From 7e61560628d17ea6b1d8ee370f6d42694cff8758 Mon Sep 17 00:00:00 2001 From: Ulises Mendez Martinez Date: Fri, 4 Sep 2026 15:07:09 +0000 Subject: objtool: Validate disassembler headers in libopcodes probe commit 3f2de814c059 ("objtool: Fix libopcodes linking with static libraries") tested for libopcodes availability by linking a test snippet with a forward declaration of disassemble_init_for_target(). However, testing symbol linkage with an extern declaration only verifies the presence of the library (.so/.a) and bypasses checking for development headers (binutils-dev). On systems where libopcodes is present without development headers installed, the probe succeeds, enabling BUILD_DISAS. Subsequent compilation of objtool then fails: fatal error: 'bfd.h' file not found 113 | #include Additionally, the probe invokes $(HOSTCC) without $(HOSTCFLAGS), ignoring any sysroot or include flags specified for the host compiler. Fix this by including and directly in the test snippet, passing $(HOSTCFLAGS) so host compiler options are respected, and defining PACKAGE="objtool" to satisfy the configuration check in . Fixes: 3f2de814c059 ("objtool: Fix libopcodes linking with static libraries") Fixes: 436326bc525d ("objtool: fix build failure due to missing libopcodes check") Reported-by: Alice Ryhl Assisted-by: Antigravity:Gemini-Next Signed-off-by: Ulises Mendez Martinez Link: https://patch.msgid.link/20260904150710.2997558-1-umendez@google.com Signed-off-by: Josh Poimboeuf --- fs/ntfs/bitmap.h | 100 +++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 100 insertions(+) create mode 100644 fs/ntfs/bitmap.h (limited to 'fs/ntfs/bitmap.h') diff --git a/fs/ntfs/bitmap.h b/fs/ntfs/bitmap.h new file mode 100644 index 000000000..31177fe61 --- /dev/null +++ b/fs/ntfs/bitmap.h @@ -0,0 +1,100 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ +/* + * Defines for NTFS kernel bitmap handling. + * + * Copyright (c) 2004 Anton Altaparmakov + */ + +#ifndef _LINUX_NTFS_BITMAP_H +#define _LINUX_NTFS_BITMAP_H + +#include + +#include "volume.h" + +int ntfs_trim_fs(struct ntfs_volume *vol, struct fstrim_range *range); +int __ntfs_bitmap_set_bits_in_run(struct inode *vi, const s64 start_bit, + const s64 count, const u8 value, const bool is_rollback); + +/* + * ntfs_bitmap_set_bits_in_run - set a run of bits in a bitmap to a value + * @vi: vfs inode describing the bitmap + * @start_bit: first bit to set + * @count: number of bits to set + * @value: value to set the bits to (i.e. 0 or 1) + * + * Set @count bits starting at bit @start_bit in the bitmap described by the + * vfs inode @vi to @value, where @value is either 0 or 1. + * + * Return 0 on success and -errno on error. + */ +static inline int ntfs_bitmap_set_bits_in_run(struct inode *vi, + const s64 start_bit, const s64 count, const u8 value) +{ + return __ntfs_bitmap_set_bits_in_run(vi, start_bit, count, value, + false); +} + +/* + * ntfs_bitmap_set_run - set a run of bits in a bitmap + * @vi: vfs inode describing the bitmap + * @start_bit: first bit to set + * @count: number of bits to set + * + * Set @count bits starting at bit @start_bit in the bitmap described by the + * vfs inode @vi. + * + * Return 0 on success and -errno on error. + */ +static inline int ntfs_bitmap_set_run(struct inode *vi, const s64 start_bit, + const s64 count) +{ + return ntfs_bitmap_set_bits_in_run(vi, start_bit, count, 1); +} + +/* + * ntfs_bitmap_clear_run - clear a run of bits in a bitmap + * @vi: vfs inode describing the bitmap + * @start_bit: first bit to clear + * @count: number of bits to clear + * + * Clear @count bits starting at bit @start_bit in the bitmap described by the + * vfs inode @vi. + * + * Return 0 on success and -errno on error. + */ +static inline int ntfs_bitmap_clear_run(struct inode *vi, const s64 start_bit, + const s64 count) +{ + return ntfs_bitmap_set_bits_in_run(vi, start_bit, count, 0); +} + +/* + * ntfs_bitmap_set_bit - set a bit in a bitmap + * @vi: vfs inode describing the bitmap + * @bit: bit to set + * + * Set bit @bit in the bitmap described by the vfs inode @vi. + * + * Return 0 on success and -errno on error. + */ +static inline int ntfs_bitmap_set_bit(struct inode *vi, const s64 bit) +{ + return ntfs_bitmap_set_run(vi, bit, 1); +} + +/* + * ntfs_bitmap_clear_bit - clear a bit in a bitmap + * @vi: vfs inode describing the bitmap + * @bit: bit to clear + * + * Clear bit @bit in the bitmap described by the vfs inode @vi. + * + * Return 0 on success and -errno on error. + */ +static inline int ntfs_bitmap_clear_bit(struct inode *vi, const s64 bit) +{ + return ntfs_bitmap_clear_run(vi, bit, 1); +} + +#endif /* defined _LINUX_NTFS_BITMAP_H */ -- cgit v1.3.1