mirror of
https://github.com/aolofsson/oh.git
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105 lines
2.4 KiB
Python
Executable File
105 lines
2.4 KiB
Python
Executable File
#!/usr/bin/env python3
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#############################################################################
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# celf <arch> <inputfile> <outputfile>
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#
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# Uses gcc
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#
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# Simple utility for compiling c into an elf
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#
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# .globl _start
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# _start:
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# lui a0,0x1
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#
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#############################################################################
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import subprocess
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import sys
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import re
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import os
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ARCH = sys.argv[1]
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ASM = sys.argv[2]
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ELF = sys.argv[3]
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#############################################
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#SETUP
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LINKERSCRIPT="tmp.ld"
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if(ARCH=="rv32i"):
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GCC="riscv64-unknown-elf-gcc -march=rv32i -mabi=ilp32"
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GCCOPT=" -O2 -static -mcmodel=medany -fvisibility=hidden -nostdlib -nostartfiles"
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OUTPUT="riscv"
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OBJDUMP="riscv64-unknown-elf-objdump"
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elif(ARCH=="rv32gc"):
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GCC="riscv64-unknown-elf-gcc -O2 -march=rv32gc -mabi=ilp32"
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GCCOPT=" -O2 -static -mcmodel=medany -fvisibility=hidden -nostdlib -nostartfiles"
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OUTPUT="riscv"
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OBJDUMP="riscv64-unknown-elf-objdump"
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elif(ARCH=="rv64gc"):
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GCC="riscv64-unknown-elf-gcc -O2 -march=rv64gc -mabi=lp64d"
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GCCOPT=" -O2 -static -mcmodel=medany -fvisibility=hidden -nostdlib -nostartfiles"
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OUTPUT="riscv"
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OBJDUMP="riscv64-unknown-elf-objdump"
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else:
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GCC="e-gcc"
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GCCOPT=" -O2 -static -fvisibility=hidden -nostdlib -nostartfiles"
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OUTPUT="epiphany"
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OBJDUMP="e-objdump"
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#############################################
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#PRINT LINKER FILE
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f=open("tmp.ld",'w')
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f.write("OUTPUT_ARCH( \"" + OUTPUT + "\" )\n")
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if(ARCH=="rv32i"):
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f.write("""ENTRY(_start)
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SECTIONS
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{
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. = 0x80000000;
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.text.trap : { *(.text.trap) }
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. = 0x00000000;
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.text.init : { *(.text.init) }
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. = ALIGN(0x1000);
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.tohost : { *(.tohost) }
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. = ALIGN(0x1000);
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.text : { *(.text) }
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. = ALIGN(0x1000);
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.data : { *(.data) }
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.data.string : { *(.data.string)}
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.bss : { *(.bss) }
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_end = .;
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}""")
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else:
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f.write("""ENTRY(_start)
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SECTIONS
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{
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. = 0x00000000;
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.text.init : { *(.text.init) }
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. = ALIGN(0x1000);
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.tohost : { *(.tohost) }
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. = ALIGN(0x1000);
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.text : { *(.text) }
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. = ALIGN(0x1000);
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.data : { *(.data) }
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.bss : { *(.bss) }
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_end = .;
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}""")
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f.close()
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#############################################
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#RUN GCC
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CMD = GCC + GCCOPT + " -T" + LINKERSCRIPT + " -o " + ELF + " " + ASM
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print(CMD)
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os.system(CMD)
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#RUN OBJDUMP
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CMD = OBJDUMP+ " -d " + ELF + " > " + ELF + ".objdump"
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print(CMD)
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os.system(CMD)
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