Artturin
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264438ef3a
|
After make clean and make, this file changes
`make run` works
riscv compiler is gcc 14
`diffoscope old-hello.elf new-hello.elf`
```
--- old-hello.elf
+++ new-hello.elf
├── readelf --wide --file-header {}
│ @@ -6,15 +6,15 @@
│ OS/ABI: UNIX - System V
│ ABI Version: 0
│ Type: EXEC (Executable file)
│ Machine: RISC-V
│ Version: 0x1
│ Entry point address: 0x80000000
│ Start of program headers: 64 (bytes into file)
│ - Start of section headers: 4600 (bytes into file)
│ + Start of section headers: 4632 (bytes into file)
│ Flags: 0x1, RVC, soft-float ABI
│ Size of this header: 64 (bytes)
│ Size of program headers: 56 (bytes)
│ Number of program headers: 2
│ Size of section headers: 64 (bytes)
│ Number of section headers: 7
│ Section header string table index: 6
├── readelf --wide --program-header {}
│ @@ -1,14 +1,14 @@
│
│ Elf file type is EXEC (Executable file)
│ Entry point 0x80000000
│ There are 2 program headers, starting at offset 64
│
│ Program Headers:
│ Type Offset VirtAddr PhysAddr FileSiz MemSiz Flg Align
│ - RISCV_ATTRIBUT 0x00102b 0x0000000000000000 0x0000000000000000 0x000032 0x000000 R 0x1
│ + RISCV_ATTRIBUT 0x00102b 0x0000000000000000 0x0000000000000000 0x000045 0x000000 R 0x1
│ LOAD 0x001000 0x0000000080000000 0x0000000080000000 0x00002b 0x00002b R E 0x1000
│
│ Section to Segment mapping:
│ Segment Sections...
│ 00 .riscv.attributes
│ 01 .text .rodata
├── readelf --wide --sections {}
│ @@ -1,16 +1,16 @@
│ -There are 7 section headers, starting at offset 0x11f8:
│ +There are 7 section headers, starting at offset 0x1218:
│
│ Section Headers:
│ [Nr] Name Type Address Off Size ES Flg Lk Inf Al
│ [ 0] NULL 0000000000000000 000000 000000 00 0 0 0
│ [ 1] .text PROGBITS 0000000080000000 001000 00001c 00 AX 0 0 2
│ [ 2] .rodata PROGBITS 000000008000001c 00101c 00000f 00 A 0 0 1
│ - [ 3] .riscv.attributes RISCV_ATTRIBUTES 0000000000000000 00102b 000032 00 0 0 1
│ - [ 4] .symtab SYMTAB 0000000000000000 001060 000108 18 5 10 8
│ - [ 5] .strtab STRTAB 0000000000000000 001168 00004f 00 0 0 1
│ - [ 6] .shstrtab STRTAB 0000000000000000 0011b7 00003b 00 0 0 1
│ + [ 3] .riscv.attributes RISCV_ATTRIBUTES 0000000000000000 00102b 000045 00 0 0 1
│ + [ 4] .symtab SYMTAB 0000000000000000 001070 000108 18 5 10 8
│ + [ 5] .strtab STRTAB 0000000000000000 001178 000062 00 0 0 1
│ + [ 6] .shstrtab STRTAB 0000000000000000 0011da 00003b 00 0 0 1
│ Key to Flags:
│ W (write), A (alloc), X (execute), M (merge), S (strings), I (info),
│ L (link order), O (extra OS processing required), G (group), T (TLS),
│ C (compressed), x (unknown), o (OS specific), E (exclude),
│ D (mbind), p (processor specific)
├── readelf --wide --symbols {}
│ @@ -3,12 +3,12 @@
│ Num: Value Size Type Bind Vis Ndx Name
│ 0: 0000000000000000 0 NOTYPE LOCAL DEFAULT UND
│ 1: 0000000080000000 0 SECTION LOCAL DEFAULT 1 .text
│ 2: 000000008000001c 0 SECTION LOCAL DEFAULT 2 .rodata
│ 3: 0000000000000000 0 SECTION LOCAL DEFAULT 3 .riscv.attributes
│ 4: 0000000000000000 0 FILE LOCAL DEFAULT ABS hello.o
│ 5: 0000000010000000 0 NOTYPE LOCAL DEFAULT ABS UART_BASE
│ - 6: 0000000080000000 0 NOTYPE LOCAL DEFAULT 1 $xrv64i2p1_m2p0_a2p1_c2p0_zmmul1p0
│ + 6: 0000000080000000 0 NOTYPE LOCAL DEFAULT 1 $xrv64i2p1_m2p0_a2p1_c2p0_zmmul1p0_zaamo1p0_zalrsc1p0
│ 7: 000000008000001c 0 NOTYPE LOCAL DEFAULT 2 message
│ 8: 0000000080000008 0 NOTYPE LOCAL DEFAULT 1 loop
│ 9: 000000008000001a 0 NOTYPE LOCAL DEFAULT 1 exit
│ 10: 0000000080000000 0 NOTYPE GLOBAL DEFAULT 1 _start
├── strings --all --bytes=8 {}
│ @@ -1,6 +1,6 @@
│ Hello, world!
│ -rv64i2p1_m2p0_a2p1_c2p0_zmmul1p0
│ +rv64i2p1_m2p0_a2p1_c2p0_zmmul1p0_zaamo1p0_zalrsc1p0
│ UART_BASE
│ -$xrv64i2p1_m2p0_a2p1_c2p0_zmmul1p0
│ +$xrv64i2p1_m2p0_a2p1_c2p0_zmmul1p0_zaamo1p0_zalrsc1p0
│ .shstrtab
│ .riscv.attributes
├── readelf --wide --decompress --hex-dump=.riscv.attributes {}
│ @@ -1,7 +1,8 @@
│
│ Hex dump of section '.riscv.attributes':
│ - 0x00000000 41310000 00726973 63760001 27000000 A1...riscv..'...
│ + 0x00000000 41440000 00726973 63760001 3a000000 AD...riscv..:...
│ 0x00000010 05727636 34693270 315f6d32 70305f61 .rv64i2p1_m2p0_a
│ 0x00000020 3270315f 63327030 5f7a6d6d 756c3170 2p1_c2p0_zmmul1p
│ - 0x00000030 3000 0.
│ + 0x00000030 305f7a61 616d6f31 70305f7a 616c7273 0_zaamo1p0_zalrs
│ + 0x00000040 63317030 00 c1p0.
├── readelf --wide --decompress --hex-dump=.strtab {}
│ @@ -1,8 +1,10 @@
│
│ Hex dump of section '.strtab':
│ 0x00000000 0068656c 6c6f2e6f 00554152 545f4241 .hello.o.UART_BA
│ 0x00000010 53450024 78727636 34693270 315f6d32 SE.$xrv64i2p1_m2
│ 0x00000020 70305f61 3270315f 63327030 5f7a6d6d p0_a2p1_c2p0_zmm
│ - 0x00000030 756c3170 30006d65 73736167 65006c6f ul1p0.message.lo
│ - 0x00000040 6f700065 78697400 5f737461 727400 op.exit._start.
│ + 0x00000030 756c3170 305f7a61 616d6f31 70305f7a ul1p0_zaamo1p0_z
│ + 0x00000040 616c7273 63317030 006d6573 73616765 alrsc1p0.message
│ + 0x00000050 006c6f6f 70006578 6974005f 73746172 .loop.exit._star
│ + 0x00000060 7400 t.
```
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2025-02-22 22:02:52 +02:00 |
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Yehowshua Immanuel