diff options
Diffstat (limited to 'gcc/config/vms/vms.c')
| -rw-r--r-- | gcc/config/vms/vms.c | 132 |
1 files changed, 112 insertions, 20 deletions
diff --git a/gcc/config/vms/vms.c b/gcc/config/vms/vms.c index a85fb3fb209..d4ebd18730b 100644 --- a/gcc/config/vms/vms.c +++ b/gcc/config/vms/vms.c @@ -26,6 +26,8 @@ along with GCC; see the file COPYING3. If not see #include "ggc.h" #include "target.h" #include "output.h" +#include "tm.h" +#include "dwarf2out.h" /* Correlation of standard CRTL names with DECCRTL function names. */ @@ -36,19 +38,46 @@ along with GCC; see the file COPYING3. If not see /* If long pointer are enabled, use _NAME64 instead. */ #define VMS_CRTL_64 (1 << 1) -/* Use tNAME instead. To be applied after the previous rule. */ -#define VMS_CRTL_FLOAT (1 << 2) +/* Prepend s/f before the name. To be applied after the previous rule. + use 's' for S float, 'f' for IEEE 32. */ +#define VMS_CRTL_FLOAT32 (1 << 2) -/* Prepend __bsd44__ before the name. To be applied after the P64 - rule. */ -#define VMS_CRTL_BSD44 (1 << 3) +/* Prepend t/g/d before the name. To be applied after the previous rule. + use 'g' for VAX G float, 'd' for VAX D float, 't' for IEEE 64. */ +#define VMS_CRTL_FLOAT64 (1 << 3) + +/* Prepend d before the name, only if using VAX fp. */ +#define VMS_CRTL_FLOAT64_VAXD (1 << 4) /* Prepend x before the name for if 128 bit long doubles are enabled. This concern mostly 'printf'-like functions. */ -#define VMS_CRTL_LDBL (1 << 4) +#define VMS_CRTL_FLOAT128 (1 << 5) + +/* From xxx, create xxx, xxxf, xxxl using MATH$XXX_T, MATH$XXX_S + and MATH$XXX{_X} if DPML is used. */ +#define VMS_CRTL_DPML (1 << 6) -/* Prepend ga_ for global data. */ -#define VMS_CRTL_GLOBAL (1 << 5) +/* Together with DPML, it means that all variant (ie xxx, xxxf and xxxl) are + overridden by decc. Without DPML, it means this is a variant (ie xxxf + or xxxl) of a function. */ +#define VMS_CRTL_NODPML (1 << 7) + +/* Prepend __bsd44_ before the name. To be applied after the P64 + rule. */ +#define VMS_CRTL_BSD44 (1 << 8) + +/* Define only in 32 bits mode, as this has no 64 bit variants. + Concerns getopt/getarg. */ +#define VMS_CRTL_32ONLY (1 << 9) + +/* GLobal data prefix (ga_, gl_...) */ +#define VMS_CRTL_G_MASK (7 << 10) +#define VMS_CRTL_G_NONE (0 << 10) +#define VMS_CRTL_GA (1 << 10) +#define VMS_CRTL_GL (2 << 10) + +/* Append '_2'. Not compatible with 64. */ +#define VMS_CRTL_FLOATV2 (1 << 13) struct vms_crtl_name { @@ -84,14 +113,14 @@ vms_add_crtl_xlat (const char *name, size_t nlen, { tree targ; + /* printf ("vms crtl: %.*s -> %.*s\n", nlen, name, id_len, id_str); */ + targ = get_identifier_with_length (name, nlen); gcc_assert (!IDENTIFIER_TRANSPARENT_ALIAS (targ)); IDENTIFIER_TRANSPARENT_ALIAS (targ) = 1; TREE_CHAIN (targ) = get_identifier_with_length (id_str, id_len); VEC_safe_push (tree, gc, aliases_id, targ); - - /* printf ("vms: %s (%p) -> %.*s\n", name, targ, id_len, id_str); */ } /* Do VMS specific stuff on builtins: disable the ones that are not @@ -116,7 +145,48 @@ vms_patch_builtins (void) const struct vms_crtl_name *n = &vms_crtl_names[i]; char res[VMS_CRTL_MAXLEN + 3 + 9 + 1 + 1]; int rlen; - int nlen; + int nlen = strlen (n->name); + + /* Discard 32ONLY if using 64 bit pointers. */ + if ((n->flags & VMS_CRTL_32ONLY) + && flag_vms_pointer_size == VMS_POINTER_SIZE_64) + continue; + + /* Handle DPML unless overridden by decc. */ + if ((n->flags & VMS_CRTL_DPML) + && !(n->flags & VMS_CRTL_NODPML)) + { + const char *p; + char alt[VMS_CRTL_MAXLEN + 3]; + + memcpy (res, "MATH$", 5); + rlen = 5; + for (p = n->name; *p; p++) + res[rlen++] = TOUPPER (*p); + res[rlen++] = '_'; + res[rlen++] = 'T'; + + /* Double version. */ + if (!(n->flags & VMS_CRTL_FLOAT64)) + vms_add_crtl_xlat (n->name, nlen, res, rlen); + + /* Float version. */ + res[rlen - 1] = 'S'; + memcpy (alt, n->name, nlen); + alt[nlen] = 'f'; + vms_add_crtl_xlat (alt, nlen + 1, res, rlen); + + /* Long double version. */ + res[rlen - 1] = (LONG_DOUBLE_TYPE_SIZE == 128 ? 'X' : 'T'); + alt[nlen] = 'l'; + vms_add_crtl_xlat (alt, nlen + 1, res, rlen); + + if (!(n->flags & (VMS_CRTL_FLOAT32 | VMS_CRTL_FLOAT64))) + continue; + } + + if (n->flags & VMS_CRTL_FLOAT64_VAXD) + continue; /* Add the dec-c prefix. */ memcpy (res, "decc$", 5); @@ -124,27 +194,49 @@ vms_patch_builtins (void) if (n->flags & VMS_CRTL_BSD44) { - memcpy (res + rlen, "__bsd44__", 9); - rlen += 9; + memcpy (res + rlen, "__bsd44_", 8); + rlen += 8; } - if (n->flags & VMS_CRTL_GLOBAL) + if ((n->flags & VMS_CRTL_G_MASK) != VMS_CRTL_G_NONE) { - memcpy (res + rlen, "ga_", 3); - rlen += 3; + res[rlen++] = 'g'; + switch (n->flags & VMS_CRTL_G_MASK) + { + case VMS_CRTL_GA: + res[rlen++] = 'a'; + break; + case VMS_CRTL_GL: + res[rlen++] = 'l'; + break; + default: + gcc_unreachable (); + } + res[rlen++] = '_'; } - if (n->flags & VMS_CRTL_FLOAT) + if (n->flags & VMS_CRTL_FLOAT32) + res[rlen++] = 'f'; + + if (n->flags & VMS_CRTL_FLOAT64) res[rlen++] = 't'; - if (n->flags & VMS_CRTL_LDBL) + if ((n->flags & VMS_CRTL_FLOAT128) && LONG_DOUBLE_TYPE_SIZE == 128) res[rlen++] = 'x'; - nlen = strlen (n->name); memcpy (res + rlen, n->name, nlen); if ((n->flags & VMS_CRTL_64) == 0) - vms_add_crtl_xlat (n->name, nlen, res, rlen + nlen); + { + rlen += nlen; + + if (n->flags & VMS_CRTL_FLOATV2) + { + res[rlen++] = '_'; + res[rlen++] = '2'; + } + vms_add_crtl_xlat (n->name, nlen, res, rlen); + } else { char alt[VMS_CRTL_MAXLEN + 3]; |