diff options
| author | Richard Henderson <richard.henderson@linaro.org> | 2023-08-02 15:17:33 -0700 |
|---|---|---|
| committer | Richard Henderson <richard.henderson@linaro.org> | 2023-08-08 13:27:15 -0700 |
| commit | da2b71fab63f2396396021917eed9d52f33a45c0 (patch) | |
| tree | 59f4b4fde6d99cb6e61f81bf40832ec344716a1f /linux-user/main.c | |
| parent | 2d708164e0475064e0e2167bd73e8570e22df1e0 (diff) | |
linux-user: Define ELF_ET_DYN_BASE in $guest/target_mman.h
Copy each guest kernel's default value, then bound it
against reserved_va or the host address space.
Tested-by: Helge Deller <deller@gmx.de>
Reviewed-by: Helge Deller <deller@gmx.de>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Diffstat (limited to 'linux-user/main.c')
| -rw-r--r-- | linux-user/main.c | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/linux-user/main.c b/linux-user/main.c index be621dc792..96be354897 100644 --- a/linux-user/main.c +++ b/linux-user/main.c @@ -847,6 +847,21 @@ int main(int argc, char **argv, char **envp) } mmap_next_start = task_unmapped_base; + /* Similarly for elf_et_dyn_base. */ + if (reserved_va) { + if (ELF_ET_DYN_BASE < reserved_va) { + elf_et_dyn_base = ELF_ET_DYN_BASE; + } else { + /* The most common default formula is TASK_SIZE / 3 * 2. */ + elf_et_dyn_base = TARGET_PAGE_ALIGN(reserved_va / 3) * 2; + } + } else if (ELF_ET_DYN_BASE < UINTPTR_MAX) { + elf_et_dyn_base = ELF_ET_DYN_BASE; + } else { + /* 32-bit host: pick something medium size. */ + elf_et_dyn_base = 0x18000000; + } + #pragma GCC diagnostic pop { |