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| author | Andrew Burgess <andrew.burgess@embecosm.com> | 2018-12-04 15:56:09 +0000 |
|---|---|---|
| committer | Andrew Burgess <andrew.burgess@embecosm.com> | 2018-12-12 14:21:31 +0000 |
| commit | 4de3d8d06673d130e256a6ad81e5df2e412934c1 (patch) | |
| tree | 042cceb76e5a824b6b97adfea68570a0c85a6a2c | |
| parent | 13dc50ee16e1ff4180da61bdbd86e4a3c304b283 (diff) | |
| download | binutils-gdb-4de3d8d06673d130e256a6ad81e5df2e412934c1.tar.gz | |
gdb/riscv: Handle passing variadic floating point arguments
This commit fixes some test failures in gdb.base/varargs.exp when
running on targets with floating point hardware. Floating point
unnamed (variadic) arguments should be passed in integer registers
according to the abi.
After this commit I see no failures in gdb.base/varargs.exp on 32 or
64 bit targets with floating point hardware.
gdb/ChangeLog:
* riscv-tdep.c (riscv_call_arg_scalar_float): Unnamed (variadic)
arguments are passed in integer registers.
(riscv_call_arg_complex_float): Likewise.
| -rw-r--r-- | gdb/ChangeLog | 6 | ||||
| -rw-r--r-- | gdb/riscv-tdep.c | 5 |
2 files changed, 9 insertions, 2 deletions
diff --git a/gdb/ChangeLog b/gdb/ChangeLog index 3d35d3b4b8f..687c5ae961e 100644 --- a/gdb/ChangeLog +++ b/gdb/ChangeLog @@ -1,3 +1,9 @@ +2018-12-12 Andrew Burgess <andrew.burgess@embecosm.com> + + * riscv-tdep.c (riscv_call_arg_scalar_float): Unnamed (variadic) + arguments are passed in integer registers. + (riscv_call_arg_complex_float): Likewise. + 2018-12-11 Philippe Waroquiers <philippe.waroquiers@skynet.be> * nat/linux-osdata.c (common_getter): New function. diff --git a/gdb/riscv-tdep.c b/gdb/riscv-tdep.c index 5ddec703071..fc424fb042c 100644 --- a/gdb/riscv-tdep.c +++ b/gdb/riscv-tdep.c @@ -1935,7 +1935,7 @@ static void riscv_call_arg_scalar_float (struct riscv_arg_info *ainfo, struct riscv_call_info *cinfo) { - if (ainfo->length > cinfo->flen) + if (ainfo->length > cinfo->flen || ainfo->is_unnamed) return riscv_call_arg_scalar_int (ainfo, cinfo); else { @@ -1955,7 +1955,8 @@ riscv_call_arg_complex_float (struct riscv_arg_info *ainfo, struct riscv_call_info *cinfo) { if (ainfo->length <= (2 * cinfo->flen) - && riscv_arg_regs_available (&cinfo->float_regs) >= 2) + && riscv_arg_regs_available (&cinfo->float_regs) >= 2 + && !ainfo->is_unnamed) { bool result; int len = ainfo->length / 2; |