pm24.git/arch/parisc, branch rust-6.8

parisc: Fix asm operand number out of range build error in bug table

2023-11-27T10:01:38Z

Build is broken if CONFIG_DEBUG_BUGVERBOSE=n. Fix it be using the correct asm operand number. Signed-off-by: Helge Deller Reported-by: Linux Kernel Functional Testing Fixes: fe76a1349f23 ("parisc: Use natural CPU alignment for bug_table") Cc: stable@vger.kernel.org # v6.0+

parisc: Reduce size of the bug_table on 64-bit kernel by half

2023-11-25T08:43:18Z

Enable GENERIC_BUG_RELATIVE_POINTERS which will store 32-bit relative offsets to the bug address and the source file name instead of 64-bit absolute addresses. This effectively reduces the size of the bug_table[] array by half on 64-bit kernels. Signed-off-by: Helge Deller

parisc: Drop the HP-UX ENOSYM and EREMOTERELEASE error codes

2023-11-25T08:43:18Z

Those return codes are only defined for the parisc architecture and are leftovers from when we wanted to be HP-UX compatible. They are not returned by any Linux kernel syscall but do trigger problems with the glibc strerrorname_np() and strerror() functions as reported in glibc issue #31080. There is no need to keep them, so simply remove them. Signed-off-by: Helge Deller Reported-by: Bruno Haible Closes: https://sourceware.org/bugzilla/show_bug.cgi?id=31080 Cc: stable@vger.kernel.org

parisc: Use natural CPU alignment for bug_table

2023-11-25T08:43:18Z

Make sure that the __bug_table section gets 32- or 64-bit aligned, depending if a 32- or 64-bit kernel is being built. Mark it non-writeable and use .blockz instead of the .org assembler directive to pad the struct. Signed-off-by: Helge Deller Cc: stable@vger.kernel.org # v6.0+

parisc: Ensure 32-bit alignment on parisc unwind section

2023-11-25T08:43:17Z

Make sure the .PARISC.unwind section will be 32-bit aligned. Signed-off-by: Helge Deller Cc: stable@vger.kernel.org # v6.0+

parisc: Mark lock_aligned variables 16-byte aligned on SMP

2023-11-25T08:43:17Z

On parisc we need 16-byte alignment for variables which are used for locking. Mark the __lock_aligned attribute acordingly so that the .data..lock_aligned section will get that alignment in the generated object files. Signed-off-by: Helge Deller Cc: stable@vger.kernel.org # v6.0+

parisc: Mark jump_table naturally aligned

2023-11-25T08:43:17Z

The jump_table stores two 32-bit words and one 32- (on 32-bit kernel) or one 64-bit word (on 64-bit kernel). Ensure that the last word is always 64-bit aligned on a 64-bit kernel by aligning the whole structure on sizeof(long). Signed-off-by: Helge Deller Cc: stable@vger.kernel.org # v6.0+

parisc: Mark altinstructions read-only and 32-bit aligned

2023-11-25T08:43:17Z

Signed-off-by: Helge Deller Cc: stable@vger.kernel.org # v6.0+

parisc: Mark ex_table entries 32-bit aligned in uaccess.h

2023-11-25T08:43:17Z

Add an align statement to tell the linker that all ex_table entries and as such the whole ex_table section should be 32-bit aligned in vmlinux and modules. Signed-off-by: Helge Deller Cc: stable@vger.kernel.org # v6.0+

parisc: Mark ex_table entries 32-bit aligned in assembly.h

2023-11-25T08:43:17Z