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change handling to emit baserel offsets based on sections

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This commit is contained in:
bebbo 2022-04-29 17:01:49 +02:00
parent d129e0d61a
commit efc9376c56
3 changed files with 39 additions and 33 deletions
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34
gcc/bbb-baserel.c
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@ -101,10 +101,7 @@ namespace
if (!decl)
return 0;
// only handle VAR non CONST
if (decl->base.code != VAR_DECL || decl->base.code == CONST_DECL)
return 0;
if (decl->base.constant_flag || decl->base.readonly_flag)
if (decl->base.code != VAR_DECL)
return 0;
// a section means: a4 unless the section is ".datachip" ".datafast" ".datafar"
@ -115,10 +112,31 @@ namespace
|| 0 == strcmp(secname, ".datafar")))
return 0;
// normal constants end up in text.
section * sec = get_variable_section(decl, false);
if ( (sec->common.flags & SECTION_WRITE) == 0)
return 0;
if (secname == 0)
{
if (decl->base.constant_flag || decl->base.readonly_flag)
return 0;
// normal constants end up in text.
if (TREE_READONLY (decl))
return 0;
tree type = decl->decl_minimal.common.typed.type;
if (type->base.code == ARRAY_TYPE)
type = type->typed.type;
if (type->base.readonly_flag)
return 0;
}
else
if (0 == strcmp(".text", secname))
return 0;
if (secname == 0 || strcmp(".data", secname))
{
section * sec = get_variable_section(decl, false);
if ( (sec->common.flags & SECTION_WRITE) == 0)
return 0;
}
// if (decl)
// printf("%s: %8x %d\n", decl->decl_minimal.name->identifier.id.str, sec ? sec->common.flags : 0, ispic);

37
gcc/config/m68k/m68k.c
View File

@ -7694,33 +7694,20 @@ m68k_select_section (tree decl, int reloc ATTRIBUTE_UNUSED,
{
if (decl->base.code == VAR_DECL)
{
// extern void debug_generic_expr(tree);
// debug_generic_expr(decl);
// fprintf(stderr, "%d: c=%d ", decl->base.code, decl->base.constant_flag || decl->base.readonly_flag);
if (decl->base.constant_flag || decl->base.readonly_flag)
{
// fprintf(stderr, "->text1\n");
return text_section;
}
return text_section;
// char const * secname = DECL_SECTION_NAME(decl);
// if (secname == 0
// && ((decl->decl_minimal.common.typed.type->base.code == ARRAY_TYPE &&
// (
//// decl->decl_minimal.common.typed.type->typed.type->base.readonly_flag
//// ||
// decl->decl_minimal.common.typed.type->typed.type->base.constant_flag
// ))
// || (decl->decl_minimal.common.typed.type->base.code == RECORD_TYPE &&
// (decl->decl_minimal.common.typed.type->base.readonly_flag
// || decl->decl_minimal.common.typed.type->base.constant_flag))))
// {
// fprintf(stderr, "->text\n");
// return text_section;
// }
// fprintf(stderr, "->data\n");
return data_section;
char const * secname = DECL_SECTION_NAME(decl);
if (secname == 0)
{
tree type = decl->decl_minimal.common.typed.type;
if (type->base.code == ARRAY_TYPE)
type = type->typed.type;
if (type->base.readonly_flag)
return text_section;
return data_section;
}
}
return default_select_section (decl, reloc, align);

1
gcc/config/m68k/m68kamigaos.h
View File

@ -262,6 +262,7 @@ amiga_declare_object = 0
builtin_define ("__chip=__attribute__((__chip__))"); \
builtin_define ("__fast=__attribute__((__fast__))"); \
builtin_define ("__far=__attribute__((__far__))"); \
builtin_define ("__near=__attribute__((section(\".data\")))"); \
builtin_define ("__saveds=__attribute__((__saveds__))"); \
builtin_define ("__interrupt=__attribute__((__interrupt__))"); \
builtin_define ("__stackext=__attribute__((__stackext__))"); \