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| author | H.J. Lu <hjl.tools@gmail.com> | 2015-10-22 12:17:43 -0700 |
|---|---|---|
| committer | H.J. Lu <hjl.tools@gmail.com> | 2015-10-22 12:23:03 -0700 |
| commit | bba037e0aef1f3b17cc6cf6fd041ed6110cc375a (patch) | |
| tree | 6f2fad132412629daaf56228009b62eb7c9e4914 /ld/testsuite/ld-gc | |
| parent | d236ad1955a0a6b5203bc1474b989fd9dba668f8 (diff) | |
| download | gdb-bba037e0aef1f3b17cc6cf6fd041ed6110cc375a.zip gdb-bba037e0aef1f3b17cc6cf6fd041ed6110cc375a.tar.gz gdb-bba037e0aef1f3b17cc6cf6fd041ed6110cc375a.tar.bz2 | |
Always keep sections marked with SEC_KEEP
SEC_KEEP check in elf_gc_sweep was missing in commit:
commit bde6f3eb6dff94cea1d471e15c6154d55d49820f
Author: H.J. Lu <hjl.tools@gmail.com>
Date: Fri Jan 8 01:43:23 2010 +0000
Set SEC_KEEP on section XXX for undefined __start_XXX/__stop_XXX
bfd/
2010-01-07 H.J. Lu <hongjiu.lu@intel.com>
PR ld/11133
* elflink.c (_bfd_elf_gc_mark_hook): Check section XXX for
undefined __start_XXX/__stop_XXX in all input files and set
SEC_KEEP.
This patch adds SEC_KEEP check to elf_gc_sweep.
bfd/
PR ld/19161
* elflink.c (elf_gc_sweep): Always keep sections marked with
SEC_KEEP.
ld/testsuite/
PR ld/19161
* ld-gc/gc.exp: Run pr19161 test.
* ld-gc/pr19161-1.c: New file.
* ld-gc/pr19161-2.c: Likewise.
* ld-gc/pr19161.d: Likewise.
Diffstat (limited to 'ld/testsuite/ld-gc')
| -rw-r--r-- | ld/testsuite/ld-gc/gc.exp | 6 | ||||
| -rw-r--r-- | ld/testsuite/ld-gc/pr19161-1.c | 7 | ||||
| -rw-r--r-- | ld/testsuite/ld-gc/pr19161-2.c | 19 | ||||
| -rw-r--r-- | ld/testsuite/ld-gc/pr19161.d | 9 |
4 files changed, 41 insertions, 0 deletions
diff --git a/ld/testsuite/ld-gc/gc.exp b/ld/testsuite/ld-gc/gc.exp index b2a3450..f7438d4 100644 --- a/ld/testsuite/ld-gc/gc.exp +++ b/ld/testsuite/ld-gc/gc.exp @@ -139,3 +139,9 @@ if { [is_remote host] || [which $CC] != 0 } { ld_compile "$CC $CFLAGS $cflags" $srcdir/$subdir/pr14265.c tmpdir/pr14265.o run_dump_test "pr14265" } + +if { [is_remote host] || [which $CC] != 0 } { + ld_compile "$CC $CFLAGS $cflags -O0" $srcdir/$subdir/pr19161-1.c tmpdir/pr19161-1.o + ld_compile "$CC $CFLAGS $cflags -O0" $srcdir/$subdir/pr19161-2.c tmpdir/pr19161-2.o + run_dump_test "pr19161" +} diff --git a/ld/testsuite/ld-gc/pr19161-1.c b/ld/testsuite/ld-gc/pr19161-1.c new file mode 100644 index 0000000..519948e --- /dev/null +++ b/ld/testsuite/ld-gc/pr19161-1.c @@ -0,0 +1,7 @@ +int (*p)(void); + +int +main () +{ + return p () != 0x1234; +} diff --git a/ld/testsuite/ld-gc/pr19161-2.c b/ld/testsuite/ld-gc/pr19161-2.c new file mode 100644 index 0000000..b51f31a --- /dev/null +++ b/ld/testsuite/ld-gc/pr19161-2.c @@ -0,0 +1,19 @@ +int __attribute__((section("my_section"))) a[2] = {0x1234, 0x5678}; + +extern int __start_my_section; + +extern int (*p)(void); + +int +dump() +{ + int* ap = &__start_my_section; + return ap[0]; +} + +void +__attribute__((constructor)) +foo() +{ + p = dump; +} diff --git a/ld/testsuite/ld-gc/pr19161.d b/ld/testsuite/ld-gc/pr19161.d new file mode 100644 index 0000000..64b17e0 --- /dev/null +++ b/ld/testsuite/ld-gc/pr19161.d @@ -0,0 +1,9 @@ +#name: --gc-sections with __start_SECTIONNAME +#source: dummy.s +#ld: --gc-sections -e main tmpdir/pr19161-1.o tmpdir/pr19161-2.o +#nm: --format=bsd +#xfail: sh64*-*-* iq2000-*-* lm32-*-* epiphany-*-* mips64vr-*-* frv-*-* m32c-*-* rl78-*-* rx-*-* sh-*-* powerpc*-*-eabivle msp430-*-* + +#... +0*[1-9a-f]+[0-9a-f]*[ ](D)[ ]_*__start_my_section +#... |