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| author | Richard Stallman <rms@gnu.org> | 1992-03-30 01:47:51 +0000 |
|---|---|---|
| committer | Richard Stallman <rms@gnu.org> | 1992-03-30 01:47:51 +0000 |
| commit | 0007bde5b532215e685d791edf9b5bd06ba75fdd (patch) | |
| tree | 85d450a55ca661daa2e878d01280228057ca0a8d | |
| parent | b91c37569d6a5c3b32eec90c0617d311d3fbac6a (diff) | |
| download | gcc-0007bde5b532215e685d791edf9b5bd06ba75fdd.zip gcc-0007bde5b532215e685d791edf9b5bd06ba75fdd.tar.gz gcc-0007bde5b532215e685d791edf9b5bd06ba75fdd.tar.bz2 | |
entered into RCS
From-SVN: r629
| -rw-r--r-- | gcc/config/vax/vms.h | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/gcc/config/vax/vms.h b/gcc/config/vax/vms.h index 8b86974..8d46331 100644 --- a/gcc/config/vax/vms.h +++ b/gcc/config/vax/vms.h @@ -32,6 +32,8 @@ the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */ #undef TARGET_DEFAULT #undef CALL_USED_REGISTERS #undef MAYBE_VMS_FUNCTION_PROLOGUE +#undef FUNCTION_PROLOGUE +#undef STARTING_FRAME_OFFSET /* Predefine this in CPP because VMS limits the size of command options and GNU CPP is not used on VMS except with GNU C. */ @@ -59,6 +61,26 @@ the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */ #define CALL_USED_REGISTERS {1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 1} +/* We redefine this because there is a hidden variable on the stack + that VAXC$ESTABLISH uses. We just need to add four bytes to whatever + gcc thinks that we need. Similarily, we need to move all local variables + down 4 bytes in the stack. */ + +#define STARTING_FRAME_OFFSET -4 + +#define FUNCTION_PROLOGUE(FILE, SIZE) \ +{ register int regno; \ + register int mask = 0; \ + register int newsize = SIZE + 4; \ + extern char call_used_regs[]; \ + for (regno = 0; regno < FIRST_PSEUDO_REGISTER; regno++) \ + if (regs_ever_live[regno] && !call_used_regs[regno]) \ + mask |= 1 << regno; \ + fprintf (FILE, "\t.word 0x%x\n", mask); \ + MAYBE_VMS_FUNCTION_PROLOGUE(FILE) \ + if (newsize >= 64) fprintf (FILE, "\tmovab %d(sp),sp\n", -newsize);\ + else fprintf (FILE, "\tsubl2 $%d,sp\n", newsize); } + #define __MAIN_NAME " main (" /* * The MAYBE_VMS_FUNCTION_PROLOGUE macro works for both gcc and g++. It |