public inbox for gdb-cvs@sourceware.org
help / color / mirror / Atom feed
* [binutils-gdb] Change riscv_return_value to use RETURN_VALUE_ABI_PRESERVES_ADDRESS
@ 2022-01-05 19:38 Tom Tromey
0 siblings, 0 replies; only message in thread
From: Tom Tromey @ 2022-01-05 19:38 UTC (permalink / raw)
To: gdb-cvs
https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git;h=d4be21dce768ba5cddc300544a4953748187982c
commit d4be21dce768ba5cddc300544a4953748187982c
Author: Tom Tromey <tromey@adacore.com>
Date: Tue Dec 14 08:46:59 2021 -0700
Change riscv_return_value to use RETURN_VALUE_ABI_PRESERVES_ADDRESS
Internally, AdaCore has a test that is equivalent to (really a direct
translation of) gdb.base/gnu_vector.exp. On 32-bit RISC-V, the
"return" part of this test fails.
Joel tracked this down to riscv_return_value returning
RETURN_VALUE_ABI_RETURNS_ADDRESS. Using
RETURN_VALUE_ABI_PRESERVES_ADDRESS is more correct here, and fixes the
bug.
I tested this for both 32- and 64-bit RISC-V using the AdaCore
internal test suite, and Andrew Burgess tested it using
gnu_vector.exp.
Diff:
---
gdb/riscv-tdep.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/gdb/riscv-tdep.c b/gdb/riscv-tdep.c
index 5a6269887e7..886996ce5b7 100644
--- a/gdb/riscv-tdep.c
+++ b/gdb/riscv-tdep.c
@@ -3301,7 +3301,7 @@ riscv_return_value (struct gdbarch *gdbarch,
case riscv_arg_info::location::in_reg:
return RETURN_VALUE_REGISTER_CONVENTION;
case riscv_arg_info::location::by_ref:
- return RETURN_VALUE_ABI_RETURNS_ADDRESS;
+ return RETURN_VALUE_ABI_PRESERVES_ADDRESS;
case riscv_arg_info::location::on_stack:
default:
error (_("invalid argument location"));
^ permalink raw reply [flat|nested] only message in thread
only message in thread, other threads:[~2022-01-05 19:38 UTC | newest]
Thread overview: (only message) (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2022-01-05 19:38 [binutils-gdb] Change riscv_return_value to use RETURN_VALUE_ABI_PRESERVES_ADDRESS Tom Tromey
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for read-only IMAP folder(s) and NNTP newsgroup(s).