Databases
StackOverflow2013
Postsdbo
PO
 

Note that there are some explanatory texts on larger screens.

plurals
  1. PO
    primarykey
    data
    text
    <p>vectors.s</p> <pre><code>.globl _start _start: mov sp,#0x8000 bl main hang: b hang </code></pre> <p>main.s</p> <pre><code>.globl main main: mov r0,#2 bx lr </code></pre> <p>memmap (linker script)</p> <pre><code>MEMORY { ram : ORIGIN = 0x8000, LENGTH = 0x10000 } SECTIONS { .text : { *(.text*) } &gt; ram .bss : { *(.bss*) } &gt; ram } </code></pre> <p>commands</p> <pre><code>arm-none-eabi-as vectors.s -o vectors.o arm-none-eabi-as main.s -o main.o arm-none-eabi-ld vectors.o main.o -T memmap -o main.elf arm-none-eabi-objdump -D main.elf &gt; main.list arm-none-eabi-objcopy main.elf -O binary main.bin </code></pre> <p>result</p> <pre><code>main.elf: file format elf32-littlearm Disassembly of section .text: 00008000 &lt;_start&gt;: 8000: e3a0d902 mov sp, #32768 ; 0x8000 8004: eb000000 bl 800c &lt;main&gt; 00008008 &lt;hang&gt;: 8008: eafffffe b 8008 &lt;hang&gt; 0000800c &lt;main&gt;: 800c: e3a00002 mov r0, #2 8010: e12fff1e bx lr </code></pre> <p>If you want to use C instead of asm for main then</p> <p>main.c</p> <pre><code>int main ( void ) { return(2); } </code></pre> <p>commands</p> <pre><code>arm-none-eabi-as vectors.s -o vectors.o arm-none-eabi-gcc -Wall -Werror -O2 -nostdlib -nostartfiles -ffreestanding -c main.c -o main.o arm-none-eabi-ld vectors.o main.o -T memmap -o main.elf arm-none-eabi-objdump -D main.elf &gt; main.list arm-none-eabi-objcopy main.elf -O binary main.bin </code></pre> <p>result</p> <pre><code>main.elf: file format elf32-littlearm Disassembly of section .text: 00008000 &lt;_start&gt;: 8000: e3a0d902 mov sp, #32768 ; 0x8000 8004: eb000000 bl 800c &lt;main&gt; 00008008 &lt;hang&gt;: 8008: eafffffe b 8008 &lt;hang&gt; 0000800c &lt;main&gt;: 800c: e3a00002 mov r0, #2 8010: e12fff1e bx lr </code></pre> <p>I prefer to use a function name other than main because some compilers add extra baggage when they see that function name.</p> <p>vectors.s</p> <pre><code>.globl _start _start: mov sp,#0x8000 bl notmain hang: b hang </code></pre> <p>main.c</p> <pre><code>int notmain ( void ) { return(2); } </code></pre> <p>result</p> <pre><code>main.elf: file format elf32-littlearm Disassembly of section .text: 00008000 &lt;_start&gt;: 8000: e3a0d902 mov sp, #32768 ; 0x8000 8004: eb000000 bl 800c &lt;notmain&gt; 00008008 &lt;hang&gt;: 8008: eafffffe b 8008 &lt;hang&gt; 0000800c &lt;notmain&gt;: 800c: e3a00002 mov r0, #2 8010: e12fff1e bx lr </code></pre>
    singulars
    1. This table or related slice is empty.
    1. POHow to resolve crt0.o linking issue in cross compiling?
      singulars
      1. PTQuestion
    1. PTAnswer
    1. This table or related slice is empty.
    1. USold_timer
    plurals
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. POHow to resolve crt0.o linking issue in cross compiling?
      singulars
      1. PTQuestion
    1. This table or related slice is empty.
    1. VO
      singulars
      1. PO
      1. This table or related slice is empty.
      1. VTUpMod
    2. VO
      singulars
      1. PO
      1. This table or related slice is empty.
      1. VTUpMod
    3. VO
      singulars
      1. PO
      1. This table or related slice is empty.
      1. VTUpMod
    1. COYou have to be careful getting rid of crt0, you have to replace that functionality in some way (replace it or knowingly do without). I have more bare metal raspberry pi examples at http://github.com/dwelch67/raspberrypi
      singulars
      1. PO
      1. USold_timer
 

Querying!

 
Guidance
A row detail

Detail views are divided into sections. All the information in the data section comes from columns in the selected row. The other sections display data from other, related rows.

Related data can be related in a to-one or a to-many fashion. Captions of data related in a to-many fashion link to a list view showing a filtered view of the table.

Try moving around until you find a non-empty to-many entry and click on the label to get to one. You can move back to the root by clicking on the database name in the header.

SQuiL has stopped working due to an internal error.

If you are curious you may find further information in the browser console, which is accessible through the devtools (F12).

Reload