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BaseTools/Scripts/GccBase.lds: Use separate R-W and RW- ELF segments 

To prevent the ELF linkers from complaining about emitted ELF segments
that require both writable and executable permissions, define two
separate R-X and RW- ELF segments, and emit the output sections
explicitly into those segments as appropriate.

Note that this has no bearing on the PE image, and using a single RW-
segment would probably be fine too.

Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
This commit is contained in:
Ard Biesheuvel 2025-01-28 10:34:01 +01:00 committed by mergify[bot]
parent e5d95c786b
commit f2b42c83dd
1 changed files with 11 additions and 3 deletions
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14
BaseTools/Scripts/GccBase.lds
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@ -10,6 +10,12 @@
**/
PHDRS {
text PT_LOAD FLAGS(5); /* R_X */
data PT_LOAD FLAGS(6); /* RW_ */
dynamic PT_DYNAMIC FLAGS(4); /* R__ */
}
SECTIONS {
/*
@ -35,7 +41,7 @@ SECTIONS {
* emitted GUIDs here.
*/
*:AutoGen.obj(.data.g*Guid)
}
} :text
/*
* The alignment of the .data section should be less than or equal to the
@ -46,19 +52,21 @@ SECTIONS {
.data ALIGN(ALIGNOF(.text)) : ALIGN(CONSTANT(COMMONPAGESIZE)) {
*(.data .data.* .gnu.linkonce.d.*)
*(.bss .bss.*)
}
} :data
.eh_frame ALIGN(CONSTANT(COMMONPAGESIZE)) : {
KEEP (*(.eh_frame))
}
.dynamic : { *(.dynamic) } :data :dynamic
.rela (INFO) : {
*(.rela .rela.*)
}
.hii : ALIGN(CONSTANT(COMMONPAGESIZE)) {
KEEP (*(.hii))
}
} :data
.got : {
*(.got)