- a/scripts/trylink +++ b/scripts/trylink @@ -209,6 +209,16 @@ else # *(.bss SORT_BY_ALIGNMENT(.bss.*) .gnu.linkonce.b.*) # This will eliminate most of the padding (~3kb). # Hmm, "ld --sort-section alignment" should do it too. + # + # There is a ld hack which is meant to decrease disk usage + # at the cost of more RAM usage (??!!) in standard ld script: + # /* Adjust the address for the data segment. We want to adjust up to + # the same address within the page on the next page up. */ + # . = ALIGN (0x1000) - ((0x1000 - .) & (0x1000 - 1)); . = DATA_SEGMENT_ALIGN (0x1000, 0x1000); + # Replace it with: + # . = ALIGN (0x1000); . = DATA_SEGMENT_ALIGN (0x1000, 0x1000); + # to unconditionally align .data to the next page boundary, + # instead of "next page, plus current offset in this page" try $CC $CFLAGS $LDFLAGS \ -o $EXE \ $SORT_COMMON \ |