[PATCH RFC 09/11] configure: Use -fno-addrsig if possible

2023-02-06 Thread Ilya Leoshkevich via Elfutils-devel
By default, clang produces .llvm_addrsig sections [1]. The GNU toolchain does not know how to handle them yet [2], so just ask clang not to generate them for the time being. [1] https://llvm.org/docs/Extensions.html#sht-llvm-addrsig-section-address-significance-table [2] https://gcc.gnu.org/bugzi

[PATCH RFC 08/11] x86_64_return_value_location: Support lvalue and rvalue references

2023-02-06 Thread Ilya Leoshkevich via Elfutils-devel
On the low level, they are the same as pointers. Signed-off-by: Ilya Leoshkevich --- backends/x86_64_retval.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/backends/x86_64_retval.c b/backends/x86_64_retval.c index f9114cb1..e668eacc 100644 --- a/backends/x86_64_retval.c +++ b/backends/x8

[PATCH RFC 04/11] readelf: Fix set but not used parameter

2023-02-06 Thread Ilya Leoshkevich via Elfutils-devel
clang complains: readelf.c:12205:72: error: parameter 'desc' set but not used [-Werror,-Wunused-but-set-parameter] handle_bit_registers (const Ebl_Register_Location *regloc, const void *desc, ^ Apparently handle_b

[PATCH RFC 11/11] configure: Add --enable-sanitize-memory

2023-02-06 Thread Ilya Leoshkevich via Elfutils-devel
Add support for clang Memory Sanitizer [1], which detects the usage of uninitialized values. While elfutils itself is already checked with valgrind, checking code that depends on elfutils requires elfutils to be built with MSan. MSan is not linked into shared libraries, and is linked into executab

[PATCH RFC 03/11] printversion: Fix unused variable

2023-02-06 Thread Ilya Leoshkevich via Elfutils-devel
clang complains: debuginfod.cxx:354:1: error: unused variable 'apba__' [-Werror,-Wunused-const-variable] ARGP_PROGRAM_BUG_ADDRESS_DEF = PACKAGE_BUGREPORT; ^ ../lib/printversion.h:47:21: note: expanded from macro 'ARGP_PROGRAM_BUG_ADDRESS_DEF' const char *const apba__ __asm

[PATCH RFC 10/11] configure: Add --disable-demangle

2023-02-06 Thread Ilya Leoshkevich via Elfutils-devel
__cxa_demangle is normally implemented in the C++ runtime library, instrumenting which for MSan is a hassle. Add a knob for disabling it. Signed-off-by: Ilya Leoshkevich --- configure.ac | 8 +++- 1 file changed, 7 insertions(+), 1 deletion(-) diff --git a/configure.ac b/configure.ac index

[PATCH RFC 01/11] libdwfl: Fix debuginfod_client redefinition

2023-02-06 Thread Ilya Leoshkevich via Elfutils-devel
clang complains: In file included from debuginfod-client.c:38: ./../debuginfod/debuginfod.h:47:34: error: redefinition of typedef 'debuginfod_client' is a C11 feature [-Werror,-Wtypedef-redefinition] typedef struct debuginfod_client debuginfod_client;

[PATCH RFC 07/11] addr2line: Do not test demangling in run-addr2line-i-test.sh

2023-02-06 Thread Ilya Leoshkevich via Elfutils-devel
There is run-addr2line-i-demangle-test.sh for that. Signed-off-by: Ilya Leoshkevich --- tests/run-addr2line-i-test.sh | 14 +++--- 1 file changed, 7 insertions(+), 7 deletions(-) diff --git a/tests/run-addr2line-i-test.sh b/tests/run-addr2line-i-test.sh index 4f63e487..e7b89083 100755 -

[PATCH RFC 06/11] Initialize reglocs for VMCOREINFO

2023-02-06 Thread Ilya Leoshkevich via Elfutils-devel
MSan complains: Uninitialized value was created by an allocation of 'reglocs' in the stack frame #0 0x562d35c686f0 in handle_core_note elfutils/src/readelf.c:12674:3 #const Ebl_Register_Location *reglocs; ==1006199==WARNING: MemorySanitizer: use-of-uninitialized-value

[PATCH RFC 05/11] readelf: Fix set but not used variable

2023-02-06 Thread Ilya Leoshkevich via Elfutils-devel
clang complains: readelf.c:10250:10: error: variable 'nculist' set but not used [-Werror,-Wunused-but-set-variable] size_t nculist = 0; ^ Fix by deleting it. Signed-off-by: Ilya Leoshkevich --- src/readelf.c | 2 -- 1 file changed, 2 deletions(-) diff --git a/src/reade

[PATCH RFC 02/11] libasm: Fix xdefault_pattern initialization

2023-02-06 Thread Ilya Leoshkevich via Elfutils-devel
clang complains: asm_newscn.c:48:22: error: field 'pattern' with variable sized type 'struct FillPattern' not at the end of a struct or class is a GNU extension [-Werror,-Wgnu-variable-sized-type-not-at-end] struct FillPattern pattern; ^ Fix by using a union i

[PATCH RFC 00/11] Add Memory Sanitizer support

2023-02-06 Thread Ilya Leoshkevich via Elfutils-devel
Hi, This series adds minimalistic support for Memory Sanitizer (MSan) [1]. MSan is compiler instrumentation for detecting accesses to uninitialized memory. The motivation behind this is to be able to link elfutils into projects instrumented with MSan, since it essentially requires all the code ru

[Bug libdw/30047] libdw unable to handle DW_TAG_unspecified_type

2023-02-06 Thread mliska at suse dot cz via Elfutils-devel
https://sourceware.org/bugzilla/show_bug.cgi?id=30047 --- Comment #5 from Martin Liska --- May I please ping this issue as one needs it with the latest binutils release (2.40). -- You are receiving this mail because: You are on the CC list for the bug.

[Bug libdw/30085] New: Negative strides in dwarf_aggregate_size

2023-02-06 Thread thaines.astro at gmail dot com via Elfutils-devel
https://sourceware.org/bugzilla/show_bug.cgi?id=30085 Bug ID: 30085 Summary: Negative strides in dwarf_aggregate_size Product: elfutils Version: unspecified Status: UNCONFIRMED Severity: enhancement Priority: P2

[Bug libdw/30077] Duplicate definition of typedef struct debuginfod_client in libdwfl

2023-02-06 Thread mark at klomp dot org via Elfutils-devel
https://sourceware.org/bugzilla/show_bug.cgi?id=30077 Mark Wielaard changed: What|Removed |Added Status|NEW |RESOLVED Resolution|---