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| author | Lai Wei-Chih <Robert.Lai@mediatek.com> | 2013-08-01 15:09:46 +0800 |
|---|---|---|
| committer | Andrew Hsieh <andrewhsieh@google.com> | 2013-08-02 09:16:10 +0800 |
| commit | a3529b2d6b2bcc7136fd67e00e539301942e74d1 (patch) | |
| tree | 3a65fd83e08762984d1721884e17215244460b14 /gcc-4.6/gcc/config/arm/arm.opt | |
| parent | 15ba1ff9c0885836175afdcd03701e5a3e514ae1 (diff) | |
| download | toolchain_gcc-a3529b2d6b2bcc7136fd67e00e539301942e74d1.tar.gz toolchain_gcc-a3529b2d6b2bcc7136fd67e00e539301942e74d1.tar.bz2 toolchain_gcc-a3529b2d6b2bcc7136fd67e00e539301942e74d1.zip | |
Add an internal switch -minline-thumb1-jumptable to ARM gcc4.6/4.7/4.8
Default is off (ie. no changes of behavior), meaning that gcc may
generate thumb1 jumptable helper calls (eg. __gnu_thumb1_case_sqi) for
switch/case.
Use -minline-thumb1-jumptable to compile code which can be linked
with compiler-rt where helper __gnu_thumb1_case_* doesn't exist.
This is mainly for use to compile NDK gabi++/stlport/libc++ to be
independent of libgcc.a. The only affected binaries are all
in armeabi. ABIs armeabi-v7a and x86/mips aren't affected. Size
differences are
libgabi++_static.a 176286 -> 176538 +0.1%
libstlport_static.a 1406346 -> 1413318 +0.5%
libc++_static.a 2426814 -> 2439074 +0.5%
Change-Id: I582898955b28e53e988a91bc1a64b76fba677e58
Diffstat (limited to 'gcc-4.6/gcc/config/arm/arm.opt')
| -rw-r--r-- | gcc-4.6/gcc/config/arm/arm.opt | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/gcc-4.6/gcc/config/arm/arm.opt b/gcc-4.6/gcc/config/arm/arm.opt index a39bb3a8d..a7ab693b3 100644 --- a/gcc-4.6/gcc/config/arm/arm.opt +++ b/gcc-4.6/gcc/config/arm/arm.opt @@ -137,6 +137,10 @@ mthumb-interwork Target Report Mask(INTERWORK) Support calls between Thumb and ARM instruction sets +minline-thumb1-jumptable +Target Report Var(inline_thumb1_jump_table) +Inline Thumb1 Jump table code + mtp= Target RejectNegative Joined Var(target_thread_switch) Specify how to access the thread pointer |