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kpatch-build: support older gawk regex

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Support for gawk '\s' (whitespace) GNU Regexp Operator was added
somewhere between gawk 3 and 4 (RHEL6 and RHEL7).  Use the [[:space:]]
bracket expression to support older releases of gawk.
This commit is contained in:
Joe Lawrence 2017-02-06 16:00:09 -05:00
parent c54b64aa7b
commit bcd1ee3324
1 changed files with 4 additions and 4 deletions
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kpatch-build/kpatch-build
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@ -516,10 +516,10 @@ echo "Reading special section data"
SPECIAL_VARS=$(readelf -wi "$VMLINUX" |
gawk --non-decimal-data '
BEGIN { a = b = p = e = 0 }
a == 0 && /DW_AT_name.* alt_instr\s*$/ {a = 1; next}
b == 0 && /DW_AT_name.* bug_entry\s*$/ {b = 1; next}
p == 0 && /DW_AT_name.* paravirt_patch_site\s*$/ {p = 1; next}
e == 0 && /DW_AT_name.* exception_table_entry\s*$/ {e = 1; next}
a == 0 && /DW_AT_name.* alt_instr[[:space:]]*$/ {a = 1; next}
b == 0 && /DW_AT_name.* bug_entry[[:space:]]*$/ {b = 1; next}
p == 0 && /DW_AT_name.* paravirt_patch_site[[:space:]]*$/ {p = 1; next}
e == 0 && /DW_AT_name.* exception_table_entry[[:space:]]*$/ {e = 1; next}
a == 1 {printf("export ALT_STRUCT_SIZE=%d\n", $4); a = 2}
b == 1 {printf("export BUG_STRUCT_SIZE=%d\n", $4); b = 2}
p == 1 {printf("export PARA_STRUCT_SIZE=%d\n", $4); p = 2}