Hi Ard, On lun., oct. 30 2017, Ard Biesheuvel <ard.biesheu...@linaro.org> wrote:
> On 30 October 2017 at 15:09, Gregory CLEMENT > <gregory.clem...@free-electrons.com> wrote: >> Hi Ard, >> >> On lun., oct. 30 2017, Ard Biesheuvel <ard.biesheu...@linaro.org> wrote: >> >>> On 30 October 2017 at 15:05, Gregory CLEMENT >>> <gregory.clem...@free-electrons.com> wrote: >>>> Hi Ard, >>>> >>>> On lun., oct. 30 2017, Ard Biesheuvel <ard.biesheu...@linaro.org> wrote: >>>> >>> ... >>>>> >>>>> Could you please share the output of 'readelf -S' for those vmlinux >>>>> decompressor images? >>>> >>>> Here it is: >>>> >>>> In the meantime I also used an arm-linux-gnueabihf- in case it could be >>>> related to the toolchain, I had te same issue and here it is the readelf >>>> output: >>>> arm-linux-gnueabi-readelf -S ../build/vmlinux >>> >>> Actually, I meant the 'vmlinux' file in arch/arm/boot/compressed, not >>> the main one. >> >> Here it is then: >> >> arm-linux-gnueabi-readelf -S ../build/arch/arm/boot/compressed/vmlinux >> There are 22 section headers, starting at offset 0x4b3e14: >> >> Section Headers: >> [Nr] Name Type Addr Off Size ES Flg Lk >> Inf Al >> [ 0] NULL 00000000 000000 000000 00 0 >> 0 0 >> [ 1] .text PROGBITS 00000000 010000 005ef8 00 AX 0 >> 0 32 >> [ 2] .rodata PROGBITS 00005ef8 015ef8 000d4c 00 A 0 >> 0 4 >> [ 3] .piggydata PROGBITS 00006c44 016c44 48a33a 00 A 0 >> 0 1 >> [ 4] .got.plt PROGBITS 00490f80 4a0f80 00000c 04 WA 0 >> 0 4 >> [ 5] .got PROGBITS 00490f8c 4a0f8c 000028 00 WA 0 >> 0 4 >> [ 6] .pad PROGBITS 00490fb4 4a0fb4 000004 00 WA 0 >> 0 1 >> [ 7] .bss NOBITS 00490fb8 4a0fb8 00001c 00 WA 0 >> 0 4 >> [ 8] .stack NOBITS 00490fd8 4a0fb8 001000 00 WA 0 >> 0 1 >> [ 9] .comment PROGBITS 00000000 4a0fb8 00001c 01 MS 0 >> 0 1 >> [10] .ARM.attributes ARM_ATTRIBUTES 00000000 4a0fd4 00002d 00 0 >> 0 1 >> [11] .debug_line PROGBITS 00000000 4a1001 00281b 00 0 >> 0 1 >> [12] .debug_info PROGBITS 00000000 4a381c 0066cb 00 0 >> 0 1 >> [13] .debug_abbrev PROGBITS 00000000 4a9ee7 0013ea 00 0 >> 0 1 >> [14] .debug_aranges PROGBITS 00000000 4ab2d8 0001a8 00 0 >> 0 8 >> [15] .debug_str PROGBITS 00000000 4ab480 0019b4 01 MS 0 >> 0 1 >> [16] .debug_ranges PROGBITS 00000000 4ace38 000640 00 0 >> 0 8 >> [17] .debug_frame PROGBITS 00000000 4ad478 001010 00 0 >> 0 4 >> [18] .debug_loc PROGBITS 00000000 4ae488 003643 00 0 >> 0 1 >> [19] .symtab SYMTAB 00000000 4b1acc 0015b0 10 20 >> 225 4 >> [20] .strtab STRTAB 00000000 4b307c 000cc5 00 0 >> 0 1 >> [21] .shstrtab STRTAB 00000000 4b3d41 0000d2 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), >> y (purecode), p (processor specific) >> > > And this is from the build the build that generated the linker assert? Humm no, actually it was with the wrong branch. If I have the patch "ARM: verify size of zImage" then arch/arm/boot/compressed/vmlinux is not generated. But if I remove this patch then I can generate this file and so: arm-linux-gnueabi-readelf -S ../build/arch/arm/boot/compressed/vmlinux There are 22 section headers, starting at offset 0x4b402c: Section Headers: [Nr] Name Type Addr Off Size ES Flg Lk Inf Al [ 0] NULL 00000000 000000 000000 00 0 0 0 [ 1] .text PROGBITS 00000000 010000 005ef8 00 AX 0 0 32 [ 2] .rodata PROGBITS 00005ef8 015ef8 000d4c 00 A 0 0 4 [ 3] .piggydata PROGBITS 00006c44 016c44 48a552 00 A 0 0 1 [ 4] .got.plt PROGBITS 00491198 4a1198 00000c 04 WA 0 0 4 [ 5] .got PROGBITS 004911a4 4a11a4 000028 00 WA 0 0 4 [ 6] .pad PROGBITS 004911cc 4a11cc 000004 00 WA 0 0 1 [ 7] .bss NOBITS 004911d0 4a11d0 00001c 00 WA 0 0 4 [ 8] .stack NOBITS 004911f0 4a11d0 001000 00 WA 0 0 1 [ 9] .comment PROGBITS 00000000 4a11d0 00001c 01 MS 0 0 1 [10] .ARM.attributes ARM_ATTRIBUTES 00000000 4a11ec 00002d 00 0 0 1 [11] .debug_line PROGBITS 00000000 4a1219 00281b 00 0 0 1 [12] .debug_info PROGBITS 00000000 4a3a34 0066cb 00 0 0 1 [13] .debug_abbrev PROGBITS 00000000 4aa0ff 0013ea 00 0 0 1 [14] .debug_aranges PROGBITS 00000000 4ab4f0 0001a8 00 0 0 8 [15] .debug_str PROGBITS 00000000 4ab698 0019b4 01 MS 0 0 1 [16] .debug_ranges PROGBITS 00000000 4ad050 000640 00 0 0 8 [17] .debug_frame PROGBITS 00000000 4ad690 001010 00 0 0 4 [18] .debug_loc PROGBITS 00000000 4ae6a0 003643 00 0 0 1 [19] .symtab SYMTAB 00000000 4b1ce4 0015b0 10 20 225 4 [20] .strtab STRTAB 00000000 4b3294 000cc5 00 0 0 1 [21] .shstrtab STRTAB 00000000 4b3f59 0000d2 00 0 0 1 > > Could you check the value of _edata in the output of 'nm vmlinux' > please? With this kernel: arm-linux-gnueabi-nm ../build/arch/arm/boot/compressed/vmlinux | grep _edata 004911d0 D _edata Gregory > > _______________________________________________ > linux-arm-kernel mailing list > linux-arm-ker...@lists.infradead.org > http://lists.infradead.org/mailman/listinfo/linux-arm-kernel -- Gregory Clement, Free Electrons Kernel, drivers, real-time and embedded Linux development, consulting, training and support. http://free-electrons.com
