set correct stack_size for wamr

disable -O2
makefile: add bochs-only target
2026-02-05 17:55:37 +01:00 · 2026-02-05 17:55:22 +01:00 · 2026-02-05 17:53:08 +01:00 · 2026-02-05 17:52:59 +01:00 · 2026-02-05 17:52:13 +01:00
6 changed files with 60 additions and 43 deletions
--- a/3
+++ b/3
@ -6,3 +6,6 @@ run:

 run-external:
 	docker run --rm -it -v "./examples:/home/ubuntu/examples" wasm-base:latest /usr/bin/fish
+
+bochs:
+	nix shell nixpkgs#bochs --command sh -c "bochs -f ./examples/arch/bochs/bochsrc-host.txt -q"
--- a/examples/arch/bochs.mk
+++ b/examples/arch/bochs.mk
@ -4,7 +4,7 @@ WASI_CC       := ${WASI_ROOT}/bin/clang
 WASI_CFLAGS   := --target=wasm32 \
 				 --sysroot=${WASI_ROOT}/share/wasi-sysroot \
 				 -z stack-size=4096 \
-				 -O2 -nostdlib \
+				 -O0 -nostdlib \
 				 -Wl,--no-entry \
 				 -Wl,--initial-memory=65536 \
 				 -Wl,--export-all \
@ -15,17 +15,15 @@ WASI_CFLAGS   := --target=wasm32 \
 WAMR          := /opt/wamr
 IWASM_LIB     := /opt/wamr-libiwasm
 CC            := gcc
-# NOTE: Without -fomit-frame-pointer I get "error: bp cannot be used in ‘asm’ here"
-CFLAGS        := -I. -O2 -m32 -ffunction-sections -fomit-frame-pointer
-LDFLAGS       := -Wl,-T linker.ld $^ -Wl,--build-id=none -static -nostdlib -m32 \
-				 -Wl,-rpath,${IWASM_LIB} -L${IWASM_LIB} -liwasm
+# NOTE: When compiling I get "error: bp cannot be used in ‘asm’ here"
+#       I could remove "ebp" from the clobber list (ARCH_ASM_CLOBBER_ALL) or
+#       use the -fomit-frame-pointer flag to tell gcc it shouldn't rely on ebp for enter/leave...
+CFLAGS        := -I. -O0 -m32 -ffunction-sections -std=c11 -fomit-frame-pointer
+LDFLAGS        = -Wl,-T linker.ld $^ -Wl,--build-id=none -static -nostdlib -m32 \
+		 -Wl,-rpath,${IWASM_LIB} -L${IWASM_LIB} -liwasm -lgcc
 INCL          := -I${WAMR}/core/iwasm/include \
-				 -I${WAMR}/core/iwasm/common \
-				 -I${WAMR}/core/shared/platform/include \
-				 -I${WAMR}/core/shared/platform/linux \
-				 -I${WAMR}/core/shared/mem-alloc \
-				 -I${WAMR}/core/shared/utils \
-				 -I${WAMR}/core/shared/utils/uncommon
+		 -I${WAMR}/core/shared/utils \
+		 -I${WAMR}/core/shared/platform/baremetal
 WAMRC         := /opt/wamr-wamrc/wamrc
 WAMRCFLAGS    := --target=i386 --format=object
 XXD           := busybox xxd
@ -87,11 +85,12 @@ BOCHS_RUNNER_ARGS = \
 	-V arch/bochs/vgabios.bin                      \
 	-b arch/bochs/BIOS-bochs-latest                \

-${BUILD_DIR}/%/trace.pb: ${BUILD_DIR}/%/system.iso
+# ${BUILD_DIR}/%/trace.pb: ${BUILD_DIR}/%/system.iso
+${BUILD_DIR}/%/trace.pb:
 	${BOCHS_RUNNER} ${BOCHS_RUNNER_ARGS} -1        \
 	-f ${FAIL_TRACE}                               \
-	-e $(shell dirname $<)/system.elf              \
-	-i $(shell dirname $<)/system.iso              \
+	-e $(shell dirname $<)/$*/system.elf              \
+	-i $(shell dirname $<)/$*/system.iso              \
 	-- \
 	-Wf,--state-file=$(shell dirname $<)/state     \
 	-Wf,--trace-file=$(shell dirname $<)/trace.pb  \
--- a/examples/arch/bochs/bochsrc-docker.txt
+++ b/examples/arch/bochs/bochsrc-docker.txt
@ -0,0 +1,9 @@
+megs: 32
+display_library: nogui
+romimage: file=/home/ubuntu/examples/arch/bochs/BIOS-bochs-latest
+vgaromimage: file=/home/ubuntu/examples/arch/bochs/vgabios.bin
+ata0-master: type=cdrom, path=/home/ubuntu/examples/build-bochs/sum/system.iso, status=inserted
+boot: cdrom
+log: bochslog.txt
+clock: sync=realtime, time0=local
+cpu: count=1, ips=1000000
--- a/examples/arch/bochs/bochsrc-host.txt
+++ b/examples/arch/bochs/bochsrc-host.txt
@ -0,0 +1,10 @@
+megs: 32
+display_library: nogui
+romimage: file="/home/christoph/Notes/TU/MastersThesis/3 Wasm/examples/arch/bochs/BIOS-bochs-latest"
+vgaromimage: file="/home/christoph/Notes/TU/MastersThesis/3 Wasm/examples/arch/bochs/vgabios.bin"
+ata0-master: type=cdrom, path="/home/christoph/Notes/TU/MastersThesis/3 Wasm/examples/build-bochs/sum/system.iso", status=inserted
+boot: cdrom
+log: bochslog.txt
+clock: sync=realtime, time0=local
+cpu: count=1, ips=1000000
+sound: driver=dummy
--- a/examples/embed/host.c
+++ b/examples/embed/host.c
@ -1,18 +1,14 @@
 // https://github.com/bytecodealliance/wasm-micro-runtime/blob/WAMR-2.4.4/doc/embed_wamr.md

-// #include <stdio.h>
-#include <string.h>
-
 #include "lib.c"

-// #include "bh_read_file.h"
 #include "bh_platform.h"
 #include "wasm_export.h"

 #include "__WASM_ARRAY_FILE__"

-#define STACK_SIZE (8 * 1024)
-#define HEAP_SIZE (8 * 1024)
+#define STACK_SIZE (4 * 1024)
+#define HEAP_SIZE (4 * 1024)

 // TODO: Set this up so the lsp actually finds the includes...

@ -22,8 +18,6 @@ MAIN() {
  wasm_module_inst_t module_inst;
  wasm_function_inst_t func;
  wasm_exec_env_t exec_env;
-  uint32 stack_size = 8 * 1024;
-  uint32 heap_size = 8 * 1024;

  /* initialize the wasm runtime */
  RuntimeInitArgs init_args;
@ -39,14 +33,14 @@ MAIN() {
                             sizeof(error_buf));

  /* create an instance of the WASM module (WASM linear memory is ready) */
-  module_inst = wasm_runtime_instantiate(module, stack_size, heap_size,
+  module_inst = wasm_runtime_instantiate(module, STACK_SIZE, HEAP_SIZE,
                                         error_buf, sizeof(error_buf));

  /* lookup a WASM function by its name, the function signature can NULL here */
  func = wasm_runtime_lookup_function(module_inst, "wasm_module");

  /* create an execution environment to execute arbitrary WASM functions */
-  exec_env = wasm_runtime_create_exec_env(module_inst, stack_size);
+  exec_env = wasm_runtime_create_exec_env(module_inst, STACK_SIZE);

  /* arguments are always transferred in 32-bit element */
  uint32 args[1];
--- a/wasm-base.dockerfile
+++ b/wasm-base.dockerfile
@ -31,21 +31,21 @@ RUN git clone https://gitea.vps.chriphost.de/christoph/wamr \
 WORKDIR /wamr

 # Build WAMR iwasm (vmcore standalone interpreter)
-# RUN cd product-mini/platforms/linux \
-#  && mkdir build_iwasm && cd build_iwasm \
-#  && cmake \
-#     -DWAMR_BUILD_PLATFORM=linux \
-#     -DWAMR_BUILD_TARGET=X86_64 \
-#     -DWAMR_BUILD_AOT=0 \
-#     -DWAMR_BUILD_WAMR_COMPILER=0 \
-#     -DWAMR_BUILD_INTERP=1 \
-#     -DWAMR_BUILD_FAST_INTERP=0 \
-#     -DWAMR_BUILD_JIT=0 \
-#     -DWAMR_BUILD_FAST_JIT=0 \
-#     -DWAMR_BUILD_LIBC_BUILTIN=1 \
-#     -DWAMR_BUILD_LIBC_WASI=1 \
-#     .. \
-#  && make -j$(nproc)
+RUN cd product-mini/platforms/linux \
+ && mkdir build_iwasm && cd build_iwasm \
+ && cmake \
+    -DWAMR_BUILD_PLATFORM=linux \
+    -DWAMR_BUILD_TARGET=X86_64 \
+    -DWAMR_BUILD_AOT=0 \
+    -DWAMR_BUILD_WAMR_COMPILER=0 \
+    -DWAMR_BUILD_INTERP=1 \
+    -DWAMR_BUILD_FAST_INTERP=0 \
+    -DWAMR_BUILD_JIT=0 \
+    -DWAMR_BUILD_FAST_JIT=0 \
+    -DWAMR_BUILD_LIBC_BUILTIN=1 \
+    -DWAMR_BUILD_LIBC_WASI=1 \
+    .. \
+ && make -j$(nproc)

 # Build WAMR wamrc (standalone compiler)
 RUN cd wamr-compiler \
@ -110,6 +110,7 @@ RUN mkdir build_libiwasm && cd build_libiwasm \
    -DWAMR_BUILD_LIBC_BUILTIN=1 \
    -DWAMR_BUILD_LIBC_WASI=0 \
    -DWAMR_BUILD_SIMD=0 \
+    -DCMAKE_COLOR_DIAGNOSTICS=ON \
    .. \
 && make -j$(nproc)

@ -134,12 +135,13 @@ RUN apt-get update \
    grub-pc-bin \
 && apt-get clean

-COPY --from=wamr-builder /wamr /opt/wamr
-COPY --from=wamr-builder /wamrlib /opt/wamrlib
+COPY --from=wamr-builder /wamrlib /opt/wamr
+COPY --from=wamr-builder /wamr/wamr-compiler/build_wamrc /opt/wamr/wamr-compiler/build_wamrc
+COPY --from=wamr-builder /wamr/product-mini/platforms/linux/build_iwasm /opt/wamr/product-mini/platforms/linux/build_iwasm
 RUN ln -sf /opt/wamr/product-mini/platforms/linux/build_iwasm /opt/wamr-iwasm \
 && ln -sf /opt/wamr/wamr-compiler/build_wamrc /opt/wamr-wamrc \
- && ln -sf /opt/wamrlib/wamr-compiler/build_libvmlib /opt/wamr-libvmlib \
- && ln -sf /opt/wamrlib/build_libiwasm /opt/wamr-libiwasm
+ && ln -sf /opt/wamr/wamr-compiler/build_libvmlib /opt/wamr-libvmlib \
+ && ln -sf /opt/wamr/build_libiwasm /opt/wamr-libiwasm

 COPY ./examples /home/ubuntu/examples
 WORKDIR /home/ubuntu/examples
Author	SHA1	Message	Date
Christoph Urlacher	6381727851	set correct stack_size for wamr	2026-02-05 17:55:37 +01:00
Christoph Urlacher	6307a01b6f	disable -O2	2026-02-05 17:55:22 +01:00
Christoph Urlacher	fc57777a5b	makefile: add bochs-only target	2026-02-05 17:53:08 +01:00
Christoph Urlacher	b62e56c130	dockerfile: update for baremetal platform	2026-02-05 17:52:59 +01:00
Christoph Urlacher	e742cec923	add bochsrc files	2026-02-05 17:52:13 +01:00