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| author | Joey Ye <joey.ye@arm.com> | 2013-11-19 10:00:46 +0000 |
|---|---|---|
| committer | Joey Ye <jye2@gcc.gnu.org> | 2013-11-19 10:00:46 +0000 |
| commit | 32d6e6c0f802264d4c5a6c99d5109d4cbb6f7337 (patch) | |
| tree | 8aea504c43370e1fdb28cd1b1c8baf8085b6e680 /gcc/config | |
| parent | cd0470594cbc319d4a179734b2d6247056d07afb (diff) | |
| download | gcc-32d6e6c0f802264d4c5a6c99d5109d4cbb6f7337.zip gcc-32d6e6c0f802264d4c5a6c99d5109d4cbb6f7337.tar.gz gcc-32d6e6c0f802264d4c5a6c99d5109d4cbb6f7337.tar.bz2 | |
arm.opt (-marm-pic-data-is-text-relative): New option.
2013-11-19 Joey Ye <joey.ye@arm.com>
* config/arm/arm.opt (-marm-pic-data-is-text-relative): New option.
* doc/invoke.texi (-marm-pic-data-is-text-relative): Documentation
for new option.
* config/arm/arm.c (arm_option_override): By default disable
-marm-pic-data-is-text-relative.
(legitimize_pic_address): Use arm_pic_data_is_text_relative.
(arm_assemble_integer): Likewise.
* config/arm/arm.h (TARGET_DEFAULT_PIC_DATA_IS_TEXT_RELATIVE):
New macro to initialize -marm-pic-data-is-text-relative.
From-SVN: r205016
Diffstat (limited to 'gcc/config')
| -rw-r--r-- | gcc/config/arm/arm.c | 8 | ||||
| -rw-r--r-- | gcc/config/arm/arm.h | 4 | ||||
| -rw-r--r-- | gcc/config/arm/arm.opt | 4 |
3 files changed, 14 insertions, 2 deletions
diff --git a/gcc/config/arm/arm.c b/gcc/config/arm/arm.c index 3ee27b4..a5bd010 100644 --- a/gcc/config/arm/arm.c +++ b/gcc/config/arm/arm.c @@ -2449,6 +2449,10 @@ arm_option_override (void) arm_pic_register = pic_register; } + if (TARGET_VXWORKS_RTP + && !global_options_set.x_arm_pic_data_is_text_relative) + arm_pic_data_is_text_relative = 0; + /* Enable -mfix-cortex-m3-ldrd by default for Cortex-M3 cores. */ if (fix_cm3_ldrd == 2) { @@ -5965,7 +5969,7 @@ legitimize_pic_address (rtx orig, enum machine_mode mode, rtx reg) || (GET_CODE (orig) == SYMBOL_REF && SYMBOL_REF_LOCAL_P (orig))) && NEED_GOT_RELOC - && !TARGET_VXWORKS_RTP) + && arm_pic_data_is_text_relative) insn = arm_pic_static_addr (orig, reg); else { @@ -21458,7 +21462,7 @@ arm_assemble_integer (rtx x, unsigned int size, int aligned_p) { /* See legitimize_pic_address for an explanation of the TARGET_VXWORKS_RTP check. */ - if (TARGET_VXWORKS_RTP + if (!arm_pic_data_is_text_relative || (GET_CODE (x) == SYMBOL_REF && !SYMBOL_REF_LOCAL_P (x))) fputs ("(GOT)", asm_out_file); else diff --git a/gcc/config/arm/arm.h b/gcc/config/arm/arm.h index 1781b75..dbd841e 100644 --- a/gcc/config/arm/arm.h +++ b/gcc/config/arm/arm.h @@ -568,6 +568,10 @@ extern int prefer_neon_for_64bits; #define NEED_PLT_RELOC 0 #endif +#ifndef TARGET_DEFAULT_PIC_DATA_IS_TEXT_RELATIVE +#define TARGET_DEFAULT_PIC_DATA_IS_TEXT_RELATIVE 1 +#endif + /* Nonzero if we need to refer to the GOT with a PC-relative offset. In other words, generate diff --git a/gcc/config/arm/arm.opt b/gcc/config/arm/arm.opt index 9b74038..fa0839a 100644 --- a/gcc/config/arm/arm.opt +++ b/gcc/config/arm/arm.opt @@ -158,6 +158,10 @@ mlong-calls Target Report Mask(LONG_CALLS) Generate call insns as indirect calls, if necessary +mpic-data-is-text-relative +Target Report Var(arm_pic_data_is_text_relative) Init(TARGET_DEFAULT_PIC_DATA_IS_TEXT_RELATIVE) +Assume data segments are relative to text segment. + mpic-register= Target RejectNegative Joined Var(arm_pic_register_string) Specify the register to be used for PIC addressing |