Hello Jaehoon, I found 'u-boot' is the elf file containing the debug-info (while reading README.SPL) and found your email below while trying to send an update email. Yes, I don't have to make u-boot.elf but can just use 'u-boot' like you showed(I missed the generated file). The gdb now can follow the code step by step. Thank you for taking time for me. Best regards,
Chan Kim > -----Original Message----- > From: Jaehoon Chung <jh80.ch...@samsung.com> > Sent: Tuesday, October 19, 2021 4:02 PM > To: Chan Kim <c...@etri.re.kr>; 'U-Boot Mailing List' <u- > b...@lists.denx.de> > Subject: Re: How to compile u-boot with debug option? > > Hi, > > On 10/19/21 2:01 PM, Chan Kim wrote: > > > > Hello, Jaehoon and all, > > > > I tried setting in menuconfig TOOLS_DEBUG but no change. It's strainge, > when I add "V=1" in the make command, I can see the commands run during > the make. The cc command has -g options, a typical command being like > this : > > > > aarch64-none-elf-gcc -Wp,-MD,lib/.asm-offsets.s.d -nostdinc -isystem > /home/ckim/prj/abdsn/ab21cv/tools/cc_zeus/gcc-arm-9.2-2019.12-x86_64- > aarch64-none-elf/bin/../lib/gcc/aarch64-none-elf/9.2.1/include -Iinclude > -I./arch/arm/include -include ./include/linux/kconfig.h -D__KERNEL__ - > D__UBOOT__ -Wall -Wstrict-prototypes -Wno-format-security -fno-builtin - > ffreestanding -std=gnu11 -fshort-wchar -fno-strict-aliasing -fno-PIE -Os - > fno-stack-protector -fno-delete-null-pointer-checks -Wno-pointer-sign - > Wno-stringop-truncation -Wno-array-bounds -Wno-stringop-overflow -Wno- > maybe-uninitialized -fmacro-prefix-map=./= -g -fstack-usage -Wno-format- > nonliteral -Wno-address-of-packed-member -Wno-unused-but-set-variable - > Werror=date-time -Wno-packed-not-aligned -D__ARM__ -fno-pic -mstrict-align > -ffunction-sections -fdata-sections -fno-common -ffixed-r9 -mgeneral-regs- > only -fno-common -ffixed-x18 -pipe -march=armv8-a+crc - > D__LINUX_ARM_ARCH__=8 -DDO_DEPS_ONLY -DKBUILD_BASENAME='"asm_offsets"' > -DKBUILD_MODNAME='"asm_offsets"' -fverbose-asm -S -o lib/asm-offsets.s > lib/asm-offsets.c > > > > (you can see -g option near the middle place) I don't know why the > > final .elf file doesn't contain debuginfo. > > Actually, i didn't run u-boot on qemu with gdb. But I followed the below > step.. > > $make ARCH=arm64 qemu_arm64_defconfig > $make CROSS_COMPILE=aarch64-none-elf- > > $qemu-system-aarch64 -curses -machine virt -cpu cortex-a57 -bios u- > boot.bin -S -s $aarch64-none-elf-gdb u-boot -ex "target remote tcp::1234" > > Then I can run u-boot step-by-step. > > ─── Output/messages > ────────────────────────────────────────────────────────────────────────── > ────────────────────────────────────────────────────────────────────────── > ───────────────────────────────────────────────────────────── > reset () at arch/arm/cpu/armv8/start.S:57 > 57 b save_boot_params > ─── Assembly > ────────────────────────────────────────────────────────────────────────── > ────────────────────────────────────────────────────────────────────────── > ──────────────────────────────────────────────────────────────────── > 0x0000000000000028 ? b 0x174 <save_boot_params> > 0x000000000000002c ? adr x0, 0x0 <_start> > 0x0000000000000030 ? ands x0, x0, #0xfff > 0x0000000000000034 ? b.eq 0x40 <pie_fixup> // b.none > 0x0000000000000038 ? wfi > 0x000000000000003c ? b 0x38 <save_boot_params_ret+12> > 0x0000000000000040 ? adr x0, 0x0 <_start> > 0x0000000000000044 ? ldr x1, 0x8 <_TEXT_BASE> > 0x0000000000000048 ? subs x9, x0, x1 > 0x000000000000004c ? b.eq 0x84 <pie_fixup_done> // b.none > ─── Breakpoints > ────────────────────────────────────────────────────────────────────────── > ────────────────────────────────────────────────────────────────────────── > ───────────────────────────────────────────────────────────────── > ─── Expressions > ────────────────────────────────────────────────────────────────────────── > ────────────────────────────────────────────────────────────────────────── > ───────────────────────────────────────────────────────────────── > ─── History > ────────────────────────────────────────────────────────────────────────── > ────────────────────────────────────────────────────────────────────────── > ───────────────────────────────────────────────────────────────────── > ─── Memory > ────────────────────────────────────────────────────────────────────────── > ────────────────────────────────────────────────────────────────────────── > ────────────────────────────────────────────────────────────────────── > ─── Registers > ────────────────────────────────────────────────────────────────────────── > ────────────────────────────────────────────────────────────────────────── > ─────────────────────────────────────────────────────────────────── > x0 0x0000000000000000 x1 0x0000000000000000 x2 0x0000000000000000 > x3 0x0000000000000000 x4 0x0000000000000000 x5 0x0000000000000000 > x6 0x0000000000000000 x7 0x0000000000000000 x8 0x0000000000000000 > x9 0x0000000000000000 x10 0x0000000000000000 x11 0x0000000000000000 > x12 0x0000000000000000 x13 0x0000000000000000 x14 0x0000000000000000 > x15 0x0000000000000000 x16 0x0000000000000000 x17 0x0000000000000000 > x18 0x0000000000000000 x19 0x0000000000000000 x20 0x0000000000000000 > x21 0x0000000000000000 x22 0x0000000000000000 x23 0x0000000000000000 > x24 0x0000000000000000 x25 0x0000000000000000 x26 0x0000000000000000 > x27 0x0000000000000000 x28 0x0000000000000000 x29 0x0000000000000000 > x30 0x0000000000000000 sp 0x0000000000000000 pc 0x0000000000000028 > cpsr 0x400003c5 fpsr 0x00000000 fpcr 0x00000000 > ─── Source > ────────────────────────────────────────────────────────────────────────── > ────────────────────────────────────────────────────────────────────────── > ────────────────────────────────────────────────────────────────────── > 52 _bss_end_ofs: > 53 .quad __bss_end - _start > 54 > 55 reset: > 56 /* Allow the board to save important registers */ > 57 b save_boot_params > 58 .globl save_boot_params_ret > 59 save_boot_params_ret: > 60 > 61 #if CONFIG_POSITION_INDEPENDENT > ─── Stack > ────────────────────────────────────────────────────────────────────────── > ────────────────────────────────────────────────────────────────────────── > ─────────────────────────────────────────────────────────────────────── > [0] from 0x0000000000000028 in reset at arch/arm/cpu/armv8/start.S:57 ─── > Threads > ────────────────────────────────────────────────────────────────────────── > ────────────────────────────────────────────────────────────────────────── > ────────────────────────────────────────────────────── > ─────────────── > [1] id 1 from 0x0000000000000028 in reset at arch/arm/cpu/armv8/start.S:57 > ─── Variables > ────────────────────────────────────────────────────────────────────────── > ────────────────────────────────────────────────────────────────────────── > ──────────────────────────────────────────────────── > ─────────────── > ──────────────────────────────────────────── > ──────────────────────────────────────────── > ──────────────────────────────────────────── > ──────────────────────────────────────────── > ──────────────────────────────────────────── > ───────── > >>> > > I'm not sure whether it's your wanted or not. > > Best Regards, > Jaehoon Chung > > > > > ckim@ckim-ubuntu:~/U-BOOT/u-boot$ readelf -S u-boot.elf There are 5 > > section headers, starting at offset 0xc8950: > > > > Section Headers: > > [Nr] Name Type Address Offset > > Size EntSize Flags Link Info Align > > [ 0] NULL 0000000000000000 00000000 > > 0000000000000000 0000000000000000 0 0 0 > > [ 1] .data PROGBITS 0000000000000000 00010000 > > 00000000000b8850 0000000000000000 WA 0 0 1 > > [ 2] .symtab SYMTAB 0000000000000000 000c8850 > > 0000000000000090 0000000000000018 3 2 8 > > [ 3] .strtab STRTAB 0000000000000000 000c88e0 > > 0000000000000049 0000000000000000 0 0 1 > > [ 4] .shstrtab STRTAB 0000000000000000 000c8929 > > 0000000000000021 0000000000000000 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), > > p (processor specific) > > > > And there are many configs including pattern "DEBUG" like > > CONFIG_DEBUG_UART_SANDBOX but it seems they are adding special debug > > features in the program behavior. What I want is to run the u-boot > > program itself in debug mode so that I can attach gdb and follow the > > program steps. (continue, step-in, step-out things..) > > > > Any comment will be very much appreciated. > > Thank you, and best regards, > > > > Chan Kim > > > >> -----Original Message----- > >> From: Jaehoon Chung <jh80.ch...@samsung.com> > >> Sent: Tuesday, October 19, 2021 12:26 PM > >> To: Chan Kim <c...@etri.re.kr>; U-Boot Mailing List > >> <u-boot@lists.denx.de> > >> Subject: Re: How to compile u-boot with debug option? > >> > >> On 10/19/21 11:21 AM, Chan Kim wrote: > >>> Hello, > >>> > >>> > >>> > >>> With these commands, > >>> > >>> make ARCH=arm CROSS_COMPILE=aarch64-none-elf- qemu_arm64_defconfig > >>> > >>> make ARCH=arm CROSS_COMPILE=aarch64-none-elf- > >>> > >>> I see only u-boot.bin. How can I make u-boot.elf with debug info? > >>> > >>> I found > >>> https://protect2.fireeye.com/v1/url?k=126d5a6e-4df662a4-126cd121-0cc > >>> 47 > >>> a31bee8-8e6c8ef0c2793943&q=1&e=4928b69d-166a-4647-b6c5-88bc2f73a780& > >>> u= > >>> https%3A%2F%2Flists.denx.de%2Fpipermail%2Fu-boot%2F2005-May%2F010240 > >>> .h > >>> tml and tried adding > >> > >> It's too old patch. It's not proper to current u-boot. > >> > >> make ARCH=arm menucofig and check config relevant to DEBUG option. > >> > >> Best Regards, > >> Jaehoon Chung > >> > >>> > >>> -DDEBUG to CFLAGS_NON_EFI in arch/arm/config.mk and adding CFLAGS += > >>> -DDEBUG in arch/arm/cpu/armv8/config.mk > >>> > >>> But after doing "make ARCH=arm CROSS_COMPILE=aarch64-none-elf- > >>> u-boot.elf", when I give file command for the u-boot.elf, it says > >>> > >>> > >>> > >>> u-boot.elf: ELF 64-bit LSB executable, ARM aarch64, version 1 > >>> (SYSV), statically linked, not stripped > >>> > >>> > >>> > >>> I think I should see "with debug_info, not stripped". With > >>> connecting gdb, I can't see the source file. The run responds to > >>> 'continue' command > >> though. > >>> > >>> Could any tell me what I can do? > >>> > >>> > >>> > >>> Thank you, > >>> > >>> Chan Kim > >>> > >>> > >>> > >>> > >> > > > > > > > > > >
