From xen0n@gentoo.org Thu Oct 06 10:07:10 2022 Return-Path: X-Original-To: dilfridge@gentoo.org Delivered-To: dilfridge@gentoo.org From: WANG Xuerui To: qemu-devel@nongnu.org Cc: Richard Henderson , =?UTF-8?q?Philippe=20Mathieu-Daud=C3=A9?= , WANG Xuerui , Song Gao , Xiaojuan Yang , =?UTF-8?q?Andreas=20K=20=2E=20H=C3=BCttel?= Subject: [PATCH RESEND] linux-user: Fix struct statfs ABI on loongarch64 Date: Thu, 6 Oct 2022 18:07:10 +0800 Message-Id: <20221006100710.427252-1-xen0n@gentoo.org> X-Mailer: git-send-email 2.38.0 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Previously the 32-bit version was incorrectly chosen, leading to funny but incorrect output from e.g. df(1). Simply select the version corresponding to the 64-bit asm-generic definition. For reference, this program should produce the same output no matter natively compiled or not, for loongarch64 or not: ```c #include #include int main(int argc, const char *argv[]) { struct statfs b; if (statfs(argv[0], &b)) return 1; printf("f_type = 0x%lx\n", b.f_type); printf("f_bsize = %ld\n", b.f_bsize); printf("f_blocks = %ld\n", b.f_blocks); printf("f_bfree = %ld\n", b.f_bfree); printf("f_bavail = %ld\n", b.f_bavail); return 0; } // Example output on my amd64 box, with the test binary residing on a // btrfs partition. // Native and emulated output after the fix: // // f_type = 0x9123683e // f_bsize = 4096 // f_blocks = 268435456 // f_bfree = 168406890 // f_bavail = 168355058 // Output before the fix, note the messed layout: // // f_type = 0x10009123683e // f_bsize = 723302085239504896 // f_blocks = 168355058 // f_bfree = 2250817541779750912 // f_bavail = 1099229433104 ``` Fixes: 1f63019632 ("linux-user: Add LoongArch syscall support") Signed-off-by: WANG Xuerui Cc: Song Gao Cc: Xiaojuan Yang Cc: Andreas K. Hüttel --- Resend with amended commit message to 100% clarify the example output are generated on my box and will differ for everyone else. Sorry for the noise. linux-user/syscall_defs.h | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/linux-user/syscall_defs.h b/linux-user/syscall_defs.h index 01ee10a88f..77864de57f 100644 --- a/linux-user/syscall_defs.h +++ b/linux-user/syscall_defs.h @@ -2262,7 +2262,8 @@ struct target_statfs64 { }; #elif (defined(TARGET_PPC64) || defined(TARGET_X86_64) || \ defined(TARGET_SPARC64) || defined(TARGET_AARCH64) || \ - defined(TARGET_RISCV)) && !defined(TARGET_ABI32) + defined(TARGET_RISCV) || defined(TARGET_LOONGARCH64)) && \ + !defined(TARGET_ABI32) struct target_statfs { abi_long f_type; abi_long f_bsize; -- 2.38.0