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https://anongit.gentoo.org/git/repo/gentoo.git
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145 lines
4.6 KiB
Diff
145 lines
4.6 KiB
Diff
From c8f02d5d170c5373eeef98d6f6354ae7c726e29b Mon Sep 17 00:00:00 2001
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From: jj <john-git@ofjj.net>
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Date: Mon, 11 Dec 2023 19:22:30 +0100
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Subject: [PATCH] dynldr: ruby3.3 compat
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---
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metasm/dynldr.rb | 64 ++++++++++++++++++++++++++++--------------------
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1 file changed, 37 insertions(+), 27 deletions(-)
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diff --git a/metasm/dynldr.rb b/metasm/dynldr.rb
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index 74bf786f2..a7b807703 100644
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--- a/metasm/dynldr.rb
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+++ b/metasm/dynldr.rb
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@@ -9,7 +9,7 @@
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module Metasm
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class DynLdr
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- # basic C defs for ruby internals - 1.8 and 1.9 compat - x86/x64
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+ # basic C defs for ruby internals - 1.8, 1.9, 3.3 compat - x86/x64
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RUBY_H = <<EOS
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#line #{__LINE__}
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typedef uintptr_t VALUE;
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@@ -26,7 +26,7 @@ class DynLdr
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struct rb_string_t {
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VALUE flags;
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VALUE klass;
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- VALUE len;
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+ long len;
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char *ptr;
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union {
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long capa;
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@@ -38,7 +38,7 @@ class DynLdr
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struct rb_array_t {
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VALUE flags;
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VALUE klass;
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- VALUE len;
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+ long len;
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union {
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long capa;
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VALUE shared;
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@@ -52,41 +52,45 @@ class DynLdr
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extern VALUE *rb_eRuntimeError __attribute__((import));
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extern VALUE *rb_eArgError __attribute__((import));
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-// allows generating a ruby1.9 dynldr.so from ruby1.8
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-#ifndef DYNLDR_RUBY_19
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-#define DYNLDR_RUBY_19 #{RUBY_VERSION >= '1.9' ? 1 : 0}
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-#endif
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-
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#if #{RUBY_VERSION >= '2.0' ? 1 : 0}
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// flonums. WHY?
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// also breaks Qtrue/Qnil
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#define rb_float_new rb_float_new_in_heap
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#endif
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-#if DYNLDR_RUBY_19
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+#if #{RUBY_VERSION >= '1.9' ? 0 : 1}
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+ #define T_STRING 0x07
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+ #define T_ARRAY 0x09
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+ #define T_FIXNUM 0x0a
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+ #define T_MASK 0x3f
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+ #define STR_PTR(o) (RString(o)->ptr)
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+ #define STR_LEN(o) (RString(o)->len)
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+ #define ARY_PTR(o) (RArray(o)->ptr)
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+ #define ARY_LEN(o) (RArray(o)->len)
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+#else
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#define T_STRING 0x05
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#define T_ARRAY 0x07
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#define T_FIXNUM 0x15
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#define T_MASK 0x1f
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#define RSTRING_NOEMBED (1<<13)
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+#if #{RUBY_VERSION >= '3.2' ? 0 : 1}
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+ // ruby1.9 .. 3.2
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#define STR_PTR(o) ((RString(o)->flags & RSTRING_NOEMBED) ? RString(o)->ptr : (char*)&RString(o)->len)
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#define STR_LEN(o) ((RString(o)->flags & RSTRING_NOEMBED) ? RString(o)->len : (RString(o)->flags >> 14) & 0x1f)
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+#else
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+ // ruby3.2+: len is used for NOEMBED strings, and the str buffer starts right after len (off 8+8+4 on win64)
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+ // TODO find a better way to test, not depending on the compiling interpreter ?
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+ #define STR_PTR(o) ((RString(o)->flags & RSTRING_NOEMBED) ? RString(o)->ptr : (((char*)&RString(o)->len) + sizeof(long)))
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+ #define STR_LEN(o) RString(o)->len
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+#endif
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#define RARRAY_EMBED (1<<13)
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#define ARY_PTR(o) ((RArray(o)->flags & RARRAY_EMBED) ? (VALUE*)&RArray(o)->len : RArray(o)->ptr)
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- #define ARY_LEN(o) ((RArray(o)->flags & RARRAY_EMBED) ? ((RArray(o)->flags >> 15) & 3) : RArray(o)->len)
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-#else
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- #define T_STRING 0x07
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- #define T_ARRAY 0x09
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- #define T_FIXNUM 0x0a
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- #define T_MASK 0x3f
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- #define STR_PTR(o) (RString(o)->ptr)
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- #define STR_LEN(o) (RString(o)->len)
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- #define ARY_PTR(o) (RArray(o)->ptr)
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- #define ARY_LEN(o) (RArray(o)->len)
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+ // RVARGC uses more bits, should be 0/unused in earlier ruby versions
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+ #define ARY_LEN(o) ((RArray(o)->flags & RARRAY_EMBED) ? ((RArray(o)->flags >> 15) & 0xff) : RArray(o)->len)
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#endif
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-#if #{nil.object_id == 4 ? 1 : 0}
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-// ruby1.8
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+#if #{(RUBY_VERSION < '3.0' and nil.object_id == 4) ? 1 : 0}
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+// ruby1.8 (Qnil changed in 1.9 and back in 3.3
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#define TYPE(x) (((VALUE)(x) & 1) ? T_FIXNUM : (((VALUE)(x) < 0x07) || (((VALUE)(x) & 0xf) == 0xe)) ? 0x40 : RString(x)->flags & T_MASK)
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#else
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// ruby2.0+, USE_FLONUM, world is hell
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@@ -138,7 +142,6 @@ class DynLdr
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#define os_load_sym_ord(l, s) 0U
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#endif
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-extern int *cb_ret_table;
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extern void *callback_handler;
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extern void *callback_id_0;
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extern void *callback_id_1;
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@@ -207,13 +210,12 @@ class DynLdr
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else
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rb_raise(*rb_eArgError, "Invalid lib");
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- if (TYPE(func) != T_STRING && TYPE(func) != T_FIXNUM)
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- rb_raise(*rb_eArgError, "Invalid func");
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-
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- if (TYPE(func) == T_FIXNUM)
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+ if (TYPE(func) == T_STRING)
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+ p = os_load_sym(h, STR_PTR(func));
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+ else if (TYPE(func) == T_FIXNUM)
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p = os_load_sym_ord(h, VAL2INT(func));
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else
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- p = os_load_sym(h, STR_PTR(func));
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+ rb_raise(*rb_eArgError, "Invalid func");
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return INT2VAL(p);
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}
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@@ -354,6 +356,14 @@ class DynLdr
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}
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#endif
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+unsigned long long ruby_abi_version(void) __attribute__((export))
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+{
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+ // mandatory to be loadable in a dev ruby build
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+ // TODO find expected value in current interpreter ?
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+ return 0;
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+ // disable the value check interpreter side: #{ENV['RUBY_ABI_CHECK'] = '0'}
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+}
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+
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int Init_dynldr(void) __attribute__((export_as(Init_<insertfilenamehere>))) // to patch before parsing to match the .so name
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{
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dynldr = rb_const_get(rb_const_get(*rb_cObject, rb_intern("Metasm")), rb_intern("DynLdr"));
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