6.15-stable review patch. If anyone has any objections, please let me know.
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From: Fangrui Song i@maskray.me
[ Upstream commit e0eb1b6b0cd29ca7793c501d5960fd36ba11f110 ]
.rodata is implicitly included in the PT_DYNAMIC segment due to inheriting the segment of the preceding .dynamic section (in both GNU ld and LLD). When the .rodata section's size is not a multiple of 16 bytes on riscv64, llvm-readelf will report a "PT_DYNAMIC dynamic table is invalid" warning. Note: in the presence of the .dynamic section, GNU readelf and llvm-readelf's -d option decodes the dynamic section using the section.
This issue arose after commit 8f8c1ff879fab60f80f3a7aec3000f47e5b03ba9 ("riscv: vdso.lds.S: remove hardcoded 0x800 .text start addr"), which placed .rodata directly after .dynamic by removing .eh_frame.
This patch resolves the implicit inclusion into PT_DYNAMIC by explicitly specifying the :text output section phdr.
Reported-by: Nathan Chancellor nathan@kernel.org Closes: https://github.com/ClangBuiltLinux/linux/issues/2093 Signed-off-by: Fangrui Song i@maskray.me Tested-by: Nathan Chancellor nathan@kernel.org Link: https://lore.kernel.org/r/20250602-riscv-vdso-v1-1-0620cf63cff0@maskray.me Signed-off-by: Palmer Dabbelt palmer@dabbelt.com Signed-off-by: Sasha Levin sashal@kernel.org --- arch/riscv/kernel/vdso/vdso.lds.S | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/riscv/kernel/vdso/vdso.lds.S b/arch/riscv/kernel/vdso/vdso.lds.S index 8e86965a8aae4..646e268ede443 100644 --- a/arch/riscv/kernel/vdso/vdso.lds.S +++ b/arch/riscv/kernel/vdso/vdso.lds.S @@ -30,7 +30,7 @@ SECTIONS *(.data .data.* .gnu.linkonce.d.*) *(.dynbss) *(.bss .bss.* .gnu.linkonce.b.*) - } + } :text
.note : { *(.note.*) } :text :note