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arm_kernel_bothdr.awk: Update to latest ota

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The latest ota is the first one in FreeBSD that treats 0 + "0xf" as
being '0' instead of '15'. Don't use this old trick anymore to convert
from hexidecimal to a number. Write a function to do that instead. This
fixes kernel.bin building on arm*. awk on 14 doesn't need this, but to
build FreeBSD stable/14's kernel.bin on 15 we'll need it, so fast MFC.

MFC After:		3 days
Sponsored by:		Netflix
Reviewed by:		kevans
Differential Revision:  https://reviews.freebsd.org/D44801
This commit is contained in:
Warner Losh 2024-04-15 15:07:46 -06:00
parent f070188c3a
commit de22251127
1 changed files with 10 additions and 4 deletions
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14
sys/tools/arm_kernel_boothdr.awk
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@ -47,6 +47,10 @@ BEGIN {
}
gHdrType = hdrtype
for (i = 0; i < 16; i++) {
hex[sprintf("%x", i)] = i;
hex[sprintf("%X", i)] = i;
}
}
function addr_to_offset(addr) {
@ -56,11 +60,13 @@ function addr_to_offset(addr) {
function hexstr_to_num(str) {
# Prepend a 0x onto the string, then coerce it to a number by doing
# arithmetic with it, which makes awk run it through strtod(),
# which handles hex numbers that have a 0x prefix.
sum = 0;
len = length(str);
for (i = 1; i <= len; i++) {
sum = sum * 16 + hex[substr(str, i, 1)];
}
return 0 + ("0x" str)
return sum;
}
function write_le32(num) {