mirror of git://gcc.gnu.org/git/gcc.git
[multiple changes]
2014-07-29 Doug Rupp <rupp@adacore.com> * sigtramp-armvxw.c: Enhance to handle RTP trampolining. * init.c: Remove guard on sigtramp for ARM VxWorks RTP. 2014-07-29 Vincent Celier <celier@adacore.com> * switch-c.adb (Scan_Front_End_Switches): Do not fail when two runtime directorie specified with two switches --RTS= designate the same directory, even when there are no literarily the same. 2014-07-29 Robert Dewar <dewar@adacore.com> * gnat_ugn.texi: Minor documentation clarification. * switch-c.adb: Minor reformatting. From-SVN: r213187
This commit is contained in:
Arnaud Charlet
parent
24d14b918a
commit
3808a9c729
|
|
@ -1,3 +1,19 @@
|
|||
2014-07-29 Doug Rupp <rupp@adacore.com>
|
||||
|
||||
* sigtramp-armvxw.c: Enhance to handle RTP trampolining.
|
||||
* init.c: Remove guard on sigtramp for ARM VxWorks RTP.
|
||||
|
||||
2014-07-29 Vincent Celier <celier@adacore.com>
|
||||
|
||||
* switch-c.adb (Scan_Front_End_Switches): Do not fail when two
|
||||
runtime directorie specified with two switches --RTS= designate
|
||||
the same directory, even when there are no literarily the same.
|
||||
|
||||
2014-07-29 Robert Dewar <dewar@adacore.com>
|
||||
|
||||
* gnat_ugn.texi: Minor documentation clarification.
|
||||
* switch-c.adb: Minor reformatting.
|
||||
|
||||
2014-07-29 Robert Dewar <dewar@adacore.com>
|
||||
|
||||
* sem_prag.adb (Analyze_Pragma, case Allow_Integer_Address):
|
||||
|
|
|
|||
|
|
@ -8567,8 +8567,8 @@ objects with pragma Initialize_Scalars.
|
|||
The @var{xxx} ^string specified with the switch^option^ may be either
|
||||
@itemize @bullet
|
||||
@item ``@option{^in^INVALID^}'' requesting an invalid value where possible
|
||||
@item ``@option{^lo^LOW^}'' for the lowest possible value
|
||||
@item ``@option{^hi^HIGH^}'' for the highest possible value
|
||||
@item ``@option{^lo^LOW^}'' for the lowest possible value (all 0 bits)
|
||||
@item ``@option{^hi^HIGH^}'' for the highest possible value (all 1 bits)
|
||||
@item ``@option{@var{xx}}'' for a value consisting of repeated bytes with the
|
||||
value @code{16#@var{xx}#} (i.e., @var{xx} is a string of two hexadecimal digits).
|
||||
@end itemize
|
||||
|
|
|
|||
|
|
@ -1703,7 +1703,9 @@ __gnat_install_handler ()
|
|||
#include <signal.h>
|
||||
#include <taskLib.h>
|
||||
|
||||
#ifndef __RTP__
|
||||
#ifdef __RTP__
|
||||
#include <base/b_ucontext_t.h>
|
||||
#else
|
||||
#include <intLib.h>
|
||||
#include <iv.h>
|
||||
#endif
|
||||
|
|
@ -1911,7 +1913,7 @@ __gnat_error_handler (int sig, siginfo_t *si, void *sc)
|
|||
sigdelset (&mask, sig);
|
||||
sigprocmask (SIG_SETMASK, &mask, NULL);
|
||||
|
||||
#if (defined (__ARMEL__) || defined (__PPC__)) && defined(_WRS_KERNEL)
|
||||
#if defined (__ARMEL__) || (defined (__PPC__) && defined (_WRS_KERNEL))
|
||||
/* On PowerPC, kernel mode, we process signals through a Call Frame Info
|
||||
trampoline, voiding the need for myriads of fallback_frame_state
|
||||
variants in the ZCX runtime. We have no simple way to distinguish ZCX
|
||||
|
|
|
|||
|
|
@ -38,7 +38,12 @@
|
|||
|
||||
#include <vxWorks.h>
|
||||
#include <arch/../regs.h>
|
||||
#ifndef __RTP__
|
||||
#include <sigLib.h>
|
||||
#else
|
||||
#include <signal.h>
|
||||
#include <base/b_ucontext_t.h>
|
||||
#endif
|
||||
|
||||
/* ----------------------
|
||||
-- General comments --
|
||||
|
|
@ -47,29 +52,29 @@
|
|||
Stubs are generated from toplevel asms and .cfi directives, much simpler
|
||||
to use and check for correctness than manual encodings of CFI byte
|
||||
sequences. The general idea is to establish CFA as sigcontext->sc_pregs
|
||||
and state where to find the registers as offsets from there.
|
||||
(for DKM) and mcontext (for RTP) and state where to find the registers as
|
||||
offsets from there.
|
||||
|
||||
As of today, we support a stub providing CFI info for common
|
||||
registers (GPRs, LR, ...). We might need variants with support for floating
|
||||
point or altivec registers as well at some point.
|
||||
|
||||
Checking which variant should apply and getting at sc_pregs is simpler
|
||||
to express in C (we can't use offsetof in toplevel asms and hardcoding
|
||||
constants is not workable with the flurry of VxWorks variants), so this
|
||||
is the choice for our toplevel interface.
|
||||
Checking which variant should apply and getting at sc_pregs / mcontext
|
||||
is simpler to express in C (we can't use offsetof in toplevel asms and
|
||||
hardcoding constants is not workable with the flurry of VxWorks variants),
|
||||
so this is the choice for our toplevel interface.
|
||||
|
||||
Note that the registers we "restore" here are those to which we have
|
||||
direct access through the system sigcontext structure, which includes
|
||||
only a partial set of the non-volatiles ABI-wise. */
|
||||
|
||||
/* -----------------------------------------
|
||||
-- Protypes for our internal asm stubs --
|
||||
-----------------------------------------
|
||||
/* -------------------------------------------
|
||||
-- Prototypes for our internal asm stubs --
|
||||
-------------------------------------------
|
||||
|
||||
SC_PREGS is always expected to be SIGCONTEXT->sc_pregs. Eventhough our
|
||||
symbols will remain local, the prototype claims "extern" and not
|
||||
"static" to prevent compiler complaints about a symbol used but never
|
||||
defined. */
|
||||
Eventhough our symbols will remain local, the prototype claims "extern"
|
||||
and not "static" to prevent compiler complaints about a symbol used but
|
||||
never defined. */
|
||||
|
||||
/* sigtramp stub providing CFI info for common registers. */
|
||||
|
||||
|
|
@ -91,9 +96,17 @@ void __gnat_sigtramp (int signo, void *si, void *sc,
|
|||
void __gnat_sigtramp (int signo, void *si, void *sc,
|
||||
__sigtramphandler_t * handler)
|
||||
{
|
||||
#ifdef __RTP__
|
||||
mcontext_t *mcontext = &((ucontext_t *) sc)->uc_mcontext;
|
||||
|
||||
/* Pass MCONTEXT in the fifth position so that the assembly code can find
|
||||
it at the same stack location or in the same register as SC_PREGS. */
|
||||
__gnat_sigtramp_common (signo, si, mcontext, handler, mcontext);
|
||||
#else
|
||||
struct sigcontext * sctx = (struct sigcontext *) sc;
|
||||
|
||||
__gnat_sigtramp_common (signo, si, sctx, handler, sctx->sc_pregs);
|
||||
#endif
|
||||
}
|
||||
|
||||
|
||||
|
|
@ -199,7 +212,7 @@ TCR("# Allocate frame and save the non-volatile") \
|
|||
TCR("# registers we're going to modify") \
|
||||
TCR("mov ip, sp") \
|
||||
TCR("stmfd sp!, {r"S(CFA_REG)", fp, ip, lr, pc}") \
|
||||
TCR("# Setup CFA_REG = sc_pregs, that we'll retrieve as our CFA value") \
|
||||
TCR("# Setup CFA_REG = context, which we'll retrieve as our CFA value") \
|
||||
TCR("ldr r"S(CFA_REG)", [ip]") \
|
||||
TCR("") \
|
||||
TCR("# Call the real handler. The signo, siginfo and sigcontext") \
|
||||
|
|
|
|||
|
|
@ -38,6 +38,7 @@ with Warnsw; use Warnsw;
|
|||
|
||||
with Ada.Unchecked_Deallocation;
|
||||
with System.WCh_Con; use System.WCh_Con;
|
||||
with System.OS_Lib;
|
||||
|
||||
package body Switch.C is
|
||||
|
||||
|
|
@ -207,16 +208,33 @@ package body Switch.C is
|
|||
or else Switch_Chars (Ptr + 3) /= '='
|
||||
then
|
||||
Osint.Fail ("missing path for --RTS");
|
||||
|
||||
else
|
||||
-- Check that this is the first time --RTS is specified or if
|
||||
-- it is not the first time, the same path has been specified.
|
||||
declare
|
||||
Runtime_Dir : String_Access;
|
||||
|
||||
begin
|
||||
if System.OS_Lib.Is_Absolute_Path
|
||||
(Switch_Chars (Ptr + 4 .. Max))
|
||||
then
|
||||
Runtime_Dir :=
|
||||
new String'
|
||||
(System.OS_Lib.Normalize_Pathname
|
||||
(Switch_Chars (Ptr + 4 .. Max)));
|
||||
|
||||
else
|
||||
Runtime_Dir :=
|
||||
new String'(Switch_Chars (Ptr + 4 .. Max));
|
||||
end if;
|
||||
|
||||
-- Check that this is the first time --RTS is specified
|
||||
-- or if it is not the first time, the same path has been
|
||||
-- specified.
|
||||
|
||||
if RTS_Specified = null then
|
||||
RTS_Specified := new String'(Switch_Chars (Ptr + 4 .. Max));
|
||||
RTS_Specified := Runtime_Dir;
|
||||
|
||||
elsif
|
||||
RTS_Specified.all /= Switch_Chars (Ptr + 4 .. Max)
|
||||
then
|
||||
elsif RTS_Specified.all /= Runtime_Dir.all then
|
||||
Osint.Fail ("--RTS cannot be specified multiple times");
|
||||
end if;
|
||||
|
||||
|
|
@ -226,12 +244,10 @@ package body Switch.C is
|
|||
Opt.RTS_Switch := True;
|
||||
|
||||
RTS_Src_Path_Name :=
|
||||
Get_RTS_Search_Dir
|
||||
(Switch_Chars (Ptr + 4 .. Max), Include);
|
||||
Get_RTS_Search_Dir (Runtime_Dir.all, Include);
|
||||
|
||||
RTS_Lib_Path_Name :=
|
||||
Get_RTS_Search_Dir
|
||||
(Switch_Chars (Ptr + 4 .. Max), Objects);
|
||||
Get_RTS_Search_Dir (Runtime_Dir.all, Objects);
|
||||
|
||||
if RTS_Src_Path_Name /= null
|
||||
and then RTS_Lib_Path_Name /= null
|
||||
|
|
@ -244,17 +260,18 @@ package body Switch.C is
|
|||
elsif RTS_Src_Path_Name = null
|
||||
and then RTS_Lib_Path_Name = null
|
||||
then
|
||||
Osint.Fail ("RTS path not valid: missing " &
|
||||
"adainclude and adalib directories");
|
||||
Osint.Fail ("RTS path not valid: missing "
|
||||
& "adainclude and adalib directories");
|
||||
|
||||
elsif RTS_Src_Path_Name = null then
|
||||
Osint.Fail ("RTS path not valid: missing " &
|
||||
"adainclude directory");
|
||||
Osint.Fail ("RTS path not valid: missing "
|
||||
& "adainclude directory");
|
||||
|
||||
elsif RTS_Lib_Path_Name = null then
|
||||
Osint.Fail ("RTS path not valid: missing " &
|
||||
"adalib directory");
|
||||
Osint.Fail ("RTS path not valid: missing "
|
||||
& "adalib directory");
|
||||
end if;
|
||||
end;
|
||||
end if;
|
||||
|
||||
-- There are no other switches not starting with -gnat
|
||||
|
|
|
|||
Loading…
Reference in New Issue