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| author | Pierre-Emmanuel Patry <pierre-emmanuel.patry@embecosm.com> | 2023-11-17 15:26:43 +0100 |
|---|---|---|
| committer | P-E-P <32375388+P-E-P@users.noreply.github.com> | 2023-11-21 10:17:09 +0000 |
| commit | 5f0e77ad4623bc5450808367d902836b7257066b (patch) | |
| tree | bf5a5d843576facd3030bf0c6efea52ce1770d94 | |
| parent | 1a758c3a9bb3e57a8d168e66f37c63ac024df4d5 (diff) | |
| download | gcc-5f0e77ad4623bc5450808367d902836b7257066b.zip gcc-5f0e77ad4623bc5450808367d902836b7257066b.tar.gz gcc-5f0e77ad4623bc5450808367d902836b7257066b.tar.bz2 | |
fixup: Ensure buffer allocation for bootstrap
Bootstrap was failing because the vector did not allocate the internal
buffer and was holding a null pointer.
Commit to fixup is b71fd2afa831
gcc/rust/ChangeLog:
* expand/rust-proc-macro.cc (generate_proc_macro_decls_symbol): Resize
the vector and initialize it with dummy data before changing it.
Signed-off-by: Pierre-Emmanuel Patry <pierre-emmanuel.patry@embecosm.com>
| -rw-r--r-- | gcc/rust/expand/rust-proc-macro.cc | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/gcc/rust/expand/rust-proc-macro.cc b/gcc/rust/expand/rust-proc-macro.cc index 3865b87..c5bd87a 100644 --- a/gcc/rust/expand/rust-proc-macro.cc +++ b/gcc/rust/expand/rust-proc-macro.cc @@ -183,7 +183,8 @@ generate_proc_macro_decls_symbol (std::uint32_t stable_crate_id) // Size could be hardcoded since we know the input size but I elected to // calculate it everytime so we won't have any desync between code and data. int size = std::snprintf (nullptr, 0, PROC_MACRO_DECLS_FMT_ARGS); - std::vector<char> buf (size + 1); + std::vector<char> buf; + buf.resize (size + 1, '\0'); std::sprintf (buf.data (), PROC_MACRO_DECLS_FMT_ARGS); #undef PROC_MACRO_DECLS_FMT_ARGS |