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| author | Joseph Myers <joseph@codesourcery.com> | 2015-11-12 12:09:24 +0000 |
|---|---|---|
| committer | Joseph Myers <joseph@codesourcery.com> | 2015-11-12 12:09:24 +0000 |
| commit | e6459123e497409a9e3d845c39829a9602ba55a4 (patch) | |
| tree | 02b10e8d0685cc199901696efeb886532f22042c /newlib/libc/machine/arm/strcmp-armv6m.S | |
| parent | 4998ac43411001a4757537b0312443493cf69112 (diff) | |
| download | cygnal-e6459123e497409a9e3d845c39829a9602ba55a4.tar.gz cygnal-e6459123e497409a9e3d845c39829a9602ba55a4.tar.bz2 cygnal-e6459123e497409a9e3d845c39829a9602ba55a4.zip | |
Avoid .eh_frame in ARM newlib.
ARM newlib has various strcmp implementations that use .cfi_*
directives to generate unwind information.
The effect of this is that the generated objects contain .eh_frame
sections. However, ARM uses its own unwind info format, not
.eh_frame, which is generated by ARM-specific directives, not .cfi_*.
The .eh_frame sections are useless, but also not removed by strip and
may be loaded into memory at runtime.
This patch fixes this by using .cfi_sections .debug_frame (as in
glibc) so that the directives generate .debug_frame instead.
.debug_frame is useful for the debugger, can be removed by strip, and
is not loaded into memory at runtime.
* libc/machine/arm/strcmp-arm-tiny.S: Use .cfi_sections
.debug_frame.
* libc/machine/arm/strcmp-armv4.S: Likewise.
* libc/machine/arm/strcmp-armv4t.S: Likewise.
* libc/machine/arm/strcmp-armv6.S: Likewise.
* libc/machine/arm/strcmp-armv6m.S: Likewise.
* libc/machine/arm/strcmp-armv7.S: Likewise.
* libc/machine/arm/strcmp-armv7m.S: Likewise.
Diffstat (limited to 'newlib/libc/machine/arm/strcmp-armv6m.S')
| -rw-r--r-- | newlib/libc/machine/arm/strcmp-armv6m.S | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/newlib/libc/machine/arm/strcmp-armv6m.S b/newlib/libc/machine/arm/strcmp-armv6m.S index 932841d19..74f87cba2 100644 --- a/newlib/libc/machine/arm/strcmp-armv6m.S +++ b/newlib/libc/machine/arm/strcmp-armv6m.S @@ -53,6 +53,7 @@ .text def_fn strcmp + .cfi_sections .debug_frame .cfi_startproc mov r2, r0 push {r4, r5, r6, lr} |