From: Olivier Hainque <hainque@adacore.com>
To: GCC Patches <gcc-patches@gcc.gnu.org>
Cc: Olivier Hainque <hainque@adacore.com>,
Douglas B Rupp <rupp@adacore.com>,
Jerome Lambourg <lambourg@adacore.com>,
Nathan Sidwell <nathan@acm.org>
Subject: x86_64-vxworks* support, vxworks target files updates
Date: Tue, 27 Jun 2017 13:45:00 -0000 [thread overview]
Message-ID: <2349EBC7-97D2-47EA-95C4-C562C6166E3D@adacore.com> (raw)
[-- Attachment #1: Type: text/plain, Size: 636 bytes --]
Hello,
Minor updates to the x86 specific config files
for VxWorks, to account for 64bit ABIs.
Tested together with the previous patches in the
vx7 series, for x86_64-vxworks7 in particular.
Committing to mainline.
With Kind Regards,
Olivier
2017-06-27 Jerome Lambourg <lambourg@adacore.com>
Olivier Hainque <hainque@adacore.com>
* config/i386/vxworks.h (DBX_REGISTER_NUMBER): Pick distinct
map for 64bits.
(TARGET_OS_CPP_BUILTINS): builtin_define CPU to X86_64 for 64bit
targets. Pick a default if no particular attempt applied.
(STACK_CHECK_PROTECT): Double for 64bit targets, which have
larger contexts.
[-- Attachment #2: 0007-support-for-x86-and-x86_64-vxworks7-vxworks-config-f.patch --]
[-- Type: application/octet-stream, Size: 1320 bytes --]
--- a/gcc/config/i386/vxworks.h
+++ b/gcc/config/i386/vxworks.h
@@ -34,7 +34,8 @@ along with GCC; see the file COPYING3. If not see
the SVR4 numbering. */
#undef DBX_REGISTER_NUMBER
-#define DBX_REGISTER_NUMBER(n) svr4_dbx_register_map[n]
+#define DBX_REGISTER_NUMBER(n) \
+ (TARGET_64BIT ? dbx64_register_map[n] : svr4_dbx_register_map[n])
#define TARGET_OS_CPP_BUILTINS() \
do \
@@ -59,7 +60,11 @@ along with GCC; see the file COPYING3. If not see
builtin_define ("CPU=PENTIUM4"); \
builtin_define ("CPU_VARIANT=PENTIUM4"); \
} \
- } \
+ else if (TARGET_64BIT) \
+ builtin_define ("CPU=X86_64"); \
+ else \
+ builtin_define ("CPU=I80386"); \
+ } \
while (0)
#undef CPP_SPEC
@@ -91,5 +96,10 @@ along with GCC; see the file COPYING3. If not see
#define STACK_CHECK_STATIC_BUILTIN 1
/* This platform supports the probing method of stack checking (RTP mode).
- 8K is reserved in the stack to propagate exceptions in case of overflow. */
+ 8K is reserved in the stack to propagate exceptions in case of overflow.
+ On 64-bit targets, we double that size. */
+#if TARGET_64BIT_DEFAULT
+#define STACK_CHECK_PROTECT 16384
+#else
#define STACK_CHECK_PROTECT 8192
+#endif
--
1.7.10.4
reply other threads:[~2017-06-27 13:45 UTC|newest]
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