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[commit/ppc64] Linux sizeof long-double
- From: Andrew Cagney <cagney at gnu dot org>
- To: gdb-patches at sources dot redhat dot com
- Date: Tue, 25 Jan 2005 17:07:41 -0500
- Subject: [commit/ppc64] Linux sizeof long-double
According to GCC it's 8.
Andrew
2005-01-25 Andrew Cagney <cagney@gnu.org>
* ppc-linux-tdep.c (ppc_linux_init_abi): Always set
long_double_bit to 8.
Index: ppc-linux-tdep.c
===================================================================
RCS file: /cvs/src/src/gdb/ppc-linux-tdep.c,v
retrieving revision 1.68
diff -p -u -r1.68 ppc-linux-tdep.c
--- ppc-linux-tdep.c 31 Oct 2004 20:24:32 -0000 1.68
+++ ppc-linux-tdep.c 25 Jan 2005 22:04:57 -0000
@@ -1025,17 +1025,18 @@ ppc_linux_init_abi (struct gdbarch_info
{
struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch);
+ /* NOTE: jimb/2004-03-26: The System V ABI PowerPC Processor
+ Supplement says that long doubles are sixteen bytes long.
+ However, as one of the known warts of its ABI, PPC GNU/Linux uses
+ eight-byte long doubles. GCC only recently got 128-bit long
+ double support on PPC, so it may be changing soon. The
+ Linux[sic] Standards Base says that programs that use 'long
+ double' on PPC GNU/Linux are non-conformant. */
+ /* NOTE: cagney/2005-01-25: True for both 32- and 64-bit. */
+ set_gdbarch_long_double_bit (gdbarch, 8 * TARGET_CHAR_BIT);
+
if (tdep->wordsize == 4)
{
- /* NOTE: jimb/2004-03-26: The System V ABI PowerPC Processor
- Supplement says that long doubles are sixteen bytes long.
- However, as one of the known warts of its ABI, PPC GNU/Linux
- uses eight-byte long doubles. GCC only recently got 128-bit
- long double support on PPC, so it may be changing soon. The
- Linux[sic] Standards Base says that programs that use 'long
- double' on PPC GNU/Linux are non-conformant. */
- set_gdbarch_long_double_bit (gdbarch, 8 * TARGET_CHAR_BIT);
-
/* Until November 2001, gcc did not comply with the 32 bit SysV
R4 ABI requirement that structures less than or equal to 8
bytes should be returned in registers. Instead GCC was using