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| author | Palmer Dabbelt <palmer@rivosinc.com> | 2023-02-21 16:29:10 -0800 |
|---|---|---|
| committer | Palmer Dabbelt <palmer@rivosinc.com> | 2023-02-21 17:21:49 -0800 |
| commit | f3af3b0039fe4760fe89a05beb4a0bebbda25ac8 (patch) | |
| tree | 5645326efe7295230aefaafb8460723a5b0c039b /arch/riscv | |
| parent | 130aee3fd9981297ff9354e5d5609cd59aafbbea (diff) | |
| parent | f4b71bff8d8580eaaf56ec6c5305542a3d3a04bd (diff) | |
| download | lwn-f3af3b0039fe4760fe89a05beb4a0bebbda25ac8.tar.gz lwn-f3af3b0039fe4760fe89a05beb4a0bebbda25ac8.zip | |
Merge patch series "riscv: improve link and support ARCH_WANT_LD_ORPHAN_WARN"
Jisheng Zhang <jszhang@kernel.org> says:
This series tries to improve link time handling of riscv:
patch1 adds the missing RUNTIME_DISCARD_EXIT as suggested by Masahiro.
Similar as other architectures such as x86, arm64 and so on, enable
ARCH_WANT_LD_ORPHAN_WARN to enable linker orphan warnings to prevent
from missing any new sections in future. So the following two patches
are preparation ones, and the last patch finally selects
ARCH_WANT_LD_ORPHAN_WARN
* b4-shazam-merge:
riscv: select ARCH_WANT_LD_ORPHAN_WARN for !XIP_KERNEL
riscv: vmlinux.lds.S: explicitly catch .init.bss sections from EFI stub
riscv: vmlinux.lds.S: explicitly catch .riscv.attributes sections
riscv: vmlinux.lds.S: explicitly catch .rela.dyn symbols
riscv: lds: define RUNTIME_DISCARD_EXIT
Link: https://lore.kernel.org/r/20230119155417.2600-1-jszhang@kernel.org
Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
Diffstat (limited to 'arch/riscv')
| -rw-r--r-- | arch/riscv/Kconfig | 1 | ||||
| -rw-r--r-- | arch/riscv/kernel/vmlinux.lds.S | 9 |
2 files changed, 10 insertions, 0 deletions
diff --git a/arch/riscv/Kconfig b/arch/riscv/Kconfig index 6f52d3ec93c3..6292baab1516 100644 --- a/arch/riscv/Kconfig +++ b/arch/riscv/Kconfig @@ -47,6 +47,7 @@ config RISCV select ARCH_WANT_FRAME_POINTERS select ARCH_WANT_GENERAL_HUGETLB select ARCH_WANT_HUGE_PMD_SHARE if 64BIT + select ARCH_WANT_LD_ORPHAN_WARN if !XIP_KERNEL select ARCH_WANTS_THP_SWAP if HAVE_ARCH_TRANSPARENT_HUGEPAGE select BINFMT_FLAT_NO_DATA_START_OFFSET if !MMU select BUILDTIME_TABLE_SORT if MMU diff --git a/arch/riscv/kernel/vmlinux.lds.S b/arch/riscv/kernel/vmlinux.lds.S index 4e6c88aa4d87..b2813b5e47a0 100644 --- a/arch/riscv/kernel/vmlinux.lds.S +++ b/arch/riscv/kernel/vmlinux.lds.S @@ -5,6 +5,7 @@ */ #define RO_EXCEPTION_TABLE_ALIGN 4 +#define RUNTIME_DISCARD_EXIT #ifdef CONFIG_XIP_KERNEL #include "vmlinux-xip.lds.S" @@ -86,6 +87,9 @@ SECTIONS /* Start of init data section */ __init_data_begin = .; INIT_DATA_SECTION(16) + .init.bss : { + *(.init.bss) /* from the EFI stub */ + } .exit.data : { EXIT_DATA @@ -96,6 +100,10 @@ SECTIONS *(.rel.dyn*) } + .rela.dyn : { + *(.rela*) + } + __init_data_end = .; . = ALIGN(8); @@ -141,6 +149,7 @@ SECTIONS STABS_DEBUG DWARF_DEBUG ELF_DETAILS + .riscv.attributes 0 : { *(.riscv.attributes) } DISCARDS } |