danielandClaude Fable 5
1f271b3ba8
Every libbfd-based native tool (objdump, as, ld, ar, nm, ...) page faulted at startup: binutils 2.43 keeps BFD's error state in _Thread_local variables, and MontaukOS has no TLS runtime (no FS-base setup, no PT_TLS handling), so the %fs:0 access in bfd_init trapped at address 0. elfedit survived only because it does not link libbfd. Patch bfd/sysdep.h to define the TLS storage macro to empty under __montauk__ (binutils has no fallback of its own; ac_cv_tls=none does not even compile). Single-threaded tools lose nothing. Confirmed on the OS: objdump -S disassembles hello.elf in the terminal. Real TLS support (FS base + PT_TLS in the ELF loader) stays on the roadmap for the GCC/libstdc++ milestone. Co-Authored-By: Claude Fable 5 <[email protected]>
66 lines
2.0 KiB
Diff
66 lines
2.0 KiB
Diff
--- a/config.sub
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+++ b/config.sub
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@@ -1768,7 +1768,7 @@
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| onefs* | tirtos* | phoenix* | fuchsia* | redox* | bme* \
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| midnightbsd* | amdhsa* | unleashed* | emscripten* | wasi* \
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| nsk* | powerunix* | genode* | zvmoe* | qnx* | emx* | zephyr* \
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- | fiwix* | mlibc* | cos* | mbr* | ironclad* )
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+ | fiwix* | mlibc* | cos* | mbr* | ironclad* | montauk* )
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;;
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# This one is extra strict with allowed versions
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sco3.2v2 | sco3.2v[4-9]* | sco5v6*)
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--- a/bfd/config.bfd
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+++ b/bfd/config.bfd
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@@ -681,6 +681,11 @@
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targ_selvecs="i386_elf32_vec iamcu_elf32_vec"
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want64=true
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;;
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+ x86_64-*-montauk*)
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+ targ_defvec=x86_64_elf64_vec
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+ targ_selvecs=i386_elf32_vec
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+ want64=true
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+ ;;
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x86_64-*-elf* | x86_64-*-rtems* | x86_64-*-fuchsia | x86_64-*-genode*)
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targ_defvec=x86_64_elf64_vec
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targ_selvecs="i386_elf32_vec iamcu_elf32_vec x86_64_elf32_vec"
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--- a/gas/configure.tgt
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+++ b/gas/configure.tgt
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@@ -229,6 +229,7 @@
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i386-*-beos*) fmt=elf ;;
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i386-*-elfiamcu) fmt=elf arch=iamcu ;;
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i386-*-elf*) fmt=elf ;;
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+ i386-*-montauk*) fmt=elf ;;
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i386-*-fuchsia*) fmt=elf ;;
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i386-*-haiku*) fmt=elf em=haiku ;;
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i386-*-genode*) fmt=elf ;;
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--- a/ld/configure.tgt
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+++ b/ld/configure.tgt
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@@ -1036,6 +1036,9 @@
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tdir_elf_i386=`echo ${targ_alias} | \
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sed -e 's/x86_64/i386/' -e 's/aout//'`
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;;
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+x86_64-*-montauk*) targ_emul=elf_x86_64
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+ targ_extra_emuls=elf_i386
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+ ;;
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x86_64-*-elf* | x86_64-*-rtems* | x86_64-*-fuchsia* | x86_64-*-genode*)
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targ_emul=elf_x86_64
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targ_extra_emuls="elf_i386 elf_iamcu elf32_x86_64"
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--- a/bfd/sysdep.h
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+++ b/bfd/sysdep.h
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@@ -27,6 +27,15 @@
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#endif
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#include "config.h"
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+
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+/* MontaukOS provides no runtime TLS yet (no FS-base setup, no PT_TLS
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+ handling in the ELF loader), so a _Thread_local access traps at
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+ %fs:0. Degrade BFD's thread-local error state to plain globals;
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+ the native tools are single-threaded. */
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+#ifdef __montauk__
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+#undef TLS
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+#define TLS
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+#endif
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#include <stdio.h>
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#ifdef HAVE_SYS_TYPES_H
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