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flashstub: Fix ELF to hexdump conversion #2188

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flashstub: Fix ELF to hexdump conversion #2188

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51 changes: 46 additions & 5 deletions src/target/flashstub/meson.build
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Original file line number Diff line number Diff line change
Expand Up @@ -33,14 +33,16 @@ lmi_stub = []
efm32_stub = []
rp2040_stub = []

# If we're doing a firmware build, type to find hexdump
# If we're doing a firmware build, type to find hexdump and objcopy
if is_firmware_build
objcopy = find_program('objcopy', required: false)
hexdump = find_program('hexdump', required: false)
else
objcopy = disabler()
hexdump = disabler()
endif
# If we cannot or we're not a firmware build, we're done
if not hexdump.found()
if not hexdump.found() or not objcopy.found()
subdir_done()
endif

Expand Down Expand Up @@ -74,6 +76,19 @@ lmi_stub_elf = executable(
install: false,
)

lmi_stub_bin = custom_target(
'lmi_stub-bin',
command: [
objcopy,
'-Obinary',
'-j.text',
'@INPUT@',
'@OUTPUT@'
],
input: lmi_stub_elf,
output: 'lmi_stub_bin',
)
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@dragonmux dragonmux Feb 3, 2026

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Might as well make this lmi_stub.bin (and so forth for the others) so they have a file extension - but otherwise this looks good.


lmi_stub = custom_target(
'lmi_stub-hex',
command: [
Expand All @@ -82,7 +97,7 @@ lmi_stub = custom_target(
'-e', '/2 "0x%04X, "',
'@INPUT@'
],
input: lmi_stub_elf,
input: lmi_stub_bin,
output: 'lmi.stub',
capture: true,
)
Expand All @@ -105,6 +120,19 @@ efm32_stub_elf = executable(
install: false,
)

efm32_stub_bin = custom_target(
'efm32_stub-bin',
command: [
objcopy,
'-Obinary',
'-j.text',
'@INPUT@',
'@OUTPUT@'
],
input: efm32_stub_elf,
output: 'efm32_stub_bin',
)

efm32_stub = custom_target(
'efm32_stub-hex',
command: [
Expand All @@ -113,7 +141,7 @@ efm32_stub = custom_target(
'-e', '/2 "0x%04X, "',
'@INPUT@'
],
input: efm32_stub_elf,
input: efm32_stub_bin,
output: 'efm32.stub',
capture: true,
)
Expand All @@ -136,6 +164,19 @@ rp2040_stub_elf = executable(
install: false,
)

rp2040_stub_bin = custom_target(
'rp2040_stub-bin',
command: [
objcopy,
'-Obinary',
'-j.text',
'@INPUT@',
'@OUTPUT@'
],
input: rp2040_stub_elf,
output: 'rp2040_stub_bin',
)

rp2040_stub = custom_target(
'rp_stub-hex',
command: [
Expand All @@ -144,7 +185,7 @@ rp2040_stub = custom_target(
'-e', '/2 "0x%04X, "',
'@INPUT@'
],
input: rp2040_stub_elf,
input: rp2040_stub_bin,
output: 'rp.stub',
capture: true,
)
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