663d1da1e
Denys Vlasenko
2016-04-22
Subject
scripts/trylink: document DATA_SEGMENT_ALIGN() hack
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scripts/trylink+10 -0
| @@ -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 \ | |