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Add program property #428

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merged 2 commits into from
Aug 2, 2024
Merged

Add program property #428

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9ee857d
Add program property
kito-cheng Sep 12, 2023
7c0334a
Drop generic rules
kito-cheng Jul 17, 2024
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11 changes: 11 additions & 0 deletions riscv-elf.adoc
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Expand Up @@ -1077,13 +1077,16 @@ The defined processor-specific section types are listed in <<rv-section-type>>.

| .riscv.attributes | SHT_RISCV_ATTRIBUTES | none
| .riscv.jvt | SHT_PROGBITS | SHF_ALLOC + SHF_EXECINSTR
| .note.gnu.property | SHT_NOTE | SHF_ALLOC
|===

+++.riscv.attributes+++ names a section that contains RISC-V ELF attributes.

+++.riscv.jvt+++ is a linker-created section to store table jump
target addresses. The minimum alignment of this section is 64 bytes.

+++.note.gnu.property+++ names a section that contains a program property note.

=== Program Header Table

The defined processor-specific segment types are listed in <<rv-seg-type>>.
Expand Down Expand Up @@ -1350,6 +1353,14 @@ value. After the merge, the resulting value will be the non-zero one.

--

=== Program Property

Program properties are used to record information about an object file or binary
that a linker or runtime loader needs to check for compatibility.

The linker should ignore and discard unknown bits in program properties, and
issue warnings or errors.

=== Mapping Symbol

The section can have a mixture of code and data or code with different ISAs.
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