24 Commits

Author SHA256 Message Date
19ef649a3d Accepting request 1283993 from devel:tools:compiler
- Update to version 2.40.1
  * We've eliminated unnecessary memory zero-initialization for the
    --compress-debug-sections option to make debug section compression faster. With
    this change, mold sometimes runs faster with --compress-debug-sections than
    without it due to reduced file I/O. (d59c559)
  * Previously, mold used an exponential pattern-matching algorithm for glob
    matching, which could significantly slow down version scripts or dynamic list
    processing for certain glob patterns. Now, we use a linear-time algorithm that
    is guaranteed to run efficiently for any glob pattern. (dac20fa)
  * mold now reports an error if the output .dynsym refers to a section whose
    section index is ≥65280, since such a dynamic symbol is not representable in
    ELF. Previously, mold crashed with an assertion failure. (0d8334e)

OBS-URL: https://build.opensuse.org/request/show/1283993
OBS-URL: https://build.opensuse.org/package/show/openSUSE:Factory/mold?expand=0&rev=60
2025-06-10 07:06:34 +00:00
Martin Liška
4d0640683b - Update to version 2.40.1
* We've eliminated unnecessary memory zero-initialization for the
    --compress-debug-sections option to make debug section compression faster. With
    this change, mold sometimes runs faster with --compress-debug-sections than
    without it due to reduced file I/O. (d59c559)
  * Previously, mold used an exponential pattern-matching algorithm for glob
    matching, which could significantly slow down version scripts or dynamic list
    processing for certain glob patterns. Now, we use a linear-time algorithm that
    is guaranteed to run efficiently for any glob pattern. (dac20fa)
  * mold now reports an error if the output .dynsym refers to a section whose
    section index is ≥65280, since such a dynamic symbol is not representable in
    ELF. Previously, mold crashed with an assertion failure. (0d8334e)

OBS-URL: https://build.opensuse.org/package/show/devel:tools:compiler/mold?expand=0&rev=154
2025-06-09 07:00:40 +00:00
fa5af1a761 Accepting request 1279984 from devel:tools:compiler
- Update to version 2.40.0
  * mold now lays out DWARF32 debug info before DWARF64 in output debug sections to
    mitigate relocation overflow issues with DWARF32 when a debug info section
    exceeds 4 GiB. This should help people who are building extremely large
    executables in debug mode. (19a1bc6, 159ce3b)
  * Here are the details: By default, GCC and Clang emit DWARF32 even for 64-bit
    code. That is, the debug info typically uses 32 bit offsets to refer to
    locations in other debug info sections while it uses 64 bits to represent
    addresses. This imposes a limitation on the largest offset DWARF32 debug info
    can refer to, which is 4 GiB. If the output debug section exceeds that size, the
    linker may report a relocation overflow error. You can instruct the compilers to
    emit DWARF64, which uses 64 bits for inter-debug info references, if you are
    building an extremely large executable. So, the proper fix for the relocation
    overflow issue is to build all object files with -gdwarf64. However, rebuilding
    all static libraries with the new compiler flag is not always feasible for
    various reasons. This new feature mitigates the issue by placing DWARF32 at the
    beginning of output debug info sections, followed by DWARF64. By doing so,
    relocation overflow can be prevented as long as the total size of DWARF32
    remains under 4 GiB, allowing users to continue using object files compiled
    without -gdwarf64 for very large executables.
  * Note that mold only sorts debug section contents when their size exceeds 4 GiB.
    Therefore, for most outputs, this mitigation doesn't change the result at all.
  * Fixed a regression introduced in 2.38.0 in which a thread-local variable with an
    unusually large alignment might not have been aligned properly. That caused
    mislinking of systemd when LTO was enabled (#1463). (53c1758)
  * Fixed a regression introduced in 2.38.0 in which --as-needed was ignored when
    creating an executable under a rare condition. (af36625)
  * Fixed an assertion failure on some targets that is triggered when an weak
    undefined symbol in an executable is promoted to a dynamic symbol with the -z
    dynamic-undefined-weak option. (0fdffad)

OBS-URL: https://build.opensuse.org/request/show/1279984
OBS-URL: https://build.opensuse.org/package/show/openSUSE:Factory/mold?expand=0&rev=59
2025-05-26 16:38:47 +00:00
Martin Liška
946164314c - Update to version 2.40.0
* mold now lays out DWARF32 debug info before DWARF64 in output debug sections to
    mitigate relocation overflow issues with DWARF32 when a debug info section
    exceeds 4 GiB. This should help people who are building extremely large
    executables in debug mode. (19a1bc6, 159ce3b)
  * Here are the details: By default, GCC and Clang emit DWARF32 even for 64-bit
    code. That is, the debug info typically uses 32 bit offsets to refer to
    locations in other debug info sections while it uses 64 bits to represent
    addresses. This imposes a limitation on the largest offset DWARF32 debug info
    can refer to, which is 4 GiB. If the output debug section exceeds that size, the
    linker may report a relocation overflow error. You can instruct the compilers to
    emit DWARF64, which uses 64 bits for inter-debug info references, if you are
    building an extremely large executable. So, the proper fix for the relocation
    overflow issue is to build all object files with -gdwarf64. However, rebuilding
    all static libraries with the new compiler flag is not always feasible for
    various reasons. This new feature mitigates the issue by placing DWARF32 at the
    beginning of output debug info sections, followed by DWARF64. By doing so,
    relocation overflow can be prevented as long as the total size of DWARF32
    remains under 4 GiB, allowing users to continue using object files compiled
    without -gdwarf64 for very large executables.
  * Note that mold only sorts debug section contents when their size exceeds 4 GiB.
    Therefore, for most outputs, this mitigation doesn't change the result at all.
  * Fixed a regression introduced in 2.38.0 in which a thread-local variable with an
    unusually large alignment might not have been aligned properly. That caused
    mislinking of systemd when LTO was enabled (#1463). (53c1758)
  * Fixed a regression introduced in 2.38.0 in which --as-needed was ignored when
    creating an executable under a rare condition. (af36625)
  * Fixed an assertion failure on some targets that is triggered when an weak
    undefined symbol in an executable is promoted to a dynamic symbol with the -z
    dynamic-undefined-weak option. (0fdffad)

OBS-URL: https://build.opensuse.org/package/show/devel:tools:compiler/mold?expand=0&rev=152
2025-05-26 06:56:38 +00:00
c7b34707c0 Accepting request 1276942 from devel:tools:compiler
- Update to version 2.39.1
  * Fixed a potential use-after-free issue that occurred when doing LTO (link-time
    optimization) with LLVM. (d0dffd5)

OBS-URL: https://build.opensuse.org/request/show/1276942
OBS-URL: https://build.opensuse.org/package/show/openSUSE:Factory/mold?expand=0&rev=58
2025-05-13 18:05:43 +00:00
Martin Liška
3a237dd053 - Update to version 2.39.1
* Fixed a potential use-after-free issue that occurred when doing LTO (link-time
    optimization) with LLVM. (d0dffd5)

OBS-URL: https://build.opensuse.org/package/show/devel:tools:compiler/mold?expand=0&rev=150
2025-05-12 16:56:09 +00:00
eee056ddda Accepting request 1274689 from devel:tools:compiler
- Update to version 2.39.0
  * [ARM32] Support for 32-bit big-endian ARM has been added. Although running ARM32
    in big-endian mode is very rare, the processor does technically support both
    little- and big-endian modes, and we now support both.
  * There are two variants of big-endian mode for ARM32: BE32 and BE8. BE32 is now
    obsolete and uses big-endian format for both instructions and data. In BE8,
    instructions are always in little-endian (i.e., the same as little-endian
    ARM32), while only the data is in big-endian. mold supports only BE8 output.
    (157b16a)
  * Fixed a spurious --no-allow-shlib-undefined error. (3274bcb)
  * [ARM][PPC] Fixed a regression introduced in 2.38.0 that mold could crash when
    linking a large program. (fded2d8)
  * Previously, --default-symver didn't set versions to symbols if the symbols were
    marked as global: in a version script. Now, --default-symver correctly version
    all symbols with the soname of the output file. (8bae43b)
  * [RISC-V] Fixed an issue where mold reported an error on R_RISCV_32 when the
    target was 64-bit RISC-V. (564757a)
  * [RISC-V] Fixed an issue where a call to an weak undefined symbol within the same
    shared library was mistakenly turned into an infinite loop. Now, such calls are
    promoted to a function call through the PLT entry. (e08e7f6)
  * Fixed an issue that mold falls into an infinite loop in a rare occasion when
    computing an address of the program header. (83dd353)

OBS-URL: https://build.opensuse.org/request/show/1274689
OBS-URL: https://build.opensuse.org/package/show/openSUSE:Factory/mold?expand=0&rev=57
2025-05-06 14:41:08 +00:00
Martin Liška
e812149a5f - Update to version 2.39.0
* [ARM32] Support for 32-bit big-endian ARM has been added. Although running ARM32
    in big-endian mode is very rare, the processor does technically support both
    little- and big-endian modes, and we now support both.
  * There are two variants of big-endian mode for ARM32: BE32 and BE8. BE32 is now
    obsolete and uses big-endian format for both instructions and data. In BE8,
    instructions are always in little-endian (i.e., the same as little-endian
    ARM32), while only the data is in big-endian. mold supports only BE8 output.
    (157b16a)
  * Fixed a spurious --no-allow-shlib-undefined error. (3274bcb)
  * [ARM][PPC] Fixed a regression introduced in 2.38.0 that mold could crash when
    linking a large program. (fded2d8)
  * Previously, --default-symver didn't set versions to symbols if the symbols were
    marked as global: in a version script. Now, --default-symver correctly version
    all symbols with the soname of the output file. (8bae43b)
  * [RISC-V] Fixed an issue where mold reported an error on R_RISCV_32 when the
    target was 64-bit RISC-V. (564757a)
  * [RISC-V] Fixed an issue where a call to an weak undefined symbol within the same
    shared library was mistakenly turned into an infinite loop. Now, such calls are
    promoted to a function call through the PLT entry. (e08e7f6)
  * Fixed an issue that mold falls into an infinite loop in a rare occasion when
    computing an address of the program header. (83dd353)

OBS-URL: https://build.opensuse.org/package/show/devel:tools:compiler/mold?expand=0&rev=148
2025-05-05 19:05:52 +00:00
4a27c6ed0f Accepting request 1273270 from devel:tools:compiler
- Update to version 2.38.1
  * Fixed a bug where mold could fail with a spurious mutually-recursive .so
    detected error message when building an executable. This happened if there was a
    circular dependency between shared libraries given to the linker (i.e.,
    libfoo.so depends on libbar.so and vice versa). Even though libraries with
    circular dependencies are rare and a strong indication of a bug in the original
    program's library layering, the dynamic loader can load such libraries, and the
    linker shouldn't reject them. (21e20e0)

OBS-URL: https://build.opensuse.org/request/show/1273270
OBS-URL: https://build.opensuse.org/package/show/openSUSE:Factory/mold?expand=0&rev=56
2025-04-29 14:41:29 +00:00
Martin Liška
a859381b94 - Update to version 2.38.1
* Fixed a bug where mold could fail with a spurious mutually-recursive .so
    detected error message when building an executable. This happened if there was a
    circular dependency between shared libraries given to the linker (i.e.,
    libfoo.so depends on libbar.so and vice versa). Even though libraries with
    circular dependencies are rare and a strong indication of a bug in the original
    program's library layering, the dynamic loader can load such libraries, and the
    linker shouldn't reject them. (21e20e0)

OBS-URL: https://build.opensuse.org/package/show/devel:tools:compiler/mold?expand=0&rev=146
2025-04-29 04:24:21 +00:00
cfe3ddc321 Accepting request 1272922 from devel:tools:compiler
- Update to version 2.38.0
  * The --audit and --depaudit options are now supported for compatibility with GNU
    ld. (af396ad)
  * Recent versions of LLVM support an alternative, experimental relocation table
    format called CREL. mold can now read object files containing CREL relocation
    tables. (c43a859)
  * [ARM32][ARM64][PPC32][PPC64] The branch instruction ranges of RISC processors
    are generally insufficient to support the medium code model because their
    instructions are typically 32 bits long, which makes it impossible to embed
    large immediate offsets. For example, ARM64’s branch instruction can target only
    PC ± 128 MiB. If the branch target is farther than that, the linker must emit a
    small piece of code—often called a thunk or branch island—to extend the branch
    range.
  * Previously, mold created unnecessary range extension thunks for symbols that had
    PLT entries. Now, mold does not create thunks unless they are truly needed.
    (a43f395)
  * Previously, --no-allow-shlib-undefined could cause a segmentation fault due to
    an out-of-bounds array access. This has been fixed. (82affb9)
  * --no-allow-shlib-undefined is enabled by default if the output type is an
    executable (as opposed to a shared library) for compatibility with other
    linkers. (43810df)
  * mold could report a spurious "duplicate symbol" error when performing LTO. This
    bug has been fixed. (5d24db5)
  * In rare cases involving symbol versioning, mold mistakenly filtered out
    necessary libraries specified with --as-needed. This bug has been fixed.
    (a97a628)
  * In rare cases involving symbol versioning, mold reported a spurious "undefined
    symbol" error. This bug has been fixed. (2d6061a)
  * If the same symbol was defined with and without the default version (e.g., if an
    object file defined both foo and foo@@VERSION), mold mistakenly hid both symbols

OBS-URL: https://build.opensuse.org/request/show/1272922
OBS-URL: https://build.opensuse.org/package/show/openSUSE:Factory/mold?expand=0&rev=55
2025-04-27 20:54:22 +00:00
Martin Liška
dd63a9b7b0 - Update to version 2.38.0
* The --audit and --depaudit options are now supported for compatibility with GNU
    ld. (af396ad)
  * Recent versions of LLVM support an alternative, experimental relocation table
    format called CREL. mold can now read object files containing CREL relocation
    tables. (c43a859)
  * [ARM32][ARM64][PPC32][PPC64] The branch instruction ranges of RISC processors
    are generally insufficient to support the medium code model because their
    instructions are typically 32 bits long, which makes it impossible to embed
    large immediate offsets. For example, ARM64’s branch instruction can target only
    PC ± 128 MiB. If the branch target is farther than that, the linker must emit a
    small piece of code—often called a thunk or branch island—to extend the branch
    range.
  * Previously, mold created unnecessary range extension thunks for symbols that had
    PLT entries. Now, mold does not create thunks unless they are truly needed.
    (a43f395)
  * Previously, --no-allow-shlib-undefined could cause a segmentation fault due to
    an out-of-bounds array access. This has been fixed. (82affb9)
  * --no-allow-shlib-undefined is enabled by default if the output type is an
    executable (as opposed to a shared library) for compatibility with other
    linkers. (43810df)
  * mold could report a spurious "duplicate symbol" error when performing LTO. This
    bug has been fixed. (5d24db5)
  * In rare cases involving symbol versioning, mold mistakenly filtered out
    necessary libraries specified with --as-needed. This bug has been fixed.
    (a97a628)
  * In rare cases involving symbol versioning, mold reported a spurious "undefined
    symbol" error. This bug has been fixed. (2d6061a)
  * If the same symbol was defined with and without the default version (e.g., if an
    object file defined both foo and foo@@VERSION), mold mistakenly hid both symbols

OBS-URL: https://build.opensuse.org/package/show/devel:tools:compiler/mold?expand=0&rev=144
2025-04-27 06:44:25 +00:00
1e33f6a496 Accepting request 1267441 from devel:tools:compiler
OBS-URL: https://build.opensuse.org/request/show/1267441
OBS-URL: https://build.opensuse.org/package/show/openSUSE:Factory/mold?expand=0&rev=54
2025-04-07 15:37:35 +00:00
Martin Liška
de7fe8b8ff - Fix build on 15.6 x86_64
OBS-URL: https://build.opensuse.org/package/show/devel:tools:compiler/mold?expand=0&rev=142
2025-04-06 20:09:57 +00:00
115689107b Accepting request 1251864 from devel:tools:compiler
OBS-URL: https://build.opensuse.org/request/show/1251864
OBS-URL: https://build.opensuse.org/package/show/openSUSE:Factory/mold?expand=0&rev=53
2025-03-11 19:44:41 +00:00
Martin Liška
13984be1b1 - Update to version 2.37.1
* Fix spurious "dupilcate symbol" error for LTO

OBS-URL: https://build.opensuse.org/package/show/devel:tools:compiler/mold?expand=0&rev=140
2025-03-10 18:03:52 +00:00
6ff3bcbf41 Accepting request 1250569 from devel:tools:compiler
- Update to version 2.37.0
  * If an undefined weak symbol is not resolved to a defined symbol at link time,
    the linker can choose whether to promote the symbol to a dynamic symbol or not.
    If promoted, the weak symbol has another chance to be resolved to a defined
    symbol at load time. Otherwise, it is resolved to address 0 at link time.
    Previously, mold always resolved remaining undefined weak symbols in an
    executable to address 0 at link time. Now, you can instruct the linker to
    promote them to dynamic symbols using -z dynamic-undefined-weak. (1822e47)
  * [x86-64] The relocation types
    R_X86_64_CODE_4_{GOTPCRELX,GOTTPOFF,GOTPC32_TLSDESC} and
    R_X86_64_CODE_6_GOTTPOFF are now supported. These relocations are for Intel APX
    (Advanced Performance Extensions), which extends the number of general-purpose
    registers from 16 to 32. (83152ac, a17202d)
  * [ARM32] The R_ARM_THM_JUMP8 relocation type is now supported. (1fbbcec)
  * [ARM32] Previously, the .ARM.exidx section (which contains exception-handling
    records) was not subject to garbage collection, even when --gc-sections was
    specified. This prevented all functions from being garbage-collected, as they
    were referenced by exception-handling records. Now, mold correctly
    garbage-collects unused .ARM.exidx records and functions. (16f7599)
  * Previously, --compress-debug-sections was ignored if --separate-debug-file was
    specified. Now, mold compresses debug information sections even when they are in
    a separate debug file. (bab7dd1)

OBS-URL: https://build.opensuse.org/request/show/1250569
OBS-URL: https://build.opensuse.org/package/show/openSUSE:Factory/mold?expand=0&rev=52
2025-03-06 13:49:35 +00:00
Martin Liška
675774a7e4 - Update to version 2.37.0
* If an undefined weak symbol is not resolved to a defined symbol at link time,
    the linker can choose whether to promote the symbol to a dynamic symbol or not.
    If promoted, the weak symbol has another chance to be resolved to a defined
    symbol at load time. Otherwise, it is resolved to address 0 at link time.
    Previously, mold always resolved remaining undefined weak symbols in an
    executable to address 0 at link time. Now, you can instruct the linker to
    promote them to dynamic symbols using -z dynamic-undefined-weak. (1822e47)
  * [x86-64] The relocation types
    R_X86_64_CODE_4_{GOTPCRELX,GOTTPOFF,GOTPC32_TLSDESC} and
    R_X86_64_CODE_6_GOTTPOFF are now supported. These relocations are for Intel APX
    (Advanced Performance Extensions), which extends the number of general-purpose
    registers from 16 to 32. (83152ac, a17202d)
  * [ARM32] The R_ARM_THM_JUMP8 relocation type is now supported. (1fbbcec)
  * [ARM32] Previously, the .ARM.exidx section (which contains exception-handling
    records) was not subject to garbage collection, even when --gc-sections was
    specified. This prevented all functions from being garbage-collected, as they
    were referenced by exception-handling records. Now, mold correctly
    garbage-collects unused .ARM.exidx records and functions. (16f7599)
  * Previously, --compress-debug-sections was ignored if --separate-debug-file was
    specified. Now, mold compresses debug information sections even when they are in
    a separate debug file. (bab7dd1)

OBS-URL: https://build.opensuse.org/package/show/devel:tools:compiler/mold?expand=0&rev=138
2025-03-06 08:10:41 +00:00
9f92fbdce1 Accepting request 1236113 from devel:tools:compiler
- Update to version 2.36.0
  * The --package-metadata=<string> option has been added to embed a given string
    into the .note.package section. This option is designed for build scripts that
    generate binary packages, such as .rpm or .deb, to include package metadata in
    each executable. It simplifies the process of identifying the corresponding
    package for a given executable or core file. (7ddc8f4)
  * [ARM][PowerPC] We've improved the algorithm for creating range extension thunks
    to reduce memory usage and improve speed. For example, linking clang-19 for
    ARM64 is now ~7% faster than before. (9fc0ace)
  * [RISC-V][LoongArch] We've improved the algorithm for code-shrinking linker
    relaxation to reduce memory usage and improve speed. For example, linking
    clang-19 for RISC-V is now ~4% faster than before. (3234d88)
  * mold created a bad relocation for an IFUNC if the linker's output file type was
    a shared library and the symbol was exported. This bug could cause a
    segmentation fault of a linked program. The problem has now been fixed.
    (a297859)
  * [RISC-V] mold could produce incorrect code as a result of code-shrinking
    relaxation for the R_RISCV_HI20 relocation. That type of relocation was used
    rarely because it is not PC-relative. That being said, if your program used the
    relocation, and the relocation targets were at a low address (from 0x1f800 to
    0x20000), your program would crash at runtime due to the linker's bug. The issue
    has now been resolved. (eec3f6b)
  * [RISC-V][LoongArch] When the linker removed instructions from a function as a
    result of code-shrinking relaxation, the function symbol's size in the output
    file should be updated to reflect the result of relaxation, even though doing it
    is mostly cosmetic. mold did not do that. Now, mold sets correct sizes to output
    function symbols. (e6345d5)
  * [LoongArch] Binaries linked with mold now work on 64 KiB page systems.
    Previously, only up to 16 KiB pages were supported. (2d7b6b2)
  * [s390x] The s390x processor-specific ABI requires the linker to reserve the

OBS-URL: https://build.opensuse.org/request/show/1236113
OBS-URL: https://build.opensuse.org/package/show/openSUSE:Factory/mold?expand=0&rev=51
2025-01-09 14:12:02 +00:00
Martin Liška
57d3c434b1 - Update to version 2.36.0
* The --package-metadata=<string> option has been added to embed a given string
    into the .note.package section. This option is designed for build scripts that
    generate binary packages, such as .rpm or .deb, to include package metadata in
    each executable. It simplifies the process of identifying the corresponding
    package for a given executable or core file. (7ddc8f4)
  * [ARM][PowerPC] We've improved the algorithm for creating range extension thunks
    to reduce memory usage and improve speed. For example, linking clang-19 for
    ARM64 is now ~7% faster than before. (9fc0ace)
  * [RISC-V][LoongArch] We've improved the algorithm for code-shrinking linker
    relaxation to reduce memory usage and improve speed. For example, linking
    clang-19 for RISC-V is now ~4% faster than before. (3234d88)
  * mold created a bad relocation for an IFUNC if the linker's output file type was
    a shared library and the symbol was exported. This bug could cause a
    segmentation fault of a linked program. The problem has now been fixed.
    (a297859)
  * [RISC-V] mold could produce incorrect code as a result of code-shrinking
    relaxation for the R_RISCV_HI20 relocation. That type of relocation was used
    rarely because it is not PC-relative. That being said, if your program used the
    relocation, and the relocation targets were at a low address (from 0x1f800 to
    0x20000), your program would crash at runtime due to the linker's bug. The issue
    has now been resolved. (eec3f6b)
  * [RISC-V][LoongArch] When the linker removed instructions from a function as a
    result of code-shrinking relaxation, the function symbol's size in the output
    file should be updated to reflect the result of relaxation, even though doing it
    is mostly cosmetic. mold did not do that. Now, mold sets correct sizes to output
    function symbols. (e6345d5)
  * [LoongArch] Binaries linked with mold now work on 64 KiB page systems.
    Previously, only up to 16 KiB pages were supported. (2d7b6b2)
  * [s390x] The s390x processor-specific ABI requires the linker to reserve the

OBS-URL: https://build.opensuse.org/package/show/devel:tools:compiler/mold?expand=0&rev=136
2025-01-09 08:08:57 +00:00
519c6878c0 Accepting request 1231732 from devel:tools:compiler
- Update to version 2.35.1
  * mold guarantees that outputs are reproducible, meaning that if you provide the
    exact same set of input files and command-line options to the same version of
    mold, the output is assured to be byte-for-byte identical. However, there was a
    bug where the --icf option caused outputs to be indeterministic, even though all
    possible outputs were logically correct (#1377). This issue has now been
    resolved. (2a78b1b)
  * [RISC-V] Support for obsolete GP-relative relocations has been removed. These
    relocations were ratified (riscv-non-isa/riscv-elf-psabi-doc@d49e480) but then
    removed (riscv-non-isa/riscv-elf-psabi-doc@ad02546) from the processor-specific
    ABI. There are no known real-world use cases for these relocations. (04066d1)

OBS-URL: https://build.opensuse.org/request/show/1231732
OBS-URL: https://build.opensuse.org/package/show/openSUSE:Factory/mold?expand=0&rev=50
2024-12-17 19:19:18 +00:00
Martin Liška
9909d0586b - Update to version 2.35.1
* mold guarantees that outputs are reproducible, meaning that if you provide the
    exact same set of input files and command-line options to the same version of
    mold, the output is assured to be byte-for-byte identical. However, there was a
    bug where the --icf option caused outputs to be indeterministic, even though all
    possible outputs were logically correct (#1377). This issue has now been
    resolved. (2a78b1b)
  * [RISC-V] Support for obsolete GP-relative relocations has been removed. These
    relocations were ratified (riscv-non-isa/riscv-elf-psabi-doc@d49e480) but then
    removed (riscv-non-isa/riscv-elf-psabi-doc@ad02546) from the processor-specific
    ABI. There are no known real-world use cases for these relocations. (04066d1)

OBS-URL: https://build.opensuse.org/package/show/devel:tools:compiler/mold?expand=0&rev=134
2024-12-17 17:10:26 +00:00
67d41b9482 Accepting request 1229097 from devel:tools:compiler
- Update to version 2.35.0
  * Big-endian ARM64 is now supported. ARM64 is a bi-endian processor, meaning that
    the processor can run in either little- or big-endian mode. Even though
    little-endian is the de facto standard, the ARM64 processor-specific ABI defines
    its big-endian variant, and the ARM toolchain supports it. Now we support it
    too. (882e7eb)
  * Big-endian SH4 is now supported. SH4 has become a minor CPU nowadays, and its
    big-endian variant is even more so, but some SHARP scientific calculators still
    use SH4 processors in big-endian mode. (0cb9fc6)
  * mold attempts to overwrite an existing file if a specified output file already
    exists because reusing an existing file is much faster than creating a fresh
    file and writing to it on Linux. If an existing file is currently running,
    open(2) for that file fails with ETXTBSY. When that happens, mold falls back to
    creating a new file. The problem here is that Linux kernel version 6.11 changed
    that well-known behavior of open(2), and it now allows user programs to
    overwrite a running executable. That caused a very mysterious issue for programs
    that rebuild themselves during the build, such as gcc or ninja (#1361). Even
    though the kernel's change has been reverted (torvalds/linux@3b83203), we need
    to make adjustments to mold for that particular version of the Linux kernel. So,
    if mold detects that it is running on Linux 6.11, it no longer tries to reuse an
    existing output file. (8e4f7b5)
  * On rare occasions, mold could fail with a "ConcurrentMap is full" error. Now the
    issue has been resolved. (e56b649)
  * Even if a user choose not to use mimalloc memory allocator (i.e. built mold with
    -DMOLD_USE_MIMALLOC=0), mold was still being built with mimalloc. This issue has
    been resolved. (ffd10dd)
  * [s390x] s390x uses nonstandard 8-byte entries for the .hash section. Previously,
    mold created 4-byte entries for .hash, which caused mold-generated executables
    to crash on startup if they were built with -Wl,--hash-style=sysv. Now, mold
    generates a psABI-compliant .hash section. (e2e1146)

OBS-URL: https://build.opensuse.org/request/show/1229097
OBS-URL: https://build.opensuse.org/package/show/openSUSE:Factory/mold?expand=0&rev=49
2024-12-09 20:11:14 +00:00
Martin Liška
747a06668b - Update to version 2.35.0
* Big-endian ARM64 is now supported. ARM64 is a bi-endian processor, meaning that
    the processor can run in either little- or big-endian mode. Even though
    little-endian is the de facto standard, the ARM64 processor-specific ABI defines
    its big-endian variant, and the ARM toolchain supports it. Now we support it
    too. (882e7eb)
  * Big-endian SH4 is now supported. SH4 has become a minor CPU nowadays, and its
    big-endian variant is even more so, but some SHARP scientific calculators still
    use SH4 processors in big-endian mode. (0cb9fc6)
  * mold attempts to overwrite an existing file if a specified output file already
    exists because reusing an existing file is much faster than creating a fresh
    file and writing to it on Linux. If an existing file is currently running,
    open(2) for that file fails with ETXTBSY. When that happens, mold falls back to
    creating a new file. The problem here is that Linux kernel version 6.11 changed
    that well-known behavior of open(2), and it now allows user programs to
    overwrite a running executable. That caused a very mysterious issue for programs
    that rebuild themselves during the build, such as gcc or ninja (#1361). Even
    though the kernel's change has been reverted (torvalds/linux@3b83203), we need
    to make adjustments to mold for that particular version of the Linux kernel. So,
    if mold detects that it is running on Linux 6.11, it no longer tries to reuse an
    existing output file. (8e4f7b5)
  * On rare occasions, mold could fail with a "ConcurrentMap is full" error. Now the
    issue has been resolved. (e56b649)
  * Even if a user choose not to use mimalloc memory allocator (i.e. built mold with
    -DMOLD_USE_MIMALLOC=0), mold was still being built with mimalloc. This issue has
    been resolved. (ffd10dd)
  * [s390x] s390x uses nonstandard 8-byte entries for the .hash section. Previously,
    mold created 4-byte entries for .hash, which caused mold-generated executables
    to crash on startup if they were built with -Wl,--hash-style=sysv. Now, mold
    generates a psABI-compliant .hash section. (e2e1146)

OBS-URL: https://build.opensuse.org/package/show/devel:tools:compiler/mold?expand=0&rev=132
2024-12-08 08:59:14 +00:00
5 changed files with 268 additions and 9 deletions

View File

@@ -1,9 +1,9 @@
diff --git a/third-party/blake3/c/CMakeLists.txt b/third-party/blake3/c/CMakeLists.txt
index 3aa6c15..4790918 100644
index ebcca1db..4c7508aa 100644
--- a/third-party/blake3/c/CMakeLists.txt
+++ b/third-party/blake3/c/CMakeLists.txt
@@ -31,7 +31,7 @@ set(BLAKE3_X86_NAMES i686 x86 X86)
endif()
@@ -111,7 +111,7 @@ endif()
mark_as_advanced(BLAKE3_SIMD_TYPE)
# library target
-add_library(blake3

View File

@@ -1,3 +0,0 @@
version https://git-lfs.github.com/spec/v1
oid sha256:a8cf638045b4a4b2697d0bcc77fd96eae93d54d57ad3021bf03b0333a727a59d
size 10057683

3
mold-2.40.1.tar.gz Normal file
View File

@@ -0,0 +1,3 @@
version https://git-lfs.github.com/spec/v1
oid sha256:d1ce09a69941f8158604c3edcc96c7178231e7dba2da66b20f5ef6e112c443b7
size 11033828

View File

@@ -1,3 +1,262 @@
-------------------------------------------------------------------
Mon Jun 9 06:57:11 UTC 2025 - Martin Liška <martin.liska@hey.com>
- Update to version 2.40.1
* We've eliminated unnecessary memory zero-initialization for the
--compress-debug-sections option to make debug section compression faster. With
this change, mold sometimes runs faster with --compress-debug-sections than
without it due to reduced file I/O. (d59c559)
* Previously, mold used an exponential pattern-matching algorithm for glob
matching, which could significantly slow down version scripts or dynamic list
processing for certain glob patterns. Now, we use a linear-time algorithm that
is guaranteed to run efficiently for any glob pattern. (dac20fa)
* mold now reports an error if the output .dynsym refers to a section whose
section index is ≥65280, since such a dynamic symbol is not representable in
ELF. Previously, mold crashed with an assertion failure. (0d8334e)
-------------------------------------------------------------------
Mon May 26 06:52:40 UTC 2025 - Martin Liška <martin.liska@hey.com>
- Update to version 2.40.0
* mold now lays out DWARF32 debug info before DWARF64 in output debug sections to
mitigate relocation overflow issues with DWARF32 when a debug info section
exceeds 4 GiB. This should help people who are building extremely large
executables in debug mode. (19a1bc6, 159ce3b)
* Here are the details: By default, GCC and Clang emit DWARF32 even for 64-bit
code. That is, the debug info typically uses 32 bit offsets to refer to
locations in other debug info sections while it uses 64 bits to represent
addresses. This imposes a limitation on the largest offset DWARF32 debug info
can refer to, which is 4 GiB. If the output debug section exceeds that size, the
linker may report a relocation overflow error. You can instruct the compilers to
emit DWARF64, which uses 64 bits for inter-debug info references, if you are
building an extremely large executable. So, the proper fix for the relocation
overflow issue is to build all object files with -gdwarf64. However, rebuilding
all static libraries with the new compiler flag is not always feasible for
various reasons. This new feature mitigates the issue by placing DWARF32 at the
beginning of output debug info sections, followed by DWARF64. By doing so,
relocation overflow can be prevented as long as the total size of DWARF32
remains under 4 GiB, allowing users to continue using object files compiled
without -gdwarf64 for very large executables.
* Note that mold only sorts debug section contents when their size exceeds 4 GiB.
Therefore, for most outputs, this mitigation doesn't change the result at all.
* Fixed a regression introduced in 2.38.0 in which a thread-local variable with an
unusually large alignment might not have been aligned properly. That caused
mislinking of systemd when LTO was enabled (#1463). (53c1758)
* Fixed a regression introduced in 2.38.0 in which --as-needed was ignored when
creating an executable under a rare condition. (af36625)
* Fixed an assertion failure on some targets that is triggered when an weak
undefined symbol in an executable is promoted to a dynamic symbol with the -z
dynamic-undefined-weak option. (0fdffad)
* mold now ignores --dynamic-linker if -static is given. The new behavior is
compatible with GNU ld. (c13ecc9)
-------------------------------------------------------------------
Mon May 12 16:55:44 UTC 2025 - Martin Liška <martin.liska@hey.com>
- Update to version 2.39.1
* Fixed a potential use-after-free issue that occurred when doing LTO (link-time
optimization) with LLVM. (d0dffd5)
-------------------------------------------------------------------
Mon May 5 18:58:54 UTC 2025 - Martin Liška <martin.liska@hey.com>
- Update to version 2.39.0
* [ARM32] Support for 32-bit big-endian ARM has been added. Although running ARM32
in big-endian mode is very rare, the processor does technically support both
little- and big-endian modes, and we now support both.
* There are two variants of big-endian mode for ARM32: BE32 and BE8. BE32 is now
obsolete and uses big-endian format for both instructions and data. In BE8,
instructions are always in little-endian (i.e., the same as little-endian
ARM32), while only the data is in big-endian. mold supports only BE8 output.
(157b16a)
* Fixed a spurious --no-allow-shlib-undefined error. (3274bcb)
* [ARM][PPC] Fixed a regression introduced in 2.38.0 that mold could crash when
linking a large program. (fded2d8)
* Previously, --default-symver didn't set versions to symbols if the symbols were
marked as global: in a version script. Now, --default-symver correctly version
all symbols with the soname of the output file. (8bae43b)
* [RISC-V] Fixed an issue where mold reported an error on R_RISCV_32 when the
target was 64-bit RISC-V. (564757a)
* [RISC-V] Fixed an issue where a call to an weak undefined symbol within the same
shared library was mistakenly turned into an infinite loop. Now, such calls are
promoted to a function call through the PLT entry. (e08e7f6)
* Fixed an issue that mold falls into an infinite loop in a rare occasion when
computing an address of the program header. (83dd353)
-------------------------------------------------------------------
Tue Apr 29 04:18:50 UTC 2025 - Martin Liška <martin.liska@hey.com>
- Update to version 2.38.1
* Fixed a bug where mold could fail with a spurious mutually-recursive .so
detected error message when building an executable. This happened if there was a
circular dependency between shared libraries given to the linker (i.e.,
libfoo.so depends on libbar.so and vice versa). Even though libraries with
circular dependencies are rare and a strong indication of a bug in the original
program's library layering, the dynamic loader can load such libraries, and the
linker shouldn't reject them. (21e20e0)
-------------------------------------------------------------------
Sun Apr 27 06:40:12 UTC 2025 - Martin Liška <martin.liska@hey.com>
- Update to version 2.38.0
* The --audit and --depaudit options are now supported for compatibility with GNU
ld. (af396ad)
* Recent versions of LLVM support an alternative, experimental relocation table
format called CREL. mold can now read object files containing CREL relocation
tables. (c43a859)
* [ARM32][ARM64][PPC32][PPC64] The branch instruction ranges of RISC processors
are generally insufficient to support the medium code model because their
instructions are typically 32 bits long, which makes it impossible to embed
large immediate offsets. For example, ARM64s branch instruction can target only
PC ± 128 MiB. If the branch target is farther than that, the linker must emit a
small piece of code—often called a thunk or branch island—to extend the branch
range.
* Previously, mold created unnecessary range extension thunks for symbols that had
PLT entries. Now, mold does not create thunks unless they are truly needed.
(a43f395)
* Previously, --no-allow-shlib-undefined could cause a segmentation fault due to
an out-of-bounds array access. This has been fixed. (82affb9)
* --no-allow-shlib-undefined is enabled by default if the output type is an
executable (as opposed to a shared library) for compatibility with other
linkers. (43810df)
* mold could report a spurious "duplicate symbol" error when performing LTO. This
bug has been fixed. (5d24db5)
* In rare cases involving symbol versioning, mold mistakenly filtered out
necessary libraries specified with --as-needed. This bug has been fixed.
(a97a628)
* In rare cases involving symbol versioning, mold reported a spurious "undefined
symbol" error. This bug has been fixed. (2d6061a)
* If the same symbol was defined with and without the default version (e.g., if an
object file defined both foo and foo@@VERSION), mold mistakenly hid both symbols
from the dynamic symbol table instead of exporting the default one (e.g.,
foo@@VERSION). This bug has been fixed. (ac6f1ec)
-------------------------------------------------------------------
Sat Apr 5 15:06:39 UTC 2025 - Luigi Baldoni <aloisio@gmx.com>
- Fix build on 15.6 x86_64
-------------------------------------------------------------------
Mon Mar 10 10:09:57 UTC 2025 - Thomas Williams <junknot@gmail.com>
- Update to version 2.37.1
* Fix spurious "dupilcate symbol" error for LTO
-------------------------------------------------------------------
Thu Mar 6 08:06:35 UTC 2025 - Martin Liška <martin.liska@hey.com>
- Update to version 2.37.0
* If an undefined weak symbol is not resolved to a defined symbol at link time,
the linker can choose whether to promote the symbol to a dynamic symbol or not.
If promoted, the weak symbol has another chance to be resolved to a defined
symbol at load time. Otherwise, it is resolved to address 0 at link time.
Previously, mold always resolved remaining undefined weak symbols in an
executable to address 0 at link time. Now, you can instruct the linker to
promote them to dynamic symbols using -z dynamic-undefined-weak. (1822e47)
* [x86-64] The relocation types
R_X86_64_CODE_4_{GOTPCRELX,GOTTPOFF,GOTPC32_TLSDESC} and
R_X86_64_CODE_6_GOTTPOFF are now supported. These relocations are for Intel APX
(Advanced Performance Extensions), which extends the number of general-purpose
registers from 16 to 32. (83152ac, a17202d)
* [ARM32] The R_ARM_THM_JUMP8 relocation type is now supported. (1fbbcec)
* [ARM32] Previously, the .ARM.exidx section (which contains exception-handling
records) was not subject to garbage collection, even when --gc-sections was
specified. This prevented all functions from being garbage-collected, as they
were referenced by exception-handling records. Now, mold correctly
garbage-collects unused .ARM.exidx records and functions. (16f7599)
* Previously, --compress-debug-sections was ignored if --separate-debug-file was
specified. Now, mold compresses debug information sections even when they are in
a separate debug file. (bab7dd1)
-------------------------------------------------------------------
Thu Jan 9 08:02:26 UTC 2025 - Martin Liška <martin.liska@hey.com>
- Update to version 2.36.0
* The --package-metadata=<string> option has been added to embed a given string
into the .note.package section. This option is designed for build scripts that
generate binary packages, such as .rpm or .deb, to include package metadata in
each executable. It simplifies the process of identifying the corresponding
package for a given executable or core file. (7ddc8f4)
* [ARM][PowerPC] We've improved the algorithm for creating range extension thunks
to reduce memory usage and improve speed. For example, linking clang-19 for
ARM64 is now ~7% faster than before. (9fc0ace)
* [RISC-V][LoongArch] We've improved the algorithm for code-shrinking linker
relaxation to reduce memory usage and improve speed. For example, linking
clang-19 for RISC-V is now ~4% faster than before. (3234d88)
* mold created a bad relocation for an IFUNC if the linker's output file type was
a shared library and the symbol was exported. This bug could cause a
segmentation fault of a linked program. The problem has now been fixed.
(a297859)
* [RISC-V] mold could produce incorrect code as a result of code-shrinking
relaxation for the R_RISCV_HI20 relocation. That type of relocation was used
rarely because it is not PC-relative. That being said, if your program used the
relocation, and the relocation targets were at a low address (from 0x1f800 to
0x20000), your program would crash at runtime due to the linker's bug. The issue
has now been resolved. (eec3f6b)
* [RISC-V][LoongArch] When the linker removed instructions from a function as a
result of code-shrinking relaxation, the function symbol's size in the output
file should be updated to reflect the result of relaxation, even though doing it
is mostly cosmetic. mold did not do that. Now, mold sets correct sizes to output
function symbols. (e6345d5)
* [LoongArch] Binaries linked with mold now work on 64 KiB page systems.
Previously, only up to 16 KiB pages were supported. (2d7b6b2)
* [s390x] The s390x processor-specific ABI requires the linker to reserve the
first three slots of the .got section for the runtime. mold, however, reserved
only two slots and used the third for itself. Even though we did not observe
issues in the wild, it was a violation of the psABI. The problem has now been
fixed. (dfce2fc)
-------------------------------------------------------------------
Tue Dec 17 06:02:19 UTC 2024 - Martin Liška <martin.liska@hey.com>
- Update to version 2.35.1
* mold guarantees that outputs are reproducible, meaning that if you provide the
exact same set of input files and command-line options to the same version of
mold, the output is assured to be byte-for-byte identical. However, there was a
bug where the --icf option caused outputs to be indeterministic, even though all
possible outputs were logically correct (#1377). This issue has now been
resolved. (2a78b1b)
* [RISC-V] Support for obsolete GP-relative relocations has been removed. These
relocations were ratified (riscv-non-isa/riscv-elf-psabi-doc@d49e480) but then
removed (riscv-non-isa/riscv-elf-psabi-doc@ad02546) from the processor-specific
ABI. There are no known real-world use cases for these relocations. (04066d1)
-------------------------------------------------------------------
Sun Dec 8 08:58:41 UTC 2024 - Martin Liška <martin.liska@hey.com>
- Update to version 2.35.0
* Big-endian ARM64 is now supported. ARM64 is a bi-endian processor, meaning that
the processor can run in either little- or big-endian mode. Even though
little-endian is the de facto standard, the ARM64 processor-specific ABI defines
its big-endian variant, and the ARM toolchain supports it. Now we support it
too. (882e7eb)
* Big-endian SH4 is now supported. SH4 has become a minor CPU nowadays, and its
big-endian variant is even more so, but some SHARP scientific calculators still
use SH4 processors in big-endian mode. (0cb9fc6)
* mold attempts to overwrite an existing file if a specified output file already
exists because reusing an existing file is much faster than creating a fresh
file and writing to it on Linux. If an existing file is currently running,
open(2) for that file fails with ETXTBSY. When that happens, mold falls back to
creating a new file. The problem here is that Linux kernel version 6.11 changed
that well-known behavior of open(2), and it now allows user programs to
overwrite a running executable. That caused a very mysterious issue for programs
that rebuild themselves during the build, such as gcc or ninja (#1361). Even
though the kernel's change has been reverted (torvalds/linux@3b83203), we need
to make adjustments to mold for that particular version of the Linux kernel. So,
if mold detects that it is running on Linux 6.11, it no longer tries to reuse an
existing output file. (8e4f7b5)
* On rare occasions, mold could fail with a "ConcurrentMap is full" error. Now the
issue has been resolved. (e56b649)
* Even if a user choose not to use mimalloc memory allocator (i.e. built mold with
-DMOLD_USE_MIMALLOC=0), mold was still being built with mimalloc. This issue has
been resolved. (ffd10dd)
* [s390x] s390x uses nonstandard 8-byte entries for the .hash section. Previously,
mold created 4-byte entries for .hash, which caused mold-generated executables
to crash on startup if they were built with -Wl,--hash-style=sysv. Now, mold
generates a psABI-compliant .hash section. (e2e1146)
-------------------------------------------------------------------
Fri Oct 4 18:37:30 UTC 2024 - Martin Liška <martin.liska@hey.com>

View File

@@ -1,7 +1,7 @@
#
# spec file for package mold
#
# Copyright (c) 2024 SUSE LLC
# Copyright (c) 2025 SUSE LLC
#
# All modifications and additions to the file contributed by third parties
# remain the property of their copyright owners, unless otherwise agreed
@@ -17,7 +17,7 @@
Name: mold
Version: 2.34.1
Version: 2.40.1
Release: 0
Summary: A Modern Linker (mold)
License: MIT
@@ -81,6 +81,7 @@ export CXX=g++-11
%if %{suse_version} < 1550
export TEST_CC=gcc-11
export TEST_CXX=g++-11
export TEST_GXX=g++-11
%endif
%ctest
@@ -110,6 +111,5 @@ fi
%{_mandir}/man1/ld.mold.1.gz
%dir %{_docdir}/mold
%doc %{_docdir}/mold/LICENSE
%doc %{_docdir}/mold/LICENSE.third-party
%changelog