mips16.S (CE_STARTFN, CE_ENDFN): New macros.
* config/mips/mips16.S (CE_STARTFN, CE_ENDFN): New macros. (RET_FUNCTION): Use them in place of STARTFN and ENDFN. (CALL_STUB_NO_RET): Likewise. (CALL_STUB_RET): Likewise. * config/mips/libgcc-mips16.ver: Remove __mips16_call_stub and __mips16_ret call/return stub symbols. * config.host <mips*-*-linux>: For non-R5900 add t-slibgcc-libgcc to tmake_file. Co-Authored-By: Catherine Moore <clm@codesourcery.com> Co-Authored-By: Richard Sandiford <rdsandiford@googlemail.com> From-SVN: r201805
This commit is contained in:
Maciej W. Rozycki
Maciej W. Rozycki
parent
c74f54a0c1
commit
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@ -1,3 +1,16 @@
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2013-08-16 Maciej W. Rozycki <macro@codesourcery.com>
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Catherine Moore <clm@codesourcery.com>
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Richard Sandiford <rdsandiford@googlemail.com>
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* config/mips/mips16.S (CE_STARTFN, CE_ENDFN): New macros.
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(RET_FUNCTION): Use them in place of STARTFN and ENDFN.
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(CALL_STUB_NO_RET): Likewise.
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(CALL_STUB_RET): Likewise.
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* config/mips/libgcc-mips16.ver: Remove __mips16_call_stub and
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__mips16_ret call/return stub symbols.
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* config.host <mips*-*-linux>: For non-R5900 add t-slibgcc-libgcc
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to tmake_file.
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2013-08-13 Maciej W. Rozycki <macro@codesourcery.com>
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* config.host <mips*-*-linux*>: Remove a stray comment.
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@ -741,13 +741,13 @@ mips*-*-linux*) # Linux MIPS, either endian.
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extra_parts="$extra_parts crtfastmath.o"
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tmake_file="${tmake_file} t-crtfm"
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case ${host} in
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mips64r5900* | mipsr5900*)
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# The MIPS16 support code uses floating point
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# instructions that are not supported on r5900.
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;;
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*)
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tmake_file="${tmake_file} mips/t-mips16"
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;;
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mips64r5900* | mipsr5900*)
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# The MIPS16 support code uses floating point
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# instructions that are not supported on r5900.
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;;
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*)
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tmake_file="${tmake_file} mips/t-mips16 t-slibgcc-libgcc"
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;;
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esac
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md_unwind_header=mips/linux-unwind.h
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if test "${ac_cv_sizeof_long_double}" = 16; then
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@ -45,42 +45,4 @@ GCC_4.4.0 {
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__mips16_floatsidf
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__mips16_floatunsidf
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__mips16_fix_truncdfsi
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__mips16_ret_sf
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__mips16_ret_sc
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__mips16_ret_df
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__mips16_ret_dc
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__mips16_call_stub_1
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__mips16_call_stub_5
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__mips16_call_stub_2
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__mips16_call_stub_6
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__mips16_call_stub_9
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__mips16_call_stub_10
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__mips16_call_stub_sf_0
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__mips16_call_stub_sf_1
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__mips16_call_stub_sf_5
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__mips16_call_stub_sf_2
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__mips16_call_stub_sf_6
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__mips16_call_stub_sf_9
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__mips16_call_stub_sf_10
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__mips16_call_stub_sc_0
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__mips16_call_stub_sc_1
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__mips16_call_stub_sc_5
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__mips16_call_stub_sc_2
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__mips16_call_stub_sc_6
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__mips16_call_stub_sc_9
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__mips16_call_stub_sc_10
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__mips16_call_stub_df_0
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__mips16_call_stub_df_1
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__mips16_call_stub_df_5
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__mips16_call_stub_df_2
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__mips16_call_stub_df_6
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__mips16_call_stub_df_9
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__mips16_call_stub_df_10
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__mips16_call_stub_dc_0
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__mips16_call_stub_dc_1
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__mips16_call_stub_dc_5
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__mips16_call_stub_dc_2
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__mips16_call_stub_dc_6
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__mips16_call_stub_dc_9
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__mips16_call_stub_dc_10
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}
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@ -479,13 +479,35 @@ STARTFN (__mips16_fix_truncdfsi)
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#endif
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#endif /* !__mips_single_float */
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/* We don't export stubs from libgcc_s.so and always require static
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versions to be pulled from libgcc.a as needed because they use $2
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and possibly $3 as arguments, diverging from the standard SysV ABI,
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and as such would require severe pessimisation of MIPS16 PLT entries
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just for this single special case.
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For compatibility with old binaries that used safe standard MIPS PLT
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entries and referred to these functions we still export them at
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version GCC_4.4.0 for run-time loading only. */
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#ifdef SHARED
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#define CE_STARTFN(NAME) \
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STARTFN (NAME##_compat); \
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.symver NAME##_compat, NAME@GCC_4.4.0
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#define CE_ENDFN(NAME) ENDFN (NAME##_compat)
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#else
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#define CE_STARTFN(NAME) \
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STARTFN (NAME); \
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.hidden NAME
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#define CE_ENDFN(NAME) ENDFN (NAME)
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#endif
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/* Define a function NAME that moves a return value of mode MODE from
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FPRs to GPRs. */
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#define RET_FUNCTION(NAME, MODE) \
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STARTFN (NAME); \
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CE_STARTFN (NAME); \
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MOVE_##MODE##_RET (t, $31); \
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ENDFN (NAME)
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CE_ENDFN (NAME)
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#ifdef L_m16retsf
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RET_FUNCTION (__mips16_ret_sf, SF)
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@ -526,13 +548,13 @@ RET_FUNCTION (__mips16_ret_dc, DC)
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to FPRs and then call function $2. */
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#define CALL_STUB_NO_RET(NAME, CODE) \
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STARTFN (NAME); \
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CE_STARTFN (NAME); \
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STUB_ARGS_##CODE; \
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.set noreorder; \
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jr $2; \
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move $25,$2; \
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.set reorder; \
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ENDFN (NAME)
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CE_ENDFN (NAME)
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#ifdef L_m16stub1
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CALL_STUB_NO_RET (__mips16_call_stub_1, 1)
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@ -575,7 +597,7 @@ CALL_STUB_NO_RET (__mips16_call_stub_10, 10)
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however, it's faster to always do the copy. */
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#define CALL_STUB_RET(NAME, CODE, MODE) \
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STARTFN (NAME); \
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CE_STARTFN (NAME); \
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.cfi_startproc; \
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/* Create a fake CFA 4 bytes below the stack pointer. */ \
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.cfi_def_cfa 29,-4; \
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@ -591,7 +613,7 @@ STARTFN (NAME); \
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.set reorder; \
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MOVE_##MODE##_RET (f, $18); \
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.cfi_endproc; \
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ENDFN (NAME)
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CE_ENDFN (NAME)
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/* First, instantiate the single-float set. */
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