build hello fw with GCC Toolchain v2020.04.1 (set GPIO_IOF_EN). Remove obsolete function write_hex
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@ -1,27 +0,0 @@
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################################################################################
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# Automatically-generated file. Do not edit!
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################################################################################
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# Add inputs and outputs from these tool invocations to the build variables
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C_SRCS += \
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../libwrap/misc/write_hex.c
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O_SRCS += \
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../libwrap/misc/write_hex.o
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OBJS += \
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./libwrap/misc/write_hex.o
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C_DEPS += \
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./libwrap/misc/write_hex.d
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# Each subdirectory must supply rules for building sources it contributes
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libwrap/misc/%.o: ../libwrap/misc/%.c
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@echo 'Building file: $<'
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@echo 'Invoking: Cross GCC Compiler'
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riscv32-unknown-elf-gcc -O0 -g3 -Wall -c -fmessage-length=0 -MMD -MP -MF"$(@:%.o=%.d)" -MT"$(@)" -o "$@" "$<"
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@echo 'Finished building: $<'
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@echo ' '
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@ -76,6 +76,4 @@
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#define RTC_FREQ 32768
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void write_hex(int fd, uint32_t hex);
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#endif /* _SIFIVE_HIFIVE1_H */
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@ -25,8 +25,7 @@ LIBWRAP_SRCS := \
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sys/isatty.c \
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sys/times.c \
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sys/sbrk.c \
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sys/_exit.c \
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misc/write_hex.c
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sys/_exit.c
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LIBWRAP_SRCS := $(foreach f,$(LIBWRAP_SRCS),$(LIBWRAP_DIR)/$(f))
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LIBWRAP_OBJS := $(LIBWRAP_SRCS:.c=.o)
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@ -1,19 +0,0 @@
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/* See LICENSE of license details. */
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#include <stdint.h>
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#include <unistd.h>
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#include "platform.h"
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void write_hex(int fd, uint32_t hex)
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{
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uint8_t ii;
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uint8_t jj;
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char towrite;
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write(fd , "0x", 2);
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for (ii = 8 ; ii > 0; ii--) {
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jj = ii - 1;
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uint8_t digit = ((hex & (0xF << (jj*4))) >> (jj*4));
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towrite = digit < 0xA ? ('0' + digit) : ('A' + (digit - 0xA));
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write(fd, &towrite, 1);
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}
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}
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@ -10,7 +10,6 @@ void __wrap__exit(int code)
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//*leds = (~(code));
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write(STDERR_FILENO, message, sizeof(message) - 1);
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write_hex(STDERR_FILENO, code);
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write(STDERR_FILENO, "\n", 1);
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for (;;);
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BIN
hello/hello
BIN
hello/hello
Binary file not shown.
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@ -57,14 +57,17 @@ unsigned read_adc(unsigned index){
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return result&0x03ff;
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}
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extern void write_hex(int fd, uint32_t hex);
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//int read_csr(int csr_num) __attribute__((always_inline)) {
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// int result;
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// asm("csrr %0, %1" : "=r"(result) : "I"(csr_num));
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// return result;
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//}
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int main()
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{
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write_hex(1, 0x55aa);
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volatile int result = factorial (10);
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printf("Factorial is %d\n", result);
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GPIO_REG(GPIO_IOF_EN) |= 0x30000;
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int result = factorial (10);
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printf("Factorial of 10 is %d\n", result);
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for(unsigned i=0; i<8; ++i)
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printf("ADC%u value read is %u\n", i, read_adc(i));
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printf("End of execution");
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4359
hello/hello.dis
4359
hello/hello.dis
File diff suppressed because it is too large
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