diff options
| author | Wolfram Sang <wsa@the-dreams.de> | 2019-02-14 17:46:56 +0100 |
|---|---|---|
| committer | Wolfram Sang <wsa@the-dreams.de> | 2019-02-14 17:46:56 +0100 |
| commit | 338618ad2a01b821a34e089a6607143fb283dee3 (patch) | |
| tree | adf9aff96a5a087c820251f3eb09928b3271b007 /scripts/gcc-plugins | |
| parent | 18769445ca55c2277d29e35ffda7e9a206b1758f (diff) | |
| parent | d13937116f1e82bf508a6325111b322c30c85eb9 (diff) | |
Merge branch 'i2c/for-current' into i2c/for-5.1
Diffstat (limited to 'scripts/gcc-plugins')
| -rw-r--r-- | scripts/gcc-plugins/arm_ssp_per_task_plugin.c | 23 |
1 files changed, 21 insertions, 2 deletions
diff --git a/scripts/gcc-plugins/arm_ssp_per_task_plugin.c b/scripts/gcc-plugins/arm_ssp_per_task_plugin.c index de70b8470971..89c47f57d1ce 100644 --- a/scripts/gcc-plugins/arm_ssp_per_task_plugin.c +++ b/scripts/gcc-plugins/arm_ssp_per_task_plugin.c @@ -13,7 +13,7 @@ static unsigned int arm_pertask_ssp_rtl_execute(void) for (insn = get_insns(); insn; insn = NEXT_INSN(insn)) { const char *sym; rtx body; - rtx masked_sp; + rtx mask, masked_sp; /* * Find a SET insn involving a SYMBOL_REF to __stack_chk_guard @@ -33,12 +33,13 @@ static unsigned int arm_pertask_ssp_rtl_execute(void) * produces the address of the copy of the stack canary value * stored in struct thread_info */ + mask = GEN_INT(sext_hwi(sp_mask, GET_MODE_PRECISION(Pmode))); masked_sp = gen_reg_rtx(Pmode); emit_insn_before(gen_rtx_SET(masked_sp, gen_rtx_AND(Pmode, stack_pointer_rtx, - GEN_INT(sp_mask))), + mask)), insn); SET_SRC(body) = gen_rtx_PLUS(Pmode, masked_sp, @@ -52,6 +53,19 @@ static unsigned int arm_pertask_ssp_rtl_execute(void) #define NO_GATE #include "gcc-generate-rtl-pass.h" +#if BUILDING_GCC_VERSION >= 9000 +static bool no(void) +{ + return false; +} + +static void arm_pertask_ssp_start_unit(void *gcc_data, void *user_data) +{ + targetm.have_stack_protect_combined_set = no; + targetm.have_stack_protect_combined_test = no; +} +#endif + __visible int plugin_init(struct plugin_name_args *plugin_info, struct plugin_gcc_version *version) { @@ -99,5 +113,10 @@ __visible int plugin_init(struct plugin_name_args *plugin_info, register_callback(plugin_info->base_name, PLUGIN_PASS_MANAGER_SETUP, NULL, &arm_pertask_ssp_rtl_pass_info); +#if BUILDING_GCC_VERSION >= 9000 + register_callback(plugin_info->base_name, PLUGIN_START_UNIT, + arm_pertask_ssp_start_unit, NULL); +#endif + return 0; } |