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14 commits

Author SHA1 Message Date
Christophe Leroy
e009fa4335 powerpc/ptrace: Consolidate reg index calculation 
Today we have:

	#ifdef CONFIG_PPC32
		index = addr >> 2;
		if ((addr & 3) || child->thread.regs == NULL)
	#else
		index = addr >> 3;
		if ((addr & 7))
	#endif

sizeof(long) has value 4 for PPC32 and value 8 for PPC64.

Dividing by 4 is equivalent to >> 2 and dividing by 8 is equivalent
to >> 3.

And 3 and 7 are respectively (sizeof(long) - 1).

Use sizeof(long) to get rid of the #ifdef CONFIG_PPC32 and consolidate
the calculation and checking.

thread.regs have to be not NULL on both PPC32 and PPC64 so adding
that test on PPC64 is harmless.

Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/3cd1e284e93c60db981659585e18d1f6bb73ed2f.1597770847.git.christophe.leroy@csgroup.eu
 2020-12-04 01:01:11 +11:00
Christophe Leroy
ccbed90b82 powerpc/ptrace: move ptrace_triggered() into hw_breakpoint.c 
ptrace_triggered() is declared in asm/hw_breakpoint.h and
only needed when CONFIG_HW_BREAKPOINT is set, so move it
into hw_breakpoint.c

Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/8402c516023da1371953a65af7df2008758ea0c4.1582848567.git.christophe.leroy@c-s.fr
 2020-04-01 14:30:49 +11:00
Christophe Leroy
da529d4739 powerpc/ptrace: create ppc_gethwdinfo() 
Create ippc_gethwdinfo() to handle PPC_PTRACE_GETHWDBGINFO and
reduce ifdef mess

Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/82fefcc1ec75b96cece792878217a5d85ecda0c2.1582848567.git.christophe.leroy@c-s.fr
 2020-04-01 14:30:49 +11:00
Christophe Leroy
e08227d25a powerpc/ptrace: create ptrace_get_debugreg() 
Create ptrace_get_debugreg() to handle PTRACE_GET_DEBUGREG and
reduce ifdef mess

Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/c1482c41a39cc216f4073a51070d8680f52d5054.1582848567.git.christophe.leroy@c-s.fr
 2020-04-01 14:30:49 +11:00
Christophe Leroy
323a780ca1 powerpc/ptrace: split out ADV_DEBUG_REGS related functions. 
Move ADV_DEBUG_REGS functions out of ptrace.c, into
ptrace-adv.c and ptrace-noadv.c

Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr>
[mpe: Squash in fixup patch from Christophe]
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/e2bd7d275bd5933d848aad4fee3ca652a14d039b.1582848567.git.christophe.leroy@c-s.fr
 2020-04-01 14:30:49 +11:00
Christophe Leroy
6e0b79750c powerpc/ptrace: move register viewing functions out of ptrace.c 
Create a dedicated ptrace-view.c file.

Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/bfd8c3ed57c9057e4a5d3816737b5ee98c6f7e43.1582848567.git.christophe.leroy@c-s.fr
 2020-04-01 14:30:48 +11:00
Christophe Leroy
7c1f8db019 powerpc/ptrace: split out TRANSACTIONAL_MEM related functions. 
Move TRANSACTIONAL_MEM functions out of ptrace.c, into
ptrace-tm.c

Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/2d0ef3bb2610c0344bd42252c7134f429818c000.1582848567.git.christophe.leroy@c-s.fr
 2020-04-01 14:30:48 +11:00
Christophe Leroy
60ef9dbd9d powerpc/ptrace: split out SPE related functions. 
Move CONFIG_SPE functions out of ptrace.c, into
ptrace-spe.c

Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/0f17a331760310b5562fae3791cdd3cf9c64237b.1582848567.git.christophe.leroy@c-s.fr
 2020-04-01 14:30:48 +11:00
Christophe Leroy
1b20773b00 powerpc/ptrace: split out ALTIVEC related functions. 
Move CONFIG_ALTIVEC functions out of ptrace.c, into
ptrace-altivec.c

Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/35dae891d01c817fca0fd6ab406a3a2c7bf07f60.1582848567.git.christophe.leroy@c-s.fr
 2020-04-01 14:30:48 +11:00
Christophe Leroy
7b99ed4e8e powerpc/ptrace: split out VSX related functions. 
Move CONFIG_VSX functions out of ptrace.c, into
ptrace-vsx.c and ptrace-novsx.c

Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/dc8e20c8c95b7e83add0c6dd48f9470628896c5c.1582848567.git.christophe.leroy@c-s.fr
 2020-04-01 14:30:48 +11:00
Christophe Leroy
963ae6b2ff powerpc/ptrace: drop PARAMETER_SAVE_AREA_OFFSET 
PARAMETER_SAVE_AREA_OFFSET is not used, drop it.

Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/6dac2b49207647f75cbf0e6771a545e691f0fd93.1582848567.git.christophe.leroy@c-s.fr
 2020-04-01 14:30:47 +11:00
Christophe Leroy
f1763e623c powerpc/ptrace: drop unnecessary #ifdefs CONFIG_PPC64 
Drop a bunch of #ifdefs CONFIG_PPC64 that are not vital.

Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/af38b87a7e1e3efe4f9b664eaeb029e6e7d69fdb.1582848567.git.christophe.leroy@c-s.fr
 2020-04-01 14:30:47 +11:00
Christophe Leroy
b3138536c8 powerpc/ptrace: remove unused header includes 
Remove unused header includes in ptrace.c and ptrace32.c

Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/6276df0be87a4329c2bb46b3b0f02059ae9e70e6.1582848567.git.christophe.leroy@c-s.fr
 2020-04-01 14:30:47 +11:00
Christophe Leroy
da9a1c10e2 powerpc: Move ptrace into a subdirectory. 
In order to allow splitting of ptrace depending on the different
CONFIG_ options, create a subdirectory dedicated to ptrace and move
ptrace.c and ptrace32.c into it.

Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/9ebcbe37834e9d447dd97f4381084795a673260c.1582848567.git.christophe.leroy@c-s.fr
 2020-04-01 14:30:41 +11:00
Renamed from arch/powerpc/kernel/ptrace.c (Browse further)