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ef42295fe8
This makes it possible to get backtraces with executables
(including DLLs/SOs) like we had it already with -g -run.
Option -b includes -bt, and -bt includes -g.
- new file lib/bt-exe.c: used to link rt_printline and the
exception handler from tccrun.c into executables/DLLs.
- new file lib/bt-log.c: provides a function that may be
called from user code to print out a backtrace with a
message (currently for i386/x86_64 only):
int (*tcc_backtrace)(const char *fmt, ...);
As an extra hack, if 'fmt' is prefixed like "^file.c^..."
then the backtrace will skip calls from within 'file.c'.
- new file lib/bt-dll.c: used on win32 to link the backtrace
and bcheck functions with the main module at runtime
- bcheck.c: now uses the tcc_backtrace function from above
- tccgen.c: minor cleanups
- tccelf.c: stab sections get SHF_ALLOC for easy access.
Also in relocate_section(): 64bit relocations for stabs
in DLLs cannot work. To find DLL addresses, the DLL base
is added manually in tccrun.c via rc.prog_base instead.
- tccpe.c: there are some changes to allow merging sections,
used to merge .finit_array into .data in the first place.
- tccpp.c: tcc -run now #defines __TCC_RUN__
also: refactor a line in tal_realloc that was incompatible
with bcheck
- tcctest.c: fixed a problem with r12 which tcc cannot preserve
as well as gcc does.
- tests2/112_backtrace.c: test the feature and the bcheck test18
that previously was in boundtest.c
165 lines
5.4 KiB
Plaintext
165 lines
5.4 KiB
Plaintext
[test_backtrace_1]
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* main
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* f1()
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* f2()
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* f3()
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112_backtrace.c:9: at f3: RUNTIME ERROR: invalid memory access
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112_backtrace.c:14: by f2
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112_backtrace.c:19: by f1
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112_backtrace.c:24: by main
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[returns 255]
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[test_bcheck_1]
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* main
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* f1()
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112_backtrace.c:38: at f1: BCHECK: ........ is outside of the region
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112_backtrace.c:43: by main
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112_backtrace.c:38: at f1: BCHECK: invalid pointer ........, size 0x14 in memmove dest
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112_backtrace.c:43: by main
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[returns 255]
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[test_tcc_backtrace_2]
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* main
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* f1()
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112_backtrace.c:64: at f1: Hello from f1!
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112_backtrace.c:70: by main
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* f2()
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* exit f2
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[returns 34]
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[test_tcc_backtrace_3]
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* main
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[returns 1]
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[test_bcheck_100]
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112_backtrace.c:107: at main: BCHECK: ........ is outside of the region
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112_backtrace.c:107: at main: BCHECK: invalid pointer ........, size 0xa in memcpy dest
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[returns 255]
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[test_bcheck_101]
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112_backtrace.c:109: at main: BCHECK: ........ is outside of the region
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112_backtrace.c:109: at main: BCHECK: invalid pointer ........, size 0xa in memcpy src
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[returns 255]
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[test_bcheck_102]
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112_backtrace.c:111: at main: BCHECK: overlapping regions ........(0x4), ........(0x4) in memcpy
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[returns 255]
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[test_bcheck_103]
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112_backtrace.c:113: at main: BCHECK: overlapping regions ........(0x4), ........(0x4) in memcpy
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[returns 255]
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[test_bcheck_104]
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112_backtrace.c:115: at main: BCHECK: ........ is outside of the region
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112_backtrace.c:115: at main: BCHECK: invalid pointer ........, size 0xa in memcmp s1
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[returns 255]
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[test_bcheck_105]
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112_backtrace.c:117: at main: BCHECK: ........ is outside of the region
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112_backtrace.c:117: at main: BCHECK: invalid pointer ........, size 0xa in memcmp s2
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[returns 255]
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[test_bcheck_106]
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112_backtrace.c:119: at main: BCHECK: ........ is outside of the region
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112_backtrace.c:119: at main: BCHECK: invalid pointer ........, size 0xa in memmove dest
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[returns 255]
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[test_bcheck_107]
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112_backtrace.c:121: at main: BCHECK: ........ is outside of the region
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112_backtrace.c:121: at main: BCHECK: invalid pointer ........, size 0xa in memmove src
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[returns 255]
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[test_bcheck_108]
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112_backtrace.c:123: at main: BCHECK: ........ is outside of the region
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112_backtrace.c:123: at main: BCHECK: invalid pointer ........, size 0xa in memset
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[returns 255]
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[test_bcheck_109]
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112_backtrace.c:125: at main: BCHECK: ........ is outside of the region
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112_backtrace.c:125: at main: BCHECK: invalid pointer ........, size 0xb in strlen
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[returns 255]
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[test_bcheck_110]
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112_backtrace.c:127: at main: BCHECK: ........ is outside of the region
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112_backtrace.c:127: at main: BCHECK: invalid pointer ........, size 0x4 in strcpy dest
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[returns 255]
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[test_bcheck_111]
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112_backtrace.c:129: at main: BCHECK: ........ is outside of the region
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112_backtrace.c:129: at main: BCHECK: invalid pointer ........, size 0x4 in strcpy src
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[returns 255]
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[test_bcheck_112]
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112_backtrace.c:131: at main: BCHECK: overlapping regions ........(0x3), ........(0x3) in strcpy
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[returns 255]
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[test_bcheck_113]
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112_backtrace.c:133: at main: BCHECK: overlapping regions ........(0x4), ........(0x4) in strcpy
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[returns 255]
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[test_bcheck_114]
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112_backtrace.c:135: at main: BCHECK: ........ is outside of the region
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112_backtrace.c:135: at main: BCHECK: invalid pointer ........, size 0x4 in strncpy dest
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[returns 255]
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[test_bcheck_115]
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112_backtrace.c:137: at main: BCHECK: ........ is outside of the region
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112_backtrace.c:137: at main: BCHECK: invalid pointer ........, size 0x4 in strncpy src
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[returns 255]
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[test_bcheck_116]
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112_backtrace.c:139: at main: BCHECK: overlapping regions ........(0x3), ........(0x3) in strncpy
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[returns 255]
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[test_bcheck_117]
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112_backtrace.c:141: at main: BCHECK: overlapping regions ........(0x4), ........(0x4) in strncpy
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[returns 255]
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[test_bcheck_118]
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112_backtrace.c:143: at main: BCHECK: ........ is outside of the region
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112_backtrace.c:143: at main: BCHECK: invalid pointer ........, size 0x9 in strcmp s1
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[returns 255]
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[test_bcheck_119]
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112_backtrace.c:145: at main: BCHECK: ........ is outside of the region
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112_backtrace.c:145: at main: BCHECK: invalid pointer ........, size 0x9 in strcmp s2
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[returns 255]
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[test_bcheck_120]
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112_backtrace.c:147: at main: BCHECK: ........ is outside of the region
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112_backtrace.c:147: at main: BCHECK: invalid pointer ........, size 0x6 in strncmp s1
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[returns 255]
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[test_bcheck_121]
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112_backtrace.c:149: at main: BCHECK: ........ is outside of the region
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112_backtrace.c:149: at main: BCHECK: invalid pointer ........, size 0x6 in strncmp s2
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[returns 255]
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[test_bcheck_122]
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112_backtrace.c:151: at main: BCHECK: ........ is outside of the region
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112_backtrace.c:151: at main: BCHECK: invalid pointer ........, size 0x6 in strcat dest
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[returns 255]
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[test_bcheck_123]
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112_backtrace.c:153: at main: BCHECK: ........ is outside of the region
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112_backtrace.c:153: at main: BCHECK: invalid pointer ........, size 0x6 in strcat src
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[returns 255]
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[test_bcheck_124]
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112_backtrace.c:155: at main: BCHECK: overlapping regions ........(0x9), ........(0x6) in strcat
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[returns 255]
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[test_bcheck_125]
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112_backtrace.c:157: at main: BCHECK: overlapping regions ........(0x4), ........(0x4) in strcat
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[returns 255]
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[test_bcheck_126]
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112_backtrace.c:159: at main: BCHECK: ........ is outside of the region
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112_backtrace.c:159: at main: BCHECK: invalid pointer ........, size 0xb in strchr
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[returns 255]
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[test_bcheck_127]
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112_backtrace.c:161: at main: BCHECK: ........ is outside of the region
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112_backtrace.c:161: at main: BCHECK: invalid pointer ........, size 0xb in strdup
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[returns 255]
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