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Subject[PATCH v2] bloat-o-meter: provide 3 different arguments for data, function and all
Date
This patch provides 3 new arguments for bloat-o-meter:
1) -c -> for all (showing function and data differently).
2) -d -> data.
3) -t -> function.

output:-
./scripts/bloat-o-meter -c "file1" "file2"
add/remove: 0/0 grow/shrink: 0/1 up/down: 0/-152 (-152)
Function old new delta
main 412 260 -152
Total: Before=548, After=396, chg -27.74%
add/remove: 1/0 grow/shrink: 1/0 up/down: 84/0 (84)
Data old new delta
arr - 64 +64
backtrace 60 80 +20
Total: Before=109, After=193, chg +77.06%
add/remove: 0/1 grow/shrink: 0/0 up/down: 0/-64 (-64)
RO Data old new delta
arr 64 - -64
Total: Before=68, After=4, chg -94.12%

Signed-off-by: Vaneet Narang <v.narang@samsung.com>
Signed-off-by: Maninder Singh <maninder1.s@samsung.com>
---
v1 -> v2
1) Incorporated missed changes between 4.1 and latest version.
2) Removed extra noise of "#####" after each section print.
3) Removed extra parentheses from if and else caluse.

scripts/bloat-o-meter | 89 ++++++++++++++++++++++++++++++-------------------
1 files changed, 55 insertions(+), 34 deletions(-)

diff --git a/scripts/bloat-o-meter b/scripts/bloat-o-meter
index a276771..6f099f9 100755
--- a/scripts/bloat-o-meter
+++ b/scripts/bloat-o-meter
@@ -12,18 +12,22 @@ from signal import signal, SIGPIPE, SIG_DFL

signal(SIGPIPE, SIG_DFL)

-if len(sys.argv) != 3:
- sys.stderr.write("usage: %s file1 file2\n" % sys.argv[0])
+if len(sys.argv) < 3:
+ sys.stderr.write("usage: %s [option] file1 file2\n" % sys.argv[0])
+ sys.stderr.write("The options are:\n")
+ sys.stderr.write("-c cateogrize output based on symbole type\n")
+ sys.stderr.write("-d Show delta of Data Section\n")
+ sys.stderr.write("-t Show delta of text Section\n")
sys.exit(-1)

re_NUMBER = re.compile(r'\.[0-9]+')

-def getsizes(file):
+def getsizes(file, format):
sym = {}
with os.popen("nm --size-sort " + file) as f:
for line in f:
size, type, name = line.split()
- if type in "tTdDbBrR":
+ if type in format:
# strip generated symbols
if name.startswith("__mod_"): continue
if name.startswith("SyS_"): continue
@@ -34,44 +38,61 @@ def getsizes(file):
sym[name] = sym.get(name, 0) + int(size, 16)
return sym

-old = getsizes(sys.argv[1])
-new = getsizes(sys.argv[2])
-grow, shrink, add, remove, up, down = 0, 0, 0, 0, 0, 0
-delta, common = [], {}
-otot, ntot = 0, 0
+def calc(oldfile, newfile, format):
+ old = getsizes(oldfile, format)
+ new = getsizes(newfile, format)
+ grow, shrink, add, remove, up, down = 0, 0, 0, 0, 0, 0
+ delta, common = [], {}
+ otot, ntot = 0, 0

-for a in old:
- if a in new:
- common[a] = 1
+ for a in old:
+ if a in new:
+ common[a] = 1

-for name in old:
- otot += old[name]
- if name not in common:
- remove += 1
- down += old[name]
- delta.append((-old[name], name))
+ for name in old:
+ otot += old[name]
+ if name not in common:
+ remove += 1
+ down += old[name]
+ delta.append((-old[name], name))

-for name in new:
- ntot += new[name]
- if name not in common:
- add += 1
- up += new[name]
- delta.append((new[name], name))
+ for name in new:
+ ntot += new[name]
+ if name not in common:
+ add += 1
+ up += new[name]
+ delta.append((new[name], name))

-for name in common:
+ for name in common:
d = new.get(name, 0) - old.get(name, 0)
if d>0: grow, up = grow+1, up+d
if d<0: shrink, down = shrink+1, down-d
delta.append((d, name))

-delta.sort()
-delta.reverse()
+ delta.sort()
+ delta.reverse()
+ return grow, shrink, add, remove, up, down, delta, old, new, otot, ntot

-print("add/remove: %s/%s grow/shrink: %s/%s up/down: %s/%s (%s)" % \
- (add, remove, grow, shrink, up, -down, up-down))
-print("%-40s %7s %7s %+7s" % ("function", "old", "new", "delta"))
-for d, n in delta:
- if d: print("%-40s %7s %7s %+7d" % (n, old.get(n,"-"), new.get(n,"-"), d))
+def print_result(symboltype, symbolformat, argc):
+ grow, shrink, add, remove, up, down, delta, old, new, otot, ntot = \
+ calc(sys.argv[argc - 1], sys.argv[argc], symbolformat)

-print("Total: Before=%d, After=%d, chg %+.2f%%" % \
- (otot, ntot, (ntot - otot)*100.0/otot))
+ print("add/remove: %s/%s grow/shrink: %s/%s up/down: %s/%s (%s)" % \
+ (add, remove, grow, shrink, up, -down, up-down))
+ print("%-40s %7s %7s %+7s" % (symboltype, "old", "new", "delta"))
+ for d, n in delta:
+ if d: print("%-40s %7s %7s %+7d" % (n, old.get(n,"-"), new.get(n,"-"), d))
+
+ print("Total: Before=%d, After=%d, chg %+.2f%%" % \
+ (otot, ntot, (ntot - otot)*100.0/otot))
+
+if sys.argv[1] == "-c":
+ print_result("Function", "tT", 3)
+ print_result("Data", "dDbB", 3)
+ print_result("RO Data", "rR", 3)
+elif sys.argv[1] == "-d":
+ print_result("Data", "dDbBrR", 3)
+elif sys.argv[1] == "-t":
+ print_result("Function", "tT", 3)
+else:
+ print_result("Function", "tTdDbBrR", 2)
--
1.7.1
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