jepler/ulp-circuitpython
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fix build?

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This commit is contained in:
Jeff Epler 2022-10-23 11:42:11 -05:00
parent 9235698c79
commit f45e9572e2
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GPG key ID: D5BF15AB975AB4DE
4 changed files with 20 additions and 8 deletions
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15
Makefile
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@ -7,7 +7,8 @@ SOC := esp32s3
CROSS := riscv32-esp-elf-
CC := $(CROSS)gcc
STRIP := $(CROSS)strip
CFLAGS := -Os -march=rv32imc -mdiv -fdata-sections -ffunction-sections
CFLAGS := -g -Os -march=rv32imc -mdiv -fdata-sections -ffunction-sections
#CFLAGS += -fvisibility=hidden
CFLAGS += -isystem $(IDF_PATH)/components/ulp/ulp_riscv/include/
CFLAGS += -isystem $(IDF_PATH)/components/soc/$(SOC)/include
CFLAGS += -isystem $(IDF_PATH)/components/esp_common/include
@ -18,11 +19,15 @@ endif
ifeq ($(SOC),esp32s2)
CFLAGS += -DCONFIG_IDF_TARGET_ESP32S2
endif
LDFLAGS := -march=rv32imc --specs=nano.specs --specs=nosys.specs
ifeq ($(origin USER_CFLAGS),undefined)
CFLAGS += $(USER_CFLAGS)
endif
LDFLAGS := -Wl,-A,elf32-esp32s2ulp -nostdlib --specs=nano.specs --specs=nosys.specs -Wl,--gc-sections
SRCS ?= ulp.c
SRCS += $(IDF_PATH)/components/ulp/ulp_riscv/ulp_riscv_utils.c
LDFLAGS += link.ld
SRCS += $(IDF_PATH)/components/ulp/ulp_riscv/start.S
LDFLAGS += -Wl,-T,link.ld
.PHONY: default
@ -30,8 +35,8 @@ default: a.out-stripped
a.out-stripped: a.out
$(STRIP) -g -o $@ $<
a.out: $(SRCS) link.ld
$(CC) -flto $(CFLAGS) $^ -o $@ $(LDFLAGS)
a.out: $(SRCS) | link.ld Makefile
$(CC) $(CFLAGS) $^ -o $@ $(LDFLAGS)
.PHONY: clean
clean:

3
py/minidump.py
View file

@ -11,4 +11,7 @@ en = sy.entry
for h in e.iter_headers():
if h.p_type == PT_LOAD:
print(f"@{h.p_vaddr:04x}: Load {h.p_filesz} bytes starting at {h.p_offset}")
content = e._readat(h.p_offset, 16)
print(" ".join(f"{b:02x}" for b in content))
print(f"shared_mem @ 0x{en.st_value:04x} 0x{en.st_size:04x} bytes")

8
ulp.c
View file

@ -7,9 +7,13 @@
#include "ulp_riscv/ulp_riscv_utils.h"
#include "ulp_riscv/ulp_riscv_gpio.h"
#define EXPORT __attribute__((used,visibility("default")))
// global variables will be exported as public symbols, visible from main CPU
__attribute__((used)) uint8_t shared_mem[1024];
__attribute__((used)) uint16_t shared_mem_len = 1024;
EXPORT uint8_t shared_mem[1024];
EXPORT uint16_t shared_mem_len = 1024;
#undef ULP_RISCV_CYCLES_PER_MS
#define ULP_RISCV_CYCLES_PER_MS (int)(1000*ULP_RISCV_CYCLES_PER_US)
int main (void) {
shared_mem[0] = 10;

2
ulp.riscv.ld
View file

@ -17,7 +17,7 @@ SECTIONS
. = ORIGIN(ram);
.text :
{
*start.S.obj(.text.vectors) /* Default reset vector must link to offset 0x0 */
*(.text.vectors) /* Default reset vector must link to offset 0x0 */
*(.text)
*(.text*)
} >ram