diff --git a/src/x86/Gos-freebsd.c b/src/x86/Gos-freebsd.c index f901cd76..1658820f 100644 --- a/src/x86/Gos-freebsd.c +++ b/src/x86/Gos-freebsd.c @@ -135,3 +135,123 @@ unw_handle_signal_frame (unw_cursor_t *cursor) } return 0; } + +HIDDEN dwarf_loc_t +x86_get_scratch_loc (struct cursor *c, unw_regnum_t reg) +{ + unw_word_t addr = c->sigcontext_addr, fpstate_addr, off; + int ret, is_fpstate = 0; + + switch (c->sigcontext_format) + { + case X86_SCF_NONE: + return DWARF_REG_LOC (&c->dwarf, reg); + + case X86_SCF_FREEBSD_SIGFRAME: + addr += FREEBSD_UC_MCONTEXT_OFF; + break; + + case X86_SCF_FREEBSD_SIGFRAME4: + abort(); + break; + + case X86_SCF_FREEBSD_OSIGFRAME: + /* XXXKIB */ + abort(); + break; + + case X86_SCF_FREEBSD_SYSCALL: + /* XXXKIB */ + abort(); + break; + + default: + /* XXXKIB */ + abort(); + break; + } + + switch (reg) + { + case UNW_X86_GS: off = FREEBSD_UC_MCONTEXT_GS_OFF; break; + case UNW_X86_FS: off = FREEBSD_UC_MCONTEXT_FS_OFF; break; + case UNW_X86_ES: off = FREEBSD_UC_MCONTEXT_ES_OFF; break; + case UNW_X86_DS: off = FREEBSD_UC_MCONTEXT_SS_OFF; break; + case UNW_X86_EDI: off = FREEBSD_UC_MCONTEXT_EDI_OFF; break; + case UNW_X86_ESI: off = FREEBSD_UC_MCONTEXT_ESI_OFF; break; + case UNW_X86_EBP: off = FREEBSD_UC_MCONTEXT_EBP_OFF; break; + case UNW_X86_ESP: off = FREEBSD_UC_MCONTEXT_ESP_OFF; break; + case UNW_X86_EBX: off = FREEBSD_UC_MCONTEXT_EBX_OFF; break; + case UNW_X86_EDX: off = FREEBSD_UC_MCONTEXT_EDX_OFF; break; + case UNW_X86_ECX: off = FREEBSD_UC_MCONTEXT_ECX_OFF; break; + case UNW_X86_EAX: off = FREEBSD_UC_MCONTEXT_EAX_OFF; break; + case UNW_X86_TRAPNO: off = FREEBSD_UC_MCONTEXT_TRAPNO_OFF; break; + case UNW_X86_EIP: off = FREEBSD_UC_MCONTEXT_EIP_OFF; break; + case UNW_X86_CS: off = FREEBSD_UC_MCONTEXT_CS_OFF; break; + case UNW_X86_EFLAGS: off = FREEBSD_UC_MCONTEXT_EFLAGS_OFF; break; + case UNW_X86_SS: off = FREEBSD_UC_MCONTEXT_SS_OFF; break; + + /* XXXKIB fix */ + case UNW_X86_FCW: is_fpstate = 1; off = LINUX_FPSTATE_CW_OFF; break; + case UNW_X86_FSW: is_fpstate = 1; off = LINUX_FPSTATE_SW_OFF; break; + case UNW_X86_FTW: is_fpstate = 1; off = LINUX_FPSTATE_TAG_OFF; break; + case UNW_X86_FCS: is_fpstate = 1; off = LINUX_FPSTATE_CSSEL_OFF; break; + case UNW_X86_FIP: is_fpstate = 1; off = LINUX_FPSTATE_IPOFF_OFF; break; + case UNW_X86_FEA: is_fpstate = 1; off = LINUX_FPSTATE_DATAOFF_OFF; break; + case UNW_X86_FDS: is_fpstate = 1; off = LINUX_FPSTATE_DATASEL_OFF; break; + case UNW_X86_MXCSR: is_fpstate = 1; off = LINUX_FPSTATE_MXCSR_OFF; break; + + /* stacked fp registers */ + case UNW_X86_ST0: case UNW_X86_ST1: case UNW_X86_ST2: case UNW_X86_ST3: + case UNW_X86_ST4: case UNW_X86_ST5: case UNW_X86_ST6: case UNW_X86_ST7: + is_fpstate = 1; + off = LINUX_FPSTATE_ST0_OFF + 10*(reg - UNW_X86_ST0); + break; + + /* SSE fp registers */ + case UNW_X86_XMM0_lo: case UNW_X86_XMM0_hi: + case UNW_X86_XMM1_lo: case UNW_X86_XMM1_hi: + case UNW_X86_XMM2_lo: case UNW_X86_XMM2_hi: + case UNW_X86_XMM3_lo: case UNW_X86_XMM3_hi: + case UNW_X86_XMM4_lo: case UNW_X86_XMM4_hi: + case UNW_X86_XMM5_lo: case UNW_X86_XMM5_hi: + case UNW_X86_XMM6_lo: case UNW_X86_XMM6_hi: + case UNW_X86_XMM7_lo: case UNW_X86_XMM7_hi: + is_fpstate = 1; + off = LINUX_FPSTATE_XMM0_OFF + 8*(reg - UNW_X86_XMM0_lo); + break; + case UNW_X86_XMM0: + case UNW_X86_XMM1: + case UNW_X86_XMM2: + case UNW_X86_XMM3: + case UNW_X86_XMM4: + case UNW_X86_XMM5: + case UNW_X86_XMM6: + case UNW_X86_XMM7: + is_fpstate = 1; + off = LINUX_FPSTATE_XMM0_OFF + 16*(reg - UNW_X86_XMM0); + break; + + case UNW_X86_FOP: + case UNW_X86_TSS: + case UNW_X86_LDT: + default: + return DWARF_REG_LOC (&c->dwarf, reg); + } + + if (is_fpstate) + { + if ((ret = dwarf_get (&c->dwarf, + DWARF_MEM_LOC (&c->dwarf, + addr + LINUX_SC_FPSTATE_OFF), + &fpstate_addr)) < 0) + return DWARF_NULL_LOC; + + if (!fpstate_addr) + return DWARF_NULL_LOC; + + return DWARF_MEM_LOC (c, fpstate_addr + off); + } + else + return DWARF_MEM_LOC (c, addr + off); +} diff --git a/src/x86/Gos-linux.c b/src/x86/Gos-linux.c index 63888a5c..529c6270 100644 --- a/src/x86/Gos-linux.c +++ b/src/x86/Gos-linux.c @@ -135,3 +135,110 @@ unw_handle_signal_frame (unw_cursor_t *cursor) return 0; } + +HIDDEN dwarf_loc_t +x86_get_scratch_loc (struct cursor *c, unw_regnum_t reg) +{ + unw_word_t addr = c->sigcontext_addr, fpstate_addr, off; + int ret, is_fpstate = 0; + + switch (c->sigcontext_format) + { + case X86_SCF_NONE: + return DWARF_REG_LOC (&c->dwarf, reg); + + case X86_SCF_LINUX_SIGFRAME: + break; + + case X86_SCF_LINUX_RT_SIGFRAME: + addr += LINUX_UC_MCONTEXT_OFF; + break; + } + + switch (reg) + { + case UNW_X86_GS: off = LINUX_SC_GS_OFF; break; + case UNW_X86_FS: off = LINUX_SC_FS_OFF; break; + case UNW_X86_ES: off = LINUX_SC_ES_OFF; break; + case UNW_X86_DS: off = LINUX_SC_DS_OFF; break; + case UNW_X86_EDI: off = LINUX_SC_EDI_OFF; break; + case UNW_X86_ESI: off = LINUX_SC_ESI_OFF; break; + case UNW_X86_EBP: off = LINUX_SC_EBP_OFF; break; + case UNW_X86_ESP: off = LINUX_SC_ESP_OFF; break; + case UNW_X86_EBX: off = LINUX_SC_EBX_OFF; break; + case UNW_X86_EDX: off = LINUX_SC_EDX_OFF; break; + case UNW_X86_ECX: off = LINUX_SC_ECX_OFF; break; + case UNW_X86_EAX: off = LINUX_SC_EAX_OFF; break; + case UNW_X86_TRAPNO: off = LINUX_SC_TRAPNO_OFF; break; + case UNW_X86_EIP: off = LINUX_SC_EIP_OFF; break; + case UNW_X86_CS: off = LINUX_SC_CS_OFF; break; + case UNW_X86_EFLAGS: off = LINUX_SC_EFLAGS_OFF; break; + case UNW_X86_SS: off = LINUX_SC_SS_OFF; break; + + /* The following is probably not correct for all possible cases. + Somebody who understands this better should review this for + correctness. */ + + case UNW_X86_FCW: is_fpstate = 1; off = LINUX_FPSTATE_CW_OFF; break; + case UNW_X86_FSW: is_fpstate = 1; off = LINUX_FPSTATE_SW_OFF; break; + case UNW_X86_FTW: is_fpstate = 1; off = LINUX_FPSTATE_TAG_OFF; break; + case UNW_X86_FCS: is_fpstate = 1; off = LINUX_FPSTATE_CSSEL_OFF; break; + case UNW_X86_FIP: is_fpstate = 1; off = LINUX_FPSTATE_IPOFF_OFF; break; + case UNW_X86_FEA: is_fpstate = 1; off = LINUX_FPSTATE_DATAOFF_OFF; break; + case UNW_X86_FDS: is_fpstate = 1; off = LINUX_FPSTATE_DATASEL_OFF; break; + case UNW_X86_MXCSR: is_fpstate = 1; off = LINUX_FPSTATE_MXCSR_OFF; break; + + /* stacked fp registers */ + case UNW_X86_ST0: case UNW_X86_ST1: case UNW_X86_ST2: case UNW_X86_ST3: + case UNW_X86_ST4: case UNW_X86_ST5: case UNW_X86_ST6: case UNW_X86_ST7: + is_fpstate = 1; + off = LINUX_FPSTATE_ST0_OFF + 10*(reg - UNW_X86_ST0); + break; + + /* SSE fp registers */ + case UNW_X86_XMM0_lo: case UNW_X86_XMM0_hi: + case UNW_X86_XMM1_lo: case UNW_X86_XMM1_hi: + case UNW_X86_XMM2_lo: case UNW_X86_XMM2_hi: + case UNW_X86_XMM3_lo: case UNW_X86_XMM3_hi: + case UNW_X86_XMM4_lo: case UNW_X86_XMM4_hi: + case UNW_X86_XMM5_lo: case UNW_X86_XMM5_hi: + case UNW_X86_XMM6_lo: case UNW_X86_XMM6_hi: + case UNW_X86_XMM7_lo: case UNW_X86_XMM7_hi: + is_fpstate = 1; + off = LINUX_FPSTATE_XMM0_OFF + 8*(reg - UNW_X86_XMM0_lo); + break; + case UNW_X86_XMM0: + case UNW_X86_XMM1: + case UNW_X86_XMM2: + case UNW_X86_XMM3: + case UNW_X86_XMM4: + case UNW_X86_XMM5: + case UNW_X86_XMM6: + case UNW_X86_XMM7: + is_fpstate = 1; + off = LINUX_FPSTATE_XMM0_OFF + 16*(reg - UNW_X86_XMM0); + break; + + case UNW_X86_FOP: + case UNW_X86_TSS: + case UNW_X86_LDT: + default: + return DWARF_REG_LOC (&c->dwarf, reg); + } + + if (is_fpstate) + { + if ((ret = dwarf_get (&c->dwarf, + DWARF_MEM_LOC (&c->dwarf, + addr + LINUX_SC_FPSTATE_OFF), + &fpstate_addr)) < 0) + return DWARF_NULL_LOC; + + if (!fpstate_addr) + return DWARF_NULL_LOC; + + return DWARF_MEM_LOC (c, fpstate_addr + off); + } + else + return DWARF_MEM_LOC (c, addr + off); +} diff --git a/src/x86/Gregs.c b/src/x86/Gregs.c index 9f251096..05bc1a30 100644 --- a/src/x86/Gregs.c +++ b/src/x86/Gregs.c @@ -26,245 +26,11 @@ WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */ #include "offsets.h" #include "unwind_i.h" -#if defined __linux__ -static inline dwarf_loc_t -get_scratch_loc (struct cursor *c, unw_regnum_t reg) -{ - unw_word_t addr = c->sigcontext_addr, fpstate_addr, off; - int ret, is_fpstate = 0; - - switch (c->sigcontext_format) - { - case X86_SCF_NONE: - return DWARF_REG_LOC (&c->dwarf, reg); - - case X86_SCF_LINUX_SIGFRAME: - break; - - case X86_SCF_LINUX_RT_SIGFRAME: - addr += LINUX_UC_MCONTEXT_OFF; - break; - } - - switch (reg) - { - case UNW_X86_GS: off = LINUX_SC_GS_OFF; break; - case UNW_X86_FS: off = LINUX_SC_FS_OFF; break; - case UNW_X86_ES: off = LINUX_SC_ES_OFF; break; - case UNW_X86_DS: off = LINUX_SC_DS_OFF; break; - case UNW_X86_EDI: off = LINUX_SC_EDI_OFF; break; - case UNW_X86_ESI: off = LINUX_SC_ESI_OFF; break; - case UNW_X86_EBP: off = LINUX_SC_EBP_OFF; break; - case UNW_X86_ESP: off = LINUX_SC_ESP_OFF; break; - case UNW_X86_EBX: off = LINUX_SC_EBX_OFF; break; - case UNW_X86_EDX: off = LINUX_SC_EDX_OFF; break; - case UNW_X86_ECX: off = LINUX_SC_ECX_OFF; break; - case UNW_X86_EAX: off = LINUX_SC_EAX_OFF; break; - case UNW_X86_TRAPNO: off = LINUX_SC_TRAPNO_OFF; break; - case UNW_X86_EIP: off = LINUX_SC_EIP_OFF; break; - case UNW_X86_CS: off = LINUX_SC_CS_OFF; break; - case UNW_X86_EFLAGS: off = LINUX_SC_EFLAGS_OFF; break; - case UNW_X86_SS: off = LINUX_SC_SS_OFF; break; - - /* The following is probably not correct for all possible cases. - Somebody who understands this better should review this for - correctness. */ - - case UNW_X86_FCW: is_fpstate = 1; off = LINUX_FPSTATE_CW_OFF; break; - case UNW_X86_FSW: is_fpstate = 1; off = LINUX_FPSTATE_SW_OFF; break; - case UNW_X86_FTW: is_fpstate = 1; off = LINUX_FPSTATE_TAG_OFF; break; - case UNW_X86_FCS: is_fpstate = 1; off = LINUX_FPSTATE_CSSEL_OFF; break; - case UNW_X86_FIP: is_fpstate = 1; off = LINUX_FPSTATE_IPOFF_OFF; break; - case UNW_X86_FEA: is_fpstate = 1; off = LINUX_FPSTATE_DATAOFF_OFF; break; - case UNW_X86_FDS: is_fpstate = 1; off = LINUX_FPSTATE_DATASEL_OFF; break; - case UNW_X86_MXCSR: is_fpstate = 1; off = LINUX_FPSTATE_MXCSR_OFF; break; - - /* stacked fp registers */ - case UNW_X86_ST0: case UNW_X86_ST1: case UNW_X86_ST2: case UNW_X86_ST3: - case UNW_X86_ST4: case UNW_X86_ST5: case UNW_X86_ST6: case UNW_X86_ST7: - is_fpstate = 1; - off = LINUX_FPSTATE_ST0_OFF + 10*(reg - UNW_X86_ST0); - break; - - /* SSE fp registers */ - case UNW_X86_XMM0_lo: case UNW_X86_XMM0_hi: - case UNW_X86_XMM1_lo: case UNW_X86_XMM1_hi: - case UNW_X86_XMM2_lo: case UNW_X86_XMM2_hi: - case UNW_X86_XMM3_lo: case UNW_X86_XMM3_hi: - case UNW_X86_XMM4_lo: case UNW_X86_XMM4_hi: - case UNW_X86_XMM5_lo: case UNW_X86_XMM5_hi: - case UNW_X86_XMM6_lo: case UNW_X86_XMM6_hi: - case UNW_X86_XMM7_lo: case UNW_X86_XMM7_hi: - is_fpstate = 1; - off = LINUX_FPSTATE_XMM0_OFF + 8*(reg - UNW_X86_XMM0_lo); - break; - case UNW_X86_XMM0: - case UNW_X86_XMM1: - case UNW_X86_XMM2: - case UNW_X86_XMM3: - case UNW_X86_XMM4: - case UNW_X86_XMM5: - case UNW_X86_XMM6: - case UNW_X86_XMM7: - is_fpstate = 1; - off = LINUX_FPSTATE_XMM0_OFF + 16*(reg - UNW_X86_XMM0); - break; - - case UNW_X86_FOP: - case UNW_X86_TSS: - case UNW_X86_LDT: - default: - return DWARF_REG_LOC (&c->dwarf, reg); - } - - if (is_fpstate) - { - if ((ret = dwarf_get (&c->dwarf, - DWARF_MEM_LOC (&c->dwarf, - addr + LINUX_SC_FPSTATE_OFF), - &fpstate_addr)) < 0) - return DWARF_NULL_LOC; - - if (!fpstate_addr) - return DWARF_NULL_LOC; - - return DWARF_MEM_LOC (c, fpstate_addr + off); - } - else - return DWARF_MEM_LOC (c, addr + off); -} -#elif defined __FreeBSD__ -static inline dwarf_loc_t -get_scratch_loc (struct cursor *c, unw_regnum_t reg) -{ - unw_word_t addr = c->sigcontext_addr, fpstate_addr, off; - int ret, is_fpstate = 0; - - switch (c->sigcontext_format) - { - case X86_SCF_NONE: - return DWARF_REG_LOC (&c->dwarf, reg); - - case X86_SCF_FREEBSD_SIGFRAME: - addr += FREEBSD_UC_MCONTEXT_OFF; - break; - - case X86_SCF_FREEBSD_SIGFRAME4: - abort(); - break; - - case X86_SCF_FREEBSD_OSIGFRAME: - /* XXXKIB */ - abort(); - break; - - case X86_SCF_FREEBSD_SYSCALL: - /* XXXKIB */ - abort(); - break; - - default: - /* XXXKIB */ - abort(); - break; - } - - switch (reg) - { - case UNW_X86_GS: off = FREEBSD_UC_MCONTEXT_GS_OFF; break; - case UNW_X86_FS: off = FREEBSD_UC_MCONTEXT_FS_OFF; break; - case UNW_X86_ES: off = FREEBSD_UC_MCONTEXT_ES_OFF; break; - case UNW_X86_DS: off = FREEBSD_UC_MCONTEXT_SS_OFF; break; - case UNW_X86_EDI: off = FREEBSD_UC_MCONTEXT_EDI_OFF; break; - case UNW_X86_ESI: off = FREEBSD_UC_MCONTEXT_ESI_OFF; break; - case UNW_X86_EBP: off = FREEBSD_UC_MCONTEXT_EBP_OFF; break; - case UNW_X86_ESP: off = FREEBSD_UC_MCONTEXT_ESP_OFF; break; - case UNW_X86_EBX: off = FREEBSD_UC_MCONTEXT_EBX_OFF; break; - case UNW_X86_EDX: off = FREEBSD_UC_MCONTEXT_EDX_OFF; break; - case UNW_X86_ECX: off = FREEBSD_UC_MCONTEXT_ECX_OFF; break; - case UNW_X86_EAX: off = FREEBSD_UC_MCONTEXT_EAX_OFF; break; - case UNW_X86_TRAPNO: off = FREEBSD_UC_MCONTEXT_TRAPNO_OFF; break; - case UNW_X86_EIP: off = FREEBSD_UC_MCONTEXT_EIP_OFF; break; - case UNW_X86_CS: off = FREEBSD_UC_MCONTEXT_CS_OFF; break; - case UNW_X86_EFLAGS: off = FREEBSD_UC_MCONTEXT_EFLAGS_OFF; break; - case UNW_X86_SS: off = FREEBSD_UC_MCONTEXT_SS_OFF; break; - - /* The following is probably not correct for all possible cases. - Somebody who understands this better should review this for - correctness. */ - - case UNW_X86_FCW: is_fpstate = 1; off = LINUX_FPSTATE_CW_OFF; break; - case UNW_X86_FSW: is_fpstate = 1; off = LINUX_FPSTATE_SW_OFF; break; - case UNW_X86_FTW: is_fpstate = 1; off = LINUX_FPSTATE_TAG_OFF; break; - case UNW_X86_FCS: is_fpstate = 1; off = LINUX_FPSTATE_CSSEL_OFF; break; - case UNW_X86_FIP: is_fpstate = 1; off = LINUX_FPSTATE_IPOFF_OFF; break; - case UNW_X86_FEA: is_fpstate = 1; off = LINUX_FPSTATE_DATAOFF_OFF; break; - case UNW_X86_FDS: is_fpstate = 1; off = LINUX_FPSTATE_DATASEL_OFF; break; - case UNW_X86_MXCSR: is_fpstate = 1; off = LINUX_FPSTATE_MXCSR_OFF; break; - - /* stacked fp registers */ - case UNW_X86_ST0: case UNW_X86_ST1: case UNW_X86_ST2: case UNW_X86_ST3: - case UNW_X86_ST4: case UNW_X86_ST5: case UNW_X86_ST6: case UNW_X86_ST7: - is_fpstate = 1; - off = LINUX_FPSTATE_ST0_OFF + 10*(reg - UNW_X86_ST0); - break; - - /* SSE fp registers */ - case UNW_X86_XMM0_lo: case UNW_X86_XMM0_hi: - case UNW_X86_XMM1_lo: case UNW_X86_XMM1_hi: - case UNW_X86_XMM2_lo: case UNW_X86_XMM2_hi: - case UNW_X86_XMM3_lo: case UNW_X86_XMM3_hi: - case UNW_X86_XMM4_lo: case UNW_X86_XMM4_hi: - case UNW_X86_XMM5_lo: case UNW_X86_XMM5_hi: - case UNW_X86_XMM6_lo: case UNW_X86_XMM6_hi: - case UNW_X86_XMM7_lo: case UNW_X86_XMM7_hi: - is_fpstate = 1; - off = LINUX_FPSTATE_XMM0_OFF + 8*(reg - UNW_X86_XMM0_lo); - break; - case UNW_X86_XMM0: - case UNW_X86_XMM1: - case UNW_X86_XMM2: - case UNW_X86_XMM3: - case UNW_X86_XMM4: - case UNW_X86_XMM5: - case UNW_X86_XMM6: - case UNW_X86_XMM7: - is_fpstate = 1; - off = LINUX_FPSTATE_XMM0_OFF + 16*(reg - UNW_X86_XMM0); - break; - - case UNW_X86_FOP: - case UNW_X86_TSS: - case UNW_X86_LDT: - default: - return DWARF_REG_LOC (&c->dwarf, reg); - } - - if (is_fpstate) - { - if ((ret = dwarf_get (&c->dwarf, - DWARF_MEM_LOC (&c->dwarf, - addr + LINUX_SC_FPSTATE_OFF), - &fpstate_addr)) < 0) - return DWARF_NULL_LOC; - - if (!fpstate_addr) - return DWARF_NULL_LOC; - - return DWARF_MEM_LOC (c, fpstate_addr + off); - } - else - return DWARF_MEM_LOC (c, addr + off); -} -#else -#error Port me -#endif - HIDDEN dwarf_loc_t x86_scratch_loc (struct cursor *c, unw_regnum_t reg) { if (c->sigcontext_addr) - return get_scratch_loc (c, reg); + return x86_get_scratch_loc (c, reg); else return DWARF_REG_LOC (&c->dwarf, reg); } diff --git a/src/x86/unwind_i.h b/src/x86/unwind_i.h index 63477191..1fe39008 100644 --- a/src/x86/unwind_i.h +++ b/src/x86/unwind_i.h @@ -51,10 +51,12 @@ WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */ #define x86_local_resume UNW_OBJ(local_resume) #define x86_local_addr_space_init UNW_OBJ(local_addr_space_init) #define x86_scratch_loc UNW_OBJ(scratch_loc) +#define x86_get_scratch_loc UNW_OBJ(get_scratch_loc) extern void x86_local_addr_space_init (void); extern int x86_local_resume (unw_addr_space_t as, unw_cursor_t *cursor, void *arg); extern dwarf_loc_t x86_scratch_loc (struct cursor *c, unw_regnum_t reg); +extern dwarf_loc_t x86_get_scratch_loc (struct cursor *c, unw_regnum_t reg); #endif /* unwind_i_h */