From 9bfd5652e865505ae73f5ae3ba70f384d7418e84 Mon Sep 17 00:00:00 2001
From: Felix Morgner <felix.morgner@ost.ch>
Date: Mon, 14 Jul 2025 13:07:01 +0000
Subject: build: upgrade x86-64 toolchain

---
 cmake/Platforms/x86_64.cmake | 78 ++++++++++++++++++++++++++++++--------------
 1 file changed, 54 insertions(+), 24 deletions(-)

(limited to 'cmake')

diff --git a/cmake/Platforms/x86_64.cmake b/cmake/Platforms/x86_64.cmake
index e0518b5..29af020 100644
--- a/cmake/Platforms/x86_64.cmake
+++ b/cmake/Platforms/x86_64.cmake
@@ -1,35 +1,65 @@
-execute_process(COMMAND "x86_64-pc-elf-g++" "-mno-red-zone" "-print-file-name=crtbegin.o"
-  OUTPUT_VARIABLE CRT_BEGIN
-  ERROR_QUIET
-)
-string(STRIP "${CRT_BEGIN}" CRT_BEGIN)
-mark_as_advanced(CRT_BEGIN)
+include_guard(GLOBAL)
 
-string(REGEX REPLACE "/crtbegin.o" "" CMAKE_SYSROOT "${CRT_BEGIN}")
-mark_as_advanced(CMAKE_SYSROOT)
+macro(find_compiler_file NAME OUTPUT_VARIABLE)
+  execute_process(COMMAND
+    "${CMAKE_CXX_COMPILER}"
+    "-mno-red-zone"
+    "-print-file-name=${NAME}"
+    OUTPUT_STRIP_TRAILING_WHITESPACE
+    OUTPUT_VARIABLE "${OUTPUT_VARIABLE}"
+    ERROR_QUIET
+  )
+  mark_as_advanced("${OUTPUT_VARIABLE}")
+endmacro()
 
-set(SYSTEM_NAME "Generic")
+set(PLATFORM_TARGET "x86_64-pc-elf")
 
 set(CMAKE_TRY_COMPILE_TARGET_TYPE "STATIC_LIBRARY")
 
-set(CMAKE_C_COMPILER "x86_64-pc-elf-gcc")
-set(CMAKE_CXX_COMPILER "x86_64-pc-elf-g++")
+set(CMAKE_SYSTEM_NAME "Generic-ELF")
+set(CMAKE_SYSTEM_PROCESSOR "x86_64")
+
+set(CMAKE_ASM_COMPILER_TARGET "${PLATFORM_TARGET}")
+set(CMAKE_CXX_COMPILER_TARGET "${PLATFORM_TARGET}")
+
+find_program(CMAKE_ASM_COMPILER "${CMAKE_ASM_COMPILER_TARGET}-gcc" REQUIRED)
+find_program(CMAKE_CXX_COMPILER "${CMAKE_CXX_COMPILER_TARGET}-g++" REQUIRED)
+
+set(CMAKE_CXX_FLAGS_INIT
+"-mno-red-zone \
+-mcmodel=large \
+-fno-rtti \
+-fno-exceptions \
+-ffunction-sections \
+-fdata-sections"
+)
 
-set(CMAKE_CXX_FLAGS_INIT "-m64 -mno-red-zone -mcmodel=large -fno-rtti -fno-exceptions -ffunction-sections -fdata-sections")
 set(CMAKE_CXX_FLAGS_DEBUG "-ggdb3")
 set(CMAKE_ASM_FLAGS_DEBUG "-ggdb3")
-set(CMAKE_CXX_FLAGS_RELWITHDEBINFO "-ggdb3")
-set(CMAKE_ASM_FLAGS_RELWITHDEBINFO "-ggdb3")
+
+set(CMAKE_ASM_FLAGS_MINSIZEREL "-Os -DNDEBUG -ggdb3")
+set(CMAKE_CXX_FLAGS_MINSIZEREL "-Os -DNDEBUG -ggdb3")
+
+set(CMAKE_ASM_FLAGS_RELEASE "-O3 -DNDEBUG -ggdb3")
+set(CMAKE_CXX_FLAGS_RELEASE "-O3 -DNDEBUG -ggdb3")
+
+set(CMAKE_ASM_FLAGS_RELWITHDEBINFO "-O2 -DNDEBUG -ggdb3")
+set(CMAKE_CXX_FLAGS_RELWITHDEBINFO "-O2 -DNDEBUG -ggdb3")
+
 set(CMAKE_EXE_LINKER_FLAGS_INIT "-nostartfiles -Wl,--gc-sections")
+
+find_compiler_file("crtbegin.o" CRT_BEGIN_PATH)
+find_compiler_file("crtend.o" CRT_END_PATH)
+
 set(CMAKE_CXX_LINK_EXECUTABLE
-  "<CMAKE_CXX_COMPILER> \
-  <FLAGS> \
-  <CMAKE_CXX_LINK_FLAGS> \
-  <LINK_FLAGS> \
-  ${CMAKE_SYSROOT}/crtbegin.o \
-  <OBJECTS> \
-  -o <TARGET> \
-  <LINK_LIBRARIES> \
-  -lgcc \
-  ${CMAKE_SYSROOT}/crtend.o"
+"<CMAKE_CXX_COMPILER> \
+<FLAGS> \
+<CMAKE_CXX_LINK_FLAGS> \
+<LINK_FLAGS> \
+${CRT_BEGIN_PATH} \
+<OBJECTS> \
+-o <TARGET> \
+<LINK_LIBRARIES> \
+-lgcc \
+${CRT_END_PATH}"
 )
-- 
cgit v1.2.3


From 25483b7af8df6b08d460f807fda04c6d409bd44e Mon Sep 17 00:00:00 2001
From: Felix Morgner <felix.morgner@ost.ch>
Date: Mon, 14 Jul 2025 16:02:43 +0000
Subject: ide: start large-scale restructuring

---
 cmake/Platforms/x86_64.cmake | 1 -
 1 file changed, 1 deletion(-)

(limited to 'cmake')

diff --git a/cmake/Platforms/x86_64.cmake b/cmake/Platforms/x86_64.cmake
index 29af020..c84d9ba 100644
--- a/cmake/Platforms/x86_64.cmake
+++ b/cmake/Platforms/x86_64.cmake
@@ -60,6 +60,5 @@ ${CRT_BEGIN_PATH} \
 <OBJECTS> \
 -o <TARGET> \
 <LINK_LIBRARIES> \
--lgcc \
 ${CRT_END_PATH}"
 )
-- 
cgit v1.2.3


From 05ac8c2bdd000d27b38411db2223eabb649c318f Mon Sep 17 00:00:00 2001
From: Felix Morgner <felix.morgner@ost.ch>
Date: Mon, 14 Jul 2025 21:29:10 +0000
Subject: build: reintroduce bootable ISO

---
 cmake/Modules/GenerateBootableIso.cmake | 22 ++++++++++++++++++++++
 1 file changed, 22 insertions(+)
 create mode 100644 cmake/Modules/GenerateBootableIso.cmake

(limited to 'cmake')

diff --git a/cmake/Modules/GenerateBootableIso.cmake b/cmake/Modules/GenerateBootableIso.cmake
new file mode 100644
index 0000000..368dcf6
--- /dev/null
+++ b/cmake/Modules/GenerateBootableIso.cmake
@@ -0,0 +1,22 @@
+include_guard(GLOBAL)
+
+function(target_generate_bootable_iso TARGET)
+    find_package("grub-mkrescue")
+
+    file(GENERATE
+        OUTPUT "$<TARGET_FILE_DIR:${TARGET}>/isofs/boot/grub/grub.cfg"
+        INPUT "arch/${CMAKE_SYSTEM_PROCESSOR}/support/grub.cfg.in"
+    )
+
+    add_custom_command(TARGET "${TARGET}"
+        POST_BUILD
+        COMMAND "${GRUB_MKRESCUE_EXE}"
+        "-o"
+        "$<TARGET_FILE_DIR:${TARGET}>/${TARGET}.iso"
+        "$<TARGET_FILE_DIR:${TARGET}>/isofs"
+        "$<TARGET_FILE:${TARGET}>"
+        "2>/dev/null"
+        BYPRODUCTS "${PROJECT_BINARY_DIR}/$<CONFIGURATION>/${TARGET}.iso"
+        COMMENT "Creating bootable ISO image"
+    )
+endfunction()
-- 
cgit v1.2.3


From 9b12522f37c3f8704e8f8ca8736689dbbf30ce8b Mon Sep 17 00:00:00 2001
From: Felix Morgner <felix.morgner@ost.ch>
Date: Mon, 14 Jul 2025 21:35:43 +0000
Subject: cmake: introduce ELF utility module

---
 cmake/Modules/ElfTransformations.cmake | 36 ++++++++++++++++++++++++++++++++++
 1 file changed, 36 insertions(+)
 create mode 100644 cmake/Modules/ElfTransformations.cmake

(limited to 'cmake')

diff --git a/cmake/Modules/ElfTransformations.cmake b/cmake/Modules/ElfTransformations.cmake
new file mode 100644
index 0000000..dfc8576
--- /dev/null
+++ b/cmake/Modules/ElfTransformations.cmake
@@ -0,0 +1,36 @@
+include_guard(GLOBAL)
+
+function(target_extract_debug_symbols TARGET)
+    add_custom_command(TARGET "${TARGET}"
+        POST_BUILD
+        COMMAND "${CMAKE_OBJCOPY}"
+        "--only-keep-debug"
+        "$<TARGET_FILE:${TARGET}>"
+        "$<TARGET_FILE_DIR:${TARGET}>/$<TARGET_FILE_BASE_NAME:${TARGET}>.sym"
+        BYPRODUCTS "${CMAKE_RUNTIME_OUTPUT_DIRECTORY}/$<CONFIGURATION>/${TARGET}.sym"
+        COMMENT "Extracting debug symbols from $<TARGET_FILE:${TARGET}> ..."
+    )
+endfunction()
+
+function(target_strip TARGET)
+    add_custom_command(TARGET "${TARGET}"
+        POST_BUILD
+        COMMAND "${CMAKE_STRIP}"
+        "$<TARGET_FILE:${TARGET}>"
+        COMMENT "Stripping $<TARGET_FILE:${TARGET}> ..."
+    )
+endfunction()
+
+function(target_disassemble TARGET)
+    add_custom_command(TARGET "${TARGET}"
+        POST_BUILD
+        COMMAND "${CMAKE_OBJDUMP}"
+        "--disassemble"
+        "--visualize-jumps"
+        "--demangle"
+        "$<TARGET_FILE:${TARGET}>"
+        ">$<TARGET_FILE_DIR:${TARGET}>/$<TARGET_FILE_BASE_NAME:${TARGET}>.dis"
+        BYPRODUCTS "${CMAKE_RUNTIME_OUTPUT_DIRECTORY}/$<CONFIGURATION>/${TARGET}.dis"
+        COMMENT "Dumping disassembly for $<TARGET_FILE:${TARGET}> ..."
+    )
+endfunction()
-- 
cgit v1.2.3


From f82e0c289d6ab3e901dd80a3cf72aeeb0f85a8c5 Mon Sep 17 00:00:00 2001
From: Felix Morgner <felix.morgner@ost.ch>
Date: Wed, 23 Jul 2025 09:15:00 +0000
Subject: build: fix iso generation dependencies

---
 cmake/Modules/GenerateBootableIso.cmake | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'cmake')

diff --git a/cmake/Modules/GenerateBootableIso.cmake b/cmake/Modules/GenerateBootableIso.cmake
index 368dcf6..4698d6f 100644
--- a/cmake/Modules/GenerateBootableIso.cmake
+++ b/cmake/Modules/GenerateBootableIso.cmake
@@ -16,7 +16,7 @@ function(target_generate_bootable_iso TARGET)
         "$<TARGET_FILE_DIR:${TARGET}>/isofs"
         "$<TARGET_FILE:${TARGET}>"
         "2>/dev/null"
-        BYPRODUCTS "${PROJECT_BINARY_DIR}/$<CONFIGURATION>/${TARGET}.iso"
+        BYPRODUCTS "${CMAKE_RUNTIME_OUTPUT_DIRECTORY}/$<CONFIGURATION>/${TARGET}.iso"
         COMMENT "Creating bootable ISO image"
     )
 endfunction()
-- 
cgit v1.2.3


From 2ebf8d525e6a030efc8ca23bcbdf92c2d0cb8985 Mon Sep 17 00:00:00 2001
From: Felix Morgner <felix.morgner@ost.ch>
Date: Thu, 24 Jul 2025 10:17:53 +0000
Subject: x86_64: implement high/low split

---
 cmake/Platforms/x86_64.cmake | 24 ++++--------------------
 1 file changed, 4 insertions(+), 20 deletions(-)

(limited to 'cmake')

diff --git a/cmake/Platforms/x86_64.cmake b/cmake/Platforms/x86_64.cmake
index c84d9ba..8db6142 100644
--- a/cmake/Platforms/x86_64.cmake
+++ b/cmake/Platforms/x86_64.cmake
@@ -1,17 +1,5 @@
 include_guard(GLOBAL)
 
-macro(find_compiler_file NAME OUTPUT_VARIABLE)
-  execute_process(COMMAND
-    "${CMAKE_CXX_COMPILER}"
-    "-mno-red-zone"
-    "-print-file-name=${NAME}"
-    OUTPUT_STRIP_TRAILING_WHITESPACE
-    OUTPUT_VARIABLE "${OUTPUT_VARIABLE}"
-    ERROR_QUIET
-  )
-  mark_as_advanced("${OUTPUT_VARIABLE}")
-endmacro()
-
 set(PLATFORM_TARGET "x86_64-pc-elf")
 
 set(CMAKE_TRY_COMPILE_TARGET_TYPE "STATIC_LIBRARY")
@@ -27,7 +15,8 @@ find_program(CMAKE_CXX_COMPILER "${CMAKE_CXX_COMPILER_TARGET}-g++" REQUIRED)
 
 set(CMAKE_CXX_FLAGS_INIT
 "-mno-red-zone \
--mcmodel=large \
+-mcmodel=kernel \
+-fno-pie \
 -fno-rtti \
 -fno-exceptions \
 -ffunction-sections \
@@ -46,19 +35,14 @@ set(CMAKE_CXX_FLAGS_RELEASE "-O3 -DNDEBUG -ggdb3")
 set(CMAKE_ASM_FLAGS_RELWITHDEBINFO "-O2 -DNDEBUG -ggdb3")
 set(CMAKE_CXX_FLAGS_RELWITHDEBINFO "-O2 -DNDEBUG -ggdb3")
 
-set(CMAKE_EXE_LINKER_FLAGS_INIT "-nostartfiles -Wl,--gc-sections")
-
-find_compiler_file("crtbegin.o" CRT_BEGIN_PATH)
-find_compiler_file("crtend.o" CRT_END_PATH)
+set(CMAKE_EXE_LINKER_FLAGS_INIT "-Wl,--gc-sections")
 
 set(CMAKE_CXX_LINK_EXECUTABLE
 "<CMAKE_CXX_COMPILER> \
 <FLAGS> \
 <CMAKE_CXX_LINK_FLAGS> \
 <LINK_FLAGS> \
-${CRT_BEGIN_PATH} \
 <OBJECTS> \
 -o <TARGET> \
-<LINK_LIBRARIES> \
-${CRT_END_PATH}"
+<LINK_LIBRARIES>"
 )
-- 
cgit v1.2.3


From 017e6e1f8eb413e86738d2f2cfb4e8b29ebe26dc Mon Sep 17 00:00:00 2001
From: Felix Morgner <felix.morgner@ost.ch>
Date: Thu, 24 Jul 2025 13:16:20 +0000
Subject: build: clean up x86_64 toolchain

---
 cmake/Platforms/x86_64.cmake | 14 ++------------
 1 file changed, 2 insertions(+), 12 deletions(-)

(limited to 'cmake')

diff --git a/cmake/Platforms/x86_64.cmake b/cmake/Platforms/x86_64.cmake
index 8db6142..f969cb3 100644
--- a/cmake/Platforms/x86_64.cmake
+++ b/cmake/Platforms/x86_64.cmake
@@ -23,6 +23,8 @@ set(CMAKE_CXX_FLAGS_INIT
 -fdata-sections"
 )
 
+set(CMAKE_EXE_LINKER_FLAGS_INIT "-Wl,--gc-sections")
+
 set(CMAKE_CXX_FLAGS_DEBUG "-ggdb3")
 set(CMAKE_ASM_FLAGS_DEBUG "-ggdb3")
 
@@ -34,15 +36,3 @@ set(CMAKE_CXX_FLAGS_RELEASE "-O3 -DNDEBUG -ggdb3")
 
 set(CMAKE_ASM_FLAGS_RELWITHDEBINFO "-O2 -DNDEBUG -ggdb3")
 set(CMAKE_CXX_FLAGS_RELWITHDEBINFO "-O2 -DNDEBUG -ggdb3")
-
-set(CMAKE_EXE_LINKER_FLAGS_INIT "-Wl,--gc-sections")
-
-set(CMAKE_CXX_LINK_EXECUTABLE
-"<CMAKE_CXX_COMPILER> \
-<FLAGS> \
-<CMAKE_CXX_LINK_FLAGS> \
-<LINK_FLAGS> \
-<OBJECTS> \
--o <TARGET> \
-<LINK_LIBRARIES>"
-)
-- 
cgit v1.2.3


From 081edba16a917f5a56dd2c1c39eceb5e20f600b1 Mon Sep 17 00:00:00 2001
From: Felix Morgner <felix.morgner@ost.ch>
Date: Tue, 28 Oct 2025 09:42:31 +0100
Subject: build: simplify toolchain setup

---
 cmake/Platforms/x86_64.cmake | 16 +++++++++-------
 1 file changed, 9 insertions(+), 7 deletions(-)

(limited to 'cmake')

diff --git a/cmake/Platforms/x86_64.cmake b/cmake/Platforms/x86_64.cmake
index f969cb3..afdc0ec 100644
--- a/cmake/Platforms/x86_64.cmake
+++ b/cmake/Platforms/x86_64.cmake
@@ -14,15 +14,17 @@ find_program(CMAKE_ASM_COMPILER "${CMAKE_ASM_COMPILER_TARGET}-gcc" REQUIRED)
 find_program(CMAKE_CXX_COMPILER "${CMAKE_CXX_COMPILER_TARGET}-g++" REQUIRED)
 
 set(CMAKE_CXX_FLAGS_INIT
-"-mno-red-zone \
--mcmodel=kernel \
--fno-pie \
--fno-rtti \
--fno-exceptions \
--ffunction-sections \
--fdata-sections"
+    "-mno-red-zone"
+    "-mcmodel=kernel"
+    "-fno-pie"
+    "-fno-rtti"
+    "-fno-exceptions"
+    "-ffunction-sections"
+    "-fdata-sections"
 )
 
+list(JOIN CMAKE_CXX_FLAGS_INIT " " CMAKE_CXX_FLAGS_INIT)
+
 set(CMAKE_EXE_LINKER_FLAGS_INIT "-Wl,--gc-sections")
 
 set(CMAKE_CXX_FLAGS_DEBUG "-ggdb3")
-- 
cgit v1.2.3


From 7b9df8bec5038e0316540d2397df632fb14c9169 Mon Sep 17 00:00:00 2001
From: Felix Morgner <felix.morgner@ost.ch>
Date: Wed, 29 Oct 2025 17:01:22 +0100
Subject: chore: configure clang-tidy

---
 cmake/Platforms/x86_64.cmake | 1 +
 1 file changed, 1 insertion(+)

(limited to 'cmake')

diff --git a/cmake/Platforms/x86_64.cmake b/cmake/Platforms/x86_64.cmake
index afdc0ec..23287de 100644
--- a/cmake/Platforms/x86_64.cmake
+++ b/cmake/Platforms/x86_64.cmake
@@ -19,6 +19,7 @@ set(CMAKE_CXX_FLAGS_INIT
     "-fno-pie"
     "-fno-rtti"
     "-fno-exceptions"
+    "-fno-use-cxa-atexit"
     "-ffunction-sections"
     "-fdata-sections"
 )
-- 
cgit v1.2.3


From 78f0df1cf849af8b0ade40a8ebcffd7fb53635cb Mon Sep 17 00:00:00 2001
From: Felix Morgner <felix.morgner@ost.ch>
Date: Thu, 30 Oct 2025 15:59:48 +0100
Subject: libs: begin ELF support implementation

---
 cmake/Platforms/x86_64.cmake | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'cmake')

diff --git a/cmake/Platforms/x86_64.cmake b/cmake/Platforms/x86_64.cmake
index 23287de..b17fec8 100644
--- a/cmake/Platforms/x86_64.cmake
+++ b/cmake/Platforms/x86_64.cmake
@@ -10,7 +10,7 @@ set(CMAKE_SYSTEM_PROCESSOR "x86_64")
 set(CMAKE_ASM_COMPILER_TARGET "${PLATFORM_TARGET}")
 set(CMAKE_CXX_COMPILER_TARGET "${PLATFORM_TARGET}")
 
-find_program(CMAKE_ASM_COMPILER "${CMAKE_ASM_COMPILER_TARGET}-gcc" REQUIRED)
+find_program(CMAKE_ASM_COMPILER "${CMAKE_ASM_COMPILER_TARGET}-g++" REQUIRED)
 find_program(CMAKE_CXX_COMPILER "${CMAKE_CXX_COMPILER_TARGET}-g++" REQUIRED)
 
 set(CMAKE_CXX_FLAGS_INIT
-- 
cgit v1.2.3


From d2ae06ac6c19c1d6258f2ba0888e03795712826d Mon Sep 17 00:00:00 2001
From: Felix Morgner <felix.morgner@ost.ch>
Date: Mon, 15 Dec 2025 16:37:39 +0100
Subject: build: move kernel build configuration

---
 cmake/Modules/GenerateBootableIso.cmake | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'cmake')

diff --git a/cmake/Modules/GenerateBootableIso.cmake b/cmake/Modules/GenerateBootableIso.cmake
index 4698d6f..3d1ee30 100644
--- a/cmake/Modules/GenerateBootableIso.cmake
+++ b/cmake/Modules/GenerateBootableIso.cmake
@@ -5,7 +5,7 @@ function(target_generate_bootable_iso TARGET)
 
     file(GENERATE
         OUTPUT "$<TARGET_FILE_DIR:${TARGET}>/isofs/boot/grub/grub.cfg"
-        INPUT "arch/${CMAKE_SYSTEM_PROCESSOR}/support/grub.cfg.in"
+        INPUT "${PROJECT_SOURCE_DIR}/arch/${CMAKE_SYSTEM_PROCESSOR}/support/grub.cfg.in"
     )
 
     add_custom_command(TARGET "${TARGET}"
-- 
cgit v1.2.3