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linux.h (MD_FALLBACK_FRAME_STATE_FOR): Partly revert 2003-01-23 patch. 

2003-06-17  Franz Sirl  <Franz.Sirl-kernel@lauterbach.com>

	* config/rs6000/linux.h (MD_FALLBACK_FRAME_STATE_FOR): Partly revert
	2003-01-23 patch. Corrected to handle kernels with changed ucontext.

	* config/rs6000/sysv4.h (SUBTARGET_OVERRIDE_OPTIONS): Error on invalid
	-msdata=eabi usages.

	* gcc/config/rs6000/sysv4.h (USE_LIBC_1): Delete all uses.

From-SVN: r68087
This commit is contained in:
Franz Sirl 2003-06-17 15:53:35 +00:00 committed by Franz Sirl
parent b98cf05972
commit 7cf6c9279e
3 changed files with 28 additions and 31 deletions
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10
gcc/ChangeLog
View File

@ -1,3 +1,13 @@
2003-06-17 Franz Sirl <Franz.Sirl-kernel@lauterbach.com>
* config/rs6000/linux.h (MD_FALLBACK_FRAME_STATE_FOR): Partly revert
2003-01-23 patch. Corrected to handle kernels with changed ucontext.
* config/rs6000/sysv4.h (SUBTARGET_OVERRIDE_OPTIONS): Error on invalid
-msdata=eabi usages.
* gcc/config/rs6000/sysv4.h (USE_LIBC_1): Delete all uses.
2003-06-17 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
* alloc-pool.c: Don't check HAVE_LONG_DOUBLE.

23
gcc/config/rs6000/linux.h
View File

@ -93,7 +93,18 @@
#ifdef IN_LIBGCC2
#include <signal.h>
#include <sys/ucontext.h>
/* During the 2.5 kernel series the kernel ucontext was changed, but
the new layout is compatible with the old one, so we just define
and use the old one here for simplicity and compatibility. */
struct kernel_old_ucontext {
unsigned long uc_flags;
struct ucontext *uc_link;
stack_t uc_stack;
struct sigcontext_struct uc_mcontext;
sigset_t uc_sigmask;
};
enum { SIGNAL_FRAMESIZE = 64 };
#endif
@ -129,7 +140,7 @@ enum { SIGNAL_FRAMESIZE = 64 };
struct siginfo *pinfo; \
void *puc; \
struct siginfo info; \
struct ucontext uc; \
struct kernel_old_ucontext uc; \
} *rt_ = (CONTEXT)->cfa; \
sc_ = &rt_->uc.uc_mcontext; \
} \
@ -153,15 +164,9 @@ enum { SIGNAL_FRAMESIZE = 64 };
(FS)->regs.reg[LINK_REGISTER_REGNUM].loc.offset \
= (long)&(sc_->regs->link) - new_cfa_; \
\
/* The unwinder expects the IP to point to the following insn, \
whereas the kernel returns the address of the actual \
faulting insn. We store NIP+4 in an unused register slot to \
get the same result for multiple evaluation of the same signal \
frame. */ \
sc_->regs->gpr[47] = sc_->regs->nip + 4; \
(FS)->regs.reg[CR0_REGNO].how = REG_SAVED_OFFSET; \
(FS)->regs.reg[CR0_REGNO].loc.offset \
= (long)&(sc_->regs->gpr[47]) - new_cfa_; \
= (long)&(sc_->regs->nip) - new_cfa_; \
(FS)->retaddr_column = CR0_REGNO; \
goto SUCCESS; \
} while (0)

26
gcc/config/rs6000/sysv4.h
View File

@ -256,7 +256,8 @@ do { \
rs6000_sdata_name); \
} \
\
if (rs6000_sdata != SDATA_NONE && DEFAULT_ABI != ABI_V4) \
if ((rs6000_sdata != SDATA_NONE && DEFAULT_ABI != ABI_V4) \
|| (rs6000_sdata == SDATA_EABI && !TARGET_EABI)) \
{ \
rs6000_sdata = SDATA_NONE; \
error ("-msdata=%s and -mcall-%s are incompatible", \
@ -1073,21 +1074,11 @@ extern int fixuplabelno;
%{symbolic:-Bsymbolic}"
/* GNU/Linux support. */
#ifdef USE_GNULIBC_1
#define LIB_LINUX_SPEC "%{mnewlib: --start-group -llinux -lc --end-group } \
%{!mnewlib: -lc }"
#else
#define LIB_LINUX_SPEC "%{mnewlib: --start-group -llinux -lc --end-group } \
%{!mnewlib: %{shared:-lc} %{!shared: %{pthread:-lpthread } \
%{profile:-lc_p} %{!profile:-lc}}}"
#endif
#ifdef USE_GNULIBC_1
#define STARTFILE_LINUX_SPEC "\
%{!shared: %{pg:gcrt1.o%s} %{!pg:%{p:gcrt1.o%s} %{!p:crt1.o%s}}} \
%{mnewlib: ecrti.o%s} %{!mnewlib: crti.o%s} \
%{!shared:crtbegin.o%s} %{shared:crtbeginS.o%s}"
#elif defined HAVE_LD_PIE
#ifdef HAVE_LD_PIE
#define STARTFILE_LINUX_SPEC "\
%{!shared: %{pg|p:gcrt1.o%s;pie:Scrt1.o%s;:crt1.o%s}} \
%{mnewlib:ecrti.o%s;:crti.o%s} \
@ -1108,25 +1099,16 @@ extern int fixuplabelno;
%{rdynamic:-export-dynamic} \
%{!dynamic-linker:-dynamic-linker /lib/ld.so.1}}}"
#if !defined(USE_GNULIBC_1) && defined(HAVE_LD_EH_FRAME_HDR)
#if defined(HAVE_LD_EH_FRAME_HDR)
# define LINK_EH_SPEC "%{!static:--eh-frame-hdr} "
#endif
#ifdef USE_GNULIBC_1
#define CPP_OS_LINUX_SPEC "-D__unix__ -D__gnu_linux__ -D__linux__ \
%{!undef: \
%{!ansi: \
%{!std=*:-Dunix -D__unix -Dlinux -D__linux} \
%{std=gnu*:-Dunix -D__unix -Dlinux -D__linux}}} \
-Asystem=unix -Asystem=posix"
#else
#define CPP_OS_LINUX_SPEC "-D__unix__ -D__gnu_linux__ -D__linux__ \
%{!undef: \
%{!ansi: \
%{!std=*:-Dunix -D__unix -Dlinux -D__linux} \
%{std=gnu*:-Dunix -D__unix -Dlinux -D__linux}}} \
-Asystem=unix -Asystem=posix %{pthread:-D_REENTRANT}"
#endif
/* GNU/Hurd support. */
#define LIB_GNU_SPEC "%{mnewlib: --start-group -lgnu -lc --end-group } \