diff options
| author | Greg Ungerer <gerg@kernel.org> | 2023-07-11 16:07:54 +0300 |
|---|---|---|
| committer | Palmer Dabbelt <palmer@rivosinc.com> | 2023-08-24 00:17:43 +0300 |
| commit | 9549fb354ef1a451ceddfa404ae3e943c5c803d0 (patch) | |
| tree | 997fbf877b8e35e957479814c29510c767ebc74a /arch/riscv/include/uapi | |
| parent | b922bf04d2c1355633bdefbc2ed5fba1f0d4df07 (diff) | |
| download | linux-9549fb354ef1a451ceddfa404ae3e943c5c803d0.tar.xz | |
riscv: support the elf-fdpic binfmt loader
Add support for enabling and using the binfmt_elf_fdpic program loader
on RISC-V platforms. The most important change is to setup registers
during program load to pass the mapping addresses to the new process.
One of the interesting features of the elf-fdpic loader is that it
also allows appropriately compiled ELF format binaries to be loaded on
nommu systems. Appropriate being those compiled with -pie.
Signed-off-by: Greg Ungerer <gerg@kernel.org>
Acked-by: Kees Cook <keescook@chromium.org>
Link: https://lore.kernel.org/r/20230711130754.481209-3-gerg@kernel.org
Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
Diffstat (limited to 'arch/riscv/include/uapi')
| -rw-r--r-- | arch/riscv/include/uapi/asm/ptrace.h | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/arch/riscv/include/uapi/asm/ptrace.h b/arch/riscv/include/uapi/asm/ptrace.h index e17c550986a6..30f6d6537adc 100644 --- a/arch/riscv/include/uapi/asm/ptrace.h +++ b/arch/riscv/include/uapi/asm/ptrace.h @@ -10,6 +10,11 @@ #include <linux/types.h> +#define PTRACE_GETFDPIC 33 + +#define PTRACE_GETFDPIC_EXEC 0 +#define PTRACE_GETFDPIC_INTERP 1 + /* * User-mode register state for core dumps, ptrace, sigcontext * |