new file mode 100644
@@ -0,0 +1,64 @@
+From 027b649fdb831868e71be01cafdacc49a5f419ab Mon Sep 17 00:00:00 2001
+From: Mark Wielaard <mark@klomp.org>
+Date: Fri, 17 Nov 2023 14:01:21 +0100
+Subject: [PATCH 1/4] valgrind-monitor.py regular expressions should use raw
+ strings
+
+With python 3.12 gdb will produce the following SyntaxWarning when
+loading valgrind-monitor-def.py:
+
+ /usr/share/gdb/auto-load/valgrind-monitor-def.py:214:
+ SyntaxWarning: invalid escape sequence '\['
+ if re.fullmatch("^0x[0123456789ABCDEFabcdef]+\[[^\[\]]+\]$", arg_str):
+
+In a future python version this will become an SyntaxError.
+
+Use a raw strings for the regular expression.
+
+https://bugs.kde.org/show_bug.cgi?id=476708
+(cherry picked from commit 0fbfbe05028ad18efda786a256a2738d2c231ed4)
+
+Upstream-Status: Backport [https://sourceware.org/git/?p=valgrind.git;a=commit;h=027b649fdb831868e71be01cafdacc49a5f419ab]
+Signed-off-by: Khem Raj <raj.khem@gmail.com>
+---
+ NEWS | 13 +++++++++++++
+ coregrind/m_gdbserver/valgrind-monitor-def.py | 2 +-
+ 2 files changed, 14 insertions(+), 1 deletion(-)
+
+diff --git a/NEWS b/NEWS
+index f11da4be8..ee5b4ff11 100644
+--- a/NEWS
++++ b/NEWS
+@@ -1,3 +1,16 @@
++Branch 3.22
++~~~~~~~~~~~
++
++* ==================== FIXED BUGS ====================
++
++The following bugs have been fixed or resolved on this branch.
++
++476708 valgrind-monitor.py regular expressions should use raw strings
++
++To see details of a given bug, visit
++ https://bugs.kde.org/show_bug.cgi?id=XXXXXX
++where XXXXXX is the bug number as listed above.
++
+ Release 3.22.0 (31 Oct 2023)
+ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+diff --git a/coregrind/m_gdbserver/valgrind-monitor-def.py b/coregrind/m_gdbserver/valgrind-monitor-def.py
+index b4e7b992d..d74b1590c 100644
+--- a/coregrind/m_gdbserver/valgrind-monitor-def.py
++++ b/coregrind/m_gdbserver/valgrind-monitor-def.py
+@@ -211,7 +211,7 @@ class Valgrind_ADDR_LEN_opt(Valgrind_Command):
+ For compatibility reason with the Valgrind gdbserver monitor command,
+ we detect and accept usages such as 0x1234ABCD[10]."""
+ def invoke(self, arg_str : str, from_tty : bool) -> None:
+- if re.fullmatch("^0x[0123456789ABCDEFabcdef]+\[[^\[\]]+\]$", arg_str):
++ if re.fullmatch(r"^0x[0123456789ABCDEFabcdef]+\[[^\[\]]+\]$", arg_str):
+ arg_str = arg_str.replace("[", " ")
+ arg_str = arg_str.replace("]", " ")
+ eval_execute_2(self, arg_str,
+--
+2.44.0
+
new file mode 100644
@@ -0,0 +1,147 @@
+From 1d00e5ce0fb069911c4b525ec38289fb5d9021b0 Mon Sep 17 00:00:00 2001
+From: Paul Floyd <pjfloyd@wanadoo.fr>
+Date: Sat, 18 Nov 2023 08:49:34 +0100
+Subject: [PATCH 2/4] Bug 476548 - valgrind 3.22.0 fails on assertion when
+ loading debuginfo file produced by mold
+
+(cherry picked from commit 9ea4ae66707a4dcc6f4328e11911652e4418c585)
+
+Upstream-Status: Backport [https://sourceware.org/git/?p=valgrind.git;a=commit;h=1d00e5ce0fb069911c4b525ec38289fb5d9021b0]
+Signed-off-by: Khem Raj <raj.khem@gmail.com>
+---
+ NEWS | 2 ++
+ coregrind/m_debuginfo/image.c | 14 +++++++++
+ coregrind/m_debuginfo/priv_image.h | 4 +++
+ coregrind/m_debuginfo/readelf.c | 49 ++++++++++++++++++++++++++++--
+ 4 files changed, 66 insertions(+), 3 deletions(-)
+
+diff --git a/NEWS b/NEWS
+index ee5b4ff11..6cd13429a 100644
+--- a/NEWS
++++ b/NEWS
+@@ -5,6 +5,8 @@ Branch 3.22
+
+ The following bugs have been fixed or resolved on this branch.
+
++476548 valgrind 3.22.0 fails on assertion when loading debuginfo
++ file produced by mold
+ 476708 valgrind-monitor.py regular expressions should use raw strings
+
+ To see details of a given bug, visit
+diff --git a/coregrind/m_debuginfo/image.c b/coregrind/m_debuginfo/image.c
+index 02e509071..445f95555 100644
+--- a/coregrind/m_debuginfo/image.c
++++ b/coregrind/m_debuginfo/image.c
+@@ -1221,6 +1221,20 @@ Int ML_(img_strcmp_c)(DiImage* img, DiOffT off1, const HChar* str2)
+ }
+ }
+
++Int ML_(img_strcmp_n)(DiImage* img, DiOffT off1, const HChar* str2, Word n)
++{
++ ensure_valid(img, off1, 1, "ML_(img_strcmp_c)");
++ while (n) {
++ UChar c1 = get(img, off1);
++ UChar c2 = *(const UChar*)str2;
++ if (c1 < c2) return -1;
++ if (c1 > c2) return 1;
++ if (c1 == 0) return 0;
++ off1++; str2++; --n;
++ }
++ return 0;
++}
++
+ UChar ML_(img_get_UChar)(DiImage* img, DiOffT offset)
+ {
+ ensure_valid(img, offset, 1, "ML_(img_get_UChar)");
+diff --git a/coregrind/m_debuginfo/priv_image.h b/coregrind/m_debuginfo/priv_image.h
+index a49846f14..c91e49f01 100644
+--- a/coregrind/m_debuginfo/priv_image.h
++++ b/coregrind/m_debuginfo/priv_image.h
+@@ -115,6 +115,10 @@ Int ML_(img_strcmp)(DiImage* img, DiOffT off1, DiOffT off2);
+ cast to HChar before comparison. */
+ Int ML_(img_strcmp_c)(DiImage* img, DiOffT off1, const HChar* str2);
+
++/* Do strncmp of a C string in the image vs a normal one. Chars are
++ cast to HChar before comparison. */
++Int ML_(img_strcmp_n)(DiImage* img, DiOffT off1, const HChar* str2, Word n);
++
+ /* Do strlen of a C string in the image. */
+ SizeT ML_(img_strlen)(DiImage* img, DiOffT off);
+
+diff --git a/coregrind/m_debuginfo/readelf.c b/coregrind/m_debuginfo/readelf.c
+index fb64ed976..46f8c8343 100644
+--- a/coregrind/m_debuginfo/readelf.c
++++ b/coregrind/m_debuginfo/readelf.c
+@@ -2501,8 +2501,7 @@ Bool ML_(read_elf_object) ( struct _DebugInfo* di )
+ di->rodata_avma += inrw1->bias;
+ di->rodata_bias = inrw1->bias;
+ di->rodata_debug_bias = inrw1->bias;
+- }
+- else {
++ } else {
+ BAD(".rodata"); /* should not happen? */
+ }
+ di->rodata_present = True;
+@@ -2977,6 +2976,46 @@ Bool ML_(read_elf_object) ( struct _DebugInfo* di )
+ return retval;
+ }
+
++static void find_rodata(Word i, Word shnum, DiImage* dimg, struct _DebugInfo* di, DiOffT shdr_dioff,
++ UWord shdr_dent_szB, DiOffT shdr_strtab_dioff, PtrdiffT rw_dbias)
++{
++ ElfXX_Shdr a_shdr;
++ ElfXX_Shdr a_extra_shdr;
++ ML_(img_get)(&a_shdr, dimg,
++ INDEX_BIS(shdr_dioff, i, shdr_dent_szB),
++ sizeof(a_shdr));
++ if (di->rodata_present &&
++ 0 == ML_(img_strcmp_c)(dimg, shdr_strtab_dioff
++ + a_shdr.sh_name, ".rodata")) {
++ Word sh_size = a_shdr.sh_size;
++ Word j;
++ Word next_addr = a_shdr.sh_addr + a_shdr.sh_size;
++ for (j = i + 1; j < shnum; ++j) {
++ ML_(img_get)(&a_extra_shdr, dimg,
++ INDEX_BIS(shdr_dioff, j, shdr_dent_szB),
++ sizeof(a_shdr));
++ if (0 == ML_(img_strcmp_n)(dimg, shdr_strtab_dioff
++ + a_extra_shdr.sh_name, ".rodata", 7)) {
++ if (a_extra_shdr.sh_addr ==
++ VG_ROUNDUP(next_addr, a_extra_shdr.sh_addralign)) {
++ sh_size = VG_ROUNDUP(sh_size, a_extra_shdr.sh_addralign) + a_extra_shdr.sh_size;
++ }
++ next_addr = a_extra_shdr.sh_addr + a_extra_shdr.sh_size;
++ } else {
++ break;
++ }
++ }
++ vg_assert(di->rodata_size == sh_size);
++ vg_assert(di->rodata_avma + a_shdr.sh_addr + rw_dbias);
++ di->rodata_debug_svma = a_shdr.sh_addr;
++ di->rodata_debug_bias = di->rodata_bias +
++ di->rodata_svma - di->rodata_debug_svma;
++ TRACE_SYMTAB("acquiring .rodata debug svma = %#lx .. %#lx\n",
++ di->rodata_debug_svma,
++ di->rodata_debug_svma + di->rodata_size - 1);
++ TRACE_SYMTAB("acquiring .rodata debug bias = %#lx\n", (UWord)di->rodata_debug_bias);
++ }
++}
+ Bool ML_(read_elf_debug) ( struct _DebugInfo* di )
+ {
+ Word i, j;
+@@ -3391,7 +3430,11 @@ Bool ML_(read_elf_debug) ( struct _DebugInfo* di )
+ FIND(text, rx)
+ FIND(data, rw)
+ FIND(sdata, rw)
+- FIND(rodata, rw)
++ // https://bugs.kde.org/show_bug.cgi?id=476548
++ // special handling for rodata as adjacent
++ // rodata sections may have been merged in ML_(read_elf_object)
++ //FIND(rodata, rw)
++ find_rodata(i, ehdr_dimg.e_shnum, dimg, di, shdr_dioff, shdr_dent_szB, shdr_strtab_dioff, rw_dbias);
+ FIND(bss, rw)
+ FIND(sbss, rw)
+
+--
+2.44.0
+
new file mode 100644
@@ -0,0 +1,221 @@
+From a43e62dddcf51ec6578a90c5988a41e856b44b05 Mon Sep 17 00:00:00 2001
+From: Mark Wielaard <mark@klomp.org>
+Date: Sat, 18 Nov 2023 21:17:02 +0100
+Subject: [PATCH 3/4] Add fchmodat2 syscall on linux
+
+fchmodat2 is a new syscall on linux 6.6. It is a variant of fchmodat
+that takes an extra flags argument.
+
+https://bugs.kde.org/show_bug.cgi?id=477198
+
+(cherry picked from commit 372d09fd9a8d76847c81092ebff71c80fd6c145d)
+
+Upstream-Status: Backport [https://sourceware.org/git/?p=valgrind.git;a=commit;h=a43e62dddcf51ec6578a90c5988a41e856b44b05]
+Signed-off-by: Khem Raj <raj.khem@gmail.com>
+---
+ NEWS | 1 +
+ coregrind/m_syswrap/priv_syswrap-linux.h | 3 +++
+ coregrind/m_syswrap/syswrap-amd64-linux.c | 2 ++
+ coregrind/m_syswrap/syswrap-arm-linux.c | 2 ++
+ coregrind/m_syswrap/syswrap-arm64-linux.c | 2 ++
+ coregrind/m_syswrap/syswrap-linux.c | 11 +++++++++++
+ coregrind/m_syswrap/syswrap-mips32-linux.c | 2 ++
+ coregrind/m_syswrap/syswrap-mips64-linux.c | 1 +
+ coregrind/m_syswrap/syswrap-nanomips-linux.c | 1 +
+ coregrind/m_syswrap/syswrap-ppc32-linux.c | 2 ++
+ coregrind/m_syswrap/syswrap-ppc64-linux.c | 2 ++
+ coregrind/m_syswrap/syswrap-s390x-linux.c | 2 ++
+ coregrind/m_syswrap/syswrap-x86-linux.c | 2 ++
+ include/vki/vki-scnums-shared-linux.h | 2 ++
+ 14 files changed, 35 insertions(+)
+
+diff --git a/NEWS b/NEWS
+index 6cd13429a..da0f8c1aa 100644
+--- a/NEWS
++++ b/NEWS
+@@ -8,6 +8,7 @@ The following bugs have been fixed or resolved on this branch.
+ 476548 valgrind 3.22.0 fails on assertion when loading debuginfo
+ file produced by mold
+ 476708 valgrind-monitor.py regular expressions should use raw strings
++477198 Add fchmodat2 syscall on linux
+
+ To see details of a given bug, visit
+ https://bugs.kde.org/show_bug.cgi?id=XXXXXX
+diff --git a/coregrind/m_syswrap/priv_syswrap-linux.h b/coregrind/m_syswrap/priv_syswrap-linux.h
+index 7c9decf5a..798c456c9 100644
+--- a/coregrind/m_syswrap/priv_syswrap-linux.h
++++ b/coregrind/m_syswrap/priv_syswrap-linux.h
+@@ -331,6 +331,9 @@ DECL_TEMPLATE(linux, sys_openat2);
+ // Linux-specific (new in Linux 5.14)
+ DECL_TEMPLATE(linux, sys_memfd_secret);
+
++// Since Linux 6.6
++DECL_TEMPLATE(linux, sys_fchmodat2);
++
+ /* ---------------------------------------------------------------------
+ Wrappers for sockets and ipc-ery. These are split into standalone
+ procedures because x86-linux hides them inside multiplexors
+diff --git a/coregrind/m_syswrap/syswrap-amd64-linux.c b/coregrind/m_syswrap/syswrap-amd64-linux.c
+index 008600798..fe17d118b 100644
+--- a/coregrind/m_syswrap/syswrap-amd64-linux.c
++++ b/coregrind/m_syswrap/syswrap-amd64-linux.c
+@@ -886,6 +886,8 @@ static SyscallTableEntry syscall_table[] = {
+ LINXY(__NR_epoll_pwait2, sys_epoll_pwait2), // 441
+
+ LINXY(__NR_memfd_secret, sys_memfd_secret), // 447
++
++ LINX_(__NR_fchmodat2, sys_fchmodat2), // 452
+ };
+
+ SyscallTableEntry* ML_(get_linux_syscall_entry) ( UInt sysno )
+diff --git a/coregrind/m_syswrap/syswrap-arm-linux.c b/coregrind/m_syswrap/syswrap-arm-linux.c
+index 9a7a1e0d2..811931d3b 100644
+--- a/coregrind/m_syswrap/syswrap-arm-linux.c
++++ b/coregrind/m_syswrap/syswrap-arm-linux.c
+@@ -1059,6 +1059,8 @@ static SyscallTableEntry syscall_main_table[] = {
+ LINX_(__NR_faccessat2, sys_faccessat2), // 439
+
+ LINXY(__NR_epoll_pwait2, sys_epoll_pwait2), // 441
++
++ LINX_(__NR_fchmodat2, sys_fchmodat2), // 452
+ };
+
+
+diff --git a/coregrind/m_syswrap/syswrap-arm64-linux.c b/coregrind/m_syswrap/syswrap-arm64-linux.c
+index 6af7bab83..3307bc2ca 100644
+--- a/coregrind/m_syswrap/syswrap-arm64-linux.c
++++ b/coregrind/m_syswrap/syswrap-arm64-linux.c
+@@ -840,6 +840,8 @@ static SyscallTableEntry syscall_main_table[] = {
+ LINXY(__NR_epoll_pwait2, sys_epoll_pwait2), // 441
+
+ LINXY(__NR_memfd_secret, sys_memfd_secret), // 447
++
++ LINX_(__NR_fchmodat2, sys_fchmodat2), // 452
+ };
+
+
+diff --git a/coregrind/m_syswrap/syswrap-linux.c b/coregrind/m_syswrap/syswrap-linux.c
+index d571fc327..efa47f2e6 100644
+--- a/coregrind/m_syswrap/syswrap-linux.c
++++ b/coregrind/m_syswrap/syswrap-linux.c
+@@ -6059,6 +6059,17 @@ PRE(sys_fchmodat)
+ PRE_MEM_RASCIIZ( "fchmodat(path)", ARG2 );
+ }
+
++PRE(sys_fchmodat2)
++{
++ PRINT("sys_fchmodat2 ( %ld, %#" FMT_REGWORD "x(%s), %" FMT_REGWORD "u, %"
++ FMT_REGWORD "u )",
++ SARG1, ARG2, (HChar*)(Addr)ARG2, ARG3, ARG4);
++ PRE_REG_READ4(long, "fchmodat2",
++ int, dfd, const char *, path, vki_mode_t, mode,
++ unsigned int, flags);
++ PRE_MEM_RASCIIZ( "fchmodat2(pathname)", ARG2 );
++}
++
+ PRE(sys_faccessat)
+ {
+ PRINT("sys_faccessat ( %ld, %#" FMT_REGWORD "x(%s), %ld )",
+diff --git a/coregrind/m_syswrap/syswrap-mips32-linux.c b/coregrind/m_syswrap/syswrap-mips32-linux.c
+index 6268a00dd..74a1f6eac 100644
+--- a/coregrind/m_syswrap/syswrap-mips32-linux.c
++++ b/coregrind/m_syswrap/syswrap-mips32-linux.c
+@@ -1143,6 +1143,8 @@ static SyscallTableEntry syscall_main_table[] = {
+ LINX_ (__NR_faccessat2, sys_faccessat2), // 439
+
+ LINXY(__NR_epoll_pwait2, sys_epoll_pwait2), // 441
++
++ LINX_(__NR_fchmodat2, sys_fchmodat2), // 452
+ };
+
+ SyscallTableEntry* ML_(get_linux_syscall_entry) (UInt sysno)
+diff --git a/coregrind/m_syswrap/syswrap-mips64-linux.c b/coregrind/m_syswrap/syswrap-mips64-linux.c
+index 6cdf25893..4e8508b7a 100644
+--- a/coregrind/m_syswrap/syswrap-mips64-linux.c
++++ b/coregrind/m_syswrap/syswrap-mips64-linux.c
+@@ -820,6 +820,7 @@ static SyscallTableEntry syscall_main_table[] = {
+ LINXY (__NR_close_range, sys_close_range),
+ LINX_ (__NR_faccessat2, sys_faccessat2),
+ LINXY(__NR_epoll_pwait2, sys_epoll_pwait2),
++ LINX_ (__NR_fchmodat2, sys_fchmodat2),
+ };
+
+ SyscallTableEntry * ML_(get_linux_syscall_entry) ( UInt sysno )
+diff --git a/coregrind/m_syswrap/syswrap-nanomips-linux.c b/coregrind/m_syswrap/syswrap-nanomips-linux.c
+index d724cde74..7859900c1 100644
+--- a/coregrind/m_syswrap/syswrap-nanomips-linux.c
++++ b/coregrind/m_syswrap/syswrap-nanomips-linux.c
+@@ -829,6 +829,7 @@ static SyscallTableEntry syscall_main_table[] = {
+ LINXY (__NR_close_range, sys_close_range),
+ LINX_ (__NR_faccessat2, sys_faccessat2),
+ LINXY (__NR_epoll_pwait2, sys_epoll_pwait2),
++ LINX_ (__NR_fchmodat2, sys_fchmodat2),
+ };
+
+ SyscallTableEntry* ML_(get_linux_syscall_entry) (UInt sysno)
+diff --git a/coregrind/m_syswrap/syswrap-ppc32-linux.c b/coregrind/m_syswrap/syswrap-ppc32-linux.c
+index c0cfef235..1e19116ee 100644
+--- a/coregrind/m_syswrap/syswrap-ppc32-linux.c
++++ b/coregrind/m_syswrap/syswrap-ppc32-linux.c
+@@ -1063,6 +1063,8 @@ static SyscallTableEntry syscall_table[] = {
+ LINX_(__NR_faccessat2, sys_faccessat2), // 439
+
+ LINXY (__NR_epoll_pwait2, sys_epoll_pwait2), // 441
++
++ LINX_ (__NR_fchmodat2, sys_fchmodat2), // 452
+ };
+
+ SyscallTableEntry* ML_(get_linux_syscall_entry) ( UInt sysno )
+diff --git a/coregrind/m_syswrap/syswrap-ppc64-linux.c b/coregrind/m_syswrap/syswrap-ppc64-linux.c
+index f5976f30c..1097212a4 100644
+--- a/coregrind/m_syswrap/syswrap-ppc64-linux.c
++++ b/coregrind/m_syswrap/syswrap-ppc64-linux.c
+@@ -1032,6 +1032,8 @@ static SyscallTableEntry syscall_table[] = {
+ LINX_(__NR_faccessat2, sys_faccessat2), // 439
+
+ LINXY (__NR_epoll_pwait2, sys_epoll_pwait2), // 441
++
++ LINX_ (__NR_fchmodat2, sys_fchmodat2), // 452
+ };
+
+ SyscallTableEntry* ML_(get_linux_syscall_entry) ( UInt sysno )
+diff --git a/coregrind/m_syswrap/syswrap-s390x-linux.c b/coregrind/m_syswrap/syswrap-s390x-linux.c
+index afba154e7..3588672c7 100644
+--- a/coregrind/m_syswrap/syswrap-s390x-linux.c
++++ b/coregrind/m_syswrap/syswrap-s390x-linux.c
+@@ -873,6 +873,8 @@ static SyscallTableEntry syscall_table[] = {
+ LINX_(__NR_faccessat2, sys_faccessat2), // 439
+
+ LINXY(__NR_epoll_pwait2, sys_epoll_pwait2), // 441
++
++ LINX_ (__NR_fchmodat2, sys_fchmodat2), // 452
+ };
+
+ SyscallTableEntry* ML_(get_linux_syscall_entry) ( UInt sysno )
+diff --git a/coregrind/m_syswrap/syswrap-x86-linux.c b/coregrind/m_syswrap/syswrap-x86-linux.c
+index da4fd8fa2..58badc6b0 100644
+--- a/coregrind/m_syswrap/syswrap-x86-linux.c
++++ b/coregrind/m_syswrap/syswrap-x86-linux.c
+@@ -1658,6 +1658,8 @@ static SyscallTableEntry syscall_table[] = {
+ LINXY(__NR_epoll_pwait2, sys_epoll_pwait2), // 441
+
+ LINXY(__NR_memfd_secret, sys_memfd_secret), // 447
++
++ LINX_(__NR_fchmodat2, sys_fchmodat2), // 452
+ };
+
+ SyscallTableEntry* ML_(get_linux_syscall_entry) ( UInt sysno )
+diff --git a/include/vki/vki-scnums-shared-linux.h b/include/vki/vki-scnums-shared-linux.h
+index 542382b53..a4cd87149 100644
+--- a/include/vki/vki-scnums-shared-linux.h
++++ b/include/vki/vki-scnums-shared-linux.h
+@@ -50,4 +50,6 @@
+
+ #define __NR_memfd_secret 447
+
++#define __NR_fchmodat2 452
++
+ #endif
+--
+2.44.0
+
new file mode 100644
@@ -0,0 +1,137 @@
+From 41ff9aa49f6c54c66d0e6b37f265fd9cb0176057 Mon Sep 17 00:00:00 2001
+From: Paul Floyd <pjfloyd@wanadoo.fr>
+Date: Sun, 17 Dec 2023 14:18:51 +0100
+Subject: [PATCH 4/4] Bug 478624 - Valgrind incompatibility with binutils-2.42
+ on x86 with new nop patterns (unhandled instruction bytes: 0x2E 0x8D 0xB4
+ 0x26)
+
+It was a bit of a struggle to get the testcase to build
+with both clang and gcc (oddly enough gcc was more difficult) so
+I just resorted to using .byte arrays.
+
+(cherry picked from commit d35005cef8ad8207542738812705ceabf137d7e0)
+
+Upstream-Status: Backport [https://sourceware.org/git/?p=valgrind.git;a=commit;h=41ff9aa49f6c54c66d0e6b37f265fd9cb0176057]
+Signed-off-by: Khem Raj <raj.khem@gmail.com>
+---
+ .gitignore | 1 +
+ NEWS | 2 ++
+ VEX/priv/guest_x86_toIR.c | 22 +++++++++++++-
+ none/tests/x86/Makefile.am | 2 ++
+ none/tests/x86/gnu_binutils_nop.c | 34 ++++++++++++++++++++++
+ none/tests/x86/gnu_binutils_nop.stderr.exp | 0
+ none/tests/x86/gnu_binutils_nop.vgtest | 2 ++
+ 7 files changed, 62 insertions(+), 1 deletion(-)
+ create mode 100644 none/tests/x86/gnu_binutils_nop.c
+ create mode 100644 none/tests/x86/gnu_binutils_nop.stderr.exp
+ create mode 100644 none/tests/x86/gnu_binutils_nop.vgtest
+
+--- a/NEWS
++++ b/NEWS
+@@ -9,6 +9,8 @@ The following bugs have been fixed or re
+ file produced by mold
+ 476708 valgrind-monitor.py regular expressions should use raw strings
+ 477198 Add fchmodat2 syscall on linux
++478624 Valgrind incompatibility with binutils-2.42 on x86 with new nop patterns
++ (unhandled instruction bytes: 0x2E 0x8D 0xB4 0x26)
+
+ To see details of a given bug, visit
+ https://bugs.kde.org/show_bug.cgi?id=XXXXXX
+--- a/VEX/priv/guest_x86_toIR.c
++++ b/VEX/priv/guest_x86_toIR.c
+@@ -8198,7 +8198,7 @@ DisResult disInstr_X86_WRK (
+ delta += 5;
+ goto decode_success;
+ }
+- /* Don't barf on recent binutils padding,
++ /* Don't barf on recent (2010) binutils padding,
+ all variants of which are: nopw %cs:0x0(%eax,%eax,1)
+ 66 2e 0f 1f 84 00 00 00 00 00
+ 66 66 2e 0f 1f 84 00 00 00 00 00
+@@ -8222,6 +8222,26 @@ DisResult disInstr_X86_WRK (
+ goto decode_success;
+ }
+ }
++
++ /* bug478624 GNU binutils uses a leal of esi into itself with
++ a zero offset and CS prefix as an 8 byte no-op (Dec 2023).
++ Since the CS prefix is hardly ever used we don't do much
++ to decode it, just a few cases for conditional branches.
++ So add handling here with other pseudo-no-ops.
++ */
++ if (code[0] == 0x2E && code[1] == 0x8D) {
++ if (code[2] == 0x74 && code[3] == 0x26 && code[4] == 0x00) {
++ DIP("leal %%cs:0(%%esi,%%eiz,1),%%esi\n");
++ delta += 5;
++ goto decode_success;
++ }
++ if (code[2] == 0xB4 && code[3] == 0x26 && code[4] == 0x00
++ && code[5] == 0x00 && code[6] == 0x00 && code[7] == 0x00) {
++ DIP("leal %%cs:0(%%esi,%%eiz,1),%%esi\n");
++ delta += 8;
++ goto decode_success;
++ }
++ }
+
+ // Intel CET requires the following opcodes to be treated as NOPs
+ // with any prefix and ModRM, SIB and disp combination:
+--- a/none/tests/x86/Makefile.am
++++ b/none/tests/x86/Makefile.am
+@@ -52,6 +52,7 @@ EXTRA_DIST = \
+ fxtract.stdout.exp fxtract.stderr.exp fxtract.vgtest \
+ fxtract.stdout.exp-older-glibc \
+ getseg.stdout.exp getseg.stderr.exp getseg.vgtest \
++ gnu_binutils_nop.stderr.exp gnu_binutils_nop.vgtest \
+ incdec_alt.stdout.exp incdec_alt.stderr.exp incdec_alt.vgtest \
+ int.stderr.exp int.stdout.exp int.disabled \
+ $(addsuffix .stderr.exp,$(INSN_TESTS)) \
+@@ -100,6 +101,7 @@ check_PROGRAMS = \
+ fpu_lazy_eflags \
+ fxtract \
+ getseg \
++ gnu_binutils_nop \
+ incdec_alt \
+ $(INSN_TESTS) \
+ int \
+--- /dev/null
++++ b/none/tests/x86/gnu_binutils_nop.c
+@@ -0,0 +1,34 @@
++int main(void)
++{
++ // GNU binutils uses various opcodes as alternatives for nop
++ // the idea is that it is faster to execute one large opcode
++ // with no side-effects than multiple repetitions of the
++ // single byte 'nop'. This gives more choice when code
++ // needs to be padded.
++
++ // the following is based on
++ // https://sourceware.org/cgit/binutils-gdb/tree/gas/config/tc-i386.c#n1256
++
++ // one byte
++ __asm__ __volatile__("nop");
++ // two bytes
++ __asm__ __volatile__("xchg %ax,%ax");
++ // three bytes
++ //__asm__ __volatile__("leal 0(%esi),%esi");
++ __asm__ __volatile__(".byte 0x8d,0x76,0x00");
++ // four bytes
++ //__asm__ __volatile__("leal 0(%esi,%eiz),%esi");
++ __asm__ __volatile__(".byte 0x8d,0x74,0x26,0x00");
++ // five bytes
++ //__asm__ __volatile__("leal %cs:0(%esi,%eiz),%esi");
++ __asm__ __volatile__(".byte 0x2e,0x8d,0x74,0x26,0x00");
++ // six bytes
++ //__asm__ __volatile__("leal 0L(%esi),%esi");
++ __asm__ __volatile__(".byte 0x8d,0xb6,0x00,0x00,0x00,0x00");
++ // seven bytes
++ //__asm__ __volatile__("leal 0L(%esi,%eiz),%esi");
++ __asm__ __volatile__(".byte 0x8d,0xb4,0x26,0x00,0x00,0x00,0x00");
++ // eight bytes
++ //__asm__ __volatile__("leal %cs:0L(%esi,%eiz),%esi");
++ __asm__ __volatile__(".byte 0x2e,0x8d,0xb4,0x26,0x00,0x00,0x00,0x00");
++}
+--- /dev/null
++++ b/none/tests/x86/gnu_binutils_nop.vgtest
+@@ -0,0 +1,2 @@
++prog: gnu_binutils_nop
++vgopts: -q
@@ -33,6 +33,10 @@ SRC_URI = "https://sourceware.org/pub/valgrind/valgrind-${PV}.tar.bz2 \
file://0001-none-tests-fdleak_cmsg.stderr.exp-adjust-tmp-paths.patch \
file://0001-memcheck-tests-Fix-timerfd-syscall-test.patch \
file://0001-docs-Disable-manual-validation.patch \
+ file://0001-valgrind-monitor.py-regular-expressions-should-use-r.patch \
+ file://0002-Bug-476548-valgrind-3.22.0-fails-on-assertion-when-l.patch \
+ file://0003-Add-fchmodat2-syscall-on-linux.patch \
+ file://0004-Bug-478624-Valgrind-incompatibility-with-binutils-2..patch \
"
SRC_URI[sha256sum] = "c811db5add2c5f729944caf47c4e7a65dcaabb9461e472b578765dd7bf6d2d4c"
UPSTREAM_CHECK_REGEX = "valgrind-(?P<pver>\d+(\.\d+)+)\.tar"
These fixes are helping some ptests on musl and 6.6 kernel Signed-off-by: Khem Raj <raj.khem@gmail.com> --- ....py-regular-expressions-should-use-r.patch | 64 +++++ ...ind-3.22.0-fails-on-assertion-when-l.patch | 147 ++++++++++++ .../0003-Add-fchmodat2-syscall-on-linux.patch | 221 ++++++++++++++++++ ...ind-incompatibility-with-binutils-2..patch | 137 +++++++++++ .../valgrind/valgrind_3.22.0.bb | 4 + 5 files changed, 573 insertions(+) create mode 100644 meta/recipes-devtools/valgrind/valgrind/0001-valgrind-monitor.py-regular-expressions-should-use-r.patch create mode 100644 meta/recipes-devtools/valgrind/valgrind/0002-Bug-476548-valgrind-3.22.0-fails-on-assertion-when-l.patch create mode 100644 meta/recipes-devtools/valgrind/valgrind/0003-Add-fchmodat2-syscall-on-linux.patch create mode 100644 meta/recipes-devtools/valgrind/valgrind/0004-Bug-478624-Valgrind-incompatibility-with-binutils-2..patch