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2024-01-03Update copyright years.Jakub Jelinek1-1/+1
2023-01-16Update copyright years.Jakub Jelinek1-1/+1
2022-07-04Fix typo in recent code to add stack recursion limit to the Rust demangler.Nick Clifton1-0/+1
libiberty * rust-demangle.c (demangle_const): Add a missing goto pass_return at the end of the function.
2022-07-04Prevent another potential stack overflow issue when demangling a maliciouslt ↵Nick Clifton1-0/+17
mangled Rust name. libiberty/ * rust-demangle.c (demangle_path_maybe_open_generics): Add recursion limit.
2022-07-01Add a recursion limit to the demangle_const function in the Rust demangler.Nick Clifton1-9/+20
libiberty/ PR demangler/105039 * rust-demangle.c (demangle_const): Add recursion limit.
2022-02-17libiberty rust-demangle, ignore .suffixMark Wielaard1-3/+18
Rust symbols can have a .suffix because of compiler transformations. These can be ignored in the demangled name. Which is what this patch implements. By stopping at the first dot for v0 symbols and searching backwards to the ending 'E' for legacy symbols. An alternative implementation could be to follow what C++ does and represent these as [clone .suffix] tagged onto the demangled name. But this seems somewhat confusing since it results in a demangled name that cannot be mangled again. And it would mean trying to decode compiler internal naming. https://bugs.kde.org/show_bug.cgi?id=445916 https://github.com/rust-lang/rust/issues/60705 libiberty/Changelog * rust-demangle.c (rust_demangle_callback): Ignore everything after '.' char in sym for v0. For legacy symbols search backwards to find the last 'E' before any '.'. * testsuite/rust-demangle-expected: Add new .suffix testcases.
2022-01-31libiberty: Fix infinite recursion in rust demangler.Nick Clifton1-6/+41
libiberty/ PR demangler/98886 PR demangler/99935 * rust-demangle.c (struct rust_demangler): Add a recursion counter. (demangle_path): Increment/decrement the recursion counter upon entry and exit. Fail if the counter exceeds a fixed limit. (demangle_type): Likewise. (rust_demangle_callback): Initialise the recursion counter, disabling if requested by the option flags.
2022-01-03Update copyright years.Jakub Jelinek1-1/+1
2021-04-21Fix endian bug in rust demanglerAndreas Schwab1-3/+6
libiberty/ PR demangler/100177 * rust-demangle.c (demangle_const_char): Properly print the character value.
2021-01-04Update copyright years.Jakub Jelinek1-1/+1
2020-11-13libiberty: Support the new ("v0") mangling scheme in rust-demangleEduard-Mihai Burtescu1-10/+1000
This is the libiberty (mainly for binutils/gdb) counterpart of https://github.com/alexcrichton/rustc-demangle/pull/23. Relevant links for the new Rust mangling scheme (aka "v0"): * Rust RFC: https://github.com/rust-lang/rfcs/pull/2603 * tracking issue: https://github.com/rust-lang/rust/issues/60705 * implementation: https://github.com/rust-lang/rust/pull/57967 This implementation includes full support for UTF-8 identifiers via punycode, so I've included a testcase for that as well. libiberty/ChangeLog: * rust-demangle.c (struct rust_demangler): Add skipping_printing and bound_lifetime_depth fields. (eat): Add (v0-only). (parse_integer_62): Add (v0-only). (parse_opt_integer_62): Add (v0-only). (parse_disambiguator): Add (v0-only). (struct rust_mangled_ident): Add punycode{,_len} fields. (parse_ident): Support v0 identifiers. (print_str): Respect skipping_printing. (print_uint64): Add (v0-only). (print_uint64_hex): Add (v0-only). (print_ident): Respect skipping_printing, Support v0 identifiers. (print_lifetime_from_index): Add (v0-only). (demangle_binder): Add (v0-only). (demangle_path): Add (v0-only). (demangle_generic_arg): Add (v0-only). (demangle_type): Add (v0-only). (demangle_path_maybe_open_generics): Add (v0-only). (demangle_dyn_trait): Add (v0-only). (demangle_const): Add (v0-only). (demangle_const_uint): Add (v0-only). (basic_type): Add (v0-only). (rust_demangle_callback): Support v0 symbols. * testsuite/rust-demangle-expected: Add v0 testcases.
2020-01-01Update copyright years.Jakub Jelinek1-1/+1
From-SVN: r279813
2019-11-16[PATCH] Refactor rust-demangle to be independent of C++ demangling.Eduard-Mihai Burtescu1-181/+391
* demangle.h (rust_demangle_callback): Add. * cplus-dem.c (cplus_demangle): Use rust_demangle directly. (rust_demangle): Remove. * rust-demangle.c (is_prefixed_hash): Rename to is_legacy_prefixed_hash. (parse_lower_hex_nibble): Rename to decode_lower_hex_nibble. (parse_legacy_escape): Rename to decode_legacy_escape. (rust_is_mangled): Remove. (struct rust_demangler): Add. (peek): Add. (next): Add. (struct rust_mangled_ident): Add. (parse_ident): Add. (rust_demangle_sym): Remove. (print_str): Add. (PRINT): Add. (print_ident): Add. (rust_demangle_callback): Add. (struct str_buf): Add. (str_buf_reserve): Add. (str_buf_append): Add. (str_buf_demangle_callback): Add. (rust_demangle): Add. * rust-demangle.h: Remove. From-SVN: r278358
2019-10-03rust-demangle.c (looks_like_rust): Remove.Eduard-Mihai Burtescu1-39/+25
* rust-demangle.c (looks_like_rust): Remove. (rust_is_mangled): Don't check escapes. (is_prefixed_hash): Allow 0-9a-f permutations. (rust_demangle_sym): Don't bail on unknown escapes. * testsuite/rust-demangle-expected: Update 'main::$99$' test. From-SVN: r276539
2019-09-03rust-demangle.c (unescape): Remove.Eduard-Mihai Burtescu1-147/+134
* rust-demangle.c (unescape): Remove. (parse_lower_hex_nibble): New function. (parse_legacy_escape): New function. (is_prefixed_hash): Use parse_lower_hex_nibble. (looks_like_rust): Use parse_legacy_escape. (rust_demangle_sym): Use parse_legacy_escape. * testsuite/rust-demangle-expected: Add 'llv$u6d$' test. From-SVN: r275353
2019-07-18demangle.h (rust_is_mangled): Move to libiberty/rust-demangle.h.Eduard-Mihai Burtescu1-0/+1
include/ * demangle.h (rust_is_mangled): Move to libiberty/rust-demangle.h. (rust_demangle_sym): Move to libiberty/rust-demangle.h. libiberty/ * cplus-dem.c: Include rust-demangle.h. * rust-demangle.c: Include rust-demangle.h. * rust-demangle.h: New file. From-SVN: r273573
2019-01-01Update copyright years.Jakub Jelinek1-1/+1
From-SVN: r267494
2018-01-03Update copyright years.Jakub Jelinek1-1/+1
From-SVN: r256169
2017-01-04Update copyright years.Jakub Jelinek1-1/+1
From-SVN: r244052
2016-11-16libiberty: Add Rust symbol demangling.David Tolnay1-0/+348
Adds Rust symbol demangler. Rust mangles symbols using GNU_V3 style, adding a hash and various special character subtitutions. This adds a new rust style to cplus_demangle and adds 3 helper functions rust_demangle, rust_demangle_sym and rust_is_mangled. rust-demangle.c was written by David. Mark did the code formatting to GNU style and integration into the gcc/libiberty build system and testsuite. include/ChangeLog: 2016-11-03 David Tolnay <dtolnay@gmail.com> Mark Wielaard <mark@klomp.org> * demangle.h (DMGL_RUST): New macro. (DMGL_STYLE_MASK): Add DMGL_RUST. (demangling_styles): Add dlang_rust. (RUST_DEMANGLING_STYLE_STRING): New macro. (RUST_DEMANGLING): New macro. (rust_demangle): New prototype. (rust_is_mangled): Likewise. (rust_demangle_sym): Likewise. libiberty/ChangeLog: 2016-11-03 David Tolnay <dtolnay@gmail.com> Mark Wielaard <mark@klomp.org> * Makefile.in (CFILES): Add rust-demangle.c. (REQUIRED_OFILES): Add rust-demangle.o. * cplus-dem.c (libiberty_demanglers): Add rust_demangling case. (cplus_demangle): Handle RUST_DEMANGLING. (rust_demangle): New function. * rust-demangle.c: New file. * testsuite/Makefile.in (really-check): Add check-rust-demangle. (check-rust-demangle): New rule. * testsuite/rust-demangle-expected: New file. Co-Authored-By: Mark Wielaard <mark@klomp.org> From-SVN: r242524
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