kernel/linux.git/tools/objtool/sync-check.sh, branch v6.6.132

objtool: Add objtool_types.h

2023-03-23T22:18:56+00:00

Reduce the amount of header sync churn by splitting the shared objtool.h types into a new file. Signed-off-by: Josh Poimboeuf Signed-off-by: Peter Zijlstra (Intel) Acked-by: Peter Zijlstra (Intel) Link: https://lore.kernel.org/r/dec622720851210ceafa12d4f4c5f9e73c832152.1677683419.git.jpoimboe@kernel.org

Merge branch 'x86/cpu' into WIP.x86/core, to merge the NOP changes & resolve a semantic conflict

2021-04-02T10:36:30+00:00

Conflict-merge this main commit in essence: a89dfde3dc3c: ("x86: Remove dynamic NOP selection") With this upstream commit: b90829704780: ("bpf: Use NOP_ATOMIC5 instead of emit_nops(&prog, 5) for BPF_TRAMP_F_CALL_ORIG") Semantic merge conflict: arch/x86/net/bpf_jit_comp.c - memcpy(prog, ideal_nops[NOP_ATOMIC5], X86_PATCH_SIZE); + memcpy(prog, x86_nops[5], X86_PATCH_SIZE); Signed-off-by: Ingo Molnar

objtool/x86: Use asm/nops.h

2021-03-15T15:37:37+00:00

Since the kernel will rely on a single canonical set of NOPs, make sure objtool uses the exact same ones. Signed-off-by: Peter Zijlstra (Intel) Signed-off-by: Borislav Petkov Link: https://lkml.kernel.org/r/20210312115749.136357911@infradead.org

x86/insn: Add a __ignore_sync_check__ marker

2021-03-15T10:00:57+00:00

Add an explicit __ignore_sync_check__ marker which will be used to mark lines which are supposed to be ignored by file synchronization check scripts, its advantage being that it explicitly denotes such lines in the code. Signed-off-by: Borislav Petkov Reviewed-by: Masami Hiramatsu Link: https://lkml.kernel.org/r/20210304174237.31945-4-bp@alien8.de

objtool: Make unwind hint definitions available to other architectures

2020-09-10T15:43:13+00:00

Unwind hints are useful to provide objtool with information about stack states in non-standard functions/code. While the type of information being provided might be very arch specific, the mechanism to provide the information can be useful for other architectures. Move the relevant unwint hint definitions for all architectures to see. [ jpoimboe: REGS_IRET -> REGS_PARTIAL ] Signed-off-by: Julien Thierry Signed-off-by: Josh Poimboeuf

objtool: Make sync-check consider the target architecture

2020-09-10T15:43:13+00:00

Do not take into account outdated headers unrelated to the build of the current architecture. [ jpoimboe: use $SRCARCH directly ] Reviewed-by: Miroslav Benes Signed-off-by: Julien Thierry Signed-off-by: Josh Poimboeuf

objtool: Group headers to check in a single list

2020-09-10T15:43:13+00:00

In order to support multiple architectures and potentially different sets of headers to compare against their kernel equivalent, it is simpler to have all headers to check in a single list. Reviewed-by: Miroslav Benes Signed-off-by: Julien Thierry Signed-off-by: Josh Poimboeuf

x86/static_call: Add inline static call implementation for x86-64

2020-09-01T07:58:05+00:00

Add the inline static call implementation for x86-64. The generated code is identical to the out-of-line case, except we move the trampoline into it's own section. Objtool uses the trampoline naming convention to detect all the call sites. It then annotates those call sites in the .static_call_sites section. During boot (and module init), the call sites are patched to call directly into the destination function. The temporary trampoline is then no longer used. [peterz: merged trampolines, put trampoline in section] Signed-off-by: Josh Poimboeuf Signed-off-by: Peter Zijlstra (Intel) Signed-off-by: Ingo Molnar Cc: Linus Torvalds Link: https://lore.kernel.org/r/20200818135804.864271425@infradead.org

objtool: Silence build output

2020-01-22T06:54:34+00:00

The sync-check.sh script prints out the path due to a "cd -" at the end of the script, even on silent builds. This isn't even needed, since the script is executed in our build instead of sourced (so it won't change the working directory of the surrounding build anyway). Just remove the cd to make the build silent. Fixes: 2ffd84ae973b ("objtool: Update sync-check.sh from perf's check-headers.sh") Signed-off-by: Olof Johansson Signed-off-by: Josh Poimboeuf Signed-off-by: Ingo Molnar Link: https://lore.kernel.org/r/cb002857fafa8186cfb9c3e43fb62e4108a1bab9.1579543924.git.jpoimboe@redhat.com

x86: xen: insn: Decode Xen and KVM emulate-prefix signature

2019-10-17T19:31:57+00:00

Decode Xen and KVM's emulate-prefix signature by x86 insn decoder. It is called "prefix" but actually not x86 instruction prefix, so this adds insn.emulate_prefix_size field instead of reusing insn.prefixes. If x86 decoder finds a special sequence of instructions of XEN_EMULATE_PREFIX and 'ud2a; .ascii "kvm"', it just counts the length, set insn.emulate_prefix_size and fold it with the next instruction. In other words, the signature and the next instruction is treated as a single instruction. Signed-off-by: Masami Hiramatsu Signed-off-by: Peter Zijlstra (Intel) Acked-by: Josh Poimboeuf Cc: Juergen Gross Cc: x86@kernel.org Cc: Boris Ostrovsky Cc: Ingo Molnar Cc: Stefano Stabellini Cc: Andrew Cooper Cc: Borislav Petkov Cc: xen-devel@lists.xenproject.org Cc: Randy Dunlap Link: https://lkml.kernel.org/r/156777564986.25081.4964537658500952557.stgit@devnote2