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From e80a89e9446501bcaf42dc8ade8ff8a1cd0458bb Mon Sep 17 00:00:00 2001
From: Daniel Bertalan <dani@danielbertalan.dev>
Date: Thu, 10 Feb 2022 17:49:12 +0100
Subject: [PATCH] Add support for SerenityOS
Teaches the assembler, BFD, and the linker about the SerenityOS target
triple.
On x86_64, we override the default base address of non-PIE executables,
because the default (0x400000) is too close to the beginning of the
address space, and DynamicLoader often ends up allocating internal data
at that address. See commit 292398b5857d0104f7c33fdb5d79f45fe8b395dd.
---
bfd/config.bfd | 15 +++++++++++++++
gas/configure.tgt | 2 ++
ld/Makefile.am | 1 +
ld/Makefile.in | 1 +
ld/configure.tgt | 9 +++++++++
ld/emulparams/elf_x86_64_serenity.sh | 2 ++
6 files changed, 30 insertions(+)
create mode 100644 ld/emulparams/elf_x86_64_serenity.sh
diff --git a/bfd/config.bfd b/bfd/config.bfd
index cfe58247..9a10e011 100644
--- a/bfd/config.bfd
+++ b/bfd/config.bfd
@@ -277,6 +277,11 @@ case "${targ}" in
targ_selvecs="aarch64_elf64_be_vec aarch64_elf32_le_vec aarch64_elf32_be_vec arm_elf32_le_vec arm_elf32_be_vec"
want64=true
;;
+ aarch64-*-serenity*)
+ targ_defvec=aarch64_elf64_le_vec
+ targ_selvecs=
+ want64=true
+ ;;
aarch64-*-linux* | aarch64-*-netbsd*)
targ_defvec=aarch64_elf64_le_vec
targ_selvecs="aarch64_elf64_be_vec aarch64_elf32_le_vec aarch64_elf32_be_vec arm_elf32_le_vec arm_elf32_be_vec aarch64_pei_vec"
@@ -656,6 +661,11 @@ case "${targ}" in
targ_selvecs=
targ64_selvecs=x86_64_elf64_vec
;;
+ i[3-7]86-*-serenity*)
+ targ_defvec=i386_elf32_vec
+ targ_selvecs=
+ targ64_selvecs=x86_64_elf64_vec
+ ;;
#ifdef BFD64
x86_64-*-cloudabi*)
targ_defvec=x86_64_elf64_cloudabi_vec
@@ -721,6 +731,11 @@ case "${targ}" in
targ_selvecs=i386_elf32_vec
want64=true
;;
+ x86_64-*-serenity*)
+ targ_defvec=x86_64_elf64_vec
+ targ_selvecs=i386_elf32_vec
+ want64=true
+ ;;
#endif
i[3-7]86-*-lynxos*)
targ_defvec=i386_elf32_vec
diff --git a/gas/configure.tgt b/gas/configure.tgt
index 62f806bd..cfc93df9 100644
--- a/gas/configure.tgt
+++ b/gas/configure.tgt
@@ -134,6 +134,7 @@ case ${generic_target} in
aarch64*-linux-gnu_ilp32) arch=aarch64:32 ;;
esac ;;
aarch64*-*-netbsd*) fmt=elf em=nbsd;;
+ aarch64*-*-serenity*) fmt=elf ;;
alpha-*-*vms*) fmt=evax ;;
alpha-*-osf*) fmt=ecoff ;;
@@ -263,6 +264,7 @@ case ${generic_target} in
i386-*-*nt*) fmt=coff em=pe ;;
i386-*-rdos*) fmt=elf ;;
i386-*-darwin*) fmt=macho ;;
+ i386-*-serenity) fmt=elf ;;
ia16-*-elf*) fmt=elf ;;
diff --git a/ld/Makefile.am b/ld/Makefile.am
index b55a873d..760f328a 100644
--- a/ld/Makefile.am
+++ b/ld/Makefile.am
@@ -463,6 +463,7 @@ ALL_64_EMULATION_SOURCES = \
eelf_x86_64_cloudabi.c \
eelf_x86_64_fbsd.c \
eelf_x86_64_haiku.c \
+ eelf_x86_64_serenity.c \
eelf_x86_64_sol2.c \
ehppa64linux.c \
ei386pep.c \
diff --git a/ld/Makefile.in b/ld/Makefile.in
index 61e93eea..8b9ee2cf 100644
--- a/ld/Makefile.in
+++ b/ld/Makefile.in
@@ -953,6 +953,7 @@ ALL_64_EMULATION_SOURCES = \
eelf_x86_64_cloudabi.c \
eelf_x86_64_fbsd.c \
eelf_x86_64_haiku.c \
+ eelf_x86_64_serenity.c \
eelf_x86_64_sol2.c \
ehppa64linux.c \
ei386pep.c \
diff --git a/ld/configure.tgt b/ld/configure.tgt
index c7acf3f1..19982e51 100644
--- a/ld/configure.tgt
+++ b/ld/configure.tgt
@@ -59,6 +59,9 @@ aarch64-*-freebsd*) targ_emul=aarch64fbsd
aarch64-*-fuchsia*) targ_emul=aarch64elf
targ_extra_emuls="aarch64elfb armelf armelfb"
;;
+aarch64-*-serenity*) targ_emul=aarch64elf
+ targ_extra_emuls=
+ ;;
aarch64_be-*-linux-gnu_ilp32)
targ_emul=aarch64linux32b
targ_extra_libpath="aarch64linuxb aarch64linux aarch64linux32 armelfb_linux_eabi armelf_linux_eabi"
@@ -332,6 +335,9 @@ i[3-7]86-*-linux-*) targ_emul=elf_i386
i[3-7]86-*-redox*) targ_emul=elf_i386
targ_extra_emuls=elf_x86_64
;;
+i[3-7]86-*-serenity*) targ_emul=elf_i386
+ targ64_extra_emuls="elf_x86_64"
+ ;;
i[3-7]86-*-sysv[45]*) targ_emul=elf_i386
targ_extra_emuls=elf_iamcu
;;
@@ -970,6 +976,9 @@ x86_64-*-linux-*) targ_emul=elf_x86_64
x86_64-*-redox*) targ_emul=elf_x86_64
targ_extra_emuls=elf_i386
;;
+x86_64-*-serenity*) targ_emul=elf_x86_64
+ targ_extra_emuls="elf_i386"
+ ;;
x86_64-*-solaris2*) targ_emul=elf_x86_64_sol2
targ_extra_emuls="elf_x86_64 elf_i386_sol2 elf_i386_ldso elf_i386 elf_iamcu elf_l1om elf_k1om"
targ_extra_libpath=$targ_extra_emuls
|
