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]>
---
Testing:
- Bootstrapped on x86_64
- Built and tested cross i686 as well as with i686 runtime
- Requested Romain to test with their configuration as well
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 3d35c038916..13aca2c9d2a 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);
--
2.50.1
