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90f9d70a58
As is pointed out in http://www.gelato.org/community/view_linear.php?id=1_1036&from=authors&value=Ian%20Wienand#1_1039, if single step on break instruction, the break fault has higher priority than the single-step trap. When the break fault handler is entered, it advances the IP by 1 instruction so break instruction single-stepping is skipped, actually it is next instruction which is single stepped. This patch modifies this, it adds TIF_SINGLESTEP bit for thread flags, and generate a fake sigtrap when single stepping break instruction. Test case in attachment can verify this. Any comments is welcome. Signed-off-by: bibo, mao <bibo.mao@intel.com> Signed-off-by: Tony Luck <tony.luck@intel.com> |
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| dig | ||
| hp | ||
| ia32 | ||
| kernel | ||
| lib | ||
| mm | ||
| oprofile | ||
| pci | ||
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| sn | ||
| defconfig | ||
| install.sh | ||
| Kconfig | ||
| Kconfig.debug | ||
| Makefile | ||
| module.lds | ||