https://gcc.gnu.org/g:b0e3253dc990beb637b70d2e0c43e8ec586d169f
commit r15-10570-gb0e3253dc990beb637b70d2e0c43e8ec586d169f Author: Siddhesh Poyarekar <[email protected]> Date: Mon Nov 24 20:32:08 2025 -0500 lto/122515: Avoid using SSIZE_MAX SSIZE_MAX may not always be available, so build it using (size_t) -1 instead. gcc/lto/ChangeLog: PR lto/122515 * lto-common.cc (lto_read_section_data): Avoid using SSIZE_MAX. Signed-off-by: Siddhesh Poyarekar <[email protected]> (cherry picked from commit fb9b614c675f66a7979a5f37ef60f32fab73abdd) Diff: --- gcc/lto/lto-common.cc | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/gcc/lto/lto-common.cc b/gcc/lto/lto-common.cc index 3d35c0389161..13aca2c9d2af 100644 --- a/gcc/lto/lto-common.cc +++ b/gcc/lto/lto-common.cc @@ -2438,7 +2438,7 @@ lto_read_section_data (struct lto_file_decl_data *file_data, computed_offset = offset & ((off_t) page_mask); diff = offset - computed_offset; - if (len > (size_t) (SSIZE_MAX - diff)) + if (len > (((size_t) -1) >> 1) - diff) { fatal_error (input_location, "Cannot map %s: section is too long", file_data->file_name);
