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RISC-V: Add GNU_PROPERTY_RISCV_FEATURE_1_CFI_SS and GNU_PROPERTY_RISCV_FEATURE_1_CFI_LP_UNLABELED

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This patch adds two new GNU properties for RISC-V:
GNU_PROPERTY_RISCV_FEATURE_1_CFI_SS and GNU_PROPERTY_RISCV_FEATURE_1_CFI_LP_UNLABELED.

We only add readelf and define the properties in this patch.

Ref: https://github.com/riscv-non-isa/riscv-elf-psabi-doc/pull/417
This commit is contained in:
Kito Cheng
2025-06-11 16:33:47 +08:00
committed by Nelson Chu
parent 51a39a59ca
commit 4ad5217caf
5 changed files with 101 additions and 0 deletions
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39
binutils/readelf.c
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@@ -21287,6 +21287,33 @@ decode_aarch64_feature_1_and (unsigned int bitmask)
}
}
static void
decode_riscv_feature_1_and (unsigned int bitmask)
{
while (bitmask)
{
unsigned int bit = bitmask & (- bitmask);
bitmask &= ~ bit;
switch (bit)
{
case GNU_PROPERTY_RISCV_FEATURE_1_CFI_LP_UNLABELED:
printf ("CFI_LP_UNLABELED");
break;
case GNU_PROPERTY_RISCV_FEATURE_1_CFI_SS:
printf ("CFI_SS");
break;
default:
printf (_("<unknown: %x>"), bit);
break;
}
if (bitmask)
printf (", ");
}
}
static void
decode_1_needed (unsigned int bitmask)
{
@@ -21477,6 +21504,18 @@ print_gnu_property_note (Filedata * filedata, Elf_Internal_Note * pnote)
goto next;
}
}
else if (filedata->file_header.e_machine == EM_RISCV)
{
if (type == GNU_PROPERTY_RISCV_FEATURE_1_AND)
{
printf ("RISC-V AND feature: ");
if (datasz != 4)
printf (_("<corrupt length: %#x> "), datasz);
else
decode_riscv_feature_1_and (byte_get (ptr, 4));
goto next;
}
}
}
else
{