scripts: gen_relocate_app.py: Replace quoted section name with wildcard.

[iabdalkader]

ld seems to treat quotes in section names as literal characters, which makes it fail to match section names outputted by this script. This fix replaces quoted section names with a wildcard, which matches the section correctly.

Fixes #49155

Context: I'm trying to relocate the kernel heap to another SRAM, using CONFIG_CODE_DATA_RELOCATION. In CMakeLists.txt I have the following:

zephyr_code_relocate(FILES ${ZEPHYR_BASE}/kernel/mempool.c LOCATION SRAM2_BSS_NOINIT)

The generated linker scripts seems to have the right section in SRAM2. Note that the section name is quoted:

 .sram2_noinit_reloc (NOLOAD) :
        {
                . = ALIGN(4);
                KEEP(*mempool.c.obj(.noinit."WEST_TOPDIR/zephyr/kernel/mempool.c".kheap_buf__system_heap))
                . = ALIGN(4);
 } > SRAM2 AT > SRAM2

In the final elf, the section is empty because ld fails to match it:

  .sram2_noinit_reloc
                  0x0000000030020000        0x0
                  0x0000000030020000                . = ALIGN (0x4)
   *mempool.c.obj(SORT_BY_ALIGNMENT(.noinit.) SORT_BY_ALIGNMENT(WEST_TOPDIR/zephyr/kernel/mempool.c)

With this patch:

.sram2_noinit_reloc
                0x0000000030020000    0x20000
                0x0000000030020000                . = ALIGN (0x4)
 *mempool.c.obj(SORT_BY_ALIGNMENT(.noinit.*.kheap_buf__system_heap))
 .noinit."WEST_TOPDIR/zephyr/kernel/mempool.c".kheap_buf__system_heap

[sonarqubecloud]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarQube Cloud

[tejlmand]

thanks for the fix, but I would like to get a better understanding of when this started to fail, cause it looks like a regression.

[tejlmand]

I would like to have this fixed before entering the script.

I wonder how / when this issue first started to appear.

[iabdalkader]

thanks for the fix, but I would like to get a better understanding of when this started to fail, cause it looks like a regression.

This is the first time I try this, so I'm not sure if it ever worked before. Maybe it was never tested on files that have sections with quotes?

[pdgendt]

thanks for the fix, but I would like to get a better understanding of when this started to fail, cause it looks like a regression.

@tejlmand it has been an issue for a long time, see #49155