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[Bug gas/18451] New: Inefficient .strtab implementation


From: hjl.tools at gmail dot com
Subject: [Bug gas/18451] New: Inefficient .strtab implementation
Date: Sat, 23 May 2015 14:22:42 +0000

https://sourceware.org/bugzilla/show_bug.cgi?id=18451

            Bug ID: 18451
           Summary: Inefficient .strtab implementation
           Product: binutils
           Version: 2.26 (HEAD)
            Status: NEW
          Severity: normal
          Priority: P2
         Component: gas
          Assignee: unassigned at sourceware dot org
          Reporter: hjl.tools at gmail dot com
  Target Milestone: ---

address@hidden strtab-1]$ cat x.S
#define GLOBAL(x) .globl x; x
        .text
GLOBAL(x):
GLOBAL(xx):
GLOBAL(xxx):
GLOBAL(xxxx):
GLOBAL(xxxxx):
GLOBAL(xxxxxx):
        mov %eax,%edx
address@hidden strtab-1]$ gcc -c x.S
address@hidden strtab-1]$ readelf -x 6 x.o

Hex dump of section '.strtab':
  0x00000000 00780078 78007878 78007878 78780078 .x.xx.xxx.xxxx.x
  0x00000010 78787878 00787878 78787800          xxxx.xxxxxx.

address@hidden strtab-1]$ 

They can share a single "xxxxxx" entry.

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