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| author | Mike Stump <mrs@gcc.gnu.org> | 1997-06-06 23:18:36 +0000 |
|---|---|---|
| committer | Mike Stump <mrs@gcc.gnu.org> | 1997-06-06 23:18:36 +0000 |
| commit | 28174a1465662ce918c1625e33fcaf5a93457827 (patch) | |
| tree | e1ac1e967ef794bea51ee8cff6e71c8cf9964543 /gcc | |
| parent | 7ec189f2ec5af35774c5bda252dd09fc61698f71 (diff) | |
| download | gcc-28174a1465662ce918c1625e33fcaf5a93457827.zip gcc-28174a1465662ce918c1625e33fcaf5a93457827.tar.gz gcc-28174a1465662ce918c1625e33fcaf5a93457827.tar.bz2 | |
libgcc2.c (__eh_ffetmnpc): Add support for machines that cannot access globals after throw's epilogue when...
* libgcc2.c (__eh_ffetmnpc): Add support for machines that cannot
access globals after throw's epilogue when -fno-sjlj-exceptions is
used.
* rs6000.c (DONT_ACCESS_GBLS_AFTER_EPILOGUE): Likewise.
* mips.h (DONT_ACCESS_GBLS_AFTER_EPILOGUE): Likewise.
(INITIAL_ELIMINATION_OFFSET): Fix RETURN_ADDRESS_POINTER_REGNUM
for 64 bit words, with 32 bit pointers and variable endianness.
Fixes throwing across shared library lines (useful at times on mips and rs6000)
From-SVN: r14168
Diffstat (limited to 'gcc')
| -rw-r--r-- | gcc/config/mips/mips.h | 9 | ||||
| -rw-r--r-- | gcc/config/rs6000/rs6000.h | 4 | ||||
| -rw-r--r-- | gcc/libgcc2.c | 10 |
3 files changed, 22 insertions, 1 deletions
diff --git a/gcc/config/mips/mips.h b/gcc/config/mips/mips.h index 3ae6e9a..f1e985a 100644 --- a/gcc/config/mips/mips.h +++ b/gcc/config/mips/mips.h @@ -1966,7 +1966,9 @@ extern struct mips_frame_info current_frame_info; else if ((FROM) == RETURN_ADDRESS_POINTER_REGNUM \ && ((TO) == FRAME_POINTER_REGNUM \ || (TO) == STACK_POINTER_REGNUM)) \ - (OFFSET) = current_frame_info.gp_sp_offset; \ + (OFFSET) = current_frame_info.gp_sp_offset \ + + ((UNITS_PER_WORD - (POINTER_SIZE / BITS_PER_UNIT)) \ + * (BYTES_BIG_ENDIAN != 0)); \ else \ abort (); \ } @@ -4047,3 +4049,8 @@ while (0) #define NO_BUILTIN_PTRDIFF_TYPE #define PTRDIFF_TYPE (TARGET_LONG64 ? "long int" : "int") #endif + +/* See mips_expand_prologue's use of loadgp for when this should be + true. */ + +#define DONT_ACCESS_GBLS_AFTER_EPILOGUE (TARGET_ABICALLS && mips_abi != ABI_32) diff --git a/gcc/config/rs6000/rs6000.h b/gcc/config/rs6000/rs6000.h index 3071726..f469061 100644 --- a/gcc/config/rs6000/rs6000.h +++ b/gcc/config/rs6000/rs6000.h @@ -3126,3 +3126,7 @@ extern int rs6000_valid_type_attribute_p (); extern void rs6000_set_default_type_attributes (); extern struct rtx_def *rs6000_dll_import_ref (); extern struct rtx_def *rs6000_longcall_ref (); + +/* See nonlocal_goto_receiver for when this must be set. */ + +#define DONT_ACCESS_GBLS_AFTER_EPILOGUE (TARGET_TOC && TARGET_MINIMAL_TOC) diff --git a/gcc/libgcc2.c b/gcc/libgcc2.c index 0d53b10..c32a7e0 100644 --- a/gcc/libgcc2.c +++ b/gcc/libgcc2.c @@ -3436,6 +3436,16 @@ __throw () void *__eh_pc; +/* See expand_builtin_throw for details. */ + +void **__eh_ffetmnpc () { + static void *buf[2] = { + &__find_first_exception_table_match, + &__eh_pc + }; + return buf; +} + void __empty () { |